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/* \summary: UDP printer */
23
24#ifdef HAVE_CONFIG_H
25#include "config.h"
26#endif
27
28#include <netdissect-stdinc.h>
29
30#include "netdissect.h"
31#include "addrtoname.h"
32#include "extract.h"
33#include "appletalk.h"
34
35#include "udp.h"
36
37#include "ip.h"
38#include "ip6.h"
39#include "ipproto.h"
40#include "rpc_auth.h"
41#include "rpc_msg.h"
42
43#include "nfs.h"
44
45static const char vat_tstr[] = " [|vat]";
46static const char rtp_tstr[] = " [|rtp]";
47static const char rtcp_tstr[] = " [|rtcp]";
48static const char udp_tstr[] = " [|udp]";
49
50struct rtcphdr {
51	uint16_t rh_flags;	/* T:2 P:1 CNT:5 PT:8 */
52	uint16_t rh_len;	/* length of message (in words) */
53	uint32_t rh_ssrc;	/* synchronization src id */
54};
55
56typedef struct {
57	uint32_t upper;	/* more significant 32 bits */
58	uint32_t lower;	/* less significant 32 bits */
59} ntp64;
60
61/*
62 * Sender report.
63 */
64struct rtcp_sr {
65	ntp64 sr_ntp;		/* 64-bit ntp timestamp */
66	uint32_t sr_ts;	/* reference media timestamp */
67	uint32_t sr_np;	/* no. packets sent */
68	uint32_t sr_nb;	/* no. bytes sent */
69};
70
71/*
72 * Receiver report.
73 * Time stamps are middle 32-bits of ntp timestamp.
74 */
75struct rtcp_rr {
76	uint32_t rr_srcid;	/* sender being reported */
77	uint32_t rr_nl;	/* no. packets lost */
78	uint32_t rr_ls;	/* extended last seq number received */
79	uint32_t rr_dv;	/* jitter (delay variance) */
80	uint32_t rr_lsr;	/* orig. ts from last rr from this src  */
81	uint32_t rr_dlsr;	/* time from recpt of last rr to xmit time */
82};
83
84/*XXX*/
85#define RTCP_PT_SR	200
86#define RTCP_PT_RR	201
87#define RTCP_PT_SDES	202
88#define 	RTCP_SDES_CNAME	1
89#define 	RTCP_SDES_NAME	2
90#define 	RTCP_SDES_EMAIL	3
91#define 	RTCP_SDES_PHONE	4
92#define 	RTCP_SDES_LOC	5
93#define 	RTCP_SDES_TOOL	6
94#define 	RTCP_SDES_NOTE	7
95#define 	RTCP_SDES_PRIV	8
96#define RTCP_PT_BYE	203
97#define RTCP_PT_APP	204
98
99static void
100vat_print(netdissect_options *ndo, const void *hdr, register const struct udphdr *up)
101{
102	/* vat/vt audio */
103	u_int ts;
104
105	ND_TCHECK_16BITS((const u_int *)hdr);
106	ts = EXTRACT_16BITS(hdr);
107	if ((ts & 0xf060) != 0) {
108		/* probably vt */
109		ND_TCHECK_16BITS(&up->uh_ulen);
110		ND_PRINT((ndo, "udp/vt %u %d / %d",
111			     (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),
112			     ts & 0x3ff, ts >> 10));
113	} else {
114		/* probably vat */
115		uint32_t i0, i1;
116
117		ND_TCHECK_32BITS(&((const u_int *)hdr)[0]);
118		i0 = EXTRACT_32BITS(&((const u_int *)hdr)[0]);
119		ND_TCHECK_32BITS(&((const u_int *)hdr)[1]);
120		i1 = EXTRACT_32BITS(&((const u_int *)hdr)[1]);
121		ND_TCHECK_16BITS(&up->uh_ulen);
122		ND_PRINT((ndo, "udp/vat %u c%d %u%s",
123			(uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),
124			i0 & 0xffff,
125			i1, i0 & 0x800000? "*" : ""));
126		/* audio format */
127		if (i0 & 0x1f0000)
128			ND_PRINT((ndo, " f%d", (i0 >> 16) & 0x1f));
129		if (i0 & 0x3f000000)
130			ND_PRINT((ndo, " s%d", (i0 >> 24) & 0x3f));
131	}
132
133trunc:
134	ND_PRINT((ndo, "%s", vat_tstr));
135}
136
137static void
138rtp_print(netdissect_options *ndo, const void *hdr, u_int len,
139          register const struct udphdr *up)
140{
141	/* rtp v1 or v2 */
142	const u_int *ip = (const u_int *)hdr;
143	u_int hasopt, hasext, contype, hasmarker, dlen;
144	uint32_t i0, i1;
145	const char * ptype;
146
147	ND_TCHECK_32BITS(&((const u_int *)hdr)[0]);
148	i0 = EXTRACT_32BITS(&((const u_int *)hdr)[0]);
149	ND_TCHECK_32BITS(&((const u_int *)hdr)[1]);
150	i1 = EXTRACT_32BITS(&((const u_int *)hdr)[1]);
151	ND_TCHECK_16BITS(&up->uh_ulen);
152	dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;
153	ip += 2;
154	len >>= 2;
155	len -= 2;
156	hasopt = 0;
157	hasext = 0;
158	if ((i0 >> 30) == 1) {
159		/* rtp v1 - draft-ietf-avt-rtp-04 */
160		hasopt = i0 & 0x800000;
161		contype = (i0 >> 16) & 0x3f;
162		hasmarker = i0 & 0x400000;
163		ptype = "rtpv1";
164	} else {
165		/* rtp v2 - RFC 3550 */
166		hasext = i0 & 0x10000000;
167		contype = (i0 >> 16) & 0x7f;
168		hasmarker = i0 & 0x800000;
169		dlen -= 4;
170		ptype = "rtp";
171		ip += 1;
172		len -= 1;
173	}
174	ND_PRINT((ndo, "udp/%s %d c%d %s%s %d %u",
175		ptype,
176		dlen,
177		contype,
178		(hasopt || hasext)? "+" : "",
179		hasmarker? "*" : "",
180		i0 & 0xffff,
181		i1));
182	if (ndo->ndo_vflag) {
183		ND_TCHECK_32BITS(&((const u_int *)hdr)[2]);
184		ND_PRINT((ndo, " %u", EXTRACT_32BITS(&((const u_int *)hdr)[2])));
185		if (hasopt) {
186			u_int i2, optlen;
187			do {
188				ND_TCHECK_32BITS(ip);
189				i2 = EXTRACT_32BITS(ip);
190				optlen = (i2 >> 16) & 0xff;
191				if (optlen == 0 || optlen > len) {
192					ND_PRINT((ndo, " !opt"));
193					return;
194				}
195				ip += optlen;
196				len -= optlen;
197			} while ((int)i2 >= 0);
198		}
199		if (hasext) {
200			u_int i2, extlen;
201			ND_TCHECK_32BITS(ip);
202			i2 = EXTRACT_32BITS(ip);
203			extlen = (i2 & 0xffff) + 1;
204			if (extlen > len) {
205				ND_PRINT((ndo, " !ext"));
206				return;
207			}
208			ip += extlen;
209		}
210		ND_TCHECK_32BITS(ip);
211		if (contype == 0x1f) /*XXX H.261 */
212			ND_PRINT((ndo, " 0x%04x", EXTRACT_32BITS(ip) >> 16));
213	}
214
215trunc:
216	ND_PRINT((ndo, "%s", rtp_tstr));
217}
218
219static const u_char *
220rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)
221{
222	/* rtp v2 control (rtcp) */
223	const struct rtcp_rr *rr = 0;
224	const struct rtcp_sr *sr;
225	const struct rtcphdr *rh = (const struct rtcphdr *)hdr;
226	u_int len;
227	uint16_t flags;
228	int cnt;
229	double ts, dts;
230	if ((const u_char *)(rh + 1) > ep)
231		goto trunc;
232	ND_TCHECK(*rh);
233	len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
234	flags = EXTRACT_16BITS(&rh->rh_flags);
235	cnt = (flags >> 8) & 0x1f;
236	switch (flags & 0xff) {
237	case RTCP_PT_SR:
238		sr = (const struct rtcp_sr *)(rh + 1);
239		ND_PRINT((ndo, " sr"));
240		if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
241			ND_PRINT((ndo, " [%d]", len));
242		if (ndo->ndo_vflag)
243			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
244		if ((const u_char *)(sr + 1) > ep)
245			goto trunc;
246		ND_TCHECK(*sr);
247		ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
248		    ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
249		    4294967296.0);
250		ND_PRINT((ndo, " @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
251		    EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb)));
252		rr = (const struct rtcp_rr *)(sr + 1);
253		break;
254	case RTCP_PT_RR:
255		ND_PRINT((ndo, " rr"));
256		if (len != cnt * sizeof(*rr) + sizeof(*rh))
257			ND_PRINT((ndo, " [%d]", len));
258		rr = (const struct rtcp_rr *)(rh + 1);
259		if (ndo->ndo_vflag)
260			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
261		break;
262	case RTCP_PT_SDES:
263		ND_PRINT((ndo, " sdes %d", len));
264		if (ndo->ndo_vflag)
265			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
266		cnt = 0;
267		break;
268	case RTCP_PT_BYE:
269		ND_PRINT((ndo, " bye %d", len));
270		if (ndo->ndo_vflag)
271			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
272		cnt = 0;
273		break;
274	default:
275		ND_PRINT((ndo, " type-0x%x %d", flags & 0xff, len));
276		cnt = 0;
277		break;
278	}
279	if (cnt > 1)
280		ND_PRINT((ndo, " c%d", cnt));
281	while (--cnt >= 0) {
282		if ((const u_char *)(rr + 1) > ep)
283			goto trunc;
284		ND_TCHECK(*rr);
285		if (ndo->ndo_vflag)
286			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rr->rr_srcid)));
287		ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.;
288		dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.;
289		ND_PRINT((ndo, " %ul %us %uj @%.2f+%.2f",
290		    EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff,
291		    EXTRACT_32BITS(&rr->rr_ls),
292		    EXTRACT_32BITS(&rr->rr_dv), ts, dts));
293	}
294	return (hdr + len);
295
296trunc:
297	ND_PRINT((ndo, "%s", rtcp_tstr));
298	return ep;
299}
300
301static int udp_cksum(netdissect_options *ndo, register const struct ip *ip,
302		     register const struct udphdr *up,
303		     register u_int len)
304{
305	return nextproto4_cksum(ndo, ip, (const uint8_t *)(const void *)up, len, len,
306				IPPROTO_UDP);
307}
308
309static int udp6_cksum(netdissect_options *ndo, const struct ip6_hdr *ip6,
310		      const struct udphdr *up, u_int len)
311{
312	return nextproto6_cksum(ndo, ip6, (const uint8_t *)(const void *)up, len, len,
313				IPPROTO_UDP);
314}
315
316static void
317udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport)
318{
319	const struct ip6_hdr *ip6;
320
321	if (IP_V(ip) == 6)
322		ip6 = (const struct ip6_hdr *)ip;
323	else
324		ip6 = NULL;
325
326	if (ip6) {
327		if (ip6->ip6_nxt == IPPROTO_UDP) {
328			if (sport == -1) {
329				ND_PRINT((ndo, "%s > %s: ",
330					ip6addr_string(ndo, &ip6->ip6_src),
331					ip6addr_string(ndo, &ip6->ip6_dst)));
332			} else {
333				ND_PRINT((ndo, "%s.%s > %s.%s: ",
334					ip6addr_string(ndo, &ip6->ip6_src),
335					udpport_string(ndo, sport),
336					ip6addr_string(ndo, &ip6->ip6_dst),
337					udpport_string(ndo, dport)));
338			}
339		} else {
340			if (sport != -1) {
341				ND_PRINT((ndo, "%s > %s: ",
342					udpport_string(ndo, sport),
343					udpport_string(ndo, dport)));
344			}
345		}
346	} else {
347		if (ip->ip_p == IPPROTO_UDP) {
348			if (sport == -1) {
349				ND_PRINT((ndo, "%s > %s: ",
350					ipaddr_string(ndo, &ip->ip_src),
351					ipaddr_string(ndo, &ip->ip_dst)));
352			} else {
353				ND_PRINT((ndo, "%s.%s > %s.%s: ",
354					ipaddr_string(ndo, &ip->ip_src),
355					udpport_string(ndo, sport),
356					ipaddr_string(ndo, &ip->ip_dst),
357					udpport_string(ndo, dport)));
358			}
359		} else {
360			if (sport != -1) {
361				ND_PRINT((ndo, "%s > %s: ",
362					udpport_string(ndo, sport),
363					udpport_string(ndo, dport)));
364			}
365		}
366	}
367}
368
369void
370udp_print(netdissect_options *ndo, register const u_char *bp, u_int length,
371	  register const u_char *bp2, int fragmented)
372{
373	register const struct udphdr *up;
374	register const struct ip *ip;
375	register const u_char *cp;
376	register const u_char *ep = bp + length;
377	uint16_t sport, dport, ulen;
378	register const struct ip6_hdr *ip6;
379
380	if (ep > ndo->ndo_snapend)
381		ep = ndo->ndo_snapend;
382	up = (const struct udphdr *)bp;
383	ip = (const struct ip *)bp2;
384	if (IP_V(ip) == 6)
385		ip6 = (const struct ip6_hdr *)bp2;
386	else
387		ip6 = NULL;
388	if (!ND_TTEST(up->uh_dport)) {
389		udpipaddr_print(ndo, ip, -1, -1);
390		goto trunc;
391	}
392
393	sport = EXTRACT_16BITS(&up->uh_sport);
394	dport = EXTRACT_16BITS(&up->uh_dport);
395
396	if (length < sizeof(struct udphdr)) {
397		udpipaddr_print(ndo, ip, sport, dport);
398		ND_PRINT((ndo, "truncated-udp %d", length));
399		return;
400	}
401	if (!ND_TTEST(up->uh_ulen)) {
402		udpipaddr_print(ndo, ip, sport, dport);
403		goto trunc;
404	}
405	ulen = EXTRACT_16BITS(&up->uh_ulen);
406	if (ulen < sizeof(struct udphdr)) {
407		udpipaddr_print(ndo, ip, sport, dport);
408		ND_PRINT((ndo, "truncated-udplength %d", ulen));
409		return;
410	}
411	ulen -= sizeof(struct udphdr);
412	length -= sizeof(struct udphdr);
413	if (ulen < length)
414		length = ulen;
415
416	cp = (const u_char *)(up + 1);
417	if (cp > ndo->ndo_snapend) {
418		udpipaddr_print(ndo, ip, sport, dport);
419		goto trunc;
420	}
421
422	if (ndo->ndo_packettype) {
423		register const struct sunrpc_msg *rp;
424		enum sunrpc_msg_type direction;
425
426		switch (ndo->ndo_packettype) {
427
428		case PT_VAT:
429			udpipaddr_print(ndo, ip, sport, dport);
430			vat_print(ndo, (const void *)(up + 1), up);
431			break;
432
433		case PT_WB:
434			udpipaddr_print(ndo, ip, sport, dport);
435			wb_print(ndo, (const void *)(up + 1), length);
436			break;
437
438		case PT_RPC:
439			rp = (const struct sunrpc_msg *)(up + 1);
440			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
441			if (direction == SUNRPC_CALL)
442				sunrpcrequest_print(ndo, (const u_char *)rp, length,
443				    (const u_char *)ip);
444			else
445				nfsreply_print(ndo, (const u_char *)rp, length,
446				    (const u_char *)ip);			/*XXX*/
447			break;
448
449		case PT_RTP:
450			udpipaddr_print(ndo, ip, sport, dport);
451			rtp_print(ndo, (const void *)(up + 1), length, up);
452			break;
453
454		case PT_RTCP:
455			udpipaddr_print(ndo, ip, sport, dport);
456			while (cp < ep)
457				cp = rtcp_print(ndo, cp, ep);
458			break;
459
460		case PT_SNMP:
461			udpipaddr_print(ndo, ip, sport, dport);
462			snmp_print(ndo, (const u_char *)(up + 1), length);
463			break;
464
465		case PT_CNFP:
466			udpipaddr_print(ndo, ip, sport, dport);
467			cnfp_print(ndo, cp);
468			break;
469
470		case PT_TFTP:
471			udpipaddr_print(ndo, ip, sport, dport);
472			tftp_print(ndo, cp, length);
473			break;
474
475		case PT_AODV:
476			udpipaddr_print(ndo, ip, sport, dport);
477			aodv_print(ndo, (const u_char *)(up + 1), length,
478			    ip6 != NULL);
479			break;
480
481		case PT_RADIUS:
482			udpipaddr_print(ndo, ip, sport, dport);
483			radius_print(ndo, cp, length);
484			break;
485
486		case PT_VXLAN:
487			udpipaddr_print(ndo, ip, sport, dport);
488			vxlan_print(ndo, (const u_char *)(up + 1), length);
489			break;
490
491		case PT_PGM:
492		case PT_PGM_ZMTP1:
493			udpipaddr_print(ndo, ip, sport, dport);
494			pgm_print(ndo, cp, length, bp2);
495			break;
496		case PT_LMP:
497			udpipaddr_print(ndo, ip, sport, dport);
498			lmp_print(ndo, cp, length);
499			break;
500		}
501		return;
502	}
503
504	udpipaddr_print(ndo, ip, sport, dport);
505	if (!ndo->ndo_qflag) {
506		register const struct sunrpc_msg *rp;
507		enum sunrpc_msg_type direction;
508
509		rp = (const struct sunrpc_msg *)(up + 1);
510		if (ND_TTEST(rp->rm_direction)) {
511			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
512			if (dport == NFS_PORT && direction == SUNRPC_CALL) {
513				ND_PRINT((ndo, "NFS request xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
514				nfsreq_print_noaddr(ndo, (const u_char *)rp, length,
515				    (const u_char *)ip);
516				return;
517			}
518			if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
519				ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
520				nfsreply_print_noaddr(ndo, (const u_char *)rp, length,
521				    (const u_char *)ip);
522				return;
523			}
524#ifdef notdef
525			if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
526				sunrpcrequest_print((const u_char *)rp, length, (const u_char *)ip);
527				return;
528			}
529#endif
530		}
531	}
532
533	if (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) {
534                /* Check the checksum, if possible. */
535                uint16_t sum, udp_sum;
536
537		/*
538		 * XXX - do this even if vflag == 1?
539		 * TCP does, and we do so for UDP-over-IPv6.
540		 */
541	        if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) {
542			udp_sum = EXTRACT_16BITS(&up->uh_sum);
543			if (udp_sum == 0) {
544				ND_PRINT((ndo, "[no cksum] "));
545			} else if (ND_TTEST2(cp[0], length)) {
546				sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr));
547
548	                        if (sum != 0) {
549					ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",
550					    udp_sum,
551					    in_cksum_shouldbe(udp_sum, sum)));
552				} else
553					ND_PRINT((ndo, "[udp sum ok] "));
554			}
555		}
556		else if (IP_V(ip) == 6 && ip6->ip6_plen) {
557			/* for IPv6, UDP checksum is mandatory */
558			if (ND_TTEST2(cp[0], length)) {
559				sum = udp6_cksum(ndo, ip6, up, length + sizeof(struct udphdr));
560				udp_sum = EXTRACT_16BITS(&up->uh_sum);
561
562	                        if (sum != 0) {
563					ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",
564					    udp_sum,
565					    in_cksum_shouldbe(udp_sum, sum)));
566				} else
567					ND_PRINT((ndo, "[udp sum ok] "));
568			}
569		}
570	}
571
572	if (!ndo->ndo_qflag) {
573		if (IS_SRC_OR_DST_PORT(NAMESERVER_PORT))
574			ns_print(ndo, (const u_char *)(up + 1), length, 0);
575		else if (IS_SRC_OR_DST_PORT(MULTICASTDNS_PORT))
576			ns_print(ndo, (const u_char *)(up + 1), length, 1);
577		else if (IS_SRC_OR_DST_PORT(TIMED_PORT))
578			timed_print(ndo, (const u_char *)(up + 1));
579		else if (IS_SRC_OR_DST_PORT(TFTP_PORT))
580			tftp_print(ndo, (const u_char *)(up + 1), length);
581		else if (IS_SRC_OR_DST_PORT(BOOTPC_PORT) || IS_SRC_OR_DST_PORT(BOOTPS_PORT))
582			bootp_print(ndo, (const u_char *)(up + 1), length);
583		else if (IS_SRC_OR_DST_PORT(RIP_PORT))
584			rip_print(ndo, (const u_char *)(up + 1), length);
585		else if (IS_SRC_OR_DST_PORT(AODV_PORT))
586			aodv_print(ndo, (const u_char *)(up + 1), length,
587			    ip6 != NULL);
588	        else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT))
589			 isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
590	        else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_NATT))
591			 isakmp_rfc3948_print(ndo, (const u_char *)(up + 1), length, bp2);
592#if 1 /*???*/
593	        else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER1) || IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER2))
594			isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
595#endif
596		else if (IS_SRC_OR_DST_PORT(SNMP_PORT) || IS_SRC_OR_DST_PORT(SNMPTRAP_PORT))
597			snmp_print(ndo, (const u_char *)(up + 1), length);
598		else if (IS_SRC_OR_DST_PORT(NTP_PORT))
599			ntp_print(ndo, (const u_char *)(up + 1), length);
600		else if (IS_SRC_OR_DST_PORT(KERBEROS_PORT) || IS_SRC_OR_DST_PORT(KERBEROS_SEC_PORT))
601			krb_print(ndo, (const void *)(up + 1));
602		else if (IS_SRC_OR_DST_PORT(L2TP_PORT))
603			l2tp_print(ndo, (const u_char *)(up + 1), length);
604#ifdef ENABLE_SMB
605		else if (IS_SRC_OR_DST_PORT(NETBIOS_NS_PORT))
606			nbt_udp137_print(ndo, (const u_char *)(up + 1), length);
607		else if (IS_SRC_OR_DST_PORT(NETBIOS_DGRAM_PORT))
608			nbt_udp138_print(ndo, (const u_char *)(up + 1), length);
609#endif
610		else if (dport == VAT_PORT)
611			vat_print(ndo, (const void *)(up + 1), up);
612		else if (IS_SRC_OR_DST_PORT(ZEPHYR_SRV_PORT) || IS_SRC_OR_DST_PORT(ZEPHYR_CLT_PORT))
613			zephyr_print(ndo, (const void *)(up + 1), length);
614		/*
615		 * Since there are 10 possible ports to check, I think
616		 * a <> test would be more efficient
617		 */
618		else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
619			 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
620			rx_print(ndo, (const void *)(up + 1), length, sport, dport,
621				 (const u_char *) ip);
622		else if (IS_SRC_OR_DST_PORT(RIPNG_PORT))
623			ripng_print(ndo, (const u_char *)(up + 1), length);
624		else if (IS_SRC_OR_DST_PORT(DHCP6_SERV_PORT) || IS_SRC_OR_DST_PORT(DHCP6_CLI_PORT))
625			dhcp6_print(ndo, (const u_char *)(up + 1), length);
626		else if (IS_SRC_OR_DST_PORT(AHCP_PORT))
627			ahcp_print(ndo, (const u_char *)(up + 1), length);
628		else if (IS_SRC_OR_DST_PORT(BABEL_PORT) || IS_SRC_OR_DST_PORT(BABEL_PORT_OLD))
629			babel_print(ndo, (const u_char *)(up + 1), length);
630		else if (IS_SRC_OR_DST_PORT(HNCP_PORT))
631			hncp_print(ndo, (const u_char *)(up + 1), length);
632		/*
633		 * Kludge in test for whiteboard packets.
634		 */
635		else if (dport == WB_PORT)
636			wb_print(ndo, (const void *)(up + 1), length);
637		else if (IS_SRC_OR_DST_PORT(CISCO_AUTORP_PORT))
638			cisco_autorp_print(ndo, (const void *)(up + 1), length);
639		else if (IS_SRC_OR_DST_PORT(RADIUS_PORT) ||
640			 IS_SRC_OR_DST_PORT(RADIUS_NEW_PORT) ||
641			 IS_SRC_OR_DST_PORT(RADIUS_ACCOUNTING_PORT) ||
642			 IS_SRC_OR_DST_PORT(RADIUS_NEW_ACCOUNTING_PORT) ||
643			 IS_SRC_OR_DST_PORT(RADIUS_CISCO_COA_PORT) ||
644			 IS_SRC_OR_DST_PORT(RADIUS_COA_PORT) )
645			radius_print(ndo, (const u_char *)(up+1), length);
646		else if (dport == HSRP_PORT)
647			hsrp_print(ndo, (const u_char *)(up + 1), length);
648		else if (IS_SRC_OR_DST_PORT(LWRES_PORT))
649			lwres_print(ndo, (const u_char *)(up + 1), length);
650		else if (IS_SRC_OR_DST_PORT(LDP_PORT))
651			ldp_print(ndo, (const u_char *)(up + 1), length);
652		else if (IS_SRC_OR_DST_PORT(OLSR_PORT))
653			olsr_print(ndo, (const u_char *)(up + 1), length,
654					(IP_V(ip) == 6) ? 1 : 0);
655		else if (IS_SRC_OR_DST_PORT(MPLS_LSP_PING_PORT))
656			lspping_print(ndo, (const u_char *)(up + 1), length);
657		else if (dport == BFD_CONTROL_PORT ||
658			 dport == BFD_ECHO_PORT )
659			bfd_print(ndo, (const u_char *)(up+1), length, dport);
660                else if (IS_SRC_OR_DST_PORT(LMP_PORT))
661			lmp_print(ndo, (const u_char *)(up + 1), length);
662		else if (IS_SRC_OR_DST_PORT(VQP_PORT))
663			vqp_print(ndo, (const u_char *)(up + 1), length);
664                else if (IS_SRC_OR_DST_PORT(SFLOW_PORT))
665                        sflow_print(ndo, (const u_char *)(up + 1), length);
666	        else if (dport == LWAPP_CONTROL_PORT)
667			lwapp_control_print(ndo, (const u_char *)(up + 1), length, 1);
668                else if (sport == LWAPP_CONTROL_PORT)
669                        lwapp_control_print(ndo, (const u_char *)(up + 1), length, 0);
670                else if (IS_SRC_OR_DST_PORT(LWAPP_DATA_PORT))
671                        lwapp_data_print(ndo, (const u_char *)(up + 1), length);
672                else if (IS_SRC_OR_DST_PORT(SIP_PORT))
673			sip_print(ndo, (const u_char *)(up + 1), length);
674                else if (IS_SRC_OR_DST_PORT(SYSLOG_PORT))
675			syslog_print(ndo, (const u_char *)(up + 1), length);
676                else if (IS_SRC_OR_DST_PORT(OTV_PORT))
677			otv_print(ndo, (const u_char *)(up + 1), length);
678                else if (IS_SRC_OR_DST_PORT(VXLAN_PORT))
679			vxlan_print(ndo, (const u_char *)(up + 1), length);
680                else if (IS_SRC_OR_DST_PORT(GENEVE_PORT))
681			geneve_print(ndo, (const u_char *)(up + 1), length);
682		else if (IS_SRC_OR_DST_PORT(LISP_CONTROL_PORT))
683			lisp_print(ndo, (const u_char *)(up + 1), length);
684		else if (IS_SRC_OR_DST_PORT(VXLAN_GPE_PORT))
685			vxlan_gpe_print(ndo, (const u_char *)(up + 1), length);
686		else if (ND_TTEST(((const struct LAP *)cp)->type) &&
687		    ((const struct LAP *)cp)->type == lapDDP &&
688		    (atalk_port(sport) || atalk_port(dport))) {
689			if (ndo->ndo_vflag)
690				ND_PRINT((ndo, "kip "));
691			llap_print(ndo, cp, length);
692		} else {
693			if (ulen > length)
694				ND_PRINT((ndo, "UDP, bad length %u > %u",
695				    ulen, length));
696			else
697				ND_PRINT((ndo, "UDP, length %u", ulen));
698		}
699	} else {
700		if (ulen > length)
701			ND_PRINT((ndo, "UDP, bad length %u > %u",
702			    ulen, length));
703		else
704			ND_PRINT((ndo, "UDP, length %u", ulen));
705	}
706	return;
707
708trunc:
709	ND_PRINT((ndo, "%s", udp_tstr));
710}
711
712
713/*
714 * Local Variables:
715 * c-style: whitesmith
716 * c-basic-offset: 8
717 * End:
718 */
719