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 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 * 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 * 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