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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 #define NETDISSECT_REWORKED
     23 #ifdef HAVE_CONFIG_H
     24 #include "config.h"
     25 #endif
     26 
     27 #include <tcpdump-stdinc.h>
     28 
     29 #include "interface.h"
     30 #include "addrtoname.h"
     31 #include "extract.h"
     32 #include "appletalk.h"
     33 
     34 #include "udp.h"
     35 
     36 #include "ip.h"
     37 #ifdef INET6
     38 #include "ip6.h"
     39 #endif
     40 #include "ipproto.h"
     41 #include "rpc_auth.h"
     42 #include "rpc_msg.h"
     43 
     44 #include "nameser.h"
     45 #include "nfs.h"
     46 
     47 struct rtcphdr {
     48 	uint16_t rh_flags;	/* T:2 P:1 CNT:5 PT:8 */
     49 	uint16_t rh_len;	/* length of message (in words) */
     50 	uint32_t rh_ssrc;	/* synchronization src id */
     51 };
     52 
     53 typedef struct {
     54 	uint32_t upper;	/* more significant 32 bits */
     55 	uint32_t lower;	/* less significant 32 bits */
     56 } ntp64;
     57 
     58 /*
     59  * Sender report.
     60  */
     61 struct rtcp_sr {
     62 	ntp64 sr_ntp;		/* 64-bit ntp timestamp */
     63 	uint32_t sr_ts;	/* reference media timestamp */
     64 	uint32_t sr_np;	/* no. packets sent */
     65 	uint32_t sr_nb;	/* no. bytes sent */
     66 };
     67 
     68 /*
     69  * Receiver report.
     70  * Time stamps are middle 32-bits of ntp timestamp.
     71  */
     72 struct rtcp_rr {
     73 	uint32_t rr_srcid;	/* sender being reported */
     74 	uint32_t rr_nl;	/* no. packets lost */
     75 	uint32_t rr_ls;	/* extended last seq number received */
     76 	uint32_t rr_dv;	/* jitter (delay variance) */
     77 	uint32_t rr_lsr;	/* orig. ts from last rr from this src  */
     78 	uint32_t rr_dlsr;	/* time from recpt of last rr to xmit time */
     79 };
     80 
     81 /*XXX*/
     82 #define RTCP_PT_SR	200
     83 #define RTCP_PT_RR	201
     84 #define RTCP_PT_SDES	202
     85 #define 	RTCP_SDES_CNAME	1
     86 #define 	RTCP_SDES_NAME	2
     87 #define 	RTCP_SDES_EMAIL	3
     88 #define 	RTCP_SDES_PHONE	4
     89 #define 	RTCP_SDES_LOC	5
     90 #define 	RTCP_SDES_TOOL	6
     91 #define 	RTCP_SDES_NOTE	7
     92 #define 	RTCP_SDES_PRIV	8
     93 #define RTCP_PT_BYE	203
     94 #define RTCP_PT_APP	204
     95 
     96 static void
     97 vat_print(netdissect_options *ndo, const void *hdr, register const struct udphdr *up)
     98 {
     99 	/* vat/vt audio */
    100 	u_int ts = *(uint16_t *)hdr;
    101 	if ((ts & 0xf060) != 0) {
    102 		/* probably vt */
    103 		ND_PRINT((ndo, "udp/vt %u %d / %d",
    104 			     (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),
    105 			     ts & 0x3ff, ts >> 10));
    106 	} else {
    107 		/* probably vat */
    108 		uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
    109 		uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
    110 		ND_PRINT((ndo, "udp/vat %u c%d %u%s",
    111 			(uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),
    112 			i0 & 0xffff,
    113 			i1, i0 & 0x800000? "*" : ""));
    114 		/* audio format */
    115 		if (i0 & 0x1f0000)
    116 			ND_PRINT((ndo, " f%d", (i0 >> 16) & 0x1f));
    117 		if (i0 & 0x3f000000)
    118 			ND_PRINT((ndo, " s%d", (i0 >> 24) & 0x3f));
    119 	}
    120 }
    121 
    122 static void
    123 rtp_print(netdissect_options *ndo, const void *hdr, u_int len,
    124           register const struct udphdr *up)
    125 {
    126 	/* rtp v1 or v2 */
    127 	u_int *ip = (u_int *)hdr;
    128 	u_int hasopt, hasext, contype, hasmarker;
    129 	uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
    130 	uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
    131 	u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;
    132 	const char * ptype;
    133 
    134 	ip += 2;
    135 	len >>= 2;
    136 	len -= 2;
    137 	hasopt = 0;
    138 	hasext = 0;
    139 	if ((i0 >> 30) == 1) {
    140 		/* rtp v1 */
    141 		hasopt = i0 & 0x800000;
    142 		contype = (i0 >> 16) & 0x3f;
    143 		hasmarker = i0 & 0x400000;
    144 		ptype = "rtpv1";
    145 	} else {
    146 		/* rtp v2 */
    147 		hasext = i0 & 0x10000000;
    148 		contype = (i0 >> 16) & 0x7f;
    149 		hasmarker = i0 & 0x800000;
    150 		dlen -= 4;
    151 		ptype = "rtp";
    152 		ip += 1;
    153 		len -= 1;
    154 	}
    155 	ND_PRINT((ndo, "udp/%s %d c%d %s%s %d %u",
    156 		ptype,
    157 		dlen,
    158 		contype,
    159 		(hasopt || hasext)? "+" : "",
    160 		hasmarker? "*" : "",
    161 		i0 & 0xffff,
    162 		i1));
    163 	if (ndo->ndo_vflag) {
    164 		ND_PRINT((ndo, " %u", EXTRACT_32BITS(&((u_int *)hdr)[2])));
    165 		if (hasopt) {
    166 			u_int i2, optlen;
    167 			do {
    168 				i2 = ip[0];
    169 				optlen = (i2 >> 16) & 0xff;
    170 				if (optlen == 0 || optlen > len) {
    171 					ND_PRINT((ndo, " !opt"));
    172 					return;
    173 				}
    174 				ip += optlen;
    175 				len -= optlen;
    176 			} while ((int)i2 >= 0);
    177 		}
    178 		if (hasext) {
    179 			u_int i2, extlen;
    180 			i2 = ip[0];
    181 			extlen = (i2 & 0xffff) + 1;
    182 			if (extlen > len) {
    183 				ND_PRINT((ndo, " !ext"));
    184 				return;
    185 			}
    186 			ip += extlen;
    187 		}
    188 		if (contype == 0x1f) /*XXX H.261 */
    189 			ND_PRINT((ndo, " 0x%04x", ip[0] >> 16));
    190 	}
    191 }
    192 
    193 static const u_char *
    194 rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)
    195 {
    196 	/* rtp v2 control (rtcp) */
    197 	struct rtcp_rr *rr = 0;
    198 	struct rtcp_sr *sr;
    199 	struct rtcphdr *rh = (struct rtcphdr *)hdr;
    200 	u_int len;
    201 	uint16_t flags;
    202 	int cnt;
    203 	double ts, dts;
    204 	if ((u_char *)(rh + 1) > ep) {
    205 		ND_PRINT((ndo, " [|rtcp]"));
    206 		return (ep);
    207 	}
    208 	len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
    209 	flags = EXTRACT_16BITS(&rh->rh_flags);
    210 	cnt = (flags >> 8) & 0x1f;
    211 	switch (flags & 0xff) {
    212 	case RTCP_PT_SR:
    213 		sr = (struct rtcp_sr *)(rh + 1);
    214 		ND_PRINT((ndo, " sr"));
    215 		if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
    216 			ND_PRINT((ndo, " [%d]", len));
    217 		if (ndo->ndo_vflag)
    218 			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
    219 		if ((u_char *)(sr + 1) > ep) {
    220 			ND_PRINT((ndo, " [|rtcp]"));
    221 			return (ep);
    222 		}
    223 		ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
    224 		    ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
    225 		    4294967296.0);
    226 		ND_PRINT((ndo, " @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
    227 		    EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb)));
    228 		rr = (struct rtcp_rr *)(sr + 1);
    229 		break;
    230 	case RTCP_PT_RR:
    231 		ND_PRINT((ndo, " rr"));
    232 		if (len != cnt * sizeof(*rr) + sizeof(*rh))
    233 			ND_PRINT((ndo, " [%d]", len));
    234 		rr = (struct rtcp_rr *)(rh + 1);
    235 		if (ndo->ndo_vflag)
    236 			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
    237 		break;
    238 	case RTCP_PT_SDES:
    239 		ND_PRINT((ndo, " sdes %d", len));
    240 		if (ndo->ndo_vflag)
    241 			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
    242 		cnt = 0;
    243 		break;
    244 	case RTCP_PT_BYE:
    245 		ND_PRINT((ndo, " bye %d", len));
    246 		if (ndo->ndo_vflag)
    247 			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
    248 		cnt = 0;
    249 		break;
    250 	default:
    251 		ND_PRINT((ndo, " type-0x%x %d", flags & 0xff, len));
    252 		cnt = 0;
    253 		break;
    254 	}
    255 	if (cnt > 1)
    256 		ND_PRINT((ndo, " c%d", cnt));
    257 	while (--cnt >= 0) {
    258 		if ((u_char *)(rr + 1) > ep) {
    259 			ND_PRINT((ndo, " [|rtcp]"));
    260 			return (ep);
    261 		}
    262 		if (ndo->ndo_vflag)
    263 			ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rr->rr_srcid)));
    264 		ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.;
    265 		dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.;
    266 		ND_PRINT((ndo, " %ul %us %uj @%.2f+%.2f",
    267 		    EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff,
    268 		    EXTRACT_32BITS(&rr->rr_ls),
    269 		    EXTRACT_32BITS(&rr->rr_dv), ts, dts));
    270 	}
    271 	return (hdr + len);
    272 }
    273 
    274 static int udp_cksum(netdissect_options *ndo, register const struct ip *ip,
    275 		     register const struct udphdr *up,
    276 		     register u_int len)
    277 {
    278 	return nextproto4_cksum(ndo, ip, (const uint8_t *)(void *)up, len, len,
    279 				IPPROTO_UDP);
    280 }
    281 
    282 #ifdef INET6
    283 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
    284 	u_int len)
    285 {
    286 	return nextproto6_cksum(ip6, (const uint8_t *)(void *)up, len, len,
    287 	    IPPROTO_UDP);
    288 }
    289 #endif
    290 
    291 static void
    292 udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport)
    293 {
    294 #ifdef INET6
    295 	const struct ip6_hdr *ip6;
    296 
    297 	if (IP_V(ip) == 6)
    298 		ip6 = (const struct ip6_hdr *)ip;
    299 	else
    300 		ip6 = NULL;
    301 
    302 	if (ip6) {
    303 		if (ip6->ip6_nxt == IPPROTO_UDP) {
    304 			if (sport == -1) {
    305 				ND_PRINT((ndo, "%s > %s: ",
    306 					ip6addr_string(ndo, &ip6->ip6_src),
    307 					ip6addr_string(ndo, &ip6->ip6_dst)));
    308 			} else {
    309 				ND_PRINT((ndo, "%s.%s > %s.%s: ",
    310 					ip6addr_string(ndo, &ip6->ip6_src),
    311 					udpport_string(sport),
    312 					ip6addr_string(ndo, &ip6->ip6_dst),
    313 					udpport_string(dport)));
    314 			}
    315 		} else {
    316 			if (sport != -1) {
    317 				ND_PRINT((ndo, "%s > %s: ",
    318 					udpport_string(sport),
    319 					udpport_string(dport)));
    320 			}
    321 		}
    322 	} else
    323 #endif /*INET6*/
    324 	{
    325 		if (ip->ip_p == IPPROTO_UDP) {
    326 			if (sport == -1) {
    327 				ND_PRINT((ndo, "%s > %s: ",
    328 					ipaddr_string(ndo, &ip->ip_src),
    329 					ipaddr_string(ndo, &ip->ip_dst)));
    330 			} else {
    331 				ND_PRINT((ndo, "%s.%s > %s.%s: ",
    332 					ipaddr_string(ndo, &ip->ip_src),
    333 					udpport_string(sport),
    334 					ipaddr_string(ndo, &ip->ip_dst),
    335 					udpport_string(dport)));
    336 			}
    337 		} else {
    338 			if (sport != -1) {
    339 				ND_PRINT((ndo, "%s > %s: ",
    340 					udpport_string(sport),
    341 					udpport_string(dport)));
    342 			}
    343 		}
    344 	}
    345 }
    346 
    347 void
    348 udp_print(netdissect_options *ndo, register const u_char *bp, u_int length,
    349 	  register const u_char *bp2, int fragmented)
    350 {
    351 	register const struct udphdr *up;
    352 	register const struct ip *ip;
    353 	register const u_char *cp;
    354 	register const u_char *ep = bp + length;
    355 	uint16_t sport, dport, ulen;
    356 #ifdef INET6
    357 	register const struct ip6_hdr *ip6;
    358 #endif
    359 
    360 	if (ep > ndo->ndo_snapend)
    361 		ep = ndo->ndo_snapend;
    362 	up = (struct udphdr *)bp;
    363 	ip = (struct ip *)bp2;
    364 #ifdef INET6
    365 	if (IP_V(ip) == 6)
    366 		ip6 = (struct ip6_hdr *)bp2;
    367 	else
    368 		ip6 = NULL;
    369 #endif /*INET6*/
    370 	if (!ND_TTEST(up->uh_dport)) {
    371 		udpipaddr_print(ndo, ip, -1, -1);
    372 		ND_PRINT((ndo, "[|udp]"));
    373 		return;
    374 	}
    375 
    376 	sport = EXTRACT_16BITS(&up->uh_sport);
    377 	dport = EXTRACT_16BITS(&up->uh_dport);
    378 
    379 	if (length < sizeof(struct udphdr)) {
    380 		udpipaddr_print(ndo, ip, sport, dport);
    381 		ND_PRINT((ndo, "truncated-udp %d", length));
    382 		return;
    383 	}
    384 	ulen = EXTRACT_16BITS(&up->uh_ulen);
    385 	if (ulen < sizeof(struct udphdr)) {
    386 		udpipaddr_print(ndo, ip, sport, dport);
    387 		ND_PRINT((ndo, "truncated-udplength %d", ulen));
    388 		return;
    389 	}
    390 	ulen -= sizeof(struct udphdr);
    391 	length -= sizeof(struct udphdr);
    392 	if (ulen < length)
    393 		length = ulen;
    394 
    395 	cp = (u_char *)(up + 1);
    396 	if (cp > ndo->ndo_snapend) {
    397 		udpipaddr_print(ndo, ip, sport, dport);
    398 		ND_PRINT((ndo, "[|udp]"));
    399 		return;
    400 	}
    401 
    402 	if (ndo->ndo_packettype) {
    403 		register struct sunrpc_msg *rp;
    404 		enum sunrpc_msg_type direction;
    405 
    406 		switch (ndo->ndo_packettype) {
    407 
    408 		case PT_VAT:
    409 			udpipaddr_print(ndo, ip, sport, dport);
    410 			vat_print(ndo, (void *)(up + 1), up);
    411 			break;
    412 
    413 		case PT_WB:
    414 			udpipaddr_print(ndo, ip, sport, dport);
    415 			wb_print(ndo, (void *)(up + 1), length);
    416 			break;
    417 
    418 		case PT_RPC:
    419 			rp = (struct sunrpc_msg *)(up + 1);
    420 			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
    421 			if (direction == SUNRPC_CALL)
    422 				sunrpcrequest_print(ndo, (u_char *)rp, length,
    423 				    (u_char *)ip);
    424 			else
    425 				nfsreply_print(ndo, (u_char *)rp, length,
    426 				    (u_char *)ip);			/*XXX*/
    427 			break;
    428 
    429 		case PT_RTP:
    430 			udpipaddr_print(ndo, ip, sport, dport);
    431 			rtp_print(ndo, (void *)(up + 1), length, up);
    432 			break;
    433 
    434 		case PT_RTCP:
    435 			udpipaddr_print(ndo, ip, sport, dport);
    436 			while (cp < ep)
    437 				cp = rtcp_print(ndo, cp, ep);
    438 			break;
    439 
    440 		case PT_SNMP:
    441 			udpipaddr_print(ndo, ip, sport, dport);
    442 			snmp_print(ndo, (const u_char *)(up + 1), length);
    443 			break;
    444 
    445 		case PT_CNFP:
    446 			udpipaddr_print(ndo, ip, sport, dport);
    447 			cnfp_print(ndo, cp);
    448 			break;
    449 
    450 		case PT_TFTP:
    451 			udpipaddr_print(ndo, ip, sport, dport);
    452 			tftp_print(ndo, cp, length);
    453 			break;
    454 
    455 		case PT_AODV:
    456 			udpipaddr_print(ndo, ip, sport, dport);
    457 			aodv_print(ndo, (const u_char *)(up + 1), length,
    458 #ifdef INET6
    459 			    ip6 != NULL);
    460 #else
    461 			    0);
    462 #endif
    463 			break;
    464 
    465 		case PT_RADIUS:
    466 			udpipaddr_print(ndo, ip, sport, dport);
    467 			radius_print(ndo, cp, length);
    468 			break;
    469 
    470 		case PT_VXLAN:
    471 			udpipaddr_print(ndo, ip, sport, dport);
    472 			vxlan_print(ndo, (const u_char *)(up + 1), length);
    473 			break;
    474 
    475 		case PT_PGM:
    476 		case PT_PGM_ZMTP1:
    477 			udpipaddr_print(ndo, ip, sport, dport);
    478 			pgm_print(ndo, cp, length, bp2);
    479 			break;
    480 		case PT_LMP:
    481 			udpipaddr_print(ndo, ip, sport, dport);
    482 			lmp_print(ndo, cp, length);
    483 			break;
    484 		}
    485 		return;
    486 	}
    487 
    488 	udpipaddr_print(ndo, ip, sport, dport);
    489 	if (!ndo->ndo_qflag) {
    490 		register struct sunrpc_msg *rp;
    491 		enum sunrpc_msg_type direction;
    492 
    493 		rp = (struct sunrpc_msg *)(up + 1);
    494 		if (ND_TTEST(rp->rm_direction)) {
    495 			direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
    496 			if (dport == NFS_PORT && direction == SUNRPC_CALL) {
    497 				ND_PRINT((ndo, "NFS request xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
    498 				nfsreq_print_noaddr(ndo, (u_char *)rp, length,
    499 				    (u_char *)ip);
    500 				return;
    501 			}
    502 			if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
    503 				ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
    504 				nfsreply_print_noaddr(ndo, (u_char *)rp, length,
    505 				    (u_char *)ip);
    506 				return;
    507 			}
    508 #ifdef notdef
    509 			if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
    510 				sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
    511 				return;
    512 			}
    513 #endif
    514 		}
    515 		if (ND_TTEST(((struct LAP *)cp)->type) &&
    516 		    ((struct LAP *)cp)->type == lapDDP &&
    517 		    (atalk_port(sport) || atalk_port(dport))) {
    518 			if (ndo->ndo_vflag)
    519 				ND_PRINT((ndo, "kip "));
    520 			llap_print(ndo, cp, length);
    521 			return;
    522 		}
    523 	}
    524 
    525 	if (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) {
    526                 /* Check the checksum, if possible. */
    527                 uint16_t sum, udp_sum;
    528 
    529 		/*
    530 		 * XXX - do this even if vflag == 1?
    531 		 * TCP does, and we do so for UDP-over-IPv6.
    532 		 */
    533 	        if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) {
    534 			udp_sum = EXTRACT_16BITS(&up->uh_sum);
    535 			if (udp_sum == 0) {
    536 				ND_PRINT((ndo, "[no cksum] "));
    537 			} else if (ND_TTEST2(cp[0], length)) {
    538 				sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr));
    539 
    540 	                        if (sum != 0) {
    541 					ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",
    542 					    udp_sum,
    543 					    in_cksum_shouldbe(udp_sum, sum)));
    544 				} else
    545 					ND_PRINT((ndo, "[udp sum ok] "));
    546 			}
    547 		}
    548 #ifdef INET6
    549 		else if (IP_V(ip) == 6 && ip6->ip6_plen) {
    550 			/* for IPv6, UDP checksum is mandatory */
    551 			if (ND_TTEST2(cp[0], length)) {
    552 				sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));
    553 				udp_sum = EXTRACT_16BITS(&up->uh_sum);
    554 
    555 	                        if (sum != 0) {
    556 					ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",
    557 					    udp_sum,
    558 					    in_cksum_shouldbe(udp_sum, sum)));
    559 				} else
    560 					ND_PRINT((ndo, "[udp sum ok] "));
    561 			}
    562 		}
    563 #endif
    564 	}
    565 
    566 	if (!ndo->ndo_qflag) {
    567 #define ISPORT(p) (dport == (p) || sport == (p))
    568 		if (ISPORT(NAMESERVER_PORT))
    569 			ns_print(ndo, (const u_char *)(up + 1), length, 0);
    570 		else if (ISPORT(MULTICASTDNS_PORT))
    571 			ns_print(ndo, (const u_char *)(up + 1), length, 1);
    572 		else if (ISPORT(TIMED_PORT))
    573 			timed_print(ndo, (const u_char *)(up + 1));
    574 		else if (ISPORT(TFTP_PORT))
    575 			tftp_print(ndo, (const u_char *)(up + 1), length);
    576 		else if (ISPORT(BOOTPC_PORT) || ISPORT(BOOTPS_PORT))
    577 			bootp_print(ndo, (const u_char *)(up + 1), length);
    578 		else if (ISPORT(RIP_PORT))
    579 			rip_print(ndo, (const u_char *)(up + 1), length);
    580 		else if (ISPORT(AODV_PORT))
    581 			aodv_print(ndo, (const u_char *)(up + 1), length,
    582 #ifdef INET6
    583 			    ip6 != NULL);
    584 #else
    585 			    0);
    586 #endif
    587 	        else if (ISPORT(ISAKMP_PORT))
    588 			 isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
    589   	        else if (ISPORT(ISAKMP_PORT_NATT))
    590 			 isakmp_rfc3948_print(ndo, (const u_char *)(up + 1), length, bp2);
    591 #if 1 /*???*/
    592    	        else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
    593 			isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
    594 #endif
    595 		else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
    596 			snmp_print(ndo, (const u_char *)(up + 1), length);
    597 		else if (ISPORT(NTP_PORT))
    598 			ntp_print(ndo, (const u_char *)(up + 1), length);
    599 		else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))
    600 			krb_print(ndo, (const void *)(up + 1));
    601 		else if (ISPORT(L2TP_PORT))
    602 			l2tp_print(ndo, (const u_char *)(up + 1), length);
    603 #ifdef TCPDUMP_DO_SMB
    604 		else if (ISPORT(NETBIOS_NS_PORT))
    605 			nbt_udp137_print(ndo, (const u_char *)(up + 1), length);
    606 		else if (ISPORT(NETBIOS_DGRAM_PORT))
    607 			nbt_udp138_print(ndo, (const u_char *)(up + 1), length);
    608 #endif
    609 		else if (dport == VAT_PORT)
    610 			vat_print(ndo, (const void *)(up + 1), up);
    611 		else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT))
    612 			zephyr_print(ndo, (const void *)(up + 1), length);
    613 		/*
    614 		 * Since there are 10 possible ports to check, I think
    615 		 * a <> test would be more efficient
    616 		 */
    617 		else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
    618 			 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
    619 			rx_print(ndo, (const void *)(up + 1), length, sport, dport,
    620 				 (u_char *) ip);
    621 #ifdef INET6
    622 		else if (ISPORT(RIPNG_PORT))
    623 			ripng_print(ndo, (const u_char *)(up + 1), length);
    624 		else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT))
    625 			dhcp6_print(ndo, (const u_char *)(up + 1), length);
    626 		else if (ISPORT(AHCP_PORT))
    627 			ahcp_print(ndo, (const u_char *)(up + 1), length);
    628 		else if (ISPORT(BABEL_PORT) || ISPORT(BABEL_PORT_OLD))
    629 			babel_print(ndo, (const u_char *)(up + 1), length);
    630 #endif /*INET6*/
    631 		/*
    632 		 * Kludge in test for whiteboard packets.
    633 		 */
    634 		else if (dport == WB_PORT)
    635 			wb_print(ndo, (const void *)(up + 1), length);
    636 		else if (ISPORT(CISCO_AUTORP_PORT))
    637 			cisco_autorp_print(ndo, (const void *)(up + 1), length);
    638 		else if (ISPORT(RADIUS_PORT) ||
    639 			 ISPORT(RADIUS_NEW_PORT) ||
    640 			 ISPORT(RADIUS_ACCOUNTING_PORT) ||
    641 			 ISPORT(RADIUS_NEW_ACCOUNTING_PORT) ||
    642 			 ISPORT(RADIUS_COA_PORT) )
    643 			radius_print(ndo, (const u_char *)(up+1), length);
    644 		else if (dport == HSRP_PORT)
    645 			hsrp_print(ndo, (const u_char *)(up + 1), length);
    646 		else if (ISPORT(LWRES_PORT))
    647 			lwres_print(ndo, (const u_char *)(up + 1), length);
    648 		else if (ISPORT(LDP_PORT))
    649 			ldp_print(ndo, (const u_char *)(up + 1), length);
    650 		else if (ISPORT(OLSR_PORT))
    651 			olsr_print(ndo, (const u_char *)(up + 1), length,
    652 #if INET6
    653 					(IP_V(ip) == 6) ? 1 : 0);
    654 #else
    655 					0);
    656 #endif
    657 		else if (ISPORT(MPLS_LSP_PING_PORT))
    658 			lspping_print(ndo, (const u_char *)(up + 1), length);
    659 		else if (dport == BFD_CONTROL_PORT ||
    660 			 dport == BFD_ECHO_PORT )
    661 			bfd_print(ndo, (const u_char *)(up+1), length, dport);
    662                 else if (ISPORT(LMP_PORT))
    663 			lmp_print(ndo, (const u_char *)(up + 1), length);
    664 		else if (ISPORT(VQP_PORT))
    665 			vqp_print(ndo, (const u_char *)(up + 1), length);
    666                 else if (ISPORT(SFLOW_PORT))
    667                         sflow_print(ndo, (const u_char *)(up + 1), length);
    668 	        else if (dport == LWAPP_CONTROL_PORT)
    669 			lwapp_control_print(ndo, (const u_char *)(up + 1), length, 1);
    670                 else if (sport == LWAPP_CONTROL_PORT)
    671                         lwapp_control_print(ndo, (const u_char *)(up + 1), length, 0);
    672                 else if (ISPORT(LWAPP_DATA_PORT))
    673                         lwapp_data_print(ndo, (const u_char *)(up + 1), length);
    674                 else if (ISPORT(SIP_PORT))
    675 			sip_print(ndo, (const u_char *)(up + 1), length);
    676                 else if (ISPORT(SYSLOG_PORT))
    677 			syslog_print(ndo, (const u_char *)(up + 1), length);
    678                 else if (ISPORT(OTV_PORT))
    679 			otv_print(ndo, (const u_char *)(up + 1), length);
    680                 else if (ISPORT(VXLAN_PORT))
    681 			vxlan_print(ndo, (const u_char *)(up + 1), length);
    682                 else if (ISPORT(GENEVE_PORT))
    683 			geneve_print(ndo, (const u_char *)(up + 1), length);
    684 		else {
    685 			if (ulen > length)
    686 				ND_PRINT((ndo, "UDP, bad length %u > %u",
    687 				    ulen, length));
    688 			else
    689 				ND_PRINT((ndo, "UDP, length %u", ulen));
    690 		}
    691 #undef ISPORT
    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 }
    700 
    701 
    702 /*
    703  * Local Variables:
    704  * c-style: whitesmith
    705  * c-basic-offset: 8
    706  * End:
    707  */
    708 
    709