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 <netdissect-stdinc.h> 39 40 #include <pcap.h> 41 #include <string.h> 42 43 #include "pcap-missing.h" 44 #include "ascii_strcasecmp.h" 45 46 struct dlt_choice { 47 const char *name; 48 const char *description; 49 int dlt; 50 }; 51 52 #define DLT_CHOICE(code, description) { #code, description, code } 53 #define DLT_CHOICE_SENTINEL { NULL, NULL, 0 } 54 55 static struct dlt_choice dlt_choices[] = { 56 DLT_CHOICE(DLT_NULL, "BSD loopback"), 57 DLT_CHOICE(DLT_EN10MB, "Ethernet"), 58 DLT_CHOICE(DLT_IEEE802, "Token ring"), 59 DLT_CHOICE(DLT_ARCNET, "ARCNET"), 60 DLT_CHOICE(DLT_SLIP, "SLIP"), 61 DLT_CHOICE(DLT_PPP, "PPP"), 62 DLT_CHOICE(DLT_FDDI, "FDDI"), 63 DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 IP-over-ATM"), 64 DLT_CHOICE(DLT_RAW, "Raw IP"), 65 #ifdef DLT_SLIP_BSDOS 66 DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"), 67 #endif 68 #ifdef DLT_PPP_BSDOS 69 DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"), 70 #endif 71 #ifdef DLT_ATM_CLIP 72 DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"), 73 #endif 74 #ifdef DLT_PPP_SERIAL 75 DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"), 76 #endif 77 #ifdef DLT_PPP_ETHER 78 DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"), 79 #endif 80 #ifdef DLT_C_HDLC 81 DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"), 82 #endif 83 #ifdef DLT_IEEE802_11 84 DLT_CHOICE(DLT_IEEE802_11, "802.11"), 85 #endif 86 #ifdef DLT_FRELAY 87 DLT_CHOICE(DLT_FRELAY, "Frame Relay"), 88 #endif 89 #ifdef DLT_LOOP 90 DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"), 91 #endif 92 #ifdef DLT_ENC 93 DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"), 94 #endif 95 #ifdef DLT_LINUX_SLL 96 DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"), 97 #endif 98 #ifdef DLT_LTALK 99 DLT_CHOICE(DLT_LTALK, "Localtalk"), 100 #endif 101 #ifdef DLT_PFLOG 102 DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"), 103 #endif 104 #ifdef DLT_PRISM_HEADER 105 DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"), 106 #endif 107 #ifdef DLT_IP_OVER_FC 108 DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"), 109 #endif 110 #ifdef DLT_SUNATM 111 DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"), 112 #endif 113 #ifdef DLT_IEEE802_11_RADIO 114 DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus radio information header"), 115 #endif 116 #ifdef DLT_ARCNET_LINUX 117 DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"), 118 #endif 119 #ifdef DLT_LINUX_IRDA 120 DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"), 121 #endif 122 #ifdef DLT_LANE8023 123 DLT_CHOICE(DLT_LANE8023, "Linux 802.3 LANE"), 124 #endif 125 #ifdef DLT_CIP 126 DLT_CHOICE(DLT_CIP, "Linux Classical IP-over-ATM"), 127 #endif 128 #ifdef DLT_HDLC 129 DLT_CHOICE(DLT_HDLC, "Cisco HDLC"), 130 #endif 131 DLT_CHOICE_SENTINEL 132 }; 133 134 #ifndef HAVE_PCAP_DATALINK_NAME_TO_VAL 135 int 136 pcap_datalink_name_to_val(const char *name) 137 { 138 int i; 139 140 for (i = 0; dlt_choices[i].name != NULL; i++) { 141 if (ascii_strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1, 142 name) == 0) 143 return (dlt_choices[i].dlt); 144 } 145 return (-1); 146 } 147 148 const char * 149 pcap_datalink_val_to_name(int dlt) 150 { 151 int i; 152 153 for (i = 0; dlt_choices[i].name != NULL; i++) { 154 if (dlt_choices[i].dlt == dlt) 155 return (dlt_choices[i].name + sizeof("DLT_") - 1); 156 } 157 return (NULL); 158 } 159 #endif 160 161 const char * 162 pcap_datalink_val_to_description(int dlt) 163 { 164 int i; 165 166 for (i = 0; dlt_choices[i].name != NULL; i++) { 167 if (dlt_choices[i].dlt == dlt) 168 return (dlt_choices[i].description); 169 } 170 return (NULL); 171 } 172