2 * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from the Stanford/CMU enet packet filter,
6 * (net/enet.c) distributed as part of 4.3BSD, and code contributed
7 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * @(#)bpf.h 7.1 (Berkeley) 5/7/91
43 * Link-layer header type codes.
45 * Do *NOT* add new values to this list without asking
46 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run
47 * the risk of using a value that's already being used for some other
48 * purpose, and of having tools that read libpcap-format captures not
49 * being able to handle captures with your new DLT_ value, with no hope
50 * that they will ever be changed to do so (as that would destroy their
51 * ability to read captures using that value for that other purpose).
55 * https://www.tcpdump.org/linktypes.html
57 * for detailed descriptions of some of these link-layer header types.
61 * These are the types that are the same on all platforms, and that
62 * have been defined by <net/bpf.h> for ages.
64 #define DLT_NULL 0 /* BSD loopback encapsulation */
65 #define DLT_EN10MB 1 /* Ethernet (10Mb) */
66 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */
67 #define DLT_AX25 3 /* Amateur Radio AX.25 */
68 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */
69 #define DLT_CHAOS 5 /* Chaos */
70 #define DLT_IEEE802 6 /* 802.5 Token Ring */
71 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */
72 #define DLT_SLIP 8 /* Serial Line IP */
73 #define DLT_PPP 9 /* Point-to-point Protocol */
74 #define DLT_FDDI 10 /* FDDI */
77 * These are types that are different on some platforms, and that
78 * have been defined by <net/bpf.h> for ages. We use #ifdefs to
79 * detect the BSDs that define them differently from the traditional
82 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS,
83 * but I don't know what the right #define is for BSD/OS.
85 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */
88 #define DLT_RAW 14 /* raw IP */
90 #define DLT_RAW 12 /* raw IP */
94 * Given that the only OS that currently generates BSD/OS SLIP or PPP
95 * is, well, BSD/OS, arguably everybody should have chosen its values
96 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they
99 #if defined(__NetBSD__) || defined(__FreeBSD__)
100 #ifndef DLT_SLIP_BSDOS
101 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */
102 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */
105 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */
106 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */
110 * NetBSD uses 15 for HIPPI.
112 * From a quick look at sys/net/if_hippi.h and sys/net/if_hippisubr.c
113 * in an older version of NetBSD , the header appears to be:
115 * a 1-byte ULP field (ULP-id)?
117 * a 1-byte flags field;
119 * a 2-byte "offsets" field;
121 * a 4-byte "D2 length" field (D2_Size?);
123 * a 4-byte "destination switch" field (or a 1-byte field
124 * containing the Forwarding Class, Double_Wide, and Message_Type
125 * sub fields, followed by a 3-byte Destination_Switch_Address
126 * field?, HIPPI-LE 3.4-style?);
128 * a 4-byte "source switch" field (or a 1-byte field containing the
129 * Destination_Address_type and Source_Address_Type fields, followed
130 * by a 3-byte Source_Switch_Address field, HIPPI-LE 3.4-style?);
132 * a 2-byte reserved field;
134 * a 6-byte destination address field;
136 * a 2-byte "local admin" field;
138 * a 6-byte source address field;
140 * followed by an 802.2 LLC header.
142 * This looks somewhat like something derived from the HIPPI-FP 4.4
143 * Header_Area, followed an HIPPI-FP 4.4 D1_Area containing a D1 data set
144 * with the header in HIPPI-LE 3.4 (ANSI X3.218-1993), followed by an
145 * HIPPI-FP 4.4 D2_Area (with no Offset) containing the 802.2 LLC header
146 * and payload? Or does the "offsets" field contain the D2_Offset,
147 * with that many bytes of offset before the payload?
149 * See http://wotug.org/parallel/standards/hippi/ for an archive of
150 * HIPPI specifications.
152 * RFC 2067 imposes some additional restrictions. It says that the
153 * Offset is always zero
155 * HIPPI is long-gone, and the source files found in an older version
156 * of NetBSD don't appear to be in the main CVS branch, so we may never
157 * see a capture with this link-layer type.
159 #if defined(__NetBSD__)
160 #define DLT_HIPPI 15 /* HIPPI */
164 * NetBSD uses 16 for DLT_HDLC; see below.
165 * BSD/OS uses it for PPP; see above.
166 * As far as I know, no other OS uses it for anything; don't use it
171 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is.
173 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG
174 * as 117 so that pflog captures would use a link-layer header type
175 * value that didn't collide with any other values. On all
176 * platforms other than OpenBSD, we defined DLT_PFLOG as 117,
177 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG.
179 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well.
181 * Don't use 17 for anything else.
185 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and
186 * macOS; don't use it for anything else. (FreeBSD uses 121, which
187 * collides with DLT_HHDLC, even though it doesn't use 18 for
188 * anything and doesn't appear to have ever used it for anything.)
190 * We define it as 18 on those platforms; it is, unfortunately, used
191 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC
192 * in general. As the packet format for it, like that for
193 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent,
194 * we don't support printing it in tcpdump except on OSes that
195 * have the relevant header files, so it's not that useful on
198 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__)
199 #define DLT_PFSYNC 18
202 #define DLT_ATM_CLIP 19 /* Linux Classical IP over ATM */
205 * Apparently Redback uses this for its SmartEdge 400/800. I hope
206 * nobody else decided to use it, too.
208 #define DLT_REDBACK_SMARTEDGE 32
211 * These values are defined by NetBSD; other platforms should refrain from
212 * using them for other purposes, so that NetBSD savefiles with link
213 * types of 50 or 51 can be read as this type on all platforms.
215 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */
216 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */
219 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses
220 * a link-layer type of 99 for the tcpdump it supplies. The link-layer
221 * header has 6 bytes of unknown data, something that appears to be an
222 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture
225 #define DLT_SYMANTEC_FIREWALL 99
228 * Values between 100 and 103 are used in capture file headers as
229 * link-layer header type LINKTYPE_ values corresponding to DLT_ types
230 * that differ between platforms; don't use those values for new DLT_
235 * Values starting with 104 are used for newly-assigned link-layer
236 * header type values; for those link-layer header types, the DLT_
237 * value returned by pcap_datalink() and passed to pcap_open_dead(),
238 * and the LINKTYPE_ value that appears in capture files, are the
241 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is
242 * the highest such value.
244 #define DLT_MATCHING_MIN 104
247 * This value was defined by libpcap 0.5; platforms that have defined
248 * it with a different value should define it here with that value -
249 * a link type of 104 in a save file will be mapped to DLT_C_HDLC,
250 * whatever value that happens to be, so programs will correctly
251 * handle files with that link type regardless of the value of
254 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source
255 * compatibility with programs written for BSD/OS.
257 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
258 * for source compatibility with programs written for libpcap 0.5.
260 #define DLT_C_HDLC 104 /* Cisco HDLC */
261 #define DLT_CHDLC DLT_C_HDLC
263 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */
266 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW,
267 * except when it isn't. (I.e., sometimes it's just raw IP, and
268 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL,
269 * so that we don't have to worry about the link-layer header.)
273 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides
275 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header
278 #define DLT_FRELAY 107
281 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
282 * that the AF_ type in the link-layer header is in network byte order.
284 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so
285 * we don't use 12 for it in OSes other than OpenBSD; instead, we
286 * use the same value as LINKTYPE_LOOP.
295 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
296 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other
297 * than OpenBSD; instead, we use the same value as LINKTYPE_ENC.
306 * Values 110 and 111 are reserved for use in capture file headers
307 * as link-layer types corresponding to DLT_ types that might differ
308 * between platforms; don't use those values for new DLT_ types
309 * other than the corresponding DLT_ types.
313 * NetBSD uses 16 for (Cisco) "HDLC framing". For other platforms,
314 * we define it to have the same value as LINKTYPE_NETBSD_HDLC.
316 #if defined(__NetBSD__)
317 #define DLT_HDLC 16 /* Cisco HDLC */
323 * Linux cooked sockets.
325 #define DLT_LINUX_SLL 113
328 * Apple LocalTalk hardware.
330 #define DLT_LTALK 114
335 #define DLT_ECONET 115
338 * Reserved for use with OpenBSD ipfilter.
340 #define DLT_IPFILTER 116
345 #define DLT_PFLOG 117
348 * Registered for Cisco-internal use.
350 #define DLT_CISCO_IOS 118
353 * For 802.11 cards using the Prism II chips, with a link-layer
354 * header including Prism monitor mode information plus an 802.11
357 #define DLT_PRISM_HEADER 119
360 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header
361 * (see Doug Ambrisko's FreeBSD patches).
363 #define DLT_AIRONET_HEADER 120
368 * 121 was reserved for Siemens HiPath HDLC on 2002-01-25, as
369 * requested by Tomas Kukosa.
371 * On 2004-02-25, a FreeBSD checkin to sys/net/bpf.h was made that
372 * assigned 121 as DLT_PFSYNC. In current versions, its libpcap
373 * does DLT_ <-> LINKTYPE_ mapping, mapping DLT_PFSYNC to a
374 * LINKTYPE_PFSYNC value of 246, so it should write out DLT_PFSYNC
375 * dump files with 246 as the link-layer header type. (Earlier
376 * versions might not have done mapping, in which case they would
377 * have written them out with a link-layer header type of 121.)
379 * OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC;
380 * its libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would
381 * write out DLT_PFSYNC dump files with use 18 as the link-layer
384 * NetBSD, DragonFly BSD, and Darwin also use 18 for DLT_PFSYNC; in
385 * current versions, their libpcaps do DLT_ <-> LINKTYPE_ mapping,
386 * mapping DLT_PFSYNC to a LINKTYPE_PFSYNC value of 246, so they
387 * should write out DLT_PFSYNC dump files with 246 as the link-layer
388 * header type. (Earlier versions might not have done mapping,
389 * in which case they'd work the same way OpenBSD does, writing
390 * them out with a link-layer header type of 18.)
392 * We'll define DLT_PFSYNC as:
394 * 18 on NetBSD, OpenBSD, DragonFly BSD, and Darwin;
398 * 246 everywhere else.
400 * We'll define DLT_HHDLC as 121 on everything except for FreeBSD;
401 * anybody who wants to compile, on FreeBSD, code that uses DLT_HHDLC
404 * We'll define LINKTYPE_PFSYNC as 246 on *all* platforms, so that
405 * savefiles written using *this* code won't use 18 or 121 for PFSYNC,
406 * they'll all use 246.
408 * Code that uses pcap_datalink() to determine the link-layer header
409 * type of a savefile won't, when built and run on FreeBSD, be able
410 * to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC capture
411 * files, as pcap_datalink() will give 121 for both of them. Code
412 * that doesn't, such as the code in Wireshark, will be able to
413 * distinguish between them.
415 * FreeBSD's libpcap won't map a link-layer header type of 18 - i.e.,
416 * DLT_PFSYNC files from OpenBSD and possibly older versions of NetBSD,
417 * DragonFly BSD, and macOS - to DLT_PFSYNC, so code built with FreeBSD's
418 * libpcap won't treat those files as DLT_PFSYNC files.
420 * Other libpcaps won't map a link-layer header type of 121 to DLT_PFSYNC;
421 * this means they can read DLT_HHDLC files, if any exist, but won't
422 * treat pcap files written by any older versions of FreeBSD libpcap that
423 * didn't map to 246 as DLT_PFSYNC files.
426 #define DLT_PFSYNC 121
428 #define DLT_HHDLC 121
432 * This is for RFC 2625 IP-over-Fibre Channel.
434 * This is not for use with raw Fibre Channel, where the link-layer
435 * header starts with a Fibre Channel frame header; it's for IP-over-FC,
436 * where the link-layer header starts with an RFC 2625 Network_Header
439 #define DLT_IP_OVER_FC 122
442 * This is for Full Frontal ATM on Solaris with SunATM, with a
443 * pseudo-header followed by an AALn PDU.
445 * There may be other forms of Full Frontal ATM on other OSes,
446 * with different pseudo-headers.
448 * If ATM software returns a pseudo-header with VPI/VCI information
449 * (and, ideally, packet type information, e.g. signalling, ILMI,
450 * LANE, LLC-multiplexed traffic, etc.), it should not use
451 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump
452 * and the like don't have to infer the presence or absence of a
453 * pseudo-header and the form of the pseudo-header.
455 #define DLT_SUNATM 123 /* Solaris+SunATM */
458 * Reserved as per request from Kent Dahlgren <kent@praesum.com>
461 #define DLT_RIO 124 /* RapidIO */
462 #define DLT_PCI_EXP 125 /* PCI Express */
463 #define DLT_AURORA 126 /* Xilinx Aurora link layer */
466 * Header for 802.11 plus a number of bits of link-layer information
467 * including radio information, used by some recent BSD drivers as
468 * well as the madwifi Atheros driver for Linux.
470 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */
473 * Reserved for the TZSP encapsulation, as per request from
474 * Chris Waters <chris.waters@networkchemistry.com>
475 * TZSP is a generic encapsulation for any other link type,
476 * which includes a means to include meta-information
477 * with the packet, e.g. signal strength and channel
478 * for 802.11 packets.
480 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */
483 * BSD's ARCNET headers have the source host, destination host,
484 * and type at the beginning of the packet; that's what's handed
485 * up to userland via BPF.
487 * Linux's ARCNET headers, however, have a 2-byte offset field
488 * between the host IDs and the type; that's what's handed up
489 * to userland via PF_PACKET sockets.
491 * We therefore have to have separate DLT_ values for them.
493 #define DLT_ARCNET_LINUX 129 /* ARCNET */
496 * Juniper-private data link types, as per request from
497 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
498 * for passing on chassis-internal metainformation such as
499 * QOS profiles, etc..
501 #define DLT_JUNIPER_MLPPP 130
502 #define DLT_JUNIPER_MLFR 131
503 #define DLT_JUNIPER_ES 132
504 #define DLT_JUNIPER_GGSN 133
505 #define DLT_JUNIPER_MFR 134
506 #define DLT_JUNIPER_ATM2 135
507 #define DLT_JUNIPER_SERVICES 136
508 #define DLT_JUNIPER_ATM1 137
511 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund
512 * <dieter@apple.com>. The header that's presented is an Ethernet-like
515 * #define FIREWIRE_EUI64_LEN 8
516 * struct firewire_header {
517 * u_char firewire_dhost[FIREWIRE_EUI64_LEN];
518 * u_char firewire_shost[FIREWIRE_EUI64_LEN];
519 * u_short firewire_type;
522 * with "firewire_type" being an Ethernet type value, rather than,
523 * for example, raw GASP frames being handed up.
525 #define DLT_APPLE_IP_OVER_IEEE1394 138
528 * Various SS7 encapsulations, as per a request from Jeff Morriss
529 * <jeff.morriss[AT]ulticom.com> and subsequent discussions.
531 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */
532 #define DLT_MTP2 140 /* MTP2, without pseudo-header */
533 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */
534 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */
539 #define DLT_DOCSIS 143
542 * Linux-IrDA packets. Protocol defined at https://www.irda.org.
543 * Those packets include IrLAP headers and above (IrLMP...), but
544 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy
545 * framing can be handled by the hardware and depend on the bitrate.
546 * This is exactly the format you would get capturing on a Linux-IrDA
547 * interface (irdaX), but not on a raw serial port.
548 * Note the capture is done in "Linux-cooked" mode, so each packet include
549 * a fake packet header (struct sll_header). This is because IrDA packet
550 * decoding is dependent on the direction of the packet (incoming or
552 * When/if other platform implement IrDA capture, we may revisit the
553 * issue and define a real DLT_IRDA...
556 #define DLT_LINUX_IRDA 144
559 * Reserved for IBM SP switch and IBM Next Federation switch.
561 #define DLT_IBM_SP 145
562 #define DLT_IBM_SN 146
565 * Reserved for private use. If you have some link-layer header type
566 * that you want to use within your organization, with the capture files
567 * using that link-layer header type not ever be sent outside your
568 * organization, you can use these values.
570 * No libpcap release will use these for any purpose, nor will any
571 * tcpdump release use them, either.
573 * Do *NOT* use these in capture files that you expect anybody not using
574 * your private versions of capture-file-reading tools to read; in
575 * particular, do *NOT* use them in products, otherwise you may find that
576 * people won't be able to use tcpdump, or snort, or Ethereal, or... to
577 * read capture files from your firewall/intrusion detection/traffic
578 * monitoring/etc. appliance, or whatever product uses that DLT_ value,
579 * and you may also find that the developers of those applications will
580 * not accept patches to let them read those files.
582 * Also, do not use them if somebody might send you a capture using them
583 * for *their* private type and tools using them for *your* private type
584 * would have to read them.
586 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value,
587 * as per the comment above, and use the type you're given.
589 #define DLT_USER0 147
590 #define DLT_USER1 148
591 #define DLT_USER2 149
592 #define DLT_USER3 150
593 #define DLT_USER4 151
594 #define DLT_USER5 152
595 #define DLT_USER6 153
596 #define DLT_USER7 154
597 #define DLT_USER8 155
598 #define DLT_USER9 156
599 #define DLT_USER10 157
600 #define DLT_USER11 158
601 #define DLT_USER12 159
602 #define DLT_USER13 160
603 #define DLT_USER14 161
604 #define DLT_USER15 162
607 * For future use with 802.11 captures - defined by AbsoluteValue
608 * Systems to store a number of bits of link-layer information
609 * including radio information:
611 * http://www.shaftnet.org/~pizza/software/capturefrm.txt
613 * but it might be used by some non-AVS drivers now or in the
616 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */
619 * Juniper-private data link type, as per request from
620 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
621 * for passing on chassis-internal metainformation such as
622 * QOS profiles, etc..
624 #define DLT_JUNIPER_MONITOR 164
627 * BACnet MS/TP frames.
629 #define DLT_BACNET_MS_TP 165
632 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>.
634 * This is used in some OSes to allow a kernel socket filter to distinguish
635 * between incoming and outgoing packets, on a socket intended to
636 * supply pppd with outgoing packets so it can do dial-on-demand and
637 * hangup-on-lack-of-demand; incoming packets are filtered out so they
638 * don't cause pppd to hold the connection up (you don't want random
639 * input packets such as port scans, packets from old lost connections,
640 * etc. to force the connection to stay up).
642 * The first byte of the PPP header (0xff03) is modified to accommodate
643 * the direction - 0x00 = IN, 0x01 = OUT.
645 #define DLT_PPP_PPPD 166
648 * Names for backwards compatibility with older versions of some PPP
649 * software; new software should use DLT_PPP_PPPD.
651 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD
652 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD
655 * Juniper-private data link type, as per request from
656 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
657 * for passing on chassis-internal metainformation such as
658 * QOS profiles, cookies, etc..
660 #define DLT_JUNIPER_PPPOE 167
661 #define DLT_JUNIPER_PPPOE_ATM 168
663 #define DLT_GPRS_LLC 169 /* GPRS LLC */
664 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */
665 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */
668 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line
669 * monitoring equipment.
671 #define DLT_GCOM_T1E1 172
672 #define DLT_GCOM_SERIAL 173
675 * Juniper-private data link type, as per request from
676 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used
677 * for internal communication to Physical Interface Cards (PIC)
679 #define DLT_JUNIPER_PIC_PEER 174
682 * Link types requested by Gregor Maier <gregor@endace.com> of Endace
683 * Measurement Systems. They add an ERF header (see
684 * https://www.endace.com/support/EndaceRecordFormat.pdf) in front of
685 * the link-layer header.
687 #define DLT_ERF_ETH 175 /* Ethernet */
688 #define DLT_ERF_POS 176 /* Packet-over-SONET */
691 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD
692 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header
693 * includes additional information before the LAPD header, so it's
694 * not necessarily a generic LAPD header.
696 #define DLT_LINUX_LAPD 177
699 * Juniper-private data link type, as per request from
700 * Hannes Gredler <hannes@juniper.net>.
701 * The DLT_ are used for prepending meta-information
702 * like interface index, interface name
703 * before standard Ethernet, PPP, Frelay & C-HDLC Frames
705 #define DLT_JUNIPER_ETHER 178
706 #define DLT_JUNIPER_PPP 179
707 #define DLT_JUNIPER_FRELAY 180
708 #define DLT_JUNIPER_CHDLC 181
711 * Multi Link Frame Relay (FRF.16)
716 * Juniper-private data link type, as per request from
717 * Hannes Gredler <hannes@juniper.net>.
718 * The DLT_ is used for internal communication with a
719 * voice Adapter Card (PIC)
721 #define DLT_JUNIPER_VP 183
725 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
726 * Every frame contains a 32bit A429 label.
727 * More documentation on Arinc 429 can be found at
728 * https://web.archive.org/web/20040616233302/https://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
733 * Arinc 653 Interpartition Communication messages.
734 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
735 * Please refer to the A653-1 standard for more information.
737 #define DLT_A653_ICM 185
740 * This used to be "USB packets, beginning with a USB setup header;
741 * requested by Paolo Abeni <paolo.abeni@email.it>."
743 * However, that header didn't work all that well - it left out some
744 * useful information - and was abandoned in favor of the DLT_USB_LINUX
747 * This is now used by FreeBSD for its BPF taps for USB; that has its
748 * own headers. So it is written, so it is done.
750 * For source-code compatibility, we also define DLT_USB to have this
751 * value. We do it numerically so that, if code that includes this
752 * file (directly or indirectly) also includes an OS header that also
753 * defines DLT_USB as 186, we don't get a redefinition warning.
754 * (NetBSD 7 does that.)
756 #define DLT_USB_FREEBSD 186
760 * Bluetooth HCI UART transport layer (part H:4); requested by
763 #define DLT_BLUETOOTH_HCI_H4 187
766 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz
767 * <cruz_petagay@bah.com>.
769 #define DLT_IEEE802_16_MAC_CPS 188
772 * USB packets, beginning with a Linux USB header; requested by
773 * Paolo Abeni <paolo.abeni@email.it>.
775 #define DLT_USB_LINUX 189
778 * Controller Area Network (CAN) v. 2.0B packets.
779 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
780 * Used to dump CAN packets coming from a CAN Vector board.
781 * More documentation on the CAN v2.0B frames can be found at
782 * http://www.can-cia.org/downloads/?269
784 #define DLT_CAN20B 190
787 * IEEE 802.15.4, with address fields padded, as is done by Linux
788 * drivers; requested by Juergen Schimmer.
790 #define DLT_IEEE802_15_4_LINUX 191
793 * Per Packet Information encapsulated packets.
794 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
799 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header;
800 * requested by Charles Clancy.
802 #define DLT_IEEE802_16_MAC_CPS_RADIO 193
805 * Juniper-private data link type, as per request from
806 * Hannes Gredler <hannes@juniper.net>.
807 * The DLT_ is used for internal communication with a
808 * integrated service module (ISM).
810 #define DLT_JUNIPER_ISM 194
813 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
814 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>.
815 * For this one, we expect the FCS to be present at the end of the frame;
816 * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used.
818 * We keep the name DLT_IEEE802_15_4 as an alias for backwards
819 * compatibility, but, again, this should *only* be used for 802.15.4
820 * frames that include the FCS.
822 #define DLT_IEEE802_15_4_WITHFCS 195
823 #define DLT_IEEE802_15_4 DLT_IEEE802_15_4_WITHFCS
826 * Various link-layer types, with a pseudo-header, for SITA
827 * (https://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com).
832 * Various link-layer types, with a pseudo-header, for Endace DAG cards;
833 * encapsulates Endace ERF records. Requested by Stephen Donnelly
834 * <stephen@endace.com>.
839 * Special header prepended to Ethernet packets when capturing from a
840 * u10 Networks board. Requested by Phil Mulholland
841 * <phil@u10networks.com>.
843 #define DLT_RAIF1 198
846 * IPMB packet for IPMI, beginning with a 2-byte header, followed by
847 * the I2C slave address, followed by the netFn and LUN, etc..
848 * Requested by Chanthy Toeung <chanthy.toeung@ca.kontron.com>.
850 * XXX - this used to be called DLT_IPMB, back when we got the
851 * impression from the email thread requesting it that the packet
852 * had no extra 2-byte header. We've renamed it; if anybody used
853 * DLT_IPMB and assumed no 2-byte header, this will cause the compile
854 * to fail, at which point we'll have to figure out what to do about
855 * the two header types using the same DLT_/LINKTYPE_ value. If that
856 * doesn't happen, we'll assume nobody used it and that the redefinition
859 #define DLT_IPMB_KONTRON 199
862 * Juniper-private data link type, as per request from
863 * Hannes Gredler <hannes@juniper.net>.
864 * The DLT_ is used for capturing data on a secure tunnel interface.
866 #define DLT_JUNIPER_ST 200
869 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header
870 * that includes direction information; requested by Paolo Abeni.
872 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201
875 * AX.25 packet with a 1-byte KISS header; see
877 * http://www.ax25.net/kiss.htm
879 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>.
881 #define DLT_AX25_KISS 202
884 * LAPD packets from an ISDN channel, starting with the address field,
885 * with no pseudo-header.
886 * Requested by Varuna De Silva <varunax@gmail.com>.
891 * PPP, with a one-byte direction pseudo-header prepended - zero means
892 * "received by this host", non-zero (any non-zero value) means "sent by
893 * this host" - as per Will Barker <w.barker@zen.co.uk>.
895 * Don't confuse this with DLT_PPP_WITH_DIRECTION, which is an old
896 * name for what is now called DLT_PPP_PPPD.
898 #define DLT_PPP_WITH_DIR 204
901 * Cisco HDLC, with a one-byte direction pseudo-header prepended - zero
902 * means "received by this host", non-zero (any non-zero value) means
903 * "sent by this host" - as per Will Barker <w.barker@zen.co.uk>.
905 #define DLT_C_HDLC_WITH_DIR 205
908 * Frame Relay, with a one-byte direction pseudo-header prepended - zero
909 * means "received by this host" (DCE -> DTE), non-zero (any non-zero
910 * value) means "sent by this host" (DTE -> DCE) - as per Will Barker
911 * <w.barker@zen.co.uk>.
913 #define DLT_FRELAY_WITH_DIR 206
916 * LAPB, with a one-byte direction pseudo-header prepended - zero means
917 * "received by this host" (DCE -> DTE), non-zero (any non-zero value)
918 * means "sent by this host" (DTE -> DCE)- as per Will Barker
919 * <w.barker@zen.co.uk>.
921 #define DLT_LAPB_WITH_DIR 207
924 * 208 is reserved for an as-yet-unspecified proprietary link-layer
925 * type, as requested by Will Barker.
929 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman
930 * <avn@pigeonpoint.com>.
932 #define DLT_IPMB_LINUX 209
935 * FlexRay automotive bus - http://www.flexray.com/ - as requested
936 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
938 #define DLT_FLEXRAY 210
941 * Media Oriented Systems Transport (MOST) bus for multimedia
942 * transport - https://www.mostcooperation.com/ - as requested
943 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
948 * Local Interconnect Network (LIN) bus for vehicle networks -
949 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber
950 * <hannes.kaelber@x2e.de>.
955 * X2E-private data link type used for serial line capture,
956 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
958 #define DLT_X2E_SERIAL 213
961 * X2E-private data link type used for the Xoraya data logger
962 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
964 #define DLT_X2E_XORAYA 214
967 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
968 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets
969 * of 0 as preamble, one octet of SFD, one octet of frame length+
970 * reserved bit, and then the MAC-layer data, starting with the
971 * frame control field).
973 * Requested by Max Filippov <jcmvbkbc@gmail.com>.
975 #define DLT_IEEE802_15_4_NONASK_PHY 215
978 * David Gibson <david@gibson.dropbear.id.au> requested this for
979 * captures from the Linux kernel /dev/input/eventN devices. This
980 * is used to communicate keystrokes and mouse movements from the
981 * Linux kernel to display systems, such as Xorg.
983 #define DLT_LINUX_EVDEV 216
986 * GSM Um and Abis interfaces, preceded by a "gsmtap" header.
988 * Requested by Harald Welte <laforge@gnumonks.org>.
990 #define DLT_GSMTAP_UM 217
991 #define DLT_GSMTAP_ABIS 218
994 * MPLS, with an MPLS label as the link-layer header.
995 * Requested by Michele Marchetto <michele@openbsd.org> on behalf
1001 * USB packets, beginning with a Linux USB header, with the USB header
1002 * padded to 64 bytes; required for memory-mapped access.
1004 #define DLT_USB_LINUX_MMAPPED 220
1007 * DECT packets, with a pseudo-header; requested by
1008 * Matthias Wenzel <tcpdump@mazzoo.de>.
1010 #define DLT_DECT 221
1013 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov>
1014 * Date: Mon, 11 May 2009 11:18:30 -0500
1016 * DLT_AOS. We need it for AOS Space Data Link Protocol.
1017 * I have already written dissectors for but need an OK from
1018 * legal before I can submit a patch.
1024 * Wireless HART (Highway Addressable Remote Transducer)
1025 * From the HART Communication Foundation
1028 * Requested by Sam Roberts <vieuxtech@gmail.com>.
1030 #define DLT_WIHART 223
1033 * Fibre Channel FC-2 frames, beginning with a Frame_Header.
1034 * Requested by Kahou Lei <kahou82@gmail.com>.
1036 #define DLT_FC_2 224
1039 * Fibre Channel FC-2 frames, beginning with an encoding of the
1040 * SOF, and ending with an encoding of the EOF.
1042 * The encodings represent the frame delimiters as 4-byte sequences
1043 * representing the corresponding ordered sets, with K28.5
1044 * represented as 0xBC, and the D symbols as the corresponding
1045 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2,
1046 * is represented as 0xBC 0xB5 0x55 0x55.
1048 * Requested by Kahou Lei <kahou82@gmail.com>.
1050 #define DLT_FC_2_WITH_FRAME_DELIMS 225
1053 * Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>.
1055 * The pseudo-header starts with a one-byte version number; for version 2,
1056 * the pseudo-header is:
1058 * struct dl_ipnetinfo {
1059 * uint8_t dli_version;
1060 * uint8_t dli_family;
1061 * uint16_t dli_htype;
1062 * uint32_t dli_pktlen;
1063 * uint32_t dli_ifindex;
1064 * uint32_t dli_grifindex;
1065 * uint32_t dli_zsrc;
1066 * uint32_t dli_zdst;
1069 * dli_version is 2 for the current version of the pseudo-header.
1071 * dli_family is a Solaris address family value, so it's 2 for IPv4
1074 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing
1075 * packets, and 2 for packets arriving from another zone on the same
1078 * dli_pktlen is the length of the packet data following the pseudo-header
1079 * (so the captured length minus dli_pktlen is the length of the
1080 * pseudo-header, assuming the entire pseudo-header was captured).
1082 * dli_ifindex is the interface index of the interface on which the
1085 * dli_grifindex is the group interface index number (for IPMP interfaces).
1087 * dli_zsrc is the zone identifier for the source of the packet.
1089 * dli_zdst is the zone identifier for the destination of the packet.
1091 * A zone number of 0 is the global zone; a zone number of 0xffffffff
1092 * means that the packet arrived from another host on the network, not
1093 * from another zone on the same machine.
1095 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates
1096 * which of those it is.
1098 #define DLT_IPNET 226
1101 * CAN (Controller Area Network) frames, with a pseudo-header as supplied
1102 * by Linux SocketCAN, and with multi-byte numerical fields in that header
1103 * in big-endian byte order.
1105 * See Documentation/networking/can.txt in the Linux source.
1107 * Requested by Felix Obenhuber <felix@obenhuber.de>.
1109 #define DLT_CAN_SOCKETCAN 227
1112 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies
1113 * whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>.
1115 #define DLT_IPV4 228
1116 #define DLT_IPV6 229
1119 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
1120 * nothing), and with no FCS at the end of the frame; requested by
1121 * Jon Smirl <jonsmirl@gmail.com>.
1123 #define DLT_IEEE802_15_4_NOFCS 230
1128 * https://www.freedesktop.org/wiki/Software/dbus
1132 * https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
1134 * starting with the endianness flag, followed by the message type, etc.,
1135 * but without the authentication handshake before the message sequence:
1137 * https://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol
1139 * Requested by Martin Vidner <martin@vidner.net>.
1141 #define DLT_DBUS 231
1144 * Juniper-private data link type, as per request from
1145 * Hannes Gredler <hannes@juniper.net>.
1147 #define DLT_JUNIPER_VS 232
1148 #define DLT_JUNIPER_SRX_E2E 233
1149 #define DLT_JUNIPER_FIBRECHANNEL 234
1152 * DVB-CI (DVB Common Interface for communication between a PC Card
1153 * module and a DVB receiver). See
1155 * https://www.kaiser.cx/pcap-dvbci.html
1157 * for the specification.
1159 * Requested by Martin Kaiser <martin@kaiser.cx>.
1161 #define DLT_DVB_CI 235
1164 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but
1165 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel
1166 * <hans-christoph.schemmel@cinterion.com>.
1168 #define DLT_MUX27010 236
1171 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray
1172 * <barisdemiray@gmail.com>.
1174 #define DLT_STANAG_5066_D_PDU 237
1177 * Juniper-private data link type, as per request from
1178 * Hannes Gredler <hannes@juniper.net>.
1180 #define DLT_JUNIPER_ATM_CEMIC 238
1183 * NetFilter LOG messages
1184 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets)
1186 * Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl>
1188 #define DLT_NFLOG 239
1191 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
1192 * for Ethernet packets with a 4-byte pseudo-header and always
1193 * with the payload including the FCS, as supplied by their
1194 * netANALYZER hardware and software.
1196 * Requested by Holger P. Frommer <HPfrommer@hilscher.com>
1198 #define DLT_NETANALYZER 240
1201 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
1202 * for Ethernet packets with a 4-byte pseudo-header and FCS and
1203 * with the Ethernet header preceded by 7 bytes of preamble and
1204 * 1 byte of SFD, as supplied by their netANALYZER hardware and
1207 * Requested by Holger P. Frommer <HPfrommer@hilscher.com>
1209 #define DLT_NETANALYZER_TRANSPARENT 241
1212 * IP-over-InfiniBand, as specified by RFC 4391.
1214 * Requested by Petr Sumbera <petr.sumbera@oracle.com>.
1216 #define DLT_IPOIB 242
1219 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0).
1221 * Requested by Guy Martin <gmsoft@tuxicoman.be>.
1223 #define DLT_MPEG_2_TS 243
1226 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as
1227 * used by their ng40 protocol tester.
1229 * Requested by Jens Grimmer <jens.grimmer@ng4t.com>.
1231 #define DLT_NG40 244
1234 * Pseudo-header giving adapter number and flags, followed by an NFC
1235 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU,
1236 * as specified by NFC Forum Logical Link Control Protocol Technical
1237 * Specification LLCP 1.1.
1239 * Requested by Mike Wakerly <mikey@google.com>.
1241 #define DLT_NFC_LLCP 245
1244 * 246 is used as LINKTYPE_PFSYNC; do not use it for any other purpose.
1246 * DLT_PFSYNC has different values on different platforms, and all of
1247 * them collide with something used elsewhere. On platforms that
1248 * don't already define it, define it as 246.
1250 #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__)
1251 #define DLT_PFSYNC 246
1255 * Raw InfiniBand packets, starting with the Local Routing Header.
1257 * Requested by Oren Kladnitsky <orenk@mellanox.com>.
1259 #define DLT_INFINIBAND 247
1262 * SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6).
1264 * Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>.
1266 #define DLT_SCTP 248
1269 * USB packets, beginning with a USBPcap header.
1271 * Requested by Tomasz Mon <desowin@gmail.com>
1273 #define DLT_USBPCAP 249
1276 * Schweitzer Engineering Laboratories "RTAC" product serial-line
1279 * Requested by Chris Bontje <chris_bontje@selinc.com>.
1281 #define DLT_RTAC_SERIAL 250
1284 * Bluetooth Low Energy air interface link-layer packets.
1286 * Requested by Mike Kershaw <dragorn@kismetwireless.net>.
1288 #define DLT_BLUETOOTH_LE_LL 251
1291 * DLT type for upper-protocol layer PDU saves from Wireshark.
1293 * the actual contents are determined by two TAGs, one or more of
1294 * which is stored with each packet:
1296 * EXP_PDU_TAG_DISSECTOR_NAME the name of the Wireshark dissector
1297 * that can make sense of the data stored.
1299 * EXP_PDU_TAG_HEUR_DISSECTOR_NAME the name of the Wireshark heuristic
1300 * dissector that can make sense of the
1303 #define DLT_WIRESHARK_UPPER_PDU 252
1306 * DLT type for the netlink protocol (nlmon devices).
1308 #define DLT_NETLINK 253
1311 * Bluetooth Linux Monitor headers for the BlueZ stack.
1313 #define DLT_BLUETOOTH_LINUX_MONITOR 254
1316 * Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as
1317 * captured by Ubertooth.
1319 #define DLT_BLUETOOTH_BREDR_BB 255
1322 * Bluetooth Low Energy link layer packets, as captured by Ubertooth.
1324 #define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256
1327 * PROFIBUS data link layer.
1329 #define DLT_PROFIBUS_DL 257
1332 * Apple's DLT_PKTAP headers.
1334 * Sadly, the folks at Apple either had no clue that the DLT_USERn values
1335 * are for internal use within an organization and partners only, and
1336 * didn't know that the right way to get a link-layer header type is to
1337 * ask tcpdump.org for one, or knew and didn't care, so they just
1338 * used DLT_USER2, which causes problems for everything except for
1339 * their version of tcpdump.
1341 * So I'll just give them one; hopefully this will show up in a
1342 * libpcap release in time for them to get this into 10.10 Big Sur
1343 * or whatever Mavericks' successor is called. LINKTYPE_PKTAP
1344 * will be 258 *even on macOS*; that is *intentional*, so that
1345 * PKTAP files look the same on *all* OSes (different OSes can have
1346 * different numerical values for a given DLT_, but *MUST NOT* have
1347 * different values for what goes in a file, as files can be moved
1350 * When capturing, on a system with a Darwin-based OS, on a device
1351 * that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this
1352 * version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP,
1353 * and that will continue to be DLT_USER2 on Darwin-based OSes. That way,
1354 * binary compatibility with Mavericks is preserved for programs using
1355 * this version of libpcap. This does mean that if you were using
1356 * DLT_USER2 for some capture device on macOS, you can't do so with
1357 * this version of libpcap, just as you can't with Apple's libpcap -
1358 * on macOS, they define DLT_PKTAP to be DLT_USER2, so programs won't
1359 * be able to distinguish between PKTAP and whatever you were using
1362 * If the program saves the capture to a file using this version of
1363 * libpcap's pcap_dump code, the LINKTYPE_ value in the file will be
1364 * LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes.
1365 * That way, the file will *not* be a DLT_USER2 file. That means
1366 * that the latest version of tcpdump, when built with this version
1367 * of libpcap, and sufficiently recent versions of Wireshark will
1368 * be able to read those files and interpret them correctly; however,
1369 * Apple's version of tcpdump in OS X 10.9 won't be able to handle
1370 * them. (Hopefully, Apple will pick up this version of libpcap,
1371 * and the corresponding version of tcpdump, so that tcpdump will
1372 * be able to handle the old LINKTYPE_USER2 captures *and* the new
1373 * LINKTYPE_PKTAP captures.)
1376 #define DLT_PKTAP DLT_USER2
1378 #define DLT_PKTAP 258
1382 * Ethernet packets preceded by a header giving the last 6 octets
1383 * of the preamble specified by 802.3-2012 Clause 65, section
1384 * 65.1.3.2 "Transmit".
1386 #define DLT_EPON 259
1389 * IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format"
1390 * in the PICMG HPM.2 specification.
1392 #define DLT_IPMI_HPM_2 260
1395 * per Joshua Wright <jwright@hasborg.com>, formats for Zwave captures.
1397 #define DLT_ZWAVE_R1_R2 261
1398 #define DLT_ZWAVE_R3 262
1401 * per Steve Karg <skarg@users.sourceforge.net>, formats for Wattstopper
1402 * Digital Lighting Management room bus serial protocol captures.
1404 #define DLT_WATTSTOPPER_DLM 263
1407 * ISO 14443 contactless smart card messages.
1409 #define DLT_ISO_14443 264
1412 * Radio data system (RDS) groups. IEC 62106.
1413 * Per Jonathan Brucker <jonathan.brucke@gmail.com>.
1418 * USB packets, beginning with a Darwin (macOS, etc.) header.
1420 #define DLT_USB_DARWIN 266
1423 * OpenBSD DLT_OPENFLOW.
1425 #define DLT_OPENFLOW 267
1428 * SDLC frames containing SNA PDUs.
1430 #define DLT_SDLC 268
1433 * per "Selvig, Bjorn" <b.selvig@ti.com> used for
1434 * TI protocol sniffer.
1436 #define DLT_TI_LLN_SNIFFER 269
1439 * per: Erik de Jong <erikdejong at gmail.com> for
1440 * https://github.com/eriknl/LoRaTap/releases/tag/v0.1
1442 #define DLT_LORATAP 270
1445 * per: Stefanha at gmail.com for
1446 * https://lists.sandelman.ca/pipermail/tcpdump-workers/2017-May/000772.html
1447 * and: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/vsockmon.h
1448 * for: https://qemu-project.org/Features/VirtioVsock
1450 #define DLT_VSOCK 271
1453 * Nordic Semiconductor Bluetooth LE sniffer.
1455 #define DLT_NORDIC_BLE 272
1458 * Excentis DOCSIS 3.1 RF sniffer (XRA-31)
1459 * per: bruno.verstuyft at excentis.com
1460 * https://www.xra31.com/xra-header
1462 #define DLT_DOCSIS31_XRA31 273
1465 * mPackets, as specified by IEEE 802.3br Figure 99-4, starting
1466 * with the preamble and always ending with a CRC field.
1468 #define DLT_ETHERNET_MPACKET 274
1471 * DisplayPort AUX channel monitoring data as specified by VESA
1472 * DisplayPort(DP) Standard preceded by a pseudo-header.
1473 * per dirk.eibach at gdsys.cc
1475 #define DLT_DISPLAYPORT_AUX 275
1478 * Linux cooked sockets v2.
1480 #define DLT_LINUX_SLL2 276
1483 * Sercos Monitor, per Manuel Jacob <manuel.jacob at steinbeis-stg.de>
1485 #define DLT_SERCOS_MONITOR 277
1488 * OpenVizsla http://openvizsla.org is open source USB analyzer hardware.
1489 * It consists of FPGA with attached USB phy and FTDI chip for streaming
1490 * the data to the host PC.
1492 * Current OpenVizsla data encapsulation format is described here:
1493 * https://github.com/matwey/libopenvizsla/wiki/OpenVizsla-protocol-description
1496 #define DLT_OPENVIZSLA 278
1499 * The Elektrobit High Speed Capture and Replay (EBHSCR) protocol is produced
1500 * by a PCIe Card for interfacing high speed automotive interfaces.
1502 * The specification for this frame format can be found at:
1503 * https://www.elektrobit.com/ebhscr
1505 * for Guenter.Ebermann at elektrobit.com
1508 #define DLT_EBHSCR 279
1511 * The https://fd.io vpp graph dispatch tracer produces pcap trace files
1512 * in the format documented here:
1513 * https://fdio-vpp.readthedocs.io/en/latest/gettingstarted/developers/vnet.html#graph-dispatcher-pcap-tracing
1515 #define DLT_VPP_DISPATCH 280
1518 * Broadcom Ethernet switches (ROBO switch) 4 bytes proprietary tagging format.
1520 #define DLT_DSA_TAG_BRCM 281
1521 #define DLT_DSA_TAG_BRCM_PREPEND 282
1524 * IEEE 802.15.4 with pseudo-header and optional meta-data TLVs, PHY payload
1525 * exactly as it appears in the spec (no padding, no nothing), and FCS if
1526 * specified by FCS Type TLV; requested by James Ko <jck@exegin.com>.
1527 * Specification at https://github.com/jkcko/ieee802.15.4-tap
1529 #define DLT_IEEE802_15_4_TAP 283
1532 * Marvell (Ethertype) Distributed Switch Architecture proprietary tagging format.
1534 #define DLT_DSA_TAG_DSA 284
1535 #define DLT_DSA_TAG_EDSA 285
1538 * Payload of lawful intercept packets using the ELEE protocol;
1539 * https://socket.hr/draft-dfranusic-opsawg-elee-00.xml
1540 * https://xml2rfc.tools.ietf.org/cgi-bin/xml2rfc.cgi?url=https://socket.hr/draft-dfranusic-opsawg-elee-00.xml&modeAsFormat=html/ascii
1542 #define DLT_ELEE 286
1545 * Serial frames transmitted between a host and a Z-Wave chip.
1547 #define DLT_Z_WAVE_SERIAL 287
1550 * USB 2.0, 1.1, and 1.0 packets as transmitted over the cable.
1552 #define DLT_USB_2_0 288
1555 * ATSC Link-Layer Protocol (A/330) packets.
1557 #define DLT_ATSC_ALP 289
1560 * In case the code that includes this file (directly or indirectly)
1561 * has also included OS files that happen to define DLT_MATCHING_MAX,
1562 * with a different value (perhaps because that OS hasn't picked up
1563 * the latest version of our DLT definitions), we undefine the
1564 * previous value of DLT_MATCHING_MAX.
1566 #ifdef DLT_MATCHING_MAX
1567 #undef DLT_MATCHING_MAX
1569 #define DLT_MATCHING_MAX 289 /* highest value in the "matching" range */
1572 * DLT and savefile link type values are split into a class and
1573 * a member of that class. A class value of 0 indicates a regular
1574 * DLT_/LINKTYPE_ value.
1576 #define DLT_CLASS(x) ((x) & 0x03ff0000)
1579 * NetBSD-specific generic "raw" link type. The class value indicates
1580 * that this is the generic raw type, and the lower 16 bits are the
1581 * address family we're dealing with. Those values are NetBSD-specific;
1582 * do not assume that they correspond to AF_ values for your operating
1585 #define DLT_CLASS_NETBSD_RAWAF 0x02240000
1586 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af))
1587 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff)
1588 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF)
1590 #endif /* !_NET_DLT_H_ */