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time: Use clock_gettime
[dragonfly.git] / contrib / tcpdump / print-icmp6.c
blob176c15c5a336099051fbf17bd32db0d18830ad7f
1 /*
2 * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 */
21
22 #ifndef lint
23 static const char rcsid[] _U_ =
24 "@(#) $Header: /tcpdump/master/tcpdump/print-icmp6.c,v 1.86 2008-02-05 19:36:13 guy Exp $";
25 #endif
26
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #ifdef INET6
32
33 #include <tcpdump-stdinc.h>
34
35 #include <stdio.h>
36 #include <string.h>
37
38 #include "interface.h"
39 #include "addrtoname.h"
40 #include "extract.h"
41
42 #include "ip6.h"
43 #include "icmp6.h"
44 #include "ipproto.h"
45
46 #include "udp.h"
47 #include "ah.h"
48
49 static const char *get_rtpref(u_int);
50 static const char *get_lifetime(u_int32_t);
51 static void print_lladdr(const u_char *, size_t);
52 static void icmp6_opt_print(const u_char *, int);
53 static void mld6_print(const u_char *);
54 static void mldv2_report_print(const u_char *, u_int);
55 static void mldv2_query_print(const u_char *, u_int);
56 static struct udphdr *get_upperlayer(u_char *, u_int *);
57 static void dnsname_print(const u_char *, const u_char *);
58 static void icmp6_nodeinfo_print(u_int, const u_char *, const u_char *);
59 static void icmp6_rrenum_print(const u_char *, const u_char *);
60
61 #ifndef abs
62 #define abs(a) ((0 < (a)) ? (a) : -(a))
63 #endif
64
65 /* inline the various RPL definitions */
66 #define ND_RPL_MESSAGE 0x9B
67
68 static struct tok icmp6_type_values[] = {
69 { ICMP6_DST_UNREACH, "destination unreachable"},
70 { ICMP6_PACKET_TOO_BIG, "packet too big"},
71 { ICMP6_TIME_EXCEEDED, "time exceeded in-transit"},
72 { ICMP6_PARAM_PROB, "parameter problem"},
73 { ICMP6_ECHO_REQUEST, "echo request"},
74 { ICMP6_ECHO_REPLY, "echo reply"},
75 { MLD6_LISTENER_QUERY, "multicast listener query"},
76 { MLD6_LISTENER_REPORT, "multicast listener report"},
77 { MLD6_LISTENER_DONE, "multicast listener done"},
78 { ND_ROUTER_SOLICIT, "router solicitation"},
79 { ND_ROUTER_ADVERT, "router advertisement"},
80 { ND_NEIGHBOR_SOLICIT, "neighbor solicitation"},
81 { ND_NEIGHBOR_ADVERT, "neighbor advertisement"},
82 { ND_REDIRECT, "redirect"},
83 { ICMP6_ROUTER_RENUMBERING, "router renumbering"},
84 { IND_SOLICIT, "inverse neighbor solicitation"},
85 { IND_ADVERT, "inverse neighbor advertisement"},
86 { MLDV2_LISTENER_REPORT, "multicast listener report v2"},
87 { ICMP6_HADISCOV_REQUEST, "ha discovery request"},
88 { ICMP6_HADISCOV_REPLY, "ha discovery reply"},
89 { ICMP6_MOBILEPREFIX_SOLICIT, "mobile router solicitation"},
90 { ICMP6_MOBILEPREFIX_ADVERT, "mobile router advertisement"},
91 { ICMP6_WRUREQUEST, "who-are-you request"},
92 { ICMP6_WRUREPLY, "who-are-you reply"},
93 { ICMP6_NI_QUERY, "node information query"},
94 { ICMP6_NI_REPLY, "node information reply"},
95 { MLD6_MTRACE, "mtrace message"},
96 { MLD6_MTRACE_RESP, "mtrace response"},
97 { ND_RPL_MESSAGE, "RPL"},
98 { 0, NULL }
99 };
100
101 static struct tok icmp6_dst_unreach_code_values[] = {
102 { ICMP6_DST_UNREACH_NOROUTE, "unreachable route" },
103 { ICMP6_DST_UNREACH_ADMIN, " unreachable prohibited"},
104 { ICMP6_DST_UNREACH_BEYONDSCOPE, "beyond scope"},
105 { ICMP6_DST_UNREACH_ADDR, "unreachable address"},
106 { ICMP6_DST_UNREACH_NOPORT, "unreachable port"},
107 { 0, NULL }
108 };
109
110 static struct tok icmp6_opt_pi_flag_values[] = {
111 { ND_OPT_PI_FLAG_ONLINK, "onlink" },
112 { ND_OPT_PI_FLAG_AUTO, "auto" },
113 { ND_OPT_PI_FLAG_ROUTER, "router" },
114 { 0, NULL }
115 };
116
117 static struct tok icmp6_opt_ra_flag_values[] = {
118 { ND_RA_FLAG_MANAGED, "managed" },
119 { ND_RA_FLAG_OTHER, "other stateful"},
120 { ND_RA_FLAG_HOME_AGENT, "home agent"},
121 { 0, NULL }
122 };
123
124 static struct tok icmp6_nd_na_flag_values[] = {
125 { ND_NA_FLAG_ROUTER, "router" },
126 { ND_NA_FLAG_SOLICITED, "solicited" },
127 { ND_NA_FLAG_OVERRIDE, "override" },
128 { 0, NULL }
129 };
130
131
132 static struct tok icmp6_opt_values[] = {
133 { ND_OPT_SOURCE_LINKADDR, "source link-address"},
134 { ND_OPT_TARGET_LINKADDR, "destination link-address"},
135 { ND_OPT_PREFIX_INFORMATION, "prefix info"},
136 { ND_OPT_REDIRECTED_HEADER, "redirected header"},
137 { ND_OPT_MTU, "mtu"},
138 { ND_OPT_RDNSS, "rdnss"},
139 { ND_OPT_ADVINTERVAL, "advertisement interval"},
140 { ND_OPT_HOMEAGENT_INFO, "homeagent information"},
141 { ND_OPT_ROUTE_INFO, "route info"},
142 { 0, NULL }
143 };
144
145 /* mldv2 report types */
146 static struct tok mldv2report2str[] = {
147 { 1, "is_in" },
148 { 2, "is_ex" },
149 { 3, "to_in" },
150 { 4, "to_ex" },
151 { 5, "allow" },
152 { 6, "block" },
153 { 0, NULL }
154 };
155
156 static const char *
157 get_rtpref(u_int v)
158 {
159 static const char *rtpref_str[] = {
160 "medium", /* 00 */
161 "high", /* 01 */
162 "rsv", /* 10 */
163 "low" /* 11 */
164 };
165
166 return rtpref_str[((v & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff];
167 }
168
169 static const char *
170 get_lifetime(u_int32_t v)
171 {
172 static char buf[20];
173
174 if (v == (u_int32_t)~0UL)
175 return "infinity";
176 else {
177 snprintf(buf, sizeof(buf), "%u", v);
178 return buf;
179 }
180 }
181
182 static void
183 print_lladdr(const u_int8_t *p, size_t l)
184 {
185 const u_int8_t *ep, *q;
186
187 q = p;
188 ep = p + l;
189 while (l > 0 && q < ep) {
190 if (q > p)
191 printf(":");
192 printf("%02x", *q++);
193 l--;
194 }
195 }
196
197 static int icmp6_cksum(const struct ip6_hdr *ip6, const struct icmp6_hdr *icp,
198 u_int len)
199 {
200 return (nextproto6_cksum(ip6, (const u_int8_t *)(void *)icp, len,
201 IPPROTO_ICMPV6));
202 }
203
204 enum ND_RPL_CODE {
205 ND_RPL_DIS =0x00,
206 ND_RPL_DIO =0x01,
207 ND_RPL_DAO =0x02,
208 ND_RPL_DAO_ACK=0x03,
209 ND_RPL_SDIS =0x80,
210 ND_RPL_SDIO =0x81,
211 ND_RPL_SDAO =0x82,
212 ND_RPL_SDAO_ACK=0x83,
213 ND_RPL_SCC =0x8A,
214 };
215
216 enum ND_RPL_DIO_FLAGS {
217 ND_RPL_DIO_GROUNDED = 0x80,
218 ND_RPL_DIO_DATRIG = 0x40,
219 ND_RPL_DIO_DASUPPORT= 0x20,
220 ND_RPL_DIO_RES4 = 0x10,
221 ND_RPL_DIO_RES3 = 0x08,
222 ND_RPL_DIO_PRF_MASK = 0x07, /* 3-bit preference */
223 };
224
225 struct nd_rpl_dio {
226 u_int8_t rpl_flags;
227 u_int8_t rpl_seq;
228 u_int8_t rpl_instanceid;
229 u_int8_t rpl_dagrank;
230 u_int8_t rpl_dagid[16];
231 };
232
233 static void
234 rpl_print(netdissect_options *ndo,
235 const struct icmp6_hdr *hdr,
236 const u_char *bp, u_int length _U_)
237 {
238 struct nd_rpl_dio *dio = (struct nd_rpl_dio *)bp;
239 int secured = hdr->icmp6_code & 0x80;
240 int basecode= hdr->icmp6_code & 0x7f;
241
242 ND_TCHECK(dio->rpl_dagid);
243
244 if(secured) {
245 ND_PRINT((ndo, ", (SEC)"));
246 } else {
247 ND_PRINT((ndo, ", (CLR)"));
248 }
249
250 switch(basecode) {
251 case ND_RPL_DIS:
252 ND_PRINT((ndo, "DODAG Information Solicitation"));
253 if(ndo->ndo_vflag) {
254 }
255 break;
256 case ND_RPL_DIO:
257 ND_PRINT((ndo, "DODAG Information Object"));
258 if(ndo->ndo_vflag) {
259 char dagid[65];
260 char *d = dagid;
261 int i;
262 for(i=0;i<16;i++) {
263 if(isprint(dio->rpl_dagid[i])) {
264 *d++ = dio->rpl_dagid[i];
265 } else {
266 int cnt=snprintf(d,4,"0x%02x",
267 dio->rpl_dagid[i]);
268 d += cnt;
269 }
270 }
271 *d++ = '\0';
272 ND_PRINT((ndo, " [seq:%u,instance:%u,rank:%u,dagid:%s]",
273 dio->rpl_seq,
274 dio->rpl_instanceid,
275 dio->rpl_dagrank,
276 dagid));
277 }
278 break;
279 case ND_RPL_DAO:
280 ND_PRINT((ndo, "Destination Advertisement Object"));
281 if(ndo->ndo_vflag) {
282 }
283 break;
284 case ND_RPL_DAO_ACK:
285 ND_PRINT((ndo, "Destination Advertisement Object Ack"));
286 if(ndo->ndo_vflag) {
287 }
288 break;
289 default:
290 ND_PRINT((ndo, "RPL message, unknown code %u",hdr->icmp6_code));
291 break;
292 }
293 return;
294 trunc:
295 ND_PRINT((ndo," [|truncated]"));
296 return;
297
298 }
299
300
301 void
302 icmp6_print(netdissect_options *ndo,
303 const u_char *bp, u_int length, const u_char *bp2, int fragmented)
304 {
305 const struct icmp6_hdr *dp;
306 const struct ip6_hdr *ip;
307 const struct ip6_hdr *oip;
308 const struct udphdr *ouh;
309 int dport;
310 const u_char *ep;
311 u_int prot;
312
313 dp = (struct icmp6_hdr *)bp;
314 ip = (struct ip6_hdr *)bp2;
315 oip = (struct ip6_hdr *)(dp + 1);
316 /* 'ep' points to the end of available data. */
317 ep = snapend;
318
319 TCHECK(dp->icmp6_cksum);
320
321 if (vflag && !fragmented) {
322 u_int16_t sum, udp_sum;
323
324 if (TTEST2(bp[0], length)) {
325 udp_sum = EXTRACT_16BITS(&dp->icmp6_cksum);
326 sum = icmp6_cksum(ip, dp, length);
327 if (sum != 0)
328 (void)printf("[bad icmp6 cksum 0x%04x -> 0x%04x!] ",
329 udp_sum,
330 in_cksum_shouldbe(udp_sum, sum));
331 else
332 (void)printf("[icmp6 sum ok] ");
333 }
334 }
335
336 printf("ICMP6, %s", tok2str(icmp6_type_values,"unknown icmp6 type (%u)",dp->icmp6_type));
337
338 /* display cosmetics: print the packet length for printer that use the vflag now */
339 if (vflag && (dp->icmp6_type == ND_ROUTER_SOLICIT ||
340 dp->icmp6_type == ND_ROUTER_ADVERT ||
341 dp->icmp6_type == ND_NEIGHBOR_ADVERT ||
342 dp->icmp6_type == ND_NEIGHBOR_SOLICIT ||
343 dp->icmp6_type == ND_REDIRECT ||
344 dp->icmp6_type == ICMP6_HADISCOV_REPLY ||
345 dp->icmp6_type == ICMP6_MOBILEPREFIX_ADVERT ))
346 printf(", length %u", length);
347
348 switch (dp->icmp6_type) {
349 case ICMP6_DST_UNREACH:
350 TCHECK(oip->ip6_dst);
351 printf(", %s", tok2str(icmp6_dst_unreach_code_values,"unknown unreach code (%u)",dp->icmp6_code));
352 switch (dp->icmp6_code) {
353
354 case ICMP6_DST_UNREACH_NOROUTE: /* fall through */
355 case ICMP6_DST_UNREACH_ADMIN:
356 case ICMP6_DST_UNREACH_ADDR:
357 printf(" %s",ip6addr_string(&oip->ip6_dst));
358 break;
359 case ICMP6_DST_UNREACH_BEYONDSCOPE:
360 printf(" %s, source address %s",
361 ip6addr_string(&oip->ip6_dst),
362 ip6addr_string(&oip->ip6_src));
363 break;
364 case ICMP6_DST_UNREACH_NOPORT:
365 if ((ouh = get_upperlayer((u_char *)oip, &prot))
366 == NULL)
367 goto trunc;
368
369 dport = EXTRACT_16BITS(&ouh->uh_dport);
370 switch (prot) {
371 case IPPROTO_TCP:
372 printf(", %s tcp port %s",
373 ip6addr_string(&oip->ip6_dst),
374 tcpport_string(dport));
375 break;
376 case IPPROTO_UDP:
377 printf(", %s udp port %s",
378 ip6addr_string(&oip->ip6_dst),
379 udpport_string(dport));
380 break;
381 default:
382 printf(", %s protocol %d port %d unreachable",
383 ip6addr_string(&oip->ip6_dst),
384 oip->ip6_nxt, dport);
385 break;
386 }
387 break;
388 default:
389 if (vflag <= 1) {
390 print_unknown_data(bp,"\n\t",length);
391 return;
392 }
393 break;
394 }
395 break;
396 case ICMP6_PACKET_TOO_BIG:
397 TCHECK(dp->icmp6_mtu);
398 printf(", mtu %u", EXTRACT_32BITS(&dp->icmp6_mtu));
399 break;
400 case ICMP6_TIME_EXCEEDED:
401 TCHECK(oip->ip6_dst);
402 switch (dp->icmp6_code) {
403 case ICMP6_TIME_EXCEED_TRANSIT:
404 printf(" for %s",
405 ip6addr_string(&oip->ip6_dst));
406 break;
407 case ICMP6_TIME_EXCEED_REASSEMBLY:
408 printf(" (reassembly)");
409 break;
410 default:
411 printf(", unknown code (%u)", dp->icmp6_code);
412 break;
413 }
414 break;
415 case ICMP6_PARAM_PROB:
416 TCHECK(oip->ip6_dst);
417 switch (dp->icmp6_code) {
418 case ICMP6_PARAMPROB_HEADER:
419 printf(", errorneous - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr));
420 break;
421 case ICMP6_PARAMPROB_NEXTHEADER:
422 printf(", next header - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr));
423 break;
424 case ICMP6_PARAMPROB_OPTION:
425 printf(", option - octet %u", EXTRACT_32BITS(&dp->icmp6_pptr));
426 break;
427 default:
428 printf(", code-#%d",
429 dp->icmp6_code);
430 break;
431 }
432 break;
433 case ICMP6_ECHO_REQUEST:
434 case ICMP6_ECHO_REPLY:
435 TCHECK(dp->icmp6_seq);
436 printf(", seq %u", EXTRACT_16BITS(&dp->icmp6_seq));
437 break;
438 case ICMP6_MEMBERSHIP_QUERY:
439 if (length == MLD_MINLEN) {
440 mld6_print((const u_char *)dp);
441 } else if (length >= MLDV2_MINLEN) {
442 printf("v2 ");
443 mldv2_query_print((const u_char *)dp, length);
444 } else {
445 printf(" unknown-version (len %u) ", length);
446 }
447 break;
448 case ICMP6_MEMBERSHIP_REPORT:
449 mld6_print((const u_char *)dp);
450 break;
451 case ICMP6_MEMBERSHIP_REDUCTION:
452 mld6_print((const u_char *)dp);
453 break;
454 case ND_ROUTER_SOLICIT:
455 #define RTSOLLEN 8
456 if (vflag) {
457 icmp6_opt_print((const u_char *)dp + RTSOLLEN,
458 length - RTSOLLEN);
459 }
460 break;
461 case ND_ROUTER_ADVERT:
462 #define RTADVLEN 16
463 if (vflag) {
464 struct nd_router_advert *p;
465
466 p = (struct nd_router_advert *)dp;
467 TCHECK(p->nd_ra_retransmit);
468 printf("\n\thop limit %u, Flags [%s]" \
469 ", pref %s, router lifetime %us, reachable time %us, retrans time %us",
470 (u_int)p->nd_ra_curhoplimit,
471 bittok2str(icmp6_opt_ra_flag_values,"none",(p->nd_ra_flags_reserved)),
472 get_rtpref(p->nd_ra_flags_reserved),
473 EXTRACT_16BITS(&p->nd_ra_router_lifetime),
474 EXTRACT_32BITS(&p->nd_ra_reachable),
475 EXTRACT_32BITS(&p->nd_ra_retransmit));
476
477 icmp6_opt_print((const u_char *)dp + RTADVLEN,
478 length - RTADVLEN);
479 }
480 break;
481 case ND_NEIGHBOR_SOLICIT:
482 {
483 struct nd_neighbor_solicit *p;
484 p = (struct nd_neighbor_solicit *)dp;
485 TCHECK(p->nd_ns_target);
486 printf(", who has %s", ip6addr_string(&p->nd_ns_target));
487 if (vflag) {
488 #define NDSOLLEN 24
489 icmp6_opt_print((const u_char *)dp + NDSOLLEN,
490 length - NDSOLLEN);
491 }
492 }
493 break;
494 case ND_NEIGHBOR_ADVERT:
495 {
496 struct nd_neighbor_advert *p;
497
498 p = (struct nd_neighbor_advert *)dp;
499 TCHECK(p->nd_na_target);
500 printf(", tgt is %s",
501 ip6addr_string(&p->nd_na_target));
502 if (vflag) {
503 printf(", Flags [%s]",
504 bittok2str(icmp6_nd_na_flag_values,
505 "none",
506 EXTRACT_32BITS(&p->nd_na_flags_reserved)));
507 #define NDADVLEN 24
508 icmp6_opt_print((const u_char *)dp + NDADVLEN,
509 length - NDADVLEN);
510 #undef NDADVLEN
511 }
512 }
513 break;
514 case ND_REDIRECT:
515 #define RDR(i) ((struct nd_redirect *)(i))
516 TCHECK(RDR(dp)->nd_rd_dst);
517 printf(", %s", getname6((const u_char *)&RDR(dp)->nd_rd_dst));
518 TCHECK(RDR(dp)->nd_rd_target);
519 printf(" to %s",
520 getname6((const u_char*)&RDR(dp)->nd_rd_target));
521 #define REDIRECTLEN 40
522 if (vflag) {
523 icmp6_opt_print((const u_char *)dp + REDIRECTLEN,
524 length - REDIRECTLEN);
525 }
526 break;
527 #undef REDIRECTLEN
528 #undef RDR
529 case ICMP6_ROUTER_RENUMBERING:
530 icmp6_rrenum_print(bp, ep);
531 break;
532 case ICMP6_NI_QUERY:
533 case ICMP6_NI_REPLY:
534 icmp6_nodeinfo_print(length, bp, ep);
535 break;
536 case IND_SOLICIT:
537 case IND_ADVERT:
538 break;
539 case ICMP6_V2_MEMBERSHIP_REPORT:
540 mldv2_report_print((const u_char *) dp, length);
541 break;
542 case ICMP6_MOBILEPREFIX_SOLICIT: /* fall through */
543 case ICMP6_HADISCOV_REQUEST:
544 TCHECK(dp->icmp6_data16[0]);
545 printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0]));
546 break;
547 case ICMP6_HADISCOV_REPLY:
548 if (vflag) {
549 struct in6_addr *in6;
550 u_char *cp;
551
552 TCHECK(dp->icmp6_data16[0]);
553 printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0]));
554 cp = (u_char *)dp + length;
555 in6 = (struct in6_addr *)(dp + 1);
556 for (; (u_char *)in6 < cp; in6++) {
557 TCHECK(*in6);
558 printf(", %s", ip6addr_string(in6));
559 }
560 }
561 break;
562 case ICMP6_MOBILEPREFIX_ADVERT:
563 if (vflag) {
564 TCHECK(dp->icmp6_data16[0]);
565 printf(", id 0x%04x", EXTRACT_16BITS(&dp->icmp6_data16[0]));
566 if (dp->icmp6_data16[1] & 0xc0)
567 printf(" ");
568 if (dp->icmp6_data16[1] & 0x80)
569 printf("M");
570 if (dp->icmp6_data16[1] & 0x40)
571 printf("O");
572 #define MPADVLEN 8
573 icmp6_opt_print((const u_char *)dp + MPADVLEN,
574 length - MPADVLEN);
575 }
576 break;
577 case ND_RPL_MESSAGE:
578 rpl_print(ndo, dp, &dp->icmp6_data8[0], length);
579 break;
580 default:
581 printf(", length %u", length);
582 if (vflag <= 1)
583 print_unknown_data(bp,"\n\t", length);
584 return;
585 }
586 if (!vflag)
587 printf(", length %u", length);
588 return;
589 trunc:
590 fputs("[|icmp6]", stdout);
591 }
592
593 static struct udphdr *
594 get_upperlayer(u_char *bp, u_int *prot)
595 {
596 const u_char *ep;
597 struct ip6_hdr *ip6 = (struct ip6_hdr *)bp;
598 struct udphdr *uh;
599 struct ip6_hbh *hbh;
600 struct ip6_frag *fragh;
601 struct ah *ah;
602 u_int nh;
603 int hlen;
604
605 /* 'ep' points to the end of available data. */
606 ep = snapend;
607
608 if (!TTEST(ip6->ip6_nxt))
609 return NULL;
610
611 nh = ip6->ip6_nxt;
612 hlen = sizeof(struct ip6_hdr);
613
614 while (bp < ep) {
615 bp += hlen;
616
617 switch(nh) {
618 case IPPROTO_UDP:
619 case IPPROTO_TCP:
620 uh = (struct udphdr *)bp;
621 if (TTEST(uh->uh_dport)) {
622 *prot = nh;
623 return(uh);
624 }
625 else
626 return(NULL);
627 /* NOTREACHED */
628
629 case IPPROTO_HOPOPTS:
630 case IPPROTO_DSTOPTS:
631 case IPPROTO_ROUTING:
632 hbh = (struct ip6_hbh *)bp;
633 if (!TTEST(hbh->ip6h_len))
634 return(NULL);
635 nh = hbh->ip6h_nxt;
636 hlen = (hbh->ip6h_len + 1) << 3;
637 break;
638
639 case IPPROTO_FRAGMENT: /* this should be odd, but try anyway */
640 fragh = (struct ip6_frag *)bp;
641 if (!TTEST(fragh->ip6f_offlg))
642 return(NULL);
643 /* fragments with non-zero offset are meaningless */
644 if ((EXTRACT_16BITS(&fragh->ip6f_offlg) & IP6F_OFF_MASK) != 0)
645 return(NULL);
646 nh = fragh->ip6f_nxt;
647 hlen = sizeof(struct ip6_frag);
648 break;
649
650 case IPPROTO_AH:
651 ah = (struct ah *)bp;
652 if (!TTEST(ah->ah_len))
653 return(NULL);
654 nh = ah->ah_nxt;
655 hlen = (ah->ah_len + 2) << 2;
656 break;
657
658 default: /* unknown or undecodable header */
659 *prot = nh; /* meaningless, but set here anyway */
660 return(NULL);
661 }
662 }
663
664 return(NULL); /* should be notreached, though */
665 }
666
667 static void
668 icmp6_opt_print(const u_char *bp, int resid)
669 {
670 const struct nd_opt_hdr *op;
671 const struct nd_opt_hdr *opl; /* why there's no struct? */
672 const struct nd_opt_prefix_info *opp;
673 const struct icmp6_opts_redirect *opr;
674 const struct nd_opt_mtu *opm;
675 const struct nd_opt_rdnss *oprd;
676 const struct nd_opt_advinterval *opa;
677 const struct nd_opt_homeagent_info *oph;
678 const struct nd_opt_route_info *opri;
679 const u_char *cp, *ep;
680 struct in6_addr in6, *in6p;
681 size_t l;
682 u_int i;
683
684 #define ECHECK(var) if ((u_char *)&(var) > ep - sizeof(var)) return
685
686 cp = bp;
687 /* 'ep' points to the end of available data. */
688 ep = snapend;
689
690 while (cp < ep) {
691 op = (struct nd_opt_hdr *)cp;
692
693 ECHECK(op->nd_opt_len);
694 if (resid <= 0)
695 return;
696 if (op->nd_opt_len == 0)
697 goto trunc;
698 if (cp + (op->nd_opt_len << 3) > ep)
699 goto trunc;
700
701 printf("\n\t %s option (%u), length %u (%u): ",
702 tok2str(icmp6_opt_values, "unknown", op->nd_opt_type),
703 op->nd_opt_type,
704 op->nd_opt_len << 3,
705 op->nd_opt_len);
706
707 switch (op->nd_opt_type) {
708 case ND_OPT_SOURCE_LINKADDR:
709 opl = (struct nd_opt_hdr *)op;
710 l = (op->nd_opt_len << 3) - 2;
711 print_lladdr(cp + 2, l);
712 break;
713 case ND_OPT_TARGET_LINKADDR:
714 opl = (struct nd_opt_hdr *)op;
715 l = (op->nd_opt_len << 3) - 2;
716 print_lladdr(cp + 2, l);
717 break;
718 case ND_OPT_PREFIX_INFORMATION:
719 opp = (struct nd_opt_prefix_info *)op;
720 TCHECK(opp->nd_opt_pi_prefix);
721 printf("%s/%u%s, Flags [%s], valid time %ss",
722 ip6addr_string(&opp->nd_opt_pi_prefix),
723 opp->nd_opt_pi_prefix_len,
724 (op->nd_opt_len != 4) ? "badlen" : "",
725 bittok2str(icmp6_opt_pi_flag_values, "none", opp->nd_opt_pi_flags_reserved),
726 get_lifetime(EXTRACT_32BITS(&opp->nd_opt_pi_valid_time)));
727 printf(", pref. time %ss", get_lifetime(EXTRACT_32BITS(&opp->nd_opt_pi_preferred_time)));
728 break;
729 case ND_OPT_REDIRECTED_HEADER:
730 opr = (struct icmp6_opts_redirect *)op;
731 print_unknown_data(bp,"\n\t ",op->nd_opt_len<<3);
732 /* xxx */
733 break;
734 case ND_OPT_MTU:
735 opm = (struct nd_opt_mtu *)op;
736 TCHECK(opm->nd_opt_mtu_mtu);
737 printf(" %u%s",
738 EXTRACT_32BITS(&opm->nd_opt_mtu_mtu),
739 (op->nd_opt_len != 1) ? "bad option length" : "" );
740 break;
741 case ND_OPT_RDNSS:
742 oprd = (struct nd_opt_rdnss *)op;
743 l = (op->nd_opt_len - 1) / 2;
744 printf(" lifetime %us,",
745 EXTRACT_32BITS(&oprd->nd_opt_rdnss_lifetime));
746 for (i = 0; i < l; i++) {
747 TCHECK(oprd->nd_opt_rdnss_addr[i]);
748 printf(" addr: %s",
749 ip6addr_string(&oprd->nd_opt_rdnss_addr[i]));
750 }
751 break;
752 case ND_OPT_ADVINTERVAL:
753 opa = (struct nd_opt_advinterval *)op;
754 TCHECK(opa->nd_opt_adv_interval);
755 printf(" %ums", EXTRACT_32BITS(&opa->nd_opt_adv_interval));
756 break;
757 case ND_OPT_HOMEAGENT_INFO:
758 oph = (struct nd_opt_homeagent_info *)op;
759 TCHECK(oph->nd_opt_hai_lifetime);
760 printf(" preference %u, lifetime %u",
761 EXTRACT_16BITS(&oph->nd_opt_hai_preference),
762 EXTRACT_16BITS(&oph->nd_opt_hai_lifetime));
763 break;
764 case ND_OPT_ROUTE_INFO:
765 opri = (struct nd_opt_route_info *)op;
766 TCHECK(opri->nd_opt_rti_lifetime);
767 memset(&in6, 0, sizeof(in6));
768 in6p = (struct in6_addr *)(opri + 1);
769 switch (op->nd_opt_len) {
770 case 1:
771 break;
772 case 2:
773 TCHECK2(*in6p, 8);
774 memcpy(&in6, opri + 1, 8);
775 break;
776 case 3:
777 TCHECK(*in6p);
778 memcpy(&in6, opri + 1, sizeof(in6));
779 break;
780 default:
781 goto trunc;
782 }
783 printf(" %s/%u", ip6addr_string(&in6),
784 opri->nd_opt_rti_prefixlen);
785 printf(", pref=%s", get_rtpref(opri->nd_opt_rti_flags));
786 printf(", lifetime=%s",
787 get_lifetime(EXTRACT_32BITS(&opri->nd_opt_rti_lifetime)));
788 break;
789 default:
790 if (vflag <= 1) {
791 print_unknown_data(cp+2,"\n\t ", (op->nd_opt_len << 3) - 2); /* skip option header */
792 return;
793 }
794 break;
795 }
796 /* do we want to see an additional hexdump ? */
797 if (vflag> 1)
798 print_unknown_data(cp+2,"\n\t ", (op->nd_opt_len << 3) - 2); /* skip option header */
799
800 cp += op->nd_opt_len << 3;
801 resid -= op->nd_opt_len << 3;
802 }
803 return;
804
805 trunc:
806 fputs("[ndp opt]", stdout);
807 return;
808 #undef ECHECK
809 }
810
811 static void
812 mld6_print(const u_char *bp)
813 {
814 struct mld6_hdr *mp = (struct mld6_hdr *)bp;
815 const u_char *ep;
816
817 /* 'ep' points to the end of available data. */
818 ep = snapend;
819
820 if ((u_char *)mp + sizeof(*mp) > ep)
821 return;
822
823 printf("max resp delay: %d ", EXTRACT_16BITS(&mp->mld6_maxdelay));
824 printf("addr: %s", ip6addr_string(&mp->mld6_addr));
825 }
826
827 static void
828 mldv2_report_print(const u_char *bp, u_int len)
829 {
830 struct icmp6_hdr *icp = (struct icmp6_hdr *) bp;
831 u_int group, nsrcs, ngroups;
832 u_int i, j;
833
834 /* Minimum len is 8 */
835 if (len < 8) {
836 printf(" [invalid len %d]", len);
837 return;
838 }
839
840 TCHECK(icp->icmp6_data16[1]);
841 ngroups = EXTRACT_16BITS(&icp->icmp6_data16[1]);
842 printf(", %d group record(s)", ngroups);
843 if (vflag > 0) {
844 /* Print the group records */
845 group = 8;
846 for (i = 0; i < ngroups; i++) {
847 /* type(1) + auxlen(1) + numsrc(2) + grp(16) */
848 if (len < group + 20) {
849 printf(" [invalid number of groups]");
850 return;
851 }
852 TCHECK2(bp[group + 4], sizeof(struct in6_addr));
853 printf(" [gaddr %s", ip6addr_string(&bp[group + 4]));
854 printf(" %s", tok2str(mldv2report2str, " [v2-report-#%d]",
855 bp[group]));
856 nsrcs = (bp[group + 2] << 8) + bp[group + 3];
857 /* Check the number of sources and print them */
858 if (len < group + 20 + (nsrcs * sizeof(struct in6_addr))) {
859 printf(" [invalid number of sources %d]", nsrcs);
860 return;
861 }
862 if (vflag == 1)
863 printf(", %d source(s)", nsrcs);
864 else {
865 /* Print the sources */
866 (void)printf(" {");
867 for (j = 0; j < nsrcs; j++) {
868 TCHECK2(bp[group + 20 + j * sizeof(struct in6_addr)],
869 sizeof(struct in6_addr));
870 printf(" %s", ip6addr_string(&bp[group + 20 + j * sizeof(struct in6_addr)]));
871 }
872 (void)printf(" }");
873 }
874 /* Next group record */
875 group += 20 + nsrcs * sizeof(struct in6_addr);
876 printf("]");
877 }
878 }
879 return;
880 trunc:
881 (void)printf("[|icmp6]");
882 return;
883 }
884
885 static void
886 mldv2_query_print(const u_char *bp, u_int len)
887 {
888 struct icmp6_hdr *icp = (struct icmp6_hdr *) bp;
889 u_int mrc;
890 int mrt, qqi;
891 u_int nsrcs;
892 register u_int i;
893
894 /* Minimum len is 28 */
895 if (len < 28) {
896 printf(" [invalid len %d]", len);
897 return;
898 }
899 TCHECK(icp->icmp6_data16[0]);
900 mrc = EXTRACT_16BITS(&icp->icmp6_data16[0]);
901 if (mrc < 32768) {
902 mrt = mrc;
903 } else {
904 mrt = ((mrc & 0x0fff) | 0x1000) << (((mrc & 0x7000) >> 12) + 3);
905 }
906 if (vflag) {
907 (void)printf(" [max resp delay=%d]", mrt);
908 }
909 TCHECK2(bp[8], sizeof(struct in6_addr));
910 printf(" [gaddr %s", ip6addr_string(&bp[8]));
911
912 if (vflag) {
913 TCHECK(bp[25]);
914 if (bp[24] & 0x08) {
915 printf(" sflag");
916 }
917 if (bp[24] & 0x07) {
918 printf(" robustness=%d", bp[24] & 0x07);
919 }
920 if (bp[25] < 128) {
921 qqi = bp[25];
922 } else {
923 qqi = ((bp[25] & 0x0f) | 0x10) << (((bp[25] & 0x70) >> 4) + 3);
924 }
925 printf(" qqi=%d", qqi);
926 }
927
928 TCHECK2(bp[26], 2);
929 nsrcs = EXTRACT_16BITS(&bp[26]);
930 if (nsrcs > 0) {
931 if (len < 28 + nsrcs * sizeof(struct in6_addr))
932 printf(" [invalid number of sources]");
933 else if (vflag > 1) {
934 printf(" {");
935 for (i = 0; i < nsrcs; i++) {
936 TCHECK2(bp[28 + i * sizeof(struct in6_addr)],
937 sizeof(struct in6_addr));
938 printf(" %s", ip6addr_string(&bp[28 + i * sizeof(struct in6_addr)]));
939 }
940 printf(" }");
941 } else
942 printf(", %d source(s)", nsrcs);
943 }
944 printf("]");
945 return;
946 trunc:
947 (void)printf("[|icmp6]");
948 return;
949 }
950
951 static void
952 dnsname_print(const u_char *cp, const u_char *ep)
953 {
954 int i;
955
956 /* DNS name decoding - no decompression */
957 printf(", \"");
958 while (cp < ep) {
959 i = *cp++;
960 if (i) {
961 if (i > ep - cp) {
962 printf("???");
963 break;
964 }
965 while (i-- && cp < ep) {
966 safeputchar(*cp);
967 cp++;
968 }
969 if (cp + 1 < ep && *cp)
970 printf(".");
971 } else {
972 if (cp == ep) {
973 /* FQDN */
974 printf(".");
975 } else if (cp + 1 == ep && *cp == '\0') {
976 /* truncated */
977 } else {
978 /* invalid */
979 printf("???");
980 }
981 break;
982 }
983 }
984 printf("\"");
985 }
986
987 static void
988 icmp6_nodeinfo_print(u_int icmp6len, const u_char *bp, const u_char *ep)
989 {
990 struct icmp6_nodeinfo *ni6;
991 struct icmp6_hdr *dp;
992 const u_char *cp;
993 size_t siz, i;
994 int needcomma;
995
996 if (ep < bp)
997 return;
998 dp = (struct icmp6_hdr *)bp;
999 ni6 = (struct icmp6_nodeinfo *)bp;
1000 siz = ep - bp;
1001
1002 switch (ni6->ni_type) {
1003 case ICMP6_NI_QUERY:
1004 if (siz == sizeof(*dp) + 4) {
1005 /* KAME who-are-you */
1006 printf(" who-are-you request");
1007 break;
1008 }
1009 printf(" node information query");
1010
1011 TCHECK2(*dp, sizeof(*ni6));
1012 ni6 = (struct icmp6_nodeinfo *)dp;
1013 printf(" ("); /*)*/
1014 switch (EXTRACT_16BITS(&ni6->ni_qtype)) {
1015 case NI_QTYPE_NOOP:
1016 printf("noop");
1017 break;
1018 case NI_QTYPE_SUPTYPES:
1019 printf("supported qtypes");
1020 i = EXTRACT_16BITS(&ni6->ni_flags);
1021 if (i)
1022 printf(" [%s]", (i & 0x01) ? "C" : "");
1023 break;
1024 break;
1025 case NI_QTYPE_FQDN:
1026 printf("DNS name");
1027 break;
1028 case NI_QTYPE_NODEADDR:
1029 printf("node addresses");
1030 i = ni6->ni_flags;
1031 if (!i)
1032 break;
1033 /* NI_NODEADDR_FLAG_TRUNCATE undefined for query */
1034 printf(" [%s%s%s%s%s%s]",
1035 (i & NI_NODEADDR_FLAG_ANYCAST) ? "a" : "",
1036 (i & NI_NODEADDR_FLAG_GLOBAL) ? "G" : "",
1037 (i & NI_NODEADDR_FLAG_SITELOCAL) ? "S" : "",
1038 (i & NI_NODEADDR_FLAG_LINKLOCAL) ? "L" : "",
1039 (i & NI_NODEADDR_FLAG_COMPAT) ? "C" : "",
1040 (i & NI_NODEADDR_FLAG_ALL) ? "A" : "");
1041 break;
1042 default:
1043 printf("unknown");
1044 break;
1045 }
1046
1047 if (ni6->ni_qtype == NI_QTYPE_NOOP ||
1048 ni6->ni_qtype == NI_QTYPE_SUPTYPES) {
1049 if (siz != sizeof(*ni6))
1050 if (vflag)
1051 printf(", invalid len");
1052 /*(*/
1053 printf(")");
1054 break;
1055 }
1056
1057
1058 /* XXX backward compat, icmp-name-lookup-03 */
1059 if (siz == sizeof(*ni6)) {
1060 printf(", 03 draft");
1061 /*(*/
1062 printf(")");
1063 break;
1064 }
1065
1066 switch (ni6->ni_code) {
1067 case ICMP6_NI_SUBJ_IPV6:
1068 if (!TTEST2(*dp,
1069 sizeof(*ni6) + sizeof(struct in6_addr)))
1070 break;
1071 if (siz != sizeof(*ni6) + sizeof(struct in6_addr)) {
1072 if (vflag)
1073 printf(", invalid subject len");
1074 break;
1075 }
1076 printf(", subject=%s",
1077 getname6((const u_char *)(ni6 + 1)));
1078 break;
1079 case ICMP6_NI_SUBJ_FQDN:
1080 printf(", subject=DNS name");
1081 cp = (const u_char *)(ni6 + 1);
1082 if (cp[0] == ep - cp - 1) {
1083 /* icmp-name-lookup-03, pascal string */
1084 if (vflag)
1085 printf(", 03 draft");
1086 cp++;
1087 printf(", \"");
1088 while (cp < ep) {
1089 safeputchar(*cp);
1090 cp++;
1091 }
1092 printf("\"");
1093 } else
1094 dnsname_print(cp, ep);
1095 break;
1096 case ICMP6_NI_SUBJ_IPV4:
1097 if (!TTEST2(*dp, sizeof(*ni6) + sizeof(struct in_addr)))
1098 break;
1099 if (siz != sizeof(*ni6) + sizeof(struct in_addr)) {
1100 if (vflag)
1101 printf(", invalid subject len");
1102 break;
1103 }
1104 printf(", subject=%s",
1105 getname((const u_char *)(ni6 + 1)));
1106 break;
1107 default:
1108 printf(", unknown subject");
1109 break;
1110 }
1111
1112 /*(*/
1113 printf(")");
1114 break;
1115
1116 case ICMP6_NI_REPLY:
1117 if (icmp6len > siz) {
1118 printf("[|icmp6: node information reply]");
1119 break;
1120 }
1121
1122 needcomma = 0;
1123
1124 ni6 = (struct icmp6_nodeinfo *)dp;
1125 printf(" node information reply");
1126 printf(" ("); /*)*/
1127 switch (ni6->ni_code) {
1128 case ICMP6_NI_SUCCESS:
1129 if (vflag) {
1130 printf("success");
1131 needcomma++;
1132 }
1133 break;
1134 case ICMP6_NI_REFUSED:
1135 printf("refused");
1136 needcomma++;
1137 if (siz != sizeof(*ni6))
1138 if (vflag)
1139 printf(", invalid length");
1140 break;
1141 case ICMP6_NI_UNKNOWN:
1142 printf("unknown");
1143 needcomma++;
1144 if (siz != sizeof(*ni6))
1145 if (vflag)
1146 printf(", invalid length");
1147 break;
1148 }
1149
1150 if (ni6->ni_code != ICMP6_NI_SUCCESS) {
1151 /*(*/
1152 printf(")");
1153 break;
1154 }
1155
1156 switch (EXTRACT_16BITS(&ni6->ni_qtype)) {
1157 case NI_QTYPE_NOOP:
1158 if (needcomma)
1159 printf(", ");
1160 printf("noop");
1161 if (siz != sizeof(*ni6))
1162 if (vflag)
1163 printf(", invalid length");
1164 break;
1165 case NI_QTYPE_SUPTYPES:
1166 if (needcomma)
1167 printf(", ");
1168 printf("supported qtypes");
1169 i = EXTRACT_16BITS(&ni6->ni_flags);
1170 if (i)
1171 printf(" [%s]", (i & 0x01) ? "C" : "");
1172 break;
1173 case NI_QTYPE_FQDN:
1174 if (needcomma)
1175 printf(", ");
1176 printf("DNS name");
1177 cp = (const u_char *)(ni6 + 1) + 4;
1178 if (cp[0] == ep - cp - 1) {
1179 /* icmp-name-lookup-03, pascal string */
1180 if (vflag)
1181 printf(", 03 draft");
1182 cp++;
1183 printf(", \"");
1184 while (cp < ep) {
1185 safeputchar(*cp);
1186 cp++;
1187 }
1188 printf("\"");
1189 } else
1190 dnsname_print(cp, ep);
1191 if ((EXTRACT_16BITS(&ni6->ni_flags) & 0x01) != 0)
1192 printf(" [TTL=%u]", *(u_int32_t *)(ni6 + 1));
1193 break;
1194 case NI_QTYPE_NODEADDR:
1195 if (needcomma)
1196 printf(", ");
1197 printf("node addresses");
1198 i = sizeof(*ni6);
1199 while (i < siz) {
1200 if (i + sizeof(struct in6_addr) + sizeof(int32_t) > siz)
1201 break;
1202 printf(" %s", getname6(bp + i));
1203 i += sizeof(struct in6_addr);
1204 printf("(%d)", (int32_t)EXTRACT_32BITS(bp + i));
1205 i += sizeof(int32_t);
1206 }
1207 i = ni6->ni_flags;
1208 if (!i)
1209 break;
1210 printf(" [%s%s%s%s%s%s%s]",
1211 (i & NI_NODEADDR_FLAG_ANYCAST) ? "a" : "",
1212 (i & NI_NODEADDR_FLAG_GLOBAL) ? "G" : "",
1213 (i & NI_NODEADDR_FLAG_SITELOCAL) ? "S" : "",
1214 (i & NI_NODEADDR_FLAG_LINKLOCAL) ? "L" : "",
1215 (i & NI_NODEADDR_FLAG_COMPAT) ? "C" : "",
1216 (i & NI_NODEADDR_FLAG_ALL) ? "A" : "",
1217 (i & NI_NODEADDR_FLAG_TRUNCATE) ? "T" : "");
1218 break;
1219 default:
1220 if (needcomma)
1221 printf(", ");
1222 printf("unknown");
1223 break;
1224 }
1225
1226 /*(*/
1227 printf(")");
1228 break;
1229 }
1230 return;
1231
1232 trunc:
1233 fputs("[|icmp6]", stdout);
1234 }
1235
1236 static void
1237 icmp6_rrenum_print(const u_char *bp, const u_char *ep)
1238 {
1239 struct icmp6_router_renum *rr6;
1240 const char *cp;
1241 struct rr_pco_match *match;
1242 struct rr_pco_use *use;
1243 char hbuf[NI_MAXHOST];
1244 int n;
1245
1246 if (ep < bp)
1247 return;
1248 rr6 = (struct icmp6_router_renum *)bp;
1249 cp = (const char *)(rr6 + 1);
1250
1251 TCHECK(rr6->rr_reserved);
1252 switch (rr6->rr_code) {
1253 case ICMP6_ROUTER_RENUMBERING_COMMAND:
1254 printf("router renum: command");
1255 break;
1256 case ICMP6_ROUTER_RENUMBERING_RESULT:
1257 printf("router renum: result");
1258 break;
1259 case ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET:
1260 printf("router renum: sequence number reset");
1261 break;
1262 default:
1263 printf("router renum: code-#%d", rr6->rr_code);
1264 break;
1265 }
1266
1267 printf(", seq=%u", EXTRACT_32BITS(&rr6->rr_seqnum));
1268
1269 if (vflag) {
1270 #define F(x, y) ((rr6->rr_flags) & (x) ? (y) : "")
1271 printf("["); /*]*/
1272 if (rr6->rr_flags) {
1273 printf("%s%s%s%s%s,", F(ICMP6_RR_FLAGS_TEST, "T"),
1274 F(ICMP6_RR_FLAGS_REQRESULT, "R"),
1275 F(ICMP6_RR_FLAGS_FORCEAPPLY, "A"),
1276 F(ICMP6_RR_FLAGS_SPECSITE, "S"),
1277 F(ICMP6_RR_FLAGS_PREVDONE, "P"));
1278 }
1279 printf("seg=%u,", rr6->rr_segnum);
1280 printf("maxdelay=%u", EXTRACT_16BITS(&rr6->rr_maxdelay));
1281 if (rr6->rr_reserved)
1282 printf("rsvd=0x%x", EXTRACT_32BITS(&rr6->rr_reserved));
1283 /*[*/
1284 printf("]");
1285 #undef F
1286 }
1287
1288 if (rr6->rr_code == ICMP6_ROUTER_RENUMBERING_COMMAND) {
1289 match = (struct rr_pco_match *)cp;
1290 cp = (const char *)(match + 1);
1291
1292 TCHECK(match->rpm_prefix);
1293
1294 if (vflag > 1)
1295 printf("\n\t");
1296 else
1297 printf(" ");
1298 printf("match("); /*)*/
1299 switch (match->rpm_code) {
1300 case RPM_PCO_ADD: printf("add"); break;
1301 case RPM_PCO_CHANGE: printf("change"); break;
1302 case RPM_PCO_SETGLOBAL: printf("setglobal"); break;
1303 default: printf("#%u", match->rpm_code); break;
1304 }
1305
1306 if (vflag) {
1307 printf(",ord=%u", match->rpm_ordinal);
1308 printf(",min=%u", match->rpm_minlen);
1309 printf(",max=%u", match->rpm_maxlen);
1310 }
1311 if (inet_ntop(AF_INET6, &match->rpm_prefix, hbuf, sizeof(hbuf)))
1312 printf(",%s/%u", hbuf, match->rpm_matchlen);
1313 else
1314 printf(",?/%u", match->rpm_matchlen);
1315 /*(*/
1316 printf(")");
1317
1318 n = match->rpm_len - 3;
1319 if (n % 4)
1320 goto trunc;
1321 n /= 4;
1322 while (n-- > 0) {
1323 use = (struct rr_pco_use *)cp;
1324 cp = (const char *)(use + 1);
1325
1326 TCHECK(use->rpu_prefix);
1327
1328 if (vflag > 1)
1329 printf("\n\t");
1330 else
1331 printf(" ");
1332 printf("use("); /*)*/
1333 if (use->rpu_flags) {
1334 #define F(x, y) ((use->rpu_flags) & (x) ? (y) : "")
1335 printf("%s%s,",
1336 F(ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME, "V"),
1337 F(ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME, "P"));
1338 #undef F
1339 }
1340 if (vflag) {
1341 printf("mask=0x%x,", use->rpu_ramask);
1342 printf("raflags=0x%x,", use->rpu_raflags);
1343 if (~use->rpu_vltime == 0)
1344 printf("vltime=infty,");
1345 else
1346 printf("vltime=%u,",
1347 EXTRACT_32BITS(&use->rpu_vltime));
1348 if (~use->rpu_pltime == 0)
1349 printf("pltime=infty,");
1350 else
1351 printf("pltime=%u,",
1352 EXTRACT_32BITS(&use->rpu_pltime));
1353 }
1354 if (inet_ntop(AF_INET6, &use->rpu_prefix, hbuf,
1355 sizeof(hbuf)))
1356 printf("%s/%u/%u", hbuf, use->rpu_uselen,
1357 use->rpu_keeplen);
1358 else
1359 printf("?/%u/%u", use->rpu_uselen,
1360 use->rpu_keeplen);
1361 /*(*/
1362 printf(")");
1363 }
1364 }
1365
1366 return;
1367
1368 trunc:
1369 fputs("[|icmp6]", stdout);
1370 }
1371
1372 #endif /* INET6 */
DragonFly BSD