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1 office 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. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)bpf.h 7.1 (Berkeley) 5/7/91
39 */
40  
41 /*
42 * This is libpcap's cut-down version of bpf.h; it includes only
43 * the stuff needed for the code generator and the userland BPF
44 * interpreter, and the libpcap APIs for setting filters, etc..
45 *
46 * "pcap-bpf.c" will include the native OS version, as it deals with
47 * the OS's BPF implementation.
48 *
49 * At least two programs found by Google Code Search explicitly includes
50 * <pcap/bpf.h> (even though <pcap.h>/<pcap/pcap.h> includes it for you),
51 * so moving that stuff to <pcap/pcap.h> would break the build for some
52 * programs.
53 */
54  
55 /*
56 * If we've already included <net/bpf.h>, don't re-define this stuff.
57 * We assume BSD-style multiple-include protection in <net/bpf.h>,
58 * which is true of all but the oldest versions of FreeBSD and NetBSD,
59 * or Tru64 UNIX-style multiple-include protection (or, at least,
60 * Tru64 UNIX 5.x-style; I don't have earlier versions available to check),
61 * or AIX-style multiple-include protection (or, at least, AIX 5.x-style;
62 * I don't have earlier versions available to check), or QNX-style
63 * multiple-include protection (as per GitHub pull request #394).
64 *
65 * We do not check for BPF_MAJOR_VERSION, as that's defined by
66 * <linux/filter.h>, which is directly or indirectly included in some
67 * programs that also include pcap.h, and <linux/filter.h> doesn't
68 * define stuff we need.
69 *
70 * This also provides our own multiple-include protection.
71 */
72 #if !defined(_NET_BPF_H_) && !defined(_NET_BPF_H_INCLUDED) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h)
73 #define lib_pcap_bpf_h
74  
75 #ifdef __cplusplus
76 extern "C" {
77 #endif
78  
79 /* BSD style release date */
80 #define BPF_RELEASE 199606
81  
82 #ifdef MSDOS /* must be 32-bit */
83 typedef long bpf_int32;
84 typedef unsigned long bpf_u_int32;
85 #else
86 typedef int bpf_int32;
87 typedef u_int bpf_u_int32;
88 #endif
89  
90 /*
91 * Alignment macros. BPF_WORDALIGN rounds up to the next
92 * even multiple of BPF_ALIGNMENT.
93 *
94 * Tcpdump's print-pflog.c uses this, so we define it here.
95 */
96 #ifndef __NetBSD__
97 #define BPF_ALIGNMENT sizeof(bpf_int32)
98 #else
99 #define BPF_ALIGNMENT sizeof(long)
100 #endif
101 #define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1))
102  
103 /*
104 * Structure for "pcap_compile()", "pcap_setfilter()", etc..
105 */
106 struct bpf_program {
107 u_int bf_len;
108 struct bpf_insn *bf_insns;
109 };
110  
111 /*
112 * Link-layer header type codes.
113 *
114 * Do *NOT* add new values to this list without asking
115 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run
116 * the risk of using a value that's already being used for some other
117 * purpose, and of having tools that read libpcap-format captures not
118 * being able to handle captures with your new DLT_ value, with no hope
119 * that they will ever be changed to do so (as that would destroy their
120 * ability to read captures using that value for that other purpose).
121 *
122 * See
123 *
124 * http://www.tcpdump.org/linktypes.html
125 *
126 * for detailed descriptions of some of these link-layer header types.
127 */
128  
129 /*
130 * These are the types that are the same on all platforms, and that
131 * have been defined by <net/bpf.h> for ages.
132 */
133 #define DLT_NULL 0 /* BSD loopback encapsulation */
134 #define DLT_EN10MB 1 /* Ethernet (10Mb) */
135 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */
136 #define DLT_AX25 3 /* Amateur Radio AX.25 */
137 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */
138 #define DLT_CHAOS 5 /* Chaos */
139 #define DLT_IEEE802 6 /* 802.5 Token Ring */
140 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */
141 #define DLT_SLIP 8 /* Serial Line IP */
142 #define DLT_PPP 9 /* Point-to-point Protocol */
143 #define DLT_FDDI 10 /* FDDI */
144  
145 /*
146 * These are types that are different on some platforms, and that
147 * have been defined by <net/bpf.h> for ages. We use #ifdefs to
148 * detect the BSDs that define them differently from the traditional
149 * libpcap <net/bpf.h>
150 *
151 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS,
152 * but I don't know what the right #define is for BSD/OS.
153 */
154 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */
155  
156 #ifdef __OpenBSD__
157 #define DLT_RAW 14 /* raw IP */
158 #else
159 #define DLT_RAW 12 /* raw IP */
160 #endif
161  
162 /*
163 * Given that the only OS that currently generates BSD/OS SLIP or PPP
164 * is, well, BSD/OS, arguably everybody should have chosen its values
165 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they
166 * didn't. So it goes.
167 */
168 #if defined(__NetBSD__) || defined(__FreeBSD__)
169 #ifndef DLT_SLIP_BSDOS
170 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */
171 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */
172 #endif
173 #else
174 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */
175 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */
176 #endif
177  
178 /*
179 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is.
180 *
181 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG
182 * as 117 so that pflog captures would use a link-layer header type
183 * value that didn't collide with any other values. On all
184 * platforms other than OpenBSD, we defined DLT_PFLOG as 117,
185 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG.
186 *
187 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well.
188 *
189 * Don't use 17 for anything else.
190 */
191  
192 /*
193 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and
194 * Mac OS X; don't use it for anything else. (FreeBSD uses 121,
195 * which collides with DLT_HHDLC, even though it doesn't use 18
196 * for anything and doesn't appear to have ever used it for anything.)
197 *
198 * We define it as 18 on those platforms; it is, unfortunately, used
199 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC
200 * in general. As the packet format for it, like that for
201 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent,
202 * we don't support printing it in tcpdump except on OSes that
203 * have the relevant header files, so it's not that useful on
204 * other platforms.
205 */
206 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__)
207 #define DLT_PFSYNC 18
208 #endif
209  
210 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */
211  
212 /*
213 * Apparently Redback uses this for its SmartEdge 400/800. I hope
214 * nobody else decided to use it, too.
215 */
216 #define DLT_REDBACK_SMARTEDGE 32
217  
218 /*
219 * These values are defined by NetBSD; other platforms should refrain from
220 * using them for other purposes, so that NetBSD savefiles with link
221 * types of 50 or 51 can be read as this type on all platforms.
222 */
223 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */
224 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */
225  
226 /*
227 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses
228 * a link-layer type of 99 for the tcpdump it supplies. The link-layer
229 * header has 6 bytes of unknown data, something that appears to be an
230 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture
231 * I've seen.
232 */
233 #define DLT_SYMANTEC_FIREWALL 99
234  
235 /*
236 * Values between 100 and 103 are used in capture file headers as
237 * link-layer header type LINKTYPE_ values corresponding to DLT_ types
238 * that differ between platforms; don't use those values for new DLT_
239 * new types.
240 */
241  
242 /*
243 * Values starting with 104 are used for newly-assigned link-layer
244 * header type values; for those link-layer header types, the DLT_
245 * value returned by pcap_datalink() and passed to pcap_open_dead(),
246 * and the LINKTYPE_ value that appears in capture files, are the
247 * same.
248 *
249 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is
250 * the highest such value.
251 */
252 #define DLT_MATCHING_MIN 104
253  
254 /*
255 * This value was defined by libpcap 0.5; platforms that have defined
256 * it with a different value should define it here with that value -
257 * a link type of 104 in a save file will be mapped to DLT_C_HDLC,
258 * whatever value that happens to be, so programs will correctly
259 * handle files with that link type regardless of the value of
260 * DLT_C_HDLC.
261 *
262 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source
263 * compatibility with programs written for BSD/OS.
264 *
265 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
266 * for source compatibility with programs written for libpcap 0.5.
267 */
268 #define DLT_C_HDLC 104 /* Cisco HDLC */
269 #define DLT_CHDLC DLT_C_HDLC
270  
271 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */
272  
273 /*
274 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW,
275 * except when it isn't. (I.e., sometimes it's just raw IP, and
276 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL,
277 * so that we don't have to worry about the link-layer header.)
278 */
279  
280 /*
281 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides
282 * with other values.
283 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header
284 * (DLCI, etc.).
285 */
286 #define DLT_FRELAY 107
287  
288 /*
289 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
290 * that the AF_ type in the link-layer header is in network byte order.
291 *
292 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so
293 * we don't use 12 for it in OSes other than OpenBSD.
294 */
295 #ifdef __OpenBSD__
296 #define DLT_LOOP 12
297 #else
298 #define DLT_LOOP 108
299 #endif
300  
301 /*
302 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
303 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other
304 * than OpenBSD.
305 */
306 #ifdef __OpenBSD__
307 #define DLT_ENC 13
308 #else
309 #define DLT_ENC 109
310 #endif
311  
312 /*
313 * Values between 110 and 112 are reserved for use in capture file headers
314 * as link-layer types corresponding to DLT_ types that might differ
315 * between platforms; don't use those values for new DLT_ types
316 * other than the corresponding DLT_ types.
317 */
318  
319 /*
320 * This is for Linux cooked sockets.
321 */
322 #define DLT_LINUX_SLL 113
323  
324 /*
325 * Apple LocalTalk hardware.
326 */
327 #define DLT_LTALK 114
328  
329 /*
330 * Acorn Econet.
331 */
332 #define DLT_ECONET 115
333  
334 /*
335 * Reserved for use with OpenBSD ipfilter.
336 */
337 #define DLT_IPFILTER 116
338  
339 /*
340 * OpenBSD DLT_PFLOG.
341 */
342 #define DLT_PFLOG 117
343  
344 /*
345 * Registered for Cisco-internal use.
346 */
347 #define DLT_CISCO_IOS 118
348  
349 /*
350 * For 802.11 cards using the Prism II chips, with a link-layer
351 * header including Prism monitor mode information plus an 802.11
352 * header.
353 */
354 #define DLT_PRISM_HEADER 119
355  
356 /*
357 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header
358 * (see Doug Ambrisko's FreeBSD patches).
359 */
360 #define DLT_AIRONET_HEADER 120
361  
362 /*
363 * Sigh.
364 *
365 * This was reserved for Siemens HiPath HDLC on 2002-01-25, as
366 * requested by Tomas Kukosa.
367 *
368 * On 2004-02-25, a FreeBSD checkin to sys/net/bpf.h was made that
369 * assigned 121 as DLT_PFSYNC. Its libpcap does DLT_ <-> LINKTYPE_
370 * mapping, so it probably supports capturing on the pfsync device
371 * but not saving the captured data to a pcap file.
372 *
373 * OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC;
374 * their libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would
375 * use 18 in pcap files as well.
376 *
377 * NetBSD and DragonFly BSD also use 18 for DLT_PFSYNC; their
378 * libpcaps do DLT_ <-> LINKTYPE_ mapping, and neither has an entry
379 * for DLT_PFSYNC, so it might not be able to write out dump files
380 * with 18 as the link-layer header type. (Earlier versions might
381 * not have done mapping, in which case they'd work the same way
382 * OpenBSD does.)
383 *
384 * Mac OS X defines it as 18, but doesn't appear to use it as of
385 * Mac OS X 10.7.3. Its libpcap does DLT_ <-> LINKTYPE_ mapping.
386 *
387 * We'll define DLT_PFSYNC as 121 on FreeBSD and define it as 18 on
388 * all other platforms. We'll define DLT_HHDLC as 121 on everything
389 * except for FreeBSD; anybody who wants to compile, on FreeBSD, code
390 * that uses DLT_HHDLC is out of luck.
391 *
392 * We'll define LINKTYPE_PFSYNC as 18, *even on FreeBSD*, and map
393 * it, so that savefiles won't use 121 for PFSYNC - they'll all
394 * use 18. Code that uses pcap_datalink() to determine the link-layer
395 * header type of a savefile won't, when built and run on FreeBSD,
396 * be able to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC
397 * capture files; code that doesn't, such as the code in Wireshark,
398 * will be able to distinguish between them.
399 */
400 #ifdef __FreeBSD__
401 #define DLT_PFSYNC 121
402 #else
403 #define DLT_HHDLC 121
404 #endif
405  
406 /*
407 * This is for RFC 2625 IP-over-Fibre Channel.
408 *
409 * This is not for use with raw Fibre Channel, where the link-layer
410 * header starts with a Fibre Channel frame header; it's for IP-over-FC,
411 * where the link-layer header starts with an RFC 2625 Network_Header
412 * field.
413 */
414 #define DLT_IP_OVER_FC 122
415  
416 /*
417 * This is for Full Frontal ATM on Solaris with SunATM, with a
418 * pseudo-header followed by an AALn PDU.
419 *
420 * There may be other forms of Full Frontal ATM on other OSes,
421 * with different pseudo-headers.
422 *
423 * If ATM software returns a pseudo-header with VPI/VCI information
424 * (and, ideally, packet type information, e.g. signalling, ILMI,
425 * LANE, LLC-multiplexed traffic, etc.), it should not use
426 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump
427 * and the like don't have to infer the presence or absence of a
428 * pseudo-header and the form of the pseudo-header.
429 */
430 #define DLT_SUNATM 123 /* Solaris+SunATM */
431  
432 /*
433 * Reserved as per request from Kent Dahlgren <kent@praesum.com>
434 * for private use.
435 */
436 #define DLT_RIO 124 /* RapidIO */
437 #define DLT_PCI_EXP 125 /* PCI Express */
438 #define DLT_AURORA 126 /* Xilinx Aurora link layer */
439  
440 /*
441 * Header for 802.11 plus a number of bits of link-layer information
442 * including radio information, used by some recent BSD drivers as
443 * well as the madwifi Atheros driver for Linux.
444 */
445 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */
446  
447 /*
448 * Reserved for the TZSP encapsulation, as per request from
449 * Chris Waters <chris.waters@networkchemistry.com>
450 * TZSP is a generic encapsulation for any other link type,
451 * which includes a means to include meta-information
452 * with the packet, e.g. signal strength and channel
453 * for 802.11 packets.
454 */
455 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */
456  
457 /*
458 * BSD's ARCNET headers have the source host, destination host,
459 * and type at the beginning of the packet; that's what's handed
460 * up to userland via BPF.
461 *
462 * Linux's ARCNET headers, however, have a 2-byte offset field
463 * between the host IDs and the type; that's what's handed up
464 * to userland via PF_PACKET sockets.
465 *
466 * We therefore have to have separate DLT_ values for them.
467 */
468 #define DLT_ARCNET_LINUX 129 /* ARCNET */
469  
470 /*
471 * Juniper-private data link types, as per request from
472 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
473 * for passing on chassis-internal metainformation such as
474 * QOS profiles, etc..
475 */
476 #define DLT_JUNIPER_MLPPP 130
477 #define DLT_JUNIPER_MLFR 131
478 #define DLT_JUNIPER_ES 132
479 #define DLT_JUNIPER_GGSN 133
480 #define DLT_JUNIPER_MFR 134
481 #define DLT_JUNIPER_ATM2 135
482 #define DLT_JUNIPER_SERVICES 136
483 #define DLT_JUNIPER_ATM1 137
484  
485 /*
486 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund
487 * <dieter@apple.com>. The header that's presented is an Ethernet-like
488 * header:
489 *
490 * #define FIREWIRE_EUI64_LEN 8
491 * struct firewire_header {
492 * u_char firewire_dhost[FIREWIRE_EUI64_LEN];
493 * u_char firewire_shost[FIREWIRE_EUI64_LEN];
494 * u_short firewire_type;
495 * };
496 *
497 * with "firewire_type" being an Ethernet type value, rather than,
498 * for example, raw GASP frames being handed up.
499 */
500 #define DLT_APPLE_IP_OVER_IEEE1394 138
501  
502 /*
503 * Various SS7 encapsulations, as per a request from Jeff Morriss
504 * <jeff.morriss[AT]ulticom.com> and subsequent discussions.
505 */
506 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */
507 #define DLT_MTP2 140 /* MTP2, without pseudo-header */
508 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */
509 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */
510  
511 /*
512 * DOCSIS MAC frames.
513 */
514 #define DLT_DOCSIS 143
515  
516 /*
517 * Linux-IrDA packets. Protocol defined at http://www.irda.org.
518 * Those packets include IrLAP headers and above (IrLMP...), but
519 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy
520 * framing can be handled by the hardware and depend on the bitrate.
521 * This is exactly the format you would get capturing on a Linux-IrDA
522 * interface (irdaX), but not on a raw serial port.
523 * Note the capture is done in "Linux-cooked" mode, so each packet include
524 * a fake packet header (struct sll_header). This is because IrDA packet
525 * decoding is dependant on the direction of the packet (incomming or
526 * outgoing).
527 * When/if other platform implement IrDA capture, we may revisit the
528 * issue and define a real DLT_IRDA...
529 * Jean II
530 */
531 #define DLT_LINUX_IRDA 144
532  
533 /*
534 * Reserved for IBM SP switch and IBM Next Federation switch.
535 */
536 #define DLT_IBM_SP 145
537 #define DLT_IBM_SN 146
538  
539 /*
540 * Reserved for private use. If you have some link-layer header type
541 * that you want to use within your organization, with the capture files
542 * using that link-layer header type not ever be sent outside your
543 * organization, you can use these values.
544 *
545 * No libpcap release will use these for any purpose, nor will any
546 * tcpdump release use them, either.
547 *
548 * Do *NOT* use these in capture files that you expect anybody not using
549 * your private versions of capture-file-reading tools to read; in
550 * particular, do *NOT* use them in products, otherwise you may find that
551 * people won't be able to use tcpdump, or snort, or Ethereal, or... to
552 * read capture files from your firewall/intrusion detection/traffic
553 * monitoring/etc. appliance, or whatever product uses that DLT_ value,
554 * and you may also find that the developers of those applications will
555 * not accept patches to let them read those files.
556 *
557 * Also, do not use them if somebody might send you a capture using them
558 * for *their* private type and tools using them for *your* private type
559 * would have to read them.
560 *
561 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value,
562 * as per the comment above, and use the type you're given.
563 */
564 #define DLT_USER0 147
565 #define DLT_USER1 148
566 #define DLT_USER2 149
567 #define DLT_USER3 150
568 #define DLT_USER4 151
569 #define DLT_USER5 152
570 #define DLT_USER6 153
571 #define DLT_USER7 154
572 #define DLT_USER8 155
573 #define DLT_USER9 156
574 #define DLT_USER10 157
575 #define DLT_USER11 158
576 #define DLT_USER12 159
577 #define DLT_USER13 160
578 #define DLT_USER14 161
579 #define DLT_USER15 162
580  
581 /*
582 * For future use with 802.11 captures - defined by AbsoluteValue
583 * Systems to store a number of bits of link-layer information
584 * including radio information:
585 *
586 * http://www.shaftnet.org/~pizza/software/capturefrm.txt
587 *
588 * but it might be used by some non-AVS drivers now or in the
589 * future.
590 */
591 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */
592  
593 /*
594 * Juniper-private data link type, as per request from
595 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
596 * for passing on chassis-internal metainformation such as
597 * QOS profiles, etc..
598 */
599 #define DLT_JUNIPER_MONITOR 164
600  
601 /*
602 * BACnet MS/TP frames.
603 */
604 #define DLT_BACNET_MS_TP 165
605  
606 /*
607 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>.
608 *
609 * This is used in some OSes to allow a kernel socket filter to distinguish
610 * between incoming and outgoing packets, on a socket intended to
611 * supply pppd with outgoing packets so it can do dial-on-demand and
612 * hangup-on-lack-of-demand; incoming packets are filtered out so they
613 * don't cause pppd to hold the connection up (you don't want random
614 * input packets such as port scans, packets from old lost connections,
615 * etc. to force the connection to stay up).
616 *
617 * The first byte of the PPP header (0xff03) is modified to accomodate
618 * the direction - 0x00 = IN, 0x01 = OUT.
619 */
620 #define DLT_PPP_PPPD 166
621  
622 /*
623 * Names for backwards compatibility with older versions of some PPP
624 * software; new software should use DLT_PPP_PPPD.
625 */
626 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD
627 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD
628  
629 /*
630 * Juniper-private data link type, as per request from
631 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used
632 * for passing on chassis-internal metainformation such as
633 * QOS profiles, cookies, etc..
634 */
635 #define DLT_JUNIPER_PPPOE 167
636 #define DLT_JUNIPER_PPPOE_ATM 168
637  
638 #define DLT_GPRS_LLC 169 /* GPRS LLC */
639 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */
640 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */
641  
642 /*
643 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line
644 * monitoring equipment.
645 */
646 #define DLT_GCOM_T1E1 172
647 #define DLT_GCOM_SERIAL 173
648  
649 /*
650 * Juniper-private data link type, as per request from
651 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used
652 * for internal communication to Physical Interface Cards (PIC)
653 */
654 #define DLT_JUNIPER_PIC_PEER 174
655  
656 /*
657 * Link types requested by Gregor Maier <gregor@endace.com> of Endace
658 * Measurement Systems. They add an ERF header (see
659 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of
660 * the link-layer header.
661 */
662 #define DLT_ERF_ETH 175 /* Ethernet */
663 #define DLT_ERF_POS 176 /* Packet-over-SONET */
664  
665 /*
666 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD
667 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header
668 * includes additional information before the LAPD header, so it's
669 * not necessarily a generic LAPD header.
670 */
671 #define DLT_LINUX_LAPD 177
672  
673 /*
674 * Juniper-private data link type, as per request from
675 * Hannes Gredler <hannes@juniper.net>.
676 * The DLT_ are used for prepending meta-information
677 * like interface index, interface name
678 * before standard Ethernet, PPP, Frelay & C-HDLC Frames
679 */
680 #define DLT_JUNIPER_ETHER 178
681 #define DLT_JUNIPER_PPP 179
682 #define DLT_JUNIPER_FRELAY 180
683 #define DLT_JUNIPER_CHDLC 181
684  
685 /*
686 * Multi Link Frame Relay (FRF.16)
687 */
688 #define DLT_MFR 182
689  
690 /*
691 * Juniper-private data link type, as per request from
692 * Hannes Gredler <hannes@juniper.net>.
693 * The DLT_ is used for internal communication with a
694 * voice Adapter Card (PIC)
695 */
696 #define DLT_JUNIPER_VP 183
697  
698 /*
699 * Arinc 429 frames.
700 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
701 * Every frame contains a 32bit A429 label.
702 * More documentation on Arinc 429 can be found at
703 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
704 */
705 #define DLT_A429 184
706  
707 /*
708 * Arinc 653 Interpartition Communication messages.
709 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
710 * Please refer to the A653-1 standard for more information.
711 */
712 #define DLT_A653_ICM 185
713  
714 /*
715 * USB packets, beginning with a USB setup header; requested by
716 * Paolo Abeni <paolo.abeni@email.it>.
717 */
718 #define DLT_USB 186
719  
720 /*
721 * Bluetooth HCI UART transport layer (part H:4); requested by
722 * Paolo Abeni.
723 */
724 #define DLT_BLUETOOTH_HCI_H4 187
725  
726 /*
727 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz
728 * <cruz_petagay@bah.com>.
729 */
730 #define DLT_IEEE802_16_MAC_CPS 188
731  
732 /*
733 * USB packets, beginning with a Linux USB header; requested by
734 * Paolo Abeni <paolo.abeni@email.it>.
735 */
736 #define DLT_USB_LINUX 189
737  
738 /*
739 * Controller Area Network (CAN) v. 2.0B packets.
740 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
741 * Used to dump CAN packets coming from a CAN Vector board.
742 * More documentation on the CAN v2.0B frames can be found at
743 * http://www.can-cia.org/downloads/?269
744 */
745 #define DLT_CAN20B 190
746  
747 /*
748 * IEEE 802.15.4, with address fields padded, as is done by Linux
749 * drivers; requested by Juergen Schimmer.
750 */
751 #define DLT_IEEE802_15_4_LINUX 191
752  
753 /*
754 * Per Packet Information encapsulated packets.
755 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
756 */
757 #define DLT_PPI 192
758  
759 /*
760 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header;
761 * requested by Charles Clancy.
762 */
763 #define DLT_IEEE802_16_MAC_CPS_RADIO 193
764  
765 /*
766 * Juniper-private data link type, as per request from
767 * Hannes Gredler <hannes@juniper.net>.
768 * The DLT_ is used for internal communication with a
769 * integrated service module (ISM).
770 */
771 #define DLT_JUNIPER_ISM 194
772  
773 /*
774 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
775 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>.
776 * For this one, we expect the FCS to be present at the end of the frame;
777 * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used.
778 */
779 #define DLT_IEEE802_15_4 195
780  
781 /*
782 * Various link-layer types, with a pseudo-header, for SITA
783 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com).
784 */
785 #define DLT_SITA 196
786  
787 /*
788 * Various link-layer types, with a pseudo-header, for Endace DAG cards;
789 * encapsulates Endace ERF records. Requested by Stephen Donnelly
790 * <stephen@endace.com>.
791 */
792 #define DLT_ERF 197
793  
794 /*
795 * Special header prepended to Ethernet packets when capturing from a
796 * u10 Networks board. Requested by Phil Mulholland
797 * <phil@u10networks.com>.
798 */
799 #define DLT_RAIF1 198
800  
801 /*
802 * IPMB packet for IPMI, beginning with the I2C slave address, followed
803 * by the netFn and LUN, etc.. Requested by Chanthy Toeung
804 * <chanthy.toeung@ca.kontron.com>.
805 */
806 #define DLT_IPMB 199
807  
808 /*
809 * Juniper-private data link type, as per request from
810 * Hannes Gredler <hannes@juniper.net>.
811 * The DLT_ is used for capturing data on a secure tunnel interface.
812 */
813 #define DLT_JUNIPER_ST 200
814  
815 /*
816 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header
817 * that includes direction information; requested by Paolo Abeni.
818 */
819 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201
820  
821 /*
822 * AX.25 packet with a 1-byte KISS header; see
823 *
824 * http://www.ax25.net/kiss.htm
825 *
826 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>.
827 */
828 #define DLT_AX25_KISS 202
829  
830 /*
831 * LAPD packets from an ISDN channel, starting with the address field,
832 * with no pseudo-header.
833 * Requested by Varuna De Silva <varunax@gmail.com>.
834 */
835 #define DLT_LAPD 203
836  
837 /*
838 * Variants of various link-layer headers, with a one-byte direction
839 * pseudo-header prepended - zero means "received by this host",
840 * non-zero (any non-zero value) means "sent by this host" - as per
841 * Will Barker <w.barker@zen.co.uk>.
842 */
843 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */
844 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */
845 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */
846 #define DLT_LAPB_WITH_DIR 207 /* LAPB */
847  
848 /*
849 * 208 is reserved for an as-yet-unspecified proprietary link-layer
850 * type, as requested by Will Barker.
851 */
852  
853 /*
854 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman
855 * <avn@pigeonpoint.com>.
856 */
857 #define DLT_IPMB_LINUX 209
858  
859 /*
860 * FlexRay automotive bus - http://www.flexray.com/ - as requested
861 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
862 */
863 #define DLT_FLEXRAY 210
864  
865 /*
866 * Media Oriented Systems Transport (MOST) bus for multimedia
867 * transport - http://www.mostcooperation.com/ - as requested
868 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
869 */
870 #define DLT_MOST 211
871  
872 /*
873 * Local Interconnect Network (LIN) bus for vehicle networks -
874 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber
875 * <hannes.kaelber@x2e.de>.
876 */
877 #define DLT_LIN 212
878  
879 /*
880 * X2E-private data link type used for serial line capture,
881 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
882 */
883 #define DLT_X2E_SERIAL 213
884  
885 /*
886 * X2E-private data link type used for the Xoraya data logger
887 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
888 */
889 #define DLT_X2E_XORAYA 214
890  
891 /*
892 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
893 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets
894 * of 0 as preamble, one octet of SFD, one octet of frame length+
895 * reserved bit, and then the MAC-layer data, starting with the
896 * frame control field).
897 *
898 * Requested by Max Filippov <jcmvbkbc@gmail.com>.
899 */
900 #define DLT_IEEE802_15_4_NONASK_PHY 215
901  
902 /*
903 * David Gibson <david@gibson.dropbear.id.au> requested this for
904 * captures from the Linux kernel /dev/input/eventN devices. This
905 * is used to communicate keystrokes and mouse movements from the
906 * Linux kernel to display systems, such as Xorg.
907 */
908 #define DLT_LINUX_EVDEV 216
909  
910 /*
911 * GSM Um and Abis interfaces, preceded by a "gsmtap" header.
912 *
913 * Requested by Harald Welte <laforge@gnumonks.org>.
914 */
915 #define DLT_GSMTAP_UM 217
916 #define DLT_GSMTAP_ABIS 218
917  
918 /*
919 * MPLS, with an MPLS label as the link-layer header.
920 * Requested by Michele Marchetto <michele@openbsd.org> on behalf
921 * of OpenBSD.
922 */
923 #define DLT_MPLS 219
924  
925 /*
926 * USB packets, beginning with a Linux USB header, with the USB header
927 * padded to 64 bytes; required for memory-mapped access.
928 */
929 #define DLT_USB_LINUX_MMAPPED 220
930  
931 /*
932 * DECT packets, with a pseudo-header; requested by
933 * Matthias Wenzel <tcpdump@mazzoo.de>.
934 */
935 #define DLT_DECT 221
936  
937 /*
938 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov>
939 * Date: Mon, 11 May 2009 11:18:30 -0500
940 *
941 * DLT_AOS. We need it for AOS Space Data Link Protocol.
942 * I have already written dissectors for but need an OK from
943 * legal before I can submit a patch.
944 *
945 */
946 #define DLT_AOS 222
947  
948 /*
949 * Wireless HART (Highway Addressable Remote Transducer)
950 * From the HART Communication Foundation
951 * IES/PAS 62591
952 *
953 * Requested by Sam Roberts <vieuxtech@gmail.com>.
954 */
955 #define DLT_WIHART 223
956  
957 /*
958 * Fibre Channel FC-2 frames, beginning with a Frame_Header.
959 * Requested by Kahou Lei <kahou82@gmail.com>.
960 */
961 #define DLT_FC_2 224
962  
963 /*
964 * Fibre Channel FC-2 frames, beginning with an encoding of the
965 * SOF, and ending with an encoding of the EOF.
966 *
967 * The encodings represent the frame delimiters as 4-byte sequences
968 * representing the corresponding ordered sets, with K28.5
969 * represented as 0xBC, and the D symbols as the corresponding
970 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2,
971 * is represented as 0xBC 0xB5 0x55 0x55.
972 *
973 * Requested by Kahou Lei <kahou82@gmail.com>.
974 */
975 #define DLT_FC_2_WITH_FRAME_DELIMS 225
976  
977 /*
978 * Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>.
979 *
980 * The pseudo-header starts with a one-byte version number; for version 2,
981 * the pseudo-header is:
982 *
983 * struct dl_ipnetinfo {
984 * u_int8_t dli_version;
985 * u_int8_t dli_family;
986 * u_int16_t dli_htype;
987 * u_int32_t dli_pktlen;
988 * u_int32_t dli_ifindex;
989 * u_int32_t dli_grifindex;
990 * u_int32_t dli_zsrc;
991 * u_int32_t dli_zdst;
992 * };
993 *
994 * dli_version is 2 for the current version of the pseudo-header.
995 *
996 * dli_family is a Solaris address family value, so it's 2 for IPv4
997 * and 26 for IPv6.
998 *
999 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing
1000 * packets, and 2 for packets arriving from another zone on the same
1001 * machine.
1002 *
1003 * dli_pktlen is the length of the packet data following the pseudo-header
1004 * (so the captured length minus dli_pktlen is the length of the
1005 * pseudo-header, assuming the entire pseudo-header was captured).
1006 *
1007 * dli_ifindex is the interface index of the interface on which the
1008 * packet arrived.
1009 *
1010 * dli_grifindex is the group interface index number (for IPMP interfaces).
1011 *
1012 * dli_zsrc is the zone identifier for the source of the packet.
1013 *
1014 * dli_zdst is the zone identifier for the destination of the packet.
1015 *
1016 * A zone number of 0 is the global zone; a zone number of 0xffffffff
1017 * means that the packet arrived from another host on the network, not
1018 * from another zone on the same machine.
1019 *
1020 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates
1021 * which of those it is.
1022 */
1023 #define DLT_IPNET 226
1024  
1025 /*
1026 * CAN (Controller Area Network) frames, with a pseudo-header as supplied
1027 * by Linux SocketCAN. See Documentation/networking/can.txt in the Linux
1028 * source.
1029 *
1030 * Requested by Felix Obenhuber <felix@obenhuber.de>.
1031 */
1032 #define DLT_CAN_SOCKETCAN 227
1033  
1034 /*
1035 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies
1036 * whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>.
1037 */
1038 #define DLT_IPV4 228
1039 #define DLT_IPV6 229
1040  
1041 /*
1042 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
1043 * nothing), and with no FCS at the end of the frame; requested by
1044 * Jon Smirl <jonsmirl@gmail.com>.
1045 */
1046 #define DLT_IEEE802_15_4_NOFCS 230
1047  
1048 /*
1049 * Raw D-Bus:
1050 *
1051 * http://www.freedesktop.org/wiki/Software/dbus
1052 *
1053 * messages:
1054 *
1055 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
1056 *
1057 * starting with the endianness flag, followed by the message type, etc.,
1058 * but without the authentication handshake before the message sequence:
1059 *
1060 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol
1061 *
1062 * Requested by Martin Vidner <martin@vidner.net>.
1063 */
1064 #define DLT_DBUS 231
1065  
1066 /*
1067 * Juniper-private data link type, as per request from
1068 * Hannes Gredler <hannes@juniper.net>.
1069 */
1070 #define DLT_JUNIPER_VS 232
1071 #define DLT_JUNIPER_SRX_E2E 233
1072 #define DLT_JUNIPER_FIBRECHANNEL 234
1073  
1074 /*
1075 * DVB-CI (DVB Common Interface for communication between a PC Card
1076 * module and a DVB receiver). See
1077 *
1078 * http://www.kaiser.cx/pcap-dvbci.html
1079 *
1080 * for the specification.
1081 *
1082 * Requested by Martin Kaiser <martin@kaiser.cx>.
1083 */
1084 #define DLT_DVB_CI 235
1085  
1086 /*
1087 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but
1088 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel
1089 * <hans-christoph.schemmel@cinterion.com>.
1090 */
1091 #define DLT_MUX27010 236
1092  
1093 /*
1094 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray
1095 * <barisdemiray@gmail.com>.
1096 */
1097 #define DLT_STANAG_5066_D_PDU 237
1098  
1099 /*
1100 * Juniper-private data link type, as per request from
1101 * Hannes Gredler <hannes@juniper.net>.
1102 */
1103 #define DLT_JUNIPER_ATM_CEMIC 238
1104  
1105 /*
1106 * NetFilter LOG messages
1107 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets)
1108 *
1109 * Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl>
1110 */
1111 #define DLT_NFLOG 239
1112  
1113 /*
1114 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
1115 * for Ethernet packets with a 4-byte pseudo-header and always
1116 * with the payload including the FCS, as supplied by their
1117 * netANALYZER hardware and software.
1118 *
1119 * Requested by Holger P. Frommer <HPfrommer@hilscher.com>
1120 */
1121 #define DLT_NETANALYZER 240
1122  
1123 /*
1124 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
1125 * for Ethernet packets with a 4-byte pseudo-header and FCS and
1126 * with the Ethernet header preceded by 7 bytes of preamble and
1127 * 1 byte of SFD, as supplied by their netANALYZER hardware and
1128 * software.
1129 *
1130 * Requested by Holger P. Frommer <HPfrommer@hilscher.com>
1131 */
1132 #define DLT_NETANALYZER_TRANSPARENT 241
1133  
1134 /*
1135 * IP-over-InfiniBand, as specified by RFC 4391.
1136 *
1137 * Requested by Petr Sumbera <petr.sumbera@oracle.com>.
1138 */
1139 #define DLT_IPOIB 242
1140  
1141 /*
1142 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0).
1143 *
1144 * Requested by Guy Martin <gmsoft@tuxicoman.be>.
1145 */
1146 #define DLT_MPEG_2_TS 243
1147  
1148 /*
1149 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as
1150 * used by their ng40 protocol tester.
1151 *
1152 * Requested by Jens Grimmer <jens.grimmer@ng4t.com>.
1153 */
1154 #define DLT_NG40 244
1155  
1156 /*
1157 * Pseudo-header giving adapter number and flags, followed by an NFC
1158 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU,
1159 * as specified by NFC Forum Logical Link Control Protocol Technical
1160 * Specification LLCP 1.1.
1161 *
1162 * Requested by Mike Wakerly <mikey@google.com>.
1163 */
1164 #define DLT_NFC_LLCP 245
1165  
1166 /*
1167 * 245 is used as LINKTYPE_PFSYNC; do not use it for any other purpose.
1168 *
1169 * DLT_PFSYNC has different values on different platforms, and all of
1170 * them collide with something used elsewhere. On platforms that
1171 * don't already define it, define it as 245.
1172 */
1173 #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__)
1174 #define DLT_PFSYNC 246
1175 #endif
1176  
1177 /*
1178 * Raw InfiniBand packets, starting with the Local Routing Header.
1179 *
1180 * Requested by Oren Kladnitsky <orenk@mellanox.com>.
1181 */
1182 #define DLT_INFINIBAND 247
1183  
1184 /*
1185 * SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6).
1186 *
1187 * Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>.
1188 */
1189 #define DLT_SCTP 248
1190  
1191 /*
1192 * USB packets, beginning with a USBPcap header.
1193 *
1194 * Requested by Tomasz Mon <desowin@gmail.com>
1195 */
1196 #define DLT_USBPCAP 249
1197  
1198 /*
1199 * Schweitzer Engineering Laboratories "RTAC" product serial-line
1200 * packets.
1201 *
1202 * Requested by Chris Bontje <chris_bontje@selinc.com>.
1203 */
1204 #define DLT_RTAC_SERIAL 250
1205  
1206 /*
1207 * Bluetooth Low Energy air interface link-layer packets.
1208 *
1209 * Requested by Mike Kershaw <dragorn@kismetwireless.net>.
1210 */
1211 #define DLT_BLUETOOTH_LE_LL 251
1212  
1213 /*
1214 * DLT type for upper-protocol layer PDU saves from wireshark.
1215 *
1216 * the actual contents are determined by two TAGs stored with each
1217 * packet:
1218 * EXP_PDU_TAG_LINKTYPE the link type (LINKTYPE_ value) of the
1219 * original packet.
1220 *
1221 * EXP_PDU_TAG_PROTO_NAME the name of the wireshark dissector
1222 * that can make sense of the data stored.
1223 */
1224 #define DLT_WIRESHARK_UPPER_PDU 252
1225  
1226 /*
1227 * DLT type for the netlink protocol (nlmon devices).
1228 */
1229 #define DLT_NETLINK 253
1230  
1231 /*
1232 * Bluetooth Linux Monitor headers for the BlueZ stack.
1233 */
1234 #define DLT_BLUETOOTH_LINUX_MONITOR 254
1235  
1236 /*
1237 * Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as
1238 * captured by Ubertooth.
1239 */
1240 #define DLT_BLUETOOTH_BREDR_BB 255
1241  
1242 /*
1243 * Bluetooth Low Energy link layer packets, as captured by Ubertooth.
1244 */
1245 #define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256
1246  
1247 /*
1248 * PROFIBUS data link layer.
1249 */
1250 #define DLT_PROFIBUS_DL 257
1251  
1252 /*
1253 * Apple's DLT_PKTAP headers.
1254 *
1255 * Sadly, the folks at Apple either had no clue that the DLT_USERn values
1256 * are for internal use within an organization and partners only, and
1257 * didn't know that the right way to get a link-layer header type is to
1258 * ask tcpdump.org for one, or knew and didn't care, so they just
1259 * used DLT_USER2, which causes problems for everything except for
1260 * their version of tcpdump.
1261 *
1262 * So I'll just give them one; hopefully this will show up in a
1263 * libpcap release in time for them to get this into 10.10 Big Sur
1264 * or whatever Mavericks' successor is called. LINKTYPE_PKTAP
1265 * will be 258 *even on OS X*; that is *intentional*, so that
1266 * PKTAP files look the same on *all* OSes (different OSes can have
1267 * different numerical values for a given DLT_, but *MUST NOT* have
1268 * different values for what goes in a file, as files can be moved
1269 * between OSes!).
1270 *
1271 * When capturing, on a system with a Darwin-based OS, on a device
1272 * that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this
1273 * version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP,
1274 * and that will continue to be DLT_USER2 on Darwin-based OSes. That way,
1275 * binary compatibility with Mavericks is preserved for programs using
1276 * this version of libpcap. This does mean that if you were using
1277 * DLT_USER2 for some capture device on OS X, you can't do so with
1278 * this version of libpcap, just as you can't with Apple's libpcap -
1279 * on OS X, they define DLT_PKTAP to be DLT_USER2, so programs won't
1280 * be able to distinguish between PKTAP and whatever you were using
1281 * DLT_USER2 for.
1282 *
1283 * If the program saves the capture to a file using this version of
1284 * libpcap's pcap_dump code, the LINKTYPE_ value in the file will be
1285 * LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes.
1286 * That way, the file will *not* be a DLT_USER2 file. That means
1287 * that the latest version of tcpdump, when built with this version
1288 * of libpcap, and sufficiently recent versions of Wireshark will
1289 * be able to read those files and interpret them correctly; however,
1290 * Apple's version of tcpdump in OS X 10.9 won't be able to handle
1291 * them. (Hopefully, Apple will pick up this version of libpcap,
1292 * and the corresponding version of tcpdump, so that tcpdump will
1293 * be able to handle the old LINKTYPE_USER2 captures *and* the new
1294 * LINKTYPE_PKTAP captures.)
1295 */
1296 #ifdef __APPLE__
1297 #define DLT_PKTAP DLT_USER2
1298 #else
1299 #define DLT_PKTAP 258
1300 #endif
1301  
1302 /*
1303 * Ethernet packets preceded by a header giving the last 6 octets
1304 * of the preamble specified by 802.3-2012 Clause 65, section
1305 * 65.1.3.2 "Transmit".
1306 */
1307 #define DLT_EPON 259
1308  
1309 /*
1310 * IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format"
1311 * in the PICMG HPM.2 specification.
1312 */
1313 #define DLT_IPMI_HPM_2 260
1314  
1315 /*
1316 * per Joshua Wright <jwright@hasborg.com>, formats for Zwave captures.
1317 */
1318 #define DLT_ZWAVE_R1_R2 261
1319 #define DLT_ZWAVE_R3 262
1320  
1321 /*
1322 * per Steve Karg <skarg@users.sourceforge.net>, formats for Wattstopper
1323 * Digital Lighting Management room bus serial protocol captures.
1324 */
1325 #define DLT_WATTSTOPPER_DLM 263
1326  
1327 #define DLT_MATCHING_MAX 263 /* highest value in the "matching" range */
1328  
1329 /*
1330 * DLT and savefile link type values are split into a class and
1331 * a member of that class. A class value of 0 indicates a regular
1332 * DLT_/LINKTYPE_ value.
1333 */
1334 #define DLT_CLASS(x) ((x) & 0x03ff0000)
1335  
1336 /*
1337 * NetBSD-specific generic "raw" link type. The class value indicates
1338 * that this is the generic raw type, and the lower 16 bits are the
1339 * address family we're dealing with. Those values are NetBSD-specific;
1340 * do not assume that they correspond to AF_ values for your operating
1341 * system.
1342 */
1343 #define DLT_CLASS_NETBSD_RAWAF 0x02240000
1344 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af))
1345 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff)
1346 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF)
1347  
1348  
1349 /*
1350 * The instruction encodings.
1351 *
1352 * Please inform tcpdump-workers@lists.tcpdump.org if you use any
1353 * of the reserved values, so that we can note that they're used
1354 * (and perhaps implement it in the reference BPF implementation
1355 * and encourage its implementation elsewhere).
1356 */
1357  
1358 /*
1359 * The upper 8 bits of the opcode aren't used. BSD/OS used 0x8000.
1360 */
1361  
1362 /* instruction classes */
1363 #define BPF_CLASS(code) ((code) & 0x07)
1364 #define BPF_LD 0x00
1365 #define BPF_LDX 0x01
1366 #define BPF_ST 0x02
1367 #define BPF_STX 0x03
1368 #define BPF_ALU 0x04
1369 #define BPF_JMP 0x05
1370 #define BPF_RET 0x06
1371 #define BPF_MISC 0x07
1372  
1373 /* ld/ldx fields */
1374 #define BPF_SIZE(code) ((code) & 0x18)
1375 #define BPF_W 0x00
1376 #define BPF_H 0x08
1377 #define BPF_B 0x10
1378 /* 0x18 reserved; used by BSD/OS */
1379 #define BPF_MODE(code) ((code) & 0xe0)
1380 #define BPF_IMM 0x00
1381 #define BPF_ABS 0x20
1382 #define BPF_IND 0x40
1383 #define BPF_MEM 0x60
1384 #define BPF_LEN 0x80
1385 #define BPF_MSH 0xa0
1386 /* 0xc0 reserved; used by BSD/OS */
1387 /* 0xe0 reserved; used by BSD/OS */
1388  
1389 /* alu/jmp fields */
1390 #define BPF_OP(code) ((code) & 0xf0)
1391 #define BPF_ADD 0x00
1392 #define BPF_SUB 0x10
1393 #define BPF_MUL 0x20
1394 #define BPF_DIV 0x30
1395 #define BPF_OR 0x40
1396 #define BPF_AND 0x50
1397 #define BPF_LSH 0x60
1398 #define BPF_RSH 0x70
1399 #define BPF_NEG 0x80
1400 #define BPF_MOD 0x90
1401 #define BPF_XOR 0xa0
1402 /* 0xb0 reserved */
1403 /* 0xc0 reserved */
1404 /* 0xd0 reserved */
1405 /* 0xe0 reserved */
1406 /* 0xf0 reserved */
1407  
1408 #define BPF_JA 0x00
1409 #define BPF_JEQ 0x10
1410 #define BPF_JGT 0x20
1411 #define BPF_JGE 0x30
1412 #define BPF_JSET 0x40
1413 /* 0x50 reserved; used on BSD/OS */
1414 /* 0x60 reserved */
1415 /* 0x70 reserved */
1416 /* 0x80 reserved */
1417 /* 0x90 reserved */
1418 /* 0xa0 reserved */
1419 /* 0xb0 reserved */
1420 /* 0xc0 reserved */
1421 /* 0xd0 reserved */
1422 /* 0xe0 reserved */
1423 /* 0xf0 reserved */
1424 #define BPF_SRC(code) ((code) & 0x08)
1425 #define BPF_K 0x00
1426 #define BPF_X 0x08
1427  
1428 /* ret - BPF_K and BPF_X also apply */
1429 #define BPF_RVAL(code) ((code) & 0x18)
1430 #define BPF_A 0x10
1431 /* 0x18 reserved */
1432  
1433 /* misc */
1434 #define BPF_MISCOP(code) ((code) & 0xf8)
1435 #define BPF_TAX 0x00
1436 /* 0x08 reserved */
1437 /* 0x10 reserved */
1438 /* 0x18 reserved */
1439 /* #define BPF_COP 0x20 NetBSD "coprocessor" extensions */
1440 /* 0x28 reserved */
1441 /* 0x30 reserved */
1442 /* 0x38 reserved */
1443 /* #define BPF_COPX 0x40 NetBSD "coprocessor" extensions */
1444 /* also used on BSD/OS */
1445 /* 0x48 reserved */
1446 /* 0x50 reserved */
1447 /* 0x58 reserved */
1448 /* 0x60 reserved */
1449 /* 0x68 reserved */
1450 /* 0x70 reserved */
1451 /* 0x78 reserved */
1452 #define BPF_TXA 0x80
1453 /* 0x88 reserved */
1454 /* 0x90 reserved */
1455 /* 0x98 reserved */
1456 /* 0xa0 reserved */
1457 /* 0xa8 reserved */
1458 /* 0xb0 reserved */
1459 /* 0xb8 reserved */
1460 /* 0xc0 reserved; used on BSD/OS */
1461 /* 0xc8 reserved */
1462 /* 0xd0 reserved */
1463 /* 0xd8 reserved */
1464 /* 0xe0 reserved */
1465 /* 0xe8 reserved */
1466 /* 0xf0 reserved */
1467 /* 0xf8 reserved */
1468  
1469 /*
1470 * The instruction data structure.
1471 */
1472 struct bpf_insn {
1473 u_short code;
1474 u_char jt;
1475 u_char jf;
1476 bpf_u_int32 k;
1477 };
1478  
1479 /*
1480 * Auxiliary data, for use when interpreting a filter intended for the
1481 * Linux kernel when the kernel rejects the filter (requiring us to
1482 * run it in userland). It contains VLAN tag information.
1483 */
1484 struct bpf_aux_data {
1485 u_short vlan_tag_present;
1486 u_short vlan_tag;
1487 };
1488  
1489 /*
1490 * Macros for insn array initializers.
1491 */
1492 #ifndef BPF_STMT
1493 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k }
1494 #endif
1495 #ifndef BPF_JUMP
1496 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k }
1497 #endif
1498  
1499 #if __STDC__ || defined(__cplusplus)
1500 extern int bpf_validate(const struct bpf_insn *, int);
1501 extern u_int bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int);
1502 extern u_int bpf_filter_with_aux_data(const struct bpf_insn *, const u_char *, u_int, u_int, const struct bpf_aux_data *);
1503 #else
1504 extern int bpf_validate();
1505 extern u_int bpf_filter();
1506 extern u_int bpf_filter();
1507 #endif
1508  
1509 /*
1510 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST).
1511 */
1512 #define BPF_MEMWORDS 16
1513  
1514 #ifdef __cplusplus
1515 }
1516 #endif
1517  
1518 #endif /* !defined(_NET_BPF_H_) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) */