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 #ifndef lint 25 static const char rcsid[] = 26 "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.90 2000/12/23 20:55:22 guy Exp $ (LBL)"; 27 #endif 28 29 #ifdef HAVE_CONFIG_H 30 #include "config.h" 31 #endif 32 33 #include <sys/param.h> 34 #include <sys/time.h> 35 36 #include <netinet/in.h> 37 38 #ifdef SEGSIZE 39 #undef SEGSIZE 40 #endif 41 #include <arpa/tftp.h> 42 43 #include <rpc/rpc.h> 44 45 #include <stdio.h> 46 #include <string.h> 47 48 #include "interface.h" 49 #include "addrtoname.h" 50 #include "appletalk.h" 51 52 #include "udp.h" 53 54 #include "ip.h" 55 #ifdef INET6 56 #include "ip6.h" 57 #endif 58 59 #ifdef NOERROR 60 #undef NOERROR /* Solaris sucks */ 61 #endif 62 #ifdef T_UNSPEC 63 #undef T_UNSPEC /* SINIX does too */ 64 #endif 65 #include "nameser.h" 66 #include "nfs.h" 67 #include "bootp.h" 68 69 struct rtcphdr { 70 u_int16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */ 71 u_int16_t rh_len; /* length of message (in words) */ 72 u_int32_t rh_ssrc; /* synchronization src id */ 73 }; 74 75 typedef struct { 76 u_int32_t upper; /* more significant 32 bits */ 77 u_int32_t lower; /* less significant 32 bits */ 78 } ntp64; 79 80 /* 81 * Sender report. 82 */ 83 struct rtcp_sr { 84 ntp64 sr_ntp; /* 64-bit ntp timestamp */ 85 u_int32_t sr_ts; /* reference media timestamp */ 86 u_int32_t sr_np; /* no. packets sent */ 87 u_int32_t sr_nb; /* no. bytes sent */ 88 }; 89 90 /* 91 * Receiver report. 92 * Time stamps are middle 32-bits of ntp timestamp. 93 */ 94 struct rtcp_rr { 95 u_int32_t rr_srcid; /* sender being reported */ 96 u_int32_t rr_nl; /* no. packets lost */ 97 u_int32_t rr_ls; /* extended last seq number received */ 98 u_int32_t rr_dv; /* jitter (delay variance) */ 99 u_int32_t rr_lsr; /* orig. ts from last rr from this src */ 100 u_int32_t rr_dlsr; /* time from recpt of last rr to xmit time */ 101 }; 102 103 /*XXX*/ 104 #define RTCP_PT_SR 200 105 #define RTCP_PT_RR 201 106 #define RTCP_PT_SDES 202 107 #define RTCP_SDES_CNAME 1 108 #define RTCP_SDES_NAME 2 109 #define RTCP_SDES_EMAIL 3 110 #define RTCP_SDES_PHONE 4 111 #define RTCP_SDES_LOC 5 112 #define RTCP_SDES_TOOL 6 113 #define RTCP_SDES_NOTE 7 114 #define RTCP_SDES_PRIV 8 115 #define RTCP_PT_BYE 203 116 #define RTCP_PT_APP 204 117 118 static void 119 vat_print(const void *hdr, u_int len, register const struct udphdr *up) 120 { 121 /* vat/vt audio */ 122 u_int ts = *(u_int16_t *)hdr; 123 if ((ts & 0xf060) != 0) { 124 /* probably vt */ 125 (void)printf(" udp/vt %u %d / %d", 126 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up)), 127 ts & 0x3ff, ts >> 10); 128 } else { 129 /* probably vat */ 130 u_int32_t i0 = (u_int32_t)ntohl(((u_int *)hdr)[0]); 131 u_int32_t i1 = (u_int32_t)ntohl(((u_int *)hdr)[1]); 132 printf(" udp/vat %u c%d %u%s", 133 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up) - 8), 134 i0 & 0xffff, 135 i1, i0 & 0x800000? "*" : ""); 136 /* audio format */ 137 if (i0 & 0x1f0000) 138 printf(" f%d", (i0 >> 16) & 0x1f); 139 if (i0 & 0x3f000000) 140 printf(" s%d", (i0 >> 24) & 0x3f); 141 } 142 } 143 144 static void 145 rtp_print(const void *hdr, u_int len, register const struct udphdr *up) 146 { 147 /* rtp v1 or v2 */ 148 u_int *ip = (u_int *)hdr; 149 u_int hasopt, hasext, contype, hasmarker; 150 u_int32_t i0 = (u_int32_t)ntohl(((u_int *)hdr)[0]); 151 u_int32_t i1 = (u_int32_t)ntohl(((u_int *)hdr)[1]); 152 u_int dlen = ntohs(up->uh_ulen) - sizeof(*up) - 8; 153 const char * ptype; 154 155 ip += 2; 156 len >>= 2; 157 len -= 2; 158 hasopt = 0; 159 hasext = 0; 160 if ((i0 >> 30) == 1) { 161 /* rtp v1 */ 162 hasopt = i0 & 0x800000; 163 contype = (i0 >> 16) & 0x3f; 164 hasmarker = i0 & 0x400000; 165 ptype = "rtpv1"; 166 } else { 167 /* rtp v2 */ 168 hasext = i0 & 0x10000000; 169 contype = (i0 >> 16) & 0x7f; 170 hasmarker = i0 & 0x800000; 171 dlen -= 4; 172 ptype = "rtp"; 173 ip += 1; 174 len -= 1; 175 } 176 printf(" udp/%s %d c%d %s%s %d %u", 177 ptype, 178 dlen, 179 contype, 180 (hasopt || hasext)? "+" : "", 181 hasmarker? "*" : "", 182 i0 & 0xffff, 183 i1); 184 if (vflag) { 185 printf(" %u", (u_int32_t)ntohl(((u_int *)hdr)[2])); 186 if (hasopt) { 187 u_int i2, optlen; 188 do { 189 i2 = ip[0]; 190 optlen = (i2 >> 16) & 0xff; 191 if (optlen == 0 || optlen > len) { 192 printf(" !opt"); 193 return; 194 } 195 ip += optlen; 196 len -= optlen; 197 } while ((int)i2 >= 0); 198 } 199 if (hasext) { 200 u_int i2, extlen; 201 i2 = ip[0]; 202 extlen = (i2 & 0xffff) + 1; 203 if (extlen > len) { 204 printf(" !ext"); 205 return; 206 } 207 ip += extlen; 208 } 209 if (contype == 0x1f) /*XXX H.261 */ 210 printf(" 0x%04x", ip[0] >> 16); 211 } 212 } 213 214 static const u_char * 215 rtcp_print(const u_char *hdr, const u_char *ep) 216 { 217 /* rtp v2 control (rtcp) */ 218 struct rtcp_rr *rr = 0; 219 struct rtcp_sr *sr; 220 struct rtcphdr *rh = (struct rtcphdr *)hdr; 221 u_int len; 222 u_int16_t flags; 223 int cnt; 224 double ts, dts; 225 if ((u_char *)(rh + 1) > ep) { 226 printf(" [|rtcp]"); 227 return (ep); 228 } 229 len = (ntohs(rh->rh_len) + 1) * 4; 230 flags = ntohs(rh->rh_flags); 231 cnt = (flags >> 8) & 0x1f; 232 switch (flags & 0xff) { 233 case RTCP_PT_SR: 234 sr = (struct rtcp_sr *)(rh + 1); 235 printf(" sr"); 236 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh)) 237 printf(" [%d]", len); 238 if (vflag) 239 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc)); 240 if ((u_char *)(sr + 1) > ep) { 241 printf(" [|rtcp]"); 242 return (ep); 243 } 244 ts = (double)((u_int32_t)ntohl(sr->sr_ntp.upper)) + 245 ((double)((u_int32_t)ntohl(sr->sr_ntp.lower)) / 246 4294967296.0); 247 printf(" @%.2f %u %up %ub", ts, (u_int32_t)ntohl(sr->sr_ts), 248 (u_int32_t)ntohl(sr->sr_np), (u_int32_t)ntohl(sr->sr_nb)); 249 rr = (struct rtcp_rr *)(sr + 1); 250 break; 251 case RTCP_PT_RR: 252 printf(" rr"); 253 if (len != cnt * sizeof(*rr) + sizeof(*rh)) 254 printf(" [%d]", len); 255 rr = (struct rtcp_rr *)(rh + 1); 256 if (vflag) 257 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc)); 258 break; 259 case RTCP_PT_SDES: 260 printf(" sdes %d", len); 261 if (vflag) 262 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc)); 263 cnt = 0; 264 break; 265 case RTCP_PT_BYE: 266 printf(" bye %d", len); 267 if (vflag) 268 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc)); 269 cnt = 0; 270 break; 271 default: 272 printf(" type-0x%x %d", flags & 0xff, len); 273 cnt = 0; 274 break; 275 } 276 if (cnt > 1) 277 printf(" c%d", cnt); 278 while (--cnt >= 0) { 279 if ((u_char *)(rr + 1) > ep) { 280 printf(" [|rtcp]"); 281 return (ep); 282 } 283 if (vflag) 284 printf(" %u", (u_int32_t)ntohl(rr->rr_srcid)); 285 ts = (double)((u_int32_t)ntohl(rr->rr_lsr)) / 65536.; 286 dts = (double)((u_int32_t)ntohl(rr->rr_dlsr)) / 65536.; 287 printf(" %ul %us %uj @%.2f+%.2f", 288 (u_int32_t)ntohl(rr->rr_nl) & 0x00ffffff, 289 (u_int32_t)ntohl(rr->rr_ls), 290 (u_int32_t)ntohl(rr->rr_dv), ts, dts); 291 } 292 return (hdr + len); 293 } 294 295 static int udp_cksum(register const struct ip *ip, 296 register const struct udphdr *up, 297 register int len) 298 { 299 int i, tlen; 300 union phu { 301 struct phdr { 302 u_int32_t src; 303 u_int32_t dst; 304 u_char mbz; 305 u_char proto; 306 u_int16_t len; 307 } ph; 308 u_int16_t pa[6]; 309 } phu; 310 register const u_int16_t *sp; 311 u_int32_t sum; 312 tlen = ntohs(ip->ip_len) - ((const char *)up-(const char*)ip); 313 314 /* pseudo-header.. */ 315 phu.ph.len = htons(tlen); 316 phu.ph.mbz = 0; 317 phu.ph.proto = IPPROTO_UDP; 318 memcpy(&phu.ph.src, &ip->ip_src.s_addr, sizeof(u_int32_t)); 319 memcpy(&phu.ph.dst, &ip->ip_dst.s_addr, sizeof(u_int32_t)); 320 321 sp = &phu.pa[0]; 322 sum = sp[0]+sp[1]+sp[2]+sp[3]+sp[4]+sp[5]; 323 324 sp = (const u_int16_t *)up; 325 326 for (i=0; i<(tlen&~1); i+= 2) 327 sum += *sp++; 328 329 if (tlen & 1) { 330 sum += htons( (*(const u_int8_t *)sp) << 8); 331 } 332 333 while (sum > 0xffff) 334 sum = (sum & 0xffff) + (sum >> 16); 335 sum = ~sum & 0xffff; 336 337 return (sum); 338 } 339 340 #ifdef INET6 341 static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up, 342 int len) 343 { 344 int i, tlen; 345 register const u_int16_t *sp; 346 u_int32_t sum; 347 union { 348 struct { 349 struct in6_addr ph_src; 350 struct in6_addr ph_dst; 351 u_int32_t ph_len; 352 u_int8_t ph_zero[3]; 353 u_int8_t ph_nxt; 354 } ph; 355 u_int16_t pa[20]; 356 } phu; 357 358 tlen = ntohs(ip6->ip6_plen) + sizeof(struct ip6_hdr) - 359 ((const char *)up - (const char*)ip6); 360 361 /* pseudo-header */ 362 memset(&phu, 0, sizeof(phu)); 363 phu.ph.ph_src = ip6->ip6_src; 364 phu.ph.ph_dst = ip6->ip6_dst; 365 phu.ph.ph_len = htonl(tlen); 366 phu.ph.ph_nxt = IPPROTO_UDP; 367 368 sum = 0; 369 for (i = 0; i < sizeof(phu.pa) / sizeof(phu.pa[0]); i++) 370 sum += phu.pa[i]; 371 372 sp = (const u_int16_t *)up; 373 374 for (i = 0; i < (tlen & ~1); i += 2) 375 sum += *sp++; 376 377 if (tlen & 1) 378 sum += htons((*(const u_int8_t *)sp) << 8); 379 380 while (sum > 0xffff) 381 sum = (sum & 0xffff) + (sum >> 16); 382 sum = ~sum & 0xffff; 383 384 return (sum); 385 } 386 #endif 387 388 389 /* XXX probably should use getservbyname() and cache answers */ 390 #define TFTP_PORT 69 /*XXX*/ 391 #define KERBEROS_PORT 88 /*XXX*/ 392 #define SUNRPC_PORT 111 /*XXX*/ 393 #define SNMP_PORT 161 /*XXX*/ 394 #define NTP_PORT 123 /*XXX*/ 395 #define SNMPTRAP_PORT 162 /*XXX*/ 396 #define ISAKMP_PORT 500 /*XXX*/ 397 #define TIMED_PORT 525 /*XXX*/ 398 #define RIP_PORT 520 /*XXX*/ 399 #define KERBEROS_SEC_PORT 750 /*XXX*/ 400 #define L2TP_PORT 1701 /*XXX*/ 401 #define ISAKMP_PORT_USER1 7500 /*??? - nonstandard*/ 402 #define ISAKMP_PORT_USER2 8500 /*??? - nonstandard*/ 403 #define RX_PORT_LOW 7000 /*XXX*/ 404 #define RX_PORT_HIGH 7009 /*XXX*/ 405 #define NETBIOS_NS_PORT 137 406 #define NETBIOS_DGRAM_PORT 138 407 #define CISCO_AUTORP_PORT 496 /*XXX*/ 408 #define RADIUS_PORT 1645 409 #define RADIUS_NEW_PORT 1812 410 #define RADIUS_ACCOUNTING_PORT 1646 411 #define RADIUS_NEW_ACCOUNTING_PORT 1813 412 413 #ifdef INET6 414 #define RIPNG_PORT 521 /*XXX*/ 415 #define DHCP6_SERV_PORT 546 /*XXX*/ 416 #define DHCP6_CLI_PORT 547 /*XXX*/ 417 #endif 418 419 void 420 udp_print(register const u_char *bp, u_int length, 421 register const u_char *bp2, int fragmented) 422 { 423 register const struct udphdr *up; 424 register const struct ip *ip; 425 register const u_char *cp; 426 register const u_char *ep = bp + length; 427 u_int16_t sport, dport, ulen; 428 #ifdef INET6 429 register const struct ip6_hdr *ip6; 430 #endif 431 432 if (ep > snapend) 433 ep = snapend; 434 up = (struct udphdr *)bp; 435 ip = (struct ip *)bp2; 436 #ifdef INET6 437 if (IP_V(ip) == 6) 438 ip6 = (struct ip6_hdr *)bp2; 439 else 440 ip6 = NULL; 441 #endif /*INET6*/ 442 cp = (u_char *)(up + 1); 443 if (cp > snapend) { 444 (void)printf("%s > %s: [|udp]", 445 ipaddr_string(&ip->ip_src), ipaddr_string(&ip->ip_dst)); 446 return; 447 } 448 if (length < sizeof(struct udphdr)) { 449 (void)printf("%s > %s: truncated-udp %d", 450 ipaddr_string(&ip->ip_src), ipaddr_string(&ip->ip_dst), 451 length); 452 return; 453 } 454 length -= sizeof(struct udphdr); 455 456 sport = ntohs(up->uh_sport); 457 dport = ntohs(up->uh_dport); 458 ulen = ntohs(up->uh_ulen); 459 if (ulen < 8) { 460 (void)printf("%s > %s: truncated-udplength %d", 461 ipaddr_string(&ip->ip_src), 462 ipaddr_string(&ip->ip_dst), 463 ulen); 464 return; 465 } 466 if (packettype) { 467 register struct rpc_msg *rp; 468 enum msg_type direction; 469 470 switch (packettype) { 471 472 case PT_VAT: 473 (void)printf("%s.%s > %s.%s:", 474 ipaddr_string(&ip->ip_src), 475 udpport_string(sport), 476 ipaddr_string(&ip->ip_dst), 477 udpport_string(dport)); 478 vat_print((void *)(up + 1), length, up); 479 break; 480 481 case PT_WB: 482 (void)printf("%s.%s > %s.%s:", 483 ipaddr_string(&ip->ip_src), 484 udpport_string(sport), 485 ipaddr_string(&ip->ip_dst), 486 udpport_string(dport)); 487 wb_print((void *)(up + 1), length); 488 break; 489 490 case PT_RPC: 491 rp = (struct rpc_msg *)(up + 1); 492 direction = (enum msg_type)ntohl(rp->rm_direction); 493 if (direction == CALL) 494 sunrpcrequest_print((u_char *)rp, length, 495 (u_char *)ip); 496 else 497 nfsreply_print((u_char *)rp, length, 498 (u_char *)ip); /*XXX*/ 499 break; 500 501 case PT_RTP: 502 (void)printf("%s.%s > %s.%s:", 503 ipaddr_string(&ip->ip_src), 504 udpport_string(sport), 505 ipaddr_string(&ip->ip_dst), 506 udpport_string(dport)); 507 rtp_print((void *)(up + 1), length, up); 508 break; 509 510 case PT_RTCP: 511 (void)printf("%s.%s > %s.%s:", 512 ipaddr_string(&ip->ip_src), 513 udpport_string(sport), 514 ipaddr_string(&ip->ip_dst), 515 udpport_string(dport)); 516 while (cp < ep) 517 cp = rtcp_print(cp, ep); 518 break; 519 520 case PT_SNMP: 521 (void)printf("%s.%s > %s.%s:", 522 ipaddr_string(&ip->ip_src), 523 udpport_string(sport), 524 ipaddr_string(&ip->ip_dst), 525 udpport_string(dport)); 526 snmp_print((const u_char *)(up + 1), length); 527 break; 528 529 case PT_CNFP: 530 (void)printf("%s.%s > %s.%s:", 531 ipaddr_string(&ip->ip_src), 532 udpport_string(sport), 533 ipaddr_string(&ip->ip_dst), 534 udpport_string(dport)); 535 cnfp_print(cp, length, (const u_char *)ip); 536 break; 537 } 538 return; 539 } 540 541 if (!qflag) { 542 register struct rpc_msg *rp; 543 enum msg_type direction; 544 545 rp = (struct rpc_msg *)(up + 1); 546 if (TTEST(rp->rm_direction)) { 547 direction = (enum msg_type)ntohl(rp->rm_direction); 548 if (dport == NFS_PORT && direction == CALL) { 549 nfsreq_print((u_char *)rp, length, 550 (u_char *)ip); 551 return; 552 } 553 if (sport == NFS_PORT && direction == REPLY) { 554 nfsreply_print((u_char *)rp, length, 555 (u_char *)ip); 556 return; 557 } 558 #ifdef notdef 559 if (dport == SUNRPC_PORT && direction == CALL) { 560 sunrpcrequest_print((u_char *)rp, length, (u_char *)ip); 561 return; 562 } 563 #endif 564 } 565 if (TTEST(((struct LAP *)cp)->type) && 566 ((struct LAP *)cp)->type == lapDDP && 567 (atalk_port(sport) || atalk_port(dport))) { 568 if (vflag) 569 fputs("kip ", stdout); 570 llap_print(cp, length); 571 return; 572 } 573 } 574 #if 0 575 (void)printf("%s.%s > %s.%s:", 576 ipaddr_string(&ip->ip_src), udpport_string(sport), 577 ipaddr_string(&ip->ip_dst), udpport_string(dport)); 578 #else 579 #ifdef INET6 580 if (ip6) { 581 if (ip6->ip6_nxt == IPPROTO_UDP) { 582 (void)printf("%s.%s > %s.%s: ", 583 ip6addr_string(&ip6->ip6_src), 584 udpport_string(sport), 585 ip6addr_string(&ip6->ip6_dst), 586 udpport_string(dport)); 587 } else { 588 (void)printf("%s > %s: ", 589 udpport_string(sport), udpport_string(dport)); 590 } 591 } else 592 #endif /*INET6*/ 593 { 594 if (ip->ip_p == IPPROTO_UDP) { 595 (void)printf("%s.%s > %s.%s: ", 596 ipaddr_string(&ip->ip_src), 597 udpport_string(sport), 598 ipaddr_string(&ip->ip_dst), 599 udpport_string(dport)); 600 } else { 601 (void)printf("%s > %s: ", 602 udpport_string(sport), udpport_string(dport)); 603 } 604 } 605 #endif 606 607 if (IP_V(ip) == 4 && vflag && !fragmented) { 608 int sum = up->uh_sum; 609 if (sum == 0) { 610 (void)printf(" [no cksum]"); 611 } else if (TTEST2(cp[0], length)) { 612 sum = udp_cksum(ip, up, length); 613 if (sum != 0) 614 (void)printf(" [bad udp cksum %x!]", sum); 615 else 616 (void)printf(" [udp sum ok]"); 617 } 618 } 619 #ifdef INET6 620 if (IP_V(ip) == 6 && ip6->ip6_plen && vflag && !fragmented) { 621 int sum = up->uh_sum; 622 /* for IPv6, UDP checksum is mandatory */ 623 if (TTEST2(cp[0], length)) { 624 sum = udp6_cksum(ip6, up, length); 625 if (sum != 0) 626 (void)printf(" [bad udp cksum %x!]", sum); 627 else 628 (void)printf(" [udp sum ok]"); 629 } 630 } 631 #endif 632 633 if (!qflag) { 634 #define ISPORT(p) (dport == (p) || sport == (p)) 635 if (ISPORT(NAMESERVER_PORT)) 636 ns_print((const u_char *)(up + 1), length); 637 else if (ISPORT(TIMED_PORT)) 638 timed_print((const u_char *)(up + 1), length); 639 else if (ISPORT(TFTP_PORT)) 640 tftp_print((const u_char *)(up + 1), length); 641 else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS)) 642 bootp_print((const u_char *)(up + 1), length, 643 sport, dport); 644 else if (ISPORT(RIP_PORT)) 645 rip_print((const u_char *)(up + 1), length); 646 else if (ISPORT(ISAKMP_PORT)) 647 isakmp_print((const u_char *)(up + 1), length, bp2); 648 #if 1 /*???*/ 649 else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2)) 650 isakmp_print((const u_char *)(up + 1), length, bp2); 651 #endif 652 else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT)) 653 snmp_print((const u_char *)(up + 1), length); 654 else if (ISPORT(NTP_PORT)) 655 ntp_print((const u_char *)(up + 1), length); 656 else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT)) 657 krb_print((const void *)(up + 1), length); 658 else if (ISPORT(L2TP_PORT)) 659 l2tp_print((const u_char *)(up + 1), length); 660 else if (ISPORT(NETBIOS_NS_PORT)) { 661 nbt_udp137_print((const u_char *)(up + 1), length); 662 } 663 else if (ISPORT(NETBIOS_DGRAM_PORT)) { 664 nbt_udp138_print((const u_char *)(up + 1), length); 665 } 666 else if (dport == 3456) 667 vat_print((const void *)(up + 1), length, up); 668 /* 669 * Since there are 10 possible ports to check, I think 670 * a <> test would be more efficient 671 */ 672 else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) || 673 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH)) 674 rx_print((const void *)(up + 1), length, sport, dport, 675 (u_char *) ip); 676 #ifdef INET6 677 else if (ISPORT(RIPNG_PORT)) 678 ripng_print((const u_char *)(up + 1), length); 679 else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) { 680 dhcp6_print((const u_char *)(up + 1), length, 681 sport, dport); 682 } 683 #endif /*INET6*/ 684 /* 685 * Kludge in test for whiteboard packets. 686 */ 687 else if (dport == 4567) 688 wb_print((const void *)(up + 1), length); 689 else if (ISPORT(CISCO_AUTORP_PORT)) 690 cisco_autorp_print((const void *)(up + 1), length); 691 else if (ISPORT(RADIUS_PORT) || 692 ISPORT(RADIUS_NEW_PORT) || 693 ISPORT(RADIUS_ACCOUNTING_PORT) || 694 ISPORT(RADIUS_NEW_ACCOUNTING_PORT) ) 695 radius_print((const u_char *)(up+1), length); 696 else 697 (void)printf(" udp %u", 698 (u_int32_t)(ulen - sizeof(*up))); 699 #undef ISPORT 700 } else 701 (void)printf(" udp %u", (u_int32_t)(ulen - sizeof(*up))); 702 } 703