libpcap  1.10.1
About: libpcap is a packet filter library used by tools like tcpdump.
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dlt.h
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1 /*-
2  * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
3  * The Regents of the University of California. All rights reserved.
4  *
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
8  * Berkeley Laboratory.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
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.
21  *
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
32  * SUCH DAMAGE.
33  *
34  * @(#)bpf.h 7.1 (Berkeley) 5/7/91
35  */
36 
37 #ifndef lib_pcap_dlt_h
38 #define lib_pcap_dlt_h
39 
40 /*
41  * Link-layer header type codes.
42  *
43  * Do *NOT* add new values to this list without asking
44  * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run
45  * the risk of using a value that's already being used for some other
46  * purpose, and of having tools that read libpcap-format captures not
47  * being able to handle captures with your new DLT_ value, with no hope
48  * that they will ever be changed to do so (as that would destroy their
49  * ability to read captures using that value for that other purpose).
50  *
51  * See
52  *
53  * https://www.tcpdump.org/linktypes.html
54  *
55  * for detailed descriptions of some of these link-layer header types.
56  */
57 
58 /*
59  * These are the types that are the same on all platforms, and that
60  * have been defined by <net/bpf.h> for ages.
61  */
62 #define DLT_NULL 0 /* BSD loopback encapsulation */
63 #define DLT_EN10MB 1 /* Ethernet (10Mb) */
64 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */
65 #define DLT_AX25 3 /* Amateur Radio AX.25 */
66 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */
67 #define DLT_CHAOS 5 /* Chaos */
68 #define DLT_IEEE802 6 /* 802.5 Token Ring */
69 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */
70 #define DLT_SLIP 8 /* Serial Line IP */
71 #define DLT_PPP 9 /* Point-to-point Protocol */
72 #define DLT_FDDI 10 /* FDDI */
73 
74 /*
75  * These are types that are different on some platforms, and that
76  * have been defined by <net/bpf.h> for ages. We use #ifdefs to
77  * detect the BSDs that define them differently from the traditional
78  * libpcap <net/bpf.h>
79  *
80  * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS,
81  * but I don't know what the right #define is for BSD/OS.
82  */
83 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */
84 
85 #ifdef __OpenBSD__
86 #define DLT_RAW 14 /* raw IP */
87 #else
88 #define DLT_RAW 12 /* raw IP */
89 #endif
90 
91 /*
92  * Given that the only OS that currently generates BSD/OS SLIP or PPP
93  * is, well, BSD/OS, arguably everybody should have chosen its values
94  * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they
95  * didn't. So it goes.
96  */
97 #if defined(__NetBSD__) || defined(__FreeBSD__)
98 #ifndef DLT_SLIP_BSDOS
99 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */
100 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */
101 #endif
102 #else
103 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */
104 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */
105 #endif
106 
107 /*
108  * 17 was used for DLT_PFLOG in OpenBSD; it no longer is.
109  *
110  * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG
111  * as 117 so that pflog captures would use a link-layer header type
112  * value that didn't collide with any other values. On all
113  * platforms other than OpenBSD, we defined DLT_PFLOG as 117,
114  * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG.
115  *
116  * OpenBSD eventually switched to using 117 for DLT_PFLOG as well.
117  *
118  * Don't use 17 for anything else.
119  */
120 
121 /*
122  * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and
123  * macOS; don't use it for anything else. (FreeBSD uses 121, which
124  * collides with DLT_HHDLC, even though it doesn't use 18 for
125  * anything and doesn't appear to have ever used it for anything.)
126  *
127  * We define it as 18 on those platforms; it is, unfortunately, used
128  * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC
129  * in general. As the packet format for it, like that for
130  * DLT_PFLOG, is not only OS-dependent but OS-version-dependent,
131  * we don't support printing it in tcpdump except on OSes that
132  * have the relevant header files, so it's not that useful on
133  * other platforms.
134  */
135 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__)
136 #define DLT_PFSYNC 18
137 #endif
138 
139 #define DLT_ATM_CLIP 19 /* Linux Classical IP over ATM */
140 
141 /*
142  * Apparently Redback uses this for its SmartEdge 400/800. I hope
143  * nobody else decided to use it, too.
144  */
145 #define DLT_REDBACK_SMARTEDGE 32
146 
147 /*
148  * These values are defined by NetBSD; other platforms should refrain from
149  * using them for other purposes, so that NetBSD savefiles with link
150  * types of 50 or 51 can be read as this type on all platforms.
151  */
152 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */
153 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */
154 
155 /*
156  * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses
157  * a link-layer type of 99 for the tcpdump it supplies. The link-layer
158  * header has 6 bytes of unknown data, something that appears to be an
159  * Ethernet type, and 36 bytes that appear to be 0 in at least one capture
160  * I've seen.
161  */
162 #define DLT_SYMANTEC_FIREWALL 99
163 
164 /*
165  * Values between 100 and 103 are used in capture file headers as
166  * link-layer header type LINKTYPE_ values corresponding to DLT_ types
167  * that differ between platforms; don't use those values for new DLT_
168  * new types.
169  */
170 
171 /*
172  * Values starting with 104 are used for newly-assigned link-layer
173  * header type values; for those link-layer header types, the DLT_
174  * value returned by pcap_datalink() and passed to pcap_open_dead(),
175  * and the LINKTYPE_ value that appears in capture files, are the
176  * same.
177  *
178  * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is
179  * the highest such value.
180  */
181 #define DLT_MATCHING_MIN 104
182 
183 /*
184  * This value was defined by libpcap 0.5; platforms that have defined
185  * it with a different value should define it here with that value -
186  * a link type of 104 in a save file will be mapped to DLT_C_HDLC,
187  * whatever value that happens to be, so programs will correctly
188  * handle files with that link type regardless of the value of
189  * DLT_C_HDLC.
190  *
191  * The name DLT_C_HDLC was used by BSD/OS; we use that name for source
192  * compatibility with programs written for BSD/OS.
193  *
194  * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
195  * for source compatibility with programs written for libpcap 0.5.
196  */
197 #define DLT_C_HDLC 104 /* Cisco HDLC */
198 #define DLT_CHDLC DLT_C_HDLC
199 
200 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */
201 
202 /*
203  * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW,
204  * except when it isn't. (I.e., sometimes it's just raw IP, and
205  * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL,
206  * so that we don't have to worry about the link-layer header.)
207  */
208 
209 /*
210  * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides
211  * with other values.
212  * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header
213  * (DLCI, etc.).
214  */
215 #define DLT_FRELAY 107
216 
217 /*
218  * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
219  * that the AF_ type in the link-layer header is in network byte order.
220  *
221  * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so
222  * we don't use 12 for it in OSes other than OpenBSD.
223  */
224 #ifdef __OpenBSD__
225 #define DLT_LOOP 12
226 #else
227 #define DLT_LOOP 108
228 #endif
229 
230 /*
231  * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
232  * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other
233  * than OpenBSD.
234  */
235 #ifdef __OpenBSD__
236 #define DLT_ENC 13
237 #else
238 #define DLT_ENC 109
239 #endif
240 
241 /*
242  * Values between 110 and 112 are reserved for use in capture file headers
243  * as link-layer types corresponding to DLT_ types that might differ
244  * between platforms; don't use those values for new DLT_ types
245  * other than the corresponding DLT_ types.
246  */
247 
248 /*
249  * Linux cooked sockets.
250  */
251 #define DLT_LINUX_SLL 113
252 
253 /*
254  * Apple LocalTalk hardware.
255  */
256 #define DLT_LTALK 114
257 
258 /*
259  * Acorn Econet.
260  */
261 #define DLT_ECONET 115
262 
263 /*
264  * Reserved for use with OpenBSD ipfilter.
265  */
266 #define DLT_IPFILTER 116
267 
268 /*
269  * OpenBSD DLT_PFLOG.
270  */
271 #define DLT_PFLOG 117
272 
273 /*
274  * Registered for Cisco-internal use.
275  */
276 #define DLT_CISCO_IOS 118
277 
278 /*
279  * For 802.11 cards using the Prism II chips, with a link-layer
280  * header including Prism monitor mode information plus an 802.11
281  * header.
282  */
283 #define DLT_PRISM_HEADER 119
284 
285 /*
286  * Reserved for Aironet 802.11 cards, with an Aironet link-layer header
287  * (see Doug Ambrisko's FreeBSD patches).
288  */
289 #define DLT_AIRONET_HEADER 120
290 
291 /*
292  * Sigh.
293  *
294  * 121 was reserved for Siemens HiPath HDLC on 2002-01-25, as
295  * requested by Tomas Kukosa.
296  *
297  * On 2004-02-25, a FreeBSD checkin to sys/net/bpf.h was made that
298  * assigned 121 as DLT_PFSYNC. In current versions, its libpcap
299  * does DLT_ <-> LINKTYPE_ mapping, mapping DLT_PFSYNC to a
300  * LINKTYPE_PFSYNC value of 246, so it should write out DLT_PFSYNC
301  * dump files with 246 as the link-layer header type. (Earlier
302  * versions might not have done mapping, in which case they would
303  * have written them out with a link-layer header type of 121.)
304  *
305  * OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC;
306  * its libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would
307  * write out DLT_PFSYNC dump files with use 18 as the link-layer
308  * header type.
309  *
310  * NetBSD, DragonFly BSD, and Darwin also use 18 for DLT_PFSYNC; in
311  * current versions, their libpcaps do DLT_ <-> LINKTYPE_ mapping,
312  * mapping DLT_PFSYNC to a LINKTYPE_PFSYNC value of 246, so they
313  * should write out DLT_PFSYNC dump files with 246 as the link-layer
314  * header type. (Earlier versions might not have done mapping,
315  * in which case they'd work the same way OpenBSD does, writing
316  * them out with a link-layer header type of 18.)
317  *
318  * We'll define DLT_PFSYNC as:
319  *
320  * 18 on NetBSD, OpenBSD, DragonFly BSD, and Darwin;
321  *
322  * 121 on FreeBSD;
323  *
324  * 246 everywhere else.
325  *
326  * We'll define DLT_HHDLC as 121 on everything except for FreeBSD;
327  * anybody who wants to compile, on FreeBSD, code that uses DLT_HHDLC
328  * is out of luck.
329  *
330  * We'll define LINKTYPE_PFSYNC as 246 on *all* platforms, so that
331  * savefiles written using *this* code won't use 18 or 121 for PFSYNC,
332  * they'll all use 246.
333  *
334  * Code that uses pcap_datalink() to determine the link-layer header
335  * type of a savefile won't, when built and run on FreeBSD, be able
336  * to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC capture
337  * files, as pcap_datalink() will give 121 for both of them. Code
338  * that doesn't, such as the code in Wireshark, will be able to
339  * distinguish between them.
340  *
341  * FreeBSD's libpcap won't map a link-layer header type of 18 - i.e.,
342  * DLT_PFSYNC files from OpenBSD and possibly older versions of NetBSD,
343  * DragonFly BSD, and macOS - to DLT_PFSYNC, so code built with FreeBSD's
344  * libpcap won't treat those files as DLT_PFSYNC files.
345  *
346  * Other libpcaps won't map a link-layer header type of 121 to DLT_PFSYNC;
347  * this means they can read DLT_HHDLC files, if any exist, but won't
348  * treat pcap files written by any older versions of FreeBSD libpcap that
349  * didn't map to 246 as DLT_PFSYNC files.
350  */
351 #ifdef __FreeBSD__
352 #define DLT_PFSYNC 121
353 #else
354 #define DLT_HHDLC 121
355 #endif
356 
357 /*
358  * This is for RFC 2625 IP-over-Fibre Channel.
359  *
360  * This is not for use with raw Fibre Channel, where the link-layer
361  * header starts with a Fibre Channel frame header; it's for IP-over-FC,
362  * where the link-layer header starts with an RFC 2625 Network_Header
363  * field.
364  */
365 #define DLT_IP_OVER_FC 122
366 
367 /*
368  * This is for Full Frontal ATM on Solaris with SunATM, with a
369  * pseudo-header followed by an AALn PDU.
370  *
371  * There may be other forms of Full Frontal ATM on other OSes,
372  * with different pseudo-headers.
373  *
374  * If ATM software returns a pseudo-header with VPI/VCI information
375  * (and, ideally, packet type information, e.g. signalling, ILMI,
376  * LANE, LLC-multiplexed traffic, etc.), it should not use
377  * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump
378  * and the like don't have to infer the presence or absence of a
379  * pseudo-header and the form of the pseudo-header.
380  */
381 #define DLT_SUNATM 123 /* Solaris+SunATM */
382 
383 /*
384  * Reserved as per request from Kent Dahlgren <kent@praesum.com>
385  * for private use.
386  */
387 #define DLT_RIO 124 /* RapidIO */
388 #define DLT_PCI_EXP 125 /* PCI Express */
389 #define DLT_AURORA 126 /* Xilinx Aurora link layer */
390 
391 /*
392  * Header for 802.11 plus a number of bits of link-layer information
393  * including radio information, used by some recent BSD drivers as
394  * well as the madwifi Atheros driver for Linux.
395  */
396 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */
397 
398 /*
399  * Reserved for the TZSP encapsulation, as per request from
400  * Chris Waters <chris.waters@networkchemistry.com>
401  * TZSP is a generic encapsulation for any other link type,
402  * which includes a means to include meta-information
403  * with the packet, e.g. signal strength and channel
404  * for 802.11 packets.
405  */
406 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */
407 
408 /*
409  * BSD's ARCNET headers have the source host, destination host,
410  * and type at the beginning of the packet; that's what's handed
411  * up to userland via BPF.
412  *
413  * Linux's ARCNET headers, however, have a 2-byte offset field
414  * between the host IDs and the type; that's what's handed up
415  * to userland via PF_PACKET sockets.
416  *
417  * We therefore have to have separate DLT_ values for them.
418  */
419 #define DLT_ARCNET_LINUX 129 /* ARCNET */
420 
421 /*
422  * Juniper-private data link types, as per request from
423  * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
424  * for passing on chassis-internal metainformation such as
425  * QOS profiles, etc..
426  */
427 #define DLT_JUNIPER_MLPPP 130
428 #define DLT_JUNIPER_MLFR 131
429 #define DLT_JUNIPER_ES 132
430 #define DLT_JUNIPER_GGSN 133
431 #define DLT_JUNIPER_MFR 134
432 #define DLT_JUNIPER_ATM2 135
433 #define DLT_JUNIPER_SERVICES 136
434 #define DLT_JUNIPER_ATM1 137
435 
436 /*
437  * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund
438  * <dieter@apple.com>. The header that's presented is an Ethernet-like
439  * header:
440  *
441  * #define FIREWIRE_EUI64_LEN 8
442  * struct firewire_header {
443  * u_char firewire_dhost[FIREWIRE_EUI64_LEN];
444  * u_char firewire_shost[FIREWIRE_EUI64_LEN];
445  * u_short firewire_type;
446  * };
447  *
448  * with "firewire_type" being an Ethernet type value, rather than,
449  * for example, raw GASP frames being handed up.
450  */
451 #define DLT_APPLE_IP_OVER_IEEE1394 138
452 
453 /*
454  * Various SS7 encapsulations, as per a request from Jeff Morriss
455  * <jeff.morriss[AT]ulticom.com> and subsequent discussions.
456  */
457 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */
458 #define DLT_MTP2 140 /* MTP2, without pseudo-header */
459 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */
460 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */
461 
462 /*
463  * DOCSIS MAC frames.
464  */
465 #define DLT_DOCSIS 143
466 
467 /*
468  * Linux-IrDA packets. Protocol defined at https://www.irda.org.
469  * Those packets include IrLAP headers and above (IrLMP...), but
470  * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy
471  * framing can be handled by the hardware and depend on the bitrate.
472  * This is exactly the format you would get capturing on a Linux-IrDA
473  * interface (irdaX), but not on a raw serial port.
474  * Note the capture is done in "Linux-cooked" mode, so each packet include
475  * a fake packet header (struct sll_header). This is because IrDA packet
476  * decoding is dependent on the direction of the packet (incoming or
477  * outgoing).
478  * When/if other platform implement IrDA capture, we may revisit the
479  * issue and define a real DLT_IRDA...
480  * Jean II
481  */
482 #define DLT_LINUX_IRDA 144
483 
484 /*
485  * Reserved for IBM SP switch and IBM Next Federation switch.
486  */
487 #define DLT_IBM_SP 145
488 #define DLT_IBM_SN 146
489 
490 /*
491  * Reserved for private use. If you have some link-layer header type
492  * that you want to use within your organization, with the capture files
493  * using that link-layer header type not ever be sent outside your
494  * organization, you can use these values.
495  *
496  * No libpcap release will use these for any purpose, nor will any
497  * tcpdump release use them, either.
498  *
499  * Do *NOT* use these in capture files that you expect anybody not using
500  * your private versions of capture-file-reading tools to read; in
501  * particular, do *NOT* use them in products, otherwise you may find that
502  * people won't be able to use tcpdump, or snort, or Ethereal, or... to
503  * read capture files from your firewall/intrusion detection/traffic
504  * monitoring/etc. appliance, or whatever product uses that DLT_ value,
505  * and you may also find that the developers of those applications will
506  * not accept patches to let them read those files.
507  *
508  * Also, do not use them if somebody might send you a capture using them
509  * for *their* private type and tools using them for *your* private type
510  * would have to read them.
511  *
512  * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value,
513  * as per the comment above, and use the type you're given.
514  */
515 #define DLT_USER0 147
516 #define DLT_USER1 148
517 #define DLT_USER2 149
518 #define DLT_USER3 150
519 #define DLT_USER4 151
520 #define DLT_USER5 152
521 #define DLT_USER6 153
522 #define DLT_USER7 154
523 #define DLT_USER8 155
524 #define DLT_USER9 156
525 #define DLT_USER10 157
526 #define DLT_USER11 158
527 #define DLT_USER12 159
528 #define DLT_USER13 160
529 #define DLT_USER14 161
530 #define DLT_USER15 162
531 
532 /*
533  * For future use with 802.11 captures - defined by AbsoluteValue
534  * Systems to store a number of bits of link-layer information
535  * including radio information:
536  *
537  * http://www.shaftnet.org/~pizza/software/capturefrm.txt
538  *
539  * but it might be used by some non-AVS drivers now or in the
540  * future.
541  */
542 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */
543 
544 /*
545  * Juniper-private data link type, as per request from
546  * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
547  * for passing on chassis-internal metainformation such as
548  * QOS profiles, etc..
549  */
550 #define DLT_JUNIPER_MONITOR 164
551 
552 /*
553  * BACnet MS/TP frames.
554  */
555 #define DLT_BACNET_MS_TP 165
556 
557 /*
558  * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>.
559  *
560  * This is used in some OSes to allow a kernel socket filter to distinguish
561  * between incoming and outgoing packets, on a socket intended to
562  * supply pppd with outgoing packets so it can do dial-on-demand and
563  * hangup-on-lack-of-demand; incoming packets are filtered out so they
564  * don't cause pppd to hold the connection up (you don't want random
565  * input packets such as port scans, packets from old lost connections,
566  * etc. to force the connection to stay up).
567  *
568  * The first byte of the PPP header (0xff03) is modified to accommodate
569  * the direction - 0x00 = IN, 0x01 = OUT.
570  */
571 #define DLT_PPP_PPPD 166
572 
573 /*
574  * Names for backwards compatibility with older versions of some PPP
575  * software; new software should use DLT_PPP_PPPD.
576  */
577 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD
578 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD
579 
580 /*
581  * Juniper-private data link type, as per request from
582  * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
583  * for passing on chassis-internal metainformation such as
584  * QOS profiles, cookies, etc..
585  */
586 #define DLT_JUNIPER_PPPOE 167
587 #define DLT_JUNIPER_PPPOE_ATM 168
588 
589 #define DLT_GPRS_LLC 169 /* GPRS LLC */
590 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */
591 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */
592 
593 /*
594  * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line
595  * monitoring equipment.
596  */
597 #define DLT_GCOM_T1E1 172
598 #define DLT_GCOM_SERIAL 173
599 
600 /*
601  * Juniper-private data link type, as per request from
602  * Hannes Gredler <hannes@juniper.net>. The DLT_ is used
603  * for internal communication to Physical Interface Cards (PIC)
604  */
605 #define DLT_JUNIPER_PIC_PEER 174
606 
607 /*
608  * Link types requested by Gregor Maier <gregor@endace.com> of Endace
609  * Measurement Systems. They add an ERF header (see
610  * https://www.endace.com/support/EndaceRecordFormat.pdf) in front of
611  * the link-layer header.
612  */
613 #define DLT_ERF_ETH 175 /* Ethernet */
614 #define DLT_ERF_POS 176 /* Packet-over-SONET */
615 
616 /*
617  * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD
618  * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header
619  * includes additional information before the LAPD header, so it's
620  * not necessarily a generic LAPD header.
621  */
622 #define DLT_LINUX_LAPD 177
623 
624 /*
625  * Juniper-private data link type, as per request from
626  * Hannes Gredler <hannes@juniper.net>.
627  * The DLT_ are used for prepending meta-information
628  * like interface index, interface name
629  * before standard Ethernet, PPP, Frelay & C-HDLC Frames
630  */
631 #define DLT_JUNIPER_ETHER 178
632 #define DLT_JUNIPER_PPP 179
633 #define DLT_JUNIPER_FRELAY 180
634 #define DLT_JUNIPER_CHDLC 181
635 
636 /*
637  * Multi Link Frame Relay (FRF.16)
638  */
639 #define DLT_MFR 182
640 
641 /*
642  * Juniper-private data link type, as per request from
643  * Hannes Gredler <hannes@juniper.net>.
644  * The DLT_ is used for internal communication with a
645  * voice Adapter Card (PIC)
646  */
647 #define DLT_JUNIPER_VP 183
648 
649 /*
650  * Arinc 429 frames.
651  * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
652  * Every frame contains a 32bit A429 label.
653  * More documentation on Arinc 429 can be found at
654  * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
655  */
656 #define DLT_A429 184
657 
658 /*
659  * Arinc 653 Interpartition Communication messages.
660  * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
661  * Please refer to the A653-1 standard for more information.
662  */
663 #define DLT_A653_ICM 185
664 
665 /*
666  * This used to be "USB packets, beginning with a USB setup header;
667  * requested by Paolo Abeni <paolo.abeni@email.it>."
668  *
669  * However, that header didn't work all that well - it left out some
670  * useful information - and was abandoned in favor of the DLT_USB_LINUX
671  * header.
672  *
673  * This is now used by FreeBSD for its BPF taps for USB; that has its
674  * own headers. So it is written, so it is done.
675  *
676  * For source-code compatibility, we also define DLT_USB to have this
677  * value. We do it numerically so that, if code that includes this
678  * file (directly or indirectly) also includes an OS header that also
679  * defines DLT_USB as 186, we don't get a redefinition warning.
680  * (NetBSD 7 does that.)
681  */
682 #define DLT_USB_FREEBSD 186
683 #define DLT_USB 186
684 
685 /*
686  * Bluetooth HCI UART transport layer (part H:4); requested by
687  * Paolo Abeni.
688  */
689 #define DLT_BLUETOOTH_HCI_H4 187
690 
691 /*
692  * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz
693  * <cruz_petagay@bah.com>.
694  */
695 #define DLT_IEEE802_16_MAC_CPS 188
696 
697 /*
698  * USB packets, beginning with a Linux USB header; requested by
699  * Paolo Abeni <paolo.abeni@email.it>.
700  */
701 #define DLT_USB_LINUX 189
702 
703 /*
704  * Controller Area Network (CAN) v. 2.0B packets.
705  * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
706  * Used to dump CAN packets coming from a CAN Vector board.
707  * More documentation on the CAN v2.0B frames can be found at
708  * http://www.can-cia.org/downloads/?269
709  */
710 #define DLT_CAN20B 190
711 
712 /*
713  * IEEE 802.15.4, with address fields padded, as is done by Linux
714  * drivers; requested by Juergen Schimmer.
715  */
716 #define DLT_IEEE802_15_4_LINUX 191
717 
718 /*
719  * Per Packet Information encapsulated packets.
720  * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
721  */
722 #define DLT_PPI 192
723 
724 /*
725  * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header;
726  * requested by Charles Clancy.
727  */
728 #define DLT_IEEE802_16_MAC_CPS_RADIO 193
729 
730 /*
731  * Juniper-private data link type, as per request from
732  * Hannes Gredler <hannes@juniper.net>.
733  * The DLT_ is used for internal communication with a
734  * integrated service module (ISM).
735  */
736 #define DLT_JUNIPER_ISM 194
737 
738 /*
739  * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
740  * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>.
741  * For this one, we expect the FCS to be present at the end of the frame;
742  * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used.
743  *
744  * We keep the name DLT_IEEE802_15_4 as an alias for backwards
745  * compatibility, but, again, this should *only* be used for 802.15.4
746  * frames that include the FCS.
747  */
748 #define DLT_IEEE802_15_4_WITHFCS 195
749 #define DLT_IEEE802_15_4 DLT_IEEE802_15_4_WITHFCS
750 
751 /*
752  * Various link-layer types, with a pseudo-header, for SITA
753  * (https://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com).
754  */
755 #define DLT_SITA 196
756 
757 /*
758  * Various link-layer types, with a pseudo-header, for Endace DAG cards;
759  * encapsulates Endace ERF records. Requested by Stephen Donnelly
760  * <stephen@endace.com>.
761  */
762 #define DLT_ERF 197
763 
764 /*
765  * Special header prepended to Ethernet packets when capturing from a
766  * u10 Networks board. Requested by Phil Mulholland
767  * <phil@u10networks.com>.
768  */
769 #define DLT_RAIF1 198
770 
771 /*
772  * IPMB packet for IPMI, beginning with a 2-byte header, followed by
773  * the I2C slave address, followed by the netFn and LUN, etc..
774  * Requested by Chanthy Toeung <chanthy.toeung@ca.kontron.com>.
775  *
776  * XXX - this used to be called DLT_IPMB, back when we got the
777  * impression from the email thread requesting it that the packet
778  * had no extra 2-byte header. We've renamed it; if anybody used
779  * DLT_IPMB and assumed no 2-byte header, this will cause the compile
780  * to fail, at which point we'll have to figure out what to do about
781  * the two header types using the same DLT_/LINKTYPE_ value. If that
782  * doesn't happen, we'll assume nobody used it and that the redefinition
783  * is safe.
784  */
785 #define DLT_IPMB_KONTRON 199
786 
787 /*
788  * Juniper-private data link type, as per request from
789  * Hannes Gredler <hannes@juniper.net>.
790  * The DLT_ is used for capturing data on a secure tunnel interface.
791  */
792 #define DLT_JUNIPER_ST 200
793 
794 /*
795  * Bluetooth HCI UART transport layer (part H:4), with pseudo-header
796  * that includes direction information; requested by Paolo Abeni.
797  */
798 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201
799 
800 /*
801  * AX.25 packet with a 1-byte KISS header; see
802  *
803  * http://www.ax25.net/kiss.htm
804  *
805  * as per Richard Stearn <richard@rns-stearn.demon.co.uk>.
806  */
807 #define DLT_AX25_KISS 202
808 
809 /*
810  * LAPD packets from an ISDN channel, starting with the address field,
811  * with no pseudo-header.
812  * Requested by Varuna De Silva <varunax@gmail.com>.
813  */
814 #define DLT_LAPD 203
815 
816 /*
817  * PPP, with a one-byte direction pseudo-header prepended - zero means
818  * "received by this host", non-zero (any non-zero value) means "sent by
819  * this host" - as per Will Barker <w.barker@zen.co.uk>.
820  *
821  * Don't confuse this with DLT_PPP_WITH_DIRECTION, which is an old
822  * name for what is now called DLT_PPP_PPPD.
823  */
824 #define DLT_PPP_WITH_DIR 204
825 
826 /*
827  * Cisco HDLC, with a one-byte direction pseudo-header prepended - zero
828  * means "received by this host", non-zero (any non-zero value) means
829  * "sent by this host" - as per Will Barker <w.barker@zen.co.uk>.
830  */
831 #define DLT_C_HDLC_WITH_DIR 205
832 
833 /*
834  * Frame Relay, with a one-byte direction pseudo-header prepended - zero
835  * means "received by this host" (DCE -> DTE), non-zero (any non-zero
836  * value) means "sent by this host" (DTE -> DCE) - as per Will Barker
837  * <w.barker@zen.co.uk>.
838  */
839 #define DLT_FRELAY_WITH_DIR 206
840 
841 /*
842  * LAPB, with a one-byte direction pseudo-header prepended - zero means
843  * "received by this host" (DCE -> DTE), non-zero (any non-zero value)
844  * means "sent by this host" (DTE -> DCE)- as per Will Barker
845  * <w.barker@zen.co.uk>.
846  */
847 #define DLT_LAPB_WITH_DIR 207
848 
849 /*
850  * 208 is reserved for an as-yet-unspecified proprietary link-layer
851  * type, as requested by Will Barker.
852  */
853 
854 /*
855  * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman
856  * <avn@pigeonpoint.com>.
857  */
858 #define DLT_IPMB_LINUX 209
859 
860 /*
861  * FlexRay automotive bus - http://www.flexray.com/ - as requested
862  * by Hannes Kaelber <hannes.kaelber@x2e.de>.
863  */
864 #define DLT_FLEXRAY 210
865 
866 /*
867  * Media Oriented Systems Transport (MOST) bus for multimedia
868  * transport - https://www.mostcooperation.com/ - as requested
869  * by Hannes Kaelber <hannes.kaelber@x2e.de>.
870  */
871 #define DLT_MOST 211
872 
873 /*
874  * Local Interconnect Network (LIN) bus for vehicle networks -
875  * http://www.lin-subbus.org/ - as requested by Hannes Kaelber
876  * <hannes.kaelber@x2e.de>.
877  */
878 #define DLT_LIN 212
879 
880 /*
881  * X2E-private data link type used for serial line capture,
882  * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
883  */
884 #define DLT_X2E_SERIAL 213
885 
886 /*
887  * X2E-private data link type used for the Xoraya data logger
888  * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
889  */
890 #define DLT_X2E_XORAYA 214
891 
892 /*
893  * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
894  * nothing), but with the PHY-level data for non-ASK PHYs (4 octets
895  * of 0 as preamble, one octet of SFD, one octet of frame length+
896  * reserved bit, and then the MAC-layer data, starting with the
897  * frame control field).
898  *
899  * Requested by Max Filippov <jcmvbkbc@gmail.com>.
900  */
901 #define DLT_IEEE802_15_4_NONASK_PHY 215
902 
903 /*
904  * David Gibson <david@gibson.dropbear.id.au> requested this for
905  * captures from the Linux kernel /dev/input/eventN devices. This
906  * is used to communicate keystrokes and mouse movements from the
907  * Linux kernel to display systems, such as Xorg.
908  */
909 #define DLT_LINUX_EVDEV 216
910 
911 /*
912  * GSM Um and Abis interfaces, preceded by a "gsmtap" header.
913  *
914  * Requested by Harald Welte <laforge@gnumonks.org>.
915  */
916 #define DLT_GSMTAP_UM 217
917 #define DLT_GSMTAP_ABIS 218
918 
919 /*
920  * MPLS, with an MPLS label as the link-layer header.
921  * Requested by Michele Marchetto <michele@openbsd.org> on behalf
922  * of OpenBSD.
923  */
924 #define DLT_MPLS 219
925 
926 /*
927  * USB packets, beginning with a Linux USB header, with the USB header
928  * padded to 64 bytes; required for memory-mapped access.
929  */
930 #define DLT_USB_LINUX_MMAPPED 220
931 
932 /*
933  * DECT packets, with a pseudo-header; requested by
934  * Matthias Wenzel <tcpdump@mazzoo.de>.
935  */
936 #define DLT_DECT 221
937 
938 /*
939  * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov>
940  * Date: Mon, 11 May 2009 11:18:30 -0500
941  *
942  * DLT_AOS. We need it for AOS Space Data Link Protocol.
943  * I have already written dissectors for but need an OK from
944  * legal before I can submit a patch.
945  *
946  */
947 #define DLT_AOS 222
948 
949 /*
950  * Wireless HART (Highway Addressable Remote Transducer)
951  * From the HART Communication Foundation
952  * IES/PAS 62591
953  *
954  * Requested by Sam Roberts <vieuxtech@gmail.com>.
955  */
956 #define DLT_WIHART 223
957 
958 /*
959  * Fibre Channel FC-2 frames, beginning with a Frame_Header.
960  * Requested by Kahou Lei <kahou82@gmail.com>.
961  */
962 #define DLT_FC_2 224
963 
964 /*
965  * Fibre Channel FC-2 frames, beginning with an encoding of the
966  * SOF, and ending with an encoding of the EOF.
967  *
968  * The encodings represent the frame delimiters as 4-byte sequences
969  * representing the corresponding ordered sets, with K28.5
970  * represented as 0xBC, and the D symbols as the corresponding
971  * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2,
972  * is represented as 0xBC 0xB5 0x55 0x55.
973  *
974  * Requested by Kahou Lei <kahou82@gmail.com>.
975  */
976 #define DLT_FC_2_WITH_FRAME_DELIMS 225
977 
978 /*
979  * Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>.
980  *
981  * The pseudo-header starts with a one-byte version number; for version 2,
982  * the pseudo-header is:
983  *
984  * struct dl_ipnetinfo {
985  * uint8_t dli_version;
986  * uint8_t dli_family;
987  * uint16_t dli_htype;
988  * uint32_t dli_pktlen;
989  * uint32_t dli_ifindex;
990  * uint32_t dli_grifindex;
991  * uint32_t dli_zsrc;
992  * uint32_t dli_zdst;
993  * };
994  *
995  * dli_version is 2 for the current version of the pseudo-header.
996  *
997  * dli_family is a Solaris address family value, so it's 2 for IPv4
998  * and 26 for IPv6.
999  *
1000  * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing
1001  * packets, and 2 for packets arriving from another zone on the same
1002  * machine.
1003  *
1004  * dli_pktlen is the length of the packet data following the pseudo-header
1005  * (so the captured length minus dli_pktlen is the length of the
1006  * pseudo-header, assuming the entire pseudo-header was captured).
1007  *
1008  * dli_ifindex is the interface index of the interface on which the
1009  * packet arrived.
1010  *
1011  * dli_grifindex is the group interface index number (for IPMP interfaces).
1012  *
1013  * dli_zsrc is the zone identifier for the source of the packet.
1014  *
1015  * dli_zdst is the zone identifier for the destination of the packet.
1016  *
1017  * A zone number of 0 is the global zone; a zone number of 0xffffffff
1018  * means that the packet arrived from another host on the network, not
1019  * from another zone on the same machine.
1020  *
1021  * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates
1022  * which of those it is.
1023  */
1024 #define DLT_IPNET 226
1025 
1026 /*
1027  * CAN (Controller Area Network) frames, with a pseudo-header as supplied
1028  * by Linux SocketCAN, and with multi-byte numerical fields in that header
1029  * in big-endian byte order.
1030  *
1031  * See Documentation/networking/can.txt in the Linux source.
1032  *
1033  * Requested by Felix Obenhuber <felix@obenhuber.de>.
1034  */
1035 #define DLT_CAN_SOCKETCAN 227
1036 
1037 /*
1038  * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies
1039  * whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>.
1040  */
1041 #define DLT_IPV4 228
1042 #define DLT_IPV6 229
1043 
1044 /*
1045  * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
1046  * nothing), and with no FCS at the end of the frame; requested by
1047  * Jon Smirl <jonsmirl@gmail.com>.
1048  */
1049 #define DLT_IEEE802_15_4_NOFCS 230
1050 
1051 /*
1052  * Raw D-Bus:
1053  *
1054  * https://www.freedesktop.org/wiki/Software/dbus
1055  *
1056  * messages:
1057  *
1058  * https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
1059  *
1060  * starting with the endianness flag, followed by the message type, etc.,
1061  * but without the authentication handshake before the message sequence:
1062  *
1063  * https://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol
1064  *
1065  * Requested by Martin Vidner <martin@vidner.net>.
1066  */
1067 #define DLT_DBUS 231
1068 
1069 /*
1070  * Juniper-private data link type, as per request from
1071  * Hannes Gredler <hannes@juniper.net>.
1072  */
1073 #define DLT_JUNIPER_VS 232
1074 #define DLT_JUNIPER_SRX_E2E 233
1075 #define DLT_JUNIPER_FIBRECHANNEL 234
1076 
1077 /*
1078  * DVB-CI (DVB Common Interface for communication between a PC Card
1079  * module and a DVB receiver). See
1080  *
1081  * https://www.kaiser.cx/pcap-dvbci.html
1082  *
1083  * for the specification.
1084  *
1085  * Requested by Martin Kaiser <martin@kaiser.cx>.
1086  */
1087 #define DLT_DVB_CI 235
1088 
1089 /*
1090  * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but
1091  * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel
1092  * <hans-christoph.schemmel@cinterion.com>.
1093  */
1094 #define DLT_MUX27010 236
1095 
1096 /*
1097  * STANAG 5066 D_PDUs. Requested by M. Baris Demiray
1098  * <barisdemiray@gmail.com>.
1099  */
1100 #define DLT_STANAG_5066_D_PDU 237
1101 
1102 /*
1103  * Juniper-private data link type, as per request from
1104  * Hannes Gredler <hannes@juniper.net>.
1105  */
1106 #define DLT_JUNIPER_ATM_CEMIC 238
1107 
1108 /*
1109  * NetFilter LOG messages
1110  * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets)
1111  *
1112  * Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl>
1113  */
1114 #define DLT_NFLOG 239
1115 
1116 /*
1117  * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
1118  * for Ethernet packets with a 4-byte pseudo-header and always
1119  * with the payload including the FCS, as supplied by their
1120  * netANALYZER hardware and software.
1121  *
1122  * Requested by Holger P. Frommer <HPfrommer@hilscher.com>
1123  */
1124 #define DLT_NETANALYZER 240
1125 
1126 /*
1127  * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
1128  * for Ethernet packets with a 4-byte pseudo-header and FCS and
1129  * with the Ethernet header preceded by 7 bytes of preamble and
1130  * 1 byte of SFD, as supplied by their netANALYZER hardware and
1131  * software.
1132  *
1133  * Requested by Holger P. Frommer <HPfrommer@hilscher.com>
1134  */
1135 #define DLT_NETANALYZER_TRANSPARENT 241
1136 
1137 /*
1138  * IP-over-InfiniBand, as specified by RFC 4391.
1139  *
1140  * Requested by Petr Sumbera <petr.sumbera@oracle.com>.
1141  */
1142 #define DLT_IPOIB 242
1143 
1144 /*
1145  * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0).
1146  *
1147  * Requested by Guy Martin <gmsoft@tuxicoman.be>.
1148  */
1149 #define DLT_MPEG_2_TS 243
1150 
1151 /*
1152  * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as
1153  * used by their ng40 protocol tester.
1154  *
1155  * Requested by Jens Grimmer <jens.grimmer@ng4t.com>.
1156  */
1157 #define DLT_NG40 244
1158 
1159 /*
1160  * Pseudo-header giving adapter number and flags, followed by an NFC
1161  * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU,
1162  * as specified by NFC Forum Logical Link Control Protocol Technical
1163  * Specification LLCP 1.1.
1164  *
1165  * Requested by Mike Wakerly <mikey@google.com>.
1166  */
1167 #define DLT_NFC_LLCP 245
1168 
1169 /*
1170  * 246 is used as LINKTYPE_PFSYNC; do not use it for any other purpose.
1171  *
1172  * DLT_PFSYNC has different values on different platforms, and all of
1173  * them collide with something used elsewhere. On platforms that
1174  * don't already define it, define it as 246.
1175  */
1176 #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__)
1177 #define DLT_PFSYNC 246
1178 #endif
1179 
1180 /*
1181  * Raw InfiniBand packets, starting with the Local Routing Header.
1182  *
1183  * Requested by Oren Kladnitsky <orenk@mellanox.com>.
1184  */
1185 #define DLT_INFINIBAND 247
1186 
1187 /*
1188  * SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6).
1189  *
1190  * Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>.
1191  */
1192 #define DLT_SCTP 248
1193 
1194 /*
1195  * USB packets, beginning with a USBPcap header.
1196  *
1197  * Requested by Tomasz Mon <desowin@gmail.com>
1198  */
1199 #define DLT_USBPCAP 249
1200 
1201 /*
1202  * Schweitzer Engineering Laboratories "RTAC" product serial-line
1203  * packets.
1204  *
1205  * Requested by Chris Bontje <chris_bontje@selinc.com>.
1206  */
1207 #define DLT_RTAC_SERIAL 250
1208 
1209 /*
1210  * Bluetooth Low Energy air interface link-layer packets.
1211  *
1212  * Requested by Mike Kershaw <dragorn@kismetwireless.net>.
1213  */
1214 #define DLT_BLUETOOTH_LE_LL 251
1215 
1216 /*
1217  * DLT type for upper-protocol layer PDU saves from wireshark.
1218  *
1219  * the actual contents are determined by two TAGs stored with each
1220  * packet:
1221  * EXP_PDU_TAG_LINKTYPE the link type (LINKTYPE_ value) of the
1222  * original packet.
1223  *
1224  * EXP_PDU_TAG_PROTO_NAME the name of the wireshark dissector
1225  * that can make sense of the data stored.
1226  */
1227 #define DLT_WIRESHARK_UPPER_PDU 252
1228 
1229 /*
1230  * DLT type for the netlink protocol (nlmon devices).
1231  */
1232 #define DLT_NETLINK 253
1233 
1234 /*
1235  * Bluetooth Linux Monitor headers for the BlueZ stack.
1236  */
1237 #define DLT_BLUETOOTH_LINUX_MONITOR 254
1238 
1239 /*
1240  * Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as
1241  * captured by Ubertooth.
1242  */
1243 #define DLT_BLUETOOTH_BREDR_BB 255
1244 
1245 /*
1246  * Bluetooth Low Energy link layer packets, as captured by Ubertooth.
1247  */
1248 #define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256
1249 
1250 /*
1251  * PROFIBUS data link layer.
1252  */
1253 #define DLT_PROFIBUS_DL 257
1254 
1255 /*
1256  * Apple's DLT_PKTAP headers.
1257  *
1258  * Sadly, the folks at Apple either had no clue that the DLT_USERn values
1259  * are for internal use within an organization and partners only, and
1260  * didn't know that the right way to get a link-layer header type is to
1261  * ask tcpdump.org for one, or knew and didn't care, so they just
1262  * used DLT_USER2, which causes problems for everything except for
1263  * their version of tcpdump.
1264  *
1265  * So I'll just give them one; hopefully this will show up in a
1266  * libpcap release in time for them to get this into 10.10 Big Sur
1267  * or whatever Mavericks' successor is called. LINKTYPE_PKTAP
1268  * will be 258 *even on macOS*; that is *intentional*, so that
1269  * PKTAP files look the same on *all* OSes (different OSes can have
1270  * different numerical values for a given DLT_, but *MUST NOT* have
1271  * different values for what goes in a file, as files can be moved
1272  * between OSes!).
1273  *
1274  * When capturing, on a system with a Darwin-based OS, on a device
1275  * that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this
1276  * version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP,
1277  * and that will continue to be DLT_USER2 on Darwin-based OSes. That way,
1278  * binary compatibility with Mavericks is preserved for programs using
1279  * this version of libpcap. This does mean that if you were using
1280  * DLT_USER2 for some capture device on macOS, you can't do so with
1281  * this version of libpcap, just as you can't with Apple's libpcap -
1282  * on macOS, they define DLT_PKTAP to be DLT_USER2, so programs won't
1283  * be able to distinguish between PKTAP and whatever you were using
1284  * DLT_USER2 for.
1285  *
1286  * If the program saves the capture to a file using this version of
1287  * libpcap's pcap_dump code, the LINKTYPE_ value in the file will be
1288  * LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes.
1289  * That way, the file will *not* be a DLT_USER2 file. That means
1290  * that the latest version of tcpdump, when built with this version
1291  * of libpcap, and sufficiently recent versions of Wireshark will
1292  * be able to read those files and interpret them correctly; however,
1293  * Apple's version of tcpdump in OS X 10.9 won't be able to handle
1294  * them. (Hopefully, Apple will pick up this version of libpcap,
1295  * and the corresponding version of tcpdump, so that tcpdump will
1296  * be able to handle the old LINKTYPE_USER2 captures *and* the new
1297  * LINKTYPE_PKTAP captures.)
1298  */
1299 #ifdef __APPLE__
1300 #define DLT_PKTAP DLT_USER2
1301 #else
1302 #define DLT_PKTAP 258
1303 #endif
1304 
1305 /*
1306  * Ethernet packets preceded by a header giving the last 6 octets
1307  * of the preamble specified by 802.3-2012 Clause 65, section
1308  * 65.1.3.2 "Transmit".
1309  */
1310 #define DLT_EPON 259
1311 
1312 /*
1313  * IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format"
1314  * in the PICMG HPM.2 specification.
1315  */
1316 #define DLT_IPMI_HPM_2 260
1317 
1318 /*
1319  * per Joshua Wright <jwright@hasborg.com>, formats for Zwave captures.
1320  */
1321 #define DLT_ZWAVE_R1_R2 261
1322 #define DLT_ZWAVE_R3 262
1323 
1324 /*
1325  * per Steve Karg <skarg@users.sourceforge.net>, formats for Wattstopper
1326  * Digital Lighting Management room bus serial protocol captures.
1327  */
1328 #define DLT_WATTSTOPPER_DLM 263
1329 
1330 /*
1331  * ISO 14443 contactless smart card messages.
1332  */
1333 #define DLT_ISO_14443 264
1334 
1335 /*
1336  * Radio data system (RDS) groups. IEC 62106.
1337  * Per Jonathan Brucker <jonathan.brucke@gmail.com>.
1338  */
1339 #define DLT_RDS 265
1340 
1341 /*
1342  * USB packets, beginning with a Darwin (macOS, etc.) header.
1343  */
1344 #define DLT_USB_DARWIN 266
1345 
1346 /*
1347  * OpenBSD DLT_OPENFLOW.
1348  */
1349 #define DLT_OPENFLOW 267
1350 
1351 /*
1352  * SDLC frames containing SNA PDUs.
1353  */
1354 #define DLT_SDLC 268
1355 
1356 /*
1357  * per "Selvig, Bjorn" <b.selvig@ti.com> used for
1358  * TI protocol sniffer.
1359  */
1360 #define DLT_TI_LLN_SNIFFER 269
1361 
1362 /*
1363  * per: Erik de Jong <erikdejong at gmail.com> for
1364  * https://github.com/eriknl/LoRaTap/releases/tag/v0.1
1365  */
1366 #define DLT_LORATAP 270
1367 
1368 /*
1369  * per: Stefanha at gmail.com for
1370  * https://lists.sandelman.ca/pipermail/tcpdump-workers/2017-May/000772.html
1371  * and: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/vsockmon.h
1372  * for: https://qemu-project.org/Features/VirtioVsock
1373  */
1374 #define DLT_VSOCK 271
1375 
1376 /*
1377  * Nordic Semiconductor Bluetooth LE sniffer.
1378  */
1379 #define DLT_NORDIC_BLE 272
1380 
1381 /*
1382  * Excentis DOCSIS 3.1 RF sniffer (XRA-31)
1383  * per: bruno.verstuyft at excentis.com
1384  * https://www.xra31.com/xra-header
1385  */
1386 #define DLT_DOCSIS31_XRA31 273
1387 
1388 /*
1389  * mPackets, as specified by IEEE 802.3br Figure 99-4, starting
1390  * with the preamble and always ending with a CRC field.
1391  */
1392 #define DLT_ETHERNET_MPACKET 274
1393 
1394 /*
1395  * DisplayPort AUX channel monitoring data as specified by VESA
1396  * DisplayPort(DP) Standard preceded by a pseudo-header.
1397  * per dirk.eibach at gdsys.cc
1398  */
1399 #define DLT_DISPLAYPORT_AUX 275
1400 
1401 /*
1402  * Linux cooked sockets v2.
1403  */
1404 #define DLT_LINUX_SLL2 276
1405 
1406 /*
1407  * Sercos Monitor, per Manuel Jacob <manuel.jacob at steinbeis-stg.de>
1408  */
1409 #define DLT_SERCOS_MONITOR 277
1410 
1411 /*
1412  * OpenVizsla http://openvizsla.org is open source USB analyzer hardware.
1413  * It consists of FPGA with attached USB phy and FTDI chip for streaming
1414  * the data to the host PC.
1415  *
1416  * Current OpenVizsla data encapsulation format is described here:
1417  * https://github.com/matwey/libopenvizsla/wiki/OpenVizsla-protocol-description
1418  *
1419  */
1420 #define DLT_OPENVIZSLA 278
1421 
1422 /*
1423  * The Elektrobit High Speed Capture and Replay (EBHSCR) protocol is produced
1424  * by a PCIe Card for interfacing high speed automotive interfaces.
1425  *
1426  * The specification for this frame format can be found at:
1427  * https://www.elektrobit.com/ebhscr
1428  *
1429  * for Guenter.Ebermann at elektrobit.com
1430  *
1431  */
1432 #define DLT_EBHSCR 279
1433 
1434 /*
1435  * The https://fd.io vpp graph dispatch tracer produces pcap trace files
1436  * in the format documented here:
1437  * https://fdio-vpp.readthedocs.io/en/latest/gettingstarted/developers/vnet.html#graph-dispatcher-pcap-tracing
1438  */
1439 #define DLT_VPP_DISPATCH 280
1440 
1441 /*
1442  * Broadcom Ethernet switches (ROBO switch) 4 bytes proprietary tagging format.
1443  */
1444 #define DLT_DSA_TAG_BRCM 281
1445 #define DLT_DSA_TAG_BRCM_PREPEND 282
1446 
1447 /*
1448  * IEEE 802.15.4 with pseudo-header and optional meta-data TLVs, PHY payload
1449  * exactly as it appears in the spec (no padding, no nothing), and FCS if
1450  * specified by FCS Type TLV; requested by James Ko <jck@exegin.com>.
1451  * Specification at https://github.com/jkcko/ieee802.15.4-tap
1452  */
1453 #define DLT_IEEE802_15_4_TAP 283
1454 
1455 /*
1456  * Marvell (Ethertype) Distributed Switch Architecture proprietary tagging format.
1457  */
1458 #define DLT_DSA_TAG_DSA 284
1459 #define DLT_DSA_TAG_EDSA 285
1460 
1461 /*
1462  * Payload of lawful intercept packets using the ELEE protocol;
1463  * https://socket.hr/draft-dfranusic-opsawg-elee-00.xml
1464  * https://xml2rfc.tools.ietf.org/cgi-bin/xml2rfc.cgi?url=https://socket.hr/draft-dfranusic-opsawg-elee-00.xml&modeAsFormat=html/ascii
1465  */
1466 #define DLT_ELEE 286
1467 
1468 /*
1469  * Serial frames transmitted between a host and a Z-Wave chip.
1470  */
1471 #define DLT_Z_WAVE_SERIAL 287
1472 
1473 /*
1474  * USB 2.0, 1.1, and 1.0 packets as transmitted over the cable.
1475  */
1476 #define DLT_USB_2_0 288
1477 
1478 /*
1479  * ATSC Link-Layer Protocol (A/330) packets.
1480  */
1481 #define DLT_ATSC_ALP 289
1482 
1483 /*
1484  * In case the code that includes this file (directly or indirectly)
1485  * has also included OS files that happen to define DLT_MATCHING_MAX,
1486  * with a different value (perhaps because that OS hasn't picked up
1487  * the latest version of our DLT definitions), we undefine the
1488  * previous value of DLT_MATCHING_MAX.
1489  */
1490 #ifdef DLT_MATCHING_MAX
1491 #undef DLT_MATCHING_MAX
1492 #endif
1493 #define DLT_MATCHING_MAX 289 /* highest value in the "matching" range */
1494 
1495 /*
1496  * DLT and savefile link type values are split into a class and
1497  * a member of that class. A class value of 0 indicates a regular
1498  * DLT_/LINKTYPE_ value.
1499  */
1500 #define DLT_CLASS(x) ((x) & 0x03ff0000)
1501 
1502 /*
1503  * NetBSD-specific generic "raw" link type. The class value indicates
1504  * that this is the generic raw type, and the lower 16 bits are the
1505  * address family we're dealing with. Those values are NetBSD-specific;
1506  * do not assume that they correspond to AF_ values for your operating
1507  * system.
1508  */
1509 #define DLT_CLASS_NETBSD_RAWAF 0x02240000
1510 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af))
1511 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff)
1512 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF)
1513 
1514 #endif /* !defined(lib_pcap_dlt_h) */