1 /*- 2 * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from the Stanford/CMU enet packet filter, 6 * (net/enet.c) distributed as part of 4.3BSD, and code contributed 7 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence 8 * Berkeley Laboratory. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)bpf.h 7.1 (Berkeley) 5/7/91 39 */ 40 41 /* 42 * This is libpcap's cut-down version of bpf.h; it includes only 43 * the stuff needed for the code generator and the userland BPF 44 * interpreter, and the libpcap APIs for setting filters, etc.. 45 * 46 * "pcap-bpf.c" will include the native OS version, as it deals with 47 * the OS's BPF implementation. 48 * 49 * At least two programs found by Google Code Search explicitly includes 50 * <pcap/bpf.h> (even though <pcap.h>/<pcap/pcap.h> includes it for you), 51 * so moving that stuff to <pcap/pcap.h> would break the build for some 52 * programs. 53 */ 54 55 /* 56 * If we've already included <net/bpf.h>, don't re-define this stuff. 57 * We assume BSD-style multiple-include protection in <net/bpf.h>, 58 * which is true of all but the oldest versions of FreeBSD and NetBSD, 59 * or Tru64 UNIX-style multiple-include protection (or, at least, 60 * Tru64 UNIX 5.x-style; I don't have earlier versions available to check), 61 * or AIX-style multiple-include protection (or, at least, AIX 5.x-style; 62 * I don't have earlier versions available to check). 63 * 64 * We do not check for BPF_MAJOR_VERSION, as that's defined by 65 * <linux/filter.h>, which is directly or indirectly included in some 66 * programs that also include pcap.h, and <linux/filter.h> doesn't 67 * define stuff we need. 68 * 69 * This also provides our own multiple-include protection. 70 */ 71 #if !defined(_NET_BPF_H_) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) 72 #define lib_pcap_bpf_h 73 74 #ifdef __cplusplus 75 extern "C" { 76 #endif 77 78 /* BSD style release date */ 79 #define BPF_RELEASE 199606 80 81 #ifdef MSDOS /* must be 32-bit */ 82 typedef long bpf_int32; 83 typedef unsigned long bpf_u_int32; 84 #else 85 typedef int bpf_int32; 86 typedef u_int bpf_u_int32; 87 #endif 88 89 /* 90 * Alignment macros. BPF_WORDALIGN rounds up to the next 91 * even multiple of BPF_ALIGNMENT. 92 * 93 * Tcpdump's print-pflog.c uses this, so we define it here. 94 */ 95 #ifndef __NetBSD__ 96 #define BPF_ALIGNMENT sizeof(bpf_int32) 97 #else 98 #define BPF_ALIGNMENT sizeof(long) 99 #endif 100 #define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1)) 101 102 /* 103 * Structure for "pcap_compile()", "pcap_setfilter()", etc.. 104 */ 105 struct bpf_program { 106 u_int bf_len; 107 struct bpf_insn *bf_insns; 108 }; 109 110 /* 111 * Link-layer header type codes. 112 * 113 * Do *NOT* add new values to this list without asking 114 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run 115 * the risk of using a value that's already being used for some other 116 * purpose, and of having tools that read libpcap-format captures not 117 * being able to handle captures with your new DLT_ value, with no hope 118 * that they will ever be changed to do so (as that would destroy their 119 * ability to read captures using that value for that other purpose). 120 * 121 * See 122 * 123 * http://www.tcpdump.org/linktypes.html 124 * 125 * for detailed descriptions of some of these link-layer header types. 126 */ 127 128 /* 129 * These are the types that are the same on all platforms, and that 130 * have been defined by <net/bpf.h> for ages. 131 */ 132 #define DLT_NULL 0 /* BSD loopback encapsulation */ 133 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 134 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 135 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 136 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 137 #define DLT_CHAOS 5 /* Chaos */ 138 #define DLT_IEEE802 6 /* 802.5 Token Ring */ 139 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ 140 #define DLT_SLIP 8 /* Serial Line IP */ 141 #define DLT_PPP 9 /* Point-to-point Protocol */ 142 #define DLT_FDDI 10 /* FDDI */ 143 144 /* 145 * These are types that are different on some platforms, and that 146 * have been defined by <net/bpf.h> for ages. We use #ifdefs to 147 * detect the BSDs that define them differently from the traditional 148 * libpcap <net/bpf.h> 149 * 150 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, 151 * but I don't know what the right #define is for BSD/OS. 152 */ 153 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ 154 155 #ifdef __OpenBSD__ 156 #define DLT_RAW 14 /* raw IP */ 157 #else 158 #define DLT_RAW 12 /* raw IP */ 159 #endif 160 161 /* 162 * Given that the only OS that currently generates BSD/OS SLIP or PPP 163 * is, well, BSD/OS, arguably everybody should have chosen its values 164 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they 165 * didn't. So it goes. 166 */ 167 #if defined(__NetBSD__) || defined(__FreeBSD__) 168 #ifndef DLT_SLIP_BSDOS 169 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ 170 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ 171 #endif 172 #else 173 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 174 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 175 #endif 176 177 /* 178 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is. 179 * 180 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG 181 * as 117 so that pflog captures would use a link-layer header type 182 * value that didn't collide with any other values. On all 183 * platforms other than OpenBSD, we defined DLT_PFLOG as 117, 184 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG. 185 * 186 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well. 187 * 188 * Don't use 17 for anything else. 189 */ 190 191 /* 192 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and 193 * Mac OS X; don't use it for anything else. (FreeBSD uses 121, 194 * which collides with DLT_HHDLC, even though it doesn't use 18 195 * for anything and doesn't appear to have ever used it for anything.) 196 * 197 * We define it as 18 on those platforms; it is, unfortunately, used 198 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC 199 * in general. As the packet format for it, like that for 200 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent, 201 * we don't support printing it in tcpdump except on OSes that 202 * have the relevant header files, so it's not that useful on 203 * other platforms. 204 */ 205 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__) 206 #define DLT_PFSYNC 18 207 #endif 208 209 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 210 211 /* 212 * Apparently Redback uses this for its SmartEdge 400/800. I hope 213 * nobody else decided to use it, too. 214 */ 215 #define DLT_REDBACK_SMARTEDGE 32 216 217 /* 218 * These values are defined by NetBSD; other platforms should refrain from 219 * using them for other purposes, so that NetBSD savefiles with link 220 * types of 50 or 51 can be read as this type on all platforms. 221 */ 222 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 223 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 224 225 /* 226 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 227 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 228 * header has 6 bytes of unknown data, something that appears to be an 229 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 230 * I've seen. 231 */ 232 #define DLT_SYMANTEC_FIREWALL 99 233 234 /* 235 * Values between 100 and 103 are used in capture file headers as 236 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 237 * that differ between platforms; don't use those values for new DLT_ 238 * new types. 239 */ 240 241 /* 242 * Values starting with 104 are used for newly-assigned link-layer 243 * header type values; for those link-layer header types, the DLT_ 244 * value returned by pcap_datalink() and passed to pcap_open_dead(), 245 * and the LINKTYPE_ value that appears in capture files, are the 246 * same. 247 * 248 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 249 * the highest such value. 250 */ 251 #define DLT_MATCHING_MIN 104 252 253 /* 254 * This value was defined by libpcap 0.5; platforms that have defined 255 * it with a different value should define it here with that value - 256 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 257 * whatever value that happens to be, so programs will correctly 258 * handle files with that link type regardless of the value of 259 * DLT_C_HDLC. 260 * 261 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 262 * compatibility with programs written for BSD/OS. 263 * 264 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 265 * for source compatibility with programs written for libpcap 0.5. 266 */ 267 #define DLT_C_HDLC 104 /* Cisco HDLC */ 268 #define DLT_CHDLC DLT_C_HDLC 269 270 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 271 272 /* 273 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, 274 * except when it isn't. (I.e., sometimes it's just raw IP, and 275 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, 276 * so that we don't have to worry about the link-layer header.) 277 */ 278 279 /* 280 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 281 * with other values. 282 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 283 * (DLCI, etc.). 284 */ 285 #define DLT_FRELAY 107 286 287 /* 288 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 289 * that the AF_ type in the link-layer header is in network byte order. 290 * 291 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so 292 * we don't use 12 for it in OSes other than OpenBSD. 293 */ 294 #ifdef __OpenBSD__ 295 #define DLT_LOOP 12 296 #else 297 #define DLT_LOOP 108 298 #endif 299 300 /* 301 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 302 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 303 * than OpenBSD. 304 */ 305 #ifdef __OpenBSD__ 306 #define DLT_ENC 13 307 #else 308 #define DLT_ENC 109 309 #endif 310 311 /* 312 * Values between 110 and 112 are reserved for use in capture file headers 313 * as link-layer types corresponding to DLT_ types that might differ 314 * between platforms; don't use those values for new DLT_ types 315 * other than the corresponding DLT_ types. 316 */ 317 318 /* 319 * This is for 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 * This 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. Its libpcap does DLT_ <-> LINKTYPE_ 369 * mapping, so it probably supports capturing on the pfsync device 370 * but not saving the captured data to a pcap file. 371 * 372 * OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC; 373 * their libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would 374 * use 18 in pcap files as well. 375 * 376 * NetBSD and DragonFly BSD also use 18 for DLT_PFSYNC; their 377 * libpcaps do DLT_ <-> LINKTYPE_ mapping, and neither has an entry 378 * for DLT_PFSYNC, so it might not be able to write out dump files 379 * with 18 as the link-layer header type. (Earlier versions might 380 * not have done mapping, in which case they'd work the same way 381 * OpenBSD does.) 382 * 383 * Mac OS X defines it as 18, but doesn't appear to use it as of 384 * Mac OS X 10.7.3. Its libpcap does DLT_ <-> LINKTYPE_ mapping. 385 * 386 * We'll define DLT_PFSYNC as 121 on FreeBSD and define it as 18 on 387 * all other platforms. We'll define DLT_HHDLC as 121 on everything 388 * except for FreeBSD; anybody who wants to compile, on FreeBSD, code 389 * that uses DLT_HHDLC is out of luck. 390 * 391 * We'll define LINKTYPE_PFSYNC as 18, *even on FreeBSD*, and map 392 * it, so that savefiles won't use 121 for PFSYNC - they'll all 393 * use 18. Code that uses pcap_datalink() to determine the link-layer 394 * header type of a savefile won't, when built and run on FreeBSD, 395 * be able to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC 396 * capture files; code that doesn't, such as the code in Wireshark, 397 * will be able to distinguish between them. 398 */ 399 #ifdef __FreeBSD__ 400 #define DLT_PFSYNC 121 401 #else 402 #define DLT_HHDLC 121 403 #endif 404 405 /* 406 * This is for RFC 2625 IP-over-Fibre Channel. 407 * 408 * This is not for use with raw Fibre Channel, where the link-layer 409 * header starts with a Fibre Channel frame header; it's for IP-over-FC, 410 * where the link-layer header starts with an RFC 2625 Network_Header 411 * field. 412 */ 413 #define DLT_IP_OVER_FC 122 414 415 /* 416 * This is for Full Frontal ATM on Solaris with SunATM, with a 417 * pseudo-header followed by an AALn PDU. 418 * 419 * There may be other forms of Full Frontal ATM on other OSes, 420 * with different pseudo-headers. 421 * 422 * If ATM software returns a pseudo-header with VPI/VCI information 423 * (and, ideally, packet type information, e.g. signalling, ILMI, 424 * LANE, LLC-multiplexed traffic, etc.), it should not use 425 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump 426 * and the like don't have to infer the presence or absence of a 427 * pseudo-header and the form of the pseudo-header. 428 */ 429 #define DLT_SUNATM 123 /* Solaris+SunATM */ 430 431 /* 432 * Reserved as per request from Kent Dahlgren <kent@praesum.com> 433 * for private use. 434 */ 435 #define DLT_RIO 124 /* RapidIO */ 436 #define DLT_PCI_EXP 125 /* PCI Express */ 437 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 438 439 /* 440 * Header for 802.11 plus a number of bits of link-layer information 441 * including radio information, used by some recent BSD drivers as 442 * well as the madwifi Atheros driver for Linux. 443 */ 444 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ 445 446 /* 447 * Reserved for the TZSP encapsulation, as per request from 448 * Chris Waters <chris.waters@networkchemistry.com> 449 * TZSP is a generic encapsulation for any other link type, 450 * which includes a means to include meta-information 451 * with the packet, e.g. signal strength and channel 452 * for 802.11 packets. 453 */ 454 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 455 456 /* 457 * BSD's ARCNET headers have the source host, destination host, 458 * and type at the beginning of the packet; that's what's handed 459 * up to userland via BPF. 460 * 461 * Linux's ARCNET headers, however, have a 2-byte offset field 462 * between the host IDs and the type; that's what's handed up 463 * to userland via PF_PACKET sockets. 464 * 465 * We therefore have to have separate DLT_ values for them. 466 */ 467 #define DLT_ARCNET_LINUX 129 /* ARCNET */ 468 469 /* 470 * Juniper-private data link types, as per request from 471 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 472 * for passing on chassis-internal metainformation such as 473 * QOS profiles, etc.. 474 */ 475 #define DLT_JUNIPER_MLPPP 130 476 #define DLT_JUNIPER_MLFR 131 477 #define DLT_JUNIPER_ES 132 478 #define DLT_JUNIPER_GGSN 133 479 #define DLT_JUNIPER_MFR 134 480 #define DLT_JUNIPER_ATM2 135 481 #define DLT_JUNIPER_SERVICES 136 482 #define DLT_JUNIPER_ATM1 137 483 484 /* 485 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 486 * <dieter@apple.com>. The header that's presented is an Ethernet-like 487 * header: 488 * 489 * #define FIREWIRE_EUI64_LEN 8 490 * struct firewire_header { 491 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 492 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 493 * u_short firewire_type; 494 * }; 495 * 496 * with "firewire_type" being an Ethernet type value, rather than, 497 * for example, raw GASP frames being handed up. 498 */ 499 #define DLT_APPLE_IP_OVER_IEEE1394 138 500 501 /* 502 * Various SS7 encapsulations, as per a request from Jeff Morriss 503 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 504 */ 505 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 506 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 507 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 508 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 509 510 /* 511 * DOCSIS MAC frames. 512 */ 513 #define DLT_DOCSIS 143 514 515 /* 516 * Linux-IrDA packets. Protocol defined at http://www.irda.org. 517 * Those packets include IrLAP headers and above (IrLMP...), but 518 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy 519 * framing can be handled by the hardware and depend on the bitrate. 520 * This is exactly the format you would get capturing on a Linux-IrDA 521 * interface (irdaX), but not on a raw serial port. 522 * Note the capture is done in "Linux-cooked" mode, so each packet include 523 * a fake packet header (struct sll_header). This is because IrDA packet 524 * decoding is dependant on the direction of the packet (incomming or 525 * outgoing). 526 * When/if other platform implement IrDA capture, we may revisit the 527 * issue and define a real DLT_IRDA... 528 * Jean II 529 */ 530 #define DLT_LINUX_IRDA 144 531 532 /* 533 * Reserved for IBM SP switch and IBM Next Federation switch. 534 */ 535 #define DLT_IBM_SP 145 536 #define DLT_IBM_SN 146 537 538 /* 539 * Reserved for private use. If you have some link-layer header type 540 * that you want to use within your organization, with the capture files 541 * using that link-layer header type not ever be sent outside your 542 * organization, you can use these values. 543 * 544 * No libpcap release will use these for any purpose, nor will any 545 * tcpdump release use them, either. 546 * 547 * Do *NOT* use these in capture files that you expect anybody not using 548 * your private versions of capture-file-reading tools to read; in 549 * particular, do *NOT* use them in products, otherwise you may find that 550 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 551 * read capture files from your firewall/intrusion detection/traffic 552 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 553 * and you may also find that the developers of those applications will 554 * not accept patches to let them read those files. 555 * 556 * Also, do not use them if somebody might send you a capture using them 557 * for *their* private type and tools using them for *your* private type 558 * would have to read them. 559 * 560 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value, 561 * as per the comment above, and use the type you're given. 562 */ 563 #define DLT_USER0 147 564 #define DLT_USER1 148 565 #define DLT_USER2 149 566 #define DLT_USER3 150 567 #define DLT_USER4 151 568 #define DLT_USER5 152 569 #define DLT_USER6 153 570 #define DLT_USER7 154 571 #define DLT_USER8 155 572 #define DLT_USER9 156 573 #define DLT_USER10 157 574 #define DLT_USER11 158 575 #define DLT_USER12 159 576 #define DLT_USER13 160 577 #define DLT_USER14 161 578 #define DLT_USER15 162 579 580 /* 581 * For future use with 802.11 captures - defined by AbsoluteValue 582 * Systems to store a number of bits of link-layer information 583 * including radio information: 584 * 585 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 586 * 587 * but it might be used by some non-AVS drivers now or in the 588 * future. 589 */ 590 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 591 592 /* 593 * Juniper-private data link type, as per request from 594 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 595 * for passing on chassis-internal metainformation such as 596 * QOS profiles, etc.. 597 */ 598 #define DLT_JUNIPER_MONITOR 164 599 600 /* 601 * BACnet MS/TP frames. 602 */ 603 #define DLT_BACNET_MS_TP 165 604 605 /* 606 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. 607 * 608 * This is used in some OSes to allow a kernel socket filter to distinguish 609 * between incoming and outgoing packets, on a socket intended to 610 * supply pppd with outgoing packets so it can do dial-on-demand and 611 * hangup-on-lack-of-demand; incoming packets are filtered out so they 612 * don't cause pppd to hold the connection up (you don't want random 613 * input packets such as port scans, packets from old lost connections, 614 * etc. to force the connection to stay up). 615 * 616 * The first byte of the PPP header (0xff03) is modified to accomodate 617 * the direction - 0x00 = IN, 0x01 = OUT. 618 */ 619 #define DLT_PPP_PPPD 166 620 621 /* 622 * Names for backwards compatibility with older versions of some PPP 623 * software; new software should use DLT_PPP_PPPD. 624 */ 625 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 626 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 627 628 /* 629 * Juniper-private data link type, as per request from 630 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 631 * for passing on chassis-internal metainformation such as 632 * QOS profiles, cookies, etc.. 633 */ 634 #define DLT_JUNIPER_PPPOE 167 635 #define DLT_JUNIPER_PPPOE_ATM 168 636 637 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 638 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 639 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 640 641 /* 642 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line 643 * monitoring equipment. 644 */ 645 #define DLT_GCOM_T1E1 172 646 #define DLT_GCOM_SERIAL 173 647 648 /* 649 * Juniper-private data link type, as per request from 650 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used 651 * for internal communication to Physical Interface Cards (PIC) 652 */ 653 #define DLT_JUNIPER_PIC_PEER 174 654 655 /* 656 * Link types requested by Gregor Maier <gregor@endace.com> of Endace 657 * Measurement Systems. They add an ERF header (see 658 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 659 * the link-layer header. 660 */ 661 #define DLT_ERF_ETH 175 /* Ethernet */ 662 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 663 664 /* 665 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD 666 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 667 * includes additional information before the LAPD header, so it's 668 * not necessarily a generic LAPD header. 669 */ 670 #define DLT_LINUX_LAPD 177 671 672 /* 673 * Juniper-private data link type, as per request from 674 * Hannes Gredler <hannes@juniper.net>. 675 * The DLT_ are used for prepending meta-information 676 * like interface index, interface name 677 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 678 */ 679 #define DLT_JUNIPER_ETHER 178 680 #define DLT_JUNIPER_PPP 179 681 #define DLT_JUNIPER_FRELAY 180 682 #define DLT_JUNIPER_CHDLC 181 683 684 /* 685 * Multi Link Frame Relay (FRF.16) 686 */ 687 #define DLT_MFR 182 688 689 /* 690 * Juniper-private data link type, as per request from 691 * Hannes Gredler <hannes@juniper.net>. 692 * The DLT_ is used for internal communication with a 693 * voice Adapter Card (PIC) 694 */ 695 #define DLT_JUNIPER_VP 183 696 697 /* 698 * Arinc 429 frames. 699 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 700 * Every frame contains a 32bit A429 label. 701 * More documentation on Arinc 429 can be found at 702 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 703 */ 704 #define DLT_A429 184 705 706 /* 707 * Arinc 653 Interpartition Communication messages. 708 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 709 * Please refer to the A653-1 standard for more information. 710 */ 711 #define DLT_A653_ICM 185 712 713 /* 714 * USB packets, beginning with a USB setup header; requested by 715 * Paolo Abeni <paolo.abeni@email.it>. 716 */ 717 #define DLT_USB 186 718 719 /* 720 * Bluetooth HCI UART transport layer (part H:4); requested by 721 * Paolo Abeni. 722 */ 723 #define DLT_BLUETOOTH_HCI_H4 187 724 725 /* 726 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 727 * <cruz_petagay@bah.com>. 728 */ 729 #define DLT_IEEE802_16_MAC_CPS 188 730 731 /* 732 * USB packets, beginning with a Linux USB header; requested by 733 * Paolo Abeni <paolo.abeni@email.it>. 734 */ 735 #define DLT_USB_LINUX 189 736 737 /* 738 * Controller Area Network (CAN) v. 2.0B packets. 739 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 740 * Used to dump CAN packets coming from a CAN Vector board. 741 * More documentation on the CAN v2.0B frames can be found at 742 * http://www.can-cia.org/downloads/?269 743 */ 744 #define DLT_CAN20B 190 745 746 /* 747 * IEEE 802.15.4, with address fields padded, as is done by Linux 748 * drivers; requested by Juergen Schimmer. 749 */ 750 #define DLT_IEEE802_15_4_LINUX 191 751 752 /* 753 * Per Packet Information encapsulated packets. 754 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 755 */ 756 #define DLT_PPI 192 757 758 /* 759 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 760 * requested by Charles Clancy. 761 */ 762 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 763 764 /* 765 * Juniper-private data link type, as per request from 766 * Hannes Gredler <hannes@juniper.net>. 767 * The DLT_ is used for internal communication with a 768 * integrated service module (ISM). 769 */ 770 #define DLT_JUNIPER_ISM 194 771 772 /* 773 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 774 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. 775 * For this one, we expect the FCS to be present at the end of the frame; 776 * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used. 777 */ 778 #define DLT_IEEE802_15_4 195 779 780 /* 781 * Various link-layer types, with a pseudo-header, for SITA 782 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). 783 */ 784 #define DLT_SITA 196 785 786 /* 787 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 788 * encapsulates Endace ERF records. Requested by Stephen Donnelly 789 * <stephen@endace.com>. 790 */ 791 #define DLT_ERF 197 792 793 /* 794 * Special header prepended to Ethernet packets when capturing from a 795 * u10 Networks board. Requested by Phil Mulholland 796 * <phil@u10networks.com>. 797 */ 798 #define DLT_RAIF1 198 799 800 /* 801 * IPMB packet for IPMI, beginning with the I2C slave address, followed 802 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 803 * <chanthy.toeung@ca.kontron.com>. 804 */ 805 #define DLT_IPMB 199 806 807 /* 808 * Juniper-private data link type, as per request from 809 * Hannes Gredler <hannes@juniper.net>. 810 * The DLT_ is used for capturing data on a secure tunnel interface. 811 */ 812 #define DLT_JUNIPER_ST 200 813 814 /* 815 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 816 * that includes direction information; requested by Paolo Abeni. 817 */ 818 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 819 820 /* 821 * AX.25 packet with a 1-byte KISS header; see 822 * 823 * http://www.ax25.net/kiss.htm 824 * 825 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>. 826 */ 827 #define DLT_AX25_KISS 202 828 829 /* 830 * LAPD packets from an ISDN channel, starting with the address field, 831 * with no pseudo-header. 832 * Requested by Varuna De Silva <varunax@gmail.com>. 833 */ 834 #define DLT_LAPD 203 835 836 /* 837 * Variants of various link-layer headers, with a one-byte direction 838 * pseudo-header prepended - zero means "received by this host", 839 * non-zero (any non-zero value) means "sent by this host" - as per 840 * Will Barker <w.barker@zen.co.uk>. 841 */ 842 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */ 843 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */ 844 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */ 845 #define DLT_LAPB_WITH_DIR 207 /* LAPB */ 846 847 /* 848 * 208 is reserved for an as-yet-unspecified proprietary link-layer 849 * type, as requested by Will Barker. 850 */ 851 852 /* 853 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 854 * <avn@pigeonpoint.com>. 855 */ 856 #define DLT_IPMB_LINUX 209 857 858 /* 859 * FlexRay automotive bus - http://www.flexray.com/ - as requested 860 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 861 */ 862 #define DLT_FLEXRAY 210 863 864 /* 865 * Media Oriented Systems Transport (MOST) bus for multimedia 866 * transport - http://www.mostcooperation.com/ - as requested 867 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 868 */ 869 #define DLT_MOST 211 870 871 /* 872 * Local Interconnect Network (LIN) bus for vehicle networks - 873 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 874 * <hannes.kaelber@x2e.de>. 875 */ 876 #define DLT_LIN 212 877 878 /* 879 * X2E-private data link type used for serial line capture, 880 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 881 */ 882 #define DLT_X2E_SERIAL 213 883 884 /* 885 * X2E-private data link type used for the Xoraya data logger 886 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 887 */ 888 #define DLT_X2E_XORAYA 214 889 890 /* 891 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 892 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 893 * of 0 as preamble, one octet of SFD, one octet of frame length+ 894 * reserved bit, and then the MAC-layer data, starting with the 895 * frame control field). 896 * 897 * Requested by Max Filippov <jcmvbkbc@gmail.com>. 898 */ 899 #define DLT_IEEE802_15_4_NONASK_PHY 215 900 901 /* 902 * David Gibson <david@gibson.dropbear.id.au> requested this for 903 * captures from the Linux kernel /dev/input/eventN devices. This 904 * is used to communicate keystrokes and mouse movements from the 905 * Linux kernel to display systems, such as Xorg. 906 */ 907 #define DLT_LINUX_EVDEV 216 908 909 /* 910 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 911 * 912 * Requested by Harald Welte <laforge@gnumonks.org>. 913 */ 914 #define DLT_GSMTAP_UM 217 915 #define DLT_GSMTAP_ABIS 218 916 917 /* 918 * MPLS, with an MPLS label as the link-layer header. 919 * Requested by Michele Marchetto <michele@openbsd.org> on behalf 920 * of OpenBSD. 921 */ 922 #define DLT_MPLS 219 923 924 /* 925 * USB packets, beginning with a Linux USB header, with the USB header 926 * padded to 64 bytes; required for memory-mapped access. 927 */ 928 #define DLT_USB_LINUX_MMAPPED 220 929 930 /* 931 * DECT packets, with a pseudo-header; requested by 932 * Matthias Wenzel <tcpdump@mazzoo.de>. 933 */ 934 #define DLT_DECT 221 935 936 /* 937 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov> 938 * Date: Mon, 11 May 2009 11:18:30 -0500 939 * 940 * DLT_AOS. We need it for AOS Space Data Link Protocol. 941 * I have already written dissectors for but need an OK from 942 * legal before I can submit a patch. 943 * 944 */ 945 #define DLT_AOS 222 946 947 /* 948 * Wireless HART (Highway Addressable Remote Transducer) 949 * From the HART Communication Foundation 950 * IES/PAS 62591 951 * 952 * Requested by Sam Roberts <vieuxtech@gmail.com>. 953 */ 954 #define DLT_WIHART 223 955 956 /* 957 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 958 * Requested by Kahou Lei <kahou82@gmail.com>. 959 */ 960 #define DLT_FC_2 224 961 962 /* 963 * Fibre Channel FC-2 frames, beginning with an encoding of the 964 * SOF, and ending with an encoding of the EOF. 965 * 966 * The encodings represent the frame delimiters as 4-byte sequences 967 * representing the corresponding ordered sets, with K28.5 968 * represented as 0xBC, and the D symbols as the corresponding 969 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 970 * is represented as 0xBC 0xB5 0x55 0x55. 971 * 972 * Requested by Kahou Lei <kahou82@gmail.com>. 973 */ 974 #define DLT_FC_2_WITH_FRAME_DELIMS 225 975 976 /* 977 * Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>. 978 * 979 * The pseudo-header starts with a one-byte version number; for version 2, 980 * the pseudo-header is: 981 * 982 * struct dl_ipnetinfo { 983 * u_int8_t dli_version; 984 * u_int8_t dli_family; 985 * u_int16_t dli_htype; 986 * u_int32_t dli_pktlen; 987 * u_int32_t dli_ifindex; 988 * u_int32_t dli_grifindex; 989 * u_int32_t dli_zsrc; 990 * u_int32_t dli_zdst; 991 * }; 992 * 993 * dli_version is 2 for the current version of the pseudo-header. 994 * 995 * dli_family is a Solaris address family value, so it's 2 for IPv4 996 * and 26 for IPv6. 997 * 998 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 999 * packets, and 2 for packets arriving from another zone on the same 1000 * machine. 1001 * 1002 * dli_pktlen is the length of the packet data following the pseudo-header 1003 * (so the captured length minus dli_pktlen is the length of the 1004 * pseudo-header, assuming the entire pseudo-header was captured). 1005 * 1006 * dli_ifindex is the interface index of the interface on which the 1007 * packet arrived. 1008 * 1009 * dli_grifindex is the group interface index number (for IPMP interfaces). 1010 * 1011 * dli_zsrc is the zone identifier for the source of the packet. 1012 * 1013 * dli_zdst is the zone identifier for the destination of the packet. 1014 * 1015 * A zone number of 0 is the global zone; a zone number of 0xffffffff 1016 * means that the packet arrived from another host on the network, not 1017 * from another zone on the same machine. 1018 * 1019 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 1020 * which of those it is. 1021 */ 1022 #define DLT_IPNET 226 1023 1024 /* 1025 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 1026 * by Linux SocketCAN. See Documentation/networking/can.txt in the Linux 1027 * source. 1028 * 1029 * Requested by Felix Obenhuber <felix@obenhuber.de>. 1030 */ 1031 #define DLT_CAN_SOCKETCAN 227 1032 1033 /* 1034 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 1035 * whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>. 1036 */ 1037 #define DLT_IPV4 228 1038 #define DLT_IPV6 229 1039 1040 /* 1041 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1042 * nothing), and with no FCS at the end of the frame; requested by 1043 * Jon Smirl <jonsmirl@gmail.com>. 1044 */ 1045 #define DLT_IEEE802_15_4_NOFCS 230 1046 1047 /* 1048 * Raw D-Bus: 1049 * 1050 * http://www.freedesktop.org/wiki/Software/dbus 1051 * 1052 * messages: 1053 * 1054 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 1055 * 1056 * starting with the endianness flag, followed by the message type, etc., 1057 * but without the authentication handshake before the message sequence: 1058 * 1059 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1060 * 1061 * Requested by Martin Vidner <martin@vidner.net>. 1062 */ 1063 #define DLT_DBUS 231 1064 1065 /* 1066 * Juniper-private data link type, as per request from 1067 * Hannes Gredler <hannes@juniper.net>. 1068 */ 1069 #define DLT_JUNIPER_VS 232 1070 #define DLT_JUNIPER_SRX_E2E 233 1071 #define DLT_JUNIPER_FIBRECHANNEL 234 1072 1073 /* 1074 * DVB-CI (DVB Common Interface for communication between a PC Card 1075 * module and a DVB receiver). See 1076 * 1077 * http://www.kaiser.cx/pcap-dvbci.html 1078 * 1079 * for the specification. 1080 * 1081 * Requested by Martin Kaiser <martin@kaiser.cx>. 1082 */ 1083 #define DLT_DVB_CI 235 1084 1085 /* 1086 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1087 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1088 * <hans-christoph.schemmel@cinterion.com>. 1089 */ 1090 #define DLT_MUX27010 236 1091 1092 /* 1093 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1094 * <barisdemiray@gmail.com>. 1095 */ 1096 #define DLT_STANAG_5066_D_PDU 237 1097 1098 /* 1099 * Juniper-private data link type, as per request from 1100 * Hannes Gredler <hannes@juniper.net>. 1101 */ 1102 #define DLT_JUNIPER_ATM_CEMIC 238 1103 1104 /* 1105 * NetFilter LOG messages 1106 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1107 * 1108 * Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl> 1109 */ 1110 #define DLT_NFLOG 239 1111 1112 /* 1113 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1114 * for Ethernet packets with a 4-byte pseudo-header and always 1115 * with the payload including the FCS, as supplied by their 1116 * netANALYZER hardware and software. 1117 * 1118 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1119 */ 1120 #define DLT_NETANALYZER 240 1121 1122 /* 1123 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1124 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1125 * with the Ethernet header preceded by 7 bytes of preamble and 1126 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1127 * software. 1128 * 1129 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1130 */ 1131 #define DLT_NETANALYZER_TRANSPARENT 241 1132 1133 /* 1134 * IP-over-InfiniBand, as specified by RFC 4391. 1135 * 1136 * Requested by Petr Sumbera <petr.sumbera@oracle.com>. 1137 */ 1138 #define DLT_IPOIB 242 1139 1140 /* 1141 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0). 1142 * 1143 * Requested by Guy Martin <gmsoft@tuxicoman.be>. 1144 */ 1145 #define DLT_MPEG_2_TS 243 1146 1147 /* 1148 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as 1149 * used by their ng40 protocol tester. 1150 * 1151 * Requested by Jens Grimmer <jens.grimmer@ng4t.com>. 1152 */ 1153 #define DLT_NG40 244 1154 1155 /* 1156 * Pseudo-header giving adapter number and flags, followed by an NFC 1157 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU, 1158 * as specified by NFC Forum Logical Link Control Protocol Technical 1159 * Specification LLCP 1.1. 1160 * 1161 * Requested by Mike Wakerly <mikey@google.com>. 1162 */ 1163 #define DLT_NFC_LLCP 245 1164 1165 /* 1166 * 245 is used as LINKTYPE_PFSYNC; do not use it for any other purpose. 1167 * 1168 * DLT_PFSYNC has different values on different platforms, and all of 1169 * them collide with something used elsewhere. On platforms that 1170 * don't already define it, define it as 245. 1171 */ 1172 #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__) 1173 #define DLT_PFSYNC 246 1174 #endif 1175 1176 /* 1177 * Raw InfiniBand packets, starting with the Local Routing Header. 1178 * 1179 * Requested by Oren Kladnitsky <orenk@mellanox.com>. 1180 */ 1181 #define DLT_INFINIBAND 247 1182 1183 /* 1184 * SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6). 1185 * 1186 * Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>. 1187 */ 1188 #define DLT_SCTP 248 1189 1190 /* 1191 * USB packets, beginning with a USBPcap header. 1192 * 1193 * Requested by Tomasz Mon <desowin@gmail.com> 1194 */ 1195 #define DLT_USBPCAP 249 1196 1197 /* 1198 * Schweitzer Engineering Laboratories "RTAC" product serial-line 1199 * packets. 1200 * 1201 * Requested by Chris Bontje <chris_bontje@selinc.com>. 1202 */ 1203 #define DLT_RTAC_SERIAL 250 1204 1205 /* 1206 * Bluetooth Low Energy air interface link-layer packets. 1207 * 1208 * Requested by Mike Kershaw <dragorn@kismetwireless.net>. 1209 */ 1210 #define DLT_BLUETOOTH_LE_LL 251 1211 1212 /* 1213 * DLT type for upper-protocol layer PDU saves from wireshark. 1214 * 1215 * the actual contents are determined by two TAGs stored with each 1216 * packet: 1217 * EXP_PDU_TAG_LINKTYPE the link type (LINKTYPE_ value) of the 1218 * original packet. 1219 * 1220 * EXP_PDU_TAG_PROTO_NAME the name of the wireshark dissector 1221 * that can make sense of the data stored. 1222 */ 1223 #define DLT_WIRESHARK_UPPER_PDU 252 1224 1225 /* 1226 * DLT type for the netlink protocol (nlmon devices). 1227 */ 1228 #define DLT_NETLINK 253 1229 1230 /* 1231 * Bluetooth Linux Monitor headers for the BlueZ stack. 1232 */ 1233 #define DLT_BLUETOOTH_LINUX_MONITOR 254 1234 1235 /* 1236 * Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as 1237 * captured by Ubertooth. 1238 */ 1239 #define DLT_BLUETOOTH_BREDR_BB 255 1240 1241 /* 1242 * Bluetooth Low Energy link layer packets, as captured by Ubertooth. 1243 */ 1244 #define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256 1245 1246 /* 1247 * PROFIBUS data link layer. 1248 */ 1249 #define DLT_PROFIBUS_DL 257 1250 1251 /* 1252 * Apple's DLT_PKTAP headers. 1253 * 1254 * Sadly, the folks at Apple either had no clue that the DLT_USERn values 1255 * are for internal use within an organization and partners only, and 1256 * didn't know that the right way to get a link-layer header type is to 1257 * ask tcpdump.org for one, or knew and didn't care, so they just 1258 * used DLT_USER2, which causes problems for everything except for 1259 * their version of tcpdump. 1260 * 1261 * So I'll just give them one; hopefully this will show up in a 1262 * libpcap release in time for them to get this into 10.10 Big Sur 1263 * or whatever Mavericks' successor is called. LINKTYPE_PKTAP 1264 * will be 258 *even on OS X*; that is *intentional*, so that 1265 * PKTAP files look the same on *all* OSes (different OSes can have 1266 * different numerical values for a given DLT_, but *MUST NOT* have 1267 * different values for what goes in a file, as files can be moved 1268 * between OSes!). 1269 * 1270 * When capturing, on a system with a Darwin-based OS, on a device 1271 * that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this 1272 * version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP, 1273 * and that will continue to be DLT_USER2 on Darwin-based OSes. That way, 1274 * binary compatibility with Mavericks is preserved for programs using 1275 * this version of libpcap. This does mean that if you were using 1276 * DLT_USER2 for some capture device on OS X, you can't do so with 1277 * this version of libpcap, just as you can't with Apple's libpcap - 1278 * on OS X, they define DLT_PKTAP to be DLT_USER2, so programs won't 1279 * be able to distinguish between PKTAP and whatever you were using 1280 * DLT_USER2 for. 1281 * 1282 * If the program saves the capture to a file using this version of 1283 * libpcap's pcap_dump code, the LINKTYPE_ value in the file will be 1284 * LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes. 1285 * That way, the file will *not* be a DLT_USER2 file. That means 1286 * that the latest version of tcpdump, when built with this version 1287 * of libpcap, and sufficiently recent versions of Wireshark will 1288 * be able to read those files and interpret them correctly; however, 1289 * Apple's version of tcpdump in OS X 10.9 won't be able to handle 1290 * them. (Hopefully, Apple will pick up this version of libpcap, 1291 * and the corresponding version of tcpdump, so that tcpdump will 1292 * be able to handle the old LINKTYPE_USER2 captures *and* the new 1293 * LINKTYPE_PKTAP captures.) 1294 */ 1295 #ifdef __APPLE__ 1296 #define DLT_PKTAP DLT_USER2 1297 #else 1298 #define DLT_PKTAP 258 1299 #endif 1300 1301 /* 1302 * Ethernet packets preceded by a header giving the last 6 octets 1303 * of the preamble specified by 802.3-2012 Clause 65, section 1304 * 65.1.3.2 "Transmit". 1305 */ 1306 #define DLT_EPON 259 1307 1308 /* 1309 * IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format" 1310 * in the PICMG HPM.2 specification. 1311 */ 1312 #define DLT_IPMI_HPM_2 260 1313 1314 #define DLT_MATCHING_MAX 260 /* highest value in the "matching" range */ 1315 1316 /* 1317 * DLT and savefile link type values are split into a class and 1318 * a member of that class. A class value of 0 indicates a regular 1319 * DLT_/LINKTYPE_ value. 1320 */ 1321 #define DLT_CLASS(x) ((x) & 0x03ff0000) 1322 1323 /* 1324 * NetBSD-specific generic "raw" link type. The class value indicates 1325 * that this is the generic raw type, and the lower 16 bits are the 1326 * address family we're dealing with. Those values are NetBSD-specific; 1327 * do not assume that they correspond to AF_ values for your operating 1328 * system. 1329 */ 1330 #define DLT_CLASS_NETBSD_RAWAF 0x02240000 1331 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af)) 1332 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff) 1333 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF) 1334 1335 1336 /* 1337 * The instruction encodings. 1338 * 1339 * Please inform tcpdump-workers@lists.tcpdump.org if you use any 1340 * of the reserved values, so that we can note that they're used 1341 * (and perhaps implement it in the reference BPF implementation 1342 * and encourage its implementation elsewhere). 1343 */ 1344 1345 /* 1346 * The upper 8 bits of the opcode aren't used. BSD/OS used 0x8000. 1347 */ 1348 1349 /* instruction classes */ 1350 #define BPF_CLASS(code) ((code) & 0x07) 1351 #define BPF_LD 0x00 1352 #define BPF_LDX 0x01 1353 #define BPF_ST 0x02 1354 #define BPF_STX 0x03 1355 #define BPF_ALU 0x04 1356 #define BPF_JMP 0x05 1357 #define BPF_RET 0x06 1358 #define BPF_MISC 0x07 1359 1360 /* ld/ldx fields */ 1361 #define BPF_SIZE(code) ((code) & 0x18) 1362 #define BPF_W 0x00 1363 #define BPF_H 0x08 1364 #define BPF_B 0x10 1365 /* 0x18 reserved; used by BSD/OS */ 1366 #define BPF_MODE(code) ((code) & 0xe0) 1367 #define BPF_IMM 0x00 1368 #define BPF_ABS 0x20 1369 #define BPF_IND 0x40 1370 #define BPF_MEM 0x60 1371 #define BPF_LEN 0x80 1372 #define BPF_MSH 0xa0 1373 /* 0xc0 reserved; used by BSD/OS */ 1374 /* 0xe0 reserved; used by BSD/OS */ 1375 1376 /* alu/jmp fields */ 1377 #define BPF_OP(code) ((code) & 0xf0) 1378 #define BPF_ADD 0x00 1379 #define BPF_SUB 0x10 1380 #define BPF_MUL 0x20 1381 #define BPF_DIV 0x30 1382 #define BPF_OR 0x40 1383 #define BPF_AND 0x50 1384 #define BPF_LSH 0x60 1385 #define BPF_RSH 0x70 1386 #define BPF_NEG 0x80 1387 #define BPF_MOD 0x90 1388 #define BPF_XOR 0xa0 1389 /* 0xb0 reserved */ 1390 /* 0xc0 reserved */ 1391 /* 0xd0 reserved */ 1392 /* 0xe0 reserved */ 1393 /* 0xf0 reserved */ 1394 1395 #define BPF_JA 0x00 1396 #define BPF_JEQ 0x10 1397 #define BPF_JGT 0x20 1398 #define BPF_JGE 0x30 1399 #define BPF_JSET 0x40 1400 /* 0x50 reserved; used on BSD/OS */ 1401 /* 0x60 reserved */ 1402 /* 0x70 reserved */ 1403 /* 0x80 reserved */ 1404 /* 0x90 reserved */ 1405 /* 0xa0 reserved */ 1406 /* 0xb0 reserved */ 1407 /* 0xc0 reserved */ 1408 /* 0xd0 reserved */ 1409 /* 0xe0 reserved */ 1410 /* 0xf0 reserved */ 1411 #define BPF_SRC(code) ((code) & 0x08) 1412 #define BPF_K 0x00 1413 #define BPF_X 0x08 1414 1415 /* ret - BPF_K and BPF_X also apply */ 1416 #define BPF_RVAL(code) ((code) & 0x18) 1417 #define BPF_A 0x10 1418 /* 0x18 reserved */ 1419 1420 /* misc */ 1421 #define BPF_MISCOP(code) ((code) & 0xf8) 1422 #define BPF_TAX 0x00 1423 /* 0x08 reserved */ 1424 /* 0x10 reserved */ 1425 /* 0x18 reserved */ 1426 /* #define BPF_COP 0x20 NetBSD "coprocessor" extensions */ 1427 /* 0x28 reserved */ 1428 /* 0x30 reserved */ 1429 /* 0x38 reserved */ 1430 /* #define BPF_COPX 0x40 NetBSD "coprocessor" extensions */ 1431 /* also used on BSD/OS */ 1432 /* 0x48 reserved */ 1433 /* 0x50 reserved */ 1434 /* 0x58 reserved */ 1435 /* 0x60 reserved */ 1436 /* 0x68 reserved */ 1437 /* 0x70 reserved */ 1438 /* 0x78 reserved */ 1439 #define BPF_TXA 0x80 1440 /* 0x88 reserved */ 1441 /* 0x90 reserved */ 1442 /* 0x98 reserved */ 1443 /* 0xa0 reserved */ 1444 /* 0xa8 reserved */ 1445 /* 0xb0 reserved */ 1446 /* 0xb8 reserved */ 1447 /* 0xc0 reserved; used on BSD/OS */ 1448 /* 0xc8 reserved */ 1449 /* 0xd0 reserved */ 1450 /* 0xd8 reserved */ 1451 /* 0xe0 reserved */ 1452 /* 0xe8 reserved */ 1453 /* 0xf0 reserved */ 1454 /* 0xf8 reserved */ 1455 1456 /* 1457 * The instruction data structure. 1458 */ 1459 struct bpf_insn { 1460 u_short code; 1461 u_char jt; 1462 u_char jf; 1463 bpf_u_int32 k; 1464 }; 1465 1466 /* 1467 * Macros for insn array initializers. 1468 */ 1469 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } 1470 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } 1471 1472 #if __STDC__ || defined(__cplusplus) 1473 extern int bpf_validate(const struct bpf_insn *, int); 1474 extern u_int bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int); 1475 #else 1476 extern int bpf_validate(); 1477 extern u_int bpf_filter(); 1478 #endif 1479 1480 /* 1481 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 1482 */ 1483 #define BPF_MEMWORDS 16 1484 1485 #ifdef __cplusplus 1486 } 1487 #endif 1488 1489 #endif /* !defined(_NET_BPF_H_) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) */ 1490