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remove redundant ND_TCHECK, let GET_ routines handle checks
[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 #ifdef HAVE_CONFIG_H
25 #include <config.h>
26 #endif
27
28 #include "netdissect-stdinc.h"
29
30 #include "netdissect.h"
31 #include "addrtoname.h"
32 #include "extract.h"
33 #include "appletalk.h"
34
35 #include "udp.h"
36
37 #include "ip.h"
38 #include "ip6.h"
39 #include "ipproto.h"
40 #include "rpc_auth.h"
41 #include "rpc_msg.h"
42
43 #include "nfs.h"
44
45
46 struct rtcphdr {
47 nd_uint16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */
48 nd_uint16_t rh_len; /* length of message (in words) */
49 nd_uint32_t rh_ssrc; /* synchronization src id */
50 };
51
52 typedef struct {
53 nd_uint32_t upper; /* more significant 32 bits */
54 nd_uint32_t lower; /* less significant 32 bits */
55 } ntp64;
56
57 /*
58 * Sender report.
59 */
60 struct rtcp_sr {
61 ntp64 sr_ntp; /* 64-bit ntp timestamp */
62 nd_uint32_t sr_ts; /* reference media timestamp */
63 nd_uint32_t sr_np; /* no. packets sent */
64 nd_uint32_t sr_nb; /* no. bytes sent */
65 };
66
67 /*
68 * Receiver report.
69 * Time stamps are middle 32-bits of ntp timestamp.
70 */
71 struct rtcp_rr {
72 nd_uint32_t rr_srcid; /* sender being reported */
73 nd_uint32_t rr_nl; /* no. packets lost */
74 nd_uint32_t rr_ls; /* extended last seq number received */
75 nd_uint32_t rr_dv; /* jitter (delay variance) */
76 nd_uint32_t rr_lsr; /* orig. ts from last rr from this src */
77 nd_uint32_t rr_dlsr; /* time from recpt of last rr to xmit time */
78 };
79
80 /*XXX*/
81 #define RTCP_PT_SR 200
82 #define RTCP_PT_RR 201
83 #define RTCP_PT_SDES 202
84 #define RTCP_SDES_CNAME 1
85 #define RTCP_SDES_NAME 2
86 #define RTCP_SDES_EMAIL 3
87 #define RTCP_SDES_PHONE 4
88 #define RTCP_SDES_LOC 5
89 #define RTCP_SDES_TOOL 6
90 #define RTCP_SDES_NOTE 7
91 #define RTCP_SDES_PRIV 8
92 #define RTCP_PT_BYE 203
93 #define RTCP_PT_APP 204
94
95 static void
96 vat_print(netdissect_options *ndo, const u_char *hdr, u_int length)
97 {
98 /* vat/vt audio */
99 u_int ts;
100
101 ndo->ndo_protocol = "vat";
102 if (length < 2) {
103 ND_PRINT("udp/va/vat, length %u < 2", length);
104 return;
105 }
106 ts = GET_BE_U_2(hdr);
107 if ((ts & 0xf060) != 0) {
108 /* probably vt */
109 ND_PRINT("udp/vt %u %u / %u",
110 length,
111 ts & 0x3ff, ts >> 10);
112 } else {
113 /* probably vat */
114 uint32_t i0, i1;
115
116 if (length < 8) {
117 ND_PRINT("udp/vat, length %u < 8", length);
118 return;
119 }
120 i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
121 i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
122 ND_PRINT("udp/vat %u c%u %u%s",
123 length - 8,
124 i0 & 0xffff,
125 i1, i0 & 0x800000? "*" : "");
126 /* audio format */
127 if (i0 & 0x1f0000)
128 ND_PRINT(" f%u", (i0 >> 16) & 0x1f);
129 if (i0 & 0x3f000000)
130 ND_PRINT(" s%u", (i0 >> 24) & 0x3f);
131 }
132 }
133
134 static void
135 rtp_print(netdissect_options *ndo, const u_char *hdr, u_int len)
136 {
137 /* rtp v1 or v2 */
138 const u_int *ip = (const u_int *)hdr;
139 u_int hasopt, hasext, contype, hasmarker, dlen;
140 uint32_t i0, i1;
141 const char * ptype;
142
143 ndo->ndo_protocol = "rtp";
144 if (len < 8) {
145 ND_PRINT("udp/rtp, length %u < 8", len);
146 return;
147 }
148 i0 = GET_BE_U_4(&((const u_int *)hdr)[0]);
149 i1 = GET_BE_U_4(&((const u_int *)hdr)[1]);
150 dlen = len - 8;
151 ip += 2;
152 len >>= 2;
153 len -= 2;
154 hasopt = 0;
155 hasext = 0;
156 if ((i0 >> 30) == 1) {
157 /* rtp v1 - draft-ietf-avt-rtp-04 */
158 hasopt = i0 & 0x800000;
159 contype = (i0 >> 16) & 0x3f;
160 hasmarker = i0 & 0x400000;
161 ptype = "rtpv1";
162 } else {
163 /* rtp v2 - RFC 3550 */
164 if (dlen < 4) {
165 ND_PRINT("udp/rtp, length %u < 12", dlen + 8);
166 return;
167 }
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 ND_PRINT("udp/%s %u c%u %s%s %u %u",
177 ptype,
178 dlen,
179 contype,
180 (hasopt || hasext)? "+" : "",
181 hasmarker? "*" : "",
182 i0 & 0xffff,
183 i1);
184 if (ndo->ndo_vflag) {
185 ND_PRINT(" %u", GET_BE_U_4(&((const u_int *)hdr)[2]));
186 if (hasopt) {
187 u_int i2, optlen;
188 do {
189 i2 = GET_BE_U_4(ip);
190 optlen = (i2 >> 16) & 0xff;
191 if (optlen == 0 || optlen > len) {
192 ND_PRINT(" !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 = GET_BE_U_4(ip);
202 extlen = (i2 & 0xffff) + 1;
203 if (extlen > len) {
204 ND_PRINT(" !ext");
205 return;
206 }
207 ip += extlen;
208 }
209 if (contype == 0x1f) /*XXX H.261 */
210 ND_PRINT(" 0x%04x", GET_BE_U_4(ip) >> 16);
211 }
212 }
213
214 static const u_char *
215 rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)
216 {
217 /* rtp v2 control (rtcp) */
218 const struct rtcp_rr *rr = 0;
219 const struct rtcp_sr *sr;
220 const struct rtcphdr *rh = (const struct rtcphdr *)hdr;
221 u_int len;
222 uint16_t flags;
223 u_int cnt;
224 double ts, dts;
225
226 ndo->ndo_protocol = "rtcp";
227 if ((const u_char *)(rh + 1) > ep)
228 goto trunc;
229 ND_TCHECK_SIZE(rh);
230 len = (GET_BE_U_2(rh->rh_len) + 1) * 4;
231 flags = GET_BE_U_2(rh->rh_flags);
232 cnt = (flags >> 8) & 0x1f;
233 switch (flags & 0xff) {
234 case RTCP_PT_SR:
235 sr = (const struct rtcp_sr *)(rh + 1);
236 ND_PRINT(" sr");
237 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
238 ND_PRINT(" [%u]", len);
239 if (ndo->ndo_vflag)
240 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
241 if ((const u_char *)(sr + 1) > ep)
242 goto trunc;
243 ND_TCHECK_SIZE(sr);
244 ts = (double)(GET_BE_U_4(sr->sr_ntp.upper)) +
245 ((double)(GET_BE_U_4(sr->sr_ntp.lower)) /
246 FMAXINT);
247 ND_PRINT(" @%.2f %u %up %ub", ts, GET_BE_U_4(sr->sr_ts),
248 GET_BE_U_4(sr->sr_np), GET_BE_U_4(sr->sr_nb));
249 rr = (const struct rtcp_rr *)(sr + 1);
250 break;
251 case RTCP_PT_RR:
252 ND_PRINT(" rr");
253 if (len != cnt * sizeof(*rr) + sizeof(*rh))
254 ND_PRINT(" [%u]", len);
255 rr = (const struct rtcp_rr *)(rh + 1);
256 if (ndo->ndo_vflag)
257 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
258 break;
259 case RTCP_PT_SDES:
260 ND_PRINT(" sdes %u", len);
261 if (ndo->ndo_vflag)
262 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
263 cnt = 0;
264 break;
265 case RTCP_PT_BYE:
266 ND_PRINT(" bye %u", len);
267 if (ndo->ndo_vflag)
268 ND_PRINT(" %u", GET_BE_U_4(rh->rh_ssrc));
269 cnt = 0;
270 break;
271 default:
272 ND_PRINT(" type-0x%x %u", flags & 0xff, len);
273 cnt = 0;
274 break;
275 }
276 if (cnt > 1)
277 ND_PRINT(" c%u", cnt);
278 while (cnt != 0) {
279 if ((const u_char *)(rr + 1) > ep)
280 goto trunc;
281 ND_TCHECK_SIZE(rr);
282 if (ndo->ndo_vflag)
283 ND_PRINT(" %u", GET_BE_U_4(rr->rr_srcid));
284 ts = (double)(GET_BE_U_4(rr->rr_lsr)) / 65536.;
285 dts = (double)(GET_BE_U_4(rr->rr_dlsr)) / 65536.;
286 ND_PRINT(" %ul %us %uj @%.2f+%.2f",
287 GET_BE_U_4(rr->rr_nl) & 0x00ffffff,
288 GET_BE_U_4(rr->rr_ls),
289 GET_BE_U_4(rr->rr_dv), ts, dts);
290 cnt--;
291 }
292 return (hdr + len);
293
294 trunc:
295 nd_print_trunc(ndo);
296 return ep;
297 }
298
299 static uint16_t udp_cksum(netdissect_options *ndo, const struct ip *ip,
300 const struct udphdr *up,
301 u_int len)
302 {
303 return nextproto4_cksum(ndo, ip, (const uint8_t *)(const void *)up, len, len,
304 IPPROTO_UDP);
305 }
306
307 static uint16_t udp6_cksum(netdissect_options *ndo, const struct ip6_hdr *ip6,
308 const struct udphdr *up, u_int len)
309 {
310 return nextproto6_cksum(ndo, ip6, (const uint8_t *)(const void *)up, len, len,
311 IPPROTO_UDP);
312 }
313
314 static void
315 udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport)
316 {
317 const struct ip6_hdr *ip6;
318
319 if (IP_V(ip) == 6)
320 ip6 = (const struct ip6_hdr *)ip;
321 else
322 ip6 = NULL;
323
324 if (ip6) {
325 if (GET_U_1(ip6->ip6_nxt) == IPPROTO_UDP) {
326 if (sport == -1) {
327 ND_PRINT("%s > %s: ",
328 ip6addr_string(ndo, ip6->ip6_src),
329 ip6addr_string(ndo, ip6->ip6_dst));
330 } else {
331 ND_PRINT("%s.%s > %s.%s: ",
332 ip6addr_string(ndo, ip6->ip6_src),
333 udpport_string(ndo, (uint16_t)sport),
334 ip6addr_string(ndo, ip6->ip6_dst),
335 udpport_string(ndo, (uint16_t)dport));
336 }
337 } else {
338 if (sport != -1) {
339 ND_PRINT("%s > %s: ",
340 udpport_string(ndo, (uint16_t)sport),
341 udpport_string(ndo, (uint16_t)dport));
342 }
343 }
344 } else {
345 if (GET_U_1(ip->ip_p) == IPPROTO_UDP) {
346 if (sport == -1) {
347 ND_PRINT("%s > %s: ",
348 ipaddr_string(ndo, ip->ip_src),
349 ipaddr_string(ndo, ip->ip_dst));
350 } else {
351 ND_PRINT("%s.%s > %s.%s: ",
352 ipaddr_string(ndo, ip->ip_src),
353 udpport_string(ndo, (uint16_t)sport),
354 ipaddr_string(ndo, ip->ip_dst),
355 udpport_string(ndo, (uint16_t)dport));
356 }
357 } else {
358 if (sport != -1) {
359 ND_PRINT("%s > %s: ",
360 udpport_string(ndo, (uint16_t)sport),
361 udpport_string(ndo, (uint16_t)dport));
362 }
363 }
364 }
365 }
366
367 void
368 udp_print(netdissect_options *ndo, const u_char *bp, u_int length,
369 const u_char *bp2, int fragmented, u_int ttl_hl)
370 {
371 const struct udphdr *up;
372 const struct ip *ip;
373 const u_char *cp;
374 const u_char *ep = ndo->ndo_snapend;
375 uint16_t sport, dport;
376 u_int ulen;
377 const struct ip6_hdr *ip6;
378
379 ndo->ndo_protocol = "udp";
380 up = (const struct udphdr *)bp;
381 ip = (const struct ip *)bp2;
382 if (IP_V(ip) == 6)
383 ip6 = (const struct ip6_hdr *)bp2;
384 else
385 ip6 = NULL;
386 if (!ND_TTEST_2(up->uh_dport)) {
387 udpipaddr_print(ndo, ip, -1, -1);
388 goto trunc;
389 }
390
391 sport = GET_BE_U_2(up->uh_sport);
392 dport = GET_BE_U_2(up->uh_dport);
393
394 if (length < sizeof(struct udphdr)) {
395 udpipaddr_print(ndo, ip, sport, dport);
396 ND_PRINT("truncated-udp %u", length);
397 return;
398 }
399 if (!ND_TTEST_2(up->uh_ulen)) {
400 udpipaddr_print(ndo, ip, sport, dport);
401 goto trunc;
402 }
403 ulen = GET_BE_U_2(up->uh_ulen);
404 /*
405 * IPv6 Jumbo Datagrams; see RFC 2675.
406 * If the length is zero, and the length provided to us is
407 * > 65535, use the provided length as the length.
408 */
409 if (ulen == 0 && length > 65535)
410 ulen = length;
411 if (ulen < sizeof(struct udphdr)) {
412 udpipaddr_print(ndo, ip, sport, dport);
413 ND_PRINT("truncated-udplength %u", ulen);
414 return;
415 }
416 ulen -= sizeof(struct udphdr);
417 length -= sizeof(struct udphdr);
418 if (ulen < length)
419 length = ulen;
420
421 cp = (const u_char *)(up + 1);
422 if (cp > ndo->ndo_snapend) {
423 udpipaddr_print(ndo, ip, sport, dport);
424 goto trunc;
425 }
426
427 if (ndo->ndo_packettype) {
428 const struct sunrpc_msg *rp;
429 enum sunrpc_msg_type direction;
430
431 switch (ndo->ndo_packettype) {
432
433 case PT_VAT:
434 udpipaddr_print(ndo, ip, sport, dport);
435 vat_print(ndo, cp, length);
436 break;
437
438 case PT_WB:
439 udpipaddr_print(ndo, ip, sport, dport);
440 wb_print(ndo, cp, length);
441 break;
442
443 case PT_RPC:
444 rp = (const struct sunrpc_msg *)cp;
445 direction = (enum sunrpc_msg_type) GET_BE_U_4(rp->rm_direction);
446 if (direction == SUNRPC_CALL)
447 sunrpc_print(ndo, (const u_char *)rp, length,
448 (const u_char *)ip);
449 else
450 nfsreply_print(ndo, (const u_char *)rp, length,
451 (const u_char *)ip); /*XXX*/
452 break;
453
454 case PT_RTP:
455 udpipaddr_print(ndo, ip, sport, dport);
456 rtp_print(ndo, cp, length);
457 break;
458
459 case PT_RTCP:
460 udpipaddr_print(ndo, ip, sport, dport);
461 while (cp < ep)
462 cp = rtcp_print(ndo, cp, ep);
463 break;
464
465 case PT_SNMP:
466 udpipaddr_print(ndo, ip, sport, dport);
467 snmp_print(ndo, cp, length);
468 break;
469
470 case PT_CNFP:
471 udpipaddr_print(ndo, ip, sport, dport);
472 cnfp_print(ndo, cp);
473 break;
474
475 case PT_TFTP:
476 udpipaddr_print(ndo, ip, sport, dport);
477 tftp_print(ndo, cp, length);
478 break;
479
480 case PT_AODV:
481 udpipaddr_print(ndo, ip, sport, dport);
482 aodv_print(ndo, cp, length,
483 ip6 != NULL);
484 break;
485
486 case PT_RADIUS:
487 udpipaddr_print(ndo, ip, sport, dport);
488 radius_print(ndo, cp, length);
489 break;
490
491 case PT_VXLAN:
492 udpipaddr_print(ndo, ip, sport, dport);
493 vxlan_print(ndo, cp, length);
494 break;
495
496 case PT_PGM:
497 case PT_PGM_ZMTP1:
498 udpipaddr_print(ndo, ip, sport, dport);
499 pgm_print(ndo, cp, length, bp2);
500 break;
501 case PT_LMP:
502 udpipaddr_print(ndo, ip, sport, dport);
503 lmp_print(ndo, cp, length);
504 break;
505 case PT_PTP:
506 udpipaddr_print(ndo, ip, sport, dport);
507 ptp_print(ndo, cp, length);
508 break;
509 case PT_SOMEIP:
510 udpipaddr_print(ndo, ip, sport, dport);
511 someip_print(ndo, cp, length);
512 break;
513 case PT_DOMAIN:
514 udpipaddr_print(ndo, ip, sport, dport);
515 /* over_tcp: FALSE, is_mdns: FALSE */
516 domain_print(ndo, cp, length, FALSE, FALSE);
517 break;
518 }
519 return;
520 }
521
522 udpipaddr_print(ndo, ip, sport, dport);
523 if (!ndo->ndo_qflag) {
524 const struct sunrpc_msg *rp;
525 enum sunrpc_msg_type direction;
526
527 rp = (const struct sunrpc_msg *)cp;
528 if (ND_TTEST_4(rp->rm_direction)) {
529 direction = (enum sunrpc_msg_type) GET_BE_U_4(rp->rm_direction);
530 if (dport == NFS_PORT && direction == SUNRPC_CALL) {
531 ND_PRINT("NFS request xid %u ",
532 GET_BE_U_4(rp->rm_xid));
533 nfsreq_noaddr_print(ndo, (const u_char *)rp, length,
534 (const u_char *)ip);
535 return;
536 }
537 if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
538 ND_PRINT("NFS reply xid %u ",
539 GET_BE_U_4(rp->rm_xid));
540 nfsreply_noaddr_print(ndo, (const u_char *)rp, length,
541 (const u_char *)ip);
542 return;
543 }
544 #ifdef notdef
545 if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
546 sunrpc_print((const u_char *)rp, length, (const u_char *)ip);
547 return;
548 }
549 #endif
550 }
551 }
552
553 if (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) {
554 /* Check the checksum, if possible. */
555 uint16_t sum, udp_sum;
556
557 /*
558 * XXX - do this even if vflag == 1?
559 * TCP does, and we do so for UDP-over-IPv6.
560 */
561 if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) {
562 udp_sum = GET_BE_U_2(up->uh_sum);
563 if (udp_sum == 0) {
564 ND_PRINT("[no cksum] ");
565 } else if (ND_TTEST_LEN(cp, length)) {
566 sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr));
567
568 if (sum != 0) {
569 ND_PRINT("[bad udp cksum 0x%04x -> 0x%04x!] ",
570 udp_sum,
571 in_cksum_shouldbe(udp_sum, sum));
572 } else
573 ND_PRINT("[udp sum ok] ");
574 }
575 }
576 else if (IP_V(ip) == 6) {
577 /* for IPv6, UDP checksum is mandatory */
578 if (ND_TTEST_LEN(cp, length)) {
579 sum = udp6_cksum(ndo, ip6, up, length + sizeof(struct udphdr));
580 udp_sum = GET_BE_U_2(up->uh_sum);
581
582 if (sum != 0) {
583 ND_PRINT("[bad udp cksum 0x%04x -> 0x%04x!] ",
584 udp_sum,
585 in_cksum_shouldbe(udp_sum, sum));
586 } else
587 ND_PRINT("[udp sum ok] ");
588 }
589 }
590 }
591
592 if (!ndo->ndo_qflag) {
593 if (IS_SRC_OR_DST_PORT(NAMESERVER_PORT))
594 /* over_tcp: FALSE, is_mdns: FALSE */
595 domain_print(ndo, cp, length, FALSE, FALSE);
596 else if (IS_SRC_OR_DST_PORT(MULTICASTDNS_PORT))
597 /* over_tcp: FALSE, is_mdns: TRUE */
598 domain_print(ndo, cp, length, FALSE, TRUE);
599 else if (IS_SRC_OR_DST_PORT(TIMED_PORT))
600 timed_print(ndo, (const u_char *)cp);
601 else if (IS_SRC_OR_DST_PORT(TFTP_PORT))
602 tftp_print(ndo, cp, length);
603 else if (IS_SRC_OR_DST_PORT(BOOTPC_PORT) || IS_SRC_OR_DST_PORT(BOOTPS_PORT))
604 bootp_print(ndo, cp, length);
605 else if (IS_SRC_OR_DST_PORT(RIP_PORT))
606 rip_print(ndo, cp, length);
607 else if (IS_SRC_OR_DST_PORT(AODV_PORT))
608 aodv_print(ndo, cp, length,
609 ip6 != NULL);
610 else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT))
611 isakmp_print(ndo, cp, length, bp2);
612 else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_NATT))
613 isakmp_rfc3948_print(ndo, cp, length, bp2, IP_V(ip), fragmented, ttl_hl);
614 else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER1) || IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER2))
615 isakmp_print(ndo, cp, length, bp2);
616 else if (IS_SRC_OR_DST_PORT(SNMP_PORT) || IS_SRC_OR_DST_PORT(SNMPTRAP_PORT))
617 snmp_print(ndo, cp, length);
618 else if (IS_SRC_OR_DST_PORT(NTP_PORT))
619 ntp_print(ndo, cp, length);
620 else if (IS_SRC_OR_DST_PORT(KERBEROS_PORT) || IS_SRC_OR_DST_PORT(KERBEROS_SEC_PORT))
621 krb_print(ndo, (const u_char *)cp);
622 else if (IS_SRC_OR_DST_PORT(L2TP_PORT))
623 l2tp_print(ndo, cp, length);
624 #ifdef ENABLE_SMB
625 else if (IS_SRC_OR_DST_PORT(NETBIOS_NS_PORT))
626 nbt_udp137_print(ndo, cp, length);
627 else if (IS_SRC_OR_DST_PORT(NETBIOS_DGRAM_PORT))
628 nbt_udp138_print(ndo, cp, length);
629 #endif
630 else if (dport == VAT_PORT)
631 vat_print(ndo, cp, length);
632 else if (IS_SRC_OR_DST_PORT(ZEPHYR_SRV_PORT) || IS_SRC_OR_DST_PORT(ZEPHYR_CLT_PORT))
633 zephyr_print(ndo, cp, length);
634 /*
635 * Since there are 10 possible ports to check, I think
636 * a <> test would be more efficient
637 */
638 else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||
639 (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))
640 rx_print(ndo, cp, length, sport, dport,
641 (const u_char *) ip);
642 else if (IS_SRC_OR_DST_PORT(RIPNG_PORT))
643 ripng_print(ndo, cp, length);
644 else if (IS_SRC_OR_DST_PORT(DHCP6_SERV_PORT) || IS_SRC_OR_DST_PORT(DHCP6_CLI_PORT))
645 dhcp6_print(ndo, cp, length);
646 else if (IS_SRC_OR_DST_PORT(AHCP_PORT))
647 ahcp_print(ndo, cp, length);
648 else if (IS_SRC_OR_DST_PORT(BABEL_PORT) || IS_SRC_OR_DST_PORT(BABEL_PORT_OLD))
649 babel_print(ndo, cp, length);
650 else if (IS_SRC_OR_DST_PORT(HNCP_PORT))
651 hncp_print(ndo, cp, length);
652 /*
653 * Kludge in test for whiteboard packets.
654 */
655 else if (dport == WB_PORT)
656 wb_print(ndo, cp, length);
657 else if (IS_SRC_OR_DST_PORT(CISCO_AUTORP_PORT))
658 cisco_autorp_print(ndo, cp, length);
659 else if (IS_SRC_OR_DST_PORT(RADIUS_PORT) ||
660 IS_SRC_OR_DST_PORT(RADIUS_NEW_PORT) ||
661 IS_SRC_OR_DST_PORT(RADIUS_ACCOUNTING_PORT) ||
662 IS_SRC_OR_DST_PORT(RADIUS_NEW_ACCOUNTING_PORT) ||
663 IS_SRC_OR_DST_PORT(RADIUS_CISCO_COA_PORT) ||
664 IS_SRC_OR_DST_PORT(RADIUS_COA_PORT) )
665 radius_print(ndo, cp, length);
666 else if (dport == HSRP_PORT)
667 hsrp_print(ndo, cp, length);
668 else if (IS_SRC_OR_DST_PORT(LWRES_PORT))
669 lwres_print(ndo, cp, length);
670 else if (IS_SRC_OR_DST_PORT(LDP_PORT))
671 ldp_print(ndo, cp, length);
672 else if (IS_SRC_OR_DST_PORT(OLSR_PORT))
673 olsr_print(ndo, cp, length,
674 (IP_V(ip) == 6) ? 1 : 0);
675 else if (IS_SRC_OR_DST_PORT(MPLS_LSP_PING_PORT))
676 lspping_print(ndo, cp, length);
677 else if (sport == BCM_LI_PORT)
678 bcm_li_print(ndo, cp, length);
679 else if (dport == BFD_CONTROL_PORT ||
680 dport == BFD_MULTIHOP_PORT ||
681 dport == BFD_LAG_PORT ||
682 dport == BFD_ECHO_PORT )
683 bfd_print(ndo, cp, length, dport);
684 else if (IS_SRC_OR_DST_PORT(LMP_PORT))
685 lmp_print(ndo, cp, length);
686 else if (IS_SRC_OR_DST_PORT(VQP_PORT))
687 vqp_print(ndo, cp, length);
688 else if (IS_SRC_OR_DST_PORT(SFLOW_PORT))
689 sflow_print(ndo, cp, length);
690 else if (dport == LWAPP_CONTROL_PORT)
691 lwapp_control_print(ndo, cp, length, 1);
692 else if (sport == LWAPP_CONTROL_PORT)
693 lwapp_control_print(ndo, cp, length, 0);
694 else if (IS_SRC_OR_DST_PORT(LWAPP_DATA_PORT))
695 lwapp_data_print(ndo, cp, length);
696 else if (IS_SRC_OR_DST_PORT(SIP_PORT))
697 sip_print(ndo, cp, length);
698 else if (IS_SRC_OR_DST_PORT(SYSLOG_PORT))
699 syslog_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 (IS_SRC_OR_DST_PORT(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(PTP_EVENT_PORT) ||
721 IS_SRC_OR_DST_PORT(PTP_GENERAL_PORT)) {
722 ptp_print(ndo, cp, length);
723 } else if (IS_SRC_OR_DST_PORT(SOMEIP_PORT))
724 someip_print(ndo, cp, length);
725 else {
726 if (ulen > length && !fragmented)
727 ND_PRINT("UDP, bad length %u > %u",
728 ulen, length);
729 else
730 ND_PRINT("UDP, length %u", ulen);
731 }
732 } else {
733 if (ulen > length && !fragmented)
734 ND_PRINT("UDP, bad length %u > %u",
735 ulen, length);
736 else
737 ND_PRINT("UDP, length %u", ulen);
738 }
739 return;
740
741 trunc:
742 nd_print_trunc(ndo);
743 }
[mirror] the TCPdump network dissector