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Expand PMF_FN_* macros.
[netbsd-mini2440.git] / dist / tcpdump / print-dhcp6.c
blobf1d8191f4187cfd9d425c34a38ae6d393be4ba03
1 /* $NetBSD$ */
2
3 /*
4 * Copyright (C) 1998 and 1999 WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31 /*
32 * RFC3315: DHCPv6
33 * supported DHCPv6 options:
34 * RFC3319,
35 * RFC3633,
36 * RFC3646,
37 * RFC3898,
38 * RFC4075,
39 * RFC4242,
40 * RFC4280,
41 */
42
43 #include <sys/cdefs.h>
44 #ifndef lint
45 #if 0
46 static const char rcsid[] _U_ =
47 "@(#) Header: /tcpdump/master/tcpdump/print-dhcp6.c,v 1.35.2.1 2006/10/25 22:04:36 guy Exp";
48 #else
49 __RCSID("$NetBSD: tcpdump2rcsid.ex,v 1.1 2001/06/25 20:09:58 itojun Exp $");
50 #endif
51 #endif
52
53 #ifdef HAVE_CONFIG_H
54 #include "config.h"
55 #endif
56
57 #include <tcpdump-stdinc.h>
58
59 #include <stdio.h>
60 #include <string.h>
61
62 #include "interface.h"
63 #include "addrtoname.h"
64 #include "extract.h"
65
66 /* lease duration */
67 #define DHCP6_DURATITION_INFINITE 0xffffffff
68
69 /* Error Values */
70 #define DH6ERR_FAILURE 16
71 #define DH6ERR_AUTHFAIL 17
72 #define DH6ERR_POORLYFORMED 18
73 #define DH6ERR_UNAVAIL 19
74 #define DH6ERR_OPTUNAVAIL 20
75
76 /* Message type */
77 #define DH6_SOLICIT 1
78 #define DH6_ADVERTISE 2
79 #define DH6_REQUEST 3
80 #define DH6_CONFIRM 4
81 #define DH6_RENEW 5
82 #define DH6_REBIND 6
83 #define DH6_REPLY 7
84 #define DH6_RELEASE 8
85 #define DH6_DECLINE 9
86 #define DH6_RECONFIGURE 10
87 #define DH6_INFORM_REQ 11
88 #define DH6_RELAY_FORW 12
89 #define DH6_RELAY_REPLY 13
90
91 /* DHCP6 base packet format */
92 struct dhcp6 {
93 union {
94 u_int8_t m;
95 u_int32_t x;
96 } dh6_msgtypexid;
97 /* options follow */
98 };
99 #define dh6_msgtype dh6_msgtypexid.m
100 #define dh6_xid dh6_msgtypexid.x
101 #define DH6_XIDMASK 0x00ffffff
102
103 /* DHCPv6 relay messages */
104 struct dhcp6_relay {
105 u_int8_t dh6relay_msgtype;
106 u_int8_t dh6relay_hcnt;
107 u_int8_t dh6relay_linkaddr[16]; /* XXX: badly aligned */
108 u_int8_t dh6relay_peeraddr[16];
109 /* options follow */
110 };
111
112 /* options */
113 #define DH6OPT_CLIENTID 1
114 #define DH6OPT_SERVERID 2
115 #define DH6OPT_IA_NA 3
116 #define DH6OPT_IA_TA 4
117 #define DH6OPT_IA_ADDR 5
118 #define DH6OPT_ORO 6
119 #define DH6OPT_PREFERENCE 7
120 # define DH6OPT_PREF_MAX 255
121 #define DH6OPT_ELAPSED_TIME 8
122 #define DH6OPT_RELAY_MSG 9
123 /*#define DH6OPT_SERVER_MSG 10 deprecated */
124 #define DH6OPT_AUTH 11
125 # define DH6OPT_AUTHPROTO_DELAYED 2
126 # define DH6OPT_AUTHPROTO_RECONFIG 3
127 # define DH6OPT_AUTHALG_HMACMD5 1
128 # define DH6OPT_AUTHRDM_MONOCOUNTER 0
129 # define DH6OPT_AUTHRECONFIG_KEY 1
130 # define DH6OPT_AUTHRECONFIG_HMACMD5 2
131 #define DH6OPT_UNICAST 12
132 #define DH6OPT_STATUS_CODE 13
133 # define DH6OPT_STCODE_SUCCESS 0
134 # define DH6OPT_STCODE_UNSPECFAIL 1
135 # define DH6OPT_STCODE_NOADDRAVAIL 2
136 # define DH6OPT_STCODE_NOBINDING 3
137 # define DH6OPT_STCODE_NOTONLINK 4
138 # define DH6OPT_STCODE_USEMULTICAST 5
139 # define DH6OPT_STCODE_NOPREFIXAVAIL 6
140 #define DH6OPT_RAPID_COMMIT 14
141 #define DH6OPT_USER_CLASS 15
142 #define DH6OPT_VENDOR_CLASS 16
143 #define DH6OPT_VENDOR_OPTS 17
144 #define DH6OPT_INTERFACE_ID 18
145 #define DH6OPT_RECONF_MSG 19
146 #define DH6OPT_RECONF_ACCEPT 20
147 #define DH6OPT_SIP_SERVER_D 21
148 #define DH6OPT_SIP_SERVER_A 22
149 #define DH6OPT_DNS 23
150 #define DH6OPT_DNSNAME 24
151 #define DH6OPT_IA_PD 25
152 #define DH6OPT_IA_PD_PREFIX 26
153 #define DH6OPT_NIS_SERVERS 27
154 #define DH6OPT_NISP_SERVERS 28
155 #define DH6OPT_NIS_NAME 29
156 #define DH6OPT_NISP_NAME 30
157 #define DH6OPT_NTP_SERVERS 31
158 #define DH6OPT_LIFETIME 32
159 #define DH6OPT_BCMCS_SERVER_D 33
160 #define DH6OPT_BCMCS_SERVER_A 34
161 #define DH6OPT_GEOCONF_CIVIC 36
162 #define DH6OPT_REMOTE_ID 37
163 #define DH6OPT_SUBSCRIBER_ID 38
164 #define DH6OPT_CLIENT_FQDN 39
165
166 struct dhcp6opt {
167 u_int16_t dh6opt_type;
168 u_int16_t dh6opt_len;
169 /* type-dependent data follows */
170 };
171
172 struct dhcp6_ia {
173 u_int16_t dh6opt_ia_type;
174 u_int16_t dh6opt_ia_len;
175 u_int32_t dh6opt_ia_iaid;
176 u_int32_t dh6opt_ia_t1;
177 u_int32_t dh6opt_ia_t2;
178 };
179
180 struct dhcp6_ia_addr {
181 u_int16_t dh6opt_ia_addr_type;
182 u_int16_t dh6opt_ia_addr_len;
183 struct in6_addr dh6opt_ia_addr_addr;
184 u_int32_t dh6opt_ia_addr_pltime;
185 u_int32_t dh6opt_ia_addr_vltime;
186 } __attribute__ ((__packed__));
187
188 struct dhcp6_ia_prefix {
189 u_int16_t dh6opt_ia_prefix_type;
190 u_int16_t dh6opt_ia_prefix_len;
191 u_int32_t dh6opt_ia_prefix_pltime;
192 u_int32_t dh6opt_ia_prefix_vltime;
193 u_int8_t dh6opt_ia_prefix_plen;
194 struct in6_addr dh6opt_ia_prefix_addr;
195 } __attribute__ ((__packed__));
196
197 struct dhcp6_auth {
198 u_int16_t dh6opt_auth_type;
199 u_int16_t dh6opt_auth_len;
200 u_int8_t dh6opt_auth_proto;
201 u_int8_t dh6opt_auth_alg;
202 u_int8_t dh6opt_auth_rdm;
203 u_int8_t dh6opt_auth_rdinfo[8];
204 /* authentication information follows */
205 } __attribute__ ((__packed__));
206
207 static const char *
208 dhcp6opt_name(int type)
209 {
210 static char genstr[sizeof("opt_65535") + 1]; /* XXX thread unsafe */
211
212 if (type > 65535)
213 return "INVALID option";
214
215 switch(type) {
216 case DH6OPT_CLIENTID:
217 return "client ID";
218 case DH6OPT_SERVERID:
219 return "server ID";
220 case DH6OPT_IA_NA:
221 return "IA_NA";
222 case DH6OPT_IA_TA:
223 return "IA_TA";
224 case DH6OPT_IA_ADDR:
225 return "IA_ADDR";
226 case DH6OPT_ORO:
227 return "option request";
228 case DH6OPT_PREFERENCE:
229 return "preference";
230 case DH6OPT_ELAPSED_TIME:
231 return "elapsed time";
232 case DH6OPT_RELAY_MSG:
233 return "relay message";
234 case DH6OPT_AUTH:
235 return "authentication";
236 case DH6OPT_UNICAST:
237 return "server unicast";
238 case DH6OPT_STATUS_CODE:
239 return "status code";
240 case DH6OPT_RAPID_COMMIT:
241 return "rapid commit";
242 case DH6OPT_USER_CLASS:
243 return "user class";
244 case DH6OPT_VENDOR_CLASS:
245 return "vendor class";
246 case DH6OPT_VENDOR_OPTS:
247 return "vendor-specific info";
248 case DH6OPT_INTERFACE_ID:
249 return "interface ID";
250 case DH6OPT_RECONF_MSG:
251 return "reconfigure message";
252 case DH6OPT_RECONF_ACCEPT:
253 return "reconfigure accept";
254 case DH6OPT_SIP_SERVER_D:
255 return "SIP servers domain";
256 case DH6OPT_SIP_SERVER_A:
257 return "SIP servers address";
258 case DH6OPT_DNS:
259 return "DNS";
260 case DH6OPT_DNSNAME:
261 return "DNS name";
262 case DH6OPT_IA_PD:
263 return "IA_PD";
264 case DH6OPT_IA_PD_PREFIX:
265 return "IA_PD prefix";
266 case DH6OPT_NTP_SERVERS:
267 return "NTP Server";
268 case DH6OPT_LIFETIME:
269 return "lifetime";
270 case DH6OPT_NIS_SERVERS:
271 return "NIS server";
272 case DH6OPT_NISP_SERVERS:
273 return "NIS+ server";
274 case DH6OPT_NIS_NAME:
275 return "NIS domain name";
276 case DH6OPT_NISP_NAME:
277 return "NIS+ domain name";
278 case DH6OPT_BCMCS_SERVER_D:
279 return "BCMCS domain name";
280 case DH6OPT_BCMCS_SERVER_A:
281 return "BCMCS server";
282 case DH6OPT_GEOCONF_CIVIC:
283 return "Geoconf Civic";
284 case DH6OPT_REMOTE_ID:
285 return "Remote ID";
286 case DH6OPT_SUBSCRIBER_ID:
287 return "Subscriber ID";
288 case DH6OPT_CLIENT_FQDN:
289 return "Client FQDN";
290 default:
291 snprintf(genstr, sizeof(genstr), "opt_%d", type);
292 return(genstr);
293 }
294 }
295
296 static const char *
297 dhcp6stcode(int code)
298 {
299 static char genstr[sizeof("code255") + 1]; /* XXX thread unsafe */
300
301 if (code > 255)
302 return "INVALID code";
303
304 switch(code) {
305 case DH6OPT_STCODE_SUCCESS:
306 return "success";
307 case DH6OPT_STCODE_UNSPECFAIL:
308 return "unspec failure";
309 case DH6OPT_STCODE_NOADDRAVAIL:
310 return "no addresses";
311 case DH6OPT_STCODE_NOBINDING:
312 return "no binding";
313 case DH6OPT_STCODE_NOTONLINK:
314 return "not on-link";
315 case DH6OPT_STCODE_USEMULTICAST:
316 return "use multicast";
317 case DH6OPT_STCODE_NOPREFIXAVAIL:
318 return "no prefixes";
319 default:
320 snprintf(genstr, sizeof(genstr), "code%d", code);
321 return(genstr);
322 }
323 }
324
325 static void
326 dhcp6opt_print(const u_char *cp, const u_char *ep)
327 {
328 struct dhcp6opt *dh6o;
329 u_char *tp;
330 size_t i;
331 u_int16_t opttype;
332 size_t optlen;
333 u_int16_t val16;
334 u_int32_t val32;
335 struct dhcp6_ia ia;
336 struct dhcp6_ia_prefix ia_prefix;
337 struct dhcp6_ia_addr ia_addr;
338 struct dhcp6_auth authopt;
339 u_int authinfolen, authrealmlen;
340
341 if (cp == ep)
342 return;
343 while (cp < ep) {
344 if (ep < cp + sizeof(*dh6o))
345 goto trunc;
346 dh6o = (struct dhcp6opt *)cp;
347 optlen = EXTRACT_16BITS(&dh6o->dh6opt_len);
348 if (ep < cp + sizeof(*dh6o) + optlen)
349 goto trunc;
350 opttype = EXTRACT_16BITS(&dh6o->dh6opt_type);
351 printf(" (%s", dhcp6opt_name(opttype));
352 switch (opttype) {
353 case DH6OPT_CLIENTID:
354 case DH6OPT_SERVERID:
355 if (optlen < 2) {
356 /*(*/
357 printf(" ?)");
358 break;
359 }
360 tp = (u_char *)(dh6o + 1);
361 switch (EXTRACT_16BITS(tp)) {
362 case 1:
363 if (optlen >= 2 + 6) {
364 printf(" hwaddr/time type %u time %u ",
365 EXTRACT_16BITS(&tp[2]),
366 EXTRACT_32BITS(&tp[4]));
367 for (i = 8; i < optlen; i++)
368 printf("%02x", tp[i]);
369 /*(*/
370 printf(")");
371 } else {
372 /*(*/
373 printf(" ?)");
374 }
375 break;
376 case 2:
377 if (optlen >= 2 + 8) {
378 printf(" vid ");
379 for (i = 2; i < 2 + 8; i++)
380 printf("%02x", tp[i]);
381 /*(*/
382 printf(")");
383 } else {
384 /*(*/
385 printf(" ?)");
386 }
387 break;
388 case 3:
389 if (optlen >= 2 + 2) {
390 printf(" hwaddr type %u ",
391 EXTRACT_16BITS(&tp[2]));
392 for (i = 4; i < optlen; i++)
393 printf("%02x", tp[i]);
394 /*(*/
395 printf(")");
396 } else {
397 /*(*/
398 printf(" ?)");
399 }
400 break;
401 default:
402 printf(" type %d)", EXTRACT_16BITS(tp));
403 break;
404 }
405 break;
406 case DH6OPT_IA_ADDR:
407 if (optlen < sizeof(ia_addr) - 4) {
408 printf(" ?)");
409 break;
410 }
411 memcpy(&ia_addr, (u_char *)dh6o, sizeof(ia_addr));
412 printf(" %s",
413 ip6addr_string(&ia_addr.dh6opt_ia_addr_addr));
414 ia_addr.dh6opt_ia_addr_pltime =
415 ntohl(ia_addr.dh6opt_ia_addr_pltime);
416 ia_addr.dh6opt_ia_addr_vltime =
417 ntohl(ia_addr.dh6opt_ia_addr_vltime);
418 printf(" pltime:%lu vltime:%lu",
419 (unsigned long)ia_addr.dh6opt_ia_addr_pltime,
420 (unsigned long)ia_addr.dh6opt_ia_addr_vltime);
421 if (optlen > sizeof(ia_addr) - 4) {
422 /* there are sub-options */
423 dhcp6opt_print((u_char *)dh6o +
424 sizeof(ia_addr),
425 (u_char *)(dh6o + 1) + optlen);
426 }
427 printf(")");
428 break;
429 case DH6OPT_ORO:
430 if (optlen % 2) {
431 printf(" ?)");
432 break;
433 }
434 tp = (u_char *)(dh6o + 1);
435 for (i = 0; i < optlen; i += 2) {
436 u_int16_t opt;
437
438 memcpy(&opt, &tp[i], sizeof(opt));
439 printf(" %s", dhcp6opt_name(ntohs(opt)));
440 }
441 printf(")");
442 break;
443 case DH6OPT_PREFERENCE:
444 if (optlen != 1) {
445 printf(" ?)");
446 break;
447 }
448 printf(" %d)", *((u_char *)(dh6o + 1) + 1));
449 break;
450 case DH6OPT_ELAPSED_TIME:
451 if (optlen != 2) {
452 printf(" ?)");
453 break;
454 }
455 memcpy(&val16, dh6o + 1, sizeof(val16));
456 val16 = ntohs(val16);
457 printf(" %d)", (int)val16);
458 break;
459 case DH6OPT_RELAY_MSG:
460 printf(" (");
461 dhcp6_print((const u_char *)(dh6o + 1), optlen);
462 printf(")");
463 break;
464 case DH6OPT_AUTH:
465 if (optlen < sizeof(authopt) - sizeof(*dh6o)) {
466 printf(" ?)");
467 break;
468 }
469 memcpy(&authopt, dh6o, sizeof(authopt));
470 switch (authopt.dh6opt_auth_proto) {
471 case DH6OPT_AUTHPROTO_DELAYED:
472 printf(" proto: delayed");
473 break;
474 case DH6OPT_AUTHPROTO_RECONFIG:
475 printf(" proto: reconfigure");
476 break;
477 default:
478 printf(" proto: %d",
479 authopt.dh6opt_auth_proto);
480 break;
481 }
482 switch (authopt.dh6opt_auth_alg) {
483 case DH6OPT_AUTHALG_HMACMD5:
484 /* XXX: may depend on the protocol */
485 printf(", alg: HMAC-MD5");
486 break;
487 default:
488 printf(", alg: %d", authopt.dh6opt_auth_alg);
489 break;
490 }
491 switch (authopt.dh6opt_auth_rdm) {
492 case DH6OPT_AUTHRDM_MONOCOUNTER:
493 printf(", RDM: mono");
494 break;
495 default:
496 printf(", RDM: %d", authopt.dh6opt_auth_rdm);
497 break;
498 }
499 tp = (u_char *)&authopt.dh6opt_auth_rdinfo;
500 printf(", RD:");
501 for (i = 0; i < 4; i++, tp += sizeof(val16))
502 printf(" %04x", EXTRACT_16BITS(tp));
503
504 /* protocol dependent part */
505 tp = (u_char *)dh6o + sizeof(authopt);
506 authinfolen =
507 optlen + sizeof(*dh6o) - sizeof(authopt);
508 switch (authopt.dh6opt_auth_proto) {
509 case DH6OPT_AUTHPROTO_DELAYED:
510 if (authinfolen == 0)
511 break;
512 if (authinfolen < 20) {
513 printf(" ??");
514 break;
515 }
516 authrealmlen = authinfolen - 20;
517 if (authrealmlen > 0) {
518 printf(", realm: ");
519 }
520 for (i = 0; i < authrealmlen; i++, tp++)
521 printf("%02x", *tp);
522 printf(", key ID: %08x", EXTRACT_32BITS(tp));
523 tp += 4;
524 printf(", HMAC-MD5:");
525 for (i = 0; i < 4; i++, tp+= 4)
526 printf(" %08x", EXTRACT_32BITS(tp));
527 break;
528 case DH6OPT_AUTHPROTO_RECONFIG:
529 if (authinfolen != 17) {
530 printf(" ??");
531 break;
532 }
533 switch (*tp++) {
534 case DH6OPT_AUTHRECONFIG_KEY:
535 printf(" reconfig-key");
536 break;
537 case DH6OPT_AUTHRECONFIG_HMACMD5:
538 printf(" type: HMAC-MD5");
539 break;
540 default:
541 printf(" type: ??");
542 break;
543 }
544 printf(" value:");
545 for (i = 0; i < 4; i++, tp+= 4)
546 printf(" %08x", EXTRACT_32BITS(tp));
547 break;
548 default:
549 printf(" ??");
550 break;
551 }
552
553 printf(")");
554 break;
555 case DH6OPT_RAPID_COMMIT: /* nothing todo */
556 printf(")");
557 break;
558 case DH6OPT_INTERFACE_ID:
559 /*
560 * Since we cannot predict the encoding, print hex dump
561 * at most 10 characters.
562 */
563 for (i = 0; i < optlen && i < 10; i++)
564 printf("%02x", ((u_char *)(dh6o + 1))[i]);
565 break;
566 case DH6OPT_RECONF_MSG:
567 tp = (u_char *)(dh6o + 1);
568 switch (*tp) {
569 case DH6_RENEW:
570 printf(" for renew)");
571 break;
572 case DH6_INFORM_REQ:
573 printf(" for inf-req)");
574 break;
575 default:
576 printf(" for ?\?\?(%02x))", *tp);
577 break;
578 }
579 break;
580 case DH6OPT_RECONF_ACCEPT: /* nothing todo */
581 printf(")");
582 break;
583 case DH6OPT_SIP_SERVER_A:
584 case DH6OPT_DNS:
585 case DH6OPT_NTP_SERVERS:
586 case DH6OPT_NIS_SERVERS:
587 case DH6OPT_NISP_SERVERS:
588 case DH6OPT_BCMCS_SERVER_A:
589 if (optlen % 16) {
590 printf(" ?)");
591 break;
592 }
593 tp = (u_char *)(dh6o + 1);
594 for (i = 0; i < optlen; i += 16)
595 printf(" %s", ip6addr_string(&tp[i]));
596 printf(")");
597 break;
598 case DH6OPT_STATUS_CODE:
599 if (optlen < 2) {
600 printf(" ?)");
601 break;
602 }
603 memcpy(&val16, (u_char *)(dh6o + 1), sizeof(val16));
604 val16 = ntohs(val16);
605 printf(" %s)", dhcp6stcode(val16));
606 break;
607 case DH6OPT_IA_NA:
608 case DH6OPT_IA_PD:
609 if (optlen < sizeof(ia) - 4) {
610 printf(" ?)");
611 break;
612 }
613 memcpy(&ia, (u_char *)dh6o, sizeof(ia));
614 ia.dh6opt_ia_iaid = ntohl(ia.dh6opt_ia_iaid);
615 ia.dh6opt_ia_t1 = ntohl(ia.dh6opt_ia_t1);
616 ia.dh6opt_ia_t2 = ntohl(ia.dh6opt_ia_t2);
617 printf(" IAID:%lu T1:%lu T2:%lu",
618 (unsigned long)ia.dh6opt_ia_iaid,
619 (unsigned long)ia.dh6opt_ia_t1,
620 (unsigned long)ia.dh6opt_ia_t2);
621 if (optlen > sizeof(ia) - 4) {
622 /* there are sub-options */
623 dhcp6opt_print((u_char *)dh6o + sizeof(ia),
624 (u_char *)(dh6o + 1) + optlen);
625 }
626 printf(")");
627 break;
628 case DH6OPT_IA_PD_PREFIX:
629 if (optlen < sizeof(ia_prefix) - 4) {
630 printf(" ?)");
631 break;
632 }
633 memcpy(&ia_prefix, (u_char *)dh6o, sizeof(ia_prefix));
634 printf(" %s/%d",
635 ip6addr_string(&ia_prefix.dh6opt_ia_prefix_addr),
636 ia_prefix.dh6opt_ia_prefix_plen);
637 ia_prefix.dh6opt_ia_prefix_pltime =
638 ntohl(ia_prefix.dh6opt_ia_prefix_pltime);
639 ia_prefix.dh6opt_ia_prefix_vltime =
640 ntohl(ia_prefix.dh6opt_ia_prefix_vltime);
641 printf(" pltime:%lu vltime:%lu",
642 (unsigned long)ia_prefix.dh6opt_ia_prefix_pltime,
643 (unsigned long)ia_prefix.dh6opt_ia_prefix_vltime);
644 if (optlen > sizeof(ia_prefix) - 4) {
645 /* there are sub-options */
646 dhcp6opt_print((u_char *)dh6o +
647 sizeof(ia_prefix),
648 (u_char *)(dh6o + 1) + optlen);
649 }
650 printf(")");
651 break;
652 case DH6OPT_LIFETIME:
653 if (optlen != 4) {
654 printf(" ?)");
655 break;
656 }
657 memcpy(&val32, dh6o + 1, sizeof(val32));
658 val32 = ntohl(val32);
659 printf(" %d)", (int)val32);
660 break;
661 default:
662 printf(")");
663 break;
664 }
665
666 cp += sizeof(*dh6o) + optlen;
667 }
668 return;
669
670 trunc:
671 printf("[|dhcp6ext]");
672 }
673
674 /*
675 * Print dhcp6 packets
676 */
677 void
678 dhcp6_print(const u_char *cp, u_int length)
679 {
680 struct dhcp6 *dh6;
681 struct dhcp6_relay *dh6relay;
682 const u_char *ep;
683 u_char *extp;
684 const char *name;
685
686 printf("dhcp6");
687
688 ep = (u_char *)snapend;
689 if (cp + length < ep)
690 ep = cp + length;
691
692 dh6 = (struct dhcp6 *)cp;
693 dh6relay = (struct dhcp6_relay *)cp;
694 TCHECK(dh6->dh6_xid);
695 switch (dh6->dh6_msgtype) {
696 case DH6_SOLICIT:
697 name = "solicit";
698 break;
699 case DH6_ADVERTISE:
700 name = "advertise";
701 break;
702 case DH6_REQUEST:
703 name = "request";
704 break;
705 case DH6_CONFIRM:
706 name = "confirm";
707 break;
708 case DH6_RENEW:
709 name = "renew";
710 break;
711 case DH6_REBIND:
712 name = "rebind";
713 break;
714 case DH6_REPLY:
715 name = "reply";
716 break;
717 case DH6_RELEASE:
718 name = "release";
719 break;
720 case DH6_DECLINE:
721 name = "decline";
722 break;
723 case DH6_RECONFIGURE:
724 name = "reconfigure";
725 break;
726 case DH6_INFORM_REQ:
727 name= "inf-req";
728 break;
729 case DH6_RELAY_FORW:
730 name= "relay-fwd";
731 break;
732 case DH6_RELAY_REPLY:
733 name= "relay-reply";
734 break;
735 default:
736 name = NULL;
737 break;
738 }
739
740 if (!vflag) {
741 if (name)
742 printf(" %s", name);
743 else if (dh6->dh6_msgtype != DH6_RELAY_FORW &&
744 dh6->dh6_msgtype != DH6_RELAY_REPLY) {
745 printf(" msgtype-%u", dh6->dh6_msgtype);
746 }
747 return;
748 }
749
750 /* XXX relay agent messages have to be handled differently */
751
752 if (name)
753 printf(" %s (", name); /*)*/
754 else
755 printf(" msgtype-%u (", dh6->dh6_msgtype); /*)*/
756 if (dh6->dh6_msgtype != DH6_RELAY_FORW &&
757 dh6->dh6_msgtype != DH6_RELAY_REPLY) {
758 printf("xid=%x", EXTRACT_32BITS(&dh6->dh6_xid) & DH6_XIDMASK);
759 extp = (u_char *)(dh6 + 1);
760 dhcp6opt_print(extp, ep);
761 } else { /* relay messages */
762 struct in6_addr addr6;
763
764 TCHECK(dh6relay->dh6relay_peeraddr);
765
766 memcpy(&addr6, dh6relay->dh6relay_linkaddr, sizeof (addr6));
767 printf("linkaddr=%s", ip6addr_string(&addr6));
768
769 memcpy(&addr6, dh6relay->dh6relay_peeraddr, sizeof (addr6));
770 printf(" peeraddr=%s", ip6addr_string(&addr6));
771
772 dhcp6opt_print((u_char *)(dh6relay + 1), ep);
773 }
774 /*(*/
775 printf(")");
776 return;
777
778 trunc:
779 printf("[|dhcp6]");
780 }
NetBSD on the FriendlyARM MINI2440