Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / print-sunatm.c
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c8cf0f94
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1/*
2 * Copyright (c) 1997 Yen Yen Lim and North Dakota State University
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Yen Yen Lim and
16 North Dakota State University
17 * 4. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
23 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
24 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32#ifndef lint
33static const char rcsid[] _U_ =
34 "@(#) $Header: /tcpdump/master/tcpdump/print-sunatm.c,v 1.8 2004/03/17 23:24:38 guy Exp $ (LBL)";
35#endif
36
37#ifdef HAVE_CONFIG_H
38#include "config.h"
39#endif
40
41#include <tcpdump-stdinc.h>
42
43struct mbuf;
44struct rtentry;
45
46#include <stdio.h>
47#include <pcap.h>
48
49#include "interface.h"
50#include "extract.h"
51#include "addrtoname.h"
52
53#include "atm.h"
54#include "atmuni31.h"
55
56/* SunATM header for ATM packet */
57#define DIR_POS 0 /* Direction (0x80 = transmit, 0x00 = receive) */
58#define VPI_POS 1 /* VPI */
59#define VCI_POS 2 /* VCI */
60#define PKT_BEGIN_POS 4 /* Start of the ATM packet */
61
62/* Protocol type values in the bottom for bits of the byte at SUNATM_DIR_POS. */
63#define PT_LANE 0x01 /* LANE */
64#define PT_LLC 0x02 /* LLC encapsulation */
65
66/*
67 * This is the top level routine of the printer. 'p' points
68 * to the SunATM pseudo-header for the packet, 'h->ts' is the timestamp,
69 * 'h->len' is the length of the packet off the wire, and 'h->caplen'
70 * is the number of bytes actually captured.
71 */
72u_int
73sunatm_if_print(const struct pcap_pkthdr *h, const u_char *p)
74{
75 u_int caplen = h->caplen;
76 u_int length = h->len;
77 u_short vci;
78 u_char vpi;
79 u_int traftype;
80
81 if (caplen < PKT_BEGIN_POS) {
82 printf("[|atm]");
83 return (caplen);
84 }
85
86 if (eflag) {
87 if (p[DIR_POS] & 0x80)
88 printf("Tx: ");
89 else
90 printf("Rx: ");
91 }
92
93 switch (p[DIR_POS] & 0x0f) {
94
95 case PT_LANE:
96 traftype = ATM_LANE;
97 break;
98
99 case PT_LLC:
100 traftype = ATM_LLC;
101 break;
102
103 default:
104 traftype = ATM_UNKNOWN;
105 break;
106 }
107
108 vci = EXTRACT_16BITS(&p[VCI_POS]);
109 vpi = p[VPI_POS];
110
111 p += PKT_BEGIN_POS;
112 caplen -= PKT_BEGIN_POS;
113 length -= PKT_BEGIN_POS;
114 atm_print(vpi, vci, traftype, p, length, caplen);
115
116 return (PKT_BEGIN_POS);
117}