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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
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include <tcpdump-stdinc.h>
28
29 #ifdef SEGSIZE
30 #undef SEGSIZE
31 #endif
32 #include <arpa/tftp.h>
33
34 #include <rpc/rpc.h>
35
36 #include <stdio.h>
37 #include <string.h>
38
39 #include "interface.h"
40 #include "addrtoname.h"
41 #include "extract.h"
42 #include "appletalk.h"
43
44 #ifndef lint
45 static const char rcsid[] _U_ =
46 "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.124.2.1 2003-11-15 22:29:14 guy Exp $ (LBL)";
47 #endif
48 #include "udp.h"
49
50 #include "ip.h"
51 #ifdef INET6
52 #include "ip6.h"
53 #endif
54 #include "ipproto.h"
55
56 #include "nameser.h"
57 #include "nfs.h"
58 #include "bootp.h"
59
60 struct rtcphdr {
61 u_int16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */
62 u_int16_t rh_len; /* length of message (in words) */
63 u_int32_t rh_ssrc; /* synchronization src id */
64 };
65
66 typedef struct {
67 u_int32_t upper; /* more significant 32 bits */
68 u_int32_t lower; /* less significant 32 bits */
69 } ntp64;
70
71 /*
72 * Sender report.
73 */
74 struct rtcp_sr {
75 ntp64 sr_ntp; /* 64-bit ntp timestamp */
76 u_int32_t sr_ts; /* reference media timestamp */
77 u_int32_t sr_np; /* no. packets sent */
78 u_int32_t sr_nb; /* no. bytes sent */
79 };
80
81 /*
82 * Receiver report.
83 * Time stamps are middle 32-bits of ntp timestamp.
84 */
85 struct rtcp_rr {
86 u_int32_t rr_srcid; /* sender being reported */
87 u_int32_t rr_nl; /* no. packets lost */
88 u_int32_t rr_ls; /* extended last seq number received */
89 u_int32_t rr_dv; /* jitter (delay variance) */
90 u_int32_t rr_lsr; /* orig. ts from last rr from this src */
91 u_int32_t rr_dlsr; /* time from recpt of last rr to xmit time */
92 };
93
94 /*XXX*/
95 #define RTCP_PT_SR 200
96 #define RTCP_PT_RR 201
97 #define RTCP_PT_SDES 202
98 #define RTCP_SDES_CNAME 1
99 #define RTCP_SDES_NAME 2
100 #define RTCP_SDES_EMAIL 3
101 #define RTCP_SDES_PHONE 4
102 #define RTCP_SDES_LOC 5
103 #define RTCP_SDES_TOOL 6
104 #define RTCP_SDES_NOTE 7
105 #define RTCP_SDES_PRIV 8
106 #define RTCP_PT_BYE 203
107 #define RTCP_PT_APP 204
108
109 static void
110 vat_print(const void *hdr, register const struct udphdr *up)
111 {
112 /* vat/vt audio */
113 u_int ts = *(u_int16_t *)hdr;
114 if ((ts & 0xf060) != 0) {
115 /* probably vt */
116 (void)printf("udp/vt %u %d / %d",
117 (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),
118 ts & 0x3ff, ts >> 10);
119 } else {
120 /* probably vat */
121 u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
122 u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
123 printf("udp/vat %u c%d %u%s",
124 (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),
125 i0 & 0xffff,
126 i1, i0 & 0x800000? "*" : "");
127 /* audio format */
128 if (i0 & 0x1f0000)
129 printf(" f%d", (i0 >> 16) & 0x1f);
130 if (i0 & 0x3f000000)
131 printf(" s%d", (i0 >> 24) & 0x3f);
132 }
133 }
134
135 static void
136 rtp_print(const void *hdr, u_int len, register const struct udphdr *up)
137 {
138 /* rtp v1 or v2 */
139 u_int *ip = (u_int *)hdr;
140 u_int hasopt, hasext, contype, hasmarker;
141 u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
142 u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
143 u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;
144 const char * ptype;
145
146 ip += 2;
147 len >>= 2;
148 len -= 2;
149 hasopt = 0;
150 hasext = 0;
151 if ((i0 >> 30) == 1) {
152 /* rtp v1 */
153 hasopt = i0 & 0x800000;
154 contype = (i0 >> 16) & 0x3f;
155 hasmarker = i0 & 0x400000;
156 ptype = "rtpv1";
157 } else {
158 /* rtp v2 */
159 hasext = i0 & 0x10000000;
160 contype = (i0 >> 16) & 0x7f;
161 hasmarker = i0 & 0x800000;
162 dlen -= 4;
163 ptype = "rtp";
164 ip += 1;
165 len -= 1;
166 }
167 printf("udp/%s %d c%d %s%s %d %u",
168 ptype,
169 dlen,
170 contype,
171 (hasopt || hasext)? "+" : "",
172 hasmarker? "*" : "",
173 i0 & 0xffff,
174 i1);
175 if (vflag) {
176 printf(" %u", EXTRACT_32BITS(&((u_int *)hdr)[2]));
177 if (hasopt) {
178 u_int i2, optlen;
179 do {
180 i2 = ip[0];
181 optlen = (i2 >> 16) & 0xff;
182 if (optlen == 0 || optlen > len) {
183 printf(" !opt");
184 return;
185 }
186 ip += optlen;
187 len -= optlen;
188 } while ((int)i2 >= 0);
189 }
190 if (hasext) {
191 u_int i2, extlen;
192 i2 = ip[0];
193 extlen = (i2 & 0xffff) + 1;
194 if (extlen > len) {
195 printf(" !ext");
196 return;
197 }
198 ip += extlen;
199 }
200 if (contype == 0x1f) /*XXX H.261 */
201 printf(" 0x%04x", ip[0] >> 16);
202 }
203 }
204
205 static const u_char *
206 rtcp_print(const u_char *hdr, const u_char *ep)
207 {
208 /* rtp v2 control (rtcp) */
209 struct rtcp_rr *rr = 0;
210 struct rtcp_sr *sr;
211 struct rtcphdr *rh = (struct rtcphdr *)hdr;
212 u_int len;
213 u_int16_t flags;
214 int cnt;
215 double ts, dts;
216 if ((u_char *)(rh + 1) > ep) {
217 printf(" [|rtcp]");
218 return (ep);
219 }
220 len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
221 flags = EXTRACT_16BITS(&rh->rh_flags);
222 cnt = (flags >> 8) & 0x1f;
223 switch (flags & 0xff) {
224 case RTCP_PT_SR:
225 sr = (struct rtcp_sr *)(rh + 1);
226 printf(" sr");
227 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
228 printf(" [%d]", len);
229 if (vflag)
230 printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
231 if ((u_char *)(sr + 1) > ep) {
232 printf(" [|rtcp]");
233 return (ep);
234 }
235 ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
236 ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
237 4294967296.0);
238 printf(" @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
239 EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb));
240 rr = (struct rtcp_rr *)(sr + 1);
241 break;
242 case RTCP_PT_RR:
243 printf(" rr");
244 if (len != cnt * sizeof(*rr) + sizeof(*rh))
245 printf(" [%d]", len);
246 rr = (struct rtcp_rr *)(rh + 1);
247 if (vflag)
248 printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
249 break;
250 case RTCP_PT_SDES:
251 printf(" sdes %d", len);
252 if (vflag)
253 printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
254 cnt = 0;
255 break;
256 case RTCP_PT_BYE:
257 printf(" bye %d", len);
258 if (vflag)
259 printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
260 cnt = 0;
261 break;
262 default:
263 printf(" type-0x%x %d", flags & 0xff, len);
264 cnt = 0;
265 break;
266 }
267 if (cnt > 1)
268 printf(" c%d", cnt);
269 while (--cnt >= 0) {
270 if ((u_char *)(rr + 1) > ep) {
271 printf(" [|rtcp]");
272 return (ep);
273 }
274 if (vflag)
275 printf(" %u", EXTRACT_32BITS(&rr->rr_srcid));
276 ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.;
277 dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.;
278 printf(" %ul %us %uj @%.2f+%.2f",
279 EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff,
280 EXTRACT_32BITS(&rr->rr_ls),
281 EXTRACT_32BITS(&rr->rr_dv), ts, dts);
282 }
283 return (hdr + len);
284 }
285
286 static int udp_cksum(register const struct ip *ip,
287 register const struct udphdr *up,
288 register int len)
289 {
290 union phu {
291 struct phdr {
292 u_int32_t src;
293 u_int32_t dst;
294 u_char mbz;
295 u_char proto;
296 u_int16_t len;
297 } ph;
298 u_int16_t pa[6];
299 } phu;
300 register const u_int16_t *sp;
301
302 /* pseudo-header.. */
303 phu.ph.len = htons(len);
304 phu.ph.mbz = 0;
305 phu.ph.proto = IPPROTO_UDP;
306 memcpy(&phu.ph.src, &ip->ip_src.s_addr, sizeof(u_int32_t));
307 if (IP_HL(ip) == 5)
308 memcpy(&phu.ph.dst, &ip->ip_dst.s_addr, sizeof(u_int32_t));
309 else
310 phu.ph.dst = ip_finddst(ip);
311
312 sp = &phu.pa[0];
313 return in_cksum((u_short *)up, len,
314 sp[0]+sp[1]+sp[2]+sp[3]+sp[4]+sp[5]);
315 }
316
317 #ifdef INET6
318 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
319 int len)
320 {
321 int i, tlen;
322 register const u_int16_t *sp;
323 u_int32_t sum;
324 union {
325 struct {
326 struct in6_addr ph_src;
327 struct in6_addr ph_dst;
328 u_int32_t ph_len;
329 u_int8_t ph_zero[3];
330 u_int8_t ph_nxt;
331 } ph;
332 u_int16_t pa[20];
333 } phu;
334
335 tlen = EXTRACT_16BITS(&ip6->ip6_plen) + sizeof(struct ip6_hdr) -
336 ((const char *)up - (const char*)ip6);
337
338 /* pseudo-header */
339 memset(&phu, 0, sizeof(phu));
340 phu.ph.ph_src = ip6->ip6_src;
341 phu.ph.ph_dst = ip6->ip6_dst;
342 phu.ph.ph_len = htonl(tlen);
343 phu.ph.ph_nxt = IPPROTO_UDP;
344
345 sum = 0;
346 for (i = 0; i < sizeof(phu.pa) / sizeof(phu.pa[0]); i++)
347 sum += phu.pa[i];
348
349 sp = (const u_int16_t *)up;
350
351 for (i = 0; i < (tlen & ~1); i += 2)
352 sum += *sp++;
353
354 if (tlen & 1)
355 sum += htons((*(const u_int8_t *)sp) << 8);
356
357 while (sum > 0xffff)
358 sum = (sum & 0xffff) + (sum >> 16);
359 sum = ~sum & 0xffff;
360
361 return (sum);
362 }
363 #endif
364
365 static void
366 udpipaddr_print(const struct ip *ip, int sport, int dport)
367 {
368 #ifdef INET6
369 const struct ip6_hdr *ip6;
370
371 if (IP_V(ip) == 6)
372 ip6 = (const struct ip6_hdr *)ip;
373 else
374 ip6 = NULL;
375
376 if (ip6) {
377 if (ip6->ip6_nxt == IPPROTO_UDP) {
378 if (sport == -1) {
379 (void)printf("%s > %s: ",
380 ip6addr_string(&ip6->ip6_src),
381 ip6addr_string(&ip6->ip6_dst));
382 } else {
383 (void)printf("%s.%s > %s.%s: ",
384 ip6addr_string(&ip6->ip6_src),
385 udpport_string(sport),
386 ip6addr_string(&ip6->ip6_dst),
387 udpport_string(dport));
388 }
389 } else {
390 if (sport != -1) {
391 (void)printf("%s > %s: ",
392 udpport_string(sport),
393 udpport_string(dport));
394 }
395 }
396 } else
397 #endif /*INET6*/
398 {
399 if (ip->ip_p == IPPROTO_UDP) {
400 if (sport == -1) {
401 (void)printf("%s > %s: ",
402 ipaddr_string(&ip->ip_src),
403 ipaddr_string(&ip->ip_dst));
404 } else {
405 (void)printf("%s.%s > %s.%s: ",
406 ipaddr_string(&ip->ip_src),
407 udpport_string(sport),
408 ipaddr_string(&ip->ip_dst),
409 udpport_string(dport));
410 }
411 } else {
412 if (sport != -1) {
413 (void)printf("%s > %s: ",
414 udpport_string(sport),
415 udpport_string(dport));
416 }
417 }
418 }
419 }
420
421 void
422 udp_print(register const u_char *bp, u_int length,
423 register const u_char *bp2, int fragmented)
424 {
425 register const struct udphdr *up;
426 register const struct ip *ip;
427 register const u_char *cp;
428 register const u_char *ep = bp + length;
429 u_int16_t sport, dport, ulen;
430 #ifdef INET6
431 register const struct ip6_hdr *ip6;
432 #endif
433
434 if (ep > snapend)
435 ep = snapend;
436 up = (struct udphdr *)bp;
437 ip = (struct ip *)bp2;
438 #ifdef INET6
439 if (IP_V(ip) == 6)
440 ip6 = (struct ip6_hdr *)bp2;
441 else
442 ip6 = NULL;
443 #endif /*INET6*/
444 cp = (u_char *)(up + 1);
445 if (!TTEST(up->uh_dport)) {
446 udpipaddr_print(ip, -1, -1);
447 (void)printf("[|udp]");
448 return;
449 }
450
451 sport = EXTRACT_16BITS(&up->uh_sport);
452 dport = EXTRACT_16BITS(&up->uh_dport);
453
454 if (length < sizeof(struct udphdr)) {
455 udpipaddr_print(ip, sport, dport);
456 (void)printf("truncated-udp %d", length);
457 return;
458 }
459 length -= sizeof(struct udphdr);
460
461 if (cp > snapend) {
462 udpipaddr_print(ip, sport, dport);
463 (void)printf("[|udp]");
464 return;
465 }
466
467 ulen = EXTRACT_16BITS(&up->uh_ulen);
468 if (ulen < 8) {
469 udpipaddr_print(ip, sport, dport);
470 (void)printf("truncated-udplength %d", ulen);
471 return;
472 }
473 if (packettype) {
474 register struct rpc_msg *rp;
475 enum msg_type direction;
476
477 switch (packettype) {
478
479 case PT_VAT:
480 udpipaddr_print(ip, sport, dport);
481 vat_print((void *)(up + 1), up);
482 break;
483
484 case PT_WB:
485 udpipaddr_print(ip, sport, dport);
486 wb_print((void *)(up + 1), length);
487 break;
488
489 case PT_RPC:
490 rp = (struct rpc_msg *)(up + 1);
491 direction = (enum msg_type)EXTRACT_32BITS(&rp->rm_direction);
492 if (direction == CALL)
493 sunrpcrequest_print((u_char *)rp, length,
494 (u_char *)ip);
495 else
496 nfsreply_print((u_char *)rp, length,
497 (u_char *)ip); /*XXX*/
498 break;
499
500 case PT_RTP:
501 udpipaddr_print(ip, sport, dport);
502 rtp_print((void *)(up + 1), length, up);
503 break;
504
505 case PT_RTCP:
506 udpipaddr_print(ip, sport, dport);
507 while (cp < ep)
508 cp = rtcp_print(cp, ep);
509 break;
510
511 case PT_SNMP:
512 udpipaddr_print(ip, sport, dport);
513 snmp_print((const u_char *)(up + 1), length);
514 break;
515
516 case PT_CNFP:
517 udpipaddr_print(ip, sport, dport);
518 cnfp_print(cp, (const u_char *)ip);
519 break;
520
521 case PT_TFTP:
522 udpipaddr_print(ip, sport, dport);
523 tftp_print(cp, length);
524 break;
525
526 case PT_AODV:
527 udpipaddr_print(ip, sport, dport);
528 aodv_print((const u_char *)(up + 1), length,
529 #ifdef INET6
530 ip6 != NULL);
531 #else
532 FALSE);
533 #endif
534 break;
535 }
536 return;
537 }
538
539 if (!qflag) {
540 register struct rpc_msg *rp;
541 enum msg_type direction;
542
543 rp = (struct rpc_msg *)(up + 1);
544 if (TTEST(rp->rm_direction)) {
545 direction = (enum msg_type)EXTRACT_32BITS(&rp->rm_direction);
546 if (dport == NFS_PORT && direction == CALL) {
547 nfsreq_print((u_char *)rp, length,
548 (u_char *)ip);
549 return;
550 }
551 if (sport == NFS_PORT && direction == REPLY) {
552 nfsreply_print((u_char *)rp, length,
553 (u_char *)ip);
554 return;
555 }
556 #ifdef notdef
557 if (dport == SUNRPC_PORT && direction == CALL) {
558 sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
559 return;
560 }
561 #endif
562 }
563 if (TTEST(((struct LAP *)cp)->type) &&
564 ((struct LAP *)cp)->type == lapDDP &&
565 (atalk_port(sport) || atalk_port(dport))) {
566 if (vflag)
567 fputs("kip ", stdout);
568 llap_print(cp, length);
569 return;
570 }
571 }
572 udpipaddr_print(ip, sport, dport);
573
574 if (IP_V(ip) == 4 && vflag && !fragmented) {
575 int sum = up->uh_sum;
576 if (sum == 0) {
577 (void)printf("[no cksum] ");
578 } else if (TTEST2(cp[0], length)) {
579 sum = udp_cksum(ip, up, length + sizeof(struct udphdr));
580 if (sum != 0)
581 (void)printf("[bad udp cksum %x!] ", sum);
582 else
583 (void)printf("[udp sum ok] ");
584 }
585 }
586 #ifdef INET6
587 if (IP_V(ip) == 6 && ip6->ip6_plen && vflag && !fragmented) {
588 int sum = up->uh_sum;
589 /* for IPv6, UDP checksum is mandatory */
590 if (TTEST2(cp[0], length)) {
591 sum = udp6_cksum(ip6, up, length);
592 if (sum != 0)
593 (void)printf("[bad udp cksum %x!] ", sum);
594 else
595 (void)printf("[udp sum ok] ");
596 }
597 }
598 #endif
599
600 if (!qflag) {
601 #define ISPORT(p) (dport == (p) || sport == (p))
602 if (ISPORT(NAMESERVER_PORT))
603 ns_print((const u_char *)(up + 1), length, 0);
604 else if (ISPORT(MULTICASTDNS_PORT))
605 ns_print((const u_char *)(up + 1), length, 1);
606 else if (ISPORT(TIMED_PORT))
607 timed_print((const u_char *)(up + 1));
608 else if (ISPORT(TFTP_PORT))
609 tftp_print((const u_char *)(up + 1), length);
610 else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
611 bootp_print((const u_char *)(up + 1), length);
612 else if (ISPORT(RIP_PORT))
613 rip_print((const u_char *)(up + 1), length);
614 else if (ISPORT(AODV_PORT))
615 aodv_print((const u_char *)(up + 1), length,
616 #ifdef INET6
617 ip6 != NULL);
618 #else
619 FALSE);
620 #endif
621 else if (ISPORT(ISAKMP_PORT))
622 isakmp_print((const u_char *)(up + 1), length, bp2);
623 #if 1 /*???*/
624 else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
625 isakmp_print((const u_char *)(up + 1), length, bp2);
626 #endif
627 else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
628 snmp_print((const u_char *)(up + 1), length);
629 else if (ISPORT(NTP_PORT))
630 ntp_print((const u_char *)(up + 1), length);
631 else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))
632 krb_print((const void *)(up + 1));
633 else if (ISPORT(L2TP_PORT))
634 l2tp_print((const u_char *)(up + 1), length);
635 #ifdef TCPDUMP_DO_SMB
636 else if (ISPORT(NETBIOS_NS_PORT))
637 nbt_udp137_print((const u_char *)(up + 1), length);
638 else if (ISPORT(NETBIOS_DGRAM_PORT))
639 nbt_udp138_print((const u_char *)(up + 1), length);
640 #endif
641 else if (dport == 3456)
642 vat_print((const void *)(up + 1), up);
643 else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT))
644 zephyr_print((const void *)(up + 1), length);
645 /*
646 * Since there are 10 possible ports to check, I think
647 * a <> test would be more efficient
648 */
649 else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
650 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
651 rx_print((const void *)(up + 1), length, sport, dport,
652 (u_char *) ip);
653 #ifdef INET6
654 else if (ISPORT(RIPNG_PORT))
655 ripng_print((const u_char *)(up + 1), length);
656 else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) {
657 dhcp6_print((const u_char *)(up + 1), length,
658 sport, dport);
659 }
660 #endif /*INET6*/
661 /*
662 * Kludge in test for whiteboard packets.
663 */
664 else if (dport == 4567)
665 wb_print((const void *)(up + 1), length);
666 else if (ISPORT(CISCO_AUTORP_PORT))
667 cisco_autorp_print((const void *)(up + 1), length);
668 else if (ISPORT(RADIUS_PORT) ||
669 ISPORT(RADIUS_NEW_PORT) ||
670 ISPORT(RADIUS_ACCOUNTING_PORT) ||
671 ISPORT(RADIUS_NEW_ACCOUNTING_PORT) )
672 radius_print((const u_char *)(up+1), length);
673 else if (dport == HSRP_PORT)
674 hsrp_print((const u_char *)(up + 1), length);
675 else if (ISPORT(LWRES_PORT))
676 lwres_print((const u_char *)(up + 1), length);
677 else if (ISPORT(LDP_PORT))
678 ldp_print((const u_char *)(up + 1), length);
679 else if (ISPORT(MPLS_LSP_PING_PORT))
680 mpls_lsp_ping_print((const u_char *)(up + 1), length);
681 else if (dport == BFD_CONTROL_PORT ||
682 dport == BFD_ECHO_PORT )
683 bfd_print((const u_char *)(up+1), length, dport);
684 else
685 (void)printf("UDP, length: %u",
686 (u_int32_t)(ulen - sizeof(*up)));
687 #undef ISPORT
688 } else
689 (void)printf("UDP, length: %u", (u_int32_t)(ulen - sizeof(*up)));
690 }
[mirror] the TCPdump network dissector