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freebsd-nq/sys/net/dlt.h
Hans Petter Selasky 5fd1ea0810 Re-apply r190640. 
- Restore local change to include <net/bpf.h> inside pcap.h.
This fixes ports build problems.
- Update local copy of dlt.h with new DLT types.
- Revert no longer needed <net/bpf.h> includes which were added
as part of r334277.

Suggested by:	antoine@, delphij@, np@
MFC after:	3 weeks
Sponsored by:	Mellanox Technologies
2018-05-31 09:11:21 +00:00

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/*-
* Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
* The Regents of the University of California. All rights reserved.
*
* This code is derived from the Stanford/CMU enet packet filter,
* (net/enet.c) distributed as part of 4.3BSD, and code contributed
* to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
* Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)bpf.h 7.1 (Berkeley) 5/7/91
*
* $FreeBSD$
*/
#ifndef _NET_DLT_H_
#define _NET_DLT_H_
/*
* Link-layer header type codes.
*
* Do *NOT* add new values to this list without asking
* "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run
* the risk of using a value that's already being used for some other
* purpose, and of having tools that read libpcap-format captures not
* being able to handle captures with your new DLT_ value, with no hope
* that they will ever be changed to do so (as that would destroy their
* ability to read captures using that value for that other purpose).
*
* See
*
* http://www.tcpdump.org/linktypes.html
*
* for detailed descriptions of some of these link-layer header types.
*/
/*
* These are the types that are the same on all platforms, and that
* have been defined by <net/bpf.h> for ages.
*/
#define DLT_NULL 0 /* BSD loopback encapsulation */
#define DLT_EN10MB 1 /* Ethernet (10Mb) */
#define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */
#define DLT_AX25 3 /* Amateur Radio AX.25 */
#define DLT_PRONET 4 /* Proteon ProNET Token Ring */
#define DLT_CHAOS 5 /* Chaos */
#define DLT_IEEE802 6 /* 802.5 Token Ring */
#define DLT_ARCNET 7 /* ARCNET, with BSD-style header */
#define DLT_SLIP 8 /* Serial Line IP */
#define DLT_PPP 9 /* Point-to-point Protocol */
#define DLT_FDDI 10 /* FDDI */
/*
* These are types that are different on some platforms, and that
* have been defined by <net/bpf.h> for ages. We use #ifdefs to
* detect the BSDs that define them differently from the traditional
* libpcap <net/bpf.h>
*
* XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS,
* but I don't know what the right #define is for BSD/OS.
*/
#define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */
#ifdef __OpenBSD__
#define DLT_RAW 14 /* raw IP */
#else
#define DLT_RAW 12 /* raw IP */
#endif
/*
* Given that the only OS that currently generates BSD/OS SLIP or PPP
* is, well, BSD/OS, arguably everybody should have chosen its values
* for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they
* didn't. So it goes.
*/
#if defined(__NetBSD__) || defined(__FreeBSD__)
#ifndef DLT_SLIP_BSDOS
#define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */
#define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */
#endif
#else
#define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */
#define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */
#endif
/*
* 17 was used for DLT_PFLOG in OpenBSD; it no longer is.
*
* It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG
* as 117 so that pflog captures would use a link-layer header type
* value that didn't collide with any other values. On all
* platforms other than OpenBSD, we defined DLT_PFLOG as 117,
* and we mapped between LINKTYPE_PFLOG and DLT_PFLOG.
*
* OpenBSD eventually switched to using 117 for DLT_PFLOG as well.
*
* Don't use 17 for anything else.
*/
/*
* 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and
* macOS; don't use it for anything else. (FreeBSD uses 121, which
* collides with DLT_HHDLC, even though it doesn't use 18 for
* anything and doesn't appear to have ever used it for anything.)
*
* We define it as 18 on those platforms; it is, unfortunately, used
* for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC
* in general. As the packet format for it, like that for
* DLT_PFLOG, is not only OS-dependent but OS-version-dependent,
* we don't support printing it in tcpdump except on OSes that
* have the relevant header files, so it's not that useful on
* other platforms.
*/
#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__)
#define DLT_PFSYNC 18
#endif
#define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */
/*
* Apparently Redback uses this for its SmartEdge 400/800. I hope
* nobody else decided to use it, too.
*/
#define DLT_REDBACK_SMARTEDGE 32
/*
* These values are defined by NetBSD; other platforms should refrain from
* using them for other purposes, so that NetBSD savefiles with link
* types of 50 or 51 can be read as this type on all platforms.
*/
#define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */
#define DLT_PPP_ETHER 51 /* PPP over Ethernet */
/*
* The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses
* a link-layer type of 99 for the tcpdump it supplies. The link-layer
* header has 6 bytes of unknown data, something that appears to be an
* Ethernet type, and 36 bytes that appear to be 0 in at least one capture
* I've seen.
*/
#define DLT_SYMANTEC_FIREWALL 99
/*
* Values between 100 and 103 are used in capture file headers as
* link-layer header type LINKTYPE_ values corresponding to DLT_ types
* that differ between platforms; don't use those values for new DLT_
* new types.
*/
/*
* Values starting with 104 are used for newly-assigned link-layer
* header type values; for those link-layer header types, the DLT_
* value returned by pcap_datalink() and passed to pcap_open_dead(),
* and the LINKTYPE_ value that appears in capture files, are the
* same.
*
* DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is
* the highest such value.
*/
#define DLT_MATCHING_MIN 104
/*
* This value was defined by libpcap 0.5; platforms that have defined
* it with a different value should define it here with that value -
* a link type of 104 in a save file will be mapped to DLT_C_HDLC,
* whatever value that happens to be, so programs will correctly
* handle files with that link type regardless of the value of
* DLT_C_HDLC.
*
* The name DLT_C_HDLC was used by BSD/OS; we use that name for source
* compatibility with programs written for BSD/OS.
*
* libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
* for source compatibility with programs written for libpcap 0.5.
*/
#define DLT_C_HDLC 104 /* Cisco HDLC */
#define DLT_CHDLC DLT_C_HDLC
#define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */
/*
* 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW,
* except when it isn't. (I.e., sometimes it's just raw IP, and
* sometimes it isn't.) We currently handle it as DLT_LINUX_SLL,
* so that we don't have to worry about the link-layer header.)
*/
/*
* Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides
* with other values.
* DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header
* (DLCI, etc.).
*/
#define DLT_FRELAY 107
/*
* OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
* that the AF_ type in the link-layer header is in network byte order.
*
* DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so
* we don't use 12 for it in OSes other than OpenBSD.
*/
#ifdef __OpenBSD__
#define DLT_LOOP 12
#else
#define DLT_LOOP 108
#endif
/*
* Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
* DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other
* than OpenBSD.
*/
#ifdef __OpenBSD__
#define DLT_ENC 13
#else
#define DLT_ENC 109
#endif
/*
* Values between 110 and 112 are reserved for use in capture file headers
* as link-layer types corresponding to DLT_ types that might differ
* between platforms; don't use those values for new DLT_ types
* other than the corresponding DLT_ types.
*/
/*
* This is for Linux cooked sockets.
*/
#define DLT_LINUX_SLL 113
/*
* Apple LocalTalk hardware.
*/
#define DLT_LTALK 114
/*
* Acorn Econet.
*/
#define DLT_ECONET 115
/*
* Reserved for use with OpenBSD ipfilter.
*/
#define DLT_IPFILTER 116
/*
* OpenBSD DLT_PFLOG.
*/
#define DLT_PFLOG 117
/*
* Registered for Cisco-internal use.
*/
#define DLT_CISCO_IOS 118
/*
* For 802.11 cards using the Prism II chips, with a link-layer
* header including Prism monitor mode information plus an 802.11
* header.
*/
#define DLT_PRISM_HEADER 119
/*
* Reserved for Aironet 802.11 cards, with an Aironet link-layer header
* (see Doug Ambrisko's FreeBSD patches).
*/
#define DLT_AIRONET_HEADER 120
/*
* Sigh.
*
* 121 was reserved for Siemens HiPath HDLC on 2002-01-25, as
* requested by Tomas Kukosa.
*
* On 2004-02-25, a FreeBSD checkin to sys/net/bpf.h was made that
* assigned 121 as DLT_PFSYNC. In current versions, its libpcap
* does DLT_ <-> LINKTYPE_ mapping, mapping DLT_PFSYNC to a
* LINKTYPE_PFSYNC value of 246, so it should write out DLT_PFSYNC
* dump files with 246 as the link-layer header type. (Earlier
* versions might not have done mapping, in which case they would
* have written them out with a link-layer header type of 121.)
*
* OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC;
* its libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would
* write out DLT_PFSYNC dump files with use 18 as the link-layer
* header type.
*
* NetBSD, DragonFly BSD, and Darwin also use 18 for DLT_PFSYNC; in
* current versions, their libpcaps do DLT_ <-> LINKTYPE_ mapping,
* mapping DLT_PFSYNC to a LINKTYPE_PFSYNC value of 246, so they
* should write out DLT_PFSYNC dump files with 246 as the link-layer
* header type. (Earlier versions might not have done mapping,
* in which case they'd work the same way OpenBSD does, writing
* them out with a link-layer header type of 18.)
*
* We'll define DLT_PFSYNC as:
*
* 18 on NetBSD, OpenBSD, DragonFly BSD, and Darwin;
*
* 121 on FreeBSD;
*
* 246 everywhere else.
*
* We'll define DLT_HHDLC as 121 on everything except for FreeBSD;
* anybody who wants to compile, on FreeBSD, code that uses DLT_HHDLC
* is out of luck.
*
* We'll define LINKTYPE_PFSYNC as 246 on *all* platforms, so that
* savefiles written using *this* code won't use 18 or 121 for PFSYNC,
* they'll all use 246.
*
* Code that uses pcap_datalink() to determine the link-layer header
* type of a savefile won't, when built and run on FreeBSD, be able
* to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC capture
* files, as pcap_datalink() will give 121 for both of them. Code
* that doesn't, such as the code in Wireshark, will be able to
* distinguish between them.
*
* FreeBSD's libpcap won't map a link-layer header type of 18 - i.e.,
* DLT_PFSYNC files from OpenBSD and possibly older versions of NetBSD,
* DragonFly BSD, and macOS - to DLT_PFSYNC, so code built with FreeBSD's
* libpcap won't treat those files as DLT_PFSYNC files.
*
* Other libpcaps won't map a link-layer header type of 121 to DLT_PFSYNC;
* this means they can read DLT_HHDLC files, if any exist, but won't
* treat pcap files written by any older versions of FreeBSD libpcap that
* didn't map to 246 as DLT_PFSYNC files.
*/
#ifdef __FreeBSD__
#define DLT_PFSYNC 121
#else
#define DLT_HHDLC 121
#endif
/*
* This is for RFC 2625 IP-over-Fibre Channel.
*
* This is not for use with raw Fibre Channel, where the link-layer
* header starts with a Fibre Channel frame header; it's for IP-over-FC,
* where the link-layer header starts with an RFC 2625 Network_Header
* field.
*/
#define DLT_IP_OVER_FC 122
/*
* This is for Full Frontal ATM on Solaris with SunATM, with a
* pseudo-header followed by an AALn PDU.
*
* There may be other forms of Full Frontal ATM on other OSes,
* with different pseudo-headers.
*
* If ATM software returns a pseudo-header with VPI/VCI information
* (and, ideally, packet type information, e.g. signalling, ILMI,
* LANE, LLC-multiplexed traffic, etc.), it should not use
* DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump
* and the like don't have to infer the presence or absence of a
* pseudo-header and the form of the pseudo-header.
*/
#define DLT_SUNATM 123 /* Solaris+SunATM */
/*
* Reserved as per request from Kent Dahlgren <kent@praesum.com>
* for private use.
*/
#define DLT_RIO 124 /* RapidIO */
#define DLT_PCI_EXP 125 /* PCI Express */
#define DLT_AURORA 126 /* Xilinx Aurora link layer */
/*
* Header for 802.11 plus a number of bits of link-layer information
* including radio information, used by some recent BSD drivers as
* well as the madwifi Atheros driver for Linux.
*/
#define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */
/*
* Reserved for the TZSP encapsulation, as per request from
* Chris Waters <chris.waters@networkchemistry.com>
* TZSP is a generic encapsulation for any other link type,
* which includes a means to include meta-information
* with the packet, e.g. signal strength and channel
* for 802.11 packets.
*/
#define DLT_TZSP 128 /* Tazmen Sniffer Protocol */
/*
* BSD's ARCNET headers have the source host, destination host,
* and type at the beginning of the packet; that's what's handed
* up to userland via BPF.
*
* Linux's ARCNET headers, however, have a 2-byte offset field
* between the host IDs and the type; that's what's handed up
* to userland via PF_PACKET sockets.
*
* We therefore have to have separate DLT_ values for them.
*/
#define DLT_ARCNET_LINUX 129 /* ARCNET */
/*
* Juniper-private data link types, as per request from
* Hannes Gredler <hannes@juniper.net>. The DLT_s are used
* for passing on chassis-internal metainformation such as
* QOS profiles, etc..
*/
#define DLT_JUNIPER_MLPPP 130
#define DLT_JUNIPER_MLFR 131
#define DLT_JUNIPER_ES 132
#define DLT_JUNIPER_GGSN 133
#define DLT_JUNIPER_MFR 134
#define DLT_JUNIPER_ATM2 135
#define DLT_JUNIPER_SERVICES 136
#define DLT_JUNIPER_ATM1 137
/*
* Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund
* <dieter@apple.com>. The header that's presented is an Ethernet-like
* header:
*
* #define FIREWIRE_EUI64_LEN 8
* struct firewire_header {
* u_char firewire_dhost[FIREWIRE_EUI64_LEN];
* u_char firewire_shost[FIREWIRE_EUI64_LEN];
* u_short firewire_type;
* };
*
* with "firewire_type" being an Ethernet type value, rather than,
* for example, raw GASP frames being handed up.
*/
#define DLT_APPLE_IP_OVER_IEEE1394 138
/*
* Various SS7 encapsulations, as per a request from Jeff Morriss
* <jeff.morriss[AT]ulticom.com> and subsequent discussions.
*/
#define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */
#define DLT_MTP2 140 /* MTP2, without pseudo-header */
#define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */
#define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */
/*
* DOCSIS MAC frames.
*/
#define DLT_DOCSIS 143
/*
* Linux-IrDA packets. Protocol defined at http://www.irda.org.
* Those packets include IrLAP headers and above (IrLMP...), but
* don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy
* framing can be handled by the hardware and depend on the bitrate.
* This is exactly the format you would get capturing on a Linux-IrDA
* interface (irdaX), but not on a raw serial port.
* Note the capture is done in "Linux-cooked" mode, so each packet include
* a fake packet header (struct sll_header). This is because IrDA packet
* decoding is dependant on the direction of the packet (incomming or
* outgoing).
* When/if other platform implement IrDA capture, we may revisit the
* issue and define a real DLT_IRDA...
* Jean II
*/
#define DLT_LINUX_IRDA 144
/*
* Reserved for IBM SP switch and IBM Next Federation switch.
*/
#define DLT_IBM_SP 145
#define DLT_IBM_SN 146
/*
* Reserved for private use. If you have some link-layer header type
* that you want to use within your organization, with the capture files
* using that link-layer header type not ever be sent outside your
* organization, you can use these values.
*
* No libpcap release will use these for any purpose, nor will any
* tcpdump release use them, either.
*
* Do *NOT* use these in capture files that you expect anybody not using
* your private versions of capture-file-reading tools to read; in
* particular, do *NOT* use them in products, otherwise you may find that
* people won't be able to use tcpdump, or snort, or Ethereal, or... to
* read capture files from your firewall/intrusion detection/traffic
* monitoring/etc. appliance, or whatever product uses that DLT_ value,
* and you may also find that the developers of those applications will
* not accept patches to let them read those files.
*
* Also, do not use them if somebody might send you a capture using them
* for *their* private type and tools using them for *your* private type
* would have to read them.
*
* Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value,
* as per the comment above, and use the type you're given.
*/
#define DLT_USER0 147
#define DLT_USER1 148
#define DLT_USER2 149
#define DLT_USER3 150
#define DLT_USER4 151
#define DLT_USER5 152
#define DLT_USER6 153
#define DLT_USER7 154
#define DLT_USER8 155
#define DLT_USER9 156
#define DLT_USER10 157
#define DLT_USER11 158
#define DLT_USER12 159
#define DLT_USER13 160
#define DLT_USER14 161
#define DLT_USER15 162
/*
* For future use with 802.11 captures - defined by AbsoluteValue
* Systems to store a number of bits of link-layer information
* including radio information:
*
* http://www.shaftnet.org/~pizza/software/capturefrm.txt
*
* but it might be used by some non-AVS drivers now or in the
* future.
*/
#define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>. The DLT_s are used
* for passing on chassis-internal metainformation such as
* QOS profiles, etc..
*/
#define DLT_JUNIPER_MONITOR 164
/*
* BACnet MS/TP frames.
*/
#define DLT_BACNET_MS_TP 165
/*
* Another PPP variant as per request from Karsten Keil <kkeil@suse.de>.
*
* This is used in some OSes to allow a kernel socket filter to distinguish
* between incoming and outgoing packets, on a socket intended to
* supply pppd with outgoing packets so it can do dial-on-demand and
* hangup-on-lack-of-demand; incoming packets are filtered out so they
* don't cause pppd to hold the connection up (you don't want random
* input packets such as port scans, packets from old lost connections,
* etc. to force the connection to stay up).
*
* The first byte of the PPP header (0xff03) is modified to accomodate
* the direction - 0x00 = IN, 0x01 = OUT.
*/
#define DLT_PPP_PPPD 166
/*
* Names for backwards compatibility with older versions of some PPP
* software; new software should use DLT_PPP_PPPD.
*/
#define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD
#define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>. The DLT_s are used
* for passing on chassis-internal metainformation such as
* QOS profiles, cookies, etc..
*/
#define DLT_JUNIPER_PPPOE 167
#define DLT_JUNIPER_PPPOE_ATM 168
#define DLT_GPRS_LLC 169 /* GPRS LLC */
#define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */
#define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */
/*
* Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line
* monitoring equipment.
*/
#define DLT_GCOM_T1E1 172
#define DLT_GCOM_SERIAL 173
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>. The DLT_ is used
* for internal communication to Physical Interface Cards (PIC)
*/
#define DLT_JUNIPER_PIC_PEER 174
/*
* Link types requested by Gregor Maier <gregor@endace.com> of Endace
* Measurement Systems. They add an ERF header (see
* http://www.endace.com/support/EndaceRecordFormat.pdf) in front of
* the link-layer header.
*/
#define DLT_ERF_ETH 175 /* Ethernet */
#define DLT_ERF_POS 176 /* Packet-over-SONET */
/*
* Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD
* for vISDN (http://www.orlandi.com/visdn/). Its link-layer header
* includes additional information before the LAPD header, so it's
* not necessarily a generic LAPD header.
*/
#define DLT_LINUX_LAPD 177
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ are used for prepending meta-information
* like interface index, interface name
* before standard Ethernet, PPP, Frelay & C-HDLC Frames
*/
#define DLT_JUNIPER_ETHER 178
#define DLT_JUNIPER_PPP 179
#define DLT_JUNIPER_FRELAY 180
#define DLT_JUNIPER_CHDLC 181
/*
* Multi Link Frame Relay (FRF.16)
*/
#define DLT_MFR 182
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ is used for internal communication with a
* voice Adapter Card (PIC)
*/
#define DLT_JUNIPER_VP 183
/*
* Arinc 429 frames.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
* Every frame contains a 32bit A429 label.
* More documentation on Arinc 429 can be found at
* http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
*/
#define DLT_A429 184
/*
* Arinc 653 Interpartition Communication messages.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
* Please refer to the A653-1 standard for more information.
*/
#define DLT_A653_ICM 185
/*
* This used to be "USB packets, beginning with a USB setup header;
* requested by Paolo Abeni <paolo.abeni@email.it>."
*
* However, that header didn't work all that well - it left out some
* useful information - and was abandoned in favor of the DLT_USB_LINUX
* header.
*
* This is now used by FreeBSD for its BPF taps for USB; that has its
* own headers. So it is written, so it is done.
*
* For source-code compatibility, we also define DLT_USB to have this
* value. We do it numerically so that, if code that includes this
* file (directly or indirectly) also includes an OS header that also
* defines DLT_USB as 186, we don't get a redefinition warning.
* (NetBSD 7 does that.)
*/
#define DLT_USB_FREEBSD 186
#define DLT_USB 186
/*
* Bluetooth HCI UART transport layer (part H:4); requested by
* Paolo Abeni.
*/
#define DLT_BLUETOOTH_HCI_H4 187
/*
* IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz
* <cruz_petagay@bah.com>.
*/
#define DLT_IEEE802_16_MAC_CPS 188
/*
* USB packets, beginning with a Linux USB header; requested by
* Paolo Abeni <paolo.abeni@email.it>.
*/
#define DLT_USB_LINUX 189
/*
* Controller Area Network (CAN) v. 2.0B packets.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
* Used to dump CAN packets coming from a CAN Vector board.
* More documentation on the CAN v2.0B frames can be found at
* http://www.can-cia.org/downloads/?269
*/
#define DLT_CAN20B 190
/*
* IEEE 802.15.4, with address fields padded, as is done by Linux
* drivers; requested by Juergen Schimmer.
*/
#define DLT_IEEE802_15_4_LINUX 191
/*
* Per Packet Information encapsulated packets.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
*/
#define DLT_PPI 192
/*
* Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header;
* requested by Charles Clancy.
*/
#define DLT_IEEE802_16_MAC_CPS_RADIO 193
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ is used for internal communication with a
* integrated service module (ISM).
*/
#define DLT_JUNIPER_ISM 194
/*
* IEEE 802.15.4, exactly as it appears in the spec (no padding, no
* nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>.
* For this one, we expect the FCS to be present at the end of the frame;
* if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used.
*/
#define DLT_IEEE802_15_4 195
/*
* Various link-layer types, with a pseudo-header, for SITA
* (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com).
*/
#define DLT_SITA 196
/*
* Various link-layer types, with a pseudo-header, for Endace DAG cards;
* encapsulates Endace ERF records. Requested by Stephen Donnelly
* <stephen@endace.com>.
*/
#define DLT_ERF 197
/*
* Special header prepended to Ethernet packets when capturing from a
* u10 Networks board. Requested by Phil Mulholland
* <phil@u10networks.com>.
*/
#define DLT_RAIF1 198
/*
* IPMB packet for IPMI, beginning with the I2C slave address, followed
* by the netFn and LUN, etc.. Requested by Chanthy Toeung
* <chanthy.toeung@ca.kontron.com>.
*/
#define DLT_IPMB 199
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ is used for capturing data on a secure tunnel interface.
*/
#define DLT_JUNIPER_ST 200
/*
* Bluetooth HCI UART transport layer (part H:4), with pseudo-header
* that includes direction information; requested by Paolo Abeni.
*/
#define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201
/*
* AX.25 packet with a 1-byte KISS header; see
*
* http://www.ax25.net/kiss.htm
*
* as per Richard Stearn <richard@rns-stearn.demon.co.uk>.
*/
#define DLT_AX25_KISS 202
/*
* LAPD packets from an ISDN channel, starting with the address field,
* with no pseudo-header.
* Requested by Varuna De Silva <varunax@gmail.com>.
*/
#define DLT_LAPD 203
/*
* Variants of various link-layer headers, with a one-byte direction
* pseudo-header prepended - zero means "received by this host",
* non-zero (any non-zero value) means "sent by this host" - as per
* Will Barker <w.barker@zen.co.uk>.
*/
#define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */
#define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */
#define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */
#define DLT_LAPB_WITH_DIR 207 /* LAPB */
/*
* 208 is reserved for an as-yet-unspecified proprietary link-layer
* type, as requested by Will Barker.
*/
/*
* IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman
* <avn@pigeonpoint.com>.
*/
#define DLT_IPMB_LINUX 209
/*
* FlexRay automotive bus - http://www.flexray.com/ - as requested
* by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_FLEXRAY 210
/*
* Media Oriented Systems Transport (MOST) bus for multimedia
* transport - http://www.mostcooperation.com/ - as requested
* by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_MOST 211
/*
* Local Interconnect Network (LIN) bus for vehicle networks -
* http://www.lin-subbus.org/ - as requested by Hannes Kaelber
* <hannes.kaelber@x2e.de>.
*/
#define DLT_LIN 212
/*
* X2E-private data link type used for serial line capture,
* as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_X2E_SERIAL 213
/*
* X2E-private data link type used for the Xoraya data logger
* family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_X2E_XORAYA 214
/*
* IEEE 802.15.4, exactly as it appears in the spec (no padding, no
* nothing), but with the PHY-level data for non-ASK PHYs (4 octets
* of 0 as preamble, one octet of SFD, one octet of frame length+
* reserved bit, and then the MAC-layer data, starting with the
* frame control field).
*
* Requested by Max Filippov <jcmvbkbc@gmail.com>.
*/
#define DLT_IEEE802_15_4_NONASK_PHY 215
/*
* David Gibson <david@gibson.dropbear.id.au> requested this for
* captures from the Linux kernel /dev/input/eventN devices. This
* is used to communicate keystrokes and mouse movements from the
* Linux kernel to display systems, such as Xorg.
*/
#define DLT_LINUX_EVDEV 216
/*
* GSM Um and Abis interfaces, preceded by a "gsmtap" header.
*
* Requested by Harald Welte <laforge@gnumonks.org>.
*/
#define DLT_GSMTAP_UM 217
#define DLT_GSMTAP_ABIS 218
/*
* MPLS, with an MPLS label as the link-layer header.
* Requested by Michele Marchetto <michele@openbsd.org> on behalf
* of OpenBSD.
*/
#define DLT_MPLS 219
/*
* USB packets, beginning with a Linux USB header, with the USB header
* padded to 64 bytes; required for memory-mapped access.
*/
#define DLT_USB_LINUX_MMAPPED 220
/*
* DECT packets, with a pseudo-header; requested by
* Matthias Wenzel <tcpdump@mazzoo.de>.
*/
#define DLT_DECT 221
/*
* From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov>
* Date: Mon, 11 May 2009 11:18:30 -0500
*
* DLT_AOS. We need it for AOS Space Data Link Protocol.
* I have already written dissectors for but need an OK from
* legal before I can submit a patch.
*
*/
#define DLT_AOS 222
/*
* Wireless HART (Highway Addressable Remote Transducer)
* From the HART Communication Foundation
* IES/PAS 62591
*
* Requested by Sam Roberts <vieuxtech@gmail.com>.
*/
#define DLT_WIHART 223
/*
* Fibre Channel FC-2 frames, beginning with a Frame_Header.
* Requested by Kahou Lei <kahou82@gmail.com>.
*/
#define DLT_FC_2 224
/*
* Fibre Channel FC-2 frames, beginning with an encoding of the
* SOF, and ending with an encoding of the EOF.
*
* The encodings represent the frame delimiters as 4-byte sequences
* representing the corresponding ordered sets, with K28.5
* represented as 0xBC, and the D symbols as the corresponding
* byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2,
* is represented as 0xBC 0xB5 0x55 0x55.
*
* Requested by Kahou Lei <kahou82@gmail.com>.
*/
#define DLT_FC_2_WITH_FRAME_DELIMS 225
/*
* Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>.
*
* The pseudo-header starts with a one-byte version number; for version 2,
* the pseudo-header is:
*
* struct dl_ipnetinfo {
* uint8_t dli_version;
* uint8_t dli_family;
* uint16_t dli_htype;
* uint32_t dli_pktlen;
* uint32_t dli_ifindex;
* uint32_t dli_grifindex;
* uint32_t dli_zsrc;
* uint32_t dli_zdst;
* };
*
* dli_version is 2 for the current version of the pseudo-header.
*
* dli_family is a Solaris address family value, so it's 2 for IPv4
* and 26 for IPv6.
*
* dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing
* packets, and 2 for packets arriving from another zone on the same
* machine.
*
* dli_pktlen is the length of the packet data following the pseudo-header
* (so the captured length minus dli_pktlen is the length of the
* pseudo-header, assuming the entire pseudo-header was captured).
*
* dli_ifindex is the interface index of the interface on which the
* packet arrived.
*
* dli_grifindex is the group interface index number (for IPMP interfaces).
*
* dli_zsrc is the zone identifier for the source of the packet.
*
* dli_zdst is the zone identifier for the destination of the packet.
*
* A zone number of 0 is the global zone; a zone number of 0xffffffff
* means that the packet arrived from another host on the network, not
* from another zone on the same machine.
*
* An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates
* which of those it is.
*/
#define DLT_IPNET 226
/*
* CAN (Controller Area Network) frames, with a pseudo-header as supplied
* by Linux SocketCAN, and with multi-byte numerical fields in that header
* in big-endian byte order.
*
* See Documentation/networking/can.txt in the Linux source.
*
* Requested by Felix Obenhuber <felix@obenhuber.de>.
*/
#define DLT_CAN_SOCKETCAN 227
/*
* Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies
* whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>.
*/
#define DLT_IPV4 228
#define DLT_IPV6 229
/*
* IEEE 802.15.4, exactly as it appears in the spec (no padding, no
* nothing), and with no FCS at the end of the frame; requested by
* Jon Smirl <jonsmirl@gmail.com>.
*/
#define DLT_IEEE802_15_4_NOFCS 230
/*
* Raw D-Bus:
*
* http://www.freedesktop.org/wiki/Software/dbus
*
* messages:
*
* http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
*
* starting with the endianness flag, followed by the message type, etc.,
* but without the authentication handshake before the message sequence:
*
* http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol
*
* Requested by Martin Vidner <martin@vidner.net>.
*/
#define DLT_DBUS 231
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
*/
#define DLT_JUNIPER_VS 232
#define DLT_JUNIPER_SRX_E2E 233
#define DLT_JUNIPER_FIBRECHANNEL 234
/*
* DVB-CI (DVB Common Interface for communication between a PC Card
* module and a DVB receiver). See
*
* http://www.kaiser.cx/pcap-dvbci.html
*
* for the specification.
*
* Requested by Martin Kaiser <martin@kaiser.cx>.
*/
#define DLT_DVB_CI 235
/*
* Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but
* *not* the same as, 27.010). Requested by Hans-Christoph Schemmel
* <hans-christoph.schemmel@cinterion.com>.
*/
#define DLT_MUX27010 236
/*
* STANAG 5066 D_PDUs. Requested by M. Baris Demiray
* <barisdemiray@gmail.com>.
*/
#define DLT_STANAG_5066_D_PDU 237
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
*/
#define DLT_JUNIPER_ATM_CEMIC 238
/*
* NetFilter LOG messages
* (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets)
*
* Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl>
*/
#define DLT_NFLOG 239
/*
* Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
* for Ethernet packets with a 4-byte pseudo-header and always
* with the payload including the FCS, as supplied by their
* netANALYZER hardware and software.
*
* Requested by Holger P. Frommer <HPfrommer@hilscher.com>
*/
#define DLT_NETANALYZER 240
/*
* Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
* for Ethernet packets with a 4-byte pseudo-header and FCS and
* with the Ethernet header preceded by 7 bytes of preamble and
* 1 byte of SFD, as supplied by their netANALYZER hardware and
* software.
*
* Requested by Holger P. Frommer <HPfrommer@hilscher.com>
*/
#define DLT_NETANALYZER_TRANSPARENT 241
/*
* IP-over-InfiniBand, as specified by RFC 4391.
*
* Requested by Petr Sumbera <petr.sumbera@oracle.com>.
*/
#define DLT_IPOIB 242
/*
* MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0).
*
* Requested by Guy Martin <gmsoft@tuxicoman.be>.
*/
#define DLT_MPEG_2_TS 243
/*
* ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as
* used by their ng40 protocol tester.
*
* Requested by Jens Grimmer <jens.grimmer@ng4t.com>.
*/
#define DLT_NG40 244
/*
* Pseudo-header giving adapter number and flags, followed by an NFC
* (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU,
* as specified by NFC Forum Logical Link Control Protocol Technical
* Specification LLCP 1.1.
*
* Requested by Mike Wakerly <mikey@google.com>.
*/
#define DLT_NFC_LLCP 245
/*
* 246 is used as LINKTYPE_PFSYNC; do not use it for any other purpose.
*
* DLT_PFSYNC has different values on different platforms, and all of
* them collide with something used elsewhere. On platforms that
* don't already define it, define it as 246.
*/
#if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__)
#define DLT_PFSYNC 246
#endif
/*
* Raw InfiniBand packets, starting with the Local Routing Header.
*
* Requested by Oren Kladnitsky <orenk@mellanox.com>.
*/
#define DLT_INFINIBAND 247
/*
* SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6).
*
* Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>.
*/
#define DLT_SCTP 248
/*
* USB packets, beginning with a USBPcap header.
*
* Requested by Tomasz Mon <desowin@gmail.com>
*/
#define DLT_USBPCAP 249
/*
* Schweitzer Engineering Laboratories "RTAC" product serial-line
* packets.
*
* Requested by Chris Bontje <chris_bontje@selinc.com>.
*/
#define DLT_RTAC_SERIAL 250
/*
* Bluetooth Low Energy air interface link-layer packets.
*
* Requested by Mike Kershaw <dragorn@kismetwireless.net>.
*/
#define DLT_BLUETOOTH_LE_LL 251
/*
* DLT type for upper-protocol layer PDU saves from wireshark.
*
* the actual contents are determined by two TAGs stored with each
* packet:
* EXP_PDU_TAG_LINKTYPE the link type (LINKTYPE_ value) of the
* original packet.
*
* EXP_PDU_TAG_PROTO_NAME the name of the wireshark dissector
* that can make sense of the data stored.
*/
#define DLT_WIRESHARK_UPPER_PDU 252
/*
* DLT type for the netlink protocol (nlmon devices).
*/
#define DLT_NETLINK 253
/*
* Bluetooth Linux Monitor headers for the BlueZ stack.
*/
#define DLT_BLUETOOTH_LINUX_MONITOR 254
/*
* Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as
* captured by Ubertooth.
*/
#define DLT_BLUETOOTH_BREDR_BB 255
/*
* Bluetooth Low Energy link layer packets, as captured by Ubertooth.
*/
#define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256
/*
* PROFIBUS data link layer.
*/
#define DLT_PROFIBUS_DL 257
/*
* Apple's DLT_PKTAP headers.
*
* Sadly, the folks at Apple either had no clue that the DLT_USERn values
* are for internal use within an organization and partners only, and
* didn't know that the right way to get a link-layer header type is to
* ask tcpdump.org for one, or knew and didn't care, so they just
* used DLT_USER2, which causes problems for everything except for
* their version of tcpdump.
*
* So I'll just give them one; hopefully this will show up in a
* libpcap release in time for them to get this into 10.10 Big Sur
* or whatever Mavericks' successor is called. LINKTYPE_PKTAP
* will be 258 *even on macOS*; that is *intentional*, so that
* PKTAP files look the same on *all* OSes (different OSes can have
* different numerical values for a given DLT_, but *MUST NOT* have
* different values for what goes in a file, as files can be moved
* between OSes!).
*
* When capturing, on a system with a Darwin-based OS, on a device
* that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this
* version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP,
* and that will continue to be DLT_USER2 on Darwin-based OSes. That way,
* binary compatibility with Mavericks is preserved for programs using
* this version of libpcap. This does mean that if you were using
* DLT_USER2 for some capture device on macOS, you can't do so with
* this version of libpcap, just as you can't with Apple's libpcap -
* on macOS, they define DLT_PKTAP to be DLT_USER2, so programs won't
* be able to distinguish between PKTAP and whatever you were using
* DLT_USER2 for.
*
* If the program saves the capture to a file using this version of
* libpcap's pcap_dump code, the LINKTYPE_ value in the file will be
* LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes.
* That way, the file will *not* be a DLT_USER2 file. That means
* that the latest version of tcpdump, when built with this version
* of libpcap, and sufficiently recent versions of Wireshark will
* be able to read those files and interpret them correctly; however,
* Apple's version of tcpdump in OS X 10.9 won't be able to handle
* them. (Hopefully, Apple will pick up this version of libpcap,
* and the corresponding version of tcpdump, so that tcpdump will
* be able to handle the old LINKTYPE_USER2 captures *and* the new
* LINKTYPE_PKTAP captures.)
*/
#ifdef __APPLE__
#define DLT_PKTAP DLT_USER2
#else
#define DLT_PKTAP 258
#endif
/*
* Ethernet packets preceded by a header giving the last 6 octets
* of the preamble specified by 802.3-2012 Clause 65, section
* 65.1.3.2 "Transmit".
*/
#define DLT_EPON 259
/*
* IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format"
* in the PICMG HPM.2 specification.
*/
#define DLT_IPMI_HPM_2 260
/*
* per Joshua Wright <jwright@hasborg.com>, formats for Zwave captures.
*/
#define DLT_ZWAVE_R1_R2 261
#define DLT_ZWAVE_R3 262
/*
* per Steve Karg <skarg@users.sourceforge.net>, formats for Wattstopper
* Digital Lighting Management room bus serial protocol captures.
*/
#define DLT_WATTSTOPPER_DLM 263
/*
* ISO 14443 contactless smart card messages.
*/
#define DLT_ISO_14443 264
/*
* Radio data system (RDS) groups. IEC 62106.
* Per Jonathan Brucker <jonathan.brucke@gmail.com>.
*/
#define DLT_RDS 265
/*
* USB packets, beginning with a Darwin (macOS, etc.) header.
*/
#define DLT_USB_DARWIN 266
/*
* OpenBSD DLT_OPENFLOW.
*/
#define DLT_OPENFLOW 267
/*
* SDLC frames containing SNA PDUs.
*/
#define DLT_SDLC 268
/*
* per "Selvig, Bjorn" <b.selvig@ti.com> used for
* TI protocol sniffer.
*/
#define DLT_TI_LLN_SNIFFER 269
/*
* per: Erik de Jong <erikdejong at gmail.com> for
* https://github.com/eriknl/LoRaTap/releases/tag/v0.1
*/
#define DLT_LORATAP 270
/*
* per: Stefanha at gmail.com for
* http://lists.sandelman.ca/pipermail/tcpdump-workers/2017-May/000772.html
* and: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/vsockmon.h
* for: http://qemu-project.org/Features/VirtioVsock
*/
#define DLT_VSOCK 271
/*
* Nordic Semiconductor Bluetooth LE sniffer.
*/
#define DLT_NORDIC_BLE 272
/*
* Excentis DOCSIS 3.1 RF sniffer (XRA-31)
* per: bruno.verstuyft at excentis.com
* http://www.xra31.com/xra-header
*/
#define DLT_DOCSIS31_XRA31 273
/*
* mPackets, as specified by IEEE 802.3br Figure 99-4, starting
* with the preamble and always ending with a CRC field.
*/
#define DLT_ETHERNET_MPACKET 274
/*
* DisplayPort AUX channel monitoring data as specified by VESA
* DisplayPort(DP) Standard preceeded by a pseudo-header.
* per dirk.eibach at gdsys.cc
*/
#define DLT_DISPLAYPORT_AUX 275
/*
* In case the code that includes this file (directly or indirectly)
* has also included OS files that happen to define DLT_MATCHING_MAX,
* with a different value (perhaps because that OS hasn't picked up
* the latest version of our DLT definitions), we undefine the
* previous value of DLT_MATCHING_MAX.
*/
#ifdef DLT_MATCHING_MAX
#undef DLT_MATCHING_MAX
#endif
#define DLT_MATCHING_MAX 275 /* highest value in the "matching" range */
/*
* DLT and savefile link type values are split into a class and
* a member of that class. A class value of 0 indicates a regular
* DLT_/LINKTYPE_ value.
*/
#define DLT_CLASS(x) ((x) & 0x03ff0000)
/*
* NetBSD-specific generic "raw" link type. The class value indicates
* that this is the generic raw type, and the lower 16 bits are the
* address family we're dealing with. Those values are NetBSD-specific;
* do not assume that they correspond to AF_ values for your operating
* system.
*/
#define DLT_CLASS_NETBSD_RAWAF 0x02240000
#define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af))
#define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff)
#define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF)
#endif /* !_NET_DLT_H_ */
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