1 /* $NetBSD: dlt.h,v 1.23 2022/05/28 21:14:57 andvar Exp $ */ 2 3 /*- 4 * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from the Stanford/CMU enet packet filter, 8 * (net/enet.c) distributed as part of 4.3BSD, and code contributed 9 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence 10 * Berkeley Laboratory. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)bpf.h 7.1 (Berkeley) 5/7/91 37 */ 38 39 #ifndef _NET_DLT_H_ 40 #define _NET_DLT_H_ 41 /* 42 * Link-layer header type codes. 43 * 44 * Do *NOT* add new values to this list without asking 45 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run 46 * the risk of using a value that's already being used for some other 47 * purpose, and of having tools that read libpcap-format captures not 48 * being able to handle captures with your new DLT_ value, with no hope 49 * that they will ever be changed to do so (as that would destroy their 50 * ability to read captures using that value for that other purpose). 51 * 52 * See 53 * 54 * https://www.tcpdump.org/linktypes.html 55 * 56 * for detailed descriptions of some of these link-layer header types. 57 */ 58 59 /* 60 * These are the types that are the same on all platforms, and that 61 * have been defined by <net/bpf.h> for ages. 62 */ 63 #define DLT_NULL 0 /* BSD loopback encapsulation */ 64 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 65 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 66 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 67 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 68 #define DLT_CHAOS 5 /* Chaos */ 69 #define DLT_IEEE802 6 /* 802.5 Token Ring */ 70 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ 71 #define DLT_SLIP 8 /* Serial Line IP */ 72 #define DLT_PPP 9 /* Point-to-point Protocol */ 73 #define DLT_FDDI 10 /* FDDI */ 74 75 /* 76 * These are types that are different on some platforms, and that 77 * have been defined by <net/bpf.h> for ages. We use #ifdefs to 78 * detect the BSDs that define them differently from the traditional 79 * libpcap <net/bpf.h> 80 * 81 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, 82 * but I don't know what the right #define is for BSD/OS. 83 */ 84 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ 85 86 #ifdef __OpenBSD__ 87 #define DLT_RAW 14 /* raw IP */ 88 #else 89 #define DLT_RAW 12 /* raw IP */ 90 #endif 91 92 /* 93 * Given that the only OS that currently generates BSD/OS SLIP or PPP 94 * is, well, BSD/OS, arguably everybody should have chosen its values 95 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they 96 * didn't. So it goes. 97 */ 98 #if defined(__NetBSD__) || defined(__FreeBSD__) 99 #ifndef DLT_SLIP_BSDOS 100 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ 101 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ 102 #define DLT_HIPPI 15 /* HIPPI */ 103 #define DLT_HDLC 16 /* HDLC framing */ 104 #endif 105 #else 106 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 107 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 108 #endif 109 110 /* 111 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is. 112 * 113 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG 114 * as 117 so that pflog captures would use a link-layer header type 115 * value that didn't collide with any other values. On all 116 * platforms other than OpenBSD, we defined DLT_PFLOG as 117, 117 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG. 118 * 119 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well. 120 * 121 * Don't use 17 for anything else. 122 */ 123 #if defined(__OpenBSD__) || defined(__NetBSD__) 124 #define DLT_OLD_PFLOG 17 125 #endif 126 127 /* 128 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and 129 * macOS; don't use it for anything else. (FreeBSD uses 121, which 130 * collides with DLT_HHDLC, even though it doesn't use 18 for 131 * anything and doesn't appear to have ever used it for anything.) 132 * 133 * We define it as 18 on those platforms; it is, unfortunately, used 134 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC 135 * in general. As the packet format for it, like that for 136 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent, 137 * we don't support printing it in tcpdump except on OSes that 138 * have the relevant header files, so it's not that useful on 139 * other platforms. 140 */ 141 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__) 142 #define DLT_PFSYNC 18 143 #endif 144 145 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 146 147 /* 148 * Apparently Redback uses this for its SmartEdge 400/800. I hope 149 * nobody else decided to use it, too. 150 */ 151 #define DLT_REDBACK_SMARTEDGE 32 152 153 /* 154 * These values are defined by NetBSD; other platforms should refrain from 155 * using them for other purposes, so that NetBSD savefiles with link 156 * types of 50 or 51 can be read as this type on all platforms. 157 */ 158 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 159 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 160 161 /* 162 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 163 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 164 * header has 6 bytes of unknown data, something that appears to be an 165 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 166 * I've seen. 167 */ 168 #define DLT_SYMANTEC_FIREWALL 99 169 170 /* 171 * Values between 100 and 103 are used in capture file headers as 172 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 173 * that differ between platforms; don't use those values for new DLT_ 174 * new types. 175 */ 176 177 /* 178 * Values starting with 104 are used for newly-assigned link-layer 179 * header type values; for those link-layer header types, the DLT_ 180 * value returned by pcap_datalink() and passed to pcap_open_dead(), 181 * and the LINKTYPE_ value that appears in capture files, are the 182 * same. 183 * 184 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 185 * the highest such value. 186 */ 187 #define DLT_MATCHING_MIN 104 188 189 /* 190 * This value was defined by libpcap 0.5; platforms that have defined 191 * it with a different value should define it here with that value - 192 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 193 * whatever value that happens to be, so programs will correctly 194 * handle files with that link type regardless of the value of 195 * DLT_C_HDLC. 196 * 197 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 198 * compatibility with programs written for BSD/OS. 199 * 200 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 201 * for source compatibility with programs written for libpcap 0.5. 202 */ 203 #define DLT_C_HDLC 104 /* Cisco HDLC */ 204 #define DLT_CHDLC DLT_C_HDLC 205 206 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 207 208 /* 209 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, 210 * except when it isn't. (I.e., sometimes it's just raw IP, and 211 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, 212 * so that we don't have to worry about the link-layer header.) 213 */ 214 215 /* 216 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 217 * with other values. 218 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 219 * (DLCI, etc.). 220 */ 221 #define DLT_FRELAY 107 222 223 /* 224 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 225 * that the AF_ type in the link-layer header is in network byte order. 226 * 227 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so 228 * we don't use 12 for it in OSes other than OpenBSD. 229 */ 230 #ifdef __OpenBSD__ 231 #define DLT_LOOP 12 232 #else 233 #define DLT_LOOP 108 234 #endif 235 236 /* 237 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 238 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 239 * than OpenBSD. 240 */ 241 #ifdef __OpenBSD__ 242 #define DLT_ENC 13 243 #else 244 #define DLT_ENC 109 245 #endif 246 247 /* 248 * Values between 110 and 112 are reserved for use in capture file headers 249 * as link-layer types corresponding to DLT_ types that might differ 250 * between platforms; don't use those values for new DLT_ types 251 * other than the corresponding DLT_ types. 252 */ 253 254 /* 255 * Linux cooked sockets. 256 */ 257 #define DLT_LINUX_SLL 113 258 259 /* 260 * Apple LocalTalk hardware. 261 */ 262 #define DLT_LTALK 114 263 264 /* 265 * Acorn Econet. 266 */ 267 #define DLT_ECONET 115 268 269 /* 270 * Reserved for use with OpenBSD ipfilter. 271 */ 272 #define DLT_IPFILTER 116 273 274 /* 275 * OpenBSD DLT_PFLOG. 276 */ 277 #define DLT_PFLOG 117 278 279 /* 280 * Registered for Cisco-internal use. 281 */ 282 #define DLT_CISCO_IOS 118 283 284 /* 285 * For 802.11 cards using the Prism II chips, with a link-layer 286 * header including Prism monitor mode information plus an 802.11 287 * header. 288 */ 289 #define DLT_PRISM_HEADER 119 290 291 /* 292 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 293 * (see Doug Ambrisko's FreeBSD patches). 294 */ 295 #define DLT_AIRONET_HEADER 120 296 297 /* 298 * Sigh. 299 * 300 * 121 was reserved for Siemens HiPath HDLC on 2002-01-25, as 301 * requested by Tomas Kukosa. 302 * 303 * On 2004-02-25, a FreeBSD checkin to sys/net/bpf.h was made that 304 * assigned 121 as DLT_PFSYNC. In current versions, its libpcap 305 * does DLT_ <-> LINKTYPE_ mapping, mapping DLT_PFSYNC to a 306 * LINKTYPE_PFSYNC value of 246, so it should write out DLT_PFSYNC 307 * dump files with 246 as the link-layer header type. (Earlier 308 * versions might not have done mapping, in which case they would 309 * have written them out with a link-layer header type of 121.) 310 * 311 * OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC; 312 * its libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would 313 * write out DLT_PFSYNC dump files with use 18 as the link-layer 314 * header type. 315 * 316 * NetBSD, DragonFly BSD, and Darwin also use 18 for DLT_PFSYNC; in 317 * current versions, their libpcaps do DLT_ <-> LINKTYPE_ mapping, 318 * mapping DLT_PFSYNC to a LINKTYPE_PFSYNC value of 246, so they 319 * should write out DLT_PFSYNC dump files with 246 as the link-layer 320 * header type. (Earlier versions might not have done mapping, 321 * in which case they'd work the same way OpenBSD does, writing 322 * them out with a link-layer header type of 18.) 323 * 324 * We'll define DLT_PFSYNC as: 325 * 326 * 18 on NetBSD, OpenBSD, DragonFly BSD, and Darwin; 327 * 328 * 121 on FreeBSD; 329 * 330 * 246 everywhere else. 331 * 332 * We'll define DLT_HHDLC as 121 on everything except for FreeBSD; 333 * anybody who wants to compile, on FreeBSD, code that uses DLT_HHDLC 334 * is out of luck. 335 * 336 * We'll define LINKTYPE_PFSYNC as 246 on *all* platforms, so that 337 * savefiles written using *this* code won't use 18 or 121 for PFSYNC, 338 * they'll all use 246. 339 * 340 * Code that uses pcap_datalink() to determine the link-layer header 341 * type of a savefile won't, when built and run on FreeBSD, be able 342 * to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC capture 343 * files, as pcap_datalink() will give 121 for both of them. Code 344 * that doesn't, such as the code in Wireshark, will be able to 345 * distinguish between them. 346 * 347 * FreeBSD's libpcap won't map a link-layer header type of 18 - i.e., 348 * DLT_PFSYNC files from OpenBSD and possibly older versions of NetBSD, 349 * DragonFly BSD, and macOS - to DLT_PFSYNC, so code built with FreeBSD's 350 * libpcap won't treat those files as DLT_PFSYNC files. 351 * 352 * Other libpcaps won't map a link-layer header type of 121 to DLT_PFSYNC; 353 * this means they can read DLT_HHDLC files, if any exist, but won't 354 * treat pcap files written by any older versions of FreeBSD libpcap that 355 * didn't map to 246 as DLT_PFSYNC files. 356 */ 357 #ifdef __FreeBSD__ 358 #define DLT_PFSYNC 121 359 #else 360 #define DLT_HHDLC 121 361 #endif 362 363 /* 364 * This is for RFC 2625 IP-over-Fibre Channel. 365 * 366 * This is not for use with raw Fibre Channel, where the link-layer 367 * header starts with a Fibre Channel frame header; it's for IP-over-FC, 368 * where the link-layer header starts with an RFC 2625 Network_Header 369 * field. 370 */ 371 #define DLT_IP_OVER_FC 122 372 373 /* 374 * This is for Full Frontal ATM on Solaris with SunATM, with a 375 * pseudo-header followed by an AALn PDU. 376 * 377 * There may be other forms of Full Frontal ATM on other OSes, 378 * with different pseudo-headers. 379 * 380 * If ATM software returns a pseudo-header with VPI/VCI information 381 * (and, ideally, packet type information, e.g. signalling, ILMI, 382 * LANE, LLC-multiplexed traffic, etc.), it should not use 383 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump 384 * and the like don't have to infer the presence or absence of a 385 * pseudo-header and the form of the pseudo-header. 386 */ 387 #define DLT_SUNATM 123 /* Solaris+SunATM */ 388 389 /* 390 * Reserved as per request from Kent Dahlgren <kent@praesum.com> 391 * for private use. 392 */ 393 #define DLT_RIO 124 /* RapidIO */ 394 #define DLT_PCI_EXP 125 /* PCI Express */ 395 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 396 397 /* 398 * Header for 802.11 plus a number of bits of link-layer information 399 * including radio information, used by some recent BSD drivers as 400 * well as the madwifi Atheros driver for Linux. 401 */ 402 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ 403 404 /* 405 * Reserved for the TZSP encapsulation, as per request from 406 * Chris Waters <chris.waters@networkchemistry.com> 407 * TZSP is a generic encapsulation for any other link type, 408 * which includes a means to include meta-information 409 * with the packet, e.g. signal strength and channel 410 * for 802.11 packets. 411 */ 412 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 413 414 /* 415 * BSD's ARCNET headers have the source host, destination host, 416 * and type at the beginning of the packet; that's what's handed 417 * up to userland via BPF. 418 * 419 * Linux's ARCNET headers, however, have a 2-byte offset field 420 * between the host IDs and the type; that's what's handed up 421 * to userland via PF_PACKET sockets. 422 * 423 * We therefore have to have separate DLT_ values for them. 424 */ 425 #define DLT_ARCNET_LINUX 129 /* ARCNET */ 426 427 /* 428 * Juniper-private data link types, as per request from 429 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 430 * for passing on chassis-internal metainformation such as 431 * QOS profiles, etc.. 432 */ 433 #define DLT_JUNIPER_MLPPP 130 434 #define DLT_JUNIPER_MLFR 131 435 #define DLT_JUNIPER_ES 132 436 #define DLT_JUNIPER_GGSN 133 437 #define DLT_JUNIPER_MFR 134 438 #define DLT_JUNIPER_ATM2 135 439 #define DLT_JUNIPER_SERVICES 136 440 #define DLT_JUNIPER_ATM1 137 441 442 /* 443 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 444 * <dieter@apple.com>. The header that's presented is an Ethernet-like 445 * header: 446 * 447 * #define FIREWIRE_EUI64_LEN 8 448 * struct firewire_header { 449 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 450 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 451 * u_short firewire_type; 452 * }; 453 * 454 * with "firewire_type" being an Ethernet type value, rather than, 455 * for example, raw GASP frames being handed up. 456 */ 457 #define DLT_APPLE_IP_OVER_IEEE1394 138 458 459 /* 460 * Various SS7 encapsulations, as per a request from Jeff Morriss 461 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 462 */ 463 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 464 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 465 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 466 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 467 468 /* 469 * DOCSIS MAC frames. 470 */ 471 #define DLT_DOCSIS 143 472 473 /* 474 * Linux-IrDA packets. Protocol defined at http://www.irda.org. 475 * Those packets include IrLAP headers and above (IrLMP...), but 476 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy 477 * framing can be handled by the hardware and depend on the bitrate. 478 * This is exactly the format you would get capturing on a Linux-IrDA 479 * interface (irdaX), but not on a raw serial port. 480 * Note the capture is done in "Linux-cooked" mode, so each packet include 481 * a fake packet header (struct sll_header). This is because IrDA packet 482 * decoding is dependant on the direction of the packet (incoming or 483 * outgoing). 484 * When/if other platform implement IrDA capture, we may revisit the 485 * issue and define a real DLT_IRDA... 486 * Jean II 487 */ 488 #define DLT_LINUX_IRDA 144 489 490 /* 491 * Reserved for IBM SP switch and IBM Next Federation switch. 492 */ 493 #define DLT_IBM_SP 145 494 #define DLT_IBM_SN 146 495 496 /* 497 * Reserved for private use. If you have some link-layer header type 498 * that you want to use within your organization, with the capture files 499 * using that link-layer header type not ever be sent outside your 500 * organization, you can use these values. 501 * 502 * No libpcap release will use these for any purpose, nor will any 503 * tcpdump release use them, either. 504 * 505 * Do *NOT* use these in capture files that you expect anybody not using 506 * your private versions of capture-file-reading tools to read; in 507 * particular, do *NOT* use them in products, otherwise you may find that 508 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 509 * read capture files from your firewall/intrusion detection/traffic 510 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 511 * and you may also find that the developers of those applications will 512 * not accept patches to let them read those files. 513 * 514 * Also, do not use them if somebody might send you a capture using them 515 * for *their* private type and tools using them for *your* private type 516 * would have to read them. 517 * 518 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value, 519 * as per the comment above, and use the type you're given. 520 */ 521 #define DLT_USER0 147 522 #define DLT_USER1 148 523 #define DLT_USER2 149 524 #define DLT_USER3 150 525 #define DLT_USER4 151 526 #define DLT_USER5 152 527 #define DLT_USER6 153 528 #define DLT_USER7 154 529 #define DLT_USER8 155 530 #define DLT_USER9 156 531 #define DLT_USER10 157 532 #define DLT_USER11 158 533 #define DLT_USER12 159 534 #define DLT_USER13 160 535 #define DLT_USER14 161 536 #define DLT_USER15 162 537 538 /* 539 * For future use with 802.11 captures - defined by AbsoluteValue 540 * Systems to store a number of bits of link-layer information 541 * including radio information: 542 * 543 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 544 * 545 * but it might be used by some non-AVS drivers now or in the 546 * future. 547 */ 548 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 549 550 /* 551 * Juniper-private data link type, as per request from 552 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 553 * for passing on chassis-internal metainformation such as 554 * QOS profiles, etc.. 555 */ 556 #define DLT_JUNIPER_MONITOR 164 557 558 /* 559 * BACnet MS/TP frames. 560 */ 561 #define DLT_BACNET_MS_TP 165 562 563 /* 564 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. 565 * 566 * This is used in some OSes to allow a kernel socket filter to distinguish 567 * between incoming and outgoing packets, on a socket intended to 568 * supply pppd with outgoing packets so it can do dial-on-demand and 569 * hangup-on-lack-of-demand; incoming packets are filtered out so they 570 * don't cause pppd to hold the connection up (you don't want random 571 * input packets such as port scans, packets from old lost connections, 572 * etc. to force the connection to stay up). 573 * 574 * The first byte of the PPP header (0xff03) is modified to accommodate 575 * the direction - 0x00 = IN, 0x01 = OUT. 576 */ 577 #define DLT_PPP_PPPD 166 578 579 /* 580 * Names for backwards compatibility with older versions of some PPP 581 * software; new software should use DLT_PPP_PPPD. 582 */ 583 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 584 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 585 586 /* 587 * Juniper-private data link type, as per request from 588 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 589 * for passing on chassis-internal metainformation such as 590 * QOS profiles, cookies, etc.. 591 */ 592 #define DLT_JUNIPER_PPPOE 167 593 #define DLT_JUNIPER_PPPOE_ATM 168 594 595 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 596 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 597 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 598 599 /* 600 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line 601 * monitoring equipment. 602 */ 603 #define DLT_GCOM_T1E1 172 604 #define DLT_GCOM_SERIAL 173 605 606 /* 607 * Juniper-private data link type, as per request from 608 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used 609 * for internal communication to Physical Interface Cards (PIC) 610 */ 611 #define DLT_JUNIPER_PIC_PEER 174 612 613 /* 614 * Link types requested by Gregor Maier <gregor@endace.com> of Endace 615 * Measurement Systems. They add an ERF header (see 616 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 617 * the link-layer header. 618 */ 619 #define DLT_ERF_ETH 175 /* Ethernet */ 620 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 621 622 /* 623 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD 624 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 625 * includes additional information before the LAPD header, so it's 626 * not necessarily a generic LAPD header. 627 */ 628 #define DLT_LINUX_LAPD 177 629 630 /* 631 * Juniper-private data link type, as per request from 632 * Hannes Gredler <hannes@juniper.net>. 633 * The DLT_ are used for prepending meta-information 634 * like interface index, interface name 635 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 636 */ 637 #define DLT_JUNIPER_ETHER 178 638 #define DLT_JUNIPER_PPP 179 639 #define DLT_JUNIPER_FRELAY 180 640 #define DLT_JUNIPER_CHDLC 181 641 642 /* 643 * Multi Link Frame Relay (FRF.16) 644 */ 645 #define DLT_MFR 182 646 647 /* 648 * Juniper-private data link type, as per request from 649 * Hannes Gredler <hannes@juniper.net>. 650 * The DLT_ is used for internal communication with a 651 * voice Adapter Card (PIC) 652 */ 653 #define DLT_JUNIPER_VP 183 654 655 /* 656 * Arinc 429 frames. 657 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 658 * Every frame contains a 32bit A429 label. 659 * More documentation on Arinc 429 can be found at 660 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 661 */ 662 #define DLT_A429 184 663 664 /* 665 * Arinc 653 Interpartition Communication messages. 666 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 667 * Please refer to the A653-1 standard for more information. 668 */ 669 #define DLT_A653_ICM 185 670 671 /* 672 * This used to be "USB packets, beginning with a USB setup header; 673 * requested by Paolo Abeni <paolo.abeni@email.it>." 674 * 675 * However, that header didn't work all that well - it left out some 676 * useful information - and was abandoned in favor of the DLT_USB_LINUX 677 * header. 678 * 679 * This is now used by FreeBSD for its BPF taps for USB; that has its 680 * own headers. So it is written, so it is done. 681 * 682 * For source-code compatibility, we also define DLT_USB to have this 683 * value. We do it numerically so that, if code that includes this 684 * file (directly or indirectly) also includes an OS header that also 685 * defines DLT_USB as 186, we don't get a redefinition warning. 686 * (NetBSD 7 does that.) 687 */ 688 #define DLT_USB_FREEBSD 186 689 #define DLT_USB 186 690 691 /* 692 * Bluetooth HCI UART transport layer (part H:4); requested by 693 * Paolo Abeni. 694 */ 695 #define DLT_BLUETOOTH_HCI_H4 187 696 697 /* 698 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 699 * <cruz_petagay@bah.com>. 700 */ 701 #define DLT_IEEE802_16_MAC_CPS 188 702 703 /* 704 * USB packets, beginning with a Linux USB header; requested by 705 * Paolo Abeni <paolo.abeni@email.it>. 706 */ 707 #define DLT_USB_LINUX 189 708 709 /* 710 * Controller Area Network (CAN) v. 2.0B packets. 711 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 712 * Used to dump CAN packets coming from a CAN Vector board. 713 * More documentation on the CAN v2.0B frames can be found at 714 * http://www.can-cia.org/downloads/?269 715 */ 716 #define DLT_CAN20B 190 717 718 /* 719 * IEEE 802.15.4, with address fields padded, as is done by Linux 720 * drivers; requested by Juergen Schimmer. 721 */ 722 #define DLT_IEEE802_15_4_LINUX 191 723 724 /* 725 * Per Packet Information encapsulated packets. 726 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 727 */ 728 #define DLT_PPI 192 729 730 /* 731 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 732 * requested by Charles Clancy. 733 */ 734 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 735 736 /* 737 * Juniper-private data link type, as per request from 738 * Hannes Gredler <hannes@juniper.net>. 739 * The DLT_ is used for internal communication with a 740 * integrated service module (ISM). 741 */ 742 #define DLT_JUNIPER_ISM 194 743 744 /* 745 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 746 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. 747 * For this one, we expect the FCS to be present at the end of the frame; 748 * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used. 749 * 750 * We keep the name DLT_IEEE802_15_4 as an alias for backwards 751 * compatibility, but, again, this should *only* be used for 802.15.4 752 * frames that include the FCS. 753 */ 754 #define DLT_IEEE802_15_4_WITHFCS 195 755 #define DLT_IEEE802_15_4 DLT_IEEE802_15_4_WITHFCS 756 757 /* 758 * Various link-layer types, with a pseudo-header, for SITA 759 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). 760 */ 761 #define DLT_SITA 196 762 763 /* 764 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 765 * encapsulates Endace ERF records. Requested by Stephen Donnelly 766 * <stephen@endace.com>. 767 */ 768 #define DLT_ERF 197 769 770 /* 771 * Special header prepended to Ethernet packets when capturing from a 772 * u10 Networks board. Requested by Phil Mulholland 773 * <phil@u10networks.com>. 774 */ 775 #define DLT_RAIF1 198 776 777 /* 778 * IPMB packet for IPMI, beginning with a 2-byte header, followed by 779 * the I2C slave address, followed by the netFn and LUN, etc.. 780 * Requested by Chanthy Toeung <chanthy.toeung@ca.kontron.com>. 781 * 782 * XXX - this used to be called DLT_IPMB, back when we got the 783 * impression from the email thread requesting it that the packet 784 * had no extra 2-byte header. We've renamed it; if anybody used 785 * DLT_IPMB and assumed no 2-byte header, this will cause the compile 786 * to fail, at which point we'll have to figure out what to do about 787 * the two header types using the same DLT_/LINKTYPE_ value. If that 788 * doesn't happen, we'll assume nobody used it and that the redefinition 789 * is safe. 790 */ 791 #define DLT_IPMB_KONTRON 199 792 793 /* 794 * Juniper-private data link type, as per request from 795 * Hannes Gredler <hannes@juniper.net>. 796 * The DLT_ is used for capturing data on a secure tunnel interface. 797 */ 798 #define DLT_JUNIPER_ST 200 799 800 /* 801 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 802 * that includes direction information; requested by Paolo Abeni. 803 */ 804 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 805 806 /* 807 * AX.25 packet with a 1-byte KISS header; see 808 * 809 * http://www.ax25.net/kiss.htm 810 * 811 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>. 812 */ 813 #define DLT_AX25_KISS 202 814 815 /* 816 * LAPD packets from an ISDN channel, starting with the address field, 817 * with no pseudo-header. 818 * Requested by Varuna De Silva <varunax@gmail.com>. 819 */ 820 #define DLT_LAPD 203 821 822 /* 823 * PPP, with a one-byte direction pseudo-header prepended - zero means 824 * "received by this host", non-zero (any non-zero value) means "sent by 825 * this host" - as per Will Barker <w.barker@zen.co.uk>. 826 */ 827 #define DLT_PPP_WITH_DIR 204 /* Don't confuse with DLT_PPP_WITH_DIRECTION */ 828 829 /* 830 * Cisco HDLC, with a one-byte direction pseudo-header prepended - zero 831 * means "received by this host", non-zero (any non-zero value) means 832 * "sent by this host" - as per Will Barker <w.barker@zen.co.uk>. 833 */ 834 #define DLT_C_HDLC_WITH_DIR 205 835 836 /* 837 * Frame Relay, with a one-byte direction pseudo-header prepended - zero 838 * means "received by this host" (DCE -> DTE), non-zero (any non-zero 839 * value) means "sent by this host" (DTE -> DCE) - as per Will Barker 840 * <w.barker@zen.co.uk>. 841 */ 842 #define DLT_FRELAY_WITH_DIR 206 843 844 /* 845 * LAPB, with a one-byte direction pseudo-header prepended - zero means 846 * "received by this host" (DCE -> DTE), non-zero (any non-zero value) 847 * means "sent by this host" (DTE -> DCE)- as per Will Barker 848 * <w.barker@zen.co.uk>. 849 */ 850 #define DLT_LAPB_WITH_DIR 207 851 852 /* 853 * 208 is reserved for an as-yet-unspecified proprietary link-layer 854 * type, as requested by Will Barker. 855 */ 856 857 /* 858 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 859 * <avn@pigeonpoint.com>. 860 */ 861 #define DLT_IPMB_LINUX 209 862 863 /* 864 * FlexRay automotive bus - http://www.flexray.com/ - as requested 865 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 866 */ 867 #define DLT_FLEXRAY 210 868 869 /* 870 * Media Oriented Systems Transport (MOST) bus for multimedia 871 * transport - http://www.mostcooperation.com/ - as requested 872 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 873 */ 874 #define DLT_MOST 211 875 876 /* 877 * Local Interconnect Network (LIN) bus for vehicle networks - 878 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 879 * <hannes.kaelber@x2e.de>. 880 */ 881 #define DLT_LIN 212 882 883 /* 884 * X2E-private data link type used for serial line capture, 885 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 886 */ 887 #define DLT_X2E_SERIAL 213 888 889 /* 890 * X2E-private data link type used for the Xoraya data logger 891 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 892 */ 893 #define DLT_X2E_XORAYA 214 894 895 /* 896 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 897 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 898 * of 0 as preamble, one octet of SFD, one octet of frame length+ 899 * reserved bit, and then the MAC-layer data, starting with the 900 * frame control field). 901 * 902 * Requested by Max Filippov <jcmvbkbc@gmail.com>. 903 */ 904 #define DLT_IEEE802_15_4_NONASK_PHY 215 905 906 /* 907 * David Gibson <david@gibson.dropbear.id.au> requested this for 908 * captures from the Linux kernel /dev/input/eventN devices. This 909 * is used to communicate keystrokes and mouse movements from the 910 * Linux kernel to display systems, such as Xorg. 911 */ 912 #define DLT_LINUX_EVDEV 216 913 914 /* 915 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 916 * 917 * Requested by Harald Welte <laforge@gnumonks.org>. 918 */ 919 #define DLT_GSMTAP_UM 217 920 #define DLT_GSMTAP_ABIS 218 921 922 /* 923 * MPLS, with an MPLS label as the link-layer header. 924 * Requested by Michele Marchetto <michele@openbsd.org> on behalf 925 * of OpenBSD. 926 */ 927 #define DLT_MPLS 219 928 929 /* 930 * USB packets, beginning with a Linux USB header, with the USB header 931 * padded to 64 bytes; required for memory-mapped access. 932 */ 933 #define DLT_USB_LINUX_MMAPPED 220 934 935 /* 936 * DECT packets, with a pseudo-header; requested by 937 * Matthias Wenzel <tcpdump@mazzoo.de>. 938 */ 939 #define DLT_DECT 221 940 941 /* 942 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov> 943 * Date: Mon, 11 May 2009 11:18:30 -0500 944 * 945 * DLT_AOS. We need it for AOS Space Data Link Protocol. 946 * I have already written dissectors for but need an OK from 947 * legal before I can submit a patch. 948 * 949 */ 950 #define DLT_AOS 222 951 952 /* 953 * Wireless HART (Highway Addressable Remote Transducer) 954 * From the HART Communication Foundation 955 * IES/PAS 62591 956 * 957 * Requested by Sam Roberts <vieuxtech@gmail.com>. 958 */ 959 #define DLT_WIHART 223 960 961 /* 962 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 963 * Requested by Kahou Lei <kahou82@gmail.com>. 964 */ 965 #define DLT_FC_2 224 966 967 /* 968 * Fibre Channel FC-2 frames, beginning with an encoding of the 969 * SOF, and ending with an encoding of the EOF. 970 * 971 * The encodings represent the frame delimiters as 4-byte sequences 972 * representing the corresponding ordered sets, with K28.5 973 * represented as 0xBC, and the D symbols as the corresponding 974 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 975 * is represented as 0xBC 0xB5 0x55 0x55. 976 * 977 * Requested by Kahou Lei <kahou82@gmail.com>. 978 */ 979 #define DLT_FC_2_WITH_FRAME_DELIMS 225 980 981 /* 982 * Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>. 983 * 984 * The pseudo-header starts with a one-byte version number; for version 2, 985 * the pseudo-header is: 986 * 987 * struct dl_ipnetinfo { 988 * uint8_t dli_version; 989 * uint8_t dli_family; 990 * uint16_t dli_htype; 991 * uint32_t dli_pktlen; 992 * uint32_t dli_ifindex; 993 * uint32_t dli_grifindex; 994 * uint32_t dli_zsrc; 995 * uint32_t dli_zdst; 996 * }; 997 * 998 * dli_version is 2 for the current version of the pseudo-header. 999 * 1000 * dli_family is a Solaris address family value, so it's 2 for IPv4 1001 * and 26 for IPv6. 1002 * 1003 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 1004 * packets, and 2 for packets arriving from another zone on the same 1005 * machine. 1006 * 1007 * dli_pktlen is the length of the packet data following the pseudo-header 1008 * (so the captured length minus dli_pktlen is the length of the 1009 * pseudo-header, assuming the entire pseudo-header was captured). 1010 * 1011 * dli_ifindex is the interface index of the interface on which the 1012 * packet arrived. 1013 * 1014 * dli_grifindex is the group interface index number (for IPMP interfaces). 1015 * 1016 * dli_zsrc is the zone identifier for the source of the packet. 1017 * 1018 * dli_zdst is the zone identifier for the destination of the packet. 1019 * 1020 * A zone number of 0 is the global zone; a zone number of 0xffffffff 1021 * means that the packet arrived from another host on the network, not 1022 * from another zone on the same machine. 1023 * 1024 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 1025 * which of those it is. 1026 */ 1027 #define DLT_IPNET 226 1028 1029 /* 1030 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 1031 * by Linux SocketCAN, and with multi-byte numerical fields in that header 1032 * in big-endian byte order. 1033 * 1034 * See Documentation/networking/can.txt in the Linux source. 1035 * 1036 * Requested by Felix Obenhuber <felix@obenhuber.de>. 1037 */ 1038 #define DLT_CAN_SOCKETCAN 227 1039 1040 /* 1041 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 1042 * whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>. 1043 */ 1044 #define DLT_IPV4 228 1045 #define DLT_IPV6 229 1046 1047 /* 1048 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1049 * nothing), and with no FCS at the end of the frame; requested by 1050 * Jon Smirl <jonsmirl@gmail.com>. 1051 */ 1052 #define DLT_IEEE802_15_4_NOFCS 230 1053 1054 /* 1055 * Raw D-Bus: 1056 * 1057 * http://www.freedesktop.org/wiki/Software/dbus 1058 * 1059 * messages: 1060 * 1061 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 1062 * 1063 * starting with the endianness flag, followed by the message type, etc., 1064 * but without the authentication handshake before the message sequence: 1065 * 1066 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1067 * 1068 * Requested by Martin Vidner <martin@vidner.net>. 1069 */ 1070 #define DLT_DBUS 231 1071 1072 /* 1073 * Juniper-private data link type, as per request from 1074 * Hannes Gredler <hannes@juniper.net>. 1075 */ 1076 #define DLT_JUNIPER_VS 232 1077 #define DLT_JUNIPER_SRX_E2E 233 1078 #define DLT_JUNIPER_FIBRECHANNEL 234 1079 1080 /* 1081 * DVB-CI (DVB Common Interface for communication between a PC Card 1082 * module and a DVB receiver). See 1083 * 1084 * http://www.kaiser.cx/pcap-dvbci.html 1085 * 1086 * for the specification. 1087 * 1088 * Requested by Martin Kaiser <martin@kaiser.cx>. 1089 */ 1090 #define DLT_DVB_CI 235 1091 1092 /* 1093 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1094 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1095 * <hans-christoph.schemmel@cinterion.com>. 1096 */ 1097 #define DLT_MUX27010 236 1098 1099 /* 1100 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1101 * <barisdemiray@gmail.com>. 1102 */ 1103 #define DLT_STANAG_5066_D_PDU 237 1104 1105 /* 1106 * Juniper-private data link type, as per request from 1107 * Hannes Gredler <hannes@juniper.net>. 1108 */ 1109 #define DLT_JUNIPER_ATM_CEMIC 238 1110 1111 /* 1112 * NetFilter LOG messages 1113 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1114 * 1115 * Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl> 1116 */ 1117 #define DLT_NFLOG 239 1118 1119 /* 1120 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1121 * for Ethernet packets with a 4-byte pseudo-header and always 1122 * with the payload including the FCS, as supplied by their 1123 * netANALYZER hardware and software. 1124 * 1125 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1126 */ 1127 #define DLT_NETANALYZER 240 1128 1129 /* 1130 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1131 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1132 * with the Ethernet header preceded by 7 bytes of preamble and 1133 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1134 * software. 1135 * 1136 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1137 */ 1138 #define DLT_NETANALYZER_TRANSPARENT 241 1139 1140 /* 1141 * IP-over-InfiniBand, as specified by RFC 4391. 1142 * 1143 * Requested by Petr Sumbera <petr.sumbera@oracle.com>. 1144 */ 1145 #define DLT_IPOIB 242 1146 1147 /* 1148 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0). 1149 * 1150 * Requested by Guy Martin <gmsoft@tuxicoman.be>. 1151 */ 1152 #define DLT_MPEG_2_TS 243 1153 1154 /* 1155 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as 1156 * used by their ng40 protocol tester. 1157 * 1158 * Requested by Jens Grimmer <jens.grimmer@ng4t.com>. 1159 */ 1160 #define DLT_NG40 244 1161 1162 /* 1163 * Pseudo-header giving adapter number and flags, followed by an NFC 1164 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU, 1165 * as specified by NFC Forum Logical Link Control Protocol Technical 1166 * Specification LLCP 1.1. 1167 * 1168 * Requested by Mike Wakerly <mikey@google.com>. 1169 */ 1170 #define DLT_NFC_LLCP 245 1171 1172 /* 1173 * 246 is used as LINKTYPE_PFSYNC; do not use it for any other purpose. 1174 * 1175 * DLT_PFSYNC has different values on different platforms, and all of 1176 * them collide with something used elsewhere. On platforms that 1177 * don't already define it, define it as 246. 1178 */ 1179 #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__) 1180 #define DLT_PFSYNC 246 1181 #endif 1182 1183 /* 1184 * Raw InfiniBand packets, starting with the Local Routing Header. 1185 * 1186 * Requested by Oren Kladnitsky <orenk@mellanox.com>. 1187 */ 1188 #define DLT_INFINIBAND 247 1189 1190 /* 1191 * SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6). 1192 * 1193 * Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>. 1194 */ 1195 #define DLT_SCTP 248 1196 1197 /* 1198 * USB packets, beginning with a USBPcap header. 1199 * 1200 * Requested by Tomasz Mon <desowin@gmail.com> 1201 */ 1202 #define DLT_USBPCAP 249 1203 1204 /* 1205 * Schweitzer Engineering Laboratories "RTAC" product serial-line 1206 * packets. 1207 * 1208 * Requested by Chris Bontje <chris_bontje@selinc.com>. 1209 */ 1210 #define DLT_RTAC_SERIAL 250 1211 1212 /* 1213 * Bluetooth Low Energy air interface link-layer packets. 1214 * 1215 * Requested by Mike Kershaw <dragorn@kismetwireless.net>. 1216 */ 1217 #define DLT_BLUETOOTH_LE_LL 251 1218 1219 /* 1220 * DLT type for upper-protocol layer PDU saves from wireshark. 1221 * 1222 * the actual contents are determined by two TAGs stored with each 1223 * packet: 1224 * EXP_PDU_TAG_LINKTYPE the link type (LINKTYPE_ value) of the 1225 * original packet. 1226 * 1227 * EXP_PDU_TAG_PROTO_NAME the name of the wireshark dissector 1228 * that can make sense of the data stored. 1229 */ 1230 #define DLT_WIRESHARK_UPPER_PDU 252 1231 1232 /* 1233 * DLT type for the netlink protocol (nlmon devices). 1234 */ 1235 #define DLT_NETLINK 253 1236 1237 /* 1238 * Bluetooth Linux Monitor headers for the BlueZ stack. 1239 */ 1240 #define DLT_BLUETOOTH_LINUX_MONITOR 254 1241 1242 /* 1243 * Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as 1244 * captured by Ubertooth. 1245 */ 1246 #define DLT_BLUETOOTH_BREDR_BB 255 1247 1248 /* 1249 * Bluetooth Low Energy link layer packets, as captured by Ubertooth. 1250 */ 1251 #define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256 1252 1253 /* 1254 * PROFIBUS data link layer. 1255 */ 1256 #define DLT_PROFIBUS_DL 257 1257 1258 /* 1259 * Apple's DLT_PKTAP headers. 1260 * 1261 * Sadly, the folks at Apple either had no clue that the DLT_USERn values 1262 * are for internal use within an organization and partners only, and 1263 * didn't know that the right way to get a link-layer header type is to 1264 * ask tcpdump.org for one, or knew and didn't care, so they just 1265 * used DLT_USER2, which causes problems for everything except for 1266 * their version of tcpdump. 1267 * 1268 * So I'll just give them one; hopefully this will show up in a 1269 * libpcap release in time for them to get this into 10.10 Big Sur 1270 * or whatever Mavericks' successor is called. LINKTYPE_PKTAP 1271 * will be 258 *even on macOS*; that is *intentional*, so that 1272 * PKTAP files look the same on *all* OSes (different OSes can have 1273 * different numerical values for a given DLT_, but *MUST NOT* have 1274 * different values for what goes in a file, as files can be moved 1275 * between OSes!). 1276 * 1277 * When capturing, on a system with a Darwin-based OS, on a device 1278 * that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this 1279 * version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP, 1280 * and that will continue to be DLT_USER2 on Darwin-based OSes. That way, 1281 * binary compatibility with Mavericks is preserved for programs using 1282 * this version of libpcap. This does mean that if you were using 1283 * DLT_USER2 for some capture device on macOS, you can't do so with 1284 * this version of libpcap, just as you can't with Apple's libpcap - 1285 * on macOS, they define DLT_PKTAP to be DLT_USER2, so programs won't 1286 * be able to distinguish between PKTAP and whatever you were using 1287 * DLT_USER2 for. 1288 * 1289 * If the program saves the capture to a file using this version of 1290 * libpcap's pcap_dump code, the LINKTYPE_ value in the file will be 1291 * LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes. 1292 * That way, the file will *not* be a DLT_USER2 file. That means 1293 * that the latest version of tcpdump, when built with this version 1294 * of libpcap, and sufficiently recent versions of Wireshark will 1295 * be able to read those files and interpret them correctly; however, 1296 * Apple's version of tcpdump in OS X 10.9 won't be able to handle 1297 * them. (Hopefully, Apple will pick up this version of libpcap, 1298 * and the corresponding version of tcpdump, so that tcpdump will 1299 * be able to handle the old LINKTYPE_USER2 captures *and* the new 1300 * LINKTYPE_PKTAP captures.) 1301 */ 1302 #ifdef __APPLE__ 1303 #define DLT_PKTAP DLT_USER2 1304 #else 1305 #define DLT_PKTAP 258 1306 #endif 1307 1308 /* 1309 * Ethernet packets preceded by a header giving the last 6 octets 1310 * of the preamble specified by 802.3-2012 Clause 65, section 1311 * 65.1.3.2 "Transmit". 1312 */ 1313 #define DLT_EPON 259 1314 1315 /* 1316 * IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format" 1317 * in the PICMG HPM.2 specification. 1318 */ 1319 #define DLT_IPMI_HPM_2 260 1320 1321 /* 1322 * per Joshua Wright <jwright@hasborg.com>, formats for Zwave captures. 1323 */ 1324 #define DLT_ZWAVE_R1_R2 261 1325 #define DLT_ZWAVE_R3 262 1326 1327 /* 1328 * per Steve Karg <skarg@users.sourceforge.net>, formats for Wattstopper 1329 * Digital Lighting Management room bus serial protocol captures. 1330 */ 1331 #define DLT_WATTSTOPPER_DLM 263 1332 1333 /* 1334 * ISO 14443 contactless smart card messages. 1335 */ 1336 #define DLT_ISO_14443 264 1337 1338 /* 1339 * Radio data system (RDS) groups. IEC 62106. 1340 * Per Jonathan Brucker <jonathan.brucke@gmail.com>. 1341 */ 1342 #define DLT_RDS 265 1343 1344 /* 1345 * USB packets, beginning with a Darwin (macOS, etc.) header. 1346 */ 1347 #define DLT_USB_DARWIN 266 1348 1349 /* 1350 * OpenBSD DLT_OPENFLOW. 1351 */ 1352 #define DLT_OPENFLOW 267 1353 1354 /* 1355 * SDLC frames containing SNA PDUs. 1356 */ 1357 #define DLT_SDLC 268 1358 1359 /* 1360 * per "Selvig, Bjorn" <b.selvig@ti.com> used for 1361 * TI protocol sniffer. 1362 */ 1363 #define DLT_TI_LLN_SNIFFER 269 1364 1365 /* 1366 * per: Erik de Jong <erikdejong at gmail.com> for 1367 * https://github.com/eriknl/LoRaTap/releases/tag/v0.1 1368 */ 1369 #define DLT_LORATAP 270 1370 1371 /* 1372 * per: Stefanha at gmail.com for 1373 * http://lists.sandelman.ca/pipermail/tcpdump-workers/2017-May/000772.html 1374 * and: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/vsockmon.h 1375 * for: http://qemu-project.org/Features/VirtioVsock 1376 */ 1377 #define DLT_VSOCK 271 1378 1379 /* 1380 * Nordic Semiconductor Bluetooth LE sniffer. 1381 */ 1382 #define DLT_NORDIC_BLE 272 1383 1384 /* 1385 * Excentis DOCSIS 3.1 RF sniffer (XRA-31) 1386 * per: bruno.verstuyft at excentis.com 1387 * http://www.xra31.com/xra-header 1388 */ 1389 #define DLT_DOCSIS31_XRA31 273 1390 1391 /* 1392 * mPackets, as specified by IEEE 802.3br Figure 99-4, starting 1393 * with the preamble and always ending with a CRC field. 1394 */ 1395 #define DLT_ETHERNET_MPACKET 274 1396 1397 /* 1398 * DisplayPort AUX channel monitoring data as specified by VESA 1399 * DisplayPort(DP) Standard preceded by a pseudo-header. 1400 * per dirk.eibach at gdsys.cc 1401 */ 1402 #define DLT_DISPLAYPORT_AUX 275 1403 1404 /* 1405 * Linux cooked sockets v2. 1406 */ 1407 #define DLT_LINUX_SLL2 276 1408 1409 /* 1410 * In case the code that includes this file (directly or indirectly) 1411 * has also included OS files that happen to define DLT_MATCHING_MAX, 1412 * with a different value (perhaps because that OS hasn't picked up 1413 * the latest version of our DLT definitions), we undefine the 1414 * previous value of DLT_MATCHING_MAX. 1415 */ 1416 #ifdef DLT_MATCHING_MAX 1417 #undef DLT_MATCHING_MAX 1418 #endif 1419 #define DLT_MATCHING_MAX 276 /* highest value in the "matching" range */ 1420 1421 /* 1422 * DLT and savefile link type values are split into a class and 1423 * a member of that class. A class value of 0 indicates a regular 1424 * DLT_/LINKTYPE_ value. 1425 */ 1426 #define DLT_CLASS(x) ((x) & 0x03ff0000) 1427 1428 /* 1429 * NetBSD-specific generic "raw" link type. The class value indicates 1430 * that this is the generic raw type, and the lower 16 bits are the 1431 * address family we're dealing with. Those values are NetBSD-specific; 1432 * do not assume that they correspond to AF_ values for your operating 1433 * system. 1434 */ 1435 #define DLT_CLASS_NETBSD_RAWAF 0x02240000 1436 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af)) 1437 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff) 1438 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF) 1439 1440 #endif /* !_NET_DLT_H_ */ 1441