117680Spst/* 239300Sfenner * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 317680Spst * The Regents of the University of California. All rights reserved. 417680Spst * 517680Spst * Redistribution and use in source and binary forms, with or without 617680Spst * modification, are permitted provided that: (1) source code distributions 717680Spst * retain the above copyright notice and this paragraph in its entirety, (2) 817680Spst * distributions including binary code include the above copyright notice and 917680Spst * this paragraph in its entirety in the documentation or other materials 1017680Spst * provided with the distribution, and (3) all advertising materials mentioning 1117680Spst * features or use of this software display the following acknowledgement: 1217680Spst * ``This product includes software developed by the University of California, 1317680Spst * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 1417680Spst * the University nor the names of its contributors may be used to endorse 1517680Spst * or promote products derived from this software without specific prior 1617680Spst * written permission. 1717680Spst * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 1817680Spst * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 1917680Spst * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 2056896Sfenner * 2156896Sfenner * $FreeBSD$ 2217680Spst */ 2317680Spst 2417680Spst#ifndef lint 25127675Sbmsstatic const char rcsid[] _U_ = 26190207Srpaulo "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.142 2007-08-08 17:20:58 hannes Exp $ (LBL)"; 2717680Spst#endif 2817680Spst 2956896Sfenner#ifdef HAVE_CONFIG_H 3056896Sfenner#include "config.h" 3156896Sfenner#endif 3256896Sfenner 33127675Sbms#include <tcpdump-stdinc.h> 3417680Spst 3539300Sfenner#ifdef SEGSIZE 3639300Sfenner#undef SEGSIZE 3739300Sfenner#endif 3817680Spst 3917680Spst#include <stdio.h> 4075118Sfenner#include <string.h> 4117680Spst 4217680Spst#include "interface.h" 4317680Spst#include "addrtoname.h" 44127675Sbms#include "extract.h" 4517680Spst#include "appletalk.h" 4617680Spst 4775118Sfenner#include "udp.h" 4875118Sfenner 4975118Sfenner#include "ip.h" 5075118Sfenner#ifdef INET6 5175118Sfenner#include "ip6.h" 5275118Sfenner#endif 53127675Sbms#include "ipproto.h" 54146778Ssam#include "rpc_auth.h" 55146778Ssam#include "rpc_msg.h" 5675118Sfenner 5775118Sfenner#include "nameser.h" 5819001Spst#include "nfs.h" 5917680Spst#include "bootp.h" 6017680Spst 6117680Spststruct rtcphdr { 6275118Sfenner u_int16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */ 6375118Sfenner u_int16_t rh_len; /* length of message (in words) */ 6475118Sfenner u_int32_t rh_ssrc; /* synchronization src id */ 6517680Spst}; 6617680Spst 6717680Spsttypedef struct { 6875118Sfenner u_int32_t upper; /* more significant 32 bits */ 6975118Sfenner u_int32_t lower; /* less significant 32 bits */ 7017680Spst} ntp64; 7117680Spst 7217680Spst/* 7317680Spst * Sender report. 7417680Spst */ 7517680Spststruct rtcp_sr { 7617680Spst ntp64 sr_ntp; /* 64-bit ntp timestamp */ 7775118Sfenner u_int32_t sr_ts; /* reference media timestamp */ 7875118Sfenner u_int32_t sr_np; /* no. packets sent */ 7975118Sfenner u_int32_t sr_nb; /* no. bytes sent */ 8017680Spst}; 8117680Spst 8217680Spst/* 8317680Spst * Receiver report. 8417680Spst * Time stamps are middle 32-bits of ntp timestamp. 8517680Spst */ 8617680Spststruct rtcp_rr { 8775118Sfenner u_int32_t rr_srcid; /* sender being reported */ 8875118Sfenner u_int32_t rr_nl; /* no. packets lost */ 8975118Sfenner u_int32_t rr_ls; /* extended last seq number received */ 9075118Sfenner u_int32_t rr_dv; /* jitter (delay variance) */ 9175118Sfenner u_int32_t rr_lsr; /* orig. ts from last rr from this src */ 9275118Sfenner u_int32_t rr_dlsr; /* time from recpt of last rr to xmit time */ 9317680Spst}; 9417680Spst 9517680Spst/*XXX*/ 9626183Sfenner#define RTCP_PT_SR 200 9726183Sfenner#define RTCP_PT_RR 201 9826183Sfenner#define RTCP_PT_SDES 202 9917680Spst#define RTCP_SDES_CNAME 1 10017680Spst#define RTCP_SDES_NAME 2 10117680Spst#define RTCP_SDES_EMAIL 3 10217680Spst#define RTCP_SDES_PHONE 4 10317680Spst#define RTCP_SDES_LOC 5 10417680Spst#define RTCP_SDES_TOOL 6 10526183Sfenner#define RTCP_SDES_NOTE 7 10626183Sfenner#define RTCP_SDES_PRIV 8 10726183Sfenner#define RTCP_PT_BYE 203 10826183Sfenner#define RTCP_PT_APP 204 10917680Spst 11017680Spststatic void 111127675Sbmsvat_print(const void *hdr, register const struct udphdr *up) 11217680Spst{ 11317680Spst /* vat/vt audio */ 11475118Sfenner u_int ts = *(u_int16_t *)hdr; 11517680Spst if ((ts & 0xf060) != 0) { 11617680Spst /* probably vt */ 11798527Sfenner (void)printf("udp/vt %u %d / %d", 118127675Sbms (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)), 11917680Spst ts & 0x3ff, ts >> 10); 12017680Spst } else { 12117680Spst /* probably vat */ 122127675Sbms u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]); 123127675Sbms u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]); 12498527Sfenner printf("udp/vat %u c%d %u%s", 125127675Sbms (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8), 12617680Spst i0 & 0xffff, 12717680Spst i1, i0 & 0x800000? "*" : ""); 12817680Spst /* audio format */ 12917680Spst if (i0 & 0x1f0000) 13017680Spst printf(" f%d", (i0 >> 16) & 0x1f); 13117680Spst if (i0 & 0x3f000000) 13217680Spst printf(" s%d", (i0 >> 24) & 0x3f); 13317680Spst } 13417680Spst} 13517680Spst 13617680Spststatic void 13717680Spstrtp_print(const void *hdr, u_int len, register const struct udphdr *up) 13817680Spst{ 13917680Spst /* rtp v1 or v2 */ 14017680Spst u_int *ip = (u_int *)hdr; 14126183Sfenner u_int hasopt, hasext, contype, hasmarker; 142127675Sbms u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]); 143127675Sbms u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]); 144127675Sbms u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8; 14526183Sfenner const char * ptype; 14617680Spst 14717680Spst ip += 2; 14817680Spst len >>= 2; 14917680Spst len -= 2; 15026183Sfenner hasopt = 0; 15126183Sfenner hasext = 0; 15217680Spst if ((i0 >> 30) == 1) { 15317680Spst /* rtp v1 */ 15417680Spst hasopt = i0 & 0x800000; 15517680Spst contype = (i0 >> 16) & 0x3f; 15617680Spst hasmarker = i0 & 0x400000; 15717680Spst ptype = "rtpv1"; 15826183Sfenner } else { 15917680Spst /* rtp v2 */ 16026183Sfenner hasext = i0 & 0x10000000; 16117680Spst contype = (i0 >> 16) & 0x7f; 16217680Spst hasmarker = i0 & 0x800000; 16317680Spst dlen -= 4; 16417680Spst ptype = "rtp"; 16517680Spst ip += 1; 16617680Spst len -= 1; 16717680Spst } 16898527Sfenner printf("udp/%s %d c%d %s%s %d %u", 16917680Spst ptype, 17017680Spst dlen, 17117680Spst contype, 17226183Sfenner (hasopt || hasext)? "+" : "", 17317680Spst hasmarker? "*" : "", 17426183Sfenner i0 & 0xffff, 17526183Sfenner i1); 17617680Spst if (vflag) { 177127675Sbms printf(" %u", EXTRACT_32BITS(&((u_int *)hdr)[2])); 17817680Spst if (hasopt) { 17917680Spst u_int i2, optlen; 18017680Spst do { 18117680Spst i2 = ip[0]; 18217680Spst optlen = (i2 >> 16) & 0xff; 18317680Spst if (optlen == 0 || optlen > len) { 18417680Spst printf(" !opt"); 18517680Spst return; 18617680Spst } 18717680Spst ip += optlen; 18826183Sfenner len -= optlen; 18917680Spst } while ((int)i2 >= 0); 19017680Spst } 19126183Sfenner if (hasext) { 19226183Sfenner u_int i2, extlen; 19326183Sfenner i2 = ip[0]; 19426183Sfenner extlen = (i2 & 0xffff) + 1; 19526183Sfenner if (extlen > len) { 19626183Sfenner printf(" !ext"); 19726183Sfenner return; 19826183Sfenner } 19926183Sfenner ip += extlen; 20026183Sfenner } 20126183Sfenner if (contype == 0x1f) /*XXX H.261 */ 20217680Spst printf(" 0x%04x", ip[0] >> 16); 20317680Spst } 20417680Spst} 20517680Spst 20626183Sfennerstatic const u_char * 20726183Sfennerrtcp_print(const u_char *hdr, const u_char *ep) 20817680Spst{ 20917680Spst /* rtp v2 control (rtcp) */ 21026183Sfenner struct rtcp_rr *rr = 0; 21126183Sfenner struct rtcp_sr *sr; 21226183Sfenner struct rtcphdr *rh = (struct rtcphdr *)hdr; 21326183Sfenner u_int len; 21475118Sfenner u_int16_t flags; 21526183Sfenner int cnt; 21626183Sfenner double ts, dts; 21726183Sfenner if ((u_char *)(rh + 1) > ep) { 21826183Sfenner printf(" [|rtcp]"); 21926183Sfenner return (ep); 22026183Sfenner } 221127675Sbms len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4; 222127675Sbms flags = EXTRACT_16BITS(&rh->rh_flags); 22326183Sfenner cnt = (flags >> 8) & 0x1f; 22417680Spst switch (flags & 0xff) { 22517680Spst case RTCP_PT_SR: 22626183Sfenner sr = (struct rtcp_sr *)(rh + 1); 22717680Spst printf(" sr"); 22817680Spst if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh)) 22917680Spst printf(" [%d]", len); 23026183Sfenner if (vflag) 231127675Sbms printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); 23226183Sfenner if ((u_char *)(sr + 1) > ep) { 23326183Sfenner printf(" [|rtcp]"); 23426183Sfenner return (ep); 23526183Sfenner } 236127675Sbms ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) + 237127675Sbms ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) / 23826183Sfenner 4294967296.0); 239127675Sbms printf(" @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts), 240127675Sbms EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb)); 24126183Sfenner rr = (struct rtcp_rr *)(sr + 1); 24217680Spst break; 24317680Spst case RTCP_PT_RR: 24417680Spst printf(" rr"); 24517680Spst if (len != cnt * sizeof(*rr) + sizeof(*rh)) 24617680Spst printf(" [%d]", len); 24726183Sfenner rr = (struct rtcp_rr *)(rh + 1); 24826183Sfenner if (vflag) 249127675Sbms printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); 25017680Spst break; 25117680Spst case RTCP_PT_SDES: 25217680Spst printf(" sdes %d", len); 25326183Sfenner if (vflag) 254127675Sbms printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); 25517680Spst cnt = 0; 25617680Spst break; 25717680Spst case RTCP_PT_BYE: 25817680Spst printf(" bye %d", len); 25926183Sfenner if (vflag) 260127675Sbms printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); 26117680Spst cnt = 0; 26217680Spst break; 26317680Spst default: 26417680Spst printf(" type-0x%x %d", flags & 0xff, len); 26517680Spst cnt = 0; 26617680Spst break; 26717680Spst } 26817680Spst if (cnt > 1) 26917680Spst printf(" c%d", cnt); 27017680Spst while (--cnt >= 0) { 27126183Sfenner if ((u_char *)(rr + 1) > ep) { 27217680Spst printf(" [|rtcp]"); 27326183Sfenner return (ep); 27417680Spst } 27517680Spst if (vflag) 276127675Sbms printf(" %u", EXTRACT_32BITS(&rr->rr_srcid)); 277127675Sbms ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.; 278127675Sbms dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.; 27926183Sfenner printf(" %ul %us %uj @%.2f+%.2f", 280127675Sbms EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff, 281127675Sbms EXTRACT_32BITS(&rr->rr_ls), 282127675Sbms EXTRACT_32BITS(&rr->rr_dv), ts, dts); 28317680Spst } 28417680Spst return (hdr + len); 28517680Spst} 28617680Spst 28775118Sfennerstatic int udp_cksum(register const struct ip *ip, 28875118Sfenner register const struct udphdr *up, 289127675Sbms register u_int len) 29075118Sfenner{ 291235530Sdelphij return (nextproto4_cksum(ip, (const u_int8_t *)(void *)up, len, 292235530Sdelphij IPPROTO_UDP)); 29375118Sfenner} 29475118Sfenner 29575118Sfenner#ifdef INET6 29675118Sfennerstatic int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up, 297127675Sbms u_int len) 29875118Sfenner{ 299235530Sdelphij return (nextproto6_cksum(ip6, (const u_int8_t *)(void *)up, len, 300235530Sdelphij IPPROTO_UDP)); 30175118Sfenner} 30275118Sfenner#endif 30375118Sfenner 304127675Sbmsstatic void 305127675Sbmsudpipaddr_print(const struct ip *ip, int sport, int dport) 306127675Sbms{ 307127675Sbms#ifdef INET6 308127675Sbms const struct ip6_hdr *ip6; 30975118Sfenner 310127675Sbms if (IP_V(ip) == 6) 311127675Sbms ip6 = (const struct ip6_hdr *)ip; 312127675Sbms else 313127675Sbms ip6 = NULL; 31417680Spst 315127675Sbms if (ip6) { 316127675Sbms if (ip6->ip6_nxt == IPPROTO_UDP) { 317127675Sbms if (sport == -1) { 318127675Sbms (void)printf("%s > %s: ", 319127675Sbms ip6addr_string(&ip6->ip6_src), 320127675Sbms ip6addr_string(&ip6->ip6_dst)); 321127675Sbms } else { 322127675Sbms (void)printf("%s.%s > %s.%s: ", 323127675Sbms ip6addr_string(&ip6->ip6_src), 324127675Sbms udpport_string(sport), 325127675Sbms ip6addr_string(&ip6->ip6_dst), 326127675Sbms udpport_string(dport)); 327127675Sbms } 328127675Sbms } else { 329127675Sbms if (sport != -1) { 330127675Sbms (void)printf("%s > %s: ", 331127675Sbms udpport_string(sport), 332127675Sbms udpport_string(dport)); 333127675Sbms } 334127675Sbms } 335127675Sbms } else 336127675Sbms#endif /*INET6*/ 337127675Sbms { 338127675Sbms if (ip->ip_p == IPPROTO_UDP) { 339127675Sbms if (sport == -1) { 340127675Sbms (void)printf("%s > %s: ", 341127675Sbms ipaddr_string(&ip->ip_src), 342127675Sbms ipaddr_string(&ip->ip_dst)); 343127675Sbms } else { 344127675Sbms (void)printf("%s.%s > %s.%s: ", 345127675Sbms ipaddr_string(&ip->ip_src), 346127675Sbms udpport_string(sport), 347127675Sbms ipaddr_string(&ip->ip_dst), 348127675Sbms udpport_string(dport)); 349127675Sbms } 350127675Sbms } else { 351127675Sbms if (sport != -1) { 352127675Sbms (void)printf("%s > %s: ", 353127675Sbms udpport_string(sport), 354127675Sbms udpport_string(dport)); 355127675Sbms } 356127675Sbms } 357127675Sbms } 358127675Sbms} 35956896Sfenner 36017680Spstvoid 36175118Sfennerudp_print(register const u_char *bp, u_int length, 36275118Sfenner register const u_char *bp2, int fragmented) 36317680Spst{ 36417680Spst register const struct udphdr *up; 36517680Spst register const struct ip *ip; 36617680Spst register const u_char *cp; 36726183Sfenner register const u_char *ep = bp + length; 36875118Sfenner u_int16_t sport, dport, ulen; 36956896Sfenner#ifdef INET6 37056896Sfenner register const struct ip6_hdr *ip6; 37156896Sfenner#endif 37217680Spst 37326183Sfenner if (ep > snapend) 37426183Sfenner ep = snapend; 37517680Spst up = (struct udphdr *)bp; 37617680Spst ip = (struct ip *)bp2; 37756896Sfenner#ifdef INET6 37875118Sfenner if (IP_V(ip) == 6) 37956896Sfenner ip6 = (struct ip6_hdr *)bp2; 38056896Sfenner else 38156896Sfenner ip6 = NULL; 38256896Sfenner#endif /*INET6*/ 38317680Spst cp = (u_char *)(up + 1); 384127675Sbms if (!TTEST(up->uh_dport)) { 385127675Sbms udpipaddr_print(ip, -1, -1); 386127675Sbms (void)printf("[|udp]"); 38717680Spst return; 38817680Spst } 389127675Sbms 390127675Sbms sport = EXTRACT_16BITS(&up->uh_sport); 391127675Sbms dport = EXTRACT_16BITS(&up->uh_dport); 392127675Sbms 39317680Spst if (length < sizeof(struct udphdr)) { 394127675Sbms udpipaddr_print(ip, sport, dport); 395127675Sbms (void)printf("truncated-udp %d", length); 39617680Spst return; 39717680Spst } 39817680Spst length -= sizeof(struct udphdr); 39917680Spst 400127675Sbms if (cp > snapend) { 401127675Sbms udpipaddr_print(ip, sport, dport); 402127675Sbms (void)printf("[|udp]"); 403127675Sbms return; 404127675Sbms } 405127675Sbms 406127675Sbms ulen = EXTRACT_16BITS(&up->uh_ulen); 40775118Sfenner if (ulen < 8) { 408127675Sbms udpipaddr_print(ip, sport, dport); 409127675Sbms (void)printf("truncated-udplength %d", ulen); 41075118Sfenner return; 41175118Sfenner } 41217680Spst if (packettype) { 413146778Ssam register struct sunrpc_msg *rp; 414146778Ssam enum sunrpc_msg_type direction; 41517680Spst 41617680Spst switch (packettype) { 41717680Spst 41817680Spst case PT_VAT: 419127675Sbms udpipaddr_print(ip, sport, dport); 420127675Sbms vat_print((void *)(up + 1), up); 42117680Spst break; 42217680Spst 42317680Spst case PT_WB: 424127675Sbms udpipaddr_print(ip, sport, dport); 42517680Spst wb_print((void *)(up + 1), length); 42617680Spst break; 42717680Spst 42817680Spst case PT_RPC: 429146778Ssam rp = (struct sunrpc_msg *)(up + 1); 430146778Ssam direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction); 431146778Ssam if (direction == SUNRPC_CALL) 43217680Spst sunrpcrequest_print((u_char *)rp, length, 43317680Spst (u_char *)ip); 43417680Spst else 43517680Spst nfsreply_print((u_char *)rp, length, 43617680Spst (u_char *)ip); /*XXX*/ 43717680Spst break; 43817680Spst 43917680Spst case PT_RTP: 440127675Sbms udpipaddr_print(ip, sport, dport); 44117680Spst rtp_print((void *)(up + 1), length, up); 44217680Spst break; 44317680Spst 44417680Spst case PT_RTCP: 445127675Sbms udpipaddr_print(ip, sport, dport); 44626183Sfenner while (cp < ep) 44726183Sfenner cp = rtcp_print(cp, ep); 44817680Spst break; 44956896Sfenner 45056896Sfenner case PT_SNMP: 451127675Sbms udpipaddr_print(ip, sport, dport); 45256896Sfenner snmp_print((const u_char *)(up + 1), length); 45356896Sfenner break; 45475118Sfenner 45575118Sfenner case PT_CNFP: 456127675Sbms udpipaddr_print(ip, sport, dport); 457127675Sbms cnfp_print(cp, (const u_char *)ip); 45875118Sfenner break; 459127675Sbms 460127675Sbms case PT_TFTP: 461127675Sbms udpipaddr_print(ip, sport, dport); 462127675Sbms tftp_print(cp, length); 463127675Sbms break; 464127675Sbms 465127675Sbms case PT_AODV: 466127675Sbms udpipaddr_print(ip, sport, dport); 467127675Sbms aodv_print((const u_char *)(up + 1), length, 468127675Sbms#ifdef INET6 469127675Sbms ip6 != NULL); 470127675Sbms#else 471146778Ssam 0); 472127675Sbms#endif 473127675Sbms break; 474251158Sdelphij 475251158Sdelphij case PT_RADIUS: 476251158Sdelphij udpipaddr_print(ip, sport, dport); 477251158Sdelphij radius_print(cp, length); 478251158Sdelphij break; 479251158Sdelphij 480251158Sdelphij case PT_VXLAN: 481251158Sdelphij udpipaddr_print(ip, sport, dport); 482251158Sdelphij vxlan_print((const u_char *)(up + 1), length); 483251158Sdelphij break; 48417680Spst } 48517680Spst return; 48617680Spst } 48717680Spst 48826183Sfenner if (!qflag) { 489146778Ssam register struct sunrpc_msg *rp; 490146778Ssam enum sunrpc_msg_type direction; 49117680Spst 492146778Ssam rp = (struct sunrpc_msg *)(up + 1); 49326183Sfenner if (TTEST(rp->rm_direction)) { 494146778Ssam direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction); 495146778Ssam if (dport == NFS_PORT && direction == SUNRPC_CALL) { 49626183Sfenner nfsreq_print((u_char *)rp, length, 49726183Sfenner (u_char *)ip); 49826183Sfenner return; 49926183Sfenner } 500146778Ssam if (sport == NFS_PORT && direction == SUNRPC_REPLY) { 50126183Sfenner nfsreply_print((u_char *)rp, length, 50226183Sfenner (u_char *)ip); 50326183Sfenner return; 50426183Sfenner } 50517680Spst#ifdef notdef 506146778Ssam if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) { 50726183Sfenner sunrpcrequest_print((u_char *)rp, length, (u_char *)ip); 50817680Spst return; 50917680Spst } 51026183Sfenner#endif 51117680Spst } 51226183Sfenner if (TTEST(((struct LAP *)cp)->type) && 51326183Sfenner ((struct LAP *)cp)->type == lapDDP && 51426183Sfenner (atalk_port(sport) || atalk_port(dport))) { 51526183Sfenner if (vflag) 51626183Sfenner fputs("kip ", stdout); 51775118Sfenner llap_print(cp, length); 51826183Sfenner return; 51926183Sfenner } 52017680Spst } 521127675Sbms udpipaddr_print(ip, sport, dport); 52217680Spst 523235530Sdelphij if (vflag && !Kflag && !fragmented) { 524235530Sdelphij /* Check the checksum, if possible. */ 525235530Sdelphij u_int16_t sum, udp_sum; 526235530Sdelphij 527235530Sdelphij /* 528235530Sdelphij * XXX - do this even if vflag == 1? 529235530Sdelphij * TCP does, and we do so for UDP-over-IPv6. 530235530Sdelphij */ 531235530Sdelphij if (IP_V(ip) == 4 && (vflag > 1)) { 532235530Sdelphij udp_sum = EXTRACT_16BITS(&up->uh_sum); 533235530Sdelphij if (udp_sum == 0) { 534235530Sdelphij (void)printf("[no cksum] "); 535235530Sdelphij } else if (TTEST2(cp[0], length)) { 536235530Sdelphij sum = udp_cksum(ip, up, length + sizeof(struct udphdr)); 537235530Sdelphij 538235530Sdelphij if (sum != 0) { 539235530Sdelphij (void)printf("[bad udp cksum 0x%04x -> 0x%04x!] ", 540235530Sdelphij udp_sum, 541235530Sdelphij in_cksum_shouldbe(udp_sum, sum)); 542235530Sdelphij } else 543235530Sdelphij (void)printf("[udp sum ok] "); 544235530Sdelphij } 54575118Sfenner } 54675118Sfenner#ifdef INET6 547235530Sdelphij else if (IP_V(ip) == 6 && ip6->ip6_plen) { 548235530Sdelphij /* for IPv6, UDP checksum is mandatory */ 549235530Sdelphij if (TTEST2(cp[0], length)) { 550235530Sdelphij sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr)); 551235530Sdelphij udp_sum = EXTRACT_16BITS(&up->uh_sum); 552235530Sdelphij 553235530Sdelphij if (sum != 0) { 554235530Sdelphij (void)printf("[bad udp cksum 0x%04x -> 0x%04x!] ", 555235530Sdelphij udp_sum, 556235530Sdelphij in_cksum_shouldbe(udp_sum, sum)); 557235530Sdelphij } else 558235530Sdelphij (void)printf("[udp sum ok] "); 559235530Sdelphij } 56075118Sfenner } 561235530Sdelphij#endif 56275118Sfenner } 56375118Sfenner 56417680Spst if (!qflag) { 56517680Spst#define ISPORT(p) (dport == (p) || sport == (p)) 56617680Spst if (ISPORT(NAMESERVER_PORT)) 567127675Sbms ns_print((const u_char *)(up + 1), length, 0); 568127675Sbms else if (ISPORT(MULTICASTDNS_PORT)) 569127675Sbms ns_print((const u_char *)(up + 1), length, 1); 57075118Sfenner else if (ISPORT(TIMED_PORT)) 571127675Sbms timed_print((const u_char *)(up + 1)); 57217680Spst else if (ISPORT(TFTP_PORT)) 57317680Spst tftp_print((const u_char *)(up + 1), length); 57417680Spst else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS)) 575127675Sbms bootp_print((const u_char *)(up + 1), length); 57617680Spst else if (ISPORT(RIP_PORT)) 57717680Spst rip_print((const u_char *)(up + 1), length); 578127675Sbms else if (ISPORT(AODV_PORT)) 579127675Sbms aodv_print((const u_char *)(up + 1), length, 580127675Sbms#ifdef INET6 581127675Sbms ip6 != NULL); 582127675Sbms#else 583146778Ssam 0); 584127675Sbms#endif 585146778Ssam else if (ISPORT(ISAKMP_PORT)) 586146778Ssam isakmp_print(gndo, (const u_char *)(up + 1), length, bp2); 587146778Ssam else if (ISPORT(ISAKMP_PORT_NATT)) 588146778Ssam isakmp_rfc3948_print(gndo, (const u_char *)(up + 1), length, bp2); 58956896Sfenner#if 1 /*???*/ 590146778Ssam else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2)) 591146778Ssam isakmp_print(gndo, (const u_char *)(up + 1), length, bp2); 59256896Sfenner#endif 59317680Spst else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT)) 59417680Spst snmp_print((const u_char *)(up + 1), length); 59517680Spst else if (ISPORT(NTP_PORT)) 59617680Spst ntp_print((const u_char *)(up + 1), length); 59717680Spst else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT)) 598127675Sbms krb_print((const void *)(up + 1)); 59956896Sfenner else if (ISPORT(L2TP_PORT)) 60056896Sfenner l2tp_print((const u_char *)(up + 1), length); 60198527Sfenner#ifdef TCPDUMP_DO_SMB 602127675Sbms else if (ISPORT(NETBIOS_NS_PORT)) 60356896Sfenner nbt_udp137_print((const u_char *)(up + 1), length); 604127675Sbms else if (ISPORT(NETBIOS_DGRAM_PORT)) 605127675Sbms nbt_udp138_print((const u_char *)(up + 1), length); 60698527Sfenner#endif 60717680Spst else if (dport == 3456) 608127675Sbms vat_print((const void *)(up + 1), up); 60998527Sfenner else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT)) 61098527Sfenner zephyr_print((const void *)(up + 1), length); 611127675Sbms /* 612127675Sbms * Since there are 10 possible ports to check, I think 613127675Sbms * a <> test would be more efficient 614127675Sbms */ 615127675Sbms else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) || 616127675Sbms (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH)) 617127675Sbms rx_print((const void *)(up + 1), length, sport, dport, 618127675Sbms (u_char *) ip); 61956896Sfenner#ifdef INET6 62056896Sfenner else if (ISPORT(RIPNG_PORT)) 62156896Sfenner ripng_print((const u_char *)(up + 1), length); 622235530Sdelphij else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) 623127675Sbms dhcp6_print((const u_char *)(up + 1), length); 624235530Sdelphij else if (ISPORT(BABEL_PORT) || ISPORT(BABEL_PORT_OLD)) 625235530Sdelphij babel_print((const u_char *)(up + 1), length); 62656896Sfenner#endif /*INET6*/ 62717680Spst /* 62817680Spst * Kludge in test for whiteboard packets. 62917680Spst */ 63017680Spst else if (dport == 4567) 63117680Spst wb_print((const void *)(up + 1), length); 63256896Sfenner else if (ISPORT(CISCO_AUTORP_PORT)) 63356896Sfenner cisco_autorp_print((const void *)(up + 1), length); 63475118Sfenner else if (ISPORT(RADIUS_PORT) || 63598527Sfenner ISPORT(RADIUS_NEW_PORT) || 636127675Sbms ISPORT(RADIUS_ACCOUNTING_PORT) || 63798527Sfenner ISPORT(RADIUS_NEW_ACCOUNTING_PORT) ) 63898527Sfenner radius_print((const u_char *)(up+1), length); 63998527Sfenner else if (dport == HSRP_PORT) 640127675Sbms hsrp_print((const u_char *)(up + 1), length); 64198527Sfenner else if (ISPORT(LWRES_PORT)) 64298527Sfenner lwres_print((const u_char *)(up + 1), length); 643214478Srpaulo else if (ISPORT(LDP_PORT)) 644127675Sbms ldp_print((const u_char *)(up + 1), length); 645214478Srpaulo else if (ISPORT(OLSR_PORT)) 646214478Srpaulo olsr_print((const u_char *)(up + 1), length, 647214478Srpaulo#if INET6 648214478Srpaulo (IP_V(ip) == 6) ? 1 : 0); 649214478Srpaulo#else 650214478Srpaulo 0); 651214478Srpaulo#endif 652214478Srpaulo else if (ISPORT(MPLS_LSP_PING_PORT)) 653146778Ssam lspping_print((const u_char *)(up + 1), length); 654127675Sbms else if (dport == BFD_CONTROL_PORT || 655127675Sbms dport == BFD_ECHO_PORT ) 656127675Sbms bfd_print((const u_char *)(up+1), length, dport); 657146778Ssam else if (ISPORT(LMP_PORT)) 658146778Ssam lmp_print((const u_char *)(up + 1), length); 659190207Srpaulo else if (ISPORT(VQP_PORT)) 660190207Srpaulo vqp_print((const u_char *)(up + 1), length); 661190207Srpaulo else if (ISPORT(SFLOW_PORT)) 662190207Srpaulo sflow_print((const u_char *)(up + 1), length); 663190207Srpaulo else if (dport == LWAPP_CONTROL_PORT) 664190207Srpaulo lwapp_control_print((const u_char *)(up + 1), length, 1); 665190207Srpaulo else if (sport == LWAPP_CONTROL_PORT) 666190207Srpaulo lwapp_control_print((const u_char *)(up + 1), length, 0); 667190207Srpaulo else if (ISPORT(LWAPP_DATA_PORT)) 668190207Srpaulo lwapp_data_print((const u_char *)(up + 1), length); 669146778Ssam else if (ISPORT(SIP_PORT)) 670146778Ssam sip_print((const u_char *)(up + 1), length); 671146778Ssam else if (ISPORT(SYSLOG_PORT)) 672146778Ssam syslog_print((const u_char *)(up + 1), length); 673251158Sdelphij else if (ISPORT(OTV_PORT)) 674251158Sdelphij otv_print((const u_char *)(up + 1), length); 67517680Spst else 676146778Ssam (void)printf("UDP, length %u", 67717680Spst (u_int32_t)(ulen - sizeof(*up))); 67817680Spst#undef ISPORT 67917680Spst } else 680146778Ssam (void)printf("UDP, length %u", (u_int32_t)(ulen - sizeof(*up))); 68117680Spst} 682146778Ssam 683146778Ssam 684146778Ssam/* 685146778Ssam * Local Variables: 686146778Ssam * c-style: whitesmith 687146778Ssam * c-basic-offset: 8 688146778Ssam * End: 689146778Ssam */ 690146778Ssam 691