Adding upstream version 4.99.4.upstream/4.99.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 743 insertions, 0 deletions

diff --git a/print-udp.c b/print-udp.c
new file mode 100644
index 0000000..769cbe4
--- /dev/null
+++ b/print-udp.c
@@ -0,0 +1,743 @@
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* \summary: UDP printer */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#include "netdissect.h"
+#include "addrtoname.h"
+#include "extract.h"
+#include "appletalk.h"
+
+#include "udp.h"
+
+#include "ip.h"
+#include "ip6.h"
+#include "ipproto.h"
+#include "rpc_auth.h"
+#include "rpc_msg.h"
+
+#include "nfs.h"
+
+
+struct rtcphdr {
+	nd_uint16_t rh_flags;	/* T:2 P:1 CNT:5 PT:8 */
+	nd_uint16_t rh_len;	/* length of message (in words) */
+	nd_uint32_t rh_ssrc;	/* synchronization src id */
+};
+
+typedef struct {
+	nd_uint32_t upper;	/* more significant 32 bits */
+	nd_uint32_t lower;	/* less significant 32 bits */
+} ntp64;
+
+/*
+ * Sender report.
+ */
+struct rtcp_sr {
+	ntp64       sr_ntp;	/* 64-bit ntp timestamp */
+	nd_uint32_t sr_ts;	/* reference media timestamp */
+	nd_uint32_t sr_np;	/* no. packets sent */
+	nd_uint32_t sr_nb;	/* no. bytes sent */
+};
+
+/*
+ * Receiver report.
+ * Time stamps are middle 32-bits of ntp timestamp.
+ */
+struct rtcp_rr {
+	nd_uint32_t rr_srcid;	/* sender being reported */
+	nd_uint32_t rr_nl;	/* no. packets lost */
+	nd_uint32_t rr_ls;	/* extended last seq number received */
+	nd_uint32_t rr_dv;	/* jitter (delay variance) */
+	nd_uint32_t rr_lsr;	/* orig. ts from last rr from this src  */
+	nd_uint32_t rr_dlsr;	/* time from recpt of last rr to xmit time */
+};
+
+/*XXX*/
+#define RTCP_PT_SR	200
+#define RTCP_PT_RR	201
+#define RTCP_PT_SDES	202
+#define    RTCP_SDES_CNAME	1
+#define    RTCP_SDES_NAME	2
+#define    RTCP_SDES_EMAIL	3
+#define    RTCP_SDES_PHONE	4
+#define    RTCP_SDES_LOC	5
+#define    RTCP_SDES_TOOL	6
+#define    RTCP_SDES_NOTE	7
+#define    RTCP_SDES_PRIV	8
+#define RTCP_PT_BYE	203
+#define RTCP_PT_APP	204
+
+static void
+vat_print(netdissect_options *ndo, const u_char *hdr, u_int length)
+{
+	/* vat/vt audio */
+	u_int ts;
+
+	ndo->ndo_protocol = "vat";
+	if (length < 2) {
+		ND_PRINT("udp/va/vat, length %u < 2", length);
+		return;
+	}
+	ts = GET_BE_U_2(hdr);
+	if ((ts & 0xf060) != 0) {
+		/* probably vt */
+		ND_PRINT("udp/vt %u %u / %u",
+			     length,
+			     ts & 0x3ff, ts >> 10);
+	} else {
+		/* probably vat */
+		uint32_t i0, i1;
+
+		if (length < 8) {
+			ND_PRINT("udp/vat, length %u < 8", length);
+			return;
+		}
+		i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
+		i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
+		ND_PRINT("udp/vat %u c%u %u%s",
+			length - 8,
+			i0 & 0xffff,
+			i1, i0 & 0x800000? "*" : "");
+		/* audio format */
+		if (i0 & 0x1f0000)
+			ND_PRINT(" f%u", (i0 >> 16) & 0x1f);
+		if (i0 & 0x3f000000)
+			ND_PRINT(" s%u", (i0 >> 24) & 0x3f);
+	}
+}
+
+static void
+rtp_print(netdissect_options *ndo, const u_char *hdr, u_int len)
+{
+	/* rtp v1 or v2 */
+	const u_int *ip = (const u_int *)hdr;
+	u_int hasopt, hasext, contype, hasmarker, dlen;
+	uint32_t i0, i1;
+	const char * ptype;
+
+	ndo->ndo_protocol = "rtp";
+	if (len < 8) {
+		ND_PRINT("udp/rtp, length %u < 8", len);
+		return;
+	}
+	i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
+	i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
+	dlen = len - 8;
+	ip += 2;
+	len >>= 2;
+	len -= 2;
+	hasopt = 0;
+	hasext = 0;
+	if ((i0 >> 30) == 1) {
+		/* rtp v1 - draft-ietf-avt-rtp-04 */
+		hasopt = i0 & 0x800000;
+		contype = (i0 >> 16) & 0x3f;
+		hasmarker = i0 & 0x400000;
+		ptype = "rtpv1";
+	} else {
+		/* rtp v2 - RFC 3550 */
+		if (dlen < 4) {
+			ND_PRINT("udp/rtp, length %u < 12", dlen + 8);
+			return;
+		}
+		hasext = i0 & 0x10000000;
+		contype = (i0 >> 16) & 0x7f;
+		hasmarker = i0 & 0x800000;
+		dlen -= 4;
+		ptype = "rtp";
+		ip += 1;
+		len -= 1;
+	}
+	ND_PRINT("udp/%s %u c%u %s%s %u %u",
+		ptype,
+		dlen,
+		contype,
+		(hasopt || hasext)? "+" : "",
+		hasmarker? "*" : "",
+		i0 & 0xffff,
+		i1);
+	if (ndo->ndo_vflag) {
+		ND_PRINT(" %u", GET_BE_U_4(&((const u_int *)hdr)[2]));
+		if (hasopt) {
+			u_int i2, optlen;
+			do {
+				i2 = GET_BE_U_4(ip);
+				optlen = (i2 >> 16) & 0xff;
+				if (optlen == 0 || optlen > len) {
+					ND_PRINT(" !opt");
+					return;
+				}
+				ip += optlen;
+				len -= optlen;
+			} while ((int)i2 >= 0);
+		}
+		if (hasext) {
+			u_int i2, extlen;
+			i2 = GET_BE_U_4(ip);
+			extlen = (i2 & 0xffff) + 1;
+			if (extlen > len) {
+				ND_PRINT(" !ext");
+				return;
+			}
+			ip += extlen;
+		}
+		if (contype == 0x1f) /*XXX H.261 */
+			ND_PRINT(" 0x%04x", GET_BE_U_4(ip) >> 16);
+	}
+}
+
+static const u_char *
+rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)
+{
+	/* rtp v2 control (rtcp) */
+	const struct rtcp_rr *rr = 0;
+	const struct rtcp_sr *sr;
+	const struct rtcphdr *rh = (const struct rtcphdr *)hdr;
+	u_int len;
+	uint16_t flags;
+	u_int cnt;
+	double ts, dts;
+
+	ndo->ndo_protocol = "rtcp";
+	if ((const u_char *)(rh + 1) > ep)
+		goto trunc;
+	ND_TCHECK_SIZE(rh);
+	len = (GET_BE_U_2(rh->rh_len) + 1) * 4;
+	flags = GET_BE_U_2(rh->rh_flags);
+	cnt = (flags >> 8) & 0x1f;
+	switch (flags & 0xff) {
+	case RTCP_PT_SR:
+		sr = (const struct rtcp_sr *)(rh + 1);
+		ND_PRINT(" sr");
+		if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
+			ND_PRINT(" [%u]", len);
+		if (ndo->ndo_vflag)
+			ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
+		if ((const u_char *)(sr + 1) > ep)
+			goto trunc;
+		ND_TCHECK_SIZE(sr);
+		ts = (double)(GET_BE_U_4(sr->sr_ntp.upper)) +
+		    ((double)(GET_BE_U_4(sr->sr_ntp.lower)) /
+		     FMAXINT);
+		ND_PRINT(" @%.2f %u %up %ub", ts, GET_BE_U_4(sr->sr_ts),
+			  GET_BE_U_4(sr->sr_np), GET_BE_U_4(sr->sr_nb));
+		rr = (const struct rtcp_rr *)(sr + 1);
+		break;
+	case RTCP_PT_RR:
+		ND_PRINT(" rr");
+		if (len != cnt * sizeof(*rr) + sizeof(*rh))
+			ND_PRINT(" [%u]", len);
+		rr = (const struct rtcp_rr *)(rh + 1);
+		if (ndo->ndo_vflag)
+			ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
+		break;
+	case RTCP_PT_SDES:
+		ND_PRINT(" sdes %u", len);
+		if (ndo->ndo_vflag)
+			ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
+		cnt = 0;
+		break;
+	case RTCP_PT_BYE:
+		ND_PRINT(" bye %u", len);
+		if (ndo->ndo_vflag)
+			ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
+		cnt = 0;
+		break;
+	default:
+		ND_PRINT(" type-0x%x %u", flags & 0xff, len);
+		cnt = 0;
+		break;
+	}
+	if (cnt > 1)
+		ND_PRINT(" c%u", cnt);
+	while (cnt != 0) {
+		if ((const u_char *)(rr + 1) > ep)
+			goto trunc;
+		ND_TCHECK_SIZE(rr);
+		if (ndo->ndo_vflag)
+			ND_PRINT(" %u", GET_BE_U_4(rr->rr_srcid));
+		ts = (double)(GET_BE_U_4(rr->rr_lsr)) / 65536.;
+		dts = (double)(GET_BE_U_4(rr->rr_dlsr)) / 65536.;
+		ND_PRINT(" %ul %us %uj @%.2f+%.2f",
+		    GET_BE_U_4(rr->rr_nl) & 0x00ffffff,
+		    GET_BE_U_4(rr->rr_ls),
+		    GET_BE_U_4(rr->rr_dv), ts, dts);
+		cnt--;
+	}
+	return (hdr + len);
+
+trunc:
+	nd_print_trunc(ndo);
+	return ep;
+}
+
+static uint16_t udp_cksum(netdissect_options *ndo, const struct ip *ip,
+		     const struct udphdr *up,
+		     u_int len)
+{
+	return nextproto4_cksum(ndo, ip, (const uint8_t *)(const void *)up, len, len,
+				IPPROTO_UDP);
+}
+
+static uint16_t udp6_cksum(netdissect_options *ndo, const struct ip6_hdr *ip6,
+		      const struct udphdr *up, u_int len)
+{
+	return nextproto6_cksum(ndo, ip6, (const uint8_t *)(const void *)up, len, len,
+				IPPROTO_UDP);
+}
+
+static void
+udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport)
+{
+	const struct ip6_hdr *ip6;
+
+	if (IP_V(ip) == 6)
+		ip6 = (const struct ip6_hdr *)ip;
+	else
+		ip6 = NULL;
+
+	if (ip6) {
+		if (GET_U_1(ip6->ip6_nxt) == IPPROTO_UDP) {
+			if (sport == -1) {
+				ND_PRINT("%s > %s: ",
+					GET_IP6ADDR_STRING(ip6->ip6_src),
+					GET_IP6ADDR_STRING(ip6->ip6_dst));
+			} else {
+				ND_PRINT("%s.%s > %s.%s: ",
+					GET_IP6ADDR_STRING(ip6->ip6_src),
+					udpport_string(ndo, (uint16_t)sport),
+					GET_IP6ADDR_STRING(ip6->ip6_dst),
+					udpport_string(ndo, (uint16_t)dport));
+			}
+		} else {
+			if (sport != -1) {
+				ND_PRINT("%s > %s: ",
+					udpport_string(ndo, (uint16_t)sport),
+					udpport_string(ndo, (uint16_t)dport));
+			}
+		}
+	} else {
+		if (GET_U_1(ip->ip_p) == IPPROTO_UDP) {
+			if (sport == -1) {
+				ND_PRINT("%s > %s: ",
+					GET_IPADDR_STRING(ip->ip_src),
+					GET_IPADDR_STRING(ip->ip_dst));
+			} else {
+				ND_PRINT("%s.%s > %s.%s: ",
+					GET_IPADDR_STRING(ip->ip_src),
+					udpport_string(ndo, (uint16_t)sport),
+					GET_IPADDR_STRING(ip->ip_dst),
+					udpport_string(ndo, (uint16_t)dport));
+			}
+		} else {
+			if (sport != -1) {
+				ND_PRINT("%s > %s: ",
+					udpport_string(ndo, (uint16_t)sport),
+					udpport_string(ndo, (uint16_t)dport));
+			}
+		}
+	}
+}
+
+void
+udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
+	  const u_char *bp2, int fragmented, u_int ttl_hl)
+{
+	const struct udphdr *up;
+	const struct ip *ip;
+	const u_char *cp;
+	const u_char *ep = ndo->ndo_snapend;
+	uint16_t sport, dport;
+	u_int ulen;
+	const struct ip6_hdr *ip6;
+
+	ndo->ndo_protocol = "udp";
+	up = (const struct udphdr *)bp;
+	ip = (const struct ip *)bp2;
+	if (IP_V(ip) == 6)
+		ip6 = (const struct ip6_hdr *)bp2;
+	else
+		ip6 = NULL;
+	if (!ND_TTEST_2(up->uh_dport)) {
+		udpipaddr_print(ndo, ip, -1, -1);
+		goto trunc;
+	}
+
+	sport = GET_BE_U_2(up->uh_sport);
+	dport = GET_BE_U_2(up->uh_dport);
+
+	if (length < sizeof(struct udphdr)) {
+		udpipaddr_print(ndo, ip, sport, dport);
+		ND_PRINT("truncated-udp %u", length);
+		return;
+	}
+	if (!ND_TTEST_2(up->uh_ulen)) {
+		udpipaddr_print(ndo, ip, sport, dport);
+		goto trunc;
+	}
+	ulen = GET_BE_U_2(up->uh_ulen);
+	/*
+	 * IPv6 Jumbo Datagrams; see RFC 2675.
+	 * If the length is zero, and the length provided to us is
+	 * > 65535, use the provided length as the length.
+	 */
+	if (ulen == 0 && length > 65535)
+		ulen = length;
+	if (ulen < sizeof(struct udphdr)) {
+		udpipaddr_print(ndo, ip, sport, dport);
+		ND_PRINT("truncated-udplength %u", ulen);
+		return;
+	}
+	ulen -= sizeof(struct udphdr);
+	length -= sizeof(struct udphdr);
+	if (ulen < length)
+		length = ulen;
+
+	cp = (const u_char *)(up + 1);
+	if (cp > ndo->ndo_snapend) {
+		udpipaddr_print(ndo, ip, sport, dport);
+		goto trunc;
+	}
+
+	if (ndo->ndo_packettype) {
+		const struct sunrpc_msg *rp;
+		enum sunrpc_msg_type direction;
+
+		switch (ndo->ndo_packettype) {
+
+		case PT_VAT:
+			udpipaddr_print(ndo, ip, sport, dport);
+			vat_print(ndo, cp, length);
+			break;
+
+		case PT_WB:
+			udpipaddr_print(ndo, ip, sport, dport);
+			wb_print(ndo, cp, length);
+			break;
+
+		case PT_RPC:
+			rp = (const struct sunrpc_msg *)cp;
+			direction = (enum sunrpc_msg_type) GET_BE_U_4(rp->rm_direction);
+			if (direction == SUNRPC_CALL)
+				sunrpc_print(ndo, (const u_char *)rp, length,
+				    (const u_char *)ip);
+			else
+				nfsreply_print(ndo, (const u_char *)rp, length,
+				    (const u_char *)ip);			/*XXX*/
+			break;
+
+		case PT_RTP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			rtp_print(ndo, cp, length);
+			break;
+
+		case PT_RTCP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			while (cp < ep)
+				cp = rtcp_print(ndo, cp, ep);
+			break;
+
+		case PT_SNMP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			snmp_print(ndo, cp, length);
+			break;
+
+		case PT_CNFP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			cnfp_print(ndo, cp);
+			break;
+
+		case PT_TFTP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			tftp_print(ndo, cp, length);
+			break;
+
+		case PT_AODV:
+			udpipaddr_print(ndo, ip, sport, dport);
+			aodv_print(ndo, cp, length,
+			    ip6 != NULL);
+			break;
+
+		case PT_RADIUS:
+			udpipaddr_print(ndo, ip, sport, dport);
+			radius_print(ndo, cp, length);
+			break;
+
+		case PT_VXLAN:
+			udpipaddr_print(ndo, ip, sport, dport);
+			vxlan_print(ndo, cp, length);
+			break;
+
+		case PT_PGM:
+		case PT_PGM_ZMTP1:
+			udpipaddr_print(ndo, ip, sport, dport);
+			pgm_print(ndo, cp, length, bp2);
+			break;
+		case PT_LMP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			lmp_print(ndo, cp, length);
+			break;
+		case PT_PTP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			ptp_print(ndo, cp, length);
+			break;
+		case PT_SOMEIP:
+			udpipaddr_print(ndo, ip, sport, dport);
+			someip_print(ndo, cp, length);
+			break;
+		case PT_DOMAIN:
+			udpipaddr_print(ndo, ip, sport, dport);
+			/* over_tcp: FALSE, is_mdns: FALSE */
+			domain_print(ndo, cp, length, FALSE, FALSE);
+			break;
+		}
+		return;
+	}
+
+	udpipaddr_print(ndo, ip, sport, dport);
+	if (!ndo->ndo_qflag) {
+		const struct sunrpc_msg *rp;
+		enum sunrpc_msg_type direction;
+
+		rp = (const struct sunrpc_msg *)cp;
+		if (ND_TTEST_4(rp->rm_direction)) {
+			direction = (enum sunrpc_msg_type) GET_BE_U_4(rp->rm_direction);
+			if (dport == NFS_PORT && direction == SUNRPC_CALL) {
+				ND_PRINT("NFS request xid %u ",
+					 GET_BE_U_4(rp->rm_xid));
+				nfsreq_noaddr_print(ndo, (const u_char *)rp, length,
+				    (const u_char *)ip);
+				return;
+			}
+			if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
+				ND_PRINT("NFS reply xid %u ",
+					 GET_BE_U_4(rp->rm_xid));
+				nfsreply_noaddr_print(ndo, (const u_char *)rp, length,
+				    (const u_char *)ip);
+				return;
+			}
+#ifdef notdef
+			if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
+				sunrpc_print((const u_char *)rp, length, (const u_char *)ip);
+				return;
+			}
+#endif
+		}
+	}
+
+	if (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) {
+		/* Check the checksum, if possible. */
+		uint16_t sum, udp_sum;
+
+		/*
+		 * XXX - do this even if vflag == 1?
+		 * TCP does, and we do so for UDP-over-IPv6.
+		 */
+		if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) {
+			udp_sum = GET_BE_U_2(up->uh_sum);
+			if (udp_sum == 0) {
+				ND_PRINT("[no cksum] ");
+			} else if (ND_TTEST_LEN(cp, length)) {
+				sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr));
+
+				if (sum != 0) {
+					ND_PRINT("[bad udp cksum 0x%04x -> 0x%04x!] ",
+					    udp_sum,
+					    in_cksum_shouldbe(udp_sum, sum));
+				} else
+					ND_PRINT("[udp sum ok] ");
+			}
+		}
+		else if (IP_V(ip) == 6) {
+			/* for IPv6, UDP checksum is mandatory */
+			if (ND_TTEST_LEN(cp, length)) {
+				sum = udp6_cksum(ndo, ip6, up, length + sizeof(struct udphdr));
+				udp_sum = GET_BE_U_2(up->uh_sum);
+
+				if (sum != 0) {
+					ND_PRINT("[bad udp cksum 0x%04x -> 0x%04x!] ",
+					    udp_sum,
+					    in_cksum_shouldbe(udp_sum, sum));
+				} else
+					ND_PRINT("[udp sum ok] ");
+			}
+		}
+	}
+
+	if (!ndo->ndo_qflag) {
+		if (IS_SRC_OR_DST_PORT(NAMESERVER_PORT))
+			/* over_tcp: FALSE, is_mdns: FALSE */
+			domain_print(ndo, cp, length, FALSE, FALSE);
+		else if (IS_SRC_OR_DST_PORT(MULTICASTDNS_PORT))
+			/* over_tcp: FALSE, is_mdns: TRUE */
+			domain_print(ndo, cp, length, FALSE, TRUE);
+		else if (IS_SRC_OR_DST_PORT(TIMED_PORT))
+			timed_print(ndo, (const u_char *)cp);
+		else if (IS_SRC_OR_DST_PORT(TFTP_PORT))
+			tftp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(BOOTPC_PORT) || IS_SRC_OR_DST_PORT(BOOTPS_PORT))
+			bootp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(RIP_PORT))
+			rip_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(AODV_PORT))
+			aodv_print(ndo, cp, length,
+			    ip6 != NULL);
+		else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT))
+			 isakmp_print(ndo, cp, length, bp2);
+		else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_NATT))
+			 isakmp_rfc3948_print(ndo, cp, length, bp2, IP_V(ip), fragmented, ttl_hl);
+		else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER1) || IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER2))
+			isakmp_print(ndo, cp, length, bp2);
+		else if (IS_SRC_OR_DST_PORT(SNMP_PORT) || IS_SRC_OR_DST_PORT(SNMPTRAP_PORT))
+			snmp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(NTP_PORT))
+			ntp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(KERBEROS_PORT) || IS_SRC_OR_DST_PORT(KERBEROS_SEC_PORT))
+			krb_print(ndo, (const u_char *)cp);
+		else if (IS_SRC_OR_DST_PORT(L2TP_PORT))
+			l2tp_print(ndo, cp, length);
+#ifdef ENABLE_SMB
+		else if (IS_SRC_OR_DST_PORT(NETBIOS_NS_PORT))
+			nbt_udp137_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(NETBIOS_DGRAM_PORT))
+			nbt_udp138_print(ndo, cp, length);
+#endif
+		else if (dport == VAT_PORT)
+			vat_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(ZEPHYR_SRV_PORT) || IS_SRC_OR_DST_PORT(ZEPHYR_CLT_PORT))
+			zephyr_print(ndo, cp, length);
+		/*
+		 * Since there are 10 possible ports to check, I think
+		 * a <> test would be more efficient
+		 */
+		else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
+			 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
+			rx_print(ndo, cp, length, sport, dport,
+				 (const u_char *) ip);
+		else if (IS_SRC_OR_DST_PORT(RIPNG_PORT))
+			ripng_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(DHCP6_SERV_PORT) || IS_SRC_OR_DST_PORT(DHCP6_CLI_PORT))
+			dhcp6_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(AHCP_PORT))
+			ahcp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(BABEL_PORT) || IS_SRC_OR_DST_PORT(BABEL_PORT_OLD))
+			babel_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(HNCP_PORT))
+			hncp_print(ndo, cp, length);
+		/*
+		 * Kludge in test for whiteboard packets.
+		 */
+		else if (dport == WB_PORT)
+			wb_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(CISCO_AUTORP_PORT))
+			cisco_autorp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(RADIUS_PORT) ||
+			 IS_SRC_OR_DST_PORT(RADIUS_NEW_PORT) ||
+			 IS_SRC_OR_DST_PORT(RADIUS_ACCOUNTING_PORT) ||
+			 IS_SRC_OR_DST_PORT(RADIUS_NEW_ACCOUNTING_PORT) ||
+			 IS_SRC_OR_DST_PORT(RADIUS_CISCO_COA_PORT) ||
+			 IS_SRC_OR_DST_PORT(RADIUS_COA_PORT) )
+			radius_print(ndo, cp, length);
+		else if (dport == HSRP_PORT)
+			hsrp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(LWRES_PORT))
+			lwres_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(LDP_PORT))
+			ldp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(OLSR_PORT))
+			olsr_print(ndo, cp, length,
+					(IP_V(ip) == 6) ? 1 : 0);
+		else if (IS_SRC_OR_DST_PORT(MPLS_LSP_PING_PORT))
+			lspping_print(ndo, cp, length);
+		else if (sport == BCM_LI_PORT)
+			bcm_li_print(ndo, cp, length);
+		else if (dport == BFD_CONTROL_PORT ||
+			 dport == BFD_MULTIHOP_PORT ||
+			 dport == BFD_LAG_PORT ||
+			 dport == BFD_ECHO_PORT )
+			bfd_print(ndo, cp, length, dport);
+		else if (IS_SRC_OR_DST_PORT(LMP_PORT))
+			lmp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(VQP_PORT))
+			vqp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(SFLOW_PORT))
+			sflow_print(ndo, cp, length);
+		else if (dport == LWAPP_CONTROL_PORT)
+			lwapp_control_print(ndo, cp, length, 1);
+		else if (sport == LWAPP_CONTROL_PORT)
+			lwapp_control_print(ndo, cp, length, 0);
+		else if (IS_SRC_OR_DST_PORT(LWAPP_DATA_PORT))
+			lwapp_data_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(SIP_PORT))
+			sip_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(SYSLOG_PORT))
+			syslog_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(OTV_PORT))
+			otv_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(VXLAN_PORT))
+			vxlan_print(ndo, cp, length);
+		else if (dport == GENEVE_PORT)
+			geneve_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(LISP_CONTROL_PORT))
+			lisp_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(VXLAN_GPE_PORT))
+			vxlan_gpe_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(ZEP_PORT))
+			zep_print(ndo, cp, length);
+		else if (IS_SRC_OR_DST_PORT(MPLS_PORT))
+			mpls_print(ndo, cp, length);
+		else if (ND_TTEST_1(((const struct LAP *)cp)->type) &&
+			 GET_U_1(((const struct LAP *)cp)->type) == lapDDP &&
+			 (atalk_port(sport) || atalk_port(dport))) {
+			if (ndo->ndo_vflag)
+				ND_PRINT("kip ");
+			llap_print(ndo, cp, length);
+		} else if (IS_SRC_OR_DST_PORT(PTP_EVENT_PORT) ||
+			IS_SRC_OR_DST_PORT(PTP_GENERAL_PORT)) {
+			ptp_print(ndo, cp, length);
+		} else if (IS_SRC_OR_DST_PORT(SOMEIP_PORT))
+			someip_print(ndo, cp, length);
+		else {
+			if (ulen > length && !fragmented)
+				ND_PRINT("UDP, bad length %u > %u",
+				    ulen, length);
+			else
+				ND_PRINT("UDP, length %u", ulen);
+		}
+	} else {
+		if (ulen > length && !fragmented)
+			ND_PRINT("UDP, bad length %u > %u",
+			    ulen, length);
+		else
+			ND_PRINT("UDP, length %u", ulen);
+	}
+	return;
+
+trunc:
+	nd_print_trunc(ndo);
+}