contrib/tcpdump/print-udp.c

   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  * $FreeBSD$
  22  */
  23
  24 #define NETDISSECT_REWORKED
  25 #ifdef HAVE_CONFIG_H
  26 #include "config.h"
  27 #endif
  28
  29 #include <tcpdump-stdinc.h>
  30
  31 #include "interface.h"
  32 #include "addrtoname.h"
  33 #include "extract.h"
  34 #include "appletalk.h"
  35
  36 #include "udp.h"
  37
  38 #include "ip.h"
  39 #ifdef INET6
  40 #include "ip6.h"
  41 #endif
  42 #include "ipproto.h"
  43 #include "rpc_auth.h"
  44 #include "rpc_msg.h"
  45
  46 #include "nameser.h"
  47 #include "nfs.h"
  48
  49 struct rtcphdr {
  50         uint16_t rh_flags;      /* T:2 P:1 CNT:5 PT:8 */
  51         uint16_t rh_len;        /* length of message (in words) */
  52         uint32_t rh_ssrc;       /* synchronization src id */
  53 };
  54
  55 typedef struct {
  56         uint32_t upper; /* more significant 32 bits */
  57         uint32_t lower; /* less significant 32 bits */
  58 } ntp64;
  59
  60 /*
  61  * Sender report.
  62  */
  63 struct rtcp_sr {
  64         ntp64 sr_ntp;           /* 64-bit ntp timestamp */
  65         uint32_t sr_ts; /* reference media timestamp */
  66         uint32_t sr_np; /* no. packets sent */
  67         uint32_t sr_nb; /* no. bytes sent */
  68 };
  69
  70 /*
  71  * Receiver report.
  72  * Time stamps are middle 32-bits of ntp timestamp.
  73  */
  74 struct rtcp_rr {
  75         uint32_t rr_srcid;      /* sender being reported */
  76         uint32_t rr_nl; /* no. packets lost */
  77         uint32_t rr_ls; /* extended last seq number received */
  78         uint32_t rr_dv; /* jitter (delay variance) */
  79         uint32_t rr_lsr;        /* orig. ts from last rr from this src  */
  80         uint32_t rr_dlsr;       /* time from recpt of last rr to xmit time */
  81 };
  82
  83 /*XXX*/
  84 #define RTCP_PT_SR      200
  85 #define RTCP_PT_RR      201
  86 #define RTCP_PT_SDES    202
  87 #define         RTCP_SDES_CNAME 1
  88 #define         RTCP_SDES_NAME  2
  89 #define         RTCP_SDES_EMAIL 3
  90 #define         RTCP_SDES_PHONE 4
  91 #define         RTCP_SDES_LOC   5
  92 #define         RTCP_SDES_TOOL  6
  93 #define         RTCP_SDES_NOTE  7
  94 #define         RTCP_SDES_PRIV  8
  95 #define RTCP_PT_BYE     203
  96 #define RTCP_PT_APP     204
  97
  98 static void
  99 vat_print(netdissect_options *ndo, const void *hdr, register const struct udphdr *up)
 100 {
 101         /* vat/vt audio */
 102         u_int ts = *(uint16_t *)hdr;
 103         if ((ts & 0xf060) != 0) {
 104                 /* probably vt */
 105                 ND_PRINT((ndo, "udp/vt %u %d / %d",
 106                              (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),
 107                              ts & 0x3ff, ts >> 10));
 108         } else {
 109                 /* probably vat */
 110                 uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
 111                 uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
 112                 ND_PRINT((ndo, "udp/vat %u c%d %u%s",
 113                         (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),
 114                         i0 & 0xffff,
 115                         i1, i0 & 0x800000? "*" : ""));
 116                 /* audio format */
 117                 if (i0 & 0x1f0000)
 118                         ND_PRINT((ndo, " f%d", (i0 >> 16) & 0x1f));
 119                 if (i0 & 0x3f000000)
 120                         ND_PRINT((ndo, " s%d", (i0 >> 24) & 0x3f));
 121         }
 122 }
 123
 124 static void
 125 rtp_print(netdissect_options *ndo, const void *hdr, u_int len,
 126           register const struct udphdr *up)
 127 {
 128         /* rtp v1 or v2 */
 129         u_int *ip = (u_int *)hdr;
 130         u_int hasopt, hasext, contype, hasmarker;
 131         uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
 132         uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
 133         u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;
 134         const char * ptype;
 135
 136         ip += 2;
 137         len >>= 2;
 138         len -= 2;
 139         hasopt = 0;
 140         hasext = 0;
 141         if ((i0 >> 30) == 1) {
 142                 /* rtp v1 */
 143                 hasopt = i0 & 0x800000;
 144                 contype = (i0 >> 16) & 0x3f;
 145                 hasmarker = i0 & 0x400000;
 146                 ptype = "rtpv1";
 147         } else {
 148                 /* rtp v2 */
 149                 hasext = i0 & 0x10000000;
 150                 contype = (i0 >> 16) & 0x7f;
 151                 hasmarker = i0 & 0x800000;
 152                 dlen -= 4;
 153                 ptype = "rtp";
 154                 ip += 1;
 155                 len -= 1;
 156         }
 157         ND_PRINT((ndo, "udp/%s %d c%d %s%s %d %u",
 158                 ptype,
 159                 dlen,
 160                 contype,
 161                 (hasopt || hasext)? "+" : "",
 162                 hasmarker? "*" : "",
 163                 i0 & 0xffff,
 164                 i1));
 165         if (ndo->ndo_vflag) {
 166                 ND_PRINT((ndo, " %u", EXTRACT_32BITS(&((u_int *)hdr)[2])));
 167                 if (hasopt) {
 168                         u_int i2, optlen;
 169                         do {
 170                                 i2 = ip[0];
 171                                 optlen = (i2 >> 16) & 0xff;
 172                                 if (optlen == 0 || optlen > len) {
 173                                         ND_PRINT((ndo, " !opt"));
 174                                         return;
 175                                 }
 176                                 ip += optlen;
 177                                 len -= optlen;
 178                         } while ((int)i2 >= 0);
 179                 }
 180                 if (hasext) {
 181                         u_int i2, extlen;
 182                         i2 = ip[0];
 183                         extlen = (i2 & 0xffff) + 1;
 184                         if (extlen > len) {
 185                                 ND_PRINT((ndo, " !ext"));
 186                                 return;
 187                         }
 188                         ip += extlen;
 189                 }
 190                 if (contype == 0x1f) /*XXX H.261 */
 191                         ND_PRINT((ndo, " 0x%04x", ip[0] >> 16));
 192         }
 193 }
 194
 195 static const u_char *
 196 rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)
 197 {
 198         /* rtp v2 control (rtcp) */
 199         struct rtcp_rr *rr = 0;
 200         struct rtcp_sr *sr;
 201         struct rtcphdr *rh = (struct rtcphdr *)hdr;
 202         u_int len;
 203         uint16_t flags;
 204         int cnt;
 205         double ts, dts;
 206         if ((u_char *)(rh + 1) > ep) {
 207                 ND_PRINT((ndo, " [|rtcp]"));
 208                 return (ep);
 209         }
 210         len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
 211         flags = EXTRACT_16BITS(&rh->rh_flags);
 212         cnt = (flags >> 8) & 0x1f;
 213         switch (flags & 0xff) {
 214         case RTCP_PT_SR:
 215                 sr = (struct rtcp_sr *)(rh + 1);
 216                 ND_PRINT((ndo, " sr"));
 217                 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
 218                         ND_PRINT((ndo, " [%d]", len));
 219                 if (ndo->ndo_vflag)
 220                         ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
 221                 if ((u_char *)(sr + 1) > ep) {
 222                         ND_PRINT((ndo, " [|rtcp]"));
 223                         return (ep);
 224                 }
 225                 ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
 226                     ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
 227                     4294967296.0);
 228                 ND_PRINT((ndo, " @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
 229                     EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb)));
 230                 rr = (struct rtcp_rr *)(sr + 1);
 231                 break;
 232         case RTCP_PT_RR:
 233                 ND_PRINT((ndo, " rr"));
 234                 if (len != cnt * sizeof(*rr) + sizeof(*rh))
 235                         ND_PRINT((ndo, " [%d]", len));
 236                 rr = (struct rtcp_rr *)(rh + 1);
 237                 if (ndo->ndo_vflag)
 238                         ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
 239                 break;
 240         case RTCP_PT_SDES:
 241                 ND_PRINT((ndo, " sdes %d", len));
 242                 if (ndo->ndo_vflag)
 243                         ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
 244                 cnt = 0;
 245                 break;
 246         case RTCP_PT_BYE:
 247                 ND_PRINT((ndo, " bye %d", len));
 248                 if (ndo->ndo_vflag)
 249                         ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
 250                 cnt = 0;
 251                 break;
 252         default:
 253                 ND_PRINT((ndo, " type-0x%x %d", flags & 0xff, len));
 254                 cnt = 0;
 255                 break;
 256         }
 257         if (cnt > 1)
 258                 ND_PRINT((ndo, " c%d", cnt));
 259         while (--cnt >= 0) {
 260                 if ((u_char *)(rr + 1) > ep) {
 261                         ND_PRINT((ndo, " [|rtcp]"));
 262                         return (ep);
 263                 }
 264                 if (ndo->ndo_vflag)
 265                         ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rr->rr_srcid)));
 266                 ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.;
 267                 dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.;
 268                 ND_PRINT((ndo, " %ul %us %uj @%.2f+%.2f",
 269                     EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff,
 270                     EXTRACT_32BITS(&rr->rr_ls),
 271                     EXTRACT_32BITS(&rr->rr_dv), ts, dts));
 272         }
 273         return (hdr + len);
 274 }
 275
 276 static int udp_cksum(netdissect_options *ndo, register const struct ip *ip,
 277                      register const struct udphdr *up,
 278                      register u_int len)
 279 {
 280         return nextproto4_cksum(ndo, ip, (const uint8_t *)(void *)up, len, len,
 281                                 IPPROTO_UDP);
 282 }
 283
 284 #ifdef INET6
 285 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
 286         u_int len)
 287 {
 288         return nextproto6_cksum(ip6, (const uint8_t *)(void *)up, len, len,
 289             IPPROTO_UDP);
 290 }
 291 #endif
 292
 293 static void
 294 udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport)
 295 {
 296 #ifdef INET6
 297         const struct ip6_hdr *ip6;
 298
 299         if (IP_V(ip) == 6)
 300                 ip6 = (const struct ip6_hdr *)ip;
 301         else
 302                 ip6 = NULL;
 303
 304         if (ip6) {
 305                 if (ip6->ip6_nxt == IPPROTO_UDP) {
 306                         if (sport == -1) {
 307                                 ND_PRINT((ndo, "%s > %s: ",
 308                                         ip6addr_string(ndo, &ip6->ip6_src),
 309                                         ip6addr_string(ndo, &ip6->ip6_dst)));
 310                         } else {
 311                                 ND_PRINT((ndo, "%s.%s > %s.%s: ",
 312                                         ip6addr_string(ndo, &ip6->ip6_src),
 313                                         udpport_string(sport),
 314                                         ip6addr_string(ndo, &ip6->ip6_dst),
 315                                         udpport_string(dport)));
 316                         }
 317                 } else {
 318                         if (sport != -1) {
 319                                 ND_PRINT((ndo, "%s > %s: ",
 320                                         udpport_string(sport),
 321                                         udpport_string(dport)));
 322                         }
 323                 }
 324         } else
 325 #endif /*INET6*/
 326         {
 327                 if (ip->ip_p == IPPROTO_UDP) {
 328                         if (sport == -1) {
 329                                 ND_PRINT((ndo, "%s > %s: ",
 330                                         ipaddr_string(ndo, &ip->ip_src),
 331                                         ipaddr_string(ndo, &ip->ip_dst)));
 332                         } else {
 333                                 ND_PRINT((ndo, "%s.%s > %s.%s: ",
 334                                         ipaddr_string(ndo, &ip->ip_src),
 335                                         udpport_string(sport),
 336                                         ipaddr_string(ndo, &ip->ip_dst),
 337                                         udpport_string(dport)));
 338                         }
 339                 } else {
 340                         if (sport != -1) {
 341                                 ND_PRINT((ndo, "%s > %s: ",
 342                                         udpport_string(sport),
 343                                         udpport_string(dport)));
 344                         }
 345                 }
 346         }
 347 }
 348
 349 void
 350 udp_print(netdissect_options *ndo, register const u_char *bp, u_int length,
 351           register const u_char *bp2, int fragmented)
 352 {
 353         register const struct udphdr *up;
 354         register const struct ip *ip;
 355         register const u_char *cp;
 356         register const u_char *ep = bp + length;
 357         uint16_t sport, dport, ulen;
 358 #ifdef INET6
 359         register const struct ip6_hdr *ip6;
 360 #endif
 361
 362         if (ep > ndo->ndo_snapend)
 363                 ep = ndo->ndo_snapend;
 364         up = (struct udphdr *)bp;
 365         ip = (struct ip *)bp2;
 366 #ifdef INET6
 367         if (IP_V(ip) == 6)
 368                 ip6 = (struct ip6_hdr *)bp2;
 369         else
 370                 ip6 = NULL;
 371 #endif /*INET6*/
 372         if (!ND_TTEST(up->uh_dport)) {
 373                 udpipaddr_print(ndo, ip, -1, -1);
 374                 ND_PRINT((ndo, "[|udp]"));
 375                 return;
 376         }
 377
 378         sport = EXTRACT_16BITS(&up->uh_sport);
 379         dport = EXTRACT_16BITS(&up->uh_dport);
 380
 381         if (length < sizeof(struct udphdr)) {
 382                 udpipaddr_print(ndo, ip, sport, dport);
 383                 ND_PRINT((ndo, "truncated-udp %d", length));
 384                 return;
 385         }
 386         ulen = EXTRACT_16BITS(&up->uh_ulen);
 387         if (ulen < sizeof(struct udphdr)) {
 388                 udpipaddr_print(ndo, ip, sport, dport);
 389                 ND_PRINT((ndo, "truncated-udplength %d", ulen));
 390                 return;
 391         }
 392         ulen -= sizeof(struct udphdr);
 393         length -= sizeof(struct udphdr);
 394         if (ulen < length)
 395                 length = ulen;
 396
 397         cp = (u_char *)(up + 1);
 398         if (cp > ndo->ndo_snapend) {
 399                 udpipaddr_print(ndo, ip, sport, dport);
 400                 ND_PRINT((ndo, "[|udp]"));
 401                 return;
 402         }
 403
 404         if (ndo->ndo_packettype) {
 405                 register struct sunrpc_msg *rp;
 406                 enum sunrpc_msg_type direction;
 407
 408                 switch (ndo->ndo_packettype) {
 409
 410                 case PT_VAT:
 411                         udpipaddr_print(ndo, ip, sport, dport);
 412                         vat_print(ndo, (void *)(up + 1), up);
 413                         break;
 414
 415                 case PT_WB:
 416                         udpipaddr_print(ndo, ip, sport, dport);
 417                         wb_print(ndo, (void *)(up + 1), length);
 418                         break;
 419
 420                 case PT_RPC:
 421                         rp = (struct sunrpc_msg *)(up + 1);
 422                         direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
 423                         if (direction == SUNRPC_CALL)
 424                                 sunrpcrequest_print(ndo, (u_char *)rp, length,
 425                                     (u_char *)ip);
 426                         else
 427                                 nfsreply_print(ndo, (u_char *)rp, length,
 428                                     (u_char *)ip);                      /*XXX*/
 429                         break;
 430
 431                 case PT_RTP:
 432                         udpipaddr_print(ndo, ip, sport, dport);
 433                         rtp_print(ndo, (void *)(up + 1), length, up);
 434                         break;
 435
 436                 case PT_RTCP:
 437                         udpipaddr_print(ndo, ip, sport, dport);
 438                         while (cp < ep)
 439                                 cp = rtcp_print(ndo, cp, ep);
 440                         break;
 441
 442                 case PT_SNMP:
 443                         udpipaddr_print(ndo, ip, sport, dport);
 444                         snmp_print(ndo, (const u_char *)(up + 1), length);
 445                         break;
 446
 447                 case PT_CNFP:
 448                         udpipaddr_print(ndo, ip, sport, dport);
 449                         cnfp_print(ndo, cp);
 450                         break;
 451
 452                 case PT_TFTP:
 453                         udpipaddr_print(ndo, ip, sport, dport);
 454                         tftp_print(ndo, cp, length);
 455                         break;
 456
 457                 case PT_AODV:
 458                         udpipaddr_print(ndo, ip, sport, dport);
 459                         aodv_print(ndo, (const u_char *)(up + 1), length,
 460 #ifdef INET6
 461                             ip6 != NULL);
 462 #else
 463                             0);
 464 #endif
 465                         break;
 466
 467                 case PT_RADIUS:
 468                         udpipaddr_print(ndo, ip, sport, dport);
 469                         radius_print(ndo, cp, length);
 470                         break;
 471
 472                 case PT_VXLAN:
 473                         udpipaddr_print(ndo, ip, sport, dport);
 474                         vxlan_print(ndo, (const u_char *)(up + 1), length);
 475                         break;
 476
 477                 case PT_PGM:
 478                 case PT_PGM_ZMTP1:
 479                         udpipaddr_print(ndo, ip, sport, dport);
 480                         pgm_print(ndo, cp, length, bp2);
 481                         break;
 482                 case PT_LMP:
 483                         udpipaddr_print(ndo, ip, sport, dport);
 484                         lmp_print(ndo, cp, length);
 485                         break;
 486                 }
 487                 return;
 488         }
 489
 490         udpipaddr_print(ndo, ip, sport, dport);
 491         if (!ndo->ndo_qflag) {
 492                 register struct sunrpc_msg *rp;
 493                 enum sunrpc_msg_type direction;
 494
 495                 rp = (struct sunrpc_msg *)(up + 1);
 496                 if (ND_TTEST(rp->rm_direction)) {
 497                         direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
 498                         if (dport == NFS_PORT && direction == SUNRPC_CALL) {
 499                                 ND_PRINT((ndo, "NFS request xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
 500                                 nfsreq_print_noaddr(ndo, (u_char *)rp, length,
 501                                     (u_char *)ip);
 502                                 return;
 503                         }
 504                         if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
 505                                 ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
 506                                 nfsreply_print_noaddr(ndo, (u_char *)rp, length,
 507                                     (u_char *)ip);
 508                                 return;
 509                         }
 510 #ifdef notdef
 511                         if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
 512                                 sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
 513                                 return;
 514                         }
 515 #endif
 516                 }
 517                 if (ND_TTEST(((struct LAP *)cp)->type) &&
 518                     ((struct LAP *)cp)->type == lapDDP &&
 519                     (atalk_port(sport) || atalk_port(dport))) {
 520                         if (ndo->ndo_vflag)
 521                                 ND_PRINT((ndo, "kip "));
 522                         llap_print(ndo, cp, length);
 523                         return;
 524                 }
 525         }
 526
 527         if (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) {
 528                 /* Check the checksum, if possible. */
 529                 uint16_t sum, udp_sum;
 530
 531                 /*
 532                  * XXX - do this even if vflag == 1?
 533                  * TCP does, and we do so for UDP-over-IPv6.
 534                  */
 535                 if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) {
 536                         udp_sum = EXTRACT_16BITS(&up->uh_sum);
 537                         if (udp_sum == 0) {
 538                                 ND_PRINT((ndo, "[no cksum] "));
 539                         } else if (ND_TTEST2(cp[0], length)) {
 540                                 sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr));
 541
 542                                 if (sum != 0) {
 543                                         ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",
 544                                             udp_sum,
 545                                             in_cksum_shouldbe(udp_sum, sum)));
 546                                 } else
 547                                         ND_PRINT((ndo, "[udp sum ok] "));
 548                         }
 549                 }
 550 #ifdef INET6
 551                 else if (IP_V(ip) == 6 && ip6->ip6_plen) {
 552                         /* for IPv6, UDP checksum is mandatory */
 553                         if (ND_TTEST2(cp[0], length)) {
 554                                 sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));
 555                                 udp_sum = EXTRACT_16BITS(&up->uh_sum);
 556
 557                                 if (sum != 0) {
 558                                         ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",
 559                                             udp_sum,
 560                                             in_cksum_shouldbe(udp_sum, sum)));
 561                                 } else
 562                                         ND_PRINT((ndo, "[udp sum ok] "));
 563                         }
 564                 }
 565 #endif
 566         }
 567
 568         if (!ndo->ndo_qflag) {
 569 #define ISPORT(p) (dport == (p) || sport == (p))
 570                 if (ISPORT(NAMESERVER_PORT))
 571                         ns_print(ndo, (const u_char *)(up + 1), length, 0);
 572                 else if (ISPORT(MULTICASTDNS_PORT))
 573                         ns_print(ndo, (const u_char *)(up + 1), length, 1);
 574                 else if (ISPORT(TIMED_PORT))
 575                         timed_print(ndo, (const u_char *)(up + 1));
 576                 else if (ISPORT(TFTP_PORT))
 577                         tftp_print(ndo, (const u_char *)(up + 1), length);
 578                 else if (ISPORT(BOOTPC_PORT) || ISPORT(BOOTPS_PORT))
 579                         bootp_print(ndo, (const u_char *)(up + 1), length);
 580                 else if (ISPORT(RIP_PORT))
 581                         rip_print(ndo, (const u_char *)(up + 1), length);
 582                 else if (ISPORT(AODV_PORT))
 583                         aodv_print(ndo, (const u_char *)(up + 1), length,
 584 #ifdef INET6
 585                             ip6 != NULL);
 586 #else
 587                             0);
 588 #endif
 589                 else if (ISPORT(ISAKMP_PORT))
 590                          isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
 591                 else if (ISPORT(ISAKMP_PORT_NATT))
 592                          isakmp_rfc3948_print(ndo, (const u_char *)(up + 1), length, bp2);
 593 #if 1 /*???*/
 594                 else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
 595                         isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
 596 #endif
 597                 else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
 598                         snmp_print(ndo, (const u_char *)(up + 1), length);
 599                 else if (ISPORT(NTP_PORT))
 600                         ntp_print(ndo, (const u_char *)(up + 1), length);
 601                 else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))
 602                         krb_print(ndo, (const void *)(up + 1));
 603                 else if (ISPORT(L2TP_PORT))
 604                         l2tp_print(ndo, (const u_char *)(up + 1), length);
 605 #ifdef TCPDUMP_DO_SMB
 606                 else if (ISPORT(NETBIOS_NS_PORT))
 607                         nbt_udp137_print(ndo, (const u_char *)(up + 1), length);
 608                 else if (ISPORT(NETBIOS_DGRAM_PORT))
 609                         nbt_udp138_print(ndo, (const u_char *)(up + 1), length);
 610 #endif
 611                 else if (dport == VAT_PORT)
 612                         vat_print(ndo, (const void *)(up + 1), up);
 613                 else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT))
 614                         zephyr_print(ndo, (const void *)(up + 1), length);
 615                 /*
 616                  * Since there are 10 possible ports to check, I think
 617                  * a <> test would be more efficient
 618                  */
 619                 else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
 620                          (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
 621                         rx_print(ndo, (const void *)(up + 1), length, sport, dport,
 622                                  (u_char *) ip);
 623 #ifdef INET6
 624                 else if (ISPORT(RIPNG_PORT))
 625                         ripng_print(ndo, (const u_char *)(up + 1), length);
 626                 else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT))
 627                         dhcp6_print(ndo, (const u_char *)(up + 1), length);
 628                 else if (ISPORT(AHCP_PORT))
 629                         ahcp_print(ndo, (const u_char *)(up + 1), length);
 630                 else if (ISPORT(BABEL_PORT) || ISPORT(BABEL_PORT_OLD))
 631                         babel_print(ndo, (const u_char *)(up + 1), length);
 632 #endif /*INET6*/
 633                 /*
 634                  * Kludge in test for whiteboard packets.
 635                  */
 636                 else if (dport == WB_PORT)
 637                         wb_print(ndo, (const void *)(up + 1), length);
 638                 else if (ISPORT(CISCO_AUTORP_PORT))
 639                         cisco_autorp_print(ndo, (const void *)(up + 1), length);
 640                 else if (ISPORT(RADIUS_PORT) ||
 641                          ISPORT(RADIUS_NEW_PORT) ||
 642                          ISPORT(RADIUS_ACCOUNTING_PORT) ||
 643                          ISPORT(RADIUS_NEW_ACCOUNTING_PORT) ||
 644                          ISPORT(RADIUS_COA_PORT) )
 645                         radius_print(ndo, (const u_char *)(up+1), length);
 646                 else if (dport == HSRP_PORT)
 647                         hsrp_print(ndo, (const u_char *)(up + 1), length);
 648                 else if (ISPORT(LWRES_PORT))
 649                         lwres_print(ndo, (const u_char *)(up + 1), length);
 650                 else if (ISPORT(LDP_PORT))
 651                         ldp_print(ndo, (const u_char *)(up + 1), length);
 652                 else if (ISPORT(OLSR_PORT))
 653                         olsr_print(ndo, (const u_char *)(up + 1), length,
 654 #if INET6
 655                                         (IP_V(ip) == 6) ? 1 : 0);
 656 #else
 657                                         0);
 658 #endif
 659                 else if (ISPORT(MPLS_LSP_PING_PORT))
 660                         lspping_print(ndo, (const u_char *)(up + 1), length);
 661                 else if (dport == BFD_CONTROL_PORT ||
 662                          dport == BFD_ECHO_PORT )
 663                         bfd_print(ndo, (const u_char *)(up+1), length, dport);
 664                 else if (ISPORT(LMP_PORT))
 665                         lmp_print(ndo, (const u_char *)(up + 1), length);
 666                 else if (ISPORT(VQP_PORT))
 667                         vqp_print(ndo, (const u_char *)(up + 1), length);
 668                 else if (ISPORT(SFLOW_PORT))
 669                         sflow_print(ndo, (const u_char *)(up + 1), length);
 670                 else if (dport == LWAPP_CONTROL_PORT)
 671                         lwapp_control_print(ndo, (const u_char *)(up + 1), length, 1);
 672                 else if (sport == LWAPP_CONTROL_PORT)
 673                         lwapp_control_print(ndo, (const u_char *)(up + 1), length, 0);
 674                 else if (ISPORT(LWAPP_DATA_PORT))
 675                         lwapp_data_print(ndo, (const u_char *)(up + 1), length);
 676                 else if (ISPORT(SIP_PORT))
 677                         sip_print(ndo, (const u_char *)(up + 1), length);
 678                 else if (ISPORT(SYSLOG_PORT))
 679                         syslog_print(ndo, (const u_char *)(up + 1), length);
 680                 else if (ISPORT(OTV_PORT))
 681                         otv_print(ndo, (const u_char *)(up + 1), length);
 682                 else if (ISPORT(VXLAN_PORT))
 683                         vxlan_print(ndo, (const u_char *)(up + 1), length);
 684                 else if (ISPORT(GENEVE_PORT))
 685                         geneve_print(ndo, (const u_char *)(up + 1), length);
 686                 else {
 687                         if (ulen > length)
 688                                 ND_PRINT((ndo, "UDP, bad length %u > %u",
 689                                     ulen, length));
 690                         else
 691                                 ND_PRINT((ndo, "UDP, length %u", ulen));
 692                 }
 693 #undef ISPORT
 694         } else {
 695                 if (ulen > length)
 696                         ND_PRINT((ndo, "UDP, bad length %u > %u",
 697                             ulen, length));
 698                 else
 699                         ND_PRINT((ndo, "UDP, length %u", ulen));
 700         }
 701 }
 702
 703
 704 /*
 705  * Local Variables:
 706  * c-style: whitesmith
 707  * c-basic-offset: 8
 708  * End:
 709  */
 710