1/*
2 * Copyright (c) 1993, 1994, 1995, 1996, 1997, 1998
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 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 the Computer Systems
16 *	Engineering Group at Lawrence Berkeley Laboratory.
17 * 4. Neither the name of the University nor of the Laboratory may be used
18 *    to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static const char rcsid[] _U_ =
36    "@(#) $Header: /tcpdump/master/tcpdump/missing/dlnames.c,v 1.5 2003-11-18 23:09:43 guy Exp $ (LBL)";
37#endif
38
39#ifdef HAVE_CONFIG_H
40#include "config.h"
41#endif
42
43#include <tcpdump-stdinc.h>
44
45#include <pcap.h>
46#include <string.h>
47
48#include "pcap-missing.h"
49
50struct dlt_choice {
51	const char *name;
52	const char *description;
53	int	dlt;
54};
55
56#define DLT_CHOICE(code, description) { #code, description, code }
57#define DLT_CHOICE_SENTINEL { NULL, NULL, 0 }
58
59static struct dlt_choice dlt_choices[] = {
60	DLT_CHOICE(DLT_NULL, "BSD loopback"),
61	DLT_CHOICE(DLT_EN10MB, "Ethernet"),
62	DLT_CHOICE(DLT_IEEE802, "Token ring"),
63	DLT_CHOICE(DLT_ARCNET, "ARCNET"),
64	DLT_CHOICE(DLT_SLIP, "SLIP"),
65	DLT_CHOICE(DLT_PPP, "PPP"),
66	DLT_CHOICE(DLT_FDDI, "FDDI"),
67	DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 IP-over-ATM"),
68	DLT_CHOICE(DLT_RAW, "Raw IP"),
69#ifdef DLT_SLIP_BSDOS
70	DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"),
71#endif
72#ifdef DLT_PPP_BSDOS
73	DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"),
74#endif
75#ifdef DLT_ATM_CLIP
76	DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"),
77#endif
78#ifdef DLT_PPP_SERIAL
79	DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"),
80#endif
81#ifdef DLT_PPP_ETHER
82	DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"),
83#endif
84#ifdef DLT_C_HDLC
85	DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"),
86#endif
87#ifdef DLT_IEEE802_11
88	DLT_CHOICE(DLT_IEEE802_11, "802.11"),
89#endif
90#ifdef DLT_FRELAY
91	DLT_CHOICE(DLT_FRELAY, "Frame Relay"),
92#endif
93#ifdef DLT_LOOP
94	DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"),
95#endif
96#ifdef DLT_ENC
97	DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"),
98#endif
99#ifdef DLT_LINUX_SLL
100	DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"),
101#endif
102#ifdef DLT_LTALK
103	DLT_CHOICE(DLT_LTALK, "Localtalk"),
104#endif
105#ifdef DLT_PFLOG
106	DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"),
107#endif
108#ifdef DLT_PRISM_HEADER
109	DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"),
110#endif
111#ifdef DLT_IP_OVER_FC
112	DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"),
113#endif
114#ifdef DLT_SUNATM
115	DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"),
116#endif
117#ifdef DLT_IEEE802_11_RADIO
118	DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus radio information header"),
119#endif
120#ifdef DLT_ARCNET_LINUX
121	DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"),
122#endif
123#ifdef DLT_LINUX_IRDA
124	DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"),
125#endif
126#ifdef DLT_LANE8023
127	DLT_CHOICE(DLT_LANE8023, "Linux 802.3 LANE"),
128#endif
129#ifdef DLT_CIP
130	DLT_CHOICE(DLT_CIP, "Linux Classical IP-over-ATM"),
131#endif
132#ifdef DLT_HDLC
133	DLT_CHOICE(DLT_HDLC, "Cisco HDLC"),
134#endif
135	DLT_CHOICE_SENTINEL
136};
137
138#ifndef HAVE_PCAP_DATALINK_NAME_TO_VAL
139int
140pcap_datalink_name_to_val(const char *name)
141{
142	int i;
143
144	for (i = 0; dlt_choices[i].name != NULL; i++) {
145		if (strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
146		    name) == 0)
147			return (dlt_choices[i].dlt);
148	}
149	return (-1);
150}
151
152const char *
153pcap_datalink_val_to_name(int dlt)
154{
155	int i;
156
157	for (i = 0; dlt_choices[i].name != NULL; i++) {
158		if (dlt_choices[i].dlt == dlt)
159			return (dlt_choices[i].name + sizeof("DLT_") - 1);
160	}
161	return (NULL);
162}
163#endif
164
165const char *
166pcap_datalink_val_to_description(int dlt)
167{
168	int i;
169
170	for (i = 0; dlt_choices[i].name != NULL; i++) {
171		if (dlt_choices[i].dlt == dlt)
172			return (dlt_choices[i].description);
173	}
174	return (NULL);
175}
176