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[tcpdump] / print-udp.c
1 /*
2 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
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[] =
24 "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.108 2002-08-20 00:01:38 hannes Exp $ (LBL)";
25 #endif
26
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #include <tcpdump-stdinc.h>
32
33 #ifdef SEGSIZE
34 #undef SEGSIZE
35 #endif
36 #include <arpa/tftp.h>
37
38 #include <rpc/rpc.h>
39
40 #include <stdio.h>
41 #include <string.h>
42
43 #include "interface.h"
44 #include "addrtoname.h"
45 #include "appletalk.h"
46
47 #include "udp.h"
48
49 #include "ip.h"
50 #ifdef INET6
51 #include "ip6.h"
52 #endif
53
54 #include "nameser.h"
55 #include "nfs.h"
56 #include "bootp.h"
57
58 struct rtcphdr {
59 u_int16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */
60 u_int16_t rh_len; /* length of message (in words) */
61 u_int32_t rh_ssrc; /* synchronization src id */
62 };
63
64 typedef struct {
65 u_int32_t upper; /* more significant 32 bits */
66 u_int32_t lower; /* less significant 32 bits */
67 } ntp64;
68
69 /*
70 * Sender report.
71 */
72 struct rtcp_sr {
73 ntp64 sr_ntp; /* 64-bit ntp timestamp */
74 u_int32_t sr_ts; /* reference media timestamp */
75 u_int32_t sr_np; /* no. packets sent */
76 u_int32_t sr_nb; /* no. bytes sent */
77 };
78
79 /*
80 * Receiver report.
81 * Time stamps are middle 32-bits of ntp timestamp.
82 */
83 struct rtcp_rr {
84 u_int32_t rr_srcid; /* sender being reported */
85 u_int32_t rr_nl; /* no. packets lost */
86 u_int32_t rr_ls; /* extended last seq number received */
87 u_int32_t rr_dv; /* jitter (delay variance) */
88 u_int32_t rr_lsr; /* orig. ts from last rr from this src */
89 u_int32_t rr_dlsr; /* time from recpt of last rr to xmit time */
90 };
91
92 /*XXX*/
93 #define RTCP_PT_SR 200
94 #define RTCP_PT_RR 201
95 #define RTCP_PT_SDES 202
96 #define RTCP_SDES_CNAME 1
97 #define RTCP_SDES_NAME 2
98 #define RTCP_SDES_EMAIL 3
99 #define RTCP_SDES_PHONE 4
100 #define RTCP_SDES_LOC 5
101 #define RTCP_SDES_TOOL 6
102 #define RTCP_SDES_NOTE 7
103 #define RTCP_SDES_PRIV 8
104 #define RTCP_PT_BYE 203
105 #define RTCP_PT_APP 204
106
107 static void
108 vat_print(const void *hdr, u_int len, register const struct udphdr *up)
109 {
110 /* vat/vt audio */
111 u_int ts = *(u_int16_t *)hdr;
112 if ((ts & 0xf060) != 0) {
113 /* probably vt */
114 (void)printf("udp/vt %u %d / %d",
115 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up)),
116 ts & 0x3ff, ts >> 10);
117 } else {
118 /* probably vat */
119 u_int32_t i0 = (u_int32_t)ntohl(((u_int *)hdr)[0]);
120 u_int32_t i1 = (u_int32_t)ntohl(((u_int *)hdr)[1]);
121 printf("udp/vat %u c%d %u%s",
122 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up) - 8),
123 i0 & 0xffff,
124 i1, i0 & 0x800000? "*" : "");
125 /* audio format */
126 if (i0 & 0x1f0000)
127 printf(" f%d", (i0 >> 16) & 0x1f);
128 if (i0 & 0x3f000000)
129 printf(" s%d", (i0 >> 24) & 0x3f);
130 }
131 }
132
133 static void
134 rtp_print(const void *hdr, u_int len, register const struct udphdr *up)
135 {
136 /* rtp v1 or v2 */
137 u_int *ip = (u_int *)hdr;
138 u_int hasopt, hasext, contype, hasmarker;
139 u_int32_t i0 = (u_int32_t)ntohl(((u_int *)hdr)[0]);
140 u_int32_t i1 = (u_int32_t)ntohl(((u_int *)hdr)[1]);
141 u_int dlen = ntohs(up->uh_ulen) - sizeof(*up) - 8;
142 const char * ptype;
143
144 ip += 2;
145 len >>= 2;
146 len -= 2;
147 hasopt = 0;
148 hasext = 0;
149 if ((i0 >> 30) == 1) {
150 /* rtp v1 */
151 hasopt = i0 & 0x800000;
152 contype = (i0 >> 16) & 0x3f;
153 hasmarker = i0 & 0x400000;
154 ptype = "rtpv1";
155 } else {
156 /* rtp v2 */
157 hasext = i0 & 0x10000000;
158 contype = (i0 >> 16) & 0x7f;
159 hasmarker = i0 & 0x800000;
160 dlen -= 4;
161 ptype = "rtp";
162 ip += 1;
163 len -= 1;
164 }
165 printf("udp/%s %d c%d %s%s %d %u",
166 ptype,
167 dlen,
168 contype,
169 (hasopt || hasext)? "+" : "",
170 hasmarker? "*" : "",
171 i0 & 0xffff,
172 i1);
173 if (vflag) {
174 printf(" %u", (u_int32_t)ntohl(((u_int *)hdr)[2]));
175 if (hasopt) {
176 u_int i2, optlen;
177 do {
178 i2 = ip[0];
179 optlen = (i2 >> 16) & 0xff;
180 if (optlen == 0 || optlen > len) {
181 printf(" !opt");
182 return;
183 }
184 ip += optlen;
185 len -= optlen;
186 } while ((int)i2 >= 0);
187 }
188 if (hasext) {
189 u_int i2, extlen;
190 i2 = ip[0];
191 extlen = (i2 & 0xffff) + 1;
192 if (extlen > len) {
193 printf(" !ext");
194 return;
195 }
196 ip += extlen;
197 }
198 if (contype == 0x1f) /*XXX H.261 */
199 printf(" 0x%04x", ip[0] >> 16);
200 }
201 }
202
203 static const u_char *
204 rtcp_print(const u_char *hdr, const u_char *ep)
205 {
206 /* rtp v2 control (rtcp) */
207 struct rtcp_rr *rr = 0;
208 struct rtcp_sr *sr;
209 struct rtcphdr *rh = (struct rtcphdr *)hdr;
210 u_int len;
211 u_int16_t flags;
212 int cnt;
213 double ts, dts;
214 if ((u_char *)(rh + 1) > ep) {
215 printf(" [|rtcp]");
216 return (ep);
217 }
218 len = (ntohs(rh->rh_len) + 1) * 4;
219 flags = ntohs(rh->rh_flags);
220 cnt = (flags >> 8) & 0x1f;
221 switch (flags & 0xff) {
222 case RTCP_PT_SR:
223 sr = (struct rtcp_sr *)(rh + 1);
224 printf(" sr");
225 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
226 printf(" [%d]", len);
227 if (vflag)
228 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
229 if ((u_char *)(sr + 1) > ep) {
230 printf(" [|rtcp]");
231 return (ep);
232 }
233 ts = (double)((u_int32_t)ntohl(sr->sr_ntp.upper)) +
234 ((double)((u_int32_t)ntohl(sr->sr_ntp.lower)) /
235 4294967296.0);
236 printf(" @%.2f %u %up %ub", ts, (u_int32_t)ntohl(sr->sr_ts),
237 (u_int32_t)ntohl(sr->sr_np), (u_int32_t)ntohl(sr->sr_nb));
238 rr = (struct rtcp_rr *)(sr + 1);
239 break;
240 case RTCP_PT_RR:
241 printf(" rr");
242 if (len != cnt * sizeof(*rr) + sizeof(*rh))
243 printf(" [%d]", len);
244 rr = (struct rtcp_rr *)(rh + 1);
245 if (vflag)
246 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
247 break;
248 case RTCP_PT_SDES:
249 printf(" sdes %d", len);
250 if (vflag)
251 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
252 cnt = 0;
253 break;
254 case RTCP_PT_BYE:
255 printf(" bye %d", len);
256 if (vflag)
257 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
258 cnt = 0;
259 break;
260 default:
261 printf(" type-0x%x %d", flags & 0xff, len);
262 cnt = 0;
263 break;
264 }
265 if (cnt > 1)
266 printf(" c%d", cnt);
267 while (--cnt >= 0) {
268 if ((u_char *)(rr + 1) > ep) {
269 printf(" [|rtcp]");
270 return (ep);
271 }
272 if (vflag)
273 printf(" %u", (u_int32_t)ntohl(rr->rr_srcid));
274 ts = (double)((u_int32_t)ntohl(rr->rr_lsr)) / 65536.;
275 dts = (double)((u_int32_t)ntohl(rr->rr_dlsr)) / 65536.;
276 printf(" %ul %us %uj @%.2f+%.2f",
277 (u_int32_t)ntohl(rr->rr_nl) & 0x00ffffff,
278 (u_int32_t)ntohl(rr->rr_ls),
279 (u_int32_t)ntohl(rr->rr_dv), ts, dts);
280 }
281 return (hdr + len);
282 }
283
284 static int udp_cksum(register const struct ip *ip,
285 register const struct udphdr *up,
286 register int len)
287 {
288 union phu {
289 struct phdr {
290 u_int32_t src;
291 u_int32_t dst;
292 u_char mbz;
293 u_char proto;
294 u_int16_t len;
295 } ph;
296 u_int16_t pa[6];
297 } phu;
298 register const u_int16_t *sp;
299
300 /* pseudo-header.. */
301 phu.ph.len = htons(len);
302 phu.ph.mbz = 0;
303 phu.ph.proto = IPPROTO_UDP;
304 memcpy(&phu.ph.src, &ip->ip_src.s_addr, sizeof(u_int32_t));
305 if (IP_HL(ip) == 5)
306 memcpy(&phu.ph.dst, &ip->ip_dst.s_addr, sizeof(u_int32_t));
307 else
308 phu.ph.dst = ip_finddst(ip);
309
310 sp = &phu.pa[0];
311 return in_cksum((u_short *)up, len,
312 sp[0]+sp[1]+sp[2]+sp[3]+sp[4]+sp[5]);
313 }
314
315 #ifdef INET6
316 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
317 int len)
318 {
319 int i, tlen;
320 register const u_int16_t *sp;
321 u_int32_t sum;
322 union {
323 struct {
324 struct in6_addr ph_src;
325 struct in6_addr ph_dst;
326 u_int32_t ph_len;
327 u_int8_t ph_zero[3];
328 u_int8_t ph_nxt;
329 } ph;
330 u_int16_t pa[20];
331 } phu;
332
333 tlen = ntohs(ip6->ip6_plen) + sizeof(struct ip6_hdr) -
334 ((const char *)up - (const char*)ip6);
335
336 /* pseudo-header */
337 memset(&phu, 0, sizeof(phu));
338 phu.ph.ph_src = ip6->ip6_src;
339 phu.ph.ph_dst = ip6->ip6_dst;
340 phu.ph.ph_len = htonl(tlen);
341 phu.ph.ph_nxt = IPPROTO_UDP;
342
343 sum = 0;
344 for (i = 0; i < sizeof(phu.pa) / sizeof(phu.pa[0]); i++)
345 sum += phu.pa[i];
346
347 sp = (const u_int16_t *)up;
348
349 for (i = 0; i < (tlen & ~1); i += 2)
350 sum += *sp++;
351
352 if (tlen & 1)
353 sum += htons((*(const u_int8_t *)sp) << 8);
354
355 while (sum > 0xffff)
356 sum = (sum & 0xffff) + (sum >> 16);
357 sum = ~sum & 0xffff;
358
359 return (sum);
360 }
361 #endif
362
363
364 /* XXX probably should use getservbyname() and cache answers */
365 #define TFTP_PORT 69 /*XXX*/
366 #define KERBEROS_PORT 88 /*XXX*/
367 #define SUNRPC_PORT 111 /*XXX*/
368 #define SNMP_PORT 161 /*XXX*/
369 #define NTP_PORT 123 /*XXX*/
370 #define SNMPTRAP_PORT 162 /*XXX*/
371 #define ISAKMP_PORT 500 /*XXX*/
372 #define TIMED_PORT 525 /*XXX*/
373 #define RIP_PORT 520 /*XXX*/
374 #define LDP_PORT 646
375 #define KERBEROS_SEC_PORT 750 /*XXX*/
376 #define L2TP_PORT 1701 /*XXX*/
377 #define ISAKMP_PORT_USER1 7500 /*XXX - nonstandard*/
378 #define ISAKMP_PORT_USER2 8500 /*XXX - nonstandard*/
379 #define RX_PORT_LOW 7000 /*XXX*/
380 #define RX_PORT_HIGH 7009 /*XXX*/
381 #define NETBIOS_NS_PORT 137
382 #define NETBIOS_DGRAM_PORT 138
383 #define CISCO_AUTORP_PORT 496 /*XXX*/
384 #define RADIUS_PORT 1645
385 #define RADIUS_NEW_PORT 1812
386 #define RADIUS_ACCOUNTING_PORT 1646
387 #define RADIUS_NEW_ACCOUNTING_PORT 1813
388 #define HSRP_PORT 1985 /*XXX*/
389 #define LWRES_PORT 921
390 #define ZEPHYR_SRV_PORT 2103
391 #define ZEPHYR_CLT_PORT 2104
392
393 #ifdef INET6
394 #define RIPNG_PORT 521 /*XXX*/
395 #define DHCP6_SERV_PORT 546 /*XXX*/
396 #define DHCP6_CLI_PORT 547 /*XXX*/
397 #endif
398
399 static void
400 udpipaddr_print(const struct ip *ip, u_int16_t sport, u_int16_t dport)
401 {
402 #ifdef INET6
403 const struct ip6_hdr *ip6;
404
405 if (IP_V(ip) == 6)
406 ip6 = (const struct ip6_hdr *)ip;
407 else
408 ip6 = NULL;
409
410 if (ip6) {
411 if (ip6->ip6_nxt == IPPROTO_UDP) {
412 (void)printf("%s.%s > %s.%s: ",
413 ip6addr_string(&ip6->ip6_src),
414 udpport_string(sport),
415 ip6addr_string(&ip6->ip6_dst),
416 udpport_string(dport));
417 } else {
418 (void)printf("%s > %s: ",
419 udpport_string(sport), udpport_string(dport));
420 }
421 } else
422 #endif /*INET6*/
423 {
424 if (ip->ip_p == IPPROTO_UDP) {
425 (void)printf("%s.%s > %s.%s: ",
426 ipaddr_string(&ip->ip_src),
427 udpport_string(sport),
428 ipaddr_string(&ip->ip_dst),
429 udpport_string(dport));
430 } else {
431 (void)printf("%s > %s: ",
432 udpport_string(sport), udpport_string(dport));
433 }
434 }
435 }
436
437 void
438 udp_print(register const u_char *bp, u_int length,
439 register const u_char *bp2, int fragmented)
440 {
441 register const struct udphdr *up;
442 register const struct ip *ip;
443 register const u_char *cp;
444 register const u_char *ep = bp + length;
445 u_int16_t sport, dport, ulen;
446 #ifdef INET6
447 register const struct ip6_hdr *ip6;
448 #endif
449
450 if (ep > snapend)
451 ep = snapend;
452 up = (struct udphdr *)bp;
453 ip = (struct ip *)bp2;
454 #ifdef INET6
455 if (IP_V(ip) == 6)
456 ip6 = (struct ip6_hdr *)bp2;
457 else
458 ip6 = NULL;
459 #endif /*INET6*/
460 cp = (u_char *)(up + 1);
461 if (cp > snapend) {
462 (void)printf("%s > %s: [|udp]",
463 ipaddr_string(&ip->ip_src), ipaddr_string(&ip->ip_dst));
464 return;
465 }
466 if (length < sizeof(struct udphdr)) {
467 (void)printf("%s > %s: truncated-udp %d",
468 ipaddr_string(&ip->ip_src), ipaddr_string(&ip->ip_dst),
469 length);
470 return;
471 }
472 length -= sizeof(struct udphdr);
473
474 sport = ntohs(up->uh_sport);
475 dport = ntohs(up->uh_dport);
476 ulen = ntohs(up->uh_ulen);
477 if (ulen < 8) {
478 (void)printf("%s > %s: truncated-udplength %d",
479 ipaddr_string(&ip->ip_src),
480 ipaddr_string(&ip->ip_dst),
481 ulen);
482 return;
483 }
484 if (packettype) {
485 register struct rpc_msg *rp;
486 enum msg_type direction;
487
488 switch (packettype) {
489
490 case PT_VAT:
491 udpipaddr_print(ip, sport, dport);
492 vat_print((void *)(up + 1), length, up);
493 break;
494
495 case PT_WB:
496 udpipaddr_print(ip, sport, dport);
497 wb_print((void *)(up + 1), length);
498 break;
499
500 case PT_RPC:
501 rp = (struct rpc_msg *)(up + 1);
502 direction = (enum msg_type)ntohl(rp->rm_direction);
503 if (direction == CALL)
504 sunrpcrequest_print((u_char *)rp, length,
505 (u_char *)ip);
506 else
507 nfsreply_print((u_char *)rp, length,
508 (u_char *)ip); /*XXX*/
509 break;
510
511 case PT_RTP:
512 udpipaddr_print(ip, sport, dport);
513 rtp_print((void *)(up + 1), length, up);
514 break;
515
516 case PT_RTCP:
517 udpipaddr_print(ip, sport, dport);
518 while (cp < ep)
519 cp = rtcp_print(cp, ep);
520 break;
521
522 case PT_SNMP:
523 udpipaddr_print(ip, sport, dport);
524 snmp_print((const u_char *)(up + 1), length);
525 break;
526
527 case PT_CNFP:
528 udpipaddr_print(ip, sport, dport);
529 cnfp_print(cp, length, (const u_char *)ip);
530 break;
531 }
532 return;
533 }
534
535 if (!qflag) {
536 register struct rpc_msg *rp;
537 enum msg_type direction;
538
539 rp = (struct rpc_msg *)(up + 1);
540 if (TTEST(rp->rm_direction)) {
541 direction = (enum msg_type)ntohl(rp->rm_direction);
542 if (dport == NFS_PORT && direction == CALL) {
543 nfsreq_print((u_char *)rp, length,
544 (u_char *)ip);
545 return;
546 }
547 if (sport == NFS_PORT && direction == REPLY) {
548 nfsreply_print((u_char *)rp, length,
549 (u_char *)ip);
550 return;
551 }
552 #ifdef notdef
553 if (dport == SUNRPC_PORT && direction == CALL) {
554 sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
555 return;
556 }
557 #endif
558 }
559 if (TTEST(((struct LAP *)cp)->type) &&
560 ((struct LAP *)cp)->type == lapDDP &&
561 (atalk_port(sport) || atalk_port(dport))) {
562 if (vflag)
563 fputs("kip ", stdout);
564 llap_print(cp, length);
565 return;
566 }
567 }
568 udpipaddr_print(ip, sport, dport);
569
570 if (IP_V(ip) == 4 && vflag && !fragmented) {
571 int sum = up->uh_sum;
572 if (sum == 0) {
573 (void)printf("[no cksum] ");
574 } else if (TTEST2(cp[0], length)) {
575 sum = udp_cksum(ip, up, length + sizeof(struct udphdr));
576 if (sum != 0)
577 (void)printf("[bad udp cksum %x!] ", sum);
578 else
579 (void)printf("[udp sum ok] ");
580 }
581 }
582 #ifdef INET6
583 if (IP_V(ip) == 6 && ip6->ip6_plen && vflag && !fragmented) {
584 int sum = up->uh_sum;
585 /* for IPv6, UDP checksum is mandatory */
586 if (TTEST2(cp[0], length)) {
587 sum = udp6_cksum(ip6, up, length);
588 if (sum != 0)
589 (void)printf("[bad udp cksum %x!] ", sum);
590 else
591 (void)printf("[udp sum ok] ");
592 }
593 }
594 #endif
595
596 if (!qflag) {
597 #define ISPORT(p) (dport == (p) || sport == (p))
598 if (ISPORT(NAMESERVER_PORT) || ISPORT(MULTICASTDNS_PORT))
599 ns_print((const u_char *)(up + 1), length);
600 else if (ISPORT(TIMED_PORT))
601 timed_print((const u_char *)(up + 1), length);
602 else if (ISPORT(TFTP_PORT))
603 tftp_print((const u_char *)(up + 1), length);
604 else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
605 bootp_print((const u_char *)(up + 1), length,
606 sport, dport);
607 else if (ISPORT(RIP_PORT))
608 rip_print((const u_char *)(up + 1), length);
609 else if (ISPORT(ISAKMP_PORT))
610 isakmp_print((const u_char *)(up + 1), length, bp2);
611 #if 1 /*???*/
612 else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
613 isakmp_print((const u_char *)(up + 1), length, bp2);
614 #endif
615 else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
616 snmp_print((const u_char *)(up + 1), length);
617 else if (ISPORT(NTP_PORT))
618 ntp_print((const u_char *)(up + 1), length);
619 else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))
620 krb_print((const void *)(up + 1), length);
621 else if (ISPORT(L2TP_PORT))
622 l2tp_print((const u_char *)(up + 1), length);
623 #ifdef TCPDUMP_DO_SMB
624 else if (ISPORT(NETBIOS_NS_PORT))
625 nbt_udp137_print((const u_char *)(up + 1), length);
626 else if (ISPORT(NETBIOS_DGRAM_PORT))
627 nbt_udp138_print((const u_char *)(up + 1), length);
628 #endif
629 else if (dport == 3456)
630 vat_print((const void *)(up + 1), length, up);
631 else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT))
632 zephyr_print((const void *)(up + 1), length);
633 /*
634 * Since there are 10 possible ports to check, I think
635 * a <> test would be more efficient
636 */
637 else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
638 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
639 rx_print((const void *)(up + 1), length, sport, dport,
640 (u_char *) ip);
641 #ifdef INET6
642 else if (ISPORT(RIPNG_PORT))
643 ripng_print((const u_char *)(up + 1), length);
644 else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) {
645 dhcp6_print((const u_char *)(up + 1), length,
646 sport, dport);
647 }
648 #endif /*INET6*/
649 /*
650 * Kludge in test for whiteboard packets.
651 */
652 else if (dport == 4567)
653 wb_print((const void *)(up + 1), length);
654 else if (ISPORT(CISCO_AUTORP_PORT))
655 cisco_autorp_print((const void *)(up + 1), length);
656 else if (ISPORT(RADIUS_PORT) ||
657 ISPORT(RADIUS_NEW_PORT) ||
658 ISPORT(RADIUS_ACCOUNTING_PORT) ||
659 ISPORT(RADIUS_NEW_ACCOUNTING_PORT) )
660 radius_print((const u_char *)(up+1), length);
661 else if (dport == HSRP_PORT)
662 hsrp_print((const u_char *)(up + 1), length);
663 else if (ISPORT(LWRES_PORT))
664 lwres_print((const u_char *)(up + 1), length);
665 else if (ISPORT(LDP_PORT))
666 printf("LDP, length: %u", length);
667 else
668 (void)printf("udp %u",
669 (u_int32_t)(ulen - sizeof(*up)));
670 #undef ISPORT
671 } else
672 (void)printf("udp %u", (u_int32_t)(ulen - sizeof(*up)));
673 }
674
675
676
677
678
679
[mirror] the TCPdump network dissector