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      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[] _U_ =
     24     "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.138.2.1 2007/03/28 07:45:46 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 #include "tftp.h"
     38 
     39 #include <stdio.h>
     40 #include <string.h>
     41 
     42 #include "interface.h"
     43 #include "addrtoname.h"
     44 #include "extract.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 #include "ipproto.h"
     54 #include "rpc_auth.h"
     55 #include "rpc_msg.h"
     56 
     57 #include "nameser.h"
     58 #include "nfs.h"
     59 #include "bootp.h"
     60 
     61 struct rtcphdr {
     62 	u_int16_t rh_flags;	/* T:2 P:1 CNT:5 PT:8 */
     63 	u_int16_t rh_len;	/* length of message (in words) */
     64 	u_int32_t rh_ssrc;	/* synchronization src id */
     65 };
     66 
     67 typedef struct {
     68 	u_int32_t upper;	/* more significant 32 bits */
     69 	u_int32_t lower;	/* less significant 32 bits */
     70 } ntp64;
     71 
     72 /*
     73  * Sender report.
     74  */
     75 struct rtcp_sr {
     76 	ntp64 sr_ntp;		/* 64-bit ntp timestamp */
     77 	u_int32_t sr_ts;	/* reference media timestamp */
     78 	u_int32_t sr_np;	/* no. packets sent */
     79 	u_int32_t sr_nb;	/* no. bytes sent */
     80 };
     81 
     82 /*
     83  * Receiver report.
     84  * Time stamps are middle 32-bits of ntp timestamp.
     85  */
     86 struct rtcp_rr {
     87 	u_int32_t rr_srcid;	/* sender being reported */
     88 	u_int32_t rr_nl;	/* no. packets lost */
     89 	u_int32_t rr_ls;	/* extended last seq number received */
     90 	u_int32_t rr_dv;	/* jitter (delay variance) */
     91 	u_int32_t rr_lsr;	/* orig. ts from last rr from this src  */
     92 	u_int32_t rr_dlsr;	/* time from recpt of last rr to xmit time */
     93 };
     94 
     95 /*XXX*/
     96 #define RTCP_PT_SR	200
     97 #define RTCP_PT_RR	201
     98 #define RTCP_PT_SDES	202
     99 #define 	RTCP_SDES_CNAME	1
    100 #define 	RTCP_SDES_NAME	2
    101 #define 	RTCP_SDES_EMAIL	3
    102 #define 	RTCP_SDES_PHONE	4
    103 #define 	RTCP_SDES_LOC	5
    104 #define 	RTCP_SDES_TOOL	6
    105 #define 	RTCP_SDES_NOTE	7
    106 #define 	RTCP_SDES_PRIV	8
    107 #define RTCP_PT_BYE	203
    108 #define RTCP_PT_APP	204
    109 
    110 static void
    111 vat_print(const void *hdr, register const struct udphdr *up)
    112 {
    113 	/* vat/vt audio */
    114 	u_int ts = *(u_int16_t *)hdr;
    115 	if ((ts & 0xf060) != 0) {
    116 		/* probably vt */
    117 		(void)printf("udp/vt %u %d / %d",
    118 			     (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),
    119 			     ts & 0x3ff, ts >> 10);
    120 	} else {
    121 		/* probably vat */
    122 		u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
    123 		u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
    124 		printf("udp/vat %u c%d %u%s",
    125 			(u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),
    126 			i0 & 0xffff,
    127 			i1, i0 & 0x800000? "*" : "");
    128 		/* audio format */
    129 		if (i0 & 0x1f0000)
    130 			printf(" f%d", (i0 >> 16) & 0x1f);
    131 		if (i0 & 0x3f000000)
    132 			printf(" s%d", (i0 >> 24) & 0x3f);
    133 	}
    134 }
    135 
    136 static void
    137 rtp_print(const void *hdr, u_int len, register const struct udphdr *up)
    138 {
    139 	/* rtp v1 or v2 */
    140 	u_int *ip = (u_int *)hdr;
    141 	u_int hasopt, hasext, contype, hasmarker;
    142 	u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
    143 	u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
    144 	u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;
    145 	const char * ptype;
    146 
    147 	ip += 2;
    148 	len >>= 2;
    149 	len -= 2;
    150 	hasopt = 0;
    151 	hasext = 0;
    152 	if ((i0 >> 30) == 1) {
    153 		/* rtp v1 */
    154 		hasopt = i0 & 0x800000;
    155 		contype = (i0 >> 16) & 0x3f;
    156 		hasmarker = i0 & 0x400000;
    157 		ptype = "rtpv1";
    158 	} else {
    159 		/* rtp v2 */
    160 		hasext = i0 & 0x10000000;
    161 		contype = (i0 >> 16) & 0x7f;
    162 		hasmarker = i0 & 0x800000;
    163 		dlen -= 4;
    164 		ptype = "rtp";
    165 		ip += 1;
    166 		len -= 1;
    167 	}
    168 	printf("udp/%s %d c%d %s%s %d %u",
    169 		ptype,
    170 		dlen,
    171 		contype,
    172 		(hasopt || hasext)? "+" : "",
    173 		hasmarker? "*" : "",
    174 		i0 & 0xffff,
    175 		i1);
    176 	if (vflag) {
    177 		printf(" %u", EXTRACT_32BITS(&((u_int *)hdr)[2]));
    178 		if (hasopt) {
    179 			u_int i2, optlen;
    180 			do {
    181 				i2 = ip[0];
    182 				optlen = (i2 >> 16) & 0xff;
    183 				if (optlen == 0 || optlen > len) {
    184 					printf(" !opt");
    185 					return;
    186 				}
    187 				ip += optlen;
    188 				len -= optlen;
    189 			} while ((int)i2 >= 0);
    190 		}
    191 		if (hasext) {
    192 			u_int i2, extlen;
    193 			i2 = ip[0];
    194 			extlen = (i2 & 0xffff) + 1;
    195 			if (extlen > len) {
    196 				printf(" !ext");
    197 				return;
    198 			}
    199 			ip += extlen;
    200 		}
    201 		if (contype == 0x1f) /*XXX H.261 */
    202 			printf(" 0x%04x", ip[0] >> 16);
    203 	}
    204 }
    205 
    206 static const u_char *
    207 rtcp_print(const u_char *hdr, const u_char *ep)
    208 {
    209 	/* rtp v2 control (rtcp) */
    210 	struct rtcp_rr *rr = 0;
    211 	struct rtcp_sr *sr;
    212 	struct rtcphdr *rh = (struct rtcphdr *)hdr;
    213 	u_int len;
    214 	u_int16_t flags;
    215 	int cnt;
    216 	double ts, dts;
    217 	if ((u_char *)(rh + 1) > ep) {
    218 		printf(" [|rtcp]");
    219 		return (ep);
    220 	}
    221 	len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
    222 	flags = EXTRACT_16BITS(&rh->rh_flags);
    223 	cnt = (flags >> 8) & 0x1f;
    224 	switch (flags & 0xff) {
    225 	case RTCP_PT_SR:
    226 		sr = (struct rtcp_sr *)(rh + 1);
    227 		printf(" sr");
    228 		if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
    229 			printf(" [%d]", len);
    230 		if (vflag)
    231 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
    232 		if ((u_char *)(sr + 1) > ep) {
    233 			printf(" [|rtcp]");
    234 			return (ep);
    235 		}
    236 		ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
    237 		    ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
    238 		    4294967296.0);
    239 		printf(" @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
    240 		    EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb));
    241 		rr = (struct rtcp_rr *)(sr + 1);
    242 		break;
    243 	case RTCP_PT_RR:
    244 		printf(" rr");
    245 		if (len != cnt * sizeof(*rr) + sizeof(*rh))
    246 			printf(" [%d]", len);
    247 		rr = (struct rtcp_rr *)(rh + 1);
    248 		if (vflag)
    249 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
    250 		break;
    251 	case RTCP_PT_SDES:
    252 		printf(" sdes %d", len);
    253 		if (vflag)
    254 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
    255 		cnt = 0;
    256 		break;
    257 	case RTCP_PT_BYE:
    258 		printf(" bye %d", len);
    259 		if (vflag)
    260 			printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc));
    261 		cnt = 0;
    262 		break;
    263 	default:
    264 		printf(" type-0x%x %d", flags & 0xff, len);
    265 		cnt = 0;
    266 		break;
    267 	}
    268 	if (cnt > 1)
    269 		printf(" c%d", cnt);
    270 	while (--cnt >= 0) {
    271 		if ((u_char *)(rr + 1) > ep) {
    272 			printf(" [|rtcp]");
    273 			return (ep);
    274 		}
    275 		if (vflag)
    276 			printf(" %u", EXTRACT_32BITS(&rr->rr_srcid));
    277 		ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.;
    278 		dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.;
    279 		printf(" %ul %us %uj @%.2f+%.2f",
    280 		    EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff,
    281 		    EXTRACT_32BITS(&rr->rr_ls),
    282 		    EXTRACT_32BITS(&rr->rr_dv), ts, dts);
    283 	}
    284 	return (hdr + len);
    285 }
    286 
    287 static int udp_cksum(register const struct ip *ip,
    288 		     register const struct udphdr *up,
    289 		     register u_int len)
    290 {
    291 	union phu {
    292 		struct phdr {
    293 			u_int32_t src;
    294 			u_int32_t dst;
    295 			u_char mbz;
    296 			u_char proto;
    297 			u_int16_t len;
    298 		} ph;
    299 		u_int16_t pa[6];
    300 	} phu;
    301 	register const u_int16_t *sp;
    302 
    303 	/* pseudo-header.. */
    304 	phu.ph.len = htons((u_int16_t)len);
    305 	phu.ph.mbz = 0;
    306 	phu.ph.proto = IPPROTO_UDP;
    307 	memcpy(&phu.ph.src, &ip->ip_src.s_addr, sizeof(u_int32_t));
    308 	if (IP_HL(ip) == 5)
    309 		memcpy(&phu.ph.dst, &ip->ip_dst.s_addr, sizeof(u_int32_t));
    310 	else
    311 		phu.ph.dst = ip_finddst(ip);
    312 
    313 	sp = &phu.pa[0];
    314 	return in_cksum((u_short *)up, len,
    315 			sp[0]+sp[1]+sp[2]+sp[3]+sp[4]+sp[5]);
    316 }
    317 
    318 #ifdef INET6
    319 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
    320 	u_int len)
    321 {
    322 	size_t i;
    323 	register const u_int16_t *sp;
    324 	u_int32_t sum;
    325 	union {
    326 		struct {
    327 			struct in6_addr ph_src;
    328 			struct in6_addr ph_dst;
    329 			u_int32_t	ph_len;
    330 			u_int8_t	ph_zero[3];
    331 			u_int8_t	ph_nxt;
    332 		} ph;
    333 		u_int16_t pa[20];
    334 	} phu;
    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(len);
    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 < (len & ~1); i += 2)
    350 		sum += *sp++;
    351 
    352 	if (len & 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 static void
    364 udpipaddr_print(const struct ip *ip, int sport, int dport)
    365 {
    366 #ifdef INET6
    367 	const struct ip6_hdr *ip6;
    368 
    369 	if (IP_V(ip) == 6)
    370 		ip6 = (const struct ip6_hdr *)ip;
    371 	else
    372 		ip6 = NULL;
    373 
    374 	if (ip6) {
    375 		if (ip6->ip6_nxt == IPPROTO_UDP) {
    376 			if (sport == -1) {
    377 				(void)printf("%s > %s: ",
    378 					ip6addr_string(&ip6->ip6_src),
    379 					ip6addr_string(&ip6->ip6_dst));
    380 			} else {
    381 				(void)printf("%s.%s > %s.%s: ",
    382 					ip6addr_string(&ip6->ip6_src),
    383 					udpport_string(sport),
    384 					ip6addr_string(&ip6->ip6_dst),
    385 					udpport_string(dport));
    386 			}
    387 		} else {
    388 			if (sport != -1) {
    389 				(void)printf("%s > %s: ",
    390 					udpport_string(sport),
    391 					udpport_string(dport));
    392 			}
    393 		}
    394 	} else
    395 #endif /*INET6*/
    396 	{
    397 		if (ip->ip_p == IPPROTO_UDP) {
    398 			if (sport == -1) {
    399 				(void)printf("%s > %s: ",
    400 					ipaddr_string(&ip->ip_src),
    401 					ipaddr_string(&ip->ip_dst));
    402 			} else {
    403 				(void)printf("%s.%s > %s.%s: ",
    404 					ipaddr_string(&ip->ip_src),
    405 					udpport_string(sport),
    406 					ipaddr_string(&ip->ip_dst),
    407 					udpport_string(dport));
    408 			}
    409 		} else {
    410 			if (sport != -1) {
    411 				(void)printf("%s > %s: ",
    412 					udpport_string(sport),
    413 					udpport_string(dport));
    414 			}
    415 		}
    416 	}
    417 }
    418 
    419 void
    420 udp_print(register const u_char *bp, u_int length,
    421 	  register const u_char *bp2, int fragmented)
    422 {
    423 	register const struct udphdr *up;
    424 	register const struct ip *ip;
    425 	register const u_char *cp;
    426 	register const u_char *ep = bp + length;
    427 	u_int16_t sport, dport, ulen;
    428 #ifdef INET6
    429 	register const struct ip6_hdr *ip6;
    430 #endif
    431 
    432 	if (ep > snapend)
    433 		ep = snapend;
    434 	up = (struct udphdr *)bp;
    435 	ip = (struct ip *)bp2;
    436 #ifdef INET6
    437 	if (IP_V(ip) == 6)
    438 		ip6 = (struct ip6_hdr *)bp2;
    439 	else
    440 		ip6 = NULL;
    441 #endif /*INET6*/
    442 	cp = (u_char *)(up + 1);
    443 	if (!TTEST(up->uh_dport)) {
    444 		udpipaddr_print(ip, -1, -1);
    445 		(void)printf("[|udp]");
    446 		return;
    447 	}
    448 
    449 	sport = EXTRACT_16BITS(&up->uh_sport);
    450 	dport = EXTRACT_16BITS(&up->uh_dport);
    451 
    452 	if (length < sizeof(struct udphdr)) {
    453 		udpipaddr_print(ip, sport, dport);
    454 		(void)printf("truncated-udp %d", length);
    455 		return;
    456 	}
    457 	length -= sizeof(struct udphdr);
    458 
    459 	if (cp > snapend) {
    460 		udpipaddr_print(ip, sport, dport);
    461 		(void)printf("[|udp]");
    462 		return;
    463 	}
    464 
    465 	ulen = EXTRACT_16BITS(&up->uh_ulen);
    466 	if (ulen < 8) {
    467 		udpipaddr_print(ip, sport, dport);
    468 		(void)printf("truncated-udplength %d", ulen);
    469 		return;
    470 	}
    471 	if (packettype) {
    472 		register struct sunrpc_msg *rp;
    473 		enum sunrpc_msg_type direction;
    474 
    475 		switch (packettype) {
    476 
    477 		case PT_VAT:
    478 			udpipaddr_print(ip, sport, dport);
    479 			vat_print((void *)(up + 1), up);
    480 			break;
    481 
    482 		case PT_WB:
    483 			udpipaddr_print(ip, sport, dport);
    484 			wb_print((void *)(up + 1), length);
    485 			break;
    486 
    487 		case PT_RPC:
    488 			rp = (struct sunrpc_msg *)(up + 1);
    489 			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
    490 			if (direction == SUNRPC_CALL)
    491 				sunrpcrequest_print((u_char *)rp, length,
    492 				    (u_char *)ip);
    493 			else
    494 				nfsreply_print((u_char *)rp, length,
    495 				    (u_char *)ip);			/*XXX*/
    496 			break;
    497 
    498 		case PT_RTP:
    499 			udpipaddr_print(ip, sport, dport);
    500 			rtp_print((void *)(up + 1), length, up);
    501 			break;
    502 
    503 		case PT_RTCP:
    504 			udpipaddr_print(ip, sport, dport);
    505 			while (cp < ep)
    506 				cp = rtcp_print(cp, ep);
    507 			break;
    508 
    509 		case PT_SNMP:
    510 			udpipaddr_print(ip, sport, dport);
    511 			snmp_print((const u_char *)(up + 1), length);
    512 			break;
    513 
    514 		case PT_CNFP:
    515 			udpipaddr_print(ip, sport, dport);
    516 			cnfp_print(cp, (const u_char *)ip);
    517 			break;
    518 
    519 		case PT_TFTP:
    520 			udpipaddr_print(ip, sport, dport);
    521 			tftp_print(cp, length);
    522 			break;
    523 
    524 		case PT_AODV:
    525 			udpipaddr_print(ip, sport, dport);
    526 			aodv_print((const u_char *)(up + 1), length,
    527 #ifdef INET6
    528 			    ip6 != NULL);
    529 #else
    530 			    0);
    531 #endif
    532 			break;
    533 		}
    534 		return;
    535 	}
    536 
    537 	if (!qflag) {
    538 		register struct sunrpc_msg *rp;
    539 		enum sunrpc_msg_type direction;
    540 
    541 		rp = (struct sunrpc_msg *)(up + 1);
    542 		if (TTEST(rp->rm_direction)) {
    543 			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
    544 			if (dport == NFS_PORT && direction == SUNRPC_CALL) {
    545 				nfsreq_print((u_char *)rp, length,
    546 				    (u_char *)ip);
    547 				return;
    548 			}
    549 			if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
    550 				nfsreply_print((u_char *)rp, length,
    551 				    (u_char *)ip);
    552 				return;
    553 			}
    554 #ifdef notdef
    555 			if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
    556 				sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
    557 				return;
    558 			}
    559 #endif
    560 		}
    561 		if (TTEST(((struct LAP *)cp)->type) &&
    562 		    ((struct LAP *)cp)->type == lapDDP &&
    563 		    (atalk_port(sport) || atalk_port(dport))) {
    564 			if (vflag)
    565 				fputs("kip ", stdout);
    566 			llap_print(cp, length);
    567 			return;
    568 		}
    569 	}
    570 	udpipaddr_print(ip, sport, dport);
    571 
    572 	if (IP_V(ip) == 4 && (vflag > 1) && !fragmented) {
    573 		int sum = up->uh_sum;
    574 		if (sum == 0) {
    575 			(void)printf("[no cksum] ");
    576 		} else if (TTEST2(cp[0], length)) {
    577 			sum = udp_cksum(ip, up, length + sizeof(struct udphdr));
    578 			if (sum != 0)
    579 				(void)printf("[bad udp cksum %x!] ", sum);
    580 			else
    581 				(void)printf("[udp sum ok] ");
    582 		}
    583 	}
    584 #ifdef INET6
    585 	if (IP_V(ip) == 6 && ip6->ip6_plen && vflag && !fragmented) {
    586 		int sum = up->uh_sum;
    587 		/* for IPv6, UDP checksum is mandatory */
    588 		if (TTEST2(cp[0], length)) {
    589 			sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));
    590 			if (sum != 0)
    591 				(void)printf("[bad udp cksum %x!] ", sum);
    592 			else
    593 				(void)printf("[udp sum ok] ");
    594 		}
    595 	}
    596 #endif
    597 
    598 	if (!qflag) {
    599 #define ISPORT(p) (dport == (p) || sport == (p))
    600 		if (ISPORT(NAMESERVER_PORT))
    601 			ns_print((const u_char *)(up + 1), length, 0);
    602 		else if (ISPORT(MULTICASTDNS_PORT))
    603 			ns_print((const u_char *)(up + 1), length, 1);
    604 		else if (ISPORT(TIMED_PORT))
    605 			timed_print((const u_char *)(up + 1));
    606 		else if (ISPORT(TFTP_PORT))
    607 			tftp_print((const u_char *)(up + 1), length);
    608 		else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
    609 			bootp_print((const u_char *)(up + 1), length);
    610 		else if (ISPORT(RIP_PORT))
    611 			rip_print((const u_char *)(up + 1), length);
    612 		else if (ISPORT(AODV_PORT))
    613 			aodv_print((const u_char *)(up + 1), length,
    614 #ifdef INET6
    615 			    ip6 != NULL);
    616 #else
    617 			    0);
    618 #endif
    619 	        else if (ISPORT(ISAKMP_PORT))
    620 			 isakmp_print(gndo, (const u_char *)(up + 1), length, bp2);
    621   	        else if (ISPORT(ISAKMP_PORT_NATT))
    622 			 isakmp_rfc3948_print(gndo, (const u_char *)(up + 1), length, bp2);
    623 #if 1 /*???*/
    624    	        else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
    625 			isakmp_print(gndo, (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 		}
    659 #endif /*INET6*/
    660 		/*
    661 		 * Kludge in test for whiteboard packets.
    662 		 */
    663 		else if (dport == 4567)
    664 			wb_print((const void *)(up + 1), length);
    665 		else if (ISPORT(CISCO_AUTORP_PORT))
    666 			cisco_autorp_print((const void *)(up + 1), length);
    667 		else if (ISPORT(RADIUS_PORT) ||
    668 			 ISPORT(RADIUS_NEW_PORT) ||
    669 			 ISPORT(RADIUS_ACCOUNTING_PORT) ||
    670 			 ISPORT(RADIUS_NEW_ACCOUNTING_PORT) )
    671 			radius_print((const u_char *)(up+1), length);
    672 		else if (dport == HSRP_PORT)
    673 			hsrp_print((const u_char *)(up + 1), length);
    674 		else if (ISPORT(LWRES_PORT))
    675 			lwres_print((const u_char *)(up + 1), length);
    676                 else if (ISPORT(LDP_PORT))
    677 			ldp_print((const u_char *)(up + 1), length);
    678                 else if (ISPORT(OLSR_PORT))
    679 			olsr_print((const u_char *)(up + 1), length);
    680                 else if (ISPORT(MPLS_LSP_PING_PORT))
    681 			lspping_print((const u_char *)(up + 1), length);
    682 		else if (dport == BFD_CONTROL_PORT ||
    683 			 dport == BFD_ECHO_PORT )
    684 			bfd_print((const u_char *)(up+1), length, dport);
    685                 else if (ISPORT(LMP_PORT))
    686 			lmp_print((const u_char *)(up + 1), length);
    687                 else if (ISPORT(SIP_PORT))
    688 			sip_print((const u_char *)(up + 1), length);
    689                 else if (ISPORT(SYSLOG_PORT))
    690 			syslog_print((const u_char *)(up + 1), length);
    691 		else
    692 			(void)printf("UDP, length %u",
    693 			    (u_int32_t)(ulen - sizeof(*up)));
    694 #undef ISPORT
    695 	} else
    696 		(void)printf("UDP, length %u", (u_int32_t)(ulen - sizeof(*up)));
    697 }
    698 
    699 
    700 /*
    701  * Local Variables:
    702  * c-style: whitesmith
    703  * c-basic-offset: 8
    704  * End:
    705  */
    706