]> The Tcpdump Group git mirrors - tcpdump/blob - print-udp.c
projects / tcpdump / blob
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
CMake: Fix the comment about versions. [skip ci]
[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
22 /* \summary: UDP printer */
23
24 #include <config.h>
25
26 #include "netdissect-stdinc.h"
27
28 #include "netdissect.h"
29 #include "addrtoname.h"
30 #include "extract.h"
31 #include "appletalk.h"
32
33 #include "udp.h"
34
35 #include "ip.h"
36 #include "ip6.h"
37 #include "ipproto.h"
38 #include "rpc_auth.h"
39 #include "rpc_msg.h"
40
41 #include "nfs.h"
42
43
44 struct rtcphdr {
45 nd_uint16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */
46 nd_uint16_t rh_len; /* length of message (in words) */
47 nd_uint32_t rh_ssrc; /* synchronization src id */
48 };
49
50 typedef struct {
51 nd_uint32_t upper; /* more significant 32 bits */
52 nd_uint32_t lower; /* less significant 32 bits */
53 } ntp64;
54
55 /*
56 * Sender report.
57 */
58 struct rtcp_sr {
59 ntp64 sr_ntp; /* 64-bit ntp timestamp */
60 nd_uint32_t sr_ts; /* reference media timestamp */
61 nd_uint32_t sr_np; /* no. packets sent */
62 nd_uint32_t sr_nb; /* no. bytes sent */
63 };
64
65 /*
66 * Receiver report.
67 * Time stamps are middle 32-bits of ntp timestamp.
68 */
69 struct rtcp_rr {
70 nd_uint32_t rr_srcid; /* sender being reported */
71 nd_uint32_t rr_nl; /* no. packets lost */
72 nd_uint32_t rr_ls; /* extended last seq number received */
73 nd_uint32_t rr_dv; /* jitter (delay variance) */
74 nd_uint32_t rr_lsr; /* orig. ts from last rr from this src */
75 nd_uint32_t rr_dlsr; /* time from recpt of last rr to xmit time */
76 };
77
78 /*XXX*/
79 #define RTCP_PT_SR 200
80 #define RTCP_PT_RR 201
81 #define RTCP_PT_SDES 202
82 #define RTCP_SDES_CNAME 1
83 #define RTCP_SDES_NAME 2
84 #define RTCP_SDES_EMAIL 3
85 #define RTCP_SDES_PHONE 4
86 #define RTCP_SDES_LOC 5
87 #define RTCP_SDES_TOOL 6
88 #define RTCP_SDES_NOTE 7
89 #define RTCP_SDES_PRIV 8
90 #define RTCP_PT_BYE 203
91 #define RTCP_PT_APP 204
92
93 static void
94 vat_print(netdissect_options *ndo, const u_char *hdr, u_int length)
95 {
96 /* vat/vt audio */
97 u_int ts;
98
99 ndo->ndo_protocol = "vat";
100 if (length < 2) {
101 ND_PRINT("udp/va/vat, length %u < 2", length);
102 return;
103 }
104 ts = GET_BE_U_2(hdr);
105 if ((ts & 0xf060) != 0) {
106 /* probably vt */
107 ND_PRINT("udp/vt %u %u / %u",
108 length,
109 ts & 0x3ff, ts >> 10);
110 } else {
111 /* probably vat */
112 uint32_t i0, i1;
113
114 if (length < 8) {
115 ND_PRINT("udp/vat, length %u < 8", length);
116 return;
117 }
118 i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
119 i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
120 ND_PRINT("udp/vat %u c%u %u%s",
121 length - 8,
122 i0 & 0xffff,
123 i1, i0 & 0x800000? "*" : "");
124 /* audio format */
125 if (i0 & 0x1f0000)
126 ND_PRINT(" f%u", (i0 >> 16) & 0x1f);
127 if (i0 & 0x3f000000)
128 ND_PRINT(" s%u", (i0 >> 24) & 0x3f);
129 }
130 }
131
132 static void
133 rtp_print(netdissect_options *ndo, const u_char *hdr, u_int len)
134 {
135 /* rtp v1 or v2 */
136 const u_int *ip = (const u_int *)hdr;
137 u_int hasopt, hasext, contype, hasmarker, dlen;
138 uint32_t i0, i1;
139 const char * ptype;
140
141 ndo->ndo_protocol = "rtp";
142 if (len < 8) {
143 ND_PRINT("udp/rtp, length %u < 8", len);
144 return;
145 }
146 i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
147 i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
148 dlen = len - 8;
149 ip += 2;
150 len >>= 2;
151 len -= 2;
152 hasopt = 0;
153 hasext = 0;
154 if ((i0 >> 30) == 1) {
155 /* rtp v1 - draft-ietf-avt-rtp-04 */
156 hasopt = i0 & 0x800000;
157 contype = (i0 >> 16) & 0x3f;
158 hasmarker = i0 & 0x400000;
159 ptype = "rtpv1";
160 } else {
161 /* rtp v2 - RFC 3550 */
162 if (dlen < 4) {
163 ND_PRINT("udp/rtp, length %u < 12", dlen + 8);
164 return;
165 }
166 hasext = i0 & 0x10000000;
167 contype = (i0 >> 16) & 0x7f;
168 hasmarker = i0 & 0x800000;
169 dlen -= 4;
170 ptype = "rtp";
171 ip += 1;
172 len -= 1;
173 }
174 ND_PRINT("udp/%s %u c%u %s%s %u %u",
175 ptype,
176 dlen,
177 contype,
178 (hasopt || hasext)? "+" : "",
179 hasmarker? "*" : "",
180 i0 & 0xffff,
181 i1);
182 if (ndo->ndo_vflag) {
183 ND_PRINT(" %u", GET_BE_U_4(&((const u_int *)hdr)[2]));
184 if (hasopt) {
185 u_int i2, optlen;
186 do {
187 i2 = GET_BE_U_4(ip);
188 optlen = (i2 >> 16) & 0xff;
189 if (optlen == 0 || optlen > len) {
190 ND_PRINT(" !opt");
191 return;
192 }
193 ip += optlen;
194 len -= optlen;
195 } while ((int)i2 >= 0);
196 }
197 if (hasext) {
198 u_int i2, extlen;
199 i2 = GET_BE_U_4(ip);
200 extlen = (i2 & 0xffff) + 1;
201 if (extlen > len) {
202 ND_PRINT(" !ext");
203 return;
204 }
205 ip += extlen;
206 }
207 if (contype == 0x1f) /*XXX H.261 */
208 ND_PRINT(" 0x%04x", GET_BE_U_4(ip) >> 16);
209 }
210 }
211
212 static const u_char *
213 rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)
214 {
215 /* rtp v2 control (rtcp) */
216 const struct rtcp_rr *rr = 0;
217 const struct rtcp_sr *sr;
218 const struct rtcphdr *rh = (const struct rtcphdr *)hdr;
219 u_int len;
220 uint16_t flags;
221 u_int cnt;
222 double ts, dts;
223
224 ndo->ndo_protocol = "rtcp";
225 if ((const u_char *)(rh + 1) > ep)
226 goto trunc;
227 ND_TCHECK_SIZE(rh);
228 len = (GET_BE_U_2(rh->rh_len) + 1) * 4;
229 flags = GET_BE_U_2(rh->rh_flags);
230 cnt = (flags >> 8) & 0x1f;
231 switch (flags & 0xff) {
232 case RTCP_PT_SR:
233 sr = (const struct rtcp_sr *)(rh + 1);
234 ND_PRINT(" sr");
235 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
236 ND_PRINT(" [%u]", len);
237 if (ndo->ndo_vflag)
238 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
239 if ((const u_char *)(sr + 1) > ep)
240 goto trunc;
241 ND_TCHECK_SIZE(sr);
242 ts = (double)(GET_BE_U_4(sr->sr_ntp.upper)) +
243 ((double)(GET_BE_U_4(sr->sr_ntp.lower)) /
244 FMAXINT);
245 ND_PRINT(" @%.2f %u %up %ub", ts, GET_BE_U_4(sr->sr_ts),
246 GET_BE_U_4(sr->sr_np), GET_BE_U_4(sr->sr_nb));
247 rr = (const struct rtcp_rr *)(sr + 1);
248 break;
249 case RTCP_PT_RR:
250 ND_PRINT(" rr");
251 if (len != cnt * sizeof(*rr) + sizeof(*rh))
252 ND_PRINT(" [%u]", len);
253 rr = (const struct rtcp_rr *)(rh + 1);
254 if (ndo->ndo_vflag)
255 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
256 break;
257 case RTCP_PT_SDES:
258 ND_PRINT(" sdes %u", len);
259 if (ndo->ndo_vflag)
260 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
261 cnt = 0;
262 break;
263 case RTCP_PT_BYE:
264 ND_PRINT(" bye %u", len);
265 if (ndo->ndo_vflag)
266 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
267 cnt = 0;
268 break;
269 default:
270 ND_PRINT(" type-0x%x %u", flags & 0xff, len);
271 cnt = 0;
272 break;
273 }
274 if (cnt > 1)
275 ND_PRINT(" c%u", cnt);
276 while (cnt != 0) {
277 if ((const u_char *)(rr + 1) > ep)
278 goto trunc;
279 ND_TCHECK_SIZE(rr);
280 if (ndo->ndo_vflag)
281 ND_PRINT(" %u", GET_BE_U_4(rr->rr_srcid));
282 ts = (double)(GET_BE_U_4(rr->rr_lsr)) / 65536.;
283 dts = (double)(GET_BE_U_4(rr->rr_dlsr)) / 65536.;
284 ND_PRINT(" %ul %us %uj @%.2f+%.2f",
285 GET_BE_U_4(rr->rr_nl) & 0x00ffffff,
286 GET_BE_U_4(rr->rr_ls),
287 GET_BE_U_4(rr->rr_dv), ts, dts);
288 cnt--;
289 }
290 return (hdr + len);
291
292 trunc:
293 nd_print_trunc(ndo);
294 return ep;
295 }
296
297 static uint16_t udp_cksum(netdissect_options *ndo, const struct ip *ip,
298 const struct udphdr *up,
299 u_int len)
300 {
301 return nextproto4_cksum(ndo, ip, (const uint8_t *)(const void *)up, len, len,
302 IPPROTO_UDP);
303 }
304
305 static uint16_t udp6_cksum(netdissect_options *ndo, const struct ip6_hdr *ip6,
306 const struct udphdr *up, u_int len)
307 {
308 return nextproto6_cksum(ndo, ip6, (const uint8_t *)(const void *)up, len, len,
309 IPPROTO_UDP);
310 }
311
312 static void
313 udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport)
314 {
315 const struct ip6_hdr *ip6;
316
317 if (IP_V(ip) == 6)
318 ip6 = (const struct ip6_hdr *)ip;
319 else
320 ip6 = NULL;
321
322 if (ip6) {
323 if (GET_U_1(ip6->ip6_nxt) == IPPROTO_UDP) {
324 if (sport == -1) {
325 ND_PRINT("%s > %s: ",
326 GET_IP6ADDR_STRING(ip6->ip6_src),
327 GET_IP6ADDR_STRING(ip6->ip6_dst));
328 } else {
329 ND_PRINT("%s.%s > %s.%s: ",
330 GET_IP6ADDR_STRING(ip6->ip6_src),
331 udpport_string(ndo, (uint16_t)sport),
332 GET_IP6ADDR_STRING(ip6->ip6_dst),
333 udpport_string(ndo, (uint16_t)dport));
334 }
335 } else {
336 if (sport != -1) {
337 ND_PRINT("%s > %s: ",
338 udpport_string(ndo, (uint16_t)sport),
339 udpport_string(ndo, (uint16_t)dport));
340 }
341 }
342 } else {
343 if (GET_U_1(ip->ip_p) == IPPROTO_UDP) {
344 if (sport == -1) {
345 ND_PRINT("%s > %s: ",
346 GET_IPADDR_STRING(ip->ip_src),
347 GET_IPADDR_STRING(ip->ip_dst));
348 } else {
349 ND_PRINT("%s.%s > %s.%s: ",
350 GET_IPADDR_STRING(ip->ip_src),
351 udpport_string(ndo, (uint16_t)sport),
352 GET_IPADDR_STRING(ip->ip_dst),
353 udpport_string(ndo, (uint16_t)dport));
354 }
355 } else {
356 if (sport != -1) {
357 ND_PRINT("%s > %s: ",
358 udpport_string(ndo, (uint16_t)sport),
359 udpport_string(ndo, (uint16_t)dport));
360 }
361 }
362 }
363 }
364
365 void
366 udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
367 const u_char *bp2, int fragmented, u_int ttl_hl)
368 {
369 const struct udphdr *up;
370 const struct ip *ip;
371 const u_char *cp;
372 const u_char *ep = ndo->ndo_snapend;
373 uint16_t sport, dport;
374 u_int ulen;
375 const struct ip6_hdr *ip6;
376
377 ndo->ndo_protocol = "udp";
378 up = (const struct udphdr *)bp;
379 ip = (const struct ip *)bp2;
380 if (IP_V(ip) == 6)
381 ip6 = (const struct ip6_hdr *)bp2;
382 else
383 ip6 = NULL;
384 if (!ND_TTEST_2(up->uh_dport)) {
385 udpipaddr_print(ndo, ip, -1, -1);
386 goto trunc;
387 }
388
389 sport = GET_BE_U_2(up->uh_sport);
390 dport = GET_BE_U_2(up->uh_dport);
391
392 if (length < sizeof(struct udphdr)) {
393 udpipaddr_print(ndo, ip, sport, dport);
394 ND_PRINT("truncated-udp %u", length);
395 return;
396 }
397 if (!ND_TTEST_2(up->uh_ulen)) {
398 udpipaddr_print(ndo, ip, sport, dport);
399 goto trunc;
400 }
401 ulen = GET_BE_U_2(up->uh_ulen);
402 /*
403 * IPv6 Jumbo Datagrams; see RFC 2675.
404 * If the length is zero, and the length provided to us is
405 * > 65535, use the provided length as the length.
406 */
407 if (ulen == 0 && length > 65535)
408 ulen = length;
409 if (ulen < sizeof(struct udphdr)) {
410 udpipaddr_print(ndo, ip, sport, dport);
411 ND_PRINT("truncated-udplength %u", ulen);
412 return;
413 }
414 ulen -= sizeof(struct udphdr);
415 length -= sizeof(struct udphdr);
416 if (ulen < length)
417 length = ulen;
418
419 cp = (const u_char *)(up + 1);
420 if (cp > ndo->ndo_snapend) {
421 udpipaddr_print(ndo, ip, sport, dport);
422 goto trunc;
423 }
424
425 if (ndo->ndo_packettype) {
426 const struct sunrpc_msg *rp;
427 enum sunrpc_msg_type direction;
428
429 switch (ndo->ndo_packettype) {
430
431 case PT_VAT:
432 udpipaddr_print(ndo, ip, sport, dport);
433 vat_print(ndo, cp, length);
434 break;
435
436 case PT_WB:
437 udpipaddr_print(ndo, ip, sport, dport);
438 wb_print(ndo, cp, length);
439 break;
440
441 case PT_RPC:
442 rp = (const struct sunrpc_msg *)cp;
443 direction = (enum sunrpc_msg_type) GET_BE_U_4(rp->rm_direction);
444 if (direction == SUNRPC_CALL)
445 sunrpc_print(ndo, (const u_char *)rp, length,
446 (const u_char *)ip);
447 else
448 nfsreply_print(ndo, (const u_char *)rp, length,
449 (const u_char *)ip); /*XXX*/
450 break;
451
452 case PT_RTP:
453 udpipaddr_print(ndo, ip, sport, dport);
454 rtp_print(ndo, cp, length);
455 break;
456
457 case PT_RTCP:
458 udpipaddr_print(ndo, ip, sport, dport);
459 while (cp < ep)
460 cp = rtcp_print(ndo, cp, ep);
461 break;
462
463 case PT_SNMP:
464 udpipaddr_print(ndo, ip, sport, dport);
465 snmp_print(ndo, cp, length);
466 break;
467
468 case PT_CNFP:
469 udpipaddr_print(ndo, ip, sport, dport);
470 cnfp_print(ndo, cp);
471 break;
472
473 case PT_TFTP:
474 udpipaddr_print(ndo, ip, sport, dport);
475 tftp_print(ndo, cp, length);
476 break;
477
478 case PT_AODV:
479 udpipaddr_print(ndo, ip, sport, dport);
480 aodv_print(ndo, cp, length, IP_V(ip) == 6);
481 break;
482
483 case PT_RADIUS:
484 udpipaddr_print(ndo, ip, sport, dport);
485 radius_print(ndo, cp, length);
486 break;
487
488 case PT_VXLAN:
489 udpipaddr_print(ndo, ip, sport, dport);
490 vxlan_print(ndo, cp, length);
491 break;
492
493 case PT_PGM:
494 case PT_PGM_ZMTP1:
495 udpipaddr_print(ndo, ip, sport, dport);
496 pgm_print(ndo, cp, length, bp2);
497 break;
498 case PT_LMP:
499 udpipaddr_print(ndo, ip, sport, dport);
500 lmp_print(ndo, cp, length);
501 break;
502 case PT_PTP:
503 udpipaddr_print(ndo, ip, sport, dport);
504 ptp_print(ndo, cp, length);
505 break;
506 case PT_SOMEIP:
507 udpipaddr_print(ndo, ip, sport, dport);
508 someip_print(ndo, cp, length);
509 break;
510 case PT_DOMAIN:
511 udpipaddr_print(ndo, ip, sport, dport);
512 /* over_tcp: FALSE, is_mdns: FALSE */
513 domain_print(ndo, cp, length, FALSE, FALSE);
514 break;
515 }
516 return;
517 }
518
519 udpipaddr_print(ndo, ip, sport, dport);
520 if (!ndo->ndo_qflag) {
521 const struct sunrpc_msg *rp;
522 enum sunrpc_msg_type direction;
523
524 rp = (const struct sunrpc_msg *)cp;
525 if (ND_TTEST_4(rp->rm_direction)) {
526 direction = (enum sunrpc_msg_type) GET_BE_U_4(rp->rm_direction);
527 if (dport == NFS_PORT && direction == SUNRPC_CALL) {
528 ND_PRINT("NFS request xid %u ",
529 GET_BE_U_4(rp->rm_xid));
530 nfsreq_noaddr_print(ndo, (const u_char *)rp, length,
531 (const u_char *)ip);
532 return;
533 }
534 if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
535 ND_PRINT("NFS reply xid %u ",
536 GET_BE_U_4(rp->rm_xid));
537 nfsreply_noaddr_print(ndo, (const u_char *)rp, length,
538 (const u_char *)ip);
539 return;
540 }
541 #ifdef notdef
542 if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
543 sunrpc_print((const u_char *)rp, length, (const u_char *)ip);
544 return;
545 }
546 #endif
547 }
548 }
549
550 if (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) {
551 /* Check the checksum, if possible. */
552 uint16_t sum, udp_sum;
553
554 /*
555 * XXX - do this even if vflag == 1?
556 * TCP does, and we do so for UDP-over-IPv6.
557 */
558 if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) {
559 udp_sum = GET_BE_U_2(up->uh_sum);
560 if (udp_sum == 0) {
561 ND_PRINT("[no cksum] ");
562 } else if (ND_TTEST_LEN(cp, length)) {
563 sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr));
564
565 if (sum != 0) {
566 ND_PRINT("[bad udp cksum 0x%04x -> 0x%04x!] ",
567 udp_sum,
568 in_cksum_shouldbe(udp_sum, sum));
569 } else
570 ND_PRINT("[udp sum ok] ");
571 }
572 } else if (IP_V(ip) == 6) {
573 /* for IPv6, UDP checksum is mandatory */
574 if (ND_TTEST_LEN(cp, length)) {
575 sum = udp6_cksum(ndo, ip6, up, length + sizeof(struct udphdr));
576 udp_sum = GET_BE_U_2(up->uh_sum);
577
578 if (sum != 0) {
579 ND_PRINT("[bad udp cksum 0x%04x -> 0x%04x!] ",
580 udp_sum,
581 in_cksum_shouldbe(udp_sum, sum));
582 } else
583 ND_PRINT("[udp sum ok] ");
584 }
585 }
586 }
587
588 if (!ndo->ndo_qflag) {
589 if (IS_SRC_OR_DST_PORT(NAMESERVER_PORT))
590 /* over_tcp: FALSE, is_mdns: FALSE */
591 domain_print(ndo, cp, length, FALSE, FALSE);
592 else if (IS_SRC_OR_DST_PORT(BOOTPC_PORT) ||
593 IS_SRC_OR_DST_PORT(BOOTPS_PORT))
594 bootp_print(ndo, cp, length);
595 else if (IS_SRC_OR_DST_PORT(TFTP_PORT))
596 tftp_print(ndo, cp, length);
597 else if (IS_SRC_OR_DST_PORT(KERBEROS_PORT))
598 krb_print(ndo, (const u_char *)cp);
599 else if (IS_SRC_OR_DST_PORT(NTP_PORT))
600 ntp_print(ndo, cp, length);
601 #ifdef ENABLE_SMB
602 else if (IS_SRC_OR_DST_PORT(NETBIOS_NS_PORT))
603 nbt_udp137_print(ndo, cp, length);
604 else if (IS_SRC_OR_DST_PORT(NETBIOS_DGRAM_PORT))
605 nbt_udp138_print(ndo, cp, length);
606 #endif
607 else if (IS_SRC_OR_DST_PORT(SNMP_PORT) ||
608 IS_SRC_OR_DST_PORT(SNMPTRAP_PORT))
609 snmp_print(ndo, cp, length);
610 else if (IS_SRC_OR_DST_PORT(PTP_EVENT_PORT) ||
611 IS_SRC_OR_DST_PORT(PTP_GENERAL_PORT))
612 ptp_print(ndo, cp, length);
613 else if (IS_SRC_OR_DST_PORT(CISCO_AUTORP_PORT))
614 cisco_autorp_print(ndo, cp, length);
615 else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT))
616 isakmp_print(ndo, cp, length, bp2);
617 else if (IS_SRC_OR_DST_PORT(SYSLOG_PORT))
618 syslog_print(ndo, cp, length);
619 else if (IS_SRC_OR_DST_PORT(RIP_PORT))
620 rip_print(ndo, cp, length);
621 else if (IS_SRC_OR_DST_PORT(RIPNG_PORT))
622 ripng_print(ndo, cp, length);
623 else if (IS_SRC_OR_DST_PORT(TIMED_PORT))
624 timed_print(ndo, (const u_char *)cp);
625 else if (IS_SRC_OR_DST_PORT(DHCP6_SERV_PORT) ||
626 IS_SRC_OR_DST_PORT(DHCP6_CLI_PORT))
627 dhcp6_print(ndo, cp, length);
628 else if (IS_SRC_OR_DST_PORT(LDP_PORT))
629 ldp_print(ndo, cp, length);
630 else if (IS_SRC_OR_DST_PORT(AODV_PORT))
631 aodv_print(ndo, cp, length, IP_V(ip) == 6);
632 else if (IS_SRC_OR_DST_PORT(OLSR_PORT))
633 olsr_print(ndo, cp, length, IP_V(ip) == 6);
634 else if (IS_SRC_OR_DST_PORT(LMP_PORT))
635 lmp_print(ndo, cp, length);
636 else if (IS_SRC_OR_DST_PORT(KERBEROS_SEC_PORT))
637 krb_print(ndo, (const u_char *)cp);
638 else if (IS_SRC_OR_DST_PORT(LWRES_PORT))
639 lwres_print(ndo, cp, length);
640 else if (IS_SRC_OR_DST_PORT(MULTICASTDNS_PORT))
641 /* over_tcp: FALSE, is_mdns: TRUE */
642 domain_print(ndo, cp, length, FALSE, TRUE);
643 else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_NATT))
644 isakmp_rfc3948_print(ndo, cp, length, bp2, IP_V(ip), fragmented, ttl_hl);
645 else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER1) || IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER2))
646 isakmp_print(ndo, cp, length, bp2);
647 else if (IS_SRC_OR_DST_PORT(L2TP_PORT))
648 l2tp_print(ndo, cp, length);
649 else if (dport == VAT_PORT)
650 vat_print(ndo, cp, length);
651 else if (IS_SRC_OR_DST_PORT(ZEPHYR_SRV_PORT) || IS_SRC_OR_DST_PORT(ZEPHYR_CLT_PORT))
652 zephyr_print(ndo, cp, length);
653 /*
654 * Since there are 10 possible ports to check, I think
655 * a <> test would be more efficient
656 */
657 else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
658 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
659 rx_print(ndo, cp, length, sport, dport,
660 (const u_char *) ip);
661 else if (IS_SRC_OR_DST_PORT(AHCP_PORT))
662 ahcp_print(ndo, cp, length);
663 else if (IS_SRC_OR_DST_PORT(BABEL_PORT) || IS_SRC_OR_DST_PORT(BABEL_PORT_OLD))
664 babel_print(ndo, cp, length);
665 else if (IS_SRC_OR_DST_PORT(HNCP_PORT))
666 hncp_print(ndo, cp, length);
667 /*
668 * Kludge in test for whiteboard packets.
669 */
670 else if (dport == WB_PORT)
671 wb_print(ndo, cp, length);
672 else if (IS_SRC_OR_DST_PORT(RADIUS_PORT) ||
673 IS_SRC_OR_DST_PORT(RADIUS_NEW_PORT) ||
674 IS_SRC_OR_DST_PORT(RADIUS_ACCOUNTING_PORT) ||
675 IS_SRC_OR_DST_PORT(RADIUS_NEW_ACCOUNTING_PORT) ||
676 IS_SRC_OR_DST_PORT(RADIUS_CISCO_COA_PORT) ||
677 IS_SRC_OR_DST_PORT(RADIUS_COA_PORT) )
678 radius_print(ndo, cp, length);
679 else if (dport == HSRP_PORT)
680 hsrp_print(ndo, cp, length);
681 else if (IS_SRC_OR_DST_PORT(MPLS_LSP_PING_PORT))
682 lspping_print(ndo, cp, length);
683 else if (dport == BFD_CONTROL_PORT ||
684 dport == BFD_MULTIHOP_PORT ||
685 dport == BFD_LAG_PORT ||
686 dport == BFD_ECHO_PORT )
687 bfd_print(ndo, cp, length, dport);
688 else if (IS_SRC_OR_DST_PORT(VQP_PORT))
689 vqp_print(ndo, cp, length);
690 else if (IS_SRC_OR_DST_PORT(SFLOW_PORT))
691 sflow_print(ndo, cp, length);
692 else if (dport == LWAPP_CONTROL_PORT)
693 lwapp_control_print(ndo, cp, length, 1);
694 else if (sport == LWAPP_CONTROL_PORT)
695 lwapp_control_print(ndo, cp, length, 0);
696 else if (IS_SRC_OR_DST_PORT(LWAPP_DATA_PORT))
697 lwapp_data_print(ndo, cp, length);
698 else if (IS_SRC_OR_DST_PORT(SIP_PORT))
699 sip_print(ndo, cp, length);
700 else if (IS_SRC_OR_DST_PORT(OTV_PORT))
701 otv_print(ndo, cp, length);
702 else if (IS_SRC_OR_DST_PORT(VXLAN_PORT))
703 vxlan_print(ndo, cp, length);
704 else if (dport == GENEVE_PORT)
705 geneve_print(ndo, cp, length);
706 else if (IS_SRC_OR_DST_PORT(LISP_CONTROL_PORT))
707 lisp_print(ndo, cp, length);
708 else if (IS_SRC_OR_DST_PORT(VXLAN_GPE_PORT))
709 vxlan_gpe_print(ndo, cp, length);
710 else if (IS_SRC_OR_DST_PORT(ZEP_PORT))
711 zep_print(ndo, cp, length);
712 else if (IS_SRC_OR_DST_PORT(MPLS_PORT))
713 mpls_print(ndo, cp, length);
714 else if (ND_TTEST_1(((const struct LAP *)cp)->type) &&
715 GET_U_1(((const struct LAP *)cp)->type) == lapDDP &&
716 (atalk_port(sport) || atalk_port(dport))) {
717 if (ndo->ndo_vflag)
718 ND_PRINT("kip ");
719 llap_print(ndo, cp, length);
720 } else if (IS_SRC_OR_DST_PORT(SOMEIP_PORT))
721 someip_print(ndo, cp, length);
722 else if (sport == BCM_LI_PORT)
723 bcm_li_print(ndo, cp, length);
724 else {
725 if (ulen > length && !fragmented)
726 ND_PRINT("UDP, bad length %u > %u",
727 ulen, length);
728 else
729 ND_PRINT("UDP, length %u", ulen);
730 }
731 } else {
732 if (ulen > length && !fragmented)
733 ND_PRINT("UDP, bad length %u > %u",
734 ulen, length);
735 else
736 ND_PRINT("UDP, length %u", ulen);
737 }
738 return;
739
740 trunc:
741 nd_print_trunc(ndo);
742 }
[mirror] the TCPdump network dissector