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 * @(#) $Header: /tcpdump/master/libpcap/pcap/bpf.h,v 1.32 2008-12-23 20:13:29 guy Exp $ (LBL) 41 */ 42 43 /* 44 * This is libpcap's cut-down version of bpf.h; it includes only 45 * the stuff needed for the code generator and the userland BPF 46 * interpreter, and the libpcap APIs for setting filters, etc.. 47 * 48 * "pcap-bpf.c" will include the native OS version, as it deals with 49 * the OS's BPF implementation. 50 * 51 * At least two programs found by Google Code Search explicitly includes 52 * <pcap/bpf.h> (even though <pcap.h>/<pcap/pcap.h> includes it for you), 53 * so moving that stuff to <pcap/pcap.h> would break the build for some 54 * programs. 55 */ 56 57 /* 58 * If we've already included <net/bpf.h>, don't re-define this stuff. 59 * We assume BSD-style multiple-include protection in <net/bpf.h>, 60 * which is true of all but the oldest versions of FreeBSD and NetBSD, 61 * or Tru64 UNIX-style multiple-include protection (or, at least, 62 * Tru64 UNIX 5.x-style; I don't have earlier versions available to check), 63 * or AIX-style multiple-include protection (or, at least, AIX 5.x-style; 64 * I don't have earlier versions available to check). 65 * 66 * We do not check for BPF_MAJOR_VERSION, as that's defined by 67 * <linux/filter.h>, which is directly or indirectly included in some 68 * programs that also include pcap.h, and <linux/filter.h> doesn't 69 * define stuff we need. 70 * 71 * This also provides our own multiple-include protection. 72 */ 73 #if !defined(_NET_BPF_H_) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) 74 #define lib_pcap_bpf_h 75 76 #ifdef __cplusplus 77 extern "C" { 78 #endif 79 80 /* BSD style release date */ 81 #define BPF_RELEASE 199606 82 83 #ifdef MSDOS /* must be 32-bit */ 84 typedef long bpf_int32; 85 typedef unsigned long bpf_u_int32; 86 #else 87 typedef int bpf_int32; 88 typedef u_int bpf_u_int32; 89 #endif 90 91 /* 92 * Alignment macros. BPF_WORDALIGN rounds up to the next 93 * even multiple of BPF_ALIGNMENT. 94 * 95 * Tcpdump's print-pflog.c uses this, so we define it here. 96 */ 97 #ifndef __NetBSD__ 98 #define BPF_ALIGNMENT sizeof(bpf_int32) 99 #else 100 #define BPF_ALIGNMENT sizeof(long) 101 #endif 102 #define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1)) 103 104 /* 105 * Structure for "pcap_compile()", "pcap_setfilter()", etc.. 106 */ 107 struct bpf_program { 108 u_int bf_len; 109 struct bpf_insn *bf_insns; 110 }; 111 112 /* 113 * Link-layer header type codes. 114 * 115 * Do *NOT* add new values to this list without asking 116 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run 117 * the risk of using a value that's already being used for some other 118 * purpose, and of having tools that read libpcap-format captures not 119 * being able to handle captures with your new DLT_ value, with no hope 120 * that they will ever be changed to do so (as that would destroy their 121 * ability to read captures using that value for that other purpose). 122 * 123 * See 124 * 125 * http://www.tcpdump.org/linktypes.html 126 * 127 * for detailed descriptions of some of these link-layer header types. 128 */ 129 130 /* 131 * These are the types that are the same on all platforms, and that 132 * have been defined by <net/bpf.h> for ages. 133 */ 134 #define DLT_NULL 0 /* BSD loopback encapsulation */ 135 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 136 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 137 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 138 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 139 #define DLT_CHAOS 5 /* Chaos */ 140 #define DLT_IEEE802 6 /* 802.5 Token Ring */ 141 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ 142 #define DLT_SLIP 8 /* Serial Line IP */ 143 #define DLT_PPP 9 /* Point-to-point Protocol */ 144 #define DLT_FDDI 10 /* FDDI */ 145 146 /* 147 * These are types that are different on some platforms, and that 148 * have been defined by <net/bpf.h> for ages. We use #ifdefs to 149 * detect the BSDs that define them differently from the traditional 150 * libpcap <net/bpf.h> 151 * 152 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, 153 * but I don't know what the right #define is for BSD/OS. 154 */ 155 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ 156 157 #ifdef __OpenBSD__ 158 #define DLT_RAW 14 /* raw IP */ 159 #else 160 #define DLT_RAW 12 /* raw IP */ 161 #endif 162 163 /* 164 * Given that the only OS that currently generates BSD/OS SLIP or PPP 165 * is, well, BSD/OS, arguably everybody should have chosen its values 166 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they 167 * didn't. So it goes. 168 */ 169 #if defined(__NetBSD__) || defined(__FreeBSD__) 170 #ifndef DLT_SLIP_BSDOS 171 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ 172 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ 173 #endif 174 #else 175 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 176 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 177 #endif 178 179 /* 180 * 17 is used for DLT_OLD_PFLOG in OpenBSD; 181 * OBSOLETE: DLT_PFLOG is 117 in OpenBSD now as well. See below. 182 * 18 is used for DLT_PFSYNC in OpenBSD; don't use it for anything else. 183 */ 184 185 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 186 187 /* 188 * Apparently Redback uses this for its SmartEdge 400/800. I hope 189 * nobody else decided to use it, too. 190 */ 191 #define DLT_REDBACK_SMARTEDGE 32 192 193 /* 194 * These values are defined by NetBSD; other platforms should refrain from 195 * using them for other purposes, so that NetBSD savefiles with link 196 * types of 50 or 51 can be read as this type on all platforms. 197 */ 198 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 199 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 200 201 /* 202 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 203 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 204 * header has 6 bytes of unknown data, something that appears to be an 205 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 206 * I've seen. 207 */ 208 #define DLT_SYMANTEC_FIREWALL 99 209 210 /* 211 * Values between 100 and 103 are used in capture file headers as 212 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 213 * that differ between platforms; don't use those values for new DLT_ 214 * new types. 215 */ 216 217 /* 218 * Values starting with 104 are used for newly-assigned link-layer 219 * header type values; for those link-layer header types, the DLT_ 220 * value returned by pcap_datalink() and passed to pcap_open_dead(), 221 * and the LINKTYPE_ value that appears in capture files, are the 222 * same. 223 * 224 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 225 * the highest such value. 226 */ 227 #define DLT_MATCHING_MIN 104 228 229 /* 230 * This value was defined by libpcap 0.5; platforms that have defined 231 * it with a different value should define it here with that value - 232 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 233 * whatever value that happens to be, so programs will correctly 234 * handle files with that link type regardless of the value of 235 * DLT_C_HDLC. 236 * 237 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 238 * compatibility with programs written for BSD/OS. 239 * 240 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 241 * for source compatibility with programs written for libpcap 0.5. 242 */ 243 #define DLT_C_HDLC 104 /* Cisco HDLC */ 244 #define DLT_CHDLC DLT_C_HDLC 245 246 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 247 248 /* 249 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, 250 * except when it isn't. (I.e., sometimes it's just raw IP, and 251 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, 252 * so that we don't have to worry about the link-layer header.) 253 */ 254 255 /* 256 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 257 * with other values. 258 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 259 * (DLCI, etc.). 260 */ 261 #define DLT_FRELAY 107 262 263 /* 264 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 265 * that the AF_ type in the link-layer header is in network byte order. 266 * 267 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so 268 * we don't use 12 for it in OSes other than OpenBSD. 269 */ 270 #ifdef __OpenBSD__ 271 #define DLT_LOOP 12 272 #else 273 #define DLT_LOOP 108 274 #endif 275 276 /* 277 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 278 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 279 * than OpenBSD. 280 */ 281 #ifdef __OpenBSD__ 282 #define DLT_ENC 13 283 #else 284 #define DLT_ENC 109 285 #endif 286 287 /* 288 * Values between 110 and 112 are reserved for use in capture file headers 289 * as link-layer types corresponding to DLT_ types that might differ 290 * between platforms; don't use those values for new DLT_ types 291 * other than the corresponding DLT_ types. 292 */ 293 294 /* 295 * This is for Linux cooked sockets. 296 */ 297 #define DLT_LINUX_SLL 113 298 299 /* 300 * Apple LocalTalk hardware. 301 */ 302 #define DLT_LTALK 114 303 304 /* 305 * Acorn Econet. 306 */ 307 #define DLT_ECONET 115 308 309 /* 310 * Reserved for use with OpenBSD ipfilter. 311 */ 312 #define DLT_IPFILTER 116 313 314 /* 315 * OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD, but that's DLT_LANE8023 316 * in SuSE 6.3, so we can't use 17 for it in capture-file headers. 317 * 318 * XXX: is there a conflict with DLT_PFSYNC 18 as well? 319 */ 320 #ifdef __OpenBSD__ 321 #define DLT_OLD_PFLOG 17 322 #define DLT_PFSYNC 18 323 #endif 324 #define DLT_PFLOG 117 325 326 /* 327 * Registered for Cisco-internal use. 328 */ 329 #define DLT_CISCO_IOS 118 330 331 /* 332 * For 802.11 cards using the Prism II chips, with a link-layer 333 * header including Prism monitor mode information plus an 802.11 334 * header. 335 */ 336 #define DLT_PRISM_HEADER 119 337 338 /* 339 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 340 * (see Doug Ambrisko's FreeBSD patches). 341 */ 342 #define DLT_AIRONET_HEADER 120 343 344 /* 345 * Reserved for Siemens HiPath HDLC. 346 */ 347 #define DLT_HHDLC 121 348 349 /* 350 * This is for RFC 2625 IP-over-Fibre Channel. 351 * 352 * This is not for use with raw Fibre Channel, where the link-layer 353 * header starts with a Fibre Channel frame header; it's for IP-over-FC, 354 * where the link-layer header starts with an RFC 2625 Network_Header 355 * field. 356 */ 357 #define DLT_IP_OVER_FC 122 358 359 /* 360 * This is for Full Frontal ATM on Solaris with SunATM, with a 361 * pseudo-header followed by an AALn PDU. 362 * 363 * There may be other forms of Full Frontal ATM on other OSes, 364 * with different pseudo-headers. 365 * 366 * If ATM software returns a pseudo-header with VPI/VCI information 367 * (and, ideally, packet type information, e.g. signalling, ILMI, 368 * LANE, LLC-multiplexed traffic, etc.), it should not use 369 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump 370 * and the like don't have to infer the presence or absence of a 371 * pseudo-header and the form of the pseudo-header. 372 */ 373 #define DLT_SUNATM 123 /* Solaris+SunATM */ 374 375 /* 376 * Reserved as per request from Kent Dahlgren <kent@praesum.com> 377 * for private use. 378 */ 379 #define DLT_RIO 124 /* RapidIO */ 380 #define DLT_PCI_EXP 125 /* PCI Express */ 381 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 382 383 /* 384 * Header for 802.11 plus a number of bits of link-layer information 385 * including radio information, used by some recent BSD drivers as 386 * well as the madwifi Atheros driver for Linux. 387 */ 388 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ 389 390 /* 391 * Reserved for the TZSP encapsulation, as per request from 392 * Chris Waters <chris.waters@networkchemistry.com> 393 * TZSP is a generic encapsulation for any other link type, 394 * which includes a means to include meta-information 395 * with the packet, e.g. signal strength and channel 396 * for 802.11 packets. 397 */ 398 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 399 400 /* 401 * BSD's ARCNET headers have the source host, destination host, 402 * and type at the beginning of the packet; that's what's handed 403 * up to userland via BPF. 404 * 405 * Linux's ARCNET headers, however, have a 2-byte offset field 406 * between the host IDs and the type; that's what's handed up 407 * to userland via PF_PACKET sockets. 408 * 409 * We therefore have to have separate DLT_ values for them. 410 */ 411 #define DLT_ARCNET_LINUX 129 /* ARCNET */ 412 413 /* 414 * Juniper-private data link types, as per request from 415 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 416 * for passing on chassis-internal metainformation such as 417 * QOS profiles, etc.. 418 */ 419 #define DLT_JUNIPER_MLPPP 130 420 #define DLT_JUNIPER_MLFR 131 421 #define DLT_JUNIPER_ES 132 422 #define DLT_JUNIPER_GGSN 133 423 #define DLT_JUNIPER_MFR 134 424 #define DLT_JUNIPER_ATM2 135 425 #define DLT_JUNIPER_SERVICES 136 426 #define DLT_JUNIPER_ATM1 137 427 428 /* 429 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 430 * <dieter@apple.com>. The header that's presented is an Ethernet-like 431 * header: 432 * 433 * #define FIREWIRE_EUI64_LEN 8 434 * struct firewire_header { 435 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 436 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 437 * u_short firewire_type; 438 * }; 439 * 440 * with "firewire_type" being an Ethernet type value, rather than, 441 * for example, raw GASP frames being handed up. 442 */ 443 #define DLT_APPLE_IP_OVER_IEEE1394 138 444 445 /* 446 * Various SS7 encapsulations, as per a request from Jeff Morriss 447 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 448 */ 449 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 450 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 451 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 452 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 453 454 /* 455 * DOCSIS MAC frames. 456 */ 457 #define DLT_DOCSIS 143 458 459 /* 460 * Linux-IrDA packets. Protocol defined at http://www.irda.org. 461 * Those packets include IrLAP headers and above (IrLMP...), but 462 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy 463 * framing can be handled by the hardware and depend on the bitrate. 464 * This is exactly the format you would get capturing on a Linux-IrDA 465 * interface (irdaX), but not on a raw serial port. 466 * Note the capture is done in "Linux-cooked" mode, so each packet include 467 * a fake packet header (struct sll_header). This is because IrDA packet 468 * decoding is dependant on the direction of the packet (incomming or 469 * outgoing). 470 * When/if other platform implement IrDA capture, we may revisit the 471 * issue and define a real DLT_IRDA... 472 * Jean II 473 */ 474 #define DLT_LINUX_IRDA 144 475 476 /* 477 * Reserved for IBM SP switch and IBM Next Federation switch. 478 */ 479 #define DLT_IBM_SP 145 480 #define DLT_IBM_SN 146 481 482 /* 483 * Reserved for private use. If you have some link-layer header type 484 * that you want to use within your organization, with the capture files 485 * using that link-layer header type not ever be sent outside your 486 * organization, you can use these values. 487 * 488 * No libpcap release will use these for any purpose, nor will any 489 * tcpdump release use them, either. 490 * 491 * Do *NOT* use these in capture files that you expect anybody not using 492 * your private versions of capture-file-reading tools to read; in 493 * particular, do *NOT* use them in products, otherwise you may find that 494 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 495 * read capture files from your firewall/intrusion detection/traffic 496 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 497 * and you may also find that the developers of those applications will 498 * not accept patches to let them read those files. 499 * 500 * Also, do not use them if somebody might send you a capture using them 501 * for *their* private type and tools using them for *your* private type 502 * would have to read them. 503 * 504 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value, 505 * as per the comment above, and use the type you're given. 506 */ 507 #define DLT_USER0 147 508 #define DLT_USER1 148 509 #define DLT_USER2 149 510 #define DLT_USER3 150 511 #define DLT_USER4 151 512 #define DLT_USER5 152 513 #define DLT_USER6 153 514 #define DLT_USER7 154 515 #define DLT_USER8 155 516 #define DLT_USER9 156 517 #define DLT_USER10 157 518 #define DLT_USER11 158 519 #define DLT_USER12 159 520 #define DLT_USER13 160 521 #define DLT_USER14 161 522 #define DLT_USER15 162 523 524 /* 525 * For future use with 802.11 captures - defined by AbsoluteValue 526 * Systems to store a number of bits of link-layer information 527 * including radio information: 528 * 529 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 530 * 531 * but it might be used by some non-AVS drivers now or in the 532 * future. 533 */ 534 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 535 536 /* 537 * Juniper-private data link type, as per request from 538 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 539 * for passing on chassis-internal metainformation such as 540 * QOS profiles, etc.. 541 */ 542 #define DLT_JUNIPER_MONITOR 164 543 544 /* 545 * Reserved for BACnet MS/TP. 546 */ 547 #define DLT_BACNET_MS_TP 165 548 549 /* 550 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. 551 * 552 * This is used in some OSes to allow a kernel socket filter to distinguish 553 * between incoming and outgoing packets, on a socket intended to 554 * supply pppd with outgoing packets so it can do dial-on-demand and 555 * hangup-on-lack-of-demand; incoming packets are filtered out so they 556 * don't cause pppd to hold the connection up (you don't want random 557 * input packets such as port scans, packets from old lost connections, 558 * etc. to force the connection to stay up). 559 * 560 * The first byte of the PPP header (0xff03) is modified to accomodate 561 * the direction - 0x00 = IN, 0x01 = OUT. 562 */ 563 #define DLT_PPP_PPPD 166 564 565 /* 566 * Names for backwards compatibility with older versions of some PPP 567 * software; new software should use DLT_PPP_PPPD. 568 */ 569 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 570 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 571 572 /* 573 * Juniper-private data link type, as per request from 574 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 575 * for passing on chassis-internal metainformation such as 576 * QOS profiles, cookies, etc.. 577 */ 578 #define DLT_JUNIPER_PPPOE 167 579 #define DLT_JUNIPER_PPPOE_ATM 168 580 581 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 582 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 583 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 584 585 /* 586 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line 587 * monitoring equipment. 588 */ 589 #define DLT_GCOM_T1E1 172 590 #define DLT_GCOM_SERIAL 173 591 592 /* 593 * Juniper-private data link type, as per request from 594 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used 595 * for internal communication to Physical Interface Cards (PIC) 596 */ 597 #define DLT_JUNIPER_PIC_PEER 174 598 599 /* 600 * Link types requested by Gregor Maier <gregor@endace.com> of Endace 601 * Measurement Systems. They add an ERF header (see 602 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 603 * the link-layer header. 604 */ 605 #define DLT_ERF_ETH 175 /* Ethernet */ 606 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 607 608 /* 609 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD 610 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 611 * includes additional information before the LAPD header, so it's 612 * not necessarily a generic LAPD header. 613 */ 614 #define DLT_LINUX_LAPD 177 615 616 /* 617 * Juniper-private data link type, as per request from 618 * Hannes Gredler <hannes@juniper.net>. 619 * The DLT_ are used for prepending meta-information 620 * like interface index, interface name 621 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 622 */ 623 #define DLT_JUNIPER_ETHER 178 624 #define DLT_JUNIPER_PPP 179 625 #define DLT_JUNIPER_FRELAY 180 626 #define DLT_JUNIPER_CHDLC 181 627 628 /* 629 * Multi Link Frame Relay (FRF.16) 630 */ 631 #define DLT_MFR 182 632 633 /* 634 * Juniper-private data link type, as per request from 635 * Hannes Gredler <hannes@juniper.net>. 636 * The DLT_ is used for internal communication with a 637 * voice Adapter Card (PIC) 638 */ 639 #define DLT_JUNIPER_VP 183 640 641 /* 642 * Arinc 429 frames. 643 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 644 * Every frame contains a 32bit A429 label. 645 * More documentation on Arinc 429 can be found at 646 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 647 */ 648 #define DLT_A429 184 649 650 /* 651 * Arinc 653 Interpartition Communication messages. 652 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 653 * Please refer to the A653-1 standard for more information. 654 */ 655 #define DLT_A653_ICM 185 656 657 /* 658 * USB packets, beginning with a USB setup header; requested by 659 * Paolo Abeni <paolo.abeni@email.it>. 660 */ 661 #define DLT_USB 186 662 663 /* 664 * Bluetooth HCI UART transport layer (part H:4); requested by 665 * Paolo Abeni. 666 */ 667 #define DLT_BLUETOOTH_HCI_H4 187 668 669 /* 670 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 671 * <cruz_petagay@bah.com>. 672 */ 673 #define DLT_IEEE802_16_MAC_CPS 188 674 675 /* 676 * USB packets, beginning with a Linux USB header; requested by 677 * Paolo Abeni <paolo.abeni@email.it>. 678 */ 679 #define DLT_USB_LINUX 189 680 681 /* 682 * Controller Area Network (CAN) v. 2.0B packets. 683 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 684 * Used to dump CAN packets coming from a CAN Vector board. 685 * More documentation on the CAN v2.0B frames can be found at 686 * http://www.can-cia.org/downloads/?269 687 */ 688 #define DLT_CAN20B 190 689 690 /* 691 * IEEE 802.15.4, with address fields padded, as is done by Linux 692 * drivers; requested by Juergen Schimmer. 693 */ 694 #define DLT_IEEE802_15_4_LINUX 191 695 696 /* 697 * Per Packet Information encapsulated packets. 698 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 699 */ 700 #define DLT_PPI 192 701 702 /* 703 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 704 * requested by Charles Clancy. 705 */ 706 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 707 708 /* 709 * Juniper-private data link type, as per request from 710 * Hannes Gredler <hannes@juniper.net>. 711 * The DLT_ is used for internal communication with a 712 * integrated service module (ISM). 713 */ 714 #define DLT_JUNIPER_ISM 194 715 716 /* 717 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 718 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. 719 * For this one, we expect the FCS to be present at the end of the frame; 720 * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used. 721 */ 722 #define DLT_IEEE802_15_4 195 723 724 /* 725 * Various link-layer types, with a pseudo-header, for SITA 726 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). 727 */ 728 #define DLT_SITA 196 729 730 /* 731 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 732 * encapsulates Endace ERF records. Requested by Stephen Donnelly 733 * <stephen@endace.com>. 734 */ 735 #define DLT_ERF 197 736 737 /* 738 * Special header prepended to Ethernet packets when capturing from a 739 * u10 Networks board. Requested by Phil Mulholland 740 * <phil@u10networks.com>. 741 */ 742 #define DLT_RAIF1 198 743 744 /* 745 * IPMB packet for IPMI, beginning with the I2C slave address, followed 746 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 747 * <chanthy.toeung@ca.kontron.com>. 748 */ 749 #define DLT_IPMB 199 750 751 /* 752 * Juniper-private data link type, as per request from 753 * Hannes Gredler <hannes@juniper.net>. 754 * The DLT_ is used for capturing data on a secure tunnel interface. 755 */ 756 #define DLT_JUNIPER_ST 200 757 758 /* 759 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 760 * that includes direction information; requested by Paolo Abeni. 761 */ 762 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 763 764 /* 765 * AX.25 packet with a 1-byte KISS header; see 766 * 767 * http://www.ax25.net/kiss.htm 768 * 769 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>. 770 */ 771 #define DLT_AX25_KISS 202 772 773 /* 774 * LAPD packets from an ISDN channel, starting with the address field, 775 * with no pseudo-header. 776 * Requested by Varuna De Silva <varunax@gmail.com>. 777 */ 778 #define DLT_LAPD 203 779 780 /* 781 * Variants of various link-layer headers, with a one-byte direction 782 * pseudo-header prepended - zero means "received by this host", 783 * non-zero (any non-zero value) means "sent by this host" - as per 784 * Will Barker <w.barker@zen.co.uk>. 785 */ 786 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */ 787 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */ 788 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */ 789 #define DLT_LAPB_WITH_DIR 207 /* LAPB */ 790 791 /* 792 * 208 is reserved for an as-yet-unspecified proprietary link-layer 793 * type, as requested by Will Barker. 794 */ 795 796 /* 797 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 798 * <avn@pigeonpoint.com>. 799 */ 800 #define DLT_IPMB_LINUX 209 801 802 /* 803 * FlexRay automotive bus - http://www.flexray.com/ - as requested 804 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 805 */ 806 #define DLT_FLEXRAY 210 807 808 /* 809 * Media Oriented Systems Transport (MOST) bus for multimedia 810 * transport - http://www.mostcooperation.com/ - as requested 811 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 812 */ 813 #define DLT_MOST 211 814 815 /* 816 * Local Interconnect Network (LIN) bus for vehicle networks - 817 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 818 * <hannes.kaelber@x2e.de>. 819 */ 820 #define DLT_LIN 212 821 822 /* 823 * X2E-private data link type used for serial line capture, 824 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 825 */ 826 #define DLT_X2E_SERIAL 213 827 828 /* 829 * X2E-private data link type used for the Xoraya data logger 830 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 831 */ 832 #define DLT_X2E_XORAYA 214 833 834 /* 835 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 836 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 837 * of 0 as preamble, one octet of SFD, one octet of frame length+ 838 * reserved bit, and then the MAC-layer data, starting with the 839 * frame control field). 840 * 841 * Requested by Max Filippov <jcmvbkbc@gmail.com>. 842 */ 843 #define DLT_IEEE802_15_4_NONASK_PHY 215 844 845 /* 846 * David Gibson <david@gibson.dropbear.id.au> requested this for 847 * captures from the Linux kernel /dev/input/eventN devices. This 848 * is used to communicate keystrokes and mouse movements from the 849 * Linux kernel to display systems, such as Xorg. 850 */ 851 #define DLT_LINUX_EVDEV 216 852 853 /* 854 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 855 * 856 * Requested by Harald Welte <laforge@gnumonks.org>. 857 */ 858 #define DLT_GSMTAP_UM 217 859 #define DLT_GSMTAP_ABIS 218 860 861 /* 862 * MPLS, with an MPLS label as the link-layer header. 863 * Requested by Michele Marchetto <michele@openbsd.org> on behalf 864 * of OpenBSD. 865 */ 866 #define DLT_MPLS 219 867 868 /* 869 * USB packets, beginning with a Linux USB header, with the USB header 870 * padded to 64 bytes; required for memory-mapped access. 871 */ 872 #define DLT_USB_LINUX_MMAPPED 220 873 874 /* 875 * DECT packets, with a pseudo-header; requested by 876 * Matthias Wenzel <tcpdump@mazzoo.de>. 877 */ 878 #define DLT_DECT 221 879 880 /* 881 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov> 882 * Date: Mon, 11 May 2009 11:18:30 -0500 883 * 884 * DLT_AOS. We need it for AOS Space Data Link Protocol. 885 * I have already written dissectors for but need an OK from 886 * legal before I can submit a patch. 887 * 888 */ 889 #define DLT_AOS 222 890 891 /* 892 * Wireless HART (Highway Addressable Remote Transducer) 893 * From the HART Communication Foundation 894 * IES/PAS 62591 895 * 896 * Requested by Sam Roberts <vieuxtech@gmail.com>. 897 */ 898 #define DLT_WIHART 223 899 900 /* 901 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 902 * Requested by Kahou Lei <kahou82@gmail.com>. 903 */ 904 #define DLT_FC_2 224 905 906 /* 907 * Fibre Channel FC-2 frames, beginning with an encoding of the 908 * SOF, and ending with an encoding of the EOF. 909 * 910 * The encodings represent the frame delimiters as 4-byte sequences 911 * representing the corresponding ordered sets, with K28.5 912 * represented as 0xBC, and the D symbols as the corresponding 913 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 914 * is represented as 0xBC 0xB5 0x55 0x55. 915 * 916 * Requested by Kahou Lei <kahou82@gmail.com>. 917 */ 918 #define DLT_FC_2_WITH_FRAME_DELIMS 225 919 920 /* 921 * Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>. 922 * 923 * The pseudo-header starts with a one-byte version number; for version 2, 924 * the pseudo-header is: 925 * 926 * struct dl_ipnetinfo { 927 * u_int8_t dli_version; 928 * u_int8_t dli_family; 929 * u_int16_t dli_htype; 930 * u_int32_t dli_pktlen; 931 * u_int32_t dli_ifindex; 932 * u_int32_t dli_grifindex; 933 * u_int32_t dli_zsrc; 934 * u_int32_t dli_zdst; 935 * }; 936 * 937 * dli_version is 2 for the current version of the pseudo-header. 938 * 939 * dli_family is a Solaris address family value, so it's 2 for IPv4 940 * and 26 for IPv6. 941 * 942 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 943 * packets, and 2 for packets arriving from another zone on the same 944 * machine. 945 * 946 * dli_pktlen is the length of the packet data following the pseudo-header 947 * (so the captured length minus dli_pktlen is the length of the 948 * pseudo-header, assuming the entire pseudo-header was captured). 949 * 950 * dli_ifindex is the interface index of the interface on which the 951 * packet arrived. 952 * 953 * dli_grifindex is the group interface index number (for IPMP interfaces). 954 * 955 * dli_zsrc is the zone identifier for the source of the packet. 956 * 957 * dli_zdst is the zone identifier for the destination of the packet. 958 * 959 * A zone number of 0 is the global zone; a zone number of 0xffffffff 960 * means that the packet arrived from another host on the network, not 961 * from another zone on the same machine. 962 * 963 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 964 * which of those it is. 965 */ 966 #define DLT_IPNET 226 967 968 /* 969 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 970 * by Linux SocketCAN. See Documentation/networking/can.txt in the Linux 971 * source. 972 * 973 * Requested by Felix Obenhuber <felix@obenhuber.de>. 974 */ 975 #define DLT_CAN_SOCKETCAN 227 976 977 /* 978 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 979 * whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>. 980 */ 981 #define DLT_IPV4 228 982 #define DLT_IPV6 229 983 984 /* 985 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 986 * nothing), and with no FCS at the end of the frame; requested by 987 * Jon Smirl <jonsmirl@gmail.com>. 988 */ 989 #define DLT_IEEE802_15_4_NOFCS 230 990 991 /* 992 * Raw D-Bus: 993 * 994 * http://www.freedesktop.org/wiki/Software/dbus 995 * 996 * messages: 997 * 998 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 999 * 1000 * starting with the endianness flag, followed by the message type, etc., 1001 * but without the authentication handshake before the message sequence: 1002 * 1003 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1004 * 1005 * Requested by Martin Vidner <martin@vidner.net>. 1006 */ 1007 #define DLT_DBUS 231 1008 1009 /* 1010 * Juniper-private data link type, as per request from 1011 * Hannes Gredler <hannes@juniper.net>. 1012 */ 1013 #define DLT_JUNIPER_VS 232 1014 #define DLT_JUNIPER_SRX_E2E 233 1015 #define DLT_JUNIPER_FIBRECHANNEL 234 1016 1017 /* 1018 * DVB-CI (DVB Common Interface for communication between a PC Card 1019 * module and a DVB receiver). See 1020 * 1021 * http://www.kaiser.cx/pcap-dvbci.html 1022 * 1023 * for the specification. 1024 * 1025 * Requested by Martin Kaiser <martin@kaiser.cx>. 1026 */ 1027 #define DLT_DVB_CI 235 1028 1029 /* 1030 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1031 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1032 * <hans-christoph.schemmel@cinterion.com>. 1033 */ 1034 #define DLT_MUX27010 236 1035 1036 /* 1037 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1038 * <barisdemiray@gmail.com>. 1039 */ 1040 #define DLT_STANAG_5066_D_PDU 237 1041 1042 /* 1043 * Juniper-private data link type, as per request from 1044 * Hannes Gredler <hannes@juniper.net>. 1045 */ 1046 #define DLT_JUNIPER_ATM_CEMIC 238 1047 1048 /* 1049 * NetFilter LOG messages 1050 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1051 * 1052 * Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl> 1053 */ 1054 #define DLT_NFLOG 239 1055 1056 /* 1057 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1058 * for Ethernet packets with a 4-byte pseudo-header and always 1059 * with the payload including the FCS, as supplied by their 1060 * netANALYZER hardware and software. 1061 * 1062 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1063 */ 1064 #define DLT_NETANALYZER 240 1065 1066 /* 1067 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1068 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1069 * with the Ethernet header preceded by 7 bytes of preamble and 1070 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1071 * software. 1072 * 1073 * Requested by Holger P. Frommer <HPfrommer@hilscher.com> 1074 */ 1075 #define DLT_NETANALYZER_TRANSPARENT 241 1076 1077 /* 1078 * IP-over-Infiniband, as specified by RFC 4391. 1079 * 1080 * Requested by Petr Sumbera <petr.sumbera@oracle.com>. 1081 */ 1082 #define DLT_IPOIB 242 1083 1084 #define DLT_MATCHING_MAX 242 /* highest value in the "matching" range */ 1085 1086 /* 1087 * DLT and savefile link type values are split into a class and 1088 * a member of that class. A class value of 0 indicates a regular 1089 * DLT_/LINKTYPE_ value. 1090 */ 1091 #define DLT_CLASS(x) ((x) & 0x03ff0000) 1092 1093 /* 1094 * NetBSD-specific generic "raw" link type. The class value indicates 1095 * that this is the generic raw type, and the lower 16 bits are the 1096 * address family we're dealing with. Those values are NetBSD-specific; 1097 * do not assume that they correspond to AF_ values for your operating 1098 * system. 1099 */ 1100 #define DLT_CLASS_NETBSD_RAWAF 0x02240000 1101 #define DLT_NETBSD_RAWAF(af) (DLT_CLASS_NETBSD_RAWAF | (af)) 1102 #define DLT_NETBSD_RAWAF_AF(x) ((x) & 0x0000ffff) 1103 #define DLT_IS_NETBSD_RAWAF(x) (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF) 1104 1105 1106 /* 1107 * The instruction encodings. 1108 */ 1109 /* instruction classes */ 1110 #define BPF_CLASS(code) ((code) & 0x07) 1111 #define BPF_LD 0x00 1112 #define BPF_LDX 0x01 1113 #define BPF_ST 0x02 1114 #define BPF_STX 0x03 1115 #define BPF_ALU 0x04 1116 #define BPF_JMP 0x05 1117 #define BPF_RET 0x06 1118 #define BPF_MISC 0x07 1119 1120 /* ld/ldx fields */ 1121 #define BPF_SIZE(code) ((code) & 0x18) 1122 #define BPF_W 0x00 1123 #define BPF_H 0x08 1124 #define BPF_B 0x10 1125 #define BPF_MODE(code) ((code) & 0xe0) 1126 #define BPF_IMM 0x00 1127 #define BPF_ABS 0x20 1128 #define BPF_IND 0x40 1129 #define BPF_MEM 0x60 1130 #define BPF_LEN 0x80 1131 #define BPF_MSH 0xa0 1132 1133 /* alu/jmp fields */ 1134 #define BPF_OP(code) ((code) & 0xf0) 1135 #define BPF_ADD 0x00 1136 #define BPF_SUB 0x10 1137 #define BPF_MUL 0x20 1138 #define BPF_DIV 0x30 1139 #define BPF_OR 0x40 1140 #define BPF_AND 0x50 1141 #define BPF_LSH 0x60 1142 #define BPF_RSH 0x70 1143 #define BPF_NEG 0x80 1144 #define BPF_JA 0x00 1145 #define BPF_JEQ 0x10 1146 #define BPF_JGT 0x20 1147 #define BPF_JGE 0x30 1148 #define BPF_JSET 0x40 1149 #define BPF_SRC(code) ((code) & 0x08) 1150 #define BPF_K 0x00 1151 #define BPF_X 0x08 1152 1153 /* ret - BPF_K and BPF_X also apply */ 1154 #define BPF_RVAL(code) ((code) & 0x18) 1155 #define BPF_A 0x10 1156 1157 /* misc */ 1158 #define BPF_MISCOP(code) ((code) & 0xf8) 1159 #define BPF_TAX 0x00 1160 #define BPF_TXA 0x80 1161 1162 /* 1163 * The instruction data structure. 1164 */ 1165 struct bpf_insn { 1166 u_short code; 1167 u_char jt; 1168 u_char jf; 1169 bpf_u_int32 k; 1170 }; 1171 1172 /* 1173 * Macros for insn array initializers. 1174 */ 1175 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } 1176 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } 1177 1178 #if __STDC__ || defined(__cplusplus) 1179 extern int bpf_validate(const struct bpf_insn *, int); 1180 extern u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int); 1181 #else 1182 extern int bpf_validate(); 1183 extern u_int bpf_filter(); 1184 #endif 1185 1186 /* 1187 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 1188 */ 1189 #define BPF_MEMWORDS 16 1190 1191 #ifdef __cplusplus 1192 } 1193 #endif 1194 1195 #endif /* !defined(_NET_BPF_H_) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) */ 1196