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 #ifdef HAVE_CONFIG_H
35 #include "config.h"
36 #endif
37
38 #include <tcpdump-stdinc.h>
39
40 #include <pcap.h>
41 #include <string.h>
42
43 #include "pcap-missing.h"
44
45 struct dlt_choice {
46 const char *name;
47 const char *description;
48 int dlt;
49 };
50
51 #define DLT_CHOICE(code, description) { #code, description, code }
52 #define DLT_CHOICE_SENTINEL { NULL, NULL, 0 }
53
54 static struct dlt_choice dlt_choices[] = {
55 DLT_CHOICE(DLT_NULL, "BSD loopback"),
56 DLT_CHOICE(DLT_EN10MB, "Ethernet"),
57 DLT_CHOICE(DLT_IEEE802, "Token ring"),
58 DLT_CHOICE(DLT_ARCNET, "ARCNET"),
59 DLT_CHOICE(DLT_SLIP, "SLIP"),
60 DLT_CHOICE(DLT_PPP, "PPP"),
61 DLT_CHOICE(DLT_FDDI, "FDDI"),
62 DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 IP-over-ATM"),
63 DLT_CHOICE(DLT_RAW, "Raw IP"),
64 #ifdef DLT_SLIP_BSDOS
65 DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"),
66 #endif
67 #ifdef DLT_PPP_BSDOS
68 DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"),
69 #endif
70 #ifdef DLT_ATM_CLIP
71 DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"),
72 #endif
73 #ifdef DLT_PPP_SERIAL
74 DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"),
75 #endif
76 #ifdef DLT_PPP_ETHER
77 DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"),
78 #endif
79 #ifdef DLT_C_HDLC
80 DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"),
81 #endif
82 #ifdef DLT_IEEE802_11
83 DLT_CHOICE(DLT_IEEE802_11, "802.11"),
84 #endif
85 #ifdef DLT_FRELAY
86 DLT_CHOICE(DLT_FRELAY, "Frame Relay"),
87 #endif
88 #ifdef DLT_LOOP
89 DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"),
90 #endif
91 #ifdef DLT_ENC
92 DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"),
93 #endif
94 #ifdef DLT_LINUX_SLL
95 DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"),
96 #endif
97 #ifdef DLT_LTALK
98 DLT_CHOICE(DLT_LTALK, "Localtalk"),
99 #endif
100 #ifdef DLT_PFLOG
101 DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"),
102 #endif
103 #ifdef DLT_PRISM_HEADER
104 DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"),
105 #endif
106 #ifdef DLT_IP_OVER_FC
107 DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"),
108 #endif
109 #ifdef DLT_SUNATM
110 DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"),
111 #endif
112 #ifdef DLT_IEEE802_11_RADIO
113 DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus radio information header"),
114 #endif
115 #ifdef DLT_ARCNET_LINUX
116 DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"),
117 #endif
118 #ifdef DLT_LINUX_IRDA
119 DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"),
120 #endif
121 #ifdef DLT_LANE8023
122 DLT_CHOICE(DLT_LANE8023, "Linux 802.3 LANE"),
123 #endif
124 #ifdef DLT_CIP
125 DLT_CHOICE(DLT_CIP, "Linux Classical IP-over-ATM"),
126 #endif
127 #ifdef DLT_HDLC
128 DLT_CHOICE(DLT_HDLC, "Cisco HDLC"),
129 #endif
130 DLT_CHOICE_SENTINEL
131 };
132
133 #ifndef HAVE_PCAP_DATALINK_NAME_TO_VAL
134 int
pcap_datalink_name_to_val(const char * name)135 pcap_datalink_name_to_val(const char *name)
136 {
137 int i;
138
139 for (i = 0; dlt_choices[i].name != NULL; i++) {
140 if (strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
141 name) == 0)
142 return (dlt_choices[i].dlt);
143 }
144 return (-1);
145 }
146
147 const char *
pcap_datalink_val_to_name(int dlt)148 pcap_datalink_val_to_name(int dlt)
149 {
150 int i;
151
152 for (i = 0; dlt_choices[i].name != NULL; i++) {
153 if (dlt_choices[i].dlt == dlt)
154 return (dlt_choices[i].name + sizeof("DLT_") - 1);
155 }
156 return (NULL);
157 }
158 #endif
159
160 const char *
pcap_datalink_val_to_description(int dlt)161 pcap_datalink_val_to_description(int dlt)
162 {
163 int i;
164
165 for (i = 0; dlt_choices[i].name != NULL; i++) {
166 if (dlt_choices[i].dlt == dlt)
167 return (dlt_choices[i].description);
168 }
169 return (NULL);
170 }
171