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 35 #ifndef _NET_DLT_H_ 36 #define _NET_DLT_H_ 37 38 /* 39 * Link-layer header type codes. 40 * 41 * Do *NOT* add new values to this list without asking 42 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run 43 * the risk of using a value that's already being used for some other 44 * purpose, and of having tools that read libpcap-format captures not 45 * being able to handle captures with your new DLT_ value, with no hope 46 * that they will ever be changed to do so (as that would destroy their 47 * ability to read captures using that value for that other purpose). 48 * 49 * See 50 * 51 * https://www.tcpdump.org/linktypes.html 52 * 53 * for detailed descriptions of some of these link-layer header types. 54 */ 55 56 /* 57 * These are the types that are the same on all platforms, and that 58 * have been defined by <net/bpf.h> for ages. 59 */ 60 #define DLT_NULL 0 /* BSD loopback encapsulation */ 61 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 62 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 63 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 64 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 65 #define DLT_CHAOS 5 /* Chaos */ 66 #define DLT_IEEE802 6 /* 802.5 Token Ring */ 67 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ 68 #define DLT_SLIP 8 /* Serial Line IP */ 69 #define DLT_PPP 9 /* Point-to-point Protocol */ 70 #define DLT_FDDI 10 /* FDDI */ 71 72 /* 73 * These are types that are different on some platforms, and that 74 * have been defined by <net/bpf.h> for ages. We use #ifdefs to 75 * detect the BSDs that define them differently from the traditional 76 * libpcap <net/bpf.h> 77 * 78 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, 79 * but I don't know what the right #define is for BSD/OS. 80 */ 81 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ 82 83 #ifdef __OpenBSD__ 84 #define DLT_RAW 14 /* raw IP */ 85 #else 86 #define DLT_RAW 12 /* raw IP */ 87 #endif 88 89 /* 90 * Given that the only OS that currently generates BSD/OS SLIP or PPP 91 * is, well, BSD/OS, arguably everybody should have chosen its values 92 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they 93 * didn't. So it goes. 94 */ 95 #if defined(__NetBSD__) || defined(__FreeBSD__) 96 #ifndef DLT_SLIP_BSDOS 97 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ 98 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ 99 #endif 100 #else 101 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 102 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 103 #endif 104 105 /* 106 * NetBSD uses 15 for HIPPI. 107 * 108 * From a quick look at sys/net/if_hippi.h and sys/net/if_hippisubr.c 109 * in an older version of NetBSD , the header appears to be: 110 * 111 * a 1-byte ULP field (ULP-id)? 112 * 113 * a 1-byte flags field; 114 * 115 * a 2-byte "offsets" field; 116 * 117 * a 4-byte "D2 length" field (D2_Size?); 118 * 119 * a 4-byte "destination switch" field (or a 1-byte field 120 * containing the Forwarding Class, Double_Wide, and Message_Type 121 * sub fields, followed by a 3-byte Destination_Switch_Address 122 * field?, HIPPI-LE 3.4-style?); 123 * 124 * a 4-byte "source switch" field (or a 1-byte field containing the 125 * Destination_Address_type and Source_Address_Type fields, followed 126 * by a 3-byte Source_Switch_Address field, HIPPI-LE 3.4-style?); 127 * 128 * a 2-byte reserved field; 129 * 130 * a 6-byte destination address field; 131 * 132 * a 2-byte "local admin" field; 133 * 134 * a 6-byte source address field; 135 * 136 * followed by an 802.2 LLC header. 137 * 138 * This looks somewhat like something derived from the HIPPI-FP 4.4 139 * Header_Area, followed an HIPPI-FP 4.4 D1_Area containing a D1 data set 140 * with the header in HIPPI-LE 3.4 (ANSI X3.218-1993), followed by an 141 * HIPPI-FP 4.4 D2_Area (with no Offset) containing the 802.2 LLC header 142 * and payload? Or does the "offsets" field contain the D2_Offset, 143 * with that many bytes of offset before the payload? 144 * 145 * See http://wotug.org/parallel/standards/hippi/ for an archive of 146 * HIPPI specifications. 147 * 148 * RFC 2067 imposes some additional restrictions. It says that the 149 * Offset is always zero 150 * 151 * HIPPI is long-gone, and the source files found in an older version 152 * of NetBSD don't appear to be in the main CVS branch, so we may never 153 * see a capture with this link-layer type. 154 */ 155 #if defined(__NetBSD__) 156 #define DLT_HIPPI 15 /* HIPPI */ 157 #endif 158 159 /* 160 * NetBSD uses 16 for DLT_HDLC; see below. 161 * BSD/OS uses it for PPP; see above. 162 * As far as I know, no other OS uses it for anything; don't use it 163 * for anything else. 164 */ 165 166 /* 167 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is. 168 * 169 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG 170 * as 117 so that pflog captures would use a link-layer header type 171 * value that didn't collide with any other values. On all 172 * platforms other than OpenBSD, we defined DLT_PFLOG as 117, 173 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG. 174 * 175 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well. 176 * 177 * Don't use 17 for anything else. 178 */ 179 180 /* 181 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and 182 * macOS; don't use it for anything else. (FreeBSD uses 121, which 183 * collides with DLT_HHDLC, even though it doesn't use 18 for 184 * anything and doesn't appear to have ever used it for anything.) 185 * 186 * We define it as 18 on those platforms; it is, unfortunately, used 187 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC 188 * in general. As the packet format for it, like that for 189 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent, 190 * we don't support printing it in tcpdump except on OSes that 191 * have the relevant header files, so it's not that useful on 192 * other platforms. 193 */ 194 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__) 195 #define DLT_PFSYNC 18 196 #endif 197 198 #define DLT_ATM_CLIP 19 /* Linux Classical IP over ATM */ 199 200 /* 201 * Apparently Redback uses this for its SmartEdge 400/800. I hope 202 * nobody else decided to use it, too. 203 */ 204 #define DLT_REDBACK_SMARTEDGE 32 205 206 /* 207 * These values are defined by NetBSD; other platforms should refrain from 208 * using them for other purposes, so that NetBSD savefiles with link 209 * types of 50 or 51 can be read as this type on all platforms. 210 */ 211 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 212 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 213 214 /* 215 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 216 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 217 * header has 6 bytes of unknown data, something that appears to be an 218 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 219 * I've seen. 220 */ 221 #define DLT_SYMANTEC_FIREWALL 99 222 223 /* 224 * Values between 100 and 103 are used in capture file headers as 225 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 226 * that differ between platforms; don't use those values for new DLT_ 227 * new types. 228 */ 229 230 /* 231 * Values starting with 104 are used for newly-assigned link-layer 232 * header type values; for those link-layer header types, the DLT_ 233 * value returned by pcap_datalink() and passed to pcap_open_dead(), 234 * and the LINKTYPE_ value that appears in capture files, are the 235 * same. 236 * 237 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 238 * the highest such value. 239 */ 240 #define DLT_MATCHING_MIN 104 241 242 /* 243 * This value was defined by libpcap 0.5; platforms that have defined 244 * it with a different value should define it here with that value - 245 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 246 * whatever value that happens to be, so programs will correctly 247 * handle files with that link type regardless of the value of 248 * DLT_C_HDLC. 249 * 250 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 251 * compatibility with programs written for BSD/OS. 252 * 253 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 254 * for source compatibility with programs written for libpcap 0.5. 255 */ 256 #define DLT_C_HDLC 104 /* Cisco HDLC */ 257 #define DLT_CHDLC DLT_C_HDLC 258 259 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 260 261 /* 262 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, 263 * except when it isn't. (I.e., sometimes it's just raw IP, and 264 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, 265 * so that we don't have to worry about the link-layer header.) 266 */ 267 268 /* 269 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 270 * with other values. 271 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 272 * (DLCI, etc.). 273 */ 274 #define DLT_FRELAY 107 275 276 /* 277 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 278 * that the AF_ type in the link-layer header is in network byte order. 279 * 280 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so 281 * we don't use 12 for it in OSes other than OpenBSD; instead, we 282 * use the same value as LINKTYPE_LOOP. 283 */ 284 #ifdef __OpenBSD__ 285 #define DLT_LOOP 12 286 #else 287 #define DLT_LOOP 108 288 #endif 289 290 /* 291 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 292 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 293 * than OpenBSD; instead, we use the same value as LINKTYPE_ENC. 294 */ 295 #ifdef __OpenBSD__ 296 #define DLT_ENC 13 297 #else 298 #define DLT_ENC 109 299 #endif 300 301 /* 302 * Values 110 and 111 are reserved for use in capture file headers 303 * as link-layer types corresponding to DLT_ types that might differ 304 * between platforms; don't use those values for new DLT_ types 305 * other than the corresponding DLT_ types. 306 */ 307 308 /* 309 * NetBSD uses 16 for (Cisco) "HDLC framing". For other platforms, 310 * we define it to have the same value as LINKTYPE_NETBSD_HDLC. 311 */ 312 #if defined(__NetBSD__) 313 #define DLT_HDLC 16 /* Cisco HDLC */ 314 #else 315 #define DLT_HDLC 112 316 #endif 317 318 /* 319 * Linux cooked sockets. 320 */ 321 #define DLT_LINUX_SLL 113 322 323 /* 324 * Apple LocalTalk hardware. 325 */ 326 #define DLT_LTALK 114 327 328 /* 329 * Acorn Econet. 330 */ 331 #define DLT_ECONET 115 332 333 /* 334 * Reserved for use with OpenBSD ipfilter. 335 */ 336 #define DLT_IPFILTER 116 337 338 /* 339 * OpenBSD DLT_PFLOG. 340 */ 341 #define DLT_PFLOG 117 342 343 /* 344 * Registered for Cisco-internal use. 345 */ 346 #define DLT_CISCO_IOS 118 347 348 /* 349 * For 802.11 cards using the Prism II chips, with a link-layer 350 * header including Prism monitor mode information plus an 802.11 351 * header. 352 */ 353 #define DLT_PRISM_HEADER 119 354 355 /* 356 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 357 * (see Doug Ambrisko's FreeBSD patches). 358 */ 359 #define DLT_AIRONET_HEADER 120 360 361 /* 362 * Sigh. 363 * 364 * 121 was reserved for Siemens HiPath HDLC on 2002-01-25, as 365 * requested by Tomas Kukosa. 366 * 367 * On 2004-02-25, a FreeBSD checkin to sys/net/bpf.h was made that 368 * assigned 121 as DLT_PFSYNC. In current versions, its libpcap 369 * does DLT_ <-> LINKTYPE_ mapping, mapping DLT_PFSYNC to a 370 * LINKTYPE_PFSYNC value of 246, so it should write out DLT_PFSYNC 371 * dump files with 246 as the link-layer header type. (Earlier 372 * versions might not have done mapping, in which case they would 373 * have written them out with a link-layer header type of 121.) 374 * 375 * OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC; 376 * its libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would 377 * write out DLT_PFSYNC dump files with use 18 as the link-layer 378 * header type. 379 * 380 * NetBSD, DragonFly BSD, and Darwin also use 18 for DLT_PFSYNC; in 381 * current versions, their libpcaps do DLT_ <-> LINKTYPE_ mapping, 382 * mapping DLT_PFSYNC to a LINKTYPE_PFSYNC value of 246, so they 383 * should write out DLT_PFSYNC dump files with 246 as the link-layer 384 * header type. (Earlier versions might not have done mapping, 385 * in which case they'd work the same way OpenBSD does, writing 386 * them out with a link-layer header type of 18.) 387 * 388 * We'll define DLT_PFSYNC as: 389 * 390 * 18 on NetBSD, OpenBSD, DragonFly BSD, and Darwin; 391 * 392 * 121 on FreeBSD; 393 * 394 * 246 everywhere else. 395 * 396 * We'll define DLT_HHDLC as 121 on everything except for FreeBSD; 397 * anybody who wants to compile, on FreeBSD, code that uses DLT_HHDLC 398 * is out of luck. 399 * 400 * We'll define LINKTYPE_PFSYNC as 246 on *all* platforms, so that 401 * savefiles written using *this* code won't use 18 or 121 for PFSYNC, 402 * they'll all use 246. 403 * 404 * Code that uses pcap_datalink() to determine the link-layer header 405 * type of a savefile won't, when built and run on FreeBSD, be able 406 * to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC capture 407 * files, as pcap_datalink() will give 121 for both of them. Code 408 * that doesn't, such as the code in Wireshark, will be able to 409 * distinguish between them. 410 * 411 * FreeBSD's libpcap won't map a link-layer header type of 18 - i.e., 412 * DLT_PFSYNC files from OpenBSD and possibly older versions of NetBSD, 413 * DragonFly BSD, and macOS - to DLT_PFSYNC, so code built with FreeBSD's 414 * libpcap won't treat those files as DLT_PFSYNC files. 415 * 416 * Other libpcaps won't map a link-layer header type of 121 to DLT_PFSYNC; 417 * this means they can read DLT_HHDLC files, if any exist, but won't 418 * treat pcap files written by any older versions of FreeBSD libpcap that 419 * didn't map to 246 as DLT_PFSYNC files. 420 */ 421 #ifdef __FreeBSD__ 422 #define DLT_PFSYNC 121 423 #else 424 #define DLT_HHDLC 121 425 #endif 426 427 /* 428 * This is for RFC 2625 IP-over-Fibre Channel. 429 * 430 * This is not for use with raw Fibre Channel, where the link-layer 431 * header starts with a Fibre Channel frame header; it's for IP-over-FC, 432 * where the link-layer header starts with an RFC 2625 Network_Header 433 * field. 434 */ 435 #define DLT_IP_OVER_FC 122 436 437 /* 438 * This is for Full Frontal ATM on Solaris with SunATM, with a 439 * pseudo-header followed by an AALn PDU. 440 * 441 * There may be other forms of Full Frontal ATM on other OSes, 442 * with different pseudo-headers. 443 * 444 * If ATM software returns a pseudo-header with VPI/VCI information 445 * (and, ideally, packet type information, e.g. signalling, ILMI, 446 * LANE, LLC-multiplexed traffic, etc.), it should not use 447 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump 448 * and the like don't have to infer the presence or absence of a 449 * pseudo-header and the form of the pseudo-header. 450 */ 451 #define DLT_SUNATM 123 /* Solaris+SunATM */ 452 453 /* 454 * Reserved as per request from Kent Dahlgren <kent@praesum.com> 455 * for private use. 456 */ 457 #define DLT_RIO 124 /* RapidIO */ 458 #define DLT_PCI_EXP 125 /* PCI Express */ 459 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 460 461 /* 462 * Header for 802.11 plus a number of bits of link-layer information 463 * including radio information, used by some recent BSD drivers as 464 * well as the madwifi Atheros driver for Linux. 465 */ 466 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ 467 468 /* 469 * Reserved for the TZSP encapsulation, as per request from 470 * Chris Waters <chris.waters@networkchemistry.com> 471 * TZSP is a generic encapsulation for any other link type, 472 * which includes a means to include meta-information 473 * with the packet, e.g. signal strength and channel 474 * for 802.11 packets. 475 */ 476 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 477 478 /* 479 * BSD's ARCNET headers have the source host, destination host, 480 * and type at the beginning of the packet; that's what's handed 481 * up to userland via BPF. 482 * 483 * Linux's ARCNET headers, however, have a 2-byte offset field 484 * between the host IDs and the type; that's what's handed up 485 * to userland via PF_PACKET sockets. 486 * 487 * We therefore have to have separate DLT_ values for them. 488 */ 489 #define DLT_ARCNET_LINUX 129 /* ARCNET */ 490 491 /* 492 * Juniper-private data link types, as per request from 493 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 494 * for passing on chassis-internal metainformation such as 495 * QOS profiles, etc.. 496 */ 497 #define DLT_JUNIPER_MLPPP 130 498 #define DLT_JUNIPER_MLFR 131 499 #define DLT_JUNIPER_ES 132 500 #define DLT_JUNIPER_GGSN 133 501 #define DLT_JUNIPER_MFR 134 502 #define DLT_JUNIPER_ATM2 135 503 #define DLT_JUNIPER_SERVICES 136 504 #define DLT_JUNIPER_ATM1 137 505 506 /* 507 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 508 * <dieter@apple.com>. The header that's presented is an Ethernet-like 509 * header: 510 * 511 * #define FIREWIRE_EUI64_LEN 8 512 * struct firewire_header { 513 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 514 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 515 * u_short firewire_type; 516 * }; 517 * 518 * with "firewire_type" being an Ethernet type value, rather than, 519 * for example, raw GASP frames being handed up. 520 */ 521 #define DLT_APPLE_IP_OVER_IEEE1394 138 522 523 /* 524 * Various SS7 encapsulations, as per a request from Jeff Morriss 525 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 526 */ 527 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 528 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 529 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 530 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 531 532 /* 533 * DOCSIS MAC frames. 534 */ 535 #define DLT_DOCSIS 143 536 537 /* 538 * Linux-IrDA packets. Protocol defined at https://www.irda.org. 539 * Those packets include IrLAP headers and above (IrLMP...), but 540 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy 541 * framing can be handled by the hardware and depend on the bitrate. 542 * This is exactly the format you would get capturing on a Linux-IrDA 543 * interface (irdaX), but not on a raw serial port. 544 * Note the capture is done in "Linux-cooked" mode, so each packet include 545 * a fake packet header (struct sll_header). This is because IrDA packet 546 * decoding is dependent on the direction of the packet (incoming or 547 * outgoing). 548 * When/if other platform implement IrDA capture, we may revisit the 549 * issue and define a real DLT_IRDA... 550 * Jean II 551 */ 552 #define DLT_LINUX_IRDA 144 553 554 /* 555 * Reserved for IBM SP switch and IBM Next Federation switch. 556 */ 557 #define DLT_IBM_SP 145 558 #define DLT_IBM_SN 146 559 560 /* 561 * Reserved for private use. If you have some link-layer header type 562 * that you want to use within your organization, with the capture files 563 * using that link-layer header type not ever be sent outside your 564 * organization, you can use these values. 565 * 566 * No libpcap release will use these for any purpose, nor will any 567 * tcpdump release use them, either. 568 * 569 * Do *NOT* use these in capture files that you expect anybody not using 570 * your private versions of capture-file-reading tools to read; in 571 * particular, do *NOT* use them in products, otherwise you may find that 572 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 573 * read capture files from your firewall/intrusion detection/traffic 574 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 575 * and you may also find that the developers of those applications will 576 * not accept patches to let them read those files. 577 * 578 * Also, do not use them if somebody might send you a capture using them 579 * for *their* private type and tools using them for *your* private type 580 * would have to read them. 581 * 582 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value, 583 * as per the comment above, and use the type you're given. 584 */ 585 #define DLT_USER0 147 586 #define DLT_USER1 148 587 #define DLT_USER2 149 588 #define DLT_USER3 150 589 #define DLT_USER4 151 590 #define DLT_USER5 152 591 #define DLT_USER6 153 592 #define DLT_USER7 154 593 #define DLT_USER8 155 594 #define DLT_USER9 156 595 #define DLT_USER10 157 596 #define DLT_USER11 158 597 #define DLT_USER12 159 598 #define DLT_USER13 160 599 #define DLT_USER14 161 600 #define DLT_USER15 162 601 602 /* 603 * For future use with 802.11 captures - defined by AbsoluteValue 604 * Systems to store a number of bits of link-layer information 605 * including radio information: 606 * 607 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 608 * 609 * but it might be used by some non-AVS drivers now or in the 610 * future. 611 */ 612 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 613 614 /* 615 * Juniper-private data link type, as per request from 616 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 617 * for passing on chassis-internal metainformation such as 618 * QOS profiles, etc.. 619 */ 620 #define DLT_JUNIPER_MONITOR 164 621 622 /* 623 * BACnet MS/TP frames. 624 */ 625 #define DLT_BACNET_MS_TP 165 626 627 /* 628 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. 629 * 630 * This is used in some OSes to allow a kernel socket filter to distinguish 631 * between incoming and outgoing packets, on a socket intended to 632 * supply pppd with outgoing packets so it can do dial-on-demand and 633 * hangup-on-lack-of-demand; incoming packets are filtered out so they 634 * don't cause pppd to hold the connection up (you don't want random 635 * input packets such as port scans, packets from old lost connections, 636 * etc. to force the connection to stay up). 637 * 638 * The first byte of the PPP header (0xff03) is modified to accommodate 639 * the direction - 0x00 = IN, 0x01 = OUT. 640 */ 641 #define DLT_PPP_PPPD 166 642 643 /* 644 * Names for backwards compatibility with older versions of some PPP 645 * software; new software should use DLT_PPP_PPPD. 646 */ 647 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 648 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 649 650 /* 651 * Juniper-private data link type, as per request from 652 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 653 * for passing on chassis-internal metainformation such as 654 * QOS profiles, cookies, etc.. 655 */ 656 #define DLT_JUNIPER_PPPOE 167 657 #define DLT_JUNIPER_PPPOE_ATM 168 658 659 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 660 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 661 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 662 663 /* 664 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line 665 * monitoring equipment. 666 */ 667 #define DLT_GCOM_T1E1 172 668 #define DLT_GCOM_SERIAL 173 669 670 /* 671 * Juniper-private data link type, as per request from 672 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used 673 * for internal communication to Physical Interface Cards (PIC) 674 */ 675 #define DLT_JUNIPER_PIC_PEER 174 676 677 /* 678 * Link types requested by Gregor Maier <gregor@endace.com> of Endace 679 * Measurement Systems. They add an ERF header (see 680 * https://www.endace.com/support/EndaceRecordFormat.pdf) in front of 681 * the link-layer header. 682 */ 683 #define DLT_ERF_ETH 175 /* Ethernet */ 684 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 685 686 /* 687 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD 688 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 689 * includes additional information before the LAPD header, so it's 690 * not necessarily a generic LAPD header. 691 */ 692 #define DLT_LINUX_LAPD 177 693 694 /* 695 * Juniper-private data link type, as per request from 696 * Hannes Gredler <hannes@juniper.net>. 697 * The DLT_ are used for prepending meta-information 698 * like interface index, interface name 699 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 700 */ 701 #define DLT_JUNIPER_ETHER 178 702 #define DLT_JUNIPER_PPP 179 703 #define DLT_JUNIPER_FRELAY 180 704 #define DLT_JUNIPER_CHDLC 181 705 706 /* 707 * Multi Link Frame Relay (FRF.16) 708 */ 709 #define DLT_MFR 182 710 711 /* 712 * Juniper-private data link type, as per request from 713 * Hannes Gredler <hannes@juniper.net>. 714 * The DLT_ is used for internal communication with a 715 * voice Adapter Card (PIC) 716 */ 717 #define DLT_JUNIPER_VP 183 718 719 /* 720 * Arinc 429 frames. 721 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 722 * Every frame contains a 32bit A429 label. 723 * More documentation on Arinc 429 can be found at 724 * https://web.archive.org/web/20040616233302/https://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 725 */ 726 #define DLT_A429 184 727 728 /* 729 * Arinc 653 Interpartition Communication messages. 730 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 731 * Please refer to the A653-1 standard for more information. 732 */ 733 #define DLT_A653_ICM 185 734 735 /* 736 * This used to be "USB packets, beginning with a USB setup header; 737 * requested by Paolo Abeni <paolo.abeni@email.it>." 738 * 739 * However, that header didn't work all that well - it left out some 740 * useful information - and was abandoned in favor of the DLT_USB_LINUX 741 * header. 742 * 743 * This is now used by FreeBSD for its BPF taps for USB; that has its 744 * own headers. So it is written, so it is done. 745 * 746 * For source-code compatibility, we also define DLT_USB to have this 747 * value. We do it numerically so that, if code that includes this 748 * file (directly or indirectly) also includes an OS header that also 749 * defines DLT_USB as 186, we don't get a redefinition warning. 750 * (NetBSD 7 does that.) 751 */ 752 #define DLT_USB_FREEBSD 186 753 #define DLT_USB 186 754 755 /* 756 * Bluetooth HCI UART transport layer (part H:4); requested by 757 * Paolo Abeni. 758 */ 759 #define DLT_BLUETOOTH_HCI_H4 187 760 761 /* 762 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 763 * <cruz_petagay@bah.com>. 764 */ 765 #define DLT_IEEE802_16_MAC_CPS 188 766 767 /* 768 * USB packets, beginning with a Linux USB header; requested by 769 * Paolo Abeni <paolo.abeni@email.it>. 770 */ 771 #define DLT_USB_LINUX 189 772 773 /* 774 * Controller Area Network (CAN) v. 2.0B packets. 775 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 776 * Used to dump CAN packets coming from a CAN Vector board. 777 * More documentation on the CAN v2.0B frames can be found at 778 * http://www.can-cia.org/downloads/?269 779 */ 780 #define DLT_CAN20B 190 781 782 /* 783 * IEEE 802.15.4, with address fields padded, as is done by Linux 784 * drivers; requested by Juergen Schimmer. 785 */ 786 #define DLT_IEEE802_15_4_LINUX 191 787 788 /* 789 * Per Packet Information encapsulated packets. 790 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 791 */ 792 #define DLT_PPI 192 793 794 /* 795 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 796 * requested by Charles Clancy. 797 */ 798 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 799 800 /* 801 * Juniper-private data link type, as per request from 802 * Hannes Gredler <hannes@juniper.net>. 803 * The DLT_ is used for internal communication with a 804 * integrated service module (ISM). 805 */ 806 #define DLT_JUNIPER_ISM 194 807 808 /* 809 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 810 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. 811 * For this one, we expect the FCS to be present at the end of the frame; 812 * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used. 813 * 814 * We keep the name DLT_IEEE802_15_4 as an alias for backwards 815 * compatibility, but, again, this should *only* be used for 802.15.4 816 * frames that include the FCS. 817 */ 818 #define DLT_IEEE802_15_4_WITHFCS 195 819 #define DLT_IEEE802_15_4 DLT_IEEE802_15_4_WITHFCS 820 821 /* 822 * Various link-layer types, with a pseudo-header, for SITA 823 * (https://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). 824 */ 825 #define DLT_SITA 196 826 827 /* 828 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 829 * encapsulates Endace ERF records. Requested by Stephen Donnelly 830 * <stephen@endace.com>. 831 */ 832 #define DLT_ERF 197 833 834 /* 835 * Special header prepended to Ethernet packets when capturing from a 836 * u10 Networks board. Requested by Phil Mulholland 837 * <phil@u10networks.com>. 838 */ 839 #define DLT_RAIF1 198 840 841 /* 842 * IPMB packet for IPMI, beginning with a 2-byte header, followed by 843 * the I2C slave address, followed by the netFn and LUN, etc.. 844 * Requested by Chanthy Toeung <chanthy.toeung@ca.kontron.com>. 845 * 846 * XXX - this used to be called DLT_IPMB, back when we got the 847 * impression from the email thread requesting it that the packet 848 * had no extra 2-byte header. We've renamed it; if anybody used 849 * DLT_IPMB and assumed no 2-byte header, this will cause the compile 850 * to fail, at which point we'll have to figure out what to do about 851 * the two header types using the same DLT_/LINKTYPE_ value. If that 852 * doesn't happen, we'll assume nobody used it and that the redefinition 853 * is safe. 854 */ 855 #define DLT_IPMB_KONTRON 199 856 857 /* 858 * Juniper-private data link type, as per request from 859 * Hannes Gredler <hannes@juniper.net>. 860 * The DLT_ is used for capturing data on a secure tunnel interface. 861 */ 862 #define DLT_JUNIPER_ST 200 863 864 /* 865 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 866 * that includes direction information; requested by Paolo Abeni. 867 */ 868 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 869 870 /* 871 * AX.25 packet with a 1-byte KISS header; see 872 * 873 * http://www.ax25.net/kiss.htm 874 * 875 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>. 876 */ 877 #define DLT_AX25_KISS 202 878 879 /* 880 * LAPD packets from an ISDN channel, starting with the address field, 881 * with no pseudo-header. 882 * Requested by Varuna De Silva <varunax@gmail.com>. 883 */ 884 #define DLT_LAPD 203 885 886 /* 887 * PPP, with a one-byte direction pseudo-header prepended - zero means 888 * "received by this host", non-zero (any non-zero value) means "sent by 889 * this host" - as per Will Barker <w.barker@zen.co.uk>. 890 * 891 * Don't confuse this with DLT_PPP_WITH_DIRECTION, which is an old 892 * name for what is now called DLT_PPP_PPPD. 893 */ 894 #define DLT_PPP_WITH_DIR 204 895 896 /* 897 * Cisco HDLC, with a one-byte direction pseudo-header prepended - zero 898 * means "received by this host", non-zero (any non-zero value) means 899 * "sent by this host" - as per Will Barker <w.barker@zen.co.uk>. 900 */ 901 #define DLT_C_HDLC_WITH_DIR 205 902 903 /* 904 * Frame Relay, with a one-byte direction pseudo-header prepended - zero 905 * means "received by this host" (DCE -> DTE), non-zero (any non-zero 906 * value) means "sent by this host" (DTE -> DCE) - as per Will Barker 907 * <w.barker@zen.co.uk>. 908 */ 909 #define DLT_FRELAY_WITH_DIR 206 910 911 /* 912 * LAPB, with a one-byte direction pseudo-header prepended - zero means 913 * "received by this host" (DCE -> DTE), non-zero (any non-zero value) 914 * means "sent by this host" (DTE -> DCE)- as per Will Barker 915 * <w.barker@zen.co.uk>. 916 */ 917 #define DLT_LAPB_WITH_DIR 207 918 919 /* 920 * 208 is reserved for an as-yet-unspecified proprietary link-layer 921 * type, as requested by Will Barker. 922 */ 923 924 /* 925 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 926 * <avn@pigeonpoint.com>. 927 */ 928 #define DLT_IPMB_LINUX 209 929 930 /* 931 * FlexRay automotive bus - http://www.flexray.com/ - as requested 932 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 933 */ 934 #define DLT_FLEXRAY 210 935 936 /* 937 * Media Oriented Systems Transport (MOST) bus for multimedia 938 * transport - https://www.mostcooperation.com/ - as requested 939 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 940 */ 941 #define DLT_MOST 211 942 943 /* 944 * Local Interconnect Network (LIN) bus for vehicle networks - 945 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 946 * <hannes.kaelber@x2e.de>. 947 */ 948 #define DLT_LIN 212 949 950 /* 951 * X2E-private data link type used for serial line capture, 952 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 953 */ 954 #define DLT_X2E_SERIAL 213 955 956 /* 957 * X2E-private data link type used for the Xoraya data logger 958 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 959 */ 960 #define DLT_X2E_XORAYA 214 961 962 /* 963 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 964 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 965 * of 0 as preamble, one octet of SFD, one octet of frame length+ 966 * reserved bit, and then the MAC-layer data, starting with the 967 * frame control field). 968 * 969 * Requested by Max Filippov <jcmvbkbc@gmail.com>. 970 */ 971 #define DLT_IEEE802_15_4_NONASK_PHY 215 972 973 /* 974 * David Gibson <david@gibson.dropbear.id.au> requested this for 975 * captures from the Linux kernel /dev/input/eventN devices. This 976 * is used to communicate keystrokes and mouse movements from the 977 * Linux kernel to display systems, such as Xorg. 978 */ 979 #define DLT_LINUX_EVDEV 216 980 981 /* 982 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 983 * 984 * Requested by Harald Welte <laforge@gnumonks.org>. 985 */ 986 #define DLT_GSMTAP_UM 217 987 #define DLT_GSMTAP_ABIS 218 988 989 /* 990 * MPLS, with an MPLS label as the link-layer header. 991 * Requested by Michele Marchetto <michele@openbsd.org> on behalf 992 * of OpenBSD. 993 */ 994 #define DLT_MPLS 219 995 996 /* 997 * USB packets, beginning with a Linux USB header, with the USB header 998 * padded to 64 bytes; required for memory-mapped access. 999 */ 1000 #define DLT_USB_LINUX_MMAPPED 220 1001 1002 /* 1003 * DECT packets, with a pseudo-header; requested by 1004 * Matthias Wenzel <tcpdump@mazzoo.de>. 1005 */ 1006 #define DLT_DECT 221 1007 1008 /* 1009 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov> 1010 * Date: Mon, 11 May 2009 11:18:30 -0500 1011 * 1012 * DLT_AOS. We need it for AOS Space Data Link Protocol. 1013 * I have already written dissectors for but need an OK from 1014 * legal before I can submit a patch. 1015 * 1016 */ 1017 #define DLT_AOS 222 1018 1019 /* 1020 * Wireless HART (Highway Addressable Remote Transducer) 1021 * From the HART Communication Foundation 1022 * IES/PAS 62591 1023 * 1024 * Requested by Sam Roberts <vieuxtech@gmail.com>. 1025 */ 1026 #define DLT_WIHART 223 1027 1028 /* 1029 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 1030 * Requested by Kahou Lei <kahou82@gmail.com>. 1031 */ 1032 #define DLT_FC_2 224 1033 1034 /* 1035 * Fibre Channel FC-2 frames, beginning with an encoding of the 1036 * SOF, and ending with an encoding of the EOF. 1037 * 1038 * The encodings represent the frame delimiters as 4-byte sequences 1039 * representing the corresponding ordered sets, with K28.5 1040 * represented as 0xBC, and the D symbols as the corresponding 1041 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 1042 * is represented as 0xBC 0xB5 0x55 0x55. 1043 * 1044 * Requested by Kahou Lei <kahou82@gmail.com>. 1045 */ 1046 #define DLT_FC_2_WITH_FRAME_DELIMS 225 1047 1048 /* 1049 * Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>. 1050 * 1051 * The pseudo-header starts with a one-byte version number; for version 2, 1052 * the pseudo-header is: 1053 * 1054 * struct dl_ipnetinfo { 1055 * uint8_t dli_version; 1056 * uint8_t dli_family; 1057 * uint16_t dli_htype; 1058 * uint32_t dli_pktlen; 1059 * uint32_t dli_ifindex; 1060 * uint32_t dli_grifindex; 1061 * uint32_t dli_zsrc; 1062 * uint32_t dli_zdst; 1063 * }; 1064 * 1065 * dli_version is 2 for the current version of the pseudo-header. 1066 * 1067 * dli_family is a Solaris address family value, so it's 2 for IPv4 1068 * and 26 for IPv6. 1069 * 1070 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 1071 * packets, and 2 for packets arriving from another zone on the same 1072 * machine. 1073 * 1074 * dli_pktlen is the length of the packet data following the pseudo-header 1075 * (so the captured length minus dli_pktlen is the length of the 1076 * pseudo-header, assuming the entire pseudo-header was captured). 1077 * 1078 * dli_ifindex is the interface index of the interface on which the 1079 * packet arrived. 1080 * 1081 * dli_grifindex is the group interface index number (for IPMP interfaces). 1082 * 1083 * dli_zsrc is the zone identifier for the source of the packet. 1084 * 1085 * dli_zdst is the zone identifier for the destination of the packet. 1086 * 1087 * A zone number of 0 is the global zone; a zone number of 0xffffffff 1088 * means that the packet arrived from another host on the network, not 1089 * from another zone on the same machine. 1090 * 1091 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 1092 * which of those it is. 1093 */ 1094 #define DLT_IPNET 226 1095 1096 /* 1097 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 1098 * by Linux SocketCAN, and with multi-byte numerical fields in that header 1099 * in big-endian byte order. 1100 * 1101 * See Documentation/networking/can.txt in the Linux source. 1102 * 1103 * Requested by Felix Obenhuber <felix@obenhuber.de>. 1104 */ 1105 #define DLT_CAN_SOCKETCAN 227 1106 1107 /* 1108 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 1109 * whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>. 1110 */ 1111 #define DLT_IPV4 228 1112 #define DLT_IPV6 229 1113 1114 /* 1115 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1116 * nothing), and with no FCS at the end of the frame; requested by 1117 * Jon Smirl <jonsmirl@gmail.com>. 1118 */ 1119 #define DLT_IEEE802_15_4_NOFCS 230 1120 1121 /* 1122 * Raw D-Bus: 1123 * 1124 * https://www.freedesktop.org/wiki/Software/dbus 1125 * 1126 * messages: 1127 * 1128 * https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 1129 * 1130 * starting with the endianness flag, followed by the message type, etc., 1131 * but without the authentication handshake before the message sequence: 1132 * 1133 * https://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1134 * 1135 * Requested by Martin Vidner <martin@vidner.net>. 1136 */ 1137 #define DLT_DBUS 231 1138 1139 /* 1140 * Juniper-private data link type, as per request from 1141 * Hannes Gredler <hannes@juniper.net>. 1142 */ 1143 #define DLT_JUNIPER_VS 232 1144 #define DLT_JUNIPER_SRX_E2E 233 1145 #define DLT_JUNIPER_FIBRECHANNEL 234 1146 1147 /* 1148 * DVB-CI (DVB Common Interface for communication between a PC Card 1149 * module and a DVB receiver). See 1150 * 1151 * https://www.kaiser.cx/pcap-dvbci.html 1152 * 1153 * for the specification. 1154 * 1155 * Requested by Martin Kaiser <martin@kaiser.cx>. 1156 */ 1157 #define DLT_DVB_CI 235 1158 1159 /* 1160 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1161 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1162 * <hans-christoph.schemmel@cinterion.com>. 1163 */ 1164 #define DLT_MUX27010 236 1165 1166 /* 1167 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1168 * <barisdemiray@gmail.com>. 1169 */ 1170 #define DLT_STANAG_5066_D_PDU 237 1171 1172 /* 1173 * Juniper-private data link type, as per request from 1174 * Hannes Gredler <hannes@juniper.net>. 1175 */ 1176 #define DLT_JUNIPER_ATM_CEMIC 238 1177 1178 /* 1179 * NetFilter LOG messages 1180 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1181 * 1182 * Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl> 1183 */ 1184 #define DLT_NFLOG 239 1185 1186 /* 1187 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1188 * for Ethernet packets with a 4-byte pseudo-header and always 1189 * with the payload including the FCS, as supplied by their 1190 * netANALYZER hardware and software. 1191 * 1192 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1193 */ 1194 #define DLT_NETANALYZER 240 1195 1196 /* 1197 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1198 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1199 * with the Ethernet header preceded by 7 bytes of preamble and 1200 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1201 * software. 1202 * 1203 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1204 */ 1205 #define DLT_NETANALYZER_TRANSPARENT 241 1206 1207 /* 1208 * IP-over-InfiniBand, as specified by RFC 4391. 1209 * 1210 * Requested by Petr Sumbera <petr.sumbera@oracle.com>. 1211 */ 1212 #define DLT_IPOIB 242 1213 1214 /* 1215 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0). 1216 * 1217 * Requested by Guy Martin <gmsoft@tuxicoman.be>. 1218 */ 1219 #define DLT_MPEG_2_TS 243 1220 1221 /* 1222 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as 1223 * used by their ng40 protocol tester. 1224 * 1225 * Requested by Jens Grimmer <jens.grimmer@ng4t.com>. 1226 */ 1227 #define DLT_NG40 244 1228 1229 /* 1230 * Pseudo-header giving adapter number and flags, followed by an NFC 1231 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU, 1232 * as specified by NFC Forum Logical Link Control Protocol Technical 1233 * Specification LLCP 1.1. 1234 * 1235 * Requested by Mike Wakerly <mikey@google.com>. 1236 */ 1237 #define DLT_NFC_LLCP 245 1238 1239 /* 1240 * 246 is used as LINKTYPE_PFSYNC; do not use it for any other purpose. 1241 * 1242 * DLT_PFSYNC has different values on different platforms, and all of 1243 * them collide with something used elsewhere. On platforms that 1244 * don't already define it, define it as 246. 1245 */ 1246 #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__) 1247 #define DLT_PFSYNC 246 1248 #endif 1249 1250 /* 1251 * Raw InfiniBand packets, starting with the Local Routing Header. 1252 * 1253 * Requested by Oren Kladnitsky <orenk@mellanox.com>. 1254 */ 1255 #define DLT_INFINIBAND 247 1256 1257 /* 1258 * SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6). 1259 * 1260 * Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>. 1261 */ 1262 #define DLT_SCTP 248 1263 1264 /* 1265 * USB packets, beginning with a USBPcap header. 1266 * 1267 * Requested by Tomasz Mon <desowin@gmail.com> 1268 */ 1269 #define DLT_USBPCAP 249 1270 1271 /* 1272 * Schweitzer Engineering Laboratories "RTAC" product serial-line 1273 * packets. 1274 * 1275 * Requested by Chris Bontje <chris_bontje@selinc.com>. 1276 */ 1277 #define DLT_RTAC_SERIAL 250 1278 1279 /* 1280 * Bluetooth Low Energy air interface link-layer packets. 1281 * 1282 * Requested by Mike Kershaw <dragorn@kismetwireless.net>. 1283 */ 1284 #define DLT_BLUETOOTH_LE_LL 251 1285 1286 /* 1287 * DLT type for upper-protocol layer PDU saves from Wireshark. 1288 * 1289 * the actual contents are determined by two TAGs, one or more of 1290 * which is stored with each packet: 1291 * 1292 * EXP_PDU_TAG_DISSECTOR_NAME the name of the Wireshark dissector 1293 * that can make sense of the data stored. 1294 * 1295 * EXP_PDU_TAG_HEUR_DISSECTOR_NAME the name of the Wireshark heuristic 1296 * dissector that can make sense of the 1297 * data stored. 1298 */ 1299 #define DLT_WIRESHARK_UPPER_PDU 252 1300 1301 /* 1302 * DLT type for the netlink protocol (nlmon devices). 1303 */ 1304 #define DLT_NETLINK 253 1305 1306 /* 1307 * Bluetooth Linux Monitor headers for the BlueZ stack. 1308 */ 1309 #define DLT_BLUETOOTH_LINUX_MONITOR 254 1310 1311 /* 1312 * Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as 1313 * captured by Ubertooth. 1314 */ 1315 #define DLT_BLUETOOTH_BREDR_BB 255 1316 1317 /* 1318 * Bluetooth Low Energy link layer packets, as captured by Ubertooth. 1319 */ 1320 #define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256 1321 1322 /* 1323 * PROFIBUS data link layer. 1324 */ 1325 #define DLT_PROFIBUS_DL 257 1326 1327 /* 1328 * Apple's DLT_PKTAP headers. 1329 * 1330 * Sadly, the folks at Apple either had no clue that the DLT_USERn values 1331 * are for internal use within an organization and partners only, and 1332 * didn't know that the right way to get a link-layer header type is to 1333 * ask tcpdump.org for one, or knew and didn't care, so they just 1334 * used DLT_USER2, which causes problems for everything except for 1335 * their version of tcpdump. 1336 * 1337 * So I'll just give them one; hopefully this will show up in a 1338 * libpcap release in time for them to get this into 10.10 Big Sur 1339 * or whatever Mavericks' successor is called. LINKTYPE_PKTAP 1340 * will be 258 *even on macOS*; that is *intentional*, so that 1341 * PKTAP files look the same on *all* OSes (different OSes can have 1342 * different numerical values for a given DLT_, but *MUST NOT* have 1343 * different values for what goes in a file, as files can be moved 1344 * between OSes!). 1345 * 1346 * When capturing, on a system with a Darwin-based OS, on a device 1347 * that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this 1348 * version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP, 1349 * and that will continue to be DLT_USER2 on Darwin-based OSes. That way, 1350 * binary compatibility with Mavericks is preserved for programs using 1351 * this version of libpcap. This does mean that if you were using 1352 * DLT_USER2 for some capture device on macOS, you can't do so with 1353 * this version of libpcap, just as you can't with Apple's libpcap - 1354 * on macOS, they define DLT_PKTAP to be DLT_USER2, so programs won't 1355 * be able to distinguish between PKTAP and whatever you were using 1356 * DLT_USER2 for. 1357 * 1358 * If the program saves the capture to a file using this version of 1359 * libpcap's pcap_dump code, the LINKTYPE_ value in the file will be 1360 * LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes. 1361 * That way, the file will *not* be a DLT_USER2 file. That means 1362 * that the latest version of tcpdump, when built with this version 1363 * of libpcap, and sufficiently recent versions of Wireshark will 1364 * be able to read those files and interpret them correctly; however, 1365 * Apple's version of tcpdump in OS X 10.9 won't be able to handle 1366 * them. (Hopefully, Apple will pick up this version of libpcap, 1367 * and the corresponding version of tcpdump, so that tcpdump will 1368 * be able to handle the old LINKTYPE_USER2 captures *and* the new 1369 * LINKTYPE_PKTAP captures.) 1370 */ 1371 #ifdef __APPLE__ 1372 #define DLT_PKTAP DLT_USER2 1373 #else 1374 #define DLT_PKTAP 258 1375 #endif 1376 1377 /* 1378 * Ethernet packets preceded by a header giving the last 6 octets 1379 * of the preamble specified by 802.3-2012 Clause 65, section 1380 * 65.1.3.2 "Transmit". 1381 */ 1382 #define DLT_EPON 259 1383 1384 /* 1385 * IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format" 1386 * in the PICMG HPM.2 specification. 1387 */ 1388 #define DLT_IPMI_HPM_2 260 1389 1390 /* 1391 * per Joshua Wright <jwright@hasborg.com>, formats for Zwave captures. 1392 */ 1393 #define DLT_ZWAVE_R1_R2 261 1394 #define DLT_ZWAVE_R3 262 1395 1396 /* 1397 * per Steve Karg <skarg@users.sourceforge.net>, formats for Wattstopper 1398 * Digital Lighting Management room bus serial protocol captures. 1399 */ 1400 #define DLT_WATTSTOPPER_DLM 263 1401 1402 /* 1403 * ISO 14443 contactless smart card messages. 1404 */ 1405 #define DLT_ISO_14443 264 1406 1407 /* 1408 * Radio data system (RDS) groups. IEC 62106. 1409 * Per Jonathan Brucker <jonathan.brucke@gmail.com>. 1410 */ 1411 #define DLT_RDS 265 1412 1413 /* 1414 * USB packets, beginning with a Darwin (macOS, etc.) header. 1415 */ 1416 #define DLT_USB_DARWIN 266 1417 1418 /* 1419 * OpenBSD DLT_OPENFLOW. 1420 */ 1421 #define DLT_OPENFLOW 267 1422 1423 /* 1424 * SDLC frames containing SNA PDUs. 1425 */ 1426 #define DLT_SDLC 268 1427 1428 /* 1429 * per "Selvig, Bjorn" <b.selvig@ti.com> used for 1430 * TI protocol sniffer. 1431 */ 1432 #define DLT_TI_LLN_SNIFFER 269 1433 1434 /* 1435 * per: Erik de Jong <erikdejong at gmail.com> for 1436 * https://github.com/eriknl/LoRaTap/releases/tag/v0.1 1437 */ 1438 #define DLT_LORATAP 270 1439 1440 /* 1441 * per: Stefanha at gmail.com for 1442 * https://lists.sandelman.ca/pipermail/tcpdump-workers/2017-May/000772.html 1443 * and: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/vsockmon.h 1444 * for: https://qemu-project.org/Features/VirtioVsock 1445 */ 1446 #define DLT_VSOCK 271 1447 1448 /* 1449 * Nordic Semiconductor Bluetooth LE sniffer. 1450 */ 1451 #define DLT_NORDIC_BLE 272 1452 1453 /* 1454 * Excentis DOCSIS 3.1 RF sniffer (XRA-31) 1455 * per: bruno.verstuyft at excentis.com 1456 * https://www.xra31.com/xra-header 1457 */ 1458 #define DLT_DOCSIS31_XRA31 273 1459 1460 /* 1461 * mPackets, as specified by IEEE 802.3br Figure 99-4, starting 1462 * with the preamble and always ending with a CRC field. 1463 */ 1464 #define DLT_ETHERNET_MPACKET 274 1465 1466 /* 1467 * DisplayPort AUX channel monitoring data as specified by VESA 1468 * DisplayPort(DP) Standard preceded by a pseudo-header. 1469 * per dirk.eibach at gdsys.cc 1470 */ 1471 #define DLT_DISPLAYPORT_AUX 275 1472 1473 /* 1474 * Linux cooked sockets v2. 1475 */ 1476 #define DLT_LINUX_SLL2 276 1477 1478 /* 1479 * Sercos Monitor, per Manuel Jacob <manuel.jacob at steinbeis-stg.de> 1480 */ 1481 #define DLT_SERCOS_MONITOR 277 1482 1483 /* 1484 * OpenVizsla http://openvizsla.org is open source USB analyzer hardware. 1485 * It consists of FPGA with attached USB phy and FTDI chip for streaming 1486 * the data to the host PC. 1487 * 1488 * Current OpenVizsla data encapsulation format is described here: 1489 * https://github.com/matwey/libopenvizsla/wiki/OpenVizsla-protocol-description 1490 * 1491 */ 1492 #define DLT_OPENVIZSLA 278 1493 1494 /* 1495 * The Elektrobit High Speed Capture and Replay (EBHSCR) protocol is produced 1496 * by a PCIe Card for interfacing high speed automotive interfaces. 1497 * 1498 * The specification for this frame format can be found at: 1499 * https://www.elektrobit.com/ebhscr 1500 * 1501 * for Guenter.Ebermann at elektrobit.com 1502 * 1503 */ 1504 #define DLT_EBHSCR 279 1505 1506 /* 1507 * The https://fd.io vpp graph dispatch tracer produces pcap trace files 1508 * in the format documented here: 1509 * https://fdio-vpp.readthedocs.io/en/latest/gettingstarted/developers/vnet.html#graph-dispatcher-pcap-tracing 1510 */ 1511 #define DLT_VPP_DISPATCH 280 1512 1513 /* 1514 * Broadcom Ethernet switches (ROBO switch) 4 bytes proprietary tagging format. 1515 */ 1516 #define DLT_DSA_TAG_BRCM 281 1517 #define DLT_DSA_TAG_BRCM_PREPEND 282 1518 1519 /* 1520 * IEEE 802.15.4 with pseudo-header and optional meta-data TLVs, PHY payload 1521 * exactly as it appears in the spec (no padding, no nothing), and FCS if 1522 * specified by FCS Type TLV; requested by James Ko <jck@exegin.com>. 1523 * Specification at https://github.com/jkcko/ieee802.15.4-tap 1524 */ 1525 #define DLT_IEEE802_15_4_TAP 283 1526 1527 /* 1528 * Marvell (Ethertype) Distributed Switch Architecture proprietary tagging format. 1529 */ 1530 #define DLT_DSA_TAG_DSA 284 1531 #define DLT_DSA_TAG_EDSA 285 1532 1533 /* 1534 * Payload of lawful intercept packets using the ELEE protocol; 1535 * https://socket.hr/draft-dfranusic-opsawg-elee-00.xml 1536 * https://xml2rfc.tools.ietf.org/cgi-bin/xml2rfc.cgi?url=https://socket.hr/draft-dfranusic-opsawg-elee-00.xml&modeAsFormat=html/ascii 1537 */ 1538 #define DLT_ELEE 286 1539 1540 /* 1541 * Serial frames transmitted between a host and a Z-Wave chip. 1542 */ 1543 #define DLT_Z_WAVE_SERIAL 287 1544 1545 /* 1546 * USB 2.0, 1.1, and 1.0 packets as transmitted over the cable. 1547 */ 1548 #define DLT_USB_2_0 288 1549 1550 /* 1551 * ATSC Link-Layer Protocol (A/330) packets. 1552 */ 1553 #define DLT_ATSC_ALP 289 1554 1555 /* 1556 * In case the code that includes this file (directly or indirectly) 1557 * has also included OS files that happen to define DLT_MATCHING_MAX, 1558 * with a different value (perhaps because that OS hasn't picked up 1559 * the latest version of our DLT definitions), we undefine the 1560 * previous value of DLT_MATCHING_MAX. 1561 */ 1562 #ifdef DLT_MATCHING_MAX 1563 #undef DLT_MATCHING_MAX 1564 #endif 1565 #define DLT_MATCHING_MAX 289 /* highest value in the "matching" range */ 1566 1567 /* 1568 * DLT and savefile link type values are split into a class and 1569 * a member of that class. A class value of 0 indicates a regular 1570 * DLT_/LINKTYPE_ value. 1571 */ 1572 #define DLT_CLASS(x) ((x) & 0x03ff0000) 1573 1574 /* 1575 * NetBSD-specific generic "raw" link type. The class value indicates 1576 * that this is the generic raw type, and the lower 16 bits are the 1577 * address family we're dealing with. Those values are NetBSD-specific; 1578 * do not assume that they correspond to AF_ values for your operating 1579 * system. 1580 */ 1581 #define DLT_CLASS_NETBSD_RAWAF 0x02240000 1582 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af)) 1583 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff) 1584 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF) 1585 1586 #endif /* !_NET_DLT_H_ */ 1587