2 * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
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3 * The Regents of the University of California. All rights reserved.
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5 * This code is derived from the Stanford/CMU enet packet filter,
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6 * (net/enet.c) distributed as part of 4.3BSD, and code contributed
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7 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
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8 * Berkeley Laboratory.
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10 * Redistribution and use in source and binary forms, with or without
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11 * modification, are permitted provided that the following conditions
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13 * 1. Redistributions of source code must retain the above copyright
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14 * notice, this list of conditions and the following disclaimer.
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15 * 2. Redistributions in binary form must reproduce the above copyright
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16 * notice, this list of conditions and the following disclaimer in the
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17 * documentation and/or other materials provided with the distribution.
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18 * 3. All advertising materials mentioning features or use of this software
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19 * must display the following acknowledgement:
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20 * This product includes software developed by the University of
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21 * California, Berkeley and its contributors.
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22 * 4. Neither the name of the University nor the names of its contributors
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23 * may be used to endorse or promote products derived from this software
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24 * without specific prior written permission.
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26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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38 * @(#)bpf.h 7.1 (Berkeley) 5/7/91
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40 * @(#) $Header: /tcpdump/master/libpcap/pcap/bpf.h,v 1.19.2.8 2008-09-22 20:16:01 guy Exp $ (LBL)
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44 * This is libpcap's cut-down version of bpf.h; it includes only
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45 * the stuff needed for the code generator and the userland BPF
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46 * interpreter, and the libpcap APIs for setting filters, etc..
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48 * "pcap-bpf.c" will include the native OS version, as it deals with
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49 * the OS's BPF implementation.
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51 * XXX - should this all just be moved to "pcap.h"?
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54 #ifndef BPF_MAJOR_VERSION
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60 /* BSD style release date */
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61 #define BPF_RELEASE 199606
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63 #ifdef MSDOS /* must be 32-bit */
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64 typedef long bpf_int32;
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65 typedef unsigned long bpf_u_int32;
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67 typedef int bpf_int32;
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68 typedef u_int bpf_u_int32;
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72 * Alignment macros. BPF_WORDALIGN rounds up to the next
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73 * even multiple of BPF_ALIGNMENT.
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76 #define BPF_ALIGNMENT sizeof(bpf_int32)
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78 #define BPF_ALIGNMENT sizeof(long)
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80 #define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1))
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82 #define BPF_MAXBUFSIZE 0x8000
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83 #define BPF_MINBUFSIZE 32
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86 * Structure for "pcap_compile()", "pcap_setfilter()", etc..
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88 struct bpf_program {
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90 struct bpf_insn *bf_insns;
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94 * Struct return by BIOCVERSION. This represents the version number of
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95 * the filter language described by the instruction encodings below.
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96 * bpf understands a program iff kernel_major == filter_major &&
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97 * kernel_minor >= filter_minor, that is, if the value returned by the
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98 * running kernel has the same major number and a minor number equal
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99 * equal to or less than the filter being downloaded. Otherwise, the
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100 * results are undefined, meaning an error may be returned or packets
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101 * may be accepted haphazardly.
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102 * It has nothing to do with the source code version.
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104 struct bpf_version {
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108 /* Current version number of filter architecture. */
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109 #define BPF_MAJOR_VERSION 1
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110 #define BPF_MINOR_VERSION 1
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113 * Data-link level type codes.
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115 * Do *NOT* add new values to this list without asking
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116 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run
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117 * the risk of using a value that's already being used for some other
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118 * purpose, and of having tools that read libpcap-format captures not
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119 * being able to handle captures with your new DLT_ value, with no hope
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120 * that they will ever be changed to do so (as that would destroy their
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121 * ability to read captures using that value for that other purpose).
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125 * These are the types that are the same on all platforms, and that
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126 * have been defined by <net/bpf.h> for ages.
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128 #define DLT_NULL 0 /* BSD loopback encapsulation */
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129 #define DLT_EN10MB 1 /* Ethernet (10Mb) */
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130 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */
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131 #define DLT_AX25 3 /* Amateur Radio AX.25 */
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132 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */
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133 #define DLT_CHAOS 5 /* Chaos */
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134 #define DLT_IEEE802 6 /* 802.5 Token Ring */
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135 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */
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136 #define DLT_SLIP 8 /* Serial Line IP */
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137 #define DLT_PPP 9 /* Point-to-point Protocol */
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138 #define DLT_FDDI 10 /* FDDI */
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141 * These are types that are different on some platforms, and that
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142 * have been defined by <net/bpf.h> for ages. We use #ifdefs to
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143 * detect the BSDs that define them differently from the traditional
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144 * libpcap <net/bpf.h>
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146 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS,
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147 * but I don't know what the right #define is for BSD/OS.
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149 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */
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152 #define DLT_RAW 14 /* raw IP */
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154 #define DLT_RAW 12 /* raw IP */
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158 * Given that the only OS that currently generates BSD/OS SLIP or PPP
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159 * is, well, BSD/OS, arguably everybody should have chosen its values
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160 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they
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161 * didn't. So it goes.
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163 #if defined(__NetBSD__) || defined(__FreeBSD__)
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164 #ifndef DLT_SLIP_BSDOS
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165 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */
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166 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */
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169 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */
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170 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */
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174 * 17 is used for DLT_OLD_PFLOG in OpenBSD;
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175 * OBSOLETE: DLT_PFLOG is 117 in OpenBSD now as well. See below.
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176 * 18 is used for DLT_PFSYNC in OpenBSD; don't use it for anything else.
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179 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */
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182 * Apparently Redback uses this for its SmartEdge 400/800. I hope
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183 * nobody else decided to use it, too.
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185 #define DLT_REDBACK_SMARTEDGE 32
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188 * These values are defined by NetBSD; other platforms should refrain from
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189 * using them for other purposes, so that NetBSD savefiles with link
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190 * types of 50 or 51 can be read as this type on all platforms.
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192 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */
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193 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */
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196 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses
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197 * a link-layer type of 99 for the tcpdump it supplies. The link-layer
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198 * header has 6 bytes of unknown data, something that appears to be an
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199 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture
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202 #define DLT_SYMANTEC_FIREWALL 99
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205 * Values between 100 and 103 are used in capture file headers as
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206 * link-layer types corresponding to DLT_ types that differ
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207 * between platforms; don't use those values for new DLT_ new types.
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211 * This value was defined by libpcap 0.5; platforms that have defined
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212 * it with a different value should define it here with that value -
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213 * a link type of 104 in a save file will be mapped to DLT_C_HDLC,
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214 * whatever value that happens to be, so programs will correctly
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215 * handle files with that link type regardless of the value of
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218 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source
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219 * compatibility with programs written for BSD/OS.
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221 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
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222 * for source compatibility with programs written for libpcap 0.5.
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224 #define DLT_C_HDLC 104 /* Cisco HDLC */
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225 #define DLT_CHDLC DLT_C_HDLC
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227 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */
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230 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW,
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231 * except when it isn't. (I.e., sometimes it's just raw IP, and
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232 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL,
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233 * so that we don't have to worry about the link-layer header.)
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237 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides
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238 * with other values.
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239 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header
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242 #define DLT_FRELAY 107
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245 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
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246 * that the AF_ type in the link-layer header is in network byte order.
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248 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so
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249 * we don't use 12 for it in OSes other than OpenBSD.
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252 #define DLT_LOOP 12
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254 #define DLT_LOOP 108
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258 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
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259 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other
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265 #define DLT_ENC 109
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269 * Values between 110 and 112 are reserved for use in capture file headers
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270 * as link-layer types corresponding to DLT_ types that might differ
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271 * between platforms; don't use those values for new DLT_ types
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272 * other than the corresponding DLT_ types.
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276 * This is for Linux cooked sockets.
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278 #define DLT_LINUX_SLL 113
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281 * Apple LocalTalk hardware.
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283 #define DLT_LTALK 114
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288 #define DLT_ECONET 115
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291 * Reserved for use with OpenBSD ipfilter.
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293 #define DLT_IPFILTER 116
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296 * OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD, but that's DLT_LANE8023
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297 * in SuSE 6.3, so we can't use 17 for it in capture-file headers.
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299 * XXX: is there a conflict with DLT_PFSYNC 18 as well?
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302 #define DLT_OLD_PFLOG 17
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303 #define DLT_PFSYNC 18
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305 #define DLT_PFLOG 117
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308 * Registered for Cisco-internal use.
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310 #define DLT_CISCO_IOS 118
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313 * For 802.11 cards using the Prism II chips, with a link-layer
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314 * header including Prism monitor mode information plus an 802.11
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317 #define DLT_PRISM_HEADER 119
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320 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header
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321 * (see Doug Ambrisko's FreeBSD patches).
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323 #define DLT_AIRONET_HEADER 120
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326 * Reserved for Siemens HiPath HDLC.
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328 #define DLT_HHDLC 121
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331 * This is for RFC 2625 IP-over-Fibre Channel.
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333 * This is not for use with raw Fibre Channel, where the link-layer
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334 * header starts with a Fibre Channel frame header; it's for IP-over-FC,
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335 * where the link-layer header starts with an RFC 2625 Network_Header
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338 #define DLT_IP_OVER_FC 122
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341 * This is for Full Frontal ATM on Solaris with SunATM, with a
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342 * pseudo-header followed by an AALn PDU.
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344 * There may be other forms of Full Frontal ATM on other OSes,
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345 * with different pseudo-headers.
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347 * If ATM software returns a pseudo-header with VPI/VCI information
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348 * (and, ideally, packet type information, e.g. signalling, ILMI,
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349 * LANE, LLC-multiplexed traffic, etc.), it should not use
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350 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump
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351 * and the like don't have to infer the presence or absence of a
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352 * pseudo-header and the form of the pseudo-header.
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354 #define DLT_SUNATM 123 /* Solaris+SunATM */
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357 * Reserved as per request from Kent Dahlgren <kent@praesum.com>
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360 #define DLT_RIO 124 /* RapidIO */
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361 #define DLT_PCI_EXP 125 /* PCI Express */
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362 #define DLT_AURORA 126 /* Xilinx Aurora link layer */
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365 * Header for 802.11 plus a number of bits of link-layer information
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366 * including radio information, used by some recent BSD drivers as
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367 * well as the madwifi Atheros driver for Linux.
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369 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */
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372 * Reserved for the TZSP encapsulation, as per request from
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373 * Chris Waters <chris.waters@networkchemistry.com>
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374 * TZSP is a generic encapsulation for any other link type,
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375 * which includes a means to include meta-information
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376 * with the packet, e.g. signal strength and channel
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377 * for 802.11 packets.
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379 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */
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382 * BSD's ARCNET headers have the source host, destination host,
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383 * and type at the beginning of the packet; that's what's handed
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384 * up to userland via BPF.
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386 * Linux's ARCNET headers, however, have a 2-byte offset field
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387 * between the host IDs and the type; that's what's handed up
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388 * to userland via PF_PACKET sockets.
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390 * We therefore have to have separate DLT_ values for them.
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392 #define DLT_ARCNET_LINUX 129 /* ARCNET */
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395 * Juniper-private data link types, as per request from
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396 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
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397 * for passing on chassis-internal metainformation such as
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398 * QOS profiles, etc..
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400 #define DLT_JUNIPER_MLPPP 130
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401 #define DLT_JUNIPER_MLFR 131
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402 #define DLT_JUNIPER_ES 132
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403 #define DLT_JUNIPER_GGSN 133
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404 #define DLT_JUNIPER_MFR 134
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405 #define DLT_JUNIPER_ATM2 135
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406 #define DLT_JUNIPER_SERVICES 136
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407 #define DLT_JUNIPER_ATM1 137
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410 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund
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411 * <dieter@apple.com>. The header that's presented is an Ethernet-like
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414 * #define FIREWIRE_EUI64_LEN 8
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415 * struct firewire_header {
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416 * u_char firewire_dhost[FIREWIRE_EUI64_LEN];
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417 * u_char firewire_shost[FIREWIRE_EUI64_LEN];
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418 * u_short firewire_type;
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421 * with "firewire_type" being an Ethernet type value, rather than,
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422 * for example, raw GASP frames being handed up.
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424 #define DLT_APPLE_IP_OVER_IEEE1394 138
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427 * Various SS7 encapsulations, as per a request from Jeff Morriss
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428 * <jeff.morriss[AT]ulticom.com> and subsequent discussions.
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430 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */
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431 #define DLT_MTP2 140 /* MTP2, without pseudo-header */
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432 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */
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433 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */
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436 * DOCSIS MAC frames.
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438 #define DLT_DOCSIS 143
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441 * Linux-IrDA packets. Protocol defined at http://www.irda.org.
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442 * Those packets include IrLAP headers and above (IrLMP...), but
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443 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy
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444 * framing can be handled by the hardware and depend on the bitrate.
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445 * This is exactly the format you would get capturing on a Linux-IrDA
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446 * interface (irdaX), but not on a raw serial port.
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447 * Note the capture is done in "Linux-cooked" mode, so each packet include
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448 * a fake packet header (struct sll_header). This is because IrDA packet
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449 * decoding is dependant on the direction of the packet (incomming or
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451 * When/if other platform implement IrDA capture, we may revisit the
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452 * issue and define a real DLT_IRDA...
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455 #define DLT_LINUX_IRDA 144
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458 * Reserved for IBM SP switch and IBM Next Federation switch.
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460 #define DLT_IBM_SP 145
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461 #define DLT_IBM_SN 146
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464 * Reserved for private use. If you have some link-layer header type
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465 * that you want to use within your organization, with the capture files
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466 * using that link-layer header type not ever be sent outside your
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467 * organization, you can use these values.
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469 * No libpcap release will use these for any purpose, nor will any
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470 * tcpdump release use them, either.
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472 * Do *NOT* use these in capture files that you expect anybody not using
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473 * your private versions of capture-file-reading tools to read; in
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474 * particular, do *NOT* use them in products, otherwise you may find that
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475 * people won't be able to use tcpdump, or snort, or Ethereal, or... to
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476 * read capture files from your firewall/intrusion detection/traffic
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477 * monitoring/etc. appliance, or whatever product uses that DLT_ value,
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478 * and you may also find that the developers of those applications will
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479 * not accept patches to let them read those files.
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481 * Also, do not use them if somebody might send you a capture using them
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482 * for *their* private type and tools using them for *your* private type
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483 * would have to read them.
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485 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value,
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486 * as per the comment above, and use the type you're given.
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488 #define DLT_USER0 147
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489 #define DLT_USER1 148
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490 #define DLT_USER2 149
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491 #define DLT_USER3 150
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492 #define DLT_USER4 151
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493 #define DLT_USER5 152
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494 #define DLT_USER6 153
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495 #define DLT_USER7 154
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496 #define DLT_USER8 155
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497 #define DLT_USER9 156
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498 #define DLT_USER10 157
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499 #define DLT_USER11 158
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500 #define DLT_USER12 159
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501 #define DLT_USER13 160
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502 #define DLT_USER14 161
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503 #define DLT_USER15 162
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506 * For future use with 802.11 captures - defined by AbsoluteValue
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507 * Systems to store a number of bits of link-layer information
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508 * including radio information:
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510 * http://www.shaftnet.org/~pizza/software/capturefrm.txt
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512 * but it might be used by some non-AVS drivers now or in the
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515 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */
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518 * Juniper-private data link type, as per request from
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519 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
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520 * for passing on chassis-internal metainformation such as
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521 * QOS profiles, etc..
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523 #define DLT_JUNIPER_MONITOR 164
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526 * Reserved for BACnet MS/TP.
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528 #define DLT_BACNET_MS_TP 165
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531 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>.
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533 * This is used in some OSes to allow a kernel socket filter to distinguish
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534 * between incoming and outgoing packets, on a socket intended to
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535 * supply pppd with outgoing packets so it can do dial-on-demand and
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536 * hangup-on-lack-of-demand; incoming packets are filtered out so they
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537 * don't cause pppd to hold the connection up (you don't want random
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538 * input packets such as port scans, packets from old lost connections,
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539 * etc. to force the connection to stay up).
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541 * The first byte of the PPP header (0xff03) is modified to accomodate
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542 * the direction - 0x00 = IN, 0x01 = OUT.
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544 #define DLT_PPP_PPPD 166
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547 * Names for backwards compatibility with older versions of some PPP
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548 * software; new software should use DLT_PPP_PPPD.
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550 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD
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551 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD
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554 * Juniper-private data link type, as per request from
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555 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
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556 * for passing on chassis-internal metainformation such as
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557 * QOS profiles, cookies, etc..
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559 #define DLT_JUNIPER_PPPOE 167
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560 #define DLT_JUNIPER_PPPOE_ATM 168
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562 #define DLT_GPRS_LLC 169 /* GPRS LLC */
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563 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */
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564 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */
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567 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line
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568 * monitoring equipment.
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570 #define DLT_GCOM_T1E1 172
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571 #define DLT_GCOM_SERIAL 173
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574 * Juniper-private data link type, as per request from
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575 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used
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576 * for internal communication to Physical Interface Cards (PIC)
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578 #define DLT_JUNIPER_PIC_PEER 174
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581 * Link types requested by Gregor Maier <gregor@endace.com> of Endace
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582 * Measurement Systems. They add an ERF header (see
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583 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of
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584 * the link-layer header.
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586 #define DLT_ERF_ETH 175 /* Ethernet */
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587 #define DLT_ERF_POS 176 /* Packet-over-SONET */
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590 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD
\r
591 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header
\r
592 * includes additional information before the LAPD header, so it's
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593 * not necessarily a generic LAPD header.
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595 #define DLT_LINUX_LAPD 177
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598 * Juniper-private data link type, as per request from
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599 * Hannes Gredler <hannes@juniper.net>.
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600 * The DLT_ are used for prepending meta-information
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601 * like interface index, interface name
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602 * before standard Ethernet, PPP, Frelay & C-HDLC Frames
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604 #define DLT_JUNIPER_ETHER 178
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605 #define DLT_JUNIPER_PPP 179
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606 #define DLT_JUNIPER_FRELAY 180
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607 #define DLT_JUNIPER_CHDLC 181
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610 * Multi Link Frame Relay (FRF.16)
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612 #define DLT_MFR 182
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615 * Juniper-private data link type, as per request from
\r
616 * Hannes Gredler <hannes@juniper.net>.
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617 * The DLT_ is used for internal communication with a
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618 * voice Adapter Card (PIC)
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620 #define DLT_JUNIPER_VP 183
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623 * Arinc 429 frames.
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624 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
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625 * Every frame contains a 32bit A429 label.
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626 * More documentation on Arinc 429 can be found at
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627 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
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629 #define DLT_A429 184
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632 * Arinc 653 Interpartition Communication messages.
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633 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
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634 * Please refer to the A653-1 standard for more information.
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636 #define DLT_A653_ICM 185
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639 * USB packets, beginning with a USB setup header; requested by
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640 * Paolo Abeni <paolo.abeni@email.it>.
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642 #define DLT_USB 186
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645 * Bluetooth HCI UART transport layer (part H:4); requested by
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648 #define DLT_BLUETOOTH_HCI_H4 187
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651 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz
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652 * <cruz_petagay@bah.com>.
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654 #define DLT_IEEE802_16_MAC_CPS 188
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657 * USB packets, beginning with a Linux USB header; requested by
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658 * Paolo Abeni <paolo.abeni@email.it>.
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660 #define DLT_USB_LINUX 189
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663 * Controller Area Network (CAN) v. 2.0B packets.
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664 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
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665 * Used to dump CAN packets coming from a CAN Vector board.
\r
666 * More documentation on the CAN v2.0B frames can be found at
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667 * http://www.can-cia.org/downloads/?269
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669 #define DLT_CAN20B 190
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672 * IEEE 802.15.4, with address fields padded, as is done by Linux
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673 * drivers; requested by Juergen Schimmer.
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675 #define DLT_IEEE802_15_4_LINUX 191
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678 * Per Packet Information encapsulated packets.
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679 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
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681 #define DLT_PPI 192
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684 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header;
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685 * requested by Charles Clancy.
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687 #define DLT_IEEE802_16_MAC_CPS_RADIO 193
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690 * Juniper-private data link type, as per request from
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691 * Hannes Gredler <hannes@juniper.net>.
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692 * The DLT_ is used for internal communication with a
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693 * integrated service module (ISM).
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695 #define DLT_JUNIPER_ISM 194
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698 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
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699 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>.
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701 #define DLT_IEEE802_15_4 195
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704 * Various link-layer types, with a pseudo-header, for SITA
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705 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com).
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707 #define DLT_SITA 196
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710 * Various link-layer types, with a pseudo-header, for Endace DAG cards;
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711 * encapsulates Endace ERF records. Requested by Stephen Donnelly
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712 * <stephen@endace.com>.
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714 #define DLT_ERF 197
\r
717 * Special header prepended to Ethernet packets when capturing from a
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718 * u10 Networks board. Requested by Phil Mulholland
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719 * <phil@u10networks.com>.
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721 #define DLT_RAIF1 198
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724 * IPMB packet for IPMI, beginning with the I2C slave address, followed
\r
725 * by the netFn and LUN, etc.. Requested by Chanthy Toeung
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726 * <chanthy.toeung@ca.kontron.com>.
\r
728 #define DLT_IPMB 199
\r
731 * Juniper-private data link type, as per request from
\r
732 * Hannes Gredler <hannes@juniper.net>.
\r
733 * The DLT_ is used for capturing data on a secure tunnel interface.
\r
735 #define DLT_JUNIPER_ST 200
\r
738 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header
\r
739 * that includes direction information; requested by Paolo Abeni.
\r
741 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201
\r
744 * AX.25 packet with a 1-byte KISS header; see
\r
746 * http://www.ax25.net/kiss.htm
\r
748 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>.
\r
750 #define DLT_AX25_KISS 202
\r
753 * LAPD packets from an ISDN channel, starting with the address field,
\r
754 * with no pseudo-header.
\r
755 * Requested by Varuna De Silva <varunax@gmail.com>.
\r
757 #define DLT_LAPD 203
\r
760 * Variants of various link-layer headers, with a one-byte direction
\r
761 * pseudo-header prepended - zero means "received by this host",
\r
762 * non-zero (any non-zero value) means "sent by this host" - as per
\r
763 * Will Barker <w.barker@zen.co.uk>.
\r
765 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */
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766 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */
\r
767 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */
\r
768 #define DLT_LAPB_WITH_DIR 207 /* LAPB */
\r
771 * 208 is reserved for an as-yet-unspecified proprietary link-layer
\r
772 * type, as requested by Will Barker.
\r
776 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman
\r
777 * <avn@pigeonpoint.com>.
\r
779 #define DLT_IPMB_LINUX 209
\r
782 * FlexRay automotive bus - http://www.flexray.com/ - as requested
\r
783 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
\r
785 #define DLT_FLEXRAY 210
\r
788 * Media Oriented Systems Transport (MOST) bus for multimedia
\r
789 * transport - http://www.mostcooperation.com/ - as requested
\r
790 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
\r
792 #define DLT_MOST 211
\r
795 * Local Interconnect Network (LIN) bus for vehicle networks -
\r
796 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber
\r
797 * <hannes.kaelber@x2e.de>.
\r
799 #define DLT_LIN 212
\r
802 * X2E-private data link type used for serial line capture,
\r
803 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
\r
805 #define DLT_X2E_SERIAL 213
\r
808 * X2E-private data link type used for the Xoraya data logger
\r
809 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
\r
811 #define DLT_X2E_XORAYA 214
\r
814 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
\r
815 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets
\r
816 * of 0 as preamble, one octet of SFD, one octet of frame length+
\r
817 * reserved bit, and then the MAC-layer data, starting with the
\r
818 * frame control field).
\r
820 * Requested by Max Filippov <jcmvbkbc@gmail.com>.
\r
822 #define DLT_IEEE802_15_4_NONASK_PHY 215
\r
826 * DLT and savefile link type values are split into a class and
\r
827 * a member of that class. A class value of 0 indicates a regular
\r
828 * DLT_/LINKTYPE_ value.
\r
830 #define DLT_CLASS(x) ((x) & 0x03ff0000)
\r
833 * NetBSD-specific generic "raw" link type. The class value indicates
\r
834 * that this is the generic raw type, and the lower 16 bits are the
\r
835 * address family we're dealing with. Those values are NetBSD-specific;
\r
836 * do not assume that they correspond to AF_ values for your operating
\r
839 #define DLT_CLASS_NETBSD_RAWAF 0x02240000
\r
840 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af))
\r
841 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff)
\r
842 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF)
\r
846 * The instruction encodings.
\r
848 /* instruction classes */
\r
849 #define BPF_CLASS(code) ((code) & 0x07)
\r
850 #define BPF_LD 0x00
\r
851 #define BPF_LDX 0x01
\r
852 #define BPF_ST 0x02
\r
853 #define BPF_STX 0x03
\r
854 #define BPF_ALU 0x04
\r
855 #define BPF_JMP 0x05
\r
856 #define BPF_RET 0x06
\r
857 #define BPF_MISC 0x07
\r
859 /* ld/ldx fields */
\r
860 #define BPF_SIZE(code) ((code) & 0x18)
\r
864 #define BPF_MODE(code) ((code) & 0xe0)
\r
865 #define BPF_IMM 0x00
\r
866 #define BPF_ABS 0x20
\r
867 #define BPF_IND 0x40
\r
868 #define BPF_MEM 0x60
\r
869 #define BPF_LEN 0x80
\r
870 #define BPF_MSH 0xa0
\r
872 /* alu/jmp fields */
\r
873 #define BPF_OP(code) ((code) & 0xf0)
\r
874 #define BPF_ADD 0x00
\r
875 #define BPF_SUB 0x10
\r
876 #define BPF_MUL 0x20
\r
877 #define BPF_DIV 0x30
\r
878 #define BPF_OR 0x40
\r
879 #define BPF_AND 0x50
\r
880 #define BPF_LSH 0x60
\r
881 #define BPF_RSH 0x70
\r
882 #define BPF_NEG 0x80
\r
883 #define BPF_JA 0x00
\r
884 #define BPF_JEQ 0x10
\r
885 #define BPF_JGT 0x20
\r
886 #define BPF_JGE 0x30
\r
887 #define BPF_JSET 0x40
\r
888 #define BPF_SRC(code) ((code) & 0x08)
\r
892 /* ret - BPF_K and BPF_X also apply */
\r
893 #define BPF_RVAL(code) ((code) & 0x18)
\r
897 #define BPF_MISCOP(code) ((code) & 0xf8)
\r
898 #define BPF_TAX 0x00
\r
899 #define BPF_TXA 0x80
\r
902 * The instruction data structure.
\r
912 * Macros for insn array initializers.
\r
914 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k }
\r
915 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k }
\r
917 #if __STDC__ || defined(__cplusplus)
\r
918 extern int bpf_validate(const struct bpf_insn *, int);
\r
919 extern u_int bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int);
\r
921 extern int bpf_validate();
\r
922 extern u_int bpf_filter();
\r
926 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST).
\r
928 #define BPF_MEMWORDS 16
\r
projects / freertos / blob