xref: /netbsd-src/external/bsd/tcpdump/dist/print-udp.c (revision b7b7574d3bf8eeb51a1fa3977b59142ec6434a55)
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 #include <sys/cdefs.h>
23 #ifndef lint
24 #if 0
25 static const char rcsid[] _U_ =
26     "@(#) Header: /tcpdump/master/tcpdump/print-udp.c,v 1.142 2007-08-08 17:20:58 hannes Exp  (LBL)";
27 #else
28 __RCSID("$NetBSD: print-udp.c,v 1.4 2013/12/31 17:33:31 christos Exp $");
29 #endif
30 #endif
31 
32 #ifdef HAVE_CONFIG_H
33 #include "config.h"
34 #endif
35 
36 #include <tcpdump-stdinc.h>
37 
38 #ifdef SEGSIZE
39 #undef SEGSIZE
40 #endif
41 
42 #include <stdio.h>
43 #include <string.h>
44 
45 #include "interface.h"
46 #include "addrtoname.h"
47 #include "extract.h"
48 #include "appletalk.h"
49 
50 #include "udp.h"
51 
52 #include "ip.h"
53 #ifdef INET6
54 #include "ip6.h"
55 #endif
56 #include "ipproto.h"
57 #include "rpc_auth.h"
58 #include "rpc_msg.h"
59 
60 #include "nameser.h"
61 #include "nfs.h"
62 #include "bootp.h"
63 
64 struct rtcphdr {
65 	u_int16_t rh_flags;	/* T:2 P:1 CNT:5 PT:8 */
66 	u_int16_t rh_len;	/* length of message (in words) */
67 	u_int32_t rh_ssrc;	/* synchronization src id */
68 };
69 
70 typedef struct {
71 	u_int32_t upper;	/* more significant 32 bits */
72 	u_int32_t lower;	/* less significant 32 bits */
73 } ntp64;
74 
75 /*
76  * Sender report.
77  */
78 struct rtcp_sr {
79 	ntp64 sr_ntp;		/* 64-bit ntp timestamp */
80 	u_int32_t sr_ts;	/* reference media timestamp */
81 	u_int32_t sr_np;	/* no. packets sent */
82 	u_int32_t sr_nb;	/* no. bytes sent */
83 };
84 
85 /*
86  * Receiver report.
87  * Time stamps are middle 32-bits of ntp timestamp.
88  */
89 struct rtcp_rr {
90 	u_int32_t rr_srcid;	/* sender being reported */
91 	u_int32_t rr_nl;	/* no. packets lost */
92 	u_int32_t rr_ls;	/* extended last seq number received */
93 	u_int32_t rr_dv;	/* jitter (delay variance) */
94 	u_int32_t rr_lsr;	/* orig. ts from last rr from this src  */
95 	u_int32_t rr_dlsr;	/* time from recpt of last rr to xmit time */
96 };
97 
98 /*XXX*/
99 #define RTCP_PT_SR	200
100 #define RTCP_PT_RR	201
101 #define RTCP_PT_SDES	202
102 #define 	RTCP_SDES_CNAME	1
103 #define 	RTCP_SDES_NAME	2
104 #define 	RTCP_SDES_EMAIL	3
105 #define 	RTCP_SDES_PHONE	4
106 #define 	RTCP_SDES_LOC	5
107 #define 	RTCP_SDES_TOOL	6
108 #define 	RTCP_SDES_NOTE	7
109 #define 	RTCP_SDES_PRIV	8
110 #define RTCP_PT_BYE	203
111 #define RTCP_PT_APP	204
112 
113 static void
114 vat_print(const void *hdr, register const struct udphdr *up)
115 {
116 	/* vat/vt audio */
117 	u_int ts = *(u_int16_t *)hdr;
118 	if ((ts & 0xf060) != 0) {
119 		/* probably vt */
120 		(void)printf("udp/vt %u %d / %d",
121 			     (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),
122 			     ts & 0x3ff, ts >> 10);
123 	} else {
124 		/* probably vat */
125 		u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
126 		u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
127 		printf("udp/vat %u c%d %u%s",
128 			(u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),
129 			i0 & 0xffff,
130 			i1, i0 & 0x800000? "*" : "");
131 		/* audio format */
132 		if (i0 & 0x1f0000)
133 			printf(" f%d", (i0 >> 16) & 0x1f);
134 		if (i0 & 0x3f000000)
135 			printf(" s%d", (i0 >> 24) & 0x3f);
136 	}
137 }
138 
139 static void
140 rtp_print(const void *hdr, u_int len, register const struct udphdr *up)
141 {
142 	/* rtp v1 or v2 */
143 	u_int *ip = (u_int *)hdr;
144 	u_int hasopt, hasext, contype, hasmarker;
145 	u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
146 	u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
147 	u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;
148 	const char * ptype;
149 
150 	ip += 2;
151 	len >>= 2;
152 	len -= 2;
153 	hasopt = 0;
154 	hasext = 0;
155 	if ((i0 >> 30) == 1) {
156 		/* rtp v1 */
157 		hasopt = i0 & 0x800000;
158 		contype = (i0 >> 16) & 0x3f;
159 		hasmarker = i0 & 0x400000;
160 		ptype = "rtpv1";
161 	} else {
162 		/* rtp v2 */
163 		hasext = i0 & 0x10000000;
164 		contype = (i0 >> 16) & 0x7f;
165 		hasmarker = i0 & 0x800000;
166 		dlen -= 4;
167 		ptype = "rtp";
168 		ip += 1;
169 		len -= 1;
170 	}
171 	printf("udp/%s %d c%d %s%s %d %u",
172 		ptype,
173 		dlen,
174 		contype,
175 		(hasopt || hasext)? "+" : "",
176 		hasmarker? "*" : "",
177 		i0 & 0xffff,
178 		i1);
179 	if (vflag) {
180 		printf(" %u", EXTRACT_32BITS(&((u_int *)hdr)[2]));
181 		if (hasopt) {
182 			u_int i2, optlen;
183 			do {
184 				i2 = ip[0];
185 				optlen = (i2 >> 16) & 0xff;
186 				if (optlen == 0 || optlen > len) {
187 					printf(" !opt");
188 					return;
189 				}
190 				ip += optlen;
191 				len -= optlen;
192 			} while ((int)i2 >= 0);
193 		}
194 		if (hasext) {
195 			u_int i2, extlen;
196 			i2 = ip[0];
197 			extlen = (i2 & 0xffff) + 1;
198 			if (extlen > len) {
199 				printf(" !ext");
200 				return;
201 			}
202 			ip += extlen;
203 		}
204 		if (contype == 0x1f) /*XXX H.261 */
205 			printf(" 0x%04x", ip[0] >> 16);
206 	}
207 }
208 
209 static const u_char *
210 rtcp_print(const u_char *hdr, const u_char *ep)
211 {
212 	/* rtp v2 control (rtcp) */
213 	struct rtcp_rr *rr = 0;
214 	struct rtcp_sr *sr;
215 	struct rtcphdr *rh = (struct rtcphdr *)hdr;
216 	u_int len;
217 	u_int16_t flags;
218 	int cnt;
219 	double ts, dts;
220 	if ((u_char *)(rh + 1) > ep) {
221 		printf(" [|rtcp]");
222 		return (ep);
223 	}
224 	len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
225 	flags = EXTRACT_16BITS(&rh->rh_flags);
226 	cnt = (flags >> 8) & 0x1f;
227 	switch (flags & 0xff) {
228 	case RTCP_PT_SR:
229 		sr = (struct rtcp_sr *)(rh + 1);
230 		printf(" sr");
231 		if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
232 			printf(" [%d]", len);
233 		if (vflag)
234 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
235 		if ((u_char *)(sr + 1) > ep) {
236 			printf(" [|rtcp]");
237 			return (ep);
238 		}
239 		ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
240 		    ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
241 		    4294967296.0);
242 		printf(" @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
243 		    EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb));
244 		rr = (struct rtcp_rr *)(sr + 1);
245 		break;
246 	case RTCP_PT_RR:
247 		printf(" rr");
248 		if (len != cnt * sizeof(*rr) + sizeof(*rh))
249 			printf(" [%d]", len);
250 		rr = (struct rtcp_rr *)(rh + 1);
251 		if (vflag)
252 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
253 		break;
254 	case RTCP_PT_SDES:
255 		printf(" sdes %d", len);
256 		if (vflag)
257 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
258 		cnt = 0;
259 		break;
260 	case RTCP_PT_BYE:
261 		printf(" bye %d", len);
262 		if (vflag)
263 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
264 		cnt = 0;
265 		break;
266 	default:
267 		printf(" type-0x%x %d", flags & 0xff, len);
268 		cnt = 0;
269 		break;
270 	}
271 	if (cnt > 1)
272 		printf(" c%d", cnt);
273 	while (--cnt >= 0) {
274 		if ((u_char *)(rr + 1) > ep) {
275 			printf(" [|rtcp]");
276 			return (ep);
277 		}
278 		if (vflag)
279 			printf(" %u", EXTRACT_32BITS(&rr->rr_srcid));
280 		ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.;
281 		dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.;
282 		printf(" %ul %us %uj @%.2f+%.2f",
283 		    EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff,
284 		    EXTRACT_32BITS(&rr->rr_ls),
285 		    EXTRACT_32BITS(&rr->rr_dv), ts, dts);
286 	}
287 	return (hdr + len);
288 }
289 
290 static int udp_cksum(register const struct ip *ip,
291 		     register const struct udphdr *up,
292 		     register u_int len)
293 {
294 	return (nextproto4_cksum(ip, (const u_int8_t *)(void *)up, len,
295 	    IPPROTO_UDP));
296 }
297 
298 #ifdef INET6
299 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
300 	u_int len)
301 {
302 	return (nextproto6_cksum(ip6, (const u_int8_t *)(void *)up, len,
303 	    IPPROTO_UDP));
304 }
305 #endif
306 
307 static void
308 udpipaddr_print(const struct ip *ip, int sport, int dport)
309 {
310 #ifdef INET6
311 	const struct ip6_hdr *ip6;
312 
313 	if (IP_V(ip) == 6)
314 		ip6 = (const struct ip6_hdr *)ip;
315 	else
316 		ip6 = NULL;
317 
318 	if (ip6) {
319 		if (ip6->ip6_nxt == IPPROTO_UDP) {
320 			if (sport == -1) {
321 				(void)printf("%s > %s: ",
322 					ip6addr_string(&ip6->ip6_src),
323 					ip6addr_string(&ip6->ip6_dst));
324 			} else {
325 				(void)printf("%s.%s > %s.%s: ",
326 					ip6addr_string(&ip6->ip6_src),
327 					udpport_string(sport),
328 					ip6addr_string(&ip6->ip6_dst),
329 					udpport_string(dport));
330 			}
331 		} else {
332 			if (sport != -1) {
333 				(void)printf("%s > %s: ",
334 					udpport_string(sport),
335 					udpport_string(dport));
336 			}
337 		}
338 	} else
339 #endif /*INET6*/
340 	{
341 		if (ip->ip_p == IPPROTO_UDP) {
342 			if (sport == -1) {
343 				(void)printf("%s > %s: ",
344 					ipaddr_string(&ip->ip_src),
345 					ipaddr_string(&ip->ip_dst));
346 			} else {
347 				(void)printf("%s.%s > %s.%s: ",
348 					ipaddr_string(&ip->ip_src),
349 					udpport_string(sport),
350 					ipaddr_string(&ip->ip_dst),
351 					udpport_string(dport));
352 			}
353 		} else {
354 			if (sport != -1) {
355 				(void)printf("%s > %s: ",
356 					udpport_string(sport),
357 					udpport_string(dport));
358 			}
359 		}
360 	}
361 }
362 
363 void
364 udp_print(register const u_char *bp, u_int length,
365 	  register const u_char *bp2, int fragmented)
366 {
367 	register const struct udphdr *up;
368 	register const struct ip *ip;
369 	register const u_char *cp;
370 	register const u_char *ep = bp + length;
371 	u_int16_t sport, dport, ulen;
372 #ifdef INET6
373 	register const struct ip6_hdr *ip6;
374 #endif
375 
376 	if (ep > snapend)
377 		ep = snapend;
378 	up = (struct udphdr *)bp;
379 	ip = (struct ip *)bp2;
380 #ifdef INET6
381 	if (IP_V(ip) == 6)
382 		ip6 = (struct ip6_hdr *)bp2;
383 	else
384 		ip6 = NULL;
385 #endif /*INET6*/
386 	cp = (u_char *)(up + 1);
387 	if (!TTEST(up->uh_dport)) {
388 		udpipaddr_print(ip, -1, -1);
389 		(void)printf("[|udp]");
390 		return;
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(ip, sport, dport);
398 		(void)printf("truncated-udp %d", length);
399 		return;
400 	}
401 	length -= sizeof(struct udphdr);
402 
403 	if (cp > snapend) {
404 		udpipaddr_print(ip, sport, dport);
405 		(void)printf("[|udp]");
406 		return;
407 	}
408 
409 	ulen = EXTRACT_16BITS(&up->uh_ulen);
410 	if (ulen < 8) {
411 		udpipaddr_print(ip, sport, dport);
412 		(void)printf("truncated-udplength %d", ulen);
413 		return;
414 	}
415 	if (packettype) {
416 		register struct sunrpc_msg *rp;
417 		enum sunrpc_msg_type direction;
418 
419 		switch (packettype) {
420 
421 		case PT_VAT:
422 			udpipaddr_print(ip, sport, dport);
423 			vat_print((void *)(up + 1), up);
424 			break;
425 
426 		case PT_WB:
427 			udpipaddr_print(ip, sport, dport);
428 			wb_print((void *)(up + 1), length);
429 			break;
430 
431 		case PT_RPC:
432 			rp = (struct sunrpc_msg *)(up + 1);
433 			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
434 			if (direction == SUNRPC_CALL)
435 				sunrpcrequest_print((u_char *)rp, length,
436 				    (u_char *)ip);
437 			else
438 				nfsreply_print((u_char *)rp, length,
439 				    (u_char *)ip);			/*XXX*/
440 			break;
441 
442 		case PT_RTP:
443 			udpipaddr_print(ip, sport, dport);
444 			rtp_print((void *)(up + 1), length, up);
445 			break;
446 
447 		case PT_RTCP:
448 			udpipaddr_print(ip, sport, dport);
449 			while (cp < ep)
450 				cp = rtcp_print(cp, ep);
451 			break;
452 
453 		case PT_SNMP:
454 			udpipaddr_print(ip, sport, dport);
455 			snmp_print((const u_char *)(up + 1), length);
456 			break;
457 
458 		case PT_CNFP:
459 			udpipaddr_print(ip, sport, dport);
460 			cnfp_print(cp, (const u_char *)ip);
461 			break;
462 
463 		case PT_TFTP:
464 			udpipaddr_print(ip, sport, dport);
465 			tftp_print(cp, length);
466 			break;
467 
468 		case PT_AODV:
469 			udpipaddr_print(ip, sport, dport);
470 			aodv_print((const u_char *)(up + 1), length,
471 #ifdef INET6
472 			    ip6 != NULL);
473 #else
474 			    0);
475 #endif
476 			break;
477 
478 		case PT_RADIUS:
479 			udpipaddr_print(ip, sport, dport);
480 			radius_print(cp, length);
481 			break;
482 
483 		case PT_VXLAN:
484 			udpipaddr_print(ip, sport, dport);
485 			vxlan_print((const u_char *)(up + 1), length);
486 			break;
487 
488 		case PT_PGM:
489 		case PT_PGM_ZMTP1:
490 			udpipaddr_print(ip, sport, dport);
491 			pgm_print(cp, length, bp2);
492 			break;
493 		case PT_LMP:
494 			udpipaddr_print(ip, sport, dport);
495 			lmp_print(cp, length);
496 			break;
497 		}
498 		return;
499 	}
500 
501 	if (!qflag) {
502 		register struct sunrpc_msg *rp;
503 		enum sunrpc_msg_type direction;
504 
505 		rp = (struct sunrpc_msg *)(up + 1);
506 		if (TTEST(rp->rm_direction)) {
507 			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
508 			if (dport == NFS_PORT && direction == SUNRPC_CALL) {
509 				nfsreq_print((u_char *)rp, length,
510 				    (u_char *)ip);
511 				return;
512 			}
513 			if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
514 				nfsreply_print((u_char *)rp, length,
515 				    (u_char *)ip);
516 				return;
517 			}
518 #ifdef notdef
519 			if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
520 				sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
521 				return;
522 			}
523 #endif
524 		}
525 		if (TTEST(((struct LAP *)cp)->type) &&
526 		    ((struct LAP *)cp)->type == lapDDP &&
527 		    (atalk_port(sport) || atalk_port(dport))) {
528 			if (vflag)
529 				fputs("kip ", stdout);
530 			llap_print(cp, length);
531 			return;
532 		}
533 	}
534 	udpipaddr_print(ip, sport, dport);
535 
536 	if (vflag && !Kflag && !fragmented) {
537                 /* Check the checksum, if possible. */
538                 u_int16_t sum, udp_sum;
539 
540 		/*
541 		 * XXX - do this even if vflag == 1?
542 		 * TCP does, and we do so for UDP-over-IPv6.
543 		 */
544 	        if (IP_V(ip) == 4 && (vflag > 1)) {
545 			udp_sum = EXTRACT_16BITS(&up->uh_sum);
546 			if (udp_sum == 0) {
547 				(void)printf("[no cksum] ");
548 			} else if (TTEST2(cp[0], length)) {
549 				sum = udp_cksum(ip, up, length + sizeof(struct udphdr));
550 
551 	                        if (sum != 0) {
552         	                        (void)printf("[bad udp cksum 0x%04x -> 0x%04x!] ",
553 					    udp_sum,
554 					    in_cksum_shouldbe(udp_sum, sum));
555 				} else
556 					(void)printf("[udp sum ok] ");
557 			}
558 		}
559 #ifdef INET6
560 		else if (IP_V(ip) == 6 && ip6->ip6_plen) {
561 			/* for IPv6, UDP checksum is mandatory */
562 			if (TTEST2(cp[0], length)) {
563 				sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));
564 				udp_sum = EXTRACT_16BITS(&up->uh_sum);
565 
566 	                        if (sum != 0) {
567         	                        (void)printf("[bad udp cksum 0x%04x -> 0x%04x!] ",
568 					    udp_sum,
569 					    in_cksum_shouldbe(udp_sum, sum));
570 				} else
571 					(void)printf("[udp sum ok] ");
572 			}
573 		}
574 #endif
575 	}
576 
577 	if (!qflag) {
578 #define ISPORT(p) (dport == (p) || sport == (p))
579 		if (ISPORT(NAMESERVER_PORT))
580 			ns_print((const u_char *)(up + 1), length, 0);
581 		else if (ISPORT(MULTICASTDNS_PORT))
582 			ns_print((const u_char *)(up + 1), length, 1);
583 		else if (ISPORT(TIMED_PORT))
584 			timed_print((const u_char *)(up + 1));
585 		else if (ISPORT(TFTP_PORT))
586 			tftp_print((const u_char *)(up + 1), length);
587 		else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
588 			bootp_print((const u_char *)(up + 1), length);
589 		else if (ISPORT(RIP_PORT))
590 			rip_print((const u_char *)(up + 1), length);
591 		else if (ISPORT(AODV_PORT))
592 			aodv_print((const u_char *)(up + 1), length,
593 #ifdef INET6
594 			    ip6 != NULL);
595 #else
596 			    0);
597 #endif
598 	        else if (ISPORT(ISAKMP_PORT))
599 			 isakmp_print(gndo, (const u_char *)(up + 1), length, bp2);
600   	        else if (ISPORT(ISAKMP_PORT_NATT))
601 			 isakmp_rfc3948_print(gndo, (const u_char *)(up + 1), length, bp2);
602 #if 1 /*???*/
603    	        else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
604 			isakmp_print(gndo, (const u_char *)(up + 1), length, bp2);
605 #endif
606 		else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
607 			snmp_print((const u_char *)(up + 1), length);
608 		else if (ISPORT(NTP_PORT))
609 			ntp_print((const u_char *)(up + 1), length);
610 		else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))
611 			krb_print((const void *)(up + 1));
612 		else if (ISPORT(L2TP_PORT))
613 			l2tp_print((const u_char *)(up + 1), length);
614 #ifdef TCPDUMP_DO_SMB
615 		else if (ISPORT(NETBIOS_NS_PORT))
616 			nbt_udp137_print((const u_char *)(up + 1), length);
617 		else if (ISPORT(NETBIOS_DGRAM_PORT))
618 			nbt_udp138_print((const u_char *)(up + 1), length);
619 #endif
620 		else if (dport == VAT_PORT)
621 			vat_print((const void *)(up + 1), up);
622 		else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT))
623 			zephyr_print((const void *)(up + 1), length);
624 		/*
625 		 * Since there are 10 possible ports to check, I think
626 		 * a <> test would be more efficient
627 		 */
628 		else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
629 			 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
630 			rx_print((const void *)(up + 1), length, sport, dport,
631 				 (u_char *) ip);
632 #ifdef INET6
633 		else if (ISPORT(RIPNG_PORT))
634 			ripng_print((const u_char *)(up + 1), length);
635 		else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT))
636 			dhcp6_print((const u_char *)(up + 1), length);
637 		else if (ISPORT(BABEL_PORT) || ISPORT(BABEL_PORT_OLD))
638 			babel_print((const u_char *)(up + 1), length);
639 #endif /*INET6*/
640 		/*
641 		 * Kludge in test for whiteboard packets.
642 		 */
643 		else if (dport == WB_PORT)
644 			wb_print((const void *)(up + 1), length);
645 		else if (ISPORT(CISCO_AUTORP_PORT))
646 			cisco_autorp_print((const void *)(up + 1), length);
647 		else if (ISPORT(RADIUS_PORT) ||
648 			 ISPORT(RADIUS_NEW_PORT) ||
649 			 ISPORT(RADIUS_ACCOUNTING_PORT) ||
650 			 ISPORT(RADIUS_NEW_ACCOUNTING_PORT) )
651 			radius_print((const u_char *)(up+1), length);
652 		else if (dport == HSRP_PORT)
653 			hsrp_print((const u_char *)(up + 1), length);
654 		else if (ISPORT(LWRES_PORT))
655 			lwres_print((const u_char *)(up + 1), length);
656 		else if (ISPORT(LDP_PORT))
657 			ldp_print((const u_char *)(up + 1), length);
658 		else if (ISPORT(OLSR_PORT))
659 			olsr_print((const u_char *)(up + 1), length,
660 #if INET6
661 					(IP_V(ip) == 6) ? 1 : 0);
662 #else
663 					0);
664 #endif
665 		else if (ISPORT(MPLS_LSP_PING_PORT))
666 			lspping_print((const u_char *)(up + 1), length);
667 		else if (dport == BFD_CONTROL_PORT ||
668 			 dport == BFD_ECHO_PORT )
669 			bfd_print((const u_char *)(up+1), length, dport);
670                 else if (ISPORT(LMP_PORT))
671 			lmp_print((const u_char *)(up + 1), length);
672 		else if (ISPORT(VQP_PORT))
673 			vqp_print((const u_char *)(up + 1), length);
674                 else if (ISPORT(SFLOW_PORT))
675                         sflow_print((const u_char *)(up + 1), length);
676 	        else if (dport == LWAPP_CONTROL_PORT)
677 			lwapp_control_print((const u_char *)(up + 1), length, 1);
678                 else if (sport == LWAPP_CONTROL_PORT)
679                         lwapp_control_print((const u_char *)(up + 1), length, 0);
680                 else if (ISPORT(LWAPP_DATA_PORT))
681                         lwapp_data_print((const u_char *)(up + 1), length);
682                 else if (ISPORT(SIP_PORT))
683 			sip_print((const u_char *)(up + 1), length);
684                 else if (ISPORT(SYSLOG_PORT))
685 			syslog_print((const u_char *)(up + 1), length);
686                 else if (ISPORT(OTV_PORT))
687 			otv_print((const u_char *)(up + 1), length);
688                 else if (ISPORT(VXLAN_PORT))
689 			vxlan_print((const u_char *)(up + 1), length);
690 		else
691 			(void)printf("UDP, length %u",
692 			    (u_int32_t)(ulen - sizeof(*up)));
693 #undef ISPORT
694 	} else
695 		(void)printf("UDP, length %u", (u_int32_t)(ulen - sizeof(*up)));
696 }
697 
698 
699 /*
700  * Local Variables:
701  * c-style: whitesmith
702  * c-basic-offset: 8
703  * End:
704  */
705 
706