Deleted Added
full compact
print-udp.c (26183) print-udp.c (39300)
1/*
1/*
2 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
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
23static const char rcsid[] =
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
23static const char rcsid[] =
24 "@(#) $Header: print-udp.c,v 1.58 96/12/10 23:22:07 leres Exp $ (LBL)";
24 "@(#) $Header: print-udp.c,v 1.60 97/07/27 21:58:48 leres Exp $ (LBL)";
25#endif
26
27#include <sys/param.h>
28#include <sys/time.h>
29#include <sys/socket.h>
30
31#include <netinet/in.h>
32#include <netinet/in_systm.h>
33#include <netinet/ip.h>
34#include <netinet/ip_var.h>
35#include <netinet/udp.h>
36#include <netinet/udp_var.h>
37
25#endif
26
27#include <sys/param.h>
28#include <sys/time.h>
29#include <sys/socket.h>
30
31#include <netinet/in.h>
32#include <netinet/in_systm.h>
33#include <netinet/ip.h>
34#include <netinet/ip_var.h>
35#include <netinet/udp.h>
36#include <netinet/udp_var.h>
37
38#ifdef NOERROR
38#undef NOERROR /* Solaris sucks */
39#undef NOERROR /* Solaris sucks */
40#endif
41#ifdef T_UNSPEC
39#undef T_UNSPEC /* SINIX does too */
42#undef T_UNSPEC /* SINIX does too */
43#endif
40#include <arpa/nameser.h>
44#include <arpa/nameser.h>
45#ifdef SEGSIZE
46#undef SEGSIZE
47#endif
41#include <arpa/tftp.h>
42
43#include <rpc/rpc.h>
44
45#include <stdio.h>
46
47#include "interface.h"
48#include "addrtoname.h"
49#include "appletalk.h"
50
51#include "nfs.h"
52#include "bootp.h"
53
54struct rtcphdr {
55 u_short rh_flags; /* T:2 P:1 CNT:5 PT:8 */
56 u_short rh_len; /* length of message (in words) */
57 u_int rh_ssrc; /* synchronization src id */
58};
59
60typedef struct {
61 u_int upper; /* more significant 32 bits */
62 u_int lower; /* less significant 32 bits */
63} ntp64;
64
65/*
66 * Sender report.
67 */
68struct rtcp_sr {
69 ntp64 sr_ntp; /* 64-bit ntp timestamp */
70 u_int sr_ts; /* reference media timestamp */
71 u_int sr_np; /* no. packets sent */
72 u_int sr_nb; /* no. bytes sent */
73};
74
75/*
76 * Receiver report.
77 * Time stamps are middle 32-bits of ntp timestamp.
78 */
79struct rtcp_rr {
80 u_int rr_srcid; /* sender being reported */
81 u_int rr_nl; /* no. packets lost */
82 u_int rr_ls; /* extended last seq number received */
83 u_int rr_dv; /* jitter (delay variance) */
84 u_int rr_lsr; /* orig. ts from last rr from this src */
85 u_int rr_dlsr; /* time from recpt of last rr to xmit time */
86};
87
88/*XXX*/
89#define RTCP_PT_SR 200
90#define RTCP_PT_RR 201
91#define RTCP_PT_SDES 202
92#define RTCP_SDES_CNAME 1
93#define RTCP_SDES_NAME 2
94#define RTCP_SDES_EMAIL 3
95#define RTCP_SDES_PHONE 4
96#define RTCP_SDES_LOC 5
97#define RTCP_SDES_TOOL 6
98#define RTCP_SDES_NOTE 7
99#define RTCP_SDES_PRIV 8
100#define RTCP_PT_BYE 203
101#define RTCP_PT_APP 204
102
103static void
104vat_print(const void *hdr, u_int len, register const struct udphdr *up)
105{
106 /* vat/vt audio */
107 u_int ts = *(u_short *)hdr;
108 if ((ts & 0xf060) != 0) {
109 /* probably vt */
110 (void)printf(" udp/vt %u %d / %d",
111 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up)),
112 ts & 0x3ff, ts >> 10);
113 } else {
114 /* probably vat */
115 u_int i0 = ntohl(((u_int *)hdr)[0]);
116 u_int i1 = ntohl(((u_int *)hdr)[1]);
117 printf(" udp/vat %u c%d %u%s",
118 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up) - 8),
119 i0 & 0xffff,
120 i1, i0 & 0x800000? "*" : "");
121 /* audio format */
122 if (i0 & 0x1f0000)
123 printf(" f%d", (i0 >> 16) & 0x1f);
124 if (i0 & 0x3f000000)
125 printf(" s%d", (i0 >> 24) & 0x3f);
126 }
127}
128
129static void
130rtp_print(const void *hdr, u_int len, register const struct udphdr *up)
131{
132 /* rtp v1 or v2 */
133 u_int *ip = (u_int *)hdr;
134 u_int hasopt, hasext, contype, hasmarker;
135 u_int i0 = ntohl(((u_int *)hdr)[0]);
136 u_int i1 = ntohl(((u_int *)hdr)[1]);
137 u_int dlen = ntohs(up->uh_ulen) - sizeof(*up) - 8;
138 const char * ptype;
139
140 ip += 2;
141 len >>= 2;
142 len -= 2;
143 hasopt = 0;
144 hasext = 0;
145 if ((i0 >> 30) == 1) {
146 /* rtp v1 */
147 hasopt = i0 & 0x800000;
148 contype = (i0 >> 16) & 0x3f;
149 hasmarker = i0 & 0x400000;
150 ptype = "rtpv1";
151 } else {
152 /* rtp v2 */
153 hasext = i0 & 0x10000000;
154 contype = (i0 >> 16) & 0x7f;
155 hasmarker = i0 & 0x800000;
156 dlen -= 4;
157 ptype = "rtp";
158 ip += 1;
159 len -= 1;
160 }
161 printf(" udp/%s %d c%d %s%s %d %u",
162 ptype,
163 dlen,
164 contype,
165 (hasopt || hasext)? "+" : "",
166 hasmarker? "*" : "",
167 i0 & 0xffff,
168 i1);
169 if (vflag) {
170 printf(" %u", i1);
171 if (hasopt) {
172 u_int i2, optlen;
173 do {
174 i2 = ip[0];
175 optlen = (i2 >> 16) & 0xff;
176 if (optlen == 0 || optlen > len) {
177 printf(" !opt");
178 return;
179 }
180 ip += optlen;
181 len -= optlen;
182 } while ((int)i2 >= 0);
183 }
184 if (hasext) {
185 u_int i2, extlen;
186 i2 = ip[0];
187 extlen = (i2 & 0xffff) + 1;
188 if (extlen > len) {
189 printf(" !ext");
190 return;
191 }
192 ip += extlen;
193 }
194 if (contype == 0x1f) /*XXX H.261 */
195 printf(" 0x%04x", ip[0] >> 16);
196 }
197}
198
199static const u_char *
200rtcp_print(const u_char *hdr, const u_char *ep)
201{
202 /* rtp v2 control (rtcp) */
203 struct rtcp_rr *rr = 0;
204 struct rtcp_sr *sr;
205 struct rtcphdr *rh = (struct rtcphdr *)hdr;
206 u_int len;
207 u_short flags;
208 int cnt;
209 double ts, dts;
210 if ((u_char *)(rh + 1) > ep) {
211 printf(" [|rtcp]");
212 return (ep);
213 }
214 len = (ntohs(rh->rh_len) + 1) * 4;
215 flags = ntohs(rh->rh_flags);
216 cnt = (flags >> 8) & 0x1f;
217 switch (flags & 0xff) {
218 case RTCP_PT_SR:
219 sr = (struct rtcp_sr *)(rh + 1);
220 printf(" sr");
221 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
222 printf(" [%d]", len);
223 if (vflag)
224 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
225 if ((u_char *)(sr + 1) > ep) {
226 printf(" [|rtcp]");
227 return (ep);
228 }
229 ts = (double)((u_int32_t)ntohl(sr->sr_ntp.upper)) +
230 ((double)((u_int32_t)ntohl(sr->sr_ntp.lower)) /
231 4294967296.0);
232 printf(" @%.2f %u %up %ub", ts, (u_int32_t)ntohl(sr->sr_ts),
233 (u_int32_t)ntohl(sr->sr_np), (u_int32_t)ntohl(sr->sr_nb));
234 rr = (struct rtcp_rr *)(sr + 1);
235 break;
236 case RTCP_PT_RR:
237 printf(" rr");
238 if (len != cnt * sizeof(*rr) + sizeof(*rh))
239 printf(" [%d]", len);
240 rr = (struct rtcp_rr *)(rh + 1);
241 if (vflag)
242 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
243 break;
244 case RTCP_PT_SDES:
245 printf(" sdes %d", len);
246 if (vflag)
247 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
248 cnt = 0;
249 break;
250 case RTCP_PT_BYE:
251 printf(" bye %d", len);
252 if (vflag)
253 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
254 cnt = 0;
255 break;
256 default:
257 printf(" type-0x%x %d", flags & 0xff, len);
258 cnt = 0;
259 break;
260 }
261 if (cnt > 1)
262 printf(" c%d", cnt);
263 while (--cnt >= 0) {
264 if ((u_char *)(rr + 1) > ep) {
265 printf(" [|rtcp]");
266 return (ep);
267 }
268 if (vflag)
269 printf(" %u", (u_int32_t)ntohl(rr->rr_srcid));
270 ts = (double)((u_int32_t)ntohl(rr->rr_lsr)) / 65536.;
271 dts = (double)((u_int32_t)ntohl(rr->rr_dlsr)) / 65536.;
272 printf(" %ul %us %uj @%.2f+%.2f",
273 (u_int32_t)ntohl(rr->rr_nl) & 0x00ffffff,
274 (u_int32_t)ntohl(rr->rr_ls),
275 (u_int32_t)ntohl(rr->rr_dv), ts, dts);
276 }
277 return (hdr + len);
278}
279
280/* XXX probably should use getservbyname() and cache answers */
281#define TFTP_PORT 69 /*XXX*/
282#define KERBEROS_PORT 88 /*XXX*/
283#define SUNRPC_PORT 111 /*XXX*/
284#define SNMP_PORT 161 /*XXX*/
285#define NTP_PORT 123 /*XXX*/
286#define SNMPTRAP_PORT 162 /*XXX*/
287#define RIP_PORT 520 /*XXX*/
288#define KERBEROS_SEC_PORT 750 /*XXX*/
289
290void
291udp_print(register const u_char *bp, u_int length, register const u_char *bp2)
292{
293 register const struct udphdr *up;
294 register const struct ip *ip;
295 register const u_char *cp;
296 register const u_char *ep = bp + length;
297 u_short sport, dport, ulen;
298
299 if (ep > snapend)
300 ep = snapend;
301 up = (struct udphdr *)bp;
302 ip = (struct ip *)bp2;
303 cp = (u_char *)(up + 1);
304 if (cp > snapend) {
305 printf("[|udp]");
306 return;
307 }
308 if (length < sizeof(struct udphdr)) {
309 (void)printf(" truncated-udp %d", length);
310 return;
311 }
312 length -= sizeof(struct udphdr);
313
314 sport = ntohs(up->uh_sport);
315 dport = ntohs(up->uh_dport);
316 ulen = ntohs(up->uh_ulen);
317 if (packettype) {
318 register struct rpc_msg *rp;
319 enum msg_type direction;
320
321 switch (packettype) {
322
323 case PT_VAT:
324 (void)printf("%s.%s > %s.%s:",
325 ipaddr_string(&ip->ip_src),
326 udpport_string(sport),
327 ipaddr_string(&ip->ip_dst),
328 udpport_string(dport));
329 vat_print((void *)(up + 1), length, up);
330 break;
331
332 case PT_WB:
333 (void)printf("%s.%s > %s.%s:",
334 ipaddr_string(&ip->ip_src),
335 udpport_string(sport),
336 ipaddr_string(&ip->ip_dst),
337 udpport_string(dport));
338 wb_print((void *)(up + 1), length);
339 break;
340
341 case PT_RPC:
342 rp = (struct rpc_msg *)(up + 1);
343 direction = (enum msg_type)ntohl(rp->rm_direction);
344 if (direction == CALL)
345 sunrpcrequest_print((u_char *)rp, length,
346 (u_char *)ip);
347 else
348 nfsreply_print((u_char *)rp, length,
349 (u_char *)ip); /*XXX*/
350 break;
351
352 case PT_RTP:
353 (void)printf("%s.%s > %s.%s:",
354 ipaddr_string(&ip->ip_src),
355 udpport_string(sport),
356 ipaddr_string(&ip->ip_dst),
357 udpport_string(dport));
358 rtp_print((void *)(up + 1), length, up);
359 break;
360
361 case PT_RTCP:
362 (void)printf("%s.%s > %s.%s:",
363 ipaddr_string(&ip->ip_src),
364 udpport_string(sport),
365 ipaddr_string(&ip->ip_dst),
366 udpport_string(dport));
367 while (cp < ep)
368 cp = rtcp_print(cp, ep);
369 break;
370 }
371 return;
372 }
373
374 if (!qflag) {
375 register struct rpc_msg *rp;
376 enum msg_type direction;
377
378 rp = (struct rpc_msg *)(up + 1);
379 if (TTEST(rp->rm_direction)) {
380 direction = (enum msg_type)ntohl(rp->rm_direction);
381 if (dport == NFS_PORT && direction == CALL) {
382 nfsreq_print((u_char *)rp, length,
383 (u_char *)ip);
384 return;
385 }
386 if (sport == NFS_PORT && direction == REPLY) {
387 nfsreply_print((u_char *)rp, length,
388 (u_char *)ip);
389 return;
390 }
391#ifdef notdef
392 if (dport == SUNRPC_PORT && direction == CALL) {
393 sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
394 return;
395 }
396#endif
397 }
398 if (TTEST(((struct LAP *)cp)->type) &&
399 ((struct LAP *)cp)->type == lapDDP &&
400 (atalk_port(sport) || atalk_port(dport))) {
401 if (vflag)
402 fputs("kip ", stdout);
403 atalk_print(cp, length);
404 return;
405 }
406 }
407 (void)printf("%s.%s > %s.%s:",
408 ipaddr_string(&ip->ip_src), udpport_string(sport),
409 ipaddr_string(&ip->ip_dst), udpport_string(dport));
410
411 if (!qflag) {
412#define ISPORT(p) (dport == (p) || sport == (p))
413 if (ISPORT(NAMESERVER_PORT))
414 ns_print((const u_char *)(up + 1), length);
415 else if (ISPORT(TFTP_PORT))
416 tftp_print((const u_char *)(up + 1), length);
417 else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
418 bootp_print((const u_char *)(up + 1), length,
419 sport, dport);
420 else if (ISPORT(RIP_PORT))
421 rip_print((const u_char *)(up + 1), length);
422 else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
423 snmp_print((const u_char *)(up + 1), length);
424 else if (ISPORT(NTP_PORT))
425 ntp_print((const u_char *)(up + 1), length);
426 else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))
427 krb_print((const void *)(up + 1), length);
428 else if (dport == 3456)
429 vat_print((const void *)(up + 1), length, up);
430 /*
431 * Kludge in test for whiteboard packets.
432 */
433 else if (dport == 4567)
434 wb_print((const void *)(up + 1), length);
435 else
436 (void)printf(" udp %u",
437 (u_int32_t)(ulen - sizeof(*up)));
438#undef ISPORT
439 } else
440 (void)printf(" udp %u", (u_int32_t)(ulen - sizeof(*up)));
441}
48#include <arpa/tftp.h>
49
50#include <rpc/rpc.h>
51
52#include <stdio.h>
53
54#include "interface.h"
55#include "addrtoname.h"
56#include "appletalk.h"
57
58#include "nfs.h"
59#include "bootp.h"
60
61struct rtcphdr {
62 u_short rh_flags; /* T:2 P:1 CNT:5 PT:8 */
63 u_short rh_len; /* length of message (in words) */
64 u_int rh_ssrc; /* synchronization src id */
65};
66
67typedef struct {
68 u_int upper; /* more significant 32 bits */
69 u_int lower; /* less significant 32 bits */
70} ntp64;
71
72/*
73 * Sender report.
74 */
75struct rtcp_sr {
76 ntp64 sr_ntp; /* 64-bit ntp timestamp */
77 u_int sr_ts; /* reference media timestamp */
78 u_int sr_np; /* no. packets sent */
79 u_int sr_nb; /* no. bytes sent */
80};
81
82/*
83 * Receiver report.
84 * Time stamps are middle 32-bits of ntp timestamp.
85 */
86struct rtcp_rr {
87 u_int rr_srcid; /* sender being reported */
88 u_int rr_nl; /* no. packets lost */
89 u_int rr_ls; /* extended last seq number received */
90 u_int rr_dv; /* jitter (delay variance) */
91 u_int rr_lsr; /* orig. ts from last rr from this src */
92 u_int rr_dlsr; /* time from recpt of last rr to xmit time */
93};
94
95/*XXX*/
96#define RTCP_PT_SR 200
97#define RTCP_PT_RR 201
98#define RTCP_PT_SDES 202
99#define RTCP_SDES_CNAME 1
100#define RTCP_SDES_NAME 2
101#define RTCP_SDES_EMAIL 3
102#define RTCP_SDES_PHONE 4
103#define RTCP_SDES_LOC 5
104#define RTCP_SDES_TOOL 6
105#define RTCP_SDES_NOTE 7
106#define RTCP_SDES_PRIV 8
107#define RTCP_PT_BYE 203
108#define RTCP_PT_APP 204
109
110static void
111vat_print(const void *hdr, u_int len, register const struct udphdr *up)
112{
113 /* vat/vt audio */
114 u_int ts = *(u_short *)hdr;
115 if ((ts & 0xf060) != 0) {
116 /* probably vt */
117 (void)printf(" udp/vt %u %d / %d",
118 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up)),
119 ts & 0x3ff, ts >> 10);
120 } else {
121 /* probably vat */
122 u_int i0 = ntohl(((u_int *)hdr)[0]);
123 u_int i1 = ntohl(((u_int *)hdr)[1]);
124 printf(" udp/vat %u c%d %u%s",
125 (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up) - 8),
126 i0 & 0xffff,
127 i1, i0 & 0x800000? "*" : "");
128 /* audio format */
129 if (i0 & 0x1f0000)
130 printf(" f%d", (i0 >> 16) & 0x1f);
131 if (i0 & 0x3f000000)
132 printf(" s%d", (i0 >> 24) & 0x3f);
133 }
134}
135
136static void
137rtp_print(const void *hdr, u_int len, register const struct udphdr *up)
138{
139 /* rtp v1 or v2 */
140 u_int *ip = (u_int *)hdr;
141 u_int hasopt, hasext, contype, hasmarker;
142 u_int i0 = ntohl(((u_int *)hdr)[0]);
143 u_int i1 = ntohl(((u_int *)hdr)[1]);
144 u_int dlen = ntohs(up->uh_ulen) - sizeof(*up) - 8;
145 const char * ptype;
146
147 ip += 2;
148 len >>= 2;
149 len -= 2;
150 hasopt = 0;
151 hasext = 0;
152 if ((i0 >> 30) == 1) {
153 /* rtp v1 */
154 hasopt = i0 & 0x800000;
155 contype = (i0 >> 16) & 0x3f;
156 hasmarker = i0 & 0x400000;
157 ptype = "rtpv1";
158 } else {
159 /* rtp v2 */
160 hasext = i0 & 0x10000000;
161 contype = (i0 >> 16) & 0x7f;
162 hasmarker = i0 & 0x800000;
163 dlen -= 4;
164 ptype = "rtp";
165 ip += 1;
166 len -= 1;
167 }
168 printf(" udp/%s %d c%d %s%s %d %u",
169 ptype,
170 dlen,
171 contype,
172 (hasopt || hasext)? "+" : "",
173 hasmarker? "*" : "",
174 i0 & 0xffff,
175 i1);
176 if (vflag) {
177 printf(" %u", i1);
178 if (hasopt) {
179 u_int i2, optlen;
180 do {
181 i2 = ip[0];
182 optlen = (i2 >> 16) & 0xff;
183 if (optlen == 0 || optlen > len) {
184 printf(" !opt");
185 return;
186 }
187 ip += optlen;
188 len -= optlen;
189 } while ((int)i2 >= 0);
190 }
191 if (hasext) {
192 u_int i2, extlen;
193 i2 = ip[0];
194 extlen = (i2 & 0xffff) + 1;
195 if (extlen > len) {
196 printf(" !ext");
197 return;
198 }
199 ip += extlen;
200 }
201 if (contype == 0x1f) /*XXX H.261 */
202 printf(" 0x%04x", ip[0] >> 16);
203 }
204}
205
206static const u_char *
207rtcp_print(const u_char *hdr, const u_char *ep)
208{
209 /* rtp v2 control (rtcp) */
210 struct rtcp_rr *rr = 0;
211 struct rtcp_sr *sr;
212 struct rtcphdr *rh = (struct rtcphdr *)hdr;
213 u_int len;
214 u_short flags;
215 int cnt;
216 double ts, dts;
217 if ((u_char *)(rh + 1) > ep) {
218 printf(" [|rtcp]");
219 return (ep);
220 }
221 len = (ntohs(rh->rh_len) + 1) * 4;
222 flags = ntohs(rh->rh_flags);
223 cnt = (flags >> 8) & 0x1f;
224 switch (flags & 0xff) {
225 case RTCP_PT_SR:
226 sr = (struct rtcp_sr *)(rh + 1);
227 printf(" sr");
228 if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
229 printf(" [%d]", len);
230 if (vflag)
231 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
232 if ((u_char *)(sr + 1) > ep) {
233 printf(" [|rtcp]");
234 return (ep);
235 }
236 ts = (double)((u_int32_t)ntohl(sr->sr_ntp.upper)) +
237 ((double)((u_int32_t)ntohl(sr->sr_ntp.lower)) /
238 4294967296.0);
239 printf(" @%.2f %u %up %ub", ts, (u_int32_t)ntohl(sr->sr_ts),
240 (u_int32_t)ntohl(sr->sr_np), (u_int32_t)ntohl(sr->sr_nb));
241 rr = (struct rtcp_rr *)(sr + 1);
242 break;
243 case RTCP_PT_RR:
244 printf(" rr");
245 if (len != cnt * sizeof(*rr) + sizeof(*rh))
246 printf(" [%d]", len);
247 rr = (struct rtcp_rr *)(rh + 1);
248 if (vflag)
249 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
250 break;
251 case RTCP_PT_SDES:
252 printf(" sdes %d", len);
253 if (vflag)
254 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
255 cnt = 0;
256 break;
257 case RTCP_PT_BYE:
258 printf(" bye %d", len);
259 if (vflag)
260 printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));
261 cnt = 0;
262 break;
263 default:
264 printf(" type-0x%x %d", flags & 0xff, len);
265 cnt = 0;
266 break;
267 }
268 if (cnt > 1)
269 printf(" c%d", cnt);
270 while (--cnt >= 0) {
271 if ((u_char *)(rr + 1) > ep) {
272 printf(" [|rtcp]");
273 return (ep);
274 }
275 if (vflag)
276 printf(" %u", (u_int32_t)ntohl(rr->rr_srcid));
277 ts = (double)((u_int32_t)ntohl(rr->rr_lsr)) / 65536.;
278 dts = (double)((u_int32_t)ntohl(rr->rr_dlsr)) / 65536.;
279 printf(" %ul %us %uj @%.2f+%.2f",
280 (u_int32_t)ntohl(rr->rr_nl) & 0x00ffffff,
281 (u_int32_t)ntohl(rr->rr_ls),
282 (u_int32_t)ntohl(rr->rr_dv), ts, dts);
283 }
284 return (hdr + len);
285}
286
287/* XXX probably should use getservbyname() and cache answers */
288#define TFTP_PORT 69 /*XXX*/
289#define KERBEROS_PORT 88 /*XXX*/
290#define SUNRPC_PORT 111 /*XXX*/
291#define SNMP_PORT 161 /*XXX*/
292#define NTP_PORT 123 /*XXX*/
293#define SNMPTRAP_PORT 162 /*XXX*/
294#define RIP_PORT 520 /*XXX*/
295#define KERBEROS_SEC_PORT 750 /*XXX*/
296
297void
298udp_print(register const u_char *bp, u_int length, register const u_char *bp2)
299{
300 register const struct udphdr *up;
301 register const struct ip *ip;
302 register const u_char *cp;
303 register const u_char *ep = bp + length;
304 u_short sport, dport, ulen;
305
306 if (ep > snapend)
307 ep = snapend;
308 up = (struct udphdr *)bp;
309 ip = (struct ip *)bp2;
310 cp = (u_char *)(up + 1);
311 if (cp > snapend) {
312 printf("[|udp]");
313 return;
314 }
315 if (length < sizeof(struct udphdr)) {
316 (void)printf(" truncated-udp %d", length);
317 return;
318 }
319 length -= sizeof(struct udphdr);
320
321 sport = ntohs(up->uh_sport);
322 dport = ntohs(up->uh_dport);
323 ulen = ntohs(up->uh_ulen);
324 if (packettype) {
325 register struct rpc_msg *rp;
326 enum msg_type direction;
327
328 switch (packettype) {
329
330 case PT_VAT:
331 (void)printf("%s.%s > %s.%s:",
332 ipaddr_string(&ip->ip_src),
333 udpport_string(sport),
334 ipaddr_string(&ip->ip_dst),
335 udpport_string(dport));
336 vat_print((void *)(up + 1), length, up);
337 break;
338
339 case PT_WB:
340 (void)printf("%s.%s > %s.%s:",
341 ipaddr_string(&ip->ip_src),
342 udpport_string(sport),
343 ipaddr_string(&ip->ip_dst),
344 udpport_string(dport));
345 wb_print((void *)(up + 1), length);
346 break;
347
348 case PT_RPC:
349 rp = (struct rpc_msg *)(up + 1);
350 direction = (enum msg_type)ntohl(rp->rm_direction);
351 if (direction == CALL)
352 sunrpcrequest_print((u_char *)rp, length,
353 (u_char *)ip);
354 else
355 nfsreply_print((u_char *)rp, length,
356 (u_char *)ip); /*XXX*/
357 break;
358
359 case PT_RTP:
360 (void)printf("%s.%s > %s.%s:",
361 ipaddr_string(&ip->ip_src),
362 udpport_string(sport),
363 ipaddr_string(&ip->ip_dst),
364 udpport_string(dport));
365 rtp_print((void *)(up + 1), length, up);
366 break;
367
368 case PT_RTCP:
369 (void)printf("%s.%s > %s.%s:",
370 ipaddr_string(&ip->ip_src),
371 udpport_string(sport),
372 ipaddr_string(&ip->ip_dst),
373 udpport_string(dport));
374 while (cp < ep)
375 cp = rtcp_print(cp, ep);
376 break;
377 }
378 return;
379 }
380
381 if (!qflag) {
382 register struct rpc_msg *rp;
383 enum msg_type direction;
384
385 rp = (struct rpc_msg *)(up + 1);
386 if (TTEST(rp->rm_direction)) {
387 direction = (enum msg_type)ntohl(rp->rm_direction);
388 if (dport == NFS_PORT && direction == CALL) {
389 nfsreq_print((u_char *)rp, length,
390 (u_char *)ip);
391 return;
392 }
393 if (sport == NFS_PORT && direction == REPLY) {
394 nfsreply_print((u_char *)rp, length,
395 (u_char *)ip);
396 return;
397 }
398#ifdef notdef
399 if (dport == SUNRPC_PORT && direction == CALL) {
400 sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
401 return;
402 }
403#endif
404 }
405 if (TTEST(((struct LAP *)cp)->type) &&
406 ((struct LAP *)cp)->type == lapDDP &&
407 (atalk_port(sport) || atalk_port(dport))) {
408 if (vflag)
409 fputs("kip ", stdout);
410 atalk_print(cp, length);
411 return;
412 }
413 }
414 (void)printf("%s.%s > %s.%s:",
415 ipaddr_string(&ip->ip_src), udpport_string(sport),
416 ipaddr_string(&ip->ip_dst), udpport_string(dport));
417
418 if (!qflag) {
419#define ISPORT(p) (dport == (p) || sport == (p))
420 if (ISPORT(NAMESERVER_PORT))
421 ns_print((const u_char *)(up + 1), length);
422 else if (ISPORT(TFTP_PORT))
423 tftp_print((const u_char *)(up + 1), length);
424 else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
425 bootp_print((const u_char *)(up + 1), length,
426 sport, dport);
427 else if (ISPORT(RIP_PORT))
428 rip_print((const u_char *)(up + 1), length);
429 else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
430 snmp_print((const u_char *)(up + 1), length);
431 else if (ISPORT(NTP_PORT))
432 ntp_print((const u_char *)(up + 1), length);
433 else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))
434 krb_print((const void *)(up + 1), length);
435 else if (dport == 3456)
436 vat_print((const void *)(up + 1), length, up);
437 /*
438 * Kludge in test for whiteboard packets.
439 */
440 else if (dport == 4567)
441 wb_print((const void *)(up + 1), length);
442 else
443 (void)printf(" udp %u",
444 (u_int32_t)(ulen - sizeof(*up)));
445#undef ISPORT
446 } else
447 (void)printf(" udp %u", (u_int32_t)(ulen - sizeof(*up)));
448}