| 1 | /* |
| 2 | * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 |
| 3 | * The Regents of the University of California. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that: (1) source code distributions |
| 7 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 8 | * distributions including binary code include the above copyright notice and |
| 9 | * this paragraph in its entirety in the documentation or other materials |
| 10 | * provided with the distribution, and (3) all advertising materials mentioning |
| 11 | * features or use of this software display the following acknowledgement: |
| 12 | * ``This product includes software developed by the University of California, |
| 13 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 14 | * the University nor the names of its contributors may be used to endorse |
| 15 | * or promote products derived from this software without specific prior |
| 16 | * written permission. |
| 17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 20 | */ |
| 21 | |
| 22 | #ifndef lint |
| 23 | static const char rcsid[] _U_ = |
| 24 | "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.142 2007-08-08 17:20:58 hannes Exp $ (LBL)"; |
| 25 | #endif |
| 26 | |
| 27 | #ifdef HAVE_CONFIG_H |
| 28 | #include "config.h" |
| 29 | #endif |
| 30 | |
| 31 | #include <tcpdump-stdinc.h> |
| 32 | |
| 33 | #ifdef SEGSIZE |
| 34 | #undef SEGSIZE |
| 35 | #endif |
| 36 | #include <arpa/tftp.h> |
| 37 | |
| 38 | #include <stdio.h> |
| 39 | #include <string.h> |
| 40 | |
| 41 | #include "interface.h" |
| 42 | #include "addrtoname.h" |
| 43 | #include "extract.h" |
| 44 | #include "appletalk.h" |
| 45 | |
| 46 | #include "udp.h" |
| 47 | |
| 48 | #include "ip.h" |
| 49 | #ifdef INET6 |
| 50 | #include "ip6.h" |
| 51 | #endif |
| 52 | #include "ipproto.h" |
| 53 | #include "rpc_auth.h" |
| 54 | #include "rpc_msg.h" |
| 55 | |
| 56 | #include "nameser.h" |
| 57 | #include "nfs.h" |
| 58 | #include "bootp.h" |
| 59 | |
| 60 | struct rtcphdr { |
| 61 | u_int16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */ |
| 62 | u_int16_t rh_len; /* length of message (in words) */ |
| 63 | u_int32_t rh_ssrc; /* synchronization src id */ |
| 64 | }; |
| 65 | |
| 66 | typedef struct { |
| 67 | u_int32_t upper; /* more significant 32 bits */ |
| 68 | u_int32_t lower; /* less significant 32 bits */ |
| 69 | } ntp64; |
| 70 | |
| 71 | /* |
| 72 | * Sender report. |
| 73 | */ |
| 74 | struct rtcp_sr { |
| 75 | ntp64 sr_ntp; /* 64-bit ntp timestamp */ |
| 76 | u_int32_t sr_ts; /* reference media timestamp */ |
| 77 | u_int32_t sr_np; /* no. packets sent */ |
| 78 | u_int32_t sr_nb; /* no. bytes sent */ |
| 79 | }; |
| 80 | |
| 81 | /* |
| 82 | * Receiver report. |
| 83 | * Time stamps are middle 32-bits of ntp timestamp. |
| 84 | */ |
| 85 | struct rtcp_rr { |
| 86 | u_int32_t rr_srcid; /* sender being reported */ |
| 87 | u_int32_t rr_nl; /* no. packets lost */ |
| 88 | u_int32_t rr_ls; /* extended last seq number received */ |
| 89 | u_int32_t rr_dv; /* jitter (delay variance) */ |
| 90 | u_int32_t rr_lsr; /* orig. ts from last rr from this src */ |
| 91 | u_int32_t rr_dlsr; /* time from recpt of last rr to xmit time */ |
| 92 | }; |
| 93 | |
| 94 | /*XXX*/ |
| 95 | #define RTCP_PT_SR 200 |
| 96 | #define RTCP_PT_RR 201 |
| 97 | #define RTCP_PT_SDES 202 |
| 98 | #define RTCP_SDES_CNAME 1 |
| 99 | #define RTCP_SDES_NAME 2 |
| 100 | #define RTCP_SDES_EMAIL 3 |
| 101 | #define RTCP_SDES_PHONE 4 |
| 102 | #define RTCP_SDES_LOC 5 |
| 103 | #define RTCP_SDES_TOOL 6 |
| 104 | #define RTCP_SDES_NOTE 7 |
| 105 | #define RTCP_SDES_PRIV 8 |
| 106 | #define RTCP_PT_BYE 203 |
| 107 | #define RTCP_PT_APP 204 |
| 108 | |
| 109 | static void |
| 110 | vat_print(const void *hdr, register const struct udphdr *up) |
| 111 | { |
| 112 | /* vat/vt audio */ |
| 113 | u_int ts = *(u_int16_t *)hdr; |
| 114 | if ((ts & 0xf060) != 0) { |
| 115 | /* probably vt */ |
| 116 | (void)printf("udp/vt %u %d / %d", |
| 117 | (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)), |
| 118 | ts & 0x3ff, ts >> 10); |
| 119 | } else { |
| 120 | /* probably vat */ |
| 121 | u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]); |
| 122 | u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]); |
| 123 | printf("udp/vat %u c%d %u%s", |
| 124 | (u_int32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8), |
| 125 | i0 & 0xffff, |
| 126 | i1, i0 & 0x800000? "*" : ""); |
| 127 | /* audio format */ |
| 128 | if (i0 & 0x1f0000) |
| 129 | printf(" f%d", (i0 >> 16) & 0x1f); |
| 130 | if (i0 & 0x3f000000) |
| 131 | printf(" s%d", (i0 >> 24) & 0x3f); |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | static void |
| 136 | rtp_print(const void *hdr, u_int len, register const struct udphdr *up) |
| 137 | { |
| 138 | /* rtp v1 or v2 */ |
| 139 | u_int *ip = (u_int *)hdr; |
| 140 | u_int hasopt, hasext, contype, hasmarker; |
| 141 | u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]); |
| 142 | u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]); |
| 143 | u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8; |
| 144 | const char * ptype; |
| 145 | |
| 146 | ip += 2; |
| 147 | len >>= 2; |
| 148 | len -= 2; |
| 149 | hasopt = 0; |
| 150 | hasext = 0; |
| 151 | if ((i0 >> 30) == 1) { |
| 152 | /* rtp v1 */ |
| 153 | hasopt = i0 & 0x800000; |
| 154 | contype = (i0 >> 16) & 0x3f; |
| 155 | hasmarker = i0 & 0x400000; |
| 156 | ptype = "rtpv1"; |
| 157 | } else { |
| 158 | /* rtp v2 */ |
| 159 | hasext = i0 & 0x10000000; |
| 160 | contype = (i0 >> 16) & 0x7f; |
| 161 | hasmarker = i0 & 0x800000; |
| 162 | dlen -= 4; |
| 163 | ptype = "rtp"; |
| 164 | ip += 1; |
| 165 | len -= 1; |
| 166 | } |
| 167 | printf("udp/%s %d c%d %s%s %d %u", |
| 168 | ptype, |
| 169 | dlen, |
| 170 | contype, |
| 171 | (hasopt || hasext)? "+" : "", |
| 172 | hasmarker? "*" : "", |
| 173 | i0 & 0xffff, |
| 174 | i1); |
| 175 | if (vflag) { |
| 176 | printf(" %u", EXTRACT_32BITS(&((u_int *)hdr)[2])); |
| 177 | if (hasopt) { |
| 178 | u_int i2, optlen; |
| 179 | do { |
| 180 | i2 = ip[0]; |
| 181 | optlen = (i2 >> 16) & 0xff; |
| 182 | if (optlen == 0 || optlen > len) { |
| 183 | printf(" !opt"); |
| 184 | return; |
| 185 | } |
| 186 | ip += optlen; |
| 187 | len -= optlen; |
| 188 | } while ((int)i2 >= 0); |
| 189 | } |
| 190 | if (hasext) { |
| 191 | u_int i2, extlen; |
| 192 | i2 = ip[0]; |
| 193 | extlen = (i2 & 0xffff) + 1; |
| 194 | if (extlen > len) { |
| 195 | printf(" !ext"); |
| 196 | return; |
| 197 | } |
| 198 | ip += extlen; |
| 199 | } |
| 200 | if (contype == 0x1f) /*XXX H.261 */ |
| 201 | printf(" 0x%04x", ip[0] >> 16); |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | static const u_char * |
| 206 | rtcp_print(const u_char *hdr, const u_char *ep) |
| 207 | { |
| 208 | /* rtp v2 control (rtcp) */ |
| 209 | struct rtcp_rr *rr = 0; |
| 210 | struct rtcp_sr *sr; |
| 211 | struct rtcphdr *rh = (struct rtcphdr *)hdr; |
| 212 | u_int len; |
| 213 | u_int16_t flags; |
| 214 | int cnt; |
| 215 | double ts, dts; |
| 216 | if ((u_char *)(rh + 1) > ep) { |
| 217 | printf(" [|rtcp]"); |
| 218 | return (ep); |
| 219 | } |
| 220 | len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4; |
| 221 | flags = EXTRACT_16BITS(&rh->rh_flags); |
| 222 | cnt = (flags >> 8) & 0x1f; |
| 223 | switch (flags & 0xff) { |
| 224 | case RTCP_PT_SR: |
| 225 | sr = (struct rtcp_sr *)(rh + 1); |
| 226 | printf(" sr"); |
| 227 | if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh)) |
| 228 | printf(" [%d]", len); |
| 229 | if (vflag) |
| 230 | printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); |
| 231 | if ((u_char *)(sr + 1) > ep) { |
| 232 | printf(" [|rtcp]"); |
| 233 | return (ep); |
| 234 | } |
| 235 | ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) + |
| 236 | ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) / |
| 237 | 4294967296.0); |
| 238 | printf(" @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts), |
| 239 | EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb)); |
| 240 | rr = (struct rtcp_rr *)(sr + 1); |
| 241 | break; |
| 242 | case RTCP_PT_RR: |
| 243 | printf(" rr"); |
| 244 | if (len != cnt * sizeof(*rr) + sizeof(*rh)) |
| 245 | printf(" [%d]", len); |
| 246 | rr = (struct rtcp_rr *)(rh + 1); |
| 247 | if (vflag) |
| 248 | printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); |
| 249 | break; |
| 250 | case RTCP_PT_SDES: |
| 251 | printf(" sdes %d", len); |
| 252 | if (vflag) |
| 253 | printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); |
| 254 | cnt = 0; |
| 255 | break; |
| 256 | case RTCP_PT_BYE: |
| 257 | printf(" bye %d", len); |
| 258 | if (vflag) |
| 259 | printf(" %u", EXTRACT_32BITS(&rh->rh_ssrc)); |
| 260 | cnt = 0; |
| 261 | break; |
| 262 | default: |
| 263 | printf(" type-0x%x %d", flags & 0xff, len); |
| 264 | cnt = 0; |
| 265 | break; |
| 266 | } |
| 267 | if (cnt > 1) |
| 268 | printf(" c%d", cnt); |
| 269 | while (--cnt >= 0) { |
| 270 | if ((u_char *)(rr + 1) > ep) { |
| 271 | printf(" [|rtcp]"); |
| 272 | return (ep); |
| 273 | } |
| 274 | if (vflag) |
| 275 | printf(" %u", EXTRACT_32BITS(&rr->rr_srcid)); |
| 276 | ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.; |
| 277 | dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.; |
| 278 | printf(" %ul %us %uj @%.2f+%.2f", |
| 279 | EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff, |
| 280 | EXTRACT_32BITS(&rr->rr_ls), |
| 281 | EXTRACT_32BITS(&rr->rr_dv), ts, dts); |
| 282 | } |
| 283 | return (hdr + len); |
| 284 | } |
| 285 | |
| 286 | static int udp_cksum(register const struct ip *ip, |
| 287 | register const struct udphdr *up, |
| 288 | register u_int len) |
| 289 | { |
| 290 | union phu { |
| 291 | struct phdr { |
| 292 | u_int32_t src; |
| 293 | u_int32_t dst; |
| 294 | u_char mbz; |
| 295 | u_char proto; |
| 296 | u_int16_t len; |
| 297 | } ph; |
| 298 | u_int16_t pa[6]; |
| 299 | } phu; |
| 300 | register const u_int16_t *sp; |
| 301 | |
| 302 | /* pseudo-header.. */ |
| 303 | phu.ph.len = htons((u_int16_t)len); |
| 304 | phu.ph.mbz = 0; |
| 305 | phu.ph.proto = IPPROTO_UDP; |
| 306 | memcpy(&phu.ph.src, &ip->ip_src.s_addr, sizeof(u_int32_t)); |
| 307 | if (IP_HL(ip) == 5) |
| 308 | memcpy(&phu.ph.dst, &ip->ip_dst.s_addr, sizeof(u_int32_t)); |
| 309 | else |
| 310 | phu.ph.dst = ip_finddst(ip); |
| 311 | |
| 312 | sp = &phu.pa[0]; |
| 313 | return in_cksum((u_short *)up, len, |
| 314 | sp[0]+sp[1]+sp[2]+sp[3]+sp[4]+sp[5]); |
| 315 | } |
| 316 | |
| 317 | #ifdef INET6 |
| 318 | static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up, |
| 319 | u_int len) |
| 320 | { |
| 321 | size_t i; |
| 322 | register const u_int16_t *sp; |
| 323 | u_int32_t sum; |
| 324 | union { |
| 325 | struct { |
| 326 | struct in6_addr ph_src; |
| 327 | struct in6_addr ph_dst; |
| 328 | u_int32_t ph_len; |
| 329 | u_int8_t ph_zero[3]; |
| 330 | u_int8_t ph_nxt; |
| 331 | } ph; |
| 332 | u_int16_t pa[20]; |
| 333 | } phu; |
| 334 | |
| 335 | /* pseudo-header */ |
| 336 | memset(&phu, 0, sizeof(phu)); |
| 337 | phu.ph.ph_src = ip6->ip6_src; |
| 338 | phu.ph.ph_dst = ip6->ip6_dst; |
| 339 | phu.ph.ph_len = htonl(len); |
| 340 | phu.ph.ph_nxt = IPPROTO_UDP; |
| 341 | |
| 342 | sum = 0; |
| 343 | for (i = 0; i < sizeof(phu.pa) / sizeof(phu.pa[0]); i++) |
| 344 | sum += phu.pa[i]; |
| 345 | |
| 346 | sp = (const u_int16_t *)up; |
| 347 | |
| 348 | for (i = 0; i < (len & ~1); i += 2) |
| 349 | sum += *sp++; |
| 350 | |
| 351 | if (len & 1) |
| 352 | sum += htons((*(const u_int8_t *)sp) << 8); |
| 353 | |
| 354 | while (sum > 0xffff) |
| 355 | sum = (sum & 0xffff) + (sum >> 16); |
| 356 | sum = ~sum & 0xffff; |
| 357 | |
| 358 | return (sum); |
| 359 | } |
| 360 | #endif |
| 361 | |
| 362 | static void |
| 363 | udpipaddr_print(const struct ip *ip, int sport, int dport) |
| 364 | { |
| 365 | #ifdef INET6 |
| 366 | const struct ip6_hdr *ip6; |
| 367 | |
| 368 | if (IP_V(ip) == 6) |
| 369 | ip6 = (const struct ip6_hdr *)ip; |
| 370 | else |
| 371 | ip6 = NULL; |
| 372 | |
| 373 | if (ip6) { |
| 374 | if (ip6->ip6_nxt == IPPROTO_UDP) { |
| 375 | if (sport == -1) { |
| 376 | (void)printf("%s > %s: ", |
| 377 | ip6addr_string(&ip6->ip6_src), |
| 378 | ip6addr_string(&ip6->ip6_dst)); |
| 379 | } else { |
| 380 | (void)printf("%s.%s > %s.%s: ", |
| 381 | ip6addr_string(&ip6->ip6_src), |
| 382 | udpport_string(sport), |
| 383 | ip6addr_string(&ip6->ip6_dst), |
| 384 | udpport_string(dport)); |
| 385 | } |
| 386 | } else { |
| 387 | if (sport != -1) { |
| 388 | (void)printf("%s > %s: ", |
| 389 | udpport_string(sport), |
| 390 | udpport_string(dport)); |
| 391 | } |
| 392 | } |
| 393 | } else |
| 394 | #endif /*INET6*/ |
| 395 | { |
| 396 | if (ip->ip_p == IPPROTO_UDP) { |
| 397 | if (sport == -1) { |
| 398 | (void)printf("%s > %s: ", |
| 399 | ipaddr_string(&ip->ip_src), |
| 400 | ipaddr_string(&ip->ip_dst)); |
| 401 | } else { |
| 402 | (void)printf("%s.%s > %s.%s: ", |
| 403 | ipaddr_string(&ip->ip_src), |
| 404 | udpport_string(sport), |
| 405 | ipaddr_string(&ip->ip_dst), |
| 406 | udpport_string(dport)); |
| 407 | } |
| 408 | } else { |
| 409 | if (sport != -1) { |
| 410 | (void)printf("%s > %s: ", |
| 411 | udpport_string(sport), |
| 412 | udpport_string(dport)); |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | void |
| 419 | udp_print(register const u_char *bp, u_int length, |
| 420 | register const u_char *bp2, int fragmented) |
| 421 | { |
| 422 | register const struct udphdr *up; |
| 423 | register const struct ip *ip; |
| 424 | register const u_char *cp; |
| 425 | register const u_char *ep = bp + length; |
| 426 | u_int16_t sport, dport, ulen; |
| 427 | #ifdef INET6 |
| 428 | register const struct ip6_hdr *ip6; |
| 429 | #endif |
| 430 | |
| 431 | if (ep > snapend) |
| 432 | ep = snapend; |
| 433 | up = (struct udphdr *)bp; |
| 434 | ip = (struct ip *)bp2; |
| 435 | #ifdef INET6 |
| 436 | if (IP_V(ip) == 6) |
| 437 | ip6 = (struct ip6_hdr *)bp2; |
| 438 | else |
| 439 | ip6 = NULL; |
| 440 | #endif /*INET6*/ |
| 441 | cp = (u_char *)(up + 1); |
| 442 | if (!TTEST(up->uh_dport)) { |
| 443 | udpipaddr_print(ip, -1, -1); |
| 444 | (void)printf("[|udp]"); |
| 445 | return; |
| 446 | } |
| 447 | |
| 448 | sport = EXTRACT_16BITS(&up->uh_sport); |
| 449 | dport = EXTRACT_16BITS(&up->uh_dport); |
| 450 | |
| 451 | if (length < sizeof(struct udphdr)) { |
| 452 | udpipaddr_print(ip, sport, dport); |
| 453 | (void)printf("truncated-udp %d", length); |
| 454 | return; |
| 455 | } |
| 456 | length -= sizeof(struct udphdr); |
| 457 | |
| 458 | if (cp > snapend) { |
| 459 | udpipaddr_print(ip, sport, dport); |
| 460 | (void)printf("[|udp]"); |
| 461 | return; |
| 462 | } |
| 463 | |
| 464 | ulen = EXTRACT_16BITS(&up->uh_ulen); |
| 465 | if (ulen < 8) { |
| 466 | udpipaddr_print(ip, sport, dport); |
| 467 | (void)printf("truncated-udplength %d", ulen); |
| 468 | return; |
| 469 | } |
| 470 | if (packettype) { |
| 471 | register struct sunrpc_msg *rp; |
| 472 | enum sunrpc_msg_type direction; |
| 473 | |
| 474 | switch (packettype) { |
| 475 | |
| 476 | case PT_VAT: |
| 477 | udpipaddr_print(ip, sport, dport); |
| 478 | vat_print((void *)(up + 1), up); |
| 479 | break; |
| 480 | |
| 481 | case PT_WB: |
| 482 | udpipaddr_print(ip, sport, dport); |
| 483 | wb_print((void *)(up + 1), length); |
| 484 | break; |
| 485 | |
| 486 | case PT_RPC: |
| 487 | rp = (struct sunrpc_msg *)(up + 1); |
| 488 | direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction); |
| 489 | if (direction == SUNRPC_CALL) |
| 490 | sunrpcrequest_print((u_char *)rp, length, |
| 491 | (u_char *)ip); |
| 492 | else |
| 493 | nfsreply_print((u_char *)rp, length, |
| 494 | (u_char *)ip); /*XXX*/ |
| 495 | break; |
| 496 | |
| 497 | case PT_RTP: |
| 498 | udpipaddr_print(ip, sport, dport); |
| 499 | rtp_print((void *)(up + 1), length, up); |
| 500 | break; |
| 501 | |
| 502 | case PT_RTCP: |
| 503 | udpipaddr_print(ip, sport, dport); |
| 504 | while (cp < ep) |
| 505 | cp = rtcp_print(cp, ep); |
| 506 | break; |
| 507 | |
| 508 | case PT_SNMP: |
| 509 | udpipaddr_print(ip, sport, dport); |
| 510 | snmp_print((const u_char *)(up + 1), length); |
| 511 | break; |
| 512 | |
| 513 | case PT_CNFP: |
| 514 | udpipaddr_print(ip, sport, dport); |
| 515 | cnfp_print(cp, (const u_char *)ip); |
| 516 | break; |
| 517 | |
| 518 | case PT_TFTP: |
| 519 | udpipaddr_print(ip, sport, dport); |
| 520 | tftp_print(cp, length); |
| 521 | break; |
| 522 | |
| 523 | case PT_AODV: |
| 524 | udpipaddr_print(ip, sport, dport); |
| 525 | aodv_print((const u_char *)(up + 1), length, |
| 526 | #ifdef INET6 |
| 527 | ip6 != NULL); |
| 528 | #else |
| 529 | 0); |
| 530 | #endif |
| 531 | break; |
| 532 | } |
| 533 | return; |
| 534 | } |
| 535 | |
| 536 | if (!qflag) { |
| 537 | register struct sunrpc_msg *rp; |
| 538 | enum sunrpc_msg_type direction; |
| 539 | |
| 540 | rp = (struct sunrpc_msg *)(up + 1); |
| 541 | if (TTEST(rp->rm_direction)) { |
| 542 | direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction); |
| 543 | if (dport == NFS_PORT && direction == SUNRPC_CALL) { |
| 544 | nfsreq_print((u_char *)rp, length, |
| 545 | (u_char *)ip); |
| 546 | return; |
| 547 | } |
| 548 | if (sport == NFS_PORT && direction == SUNRPC_REPLY) { |
| 549 | nfsreply_print((u_char *)rp, length, |
| 550 | (u_char *)ip); |
| 551 | return; |
| 552 | } |
| 553 | #ifdef notdef |
| 554 | if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) { |
| 555 | sunrpcrequest_print((u_char *)rp, length, (u_char *)ip); |
| 556 | return; |
| 557 | } |
| 558 | #endif |
| 559 | } |
| 560 | if (TTEST(((struct LAP *)cp)->type) && |
| 561 | ((struct LAP *)cp)->type == lapDDP && |
| 562 | (atalk_port(sport) || atalk_port(dport))) { |
| 563 | if (vflag) |
| 564 | fputs("kip ", stdout); |
| 565 | llap_print(cp, length); |
| 566 | return; |
| 567 | } |
| 568 | } |
| 569 | udpipaddr_print(ip, sport, dport); |
| 570 | |
| 571 | if (IP_V(ip) == 4 && (vflag > 1) && !fragmented) { |
| 572 | int sum = up->uh_sum; |
| 573 | if (sum == 0) { |
| 574 | (void)printf("[no cksum] "); |
| 575 | } else if (TTEST2(cp[0], length)) { |
| 576 | sum = udp_cksum(ip, up, length + sizeof(struct udphdr)); |
| 577 | if (sum != 0) |
| 578 | (void)printf("[bad udp cksum %x!] ", sum); |
| 579 | else |
| 580 | (void)printf("[udp sum ok] "); |
| 581 | } |
| 582 | } |
| 583 | #ifdef INET6 |
| 584 | if (IP_V(ip) == 6 && ip6->ip6_plen && vflag && !fragmented) { |
| 585 | int sum = up->uh_sum; |
| 586 | /* for IPv6, UDP checksum is mandatory */ |
| 587 | if (TTEST2(cp[0], length)) { |
| 588 | sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr)); |
| 589 | if (sum != 0) |
| 590 | (void)printf("[bad udp cksum %x!] ", sum); |
| 591 | else |
| 592 | (void)printf("[udp sum ok] "); |
| 593 | } |
| 594 | } |
| 595 | #endif |
| 596 | |
| 597 | if (!qflag) { |
| 598 | #define ISPORT(p) (dport == (p) || sport == (p)) |
| 599 | if (ISPORT(NAMESERVER_PORT)) |
| 600 | ns_print((const u_char *)(up + 1), length, 0); |
| 601 | else if (ISPORT(MULTICASTDNS_PORT)) |
| 602 | ns_print((const u_char *)(up + 1), length, 1); |
| 603 | else if (ISPORT(TIMED_PORT)) |
| 604 | timed_print((const u_char *)(up + 1)); |
| 605 | else if (ISPORT(TFTP_PORT)) |
| 606 | tftp_print((const u_char *)(up + 1), length); |
| 607 | else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS)) |
| 608 | bootp_print((const u_char *)(up + 1), length); |
| 609 | else if (ISPORT(RIP_PORT)) |
| 610 | rip_print((const u_char *)(up + 1), length); |
| 611 | else if (ISPORT(AODV_PORT)) |
| 612 | aodv_print((const u_char *)(up + 1), length, |
| 613 | #ifdef INET6 |
| 614 | ip6 != NULL); |
| 615 | #else |
| 616 | 0); |
| 617 | #endif |
| 618 | else if (ISPORT(ISAKMP_PORT)) |
| 619 | isakmp_print(gndo, (const u_char *)(up + 1), length, bp2); |
| 620 | else if (ISPORT(ISAKMP_PORT_NATT)) |
| 621 | isakmp_rfc3948_print(gndo, (const u_char *)(up + 1), length, bp2); |
| 622 | #if 1 /*???*/ |
| 623 | else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2)) |
| 624 | isakmp_print(gndo, (const u_char *)(up + 1), length, bp2); |
| 625 | #endif |
| 626 | else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT)) |
| 627 | snmp_print((const u_char *)(up + 1), length); |
| 628 | else if (ISPORT(NTP_PORT)) |
| 629 | ntp_print((const u_char *)(up + 1), length); |
| 630 | else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT)) |
| 631 | krb_print((const void *)(up + 1)); |
| 632 | else if (ISPORT(L2TP_PORT)) |
| 633 | l2tp_print((const u_char *)(up + 1), length); |
| 634 | #ifdef TCPDUMP_DO_SMB |
| 635 | else if (ISPORT(NETBIOS_NS_PORT)) |
| 636 | nbt_udp137_print((const u_char *)(up + 1), length); |
| 637 | else if (ISPORT(NETBIOS_DGRAM_PORT)) |
| 638 | nbt_udp138_print((const u_char *)(up + 1), length); |
| 639 | #endif |
| 640 | else if (dport == 3456) |
| 641 | vat_print((const void *)(up + 1), up); |
| 642 | else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT)) |
| 643 | zephyr_print((const void *)(up + 1), length); |
| 644 | /* |
| 645 | * Since there are 10 possible ports to check, I think |
| 646 | * a <> test would be more efficient |
| 647 | */ |
| 648 | else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) || |
| 649 | (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH)) |
| 650 | rx_print((const void *)(up + 1), length, sport, dport, |
| 651 | (u_char *) ip); |
| 652 | #ifdef INET6 |
| 653 | else if (ISPORT(RIPNG_PORT)) |
| 654 | ripng_print((const u_char *)(up + 1), length); |
| 655 | else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) { |
| 656 | dhcp6_print((const u_char *)(up + 1), length); |
| 657 | } |
| 658 | #endif /*INET6*/ |
| 659 | /* |
| 660 | * Kludge in test for whiteboard packets. |
| 661 | */ |
| 662 | else if (dport == 4567) |
| 663 | wb_print((const void *)(up + 1), length); |
| 664 | else if (ISPORT(CISCO_AUTORP_PORT)) |
| 665 | cisco_autorp_print((const void *)(up + 1), length); |
| 666 | else if (ISPORT(RADIUS_PORT) || |
| 667 | ISPORT(RADIUS_NEW_PORT) || |
| 668 | ISPORT(RADIUS_ACCOUNTING_PORT) || |
| 669 | ISPORT(RADIUS_NEW_ACCOUNTING_PORT) ) |
| 670 | radius_print((const u_char *)(up+1), length); |
| 671 | else if (dport == HSRP_PORT) |
| 672 | hsrp_print((const u_char *)(up + 1), length); |
| 673 | else if (ISPORT(LWRES_PORT)) |
| 674 | lwres_print((const u_char *)(up + 1), length); |
| 675 | else if (ISPORT(LDP_PORT)) |
| 676 | ldp_print((const u_char *)(up + 1), length); |
| 677 | else if (ISPORT(OLSR_PORT)) |
| 678 | olsr_print((const u_char *)(up + 1), length); |
| 679 | else if (ISPORT(MPLS_LSP_PING_PORT)) |
| 680 | lspping_print((const u_char *)(up + 1), length); |
| 681 | else if (dport == BFD_CONTROL_PORT || |
| 682 | dport == BFD_ECHO_PORT ) |
| 683 | bfd_print((const u_char *)(up+1), length, dport); |
| 684 | else if (ISPORT(LMP_PORT)) |
| 685 | lmp_print((const u_char *)(up + 1), length); |
| 686 | else if (ISPORT(VQP_PORT)) |
| 687 | vqp_print((const u_char *)(up + 1), length); |
| 688 | else if (ISPORT(SFLOW_PORT)) |
| 689 | sflow_print((const u_char *)(up + 1), length); |
| 690 | else if (dport == LWAPP_CONTROL_PORT) |
| 691 | lwapp_control_print((const u_char *)(up + 1), length, 1); |
| 692 | else if (sport == LWAPP_CONTROL_PORT) |
| 693 | lwapp_control_print((const u_char *)(up + 1), length, 0); |
| 694 | else if (ISPORT(LWAPP_DATA_PORT)) |
| 695 | lwapp_data_print((const u_char *)(up + 1), length); |
| 696 | else if (ISPORT(SIP_PORT)) |
| 697 | sip_print((const u_char *)(up + 1), length); |
| 698 | else if (ISPORT(SYSLOG_PORT)) |
| 699 | syslog_print((const u_char *)(up + 1), length); |
| 700 | else |
| 701 | (void)printf("UDP, length %u", |
| 702 | (u_int32_t)(ulen - sizeof(*up))); |
| 703 | #undef ISPORT |
| 704 | } else |
| 705 | (void)printf("UDP, length %u", (u_int32_t)(ulen - sizeof(*up))); |
| 706 | } |
| 707 | |
| 708 | |
| 709 | /* |
| 710 | * Local Variables: |
| 711 | * c-style: whitesmith |
| 712 | * c-basic-offset: 8 |
| 713 | * End: |
| 714 | */ |
| 715 | |