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 1.19.2.8 2008-09-22 20:16:01 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 * XXX - should this all just be moved to "pcap.h"? 52 */ 53 54 #ifndef BPF_MAJOR_VERSION 55 56 #ifdef __cplusplus 57 extern "C" { 58 #endif 59 60 /* BSD style release date */ 61 #define BPF_RELEASE 199606 62 63 #ifdef MSDOS /* must be 32-bit */ 64 typedef long bpf_int32; 65 typedef unsigned long bpf_u_int32; 66 #else 67 typedef int bpf_int32; 68 typedef u_int bpf_u_int32; 69 #endif 70 71 /* 72 * Alignment macros. BPF_WORDALIGN rounds up to the next 73 * even multiple of BPF_ALIGNMENT. 74 */ 75 #ifndef __NetBSD__ 76 #define BPF_ALIGNMENT sizeof( bpf_int32 ) 77 #else 78 #define BPF_ALIGNMENT sizeof( long ) 79 #endif 80 #define BPF_WORDALIGN( x ) ( ( ( x ) + ( BPF_ALIGNMENT - 1 ) ) & ~( BPF_ALIGNMENT - 1 ) ) 81 82 #define BPF_MAXBUFSIZE 0x8000 83 #define BPF_MINBUFSIZE 32 84 85 /* 86 * Structure for "pcap_compile()", "pcap_setfilter()", etc.. 87 */ 88 struct bpf_program 89 { 90 u_int bf_len; 91 struct bpf_insn * bf_insns; 92 }; 93 94 /* 95 * Struct return by BIOCVERSION. This represents the version number of 96 * the filter language described by the instruction encodings below. 97 * bpf understands a program iff kernel_major == filter_major && 98 * kernel_minor >= filter_minor, that is, if the value returned by the 99 * running kernel has the same major number and a minor number equal 100 * equal to or less than the filter being downloaded. Otherwise, the 101 * results are undefined, meaning an error may be returned or packets 102 * may be accepted haphazardly. 103 * It has nothing to do with the source code version. 104 */ 105 struct bpf_version 106 { 107 u_short bv_major; 108 u_short bv_minor; 109 }; 110 /* Current version number of filter architecture. */ 111 #define BPF_MAJOR_VERSION 1 112 #define BPF_MINOR_VERSION 1 113 114 /* 115 * Data-link level type codes. 116 * 117 * Do *NOT* add new values to this list without asking 118 * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run 119 * the risk of using a value that's already being used for some other 120 * purpose, and of having tools that read libpcap-format captures not 121 * being able to handle captures with your new DLT_ value, with no hope 122 * that they will ever be changed to do so (as that would destroy their 123 * ability to read captures using that value for that other purpose). 124 */ 125 126 /* 127 * These are the types that are the same on all platforms, and that 128 * have been defined by <net/bpf.h> for ages. 129 */ 130 #define DLT_NULL 0 /* BSD loopback encapsulation */ 131 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 132 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 133 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 134 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 135 #define DLT_CHAOS 5 /* Chaos */ 136 #define DLT_IEEE802 6 /* 802.5 Token Ring */ 137 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ 138 #define DLT_SLIP 8 /* Serial Line IP */ 139 #define DLT_PPP 9 /* Point-to-point Protocol */ 140 #define DLT_FDDI 10 /* FDDI */ 141 142 /* 143 * These are types that are different on some platforms, and that 144 * have been defined by <net/bpf.h> for ages. We use #ifdefs to 145 * detect the BSDs that define them differently from the traditional 146 * libpcap <net/bpf.h> 147 * 148 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, 149 * but I don't know what the right #define is for BSD/OS. 150 */ 151 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ 152 153 #ifdef __OpenBSD__ 154 #define DLT_RAW 14 /* raw IP */ 155 #else 156 #define DLT_RAW 12 /* raw IP */ 157 #endif 158 159 /* 160 * Given that the only OS that currently generates BSD/OS SLIP or PPP 161 * is, well, BSD/OS, arguably everybody should have chosen its values 162 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they 163 * didn't. So it goes. 164 */ 165 #if defined( __NetBSD__ ) || defined( __FreeBSD__ ) 166 #ifndef DLT_SLIP_BSDOS 167 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ 168 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ 169 #endif 170 #else 171 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 172 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 173 #endif 174 175 /* 176 * 17 is used for DLT_OLD_PFLOG in OpenBSD; 177 * OBSOLETE: DLT_PFLOG is 117 in OpenBSD now as well. See below. 178 * 18 is used for DLT_PFSYNC in OpenBSD; don't use it for anything else. 179 */ 180 181 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 182 183 /* 184 * Apparently Redback uses this for its SmartEdge 400/800. I hope 185 * nobody else decided to use it, too. 186 */ 187 #define DLT_REDBACK_SMARTEDGE 32 188 189 /* 190 * These values are defined by NetBSD; other platforms should refrain from 191 * using them for other purposes, so that NetBSD savefiles with link 192 * types of 50 or 51 can be read as this type on all platforms. 193 */ 194 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 195 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 196 197 /* 198 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 199 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 200 * header has 6 bytes of unknown data, something that appears to be an 201 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 202 * I've seen. 203 */ 204 #define DLT_SYMANTEC_FIREWALL 99 205 206 /* 207 * Values between 100 and 103 are used in capture file headers as 208 * link-layer types corresponding to DLT_ types that differ 209 * between platforms; don't use those values for new DLT_ new types. 210 */ 211 212 /* 213 * This value was defined by libpcap 0.5; platforms that have defined 214 * it with a different value should define it here with that value - 215 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 216 * whatever value that happens to be, so programs will correctly 217 * handle files with that link type regardless of the value of 218 * DLT_C_HDLC. 219 * 220 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 221 * compatibility with programs written for BSD/OS. 222 * 223 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 224 * for source compatibility with programs written for libpcap 0.5. 225 */ 226 #define DLT_C_HDLC 104 /* Cisco HDLC */ 227 #define DLT_CHDLC DLT_C_HDLC 228 229 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 230 231 /* 232 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, 233 * except when it isn't. (I.e., sometimes it's just raw IP, and 234 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, 235 * so that we don't have to worry about the link-layer header.) 236 */ 237 238 /* 239 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 240 * with other values. 241 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 242 * (DLCI, etc.). 243 */ 244 #define DLT_FRELAY 107 245 246 /* 247 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 248 * that the AF_ type in the link-layer header is in network byte order. 249 * 250 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so 251 * we don't use 12 for it in OSes other than OpenBSD. 252 */ 253 #ifdef __OpenBSD__ 254 #define DLT_LOOP 12 255 #else 256 #define DLT_LOOP 108 257 #endif 258 259 /* 260 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 261 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 262 * than OpenBSD. 263 */ 264 #ifdef __OpenBSD__ 265 #define DLT_ENC 13 266 #else 267 #define DLT_ENC 109 268 #endif 269 270 /* 271 * Values between 110 and 112 are reserved for use in capture file headers 272 * as link-layer types corresponding to DLT_ types that might differ 273 * between platforms; don't use those values for new DLT_ types 274 * other than the corresponding DLT_ types. 275 */ 276 277 /* 278 * This is for Linux cooked sockets. 279 */ 280 #define DLT_LINUX_SLL 113 281 282 /* 283 * Apple LocalTalk hardware. 284 */ 285 #define DLT_LTALK 114 286 287 /* 288 * Acorn Econet. 289 */ 290 #define DLT_ECONET 115 291 292 /* 293 * Reserved for use with OpenBSD ipfilter. 294 */ 295 #define DLT_IPFILTER 116 296 297 /* 298 * OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD, but that's DLT_LANE8023 299 * in SuSE 6.3, so we can't use 17 for it in capture-file headers. 300 * 301 * XXX: is there a conflict with DLT_PFSYNC 18 as well? 302 */ 303 #ifdef __OpenBSD__ 304 #define DLT_OLD_PFLOG 17 305 #define DLT_PFSYNC 18 306 #endif 307 #define DLT_PFLOG 117 308 309 /* 310 * Registered for Cisco-internal use. 311 */ 312 #define DLT_CISCO_IOS 118 313 314 /* 315 * For 802.11 cards using the Prism II chips, with a link-layer 316 * header including Prism monitor mode information plus an 802.11 317 * header. 318 */ 319 #define DLT_PRISM_HEADER 119 320 321 /* 322 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 323 * (see Doug Ambrisko's FreeBSD patches). 324 */ 325 #define DLT_AIRONET_HEADER 120 326 327 /* 328 * Reserved for Siemens HiPath HDLC. 329 */ 330 #define DLT_HHDLC 121 331 332 /* 333 * This is for RFC 2625 IP-over-Fibre Channel. 334 * 335 * This is not for use with raw Fibre Channel, where the link-layer 336 * header starts with a Fibre Channel frame header; it's for IP-over-FC, 337 * where the link-layer header starts with an RFC 2625 Network_Header 338 * field. 339 */ 340 #define DLT_IP_OVER_FC 122 341 342 /* 343 * This is for Full Frontal ATM on Solaris with SunATM, with a 344 * pseudo-header followed by an AALn PDU. 345 * 346 * There may be other forms of Full Frontal ATM on other OSes, 347 * with different pseudo-headers. 348 * 349 * If ATM software returns a pseudo-header with VPI/VCI information 350 * (and, ideally, packet type information, e.g. signalling, ILMI, 351 * LANE, LLC-multiplexed traffic, etc.), it should not use 352 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump 353 * and the like don't have to infer the presence or absence of a 354 * pseudo-header and the form of the pseudo-header. 355 */ 356 #define DLT_SUNATM 123 /* Solaris+SunATM */ 357 358 /* 359 * Reserved as per request from Kent Dahlgren <kent@praesum.com> 360 * for private use. 361 */ 362 #define DLT_RIO 124 /* RapidIO */ 363 #define DLT_PCI_EXP 125 /* PCI Express */ 364 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 365 366 /* 367 * Header for 802.11 plus a number of bits of link-layer information 368 * including radio information, used by some recent BSD drivers as 369 * well as the madwifi Atheros driver for Linux. 370 */ 371 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ 372 373 /* 374 * Reserved for the TZSP encapsulation, as per request from 375 * Chris Waters <chris.waters@networkchemistry.com> 376 * TZSP is a generic encapsulation for any other link type, 377 * which includes a means to include meta-information 378 * with the packet, e.g. signal strength and channel 379 * for 802.11 packets. 380 */ 381 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 382 383 /* 384 * BSD's ARCNET headers have the source host, destination host, 385 * and type at the beginning of the packet; that's what's handed 386 * up to userland via BPF. 387 * 388 * Linux's ARCNET headers, however, have a 2-byte offset field 389 * between the host IDs and the type; that's what's handed up 390 * to userland via PF_PACKET sockets. 391 * 392 * We therefore have to have separate DLT_ values for them. 393 */ 394 #define DLT_ARCNET_LINUX 129 /* ARCNET */ 395 396 /* 397 * Juniper-private data link types, as per request from 398 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 399 * for passing on chassis-internal metainformation such as 400 * QOS profiles, etc.. 401 */ 402 #define DLT_JUNIPER_MLPPP 130 403 #define DLT_JUNIPER_MLFR 131 404 #define DLT_JUNIPER_ES 132 405 #define DLT_JUNIPER_GGSN 133 406 #define DLT_JUNIPER_MFR 134 407 #define DLT_JUNIPER_ATM2 135 408 #define DLT_JUNIPER_SERVICES 136 409 #define DLT_JUNIPER_ATM1 137 410 411 /* 412 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 413 * <dieter@apple.com>. The header that's presented is an Ethernet-like 414 * header: 415 * 416 * #define FIREWIRE_EUI64_LEN 8 417 * struct firewire_header { 418 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 419 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 420 * u_short firewire_type; 421 * }; 422 * 423 * with "firewire_type" being an Ethernet type value, rather than, 424 * for example, raw GASP frames being handed up. 425 */ 426 #define DLT_APPLE_IP_OVER_IEEE1394 138 427 428 /* 429 * Various SS7 encapsulations, as per a request from Jeff Morriss 430 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 431 */ 432 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 433 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 434 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 435 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 436 437 /* 438 * DOCSIS MAC frames. 439 */ 440 #define DLT_DOCSIS 143 441 442 /* 443 * Linux-IrDA packets. Protocol defined at http://www.irda.org. 444 * Those packets include IrLAP headers and above (IrLMP...), but 445 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy 446 * framing can be handled by the hardware and depend on the bitrate. 447 * This is exactly the format you would get capturing on a Linux-IrDA 448 * interface (irdaX), but not on a raw serial port. 449 * Note the capture is done in "Linux-cooked" mode, so each packet include 450 * a fake packet header (struct sll_header). This is because IrDA packet 451 * decoding is dependant on the direction of the packet (incoming or 452 * outgoing). 453 * When/if other platform implement IrDA capture, we may revisit the 454 * issue and define a real DLT_IRDA... 455 * Jean II 456 */ 457 #define DLT_LINUX_IRDA 144 458 459 /* 460 * Reserved for IBM SP switch and IBM Next Federation switch. 461 */ 462 #define DLT_IBM_SP 145 463 #define DLT_IBM_SN 146 464 465 /* 466 * Reserved for private use. If you have some link-layer header type 467 * that you want to use within your organization, with the capture files 468 * using that link-layer header type not ever be sent outside your 469 * organization, you can use these values. 470 * 471 * No libpcap release will use these for any purpose, nor will any 472 * tcpdump release use them, either. 473 * 474 * Do *NOT* use these in capture files that you expect anybody not using 475 * your private versions of capture-file-reading tools to read; in 476 * particular, do *NOT* use them in products, otherwise you may find that 477 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 478 * read capture files from your firewall/intrusion detection/traffic 479 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 480 * and you may also find that the developers of those applications will 481 * not accept patches to let them read those files. 482 * 483 * Also, do not use them if somebody might send you a capture using them 484 * for *their* private type and tools using them for *your* private type 485 * would have to read them. 486 * 487 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value, 488 * as per the comment above, and use the type you're given. 489 */ 490 #define DLT_USER0 147 491 #define DLT_USER1 148 492 #define DLT_USER2 149 493 #define DLT_USER3 150 494 #define DLT_USER4 151 495 #define DLT_USER5 152 496 #define DLT_USER6 153 497 #define DLT_USER7 154 498 #define DLT_USER8 155 499 #define DLT_USER9 156 500 #define DLT_USER10 157 501 #define DLT_USER11 158 502 #define DLT_USER12 159 503 #define DLT_USER13 160 504 #define DLT_USER14 161 505 #define DLT_USER15 162 506 507 /* 508 * For future use with 802.11 captures - defined by AbsoluteValue 509 * Systems to store a number of bits of link-layer information 510 * including radio information: 511 * 512 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 513 * 514 * but it might be used by some non-AVS drivers now or in the 515 * future. 516 */ 517 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 518 519 /* 520 * Juniper-private data link type, as per request from 521 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 522 * for passing on chassis-internal metainformation such as 523 * QOS profiles, etc.. 524 */ 525 #define DLT_JUNIPER_MONITOR 164 526 527 /* 528 * Reserved for BACnet MS/TP. 529 */ 530 #define DLT_BACNET_MS_TP 165 531 532 /* 533 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. 534 * 535 * This is used in some OSes to allow a kernel socket filter to distinguish 536 * between incoming and outgoing packets, on a socket intended to 537 * supply pppd with outgoing packets so it can do dial-on-demand and 538 * hangup-on-lack-of-demand; incoming packets are filtered out so they 539 * don't cause pppd to hold the connection up (you don't want random 540 * input packets such as port scans, packets from old lost connections, 541 * etc. to force the connection to stay up). 542 * 543 * The first byte of the PPP header (0xff03) is modified to accommodate 544 * the direction - 0x00 = IN, 0x01 = OUT. 545 */ 546 #define DLT_PPP_PPPD 166 547 548 /* 549 * Names for backwards compatibility with older versions of some PPP 550 * software; new software should use DLT_PPP_PPPD. 551 */ 552 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 553 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 554 555 /* 556 * Juniper-private data link type, as per request from 557 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 558 * for passing on chassis-internal metainformation such as 559 * QOS profiles, cookies, etc.. 560 */ 561 #define DLT_JUNIPER_PPPOE 167 562 #define DLT_JUNIPER_PPPOE_ATM 168 563 564 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 565 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 566 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 567 568 /* 569 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line 570 * monitoring equipment. 571 */ 572 #define DLT_GCOM_T1E1 172 573 #define DLT_GCOM_SERIAL 173 574 575 /* 576 * Juniper-private data link type, as per request from 577 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used 578 * for internal communication to Physical Interface Cards (PIC) 579 */ 580 #define DLT_JUNIPER_PIC_PEER 174 581 582 /* 583 * Link types requested by Gregor Maier <gregor@endace.com> of Endace 584 * Measurement Systems. They add an ERF header (see 585 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 586 * the link-layer header. 587 */ 588 #define DLT_ERF_ETH 175 /* Ethernet */ 589 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 590 591 /* 592 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD 593 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 594 * includes additional information before the LAPD header, so it's 595 * not necessarily a generic LAPD header. 596 */ 597 #define DLT_LINUX_LAPD 177 598 599 /* 600 * Juniper-private data link type, as per request from 601 * Hannes Gredler <hannes@juniper.net>. 602 * The DLT_ are used for prepending meta-information 603 * like interface index, interface name 604 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 605 */ 606 #define DLT_JUNIPER_ETHER 178 607 #define DLT_JUNIPER_PPP 179 608 #define DLT_JUNIPER_FRELAY 180 609 #define DLT_JUNIPER_CHDLC 181 610 611 /* 612 * Multi Link Frame Relay (FRF.16) 613 */ 614 #define DLT_MFR 182 615 616 /* 617 * Juniper-private data link type, as per request from 618 * Hannes Gredler <hannes@juniper.net>. 619 * The DLT_ is used for internal communication with a 620 * voice Adapter Card (PIC) 621 */ 622 #define DLT_JUNIPER_VP 183 623 624 /* 625 * Arinc 429 frames. 626 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 627 * Every frame contains a 32bit A429 label. 628 * More documentation on Arinc 429 can be found at 629 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 630 */ 631 #define DLT_A429 184 632 633 /* 634 * Arinc 653 Interpartition Communication messages. 635 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 636 * Please refer to the A653-1 standard for more information. 637 */ 638 #define DLT_A653_ICM 185 639 640 /* 641 * USB packets, beginning with a USB setup header; requested by 642 * Paolo Abeni <paolo.abeni@email.it>. 643 */ 644 #define DLT_USB 186 645 646 /* 647 * Bluetooth HCI UART transport layer (part H:4); requested by 648 * Paolo Abeni. 649 */ 650 #define DLT_BLUETOOTH_HCI_H4 187 651 652 /* 653 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 654 * <cruz_petagay@bah.com>. 655 */ 656 #define DLT_IEEE802_16_MAC_CPS 188 657 658 /* 659 * USB packets, beginning with a Linux USB header; requested by 660 * Paolo Abeni <paolo.abeni@email.it>. 661 */ 662 #define DLT_USB_LINUX 189 663 664 /* 665 * Controller Area Network (CAN) v. 2.0B packets. 666 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 667 * Used to dump CAN packets coming from a CAN Vector board. 668 * More documentation on the CAN v2.0B frames can be found at 669 * http://www.can-cia.org/downloads/?269 670 */ 671 #define DLT_CAN20B 190 672 673 /* 674 * IEEE 802.15.4, with address fields padded, as is done by Linux 675 * drivers; requested by Juergen Schimmer. 676 */ 677 #define DLT_IEEE802_15_4_LINUX 191 678 679 /* 680 * Per Packet Information encapsulated packets. 681 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 682 */ 683 #define DLT_PPI 192 684 685 /* 686 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 687 * requested by Charles Clancy. 688 */ 689 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 690 691 /* 692 * Juniper-private data link type, as per request from 693 * Hannes Gredler <hannes@juniper.net>. 694 * The DLT_ is used for internal communication with a 695 * integrated service module (ISM). 696 */ 697 #define DLT_JUNIPER_ISM 194 698 699 /* 700 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 701 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. 702 */ 703 #define DLT_IEEE802_15_4 195 704 705 /* 706 * Various link-layer types, with a pseudo-header, for SITA 707 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). 708 */ 709 #define DLT_SITA 196 710 711 /* 712 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 713 * encapsulates Endace ERF records. Requested by Stephen Donnelly 714 * <stephen@endace.com>. 715 */ 716 #define DLT_ERF 197 717 718 /* 719 * Special header prepended to Ethernet packets when capturing from a 720 * u10 Networks board. Requested by Phil Mulholland 721 * <phil@u10networks.com>. 722 */ 723 #define DLT_RAIF1 198 724 725 /* 726 * IPMB packet for IPMI, beginning with the I2C slave address, followed 727 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 728 * <chanthy.toeung@ca.kontron.com>. 729 */ 730 #define DLT_IPMB 199 731 732 /* 733 * Juniper-private data link type, as per request from 734 * Hannes Gredler <hannes@juniper.net>. 735 * The DLT_ is used for capturing data on a secure tunnel interface. 736 */ 737 #define DLT_JUNIPER_ST 200 738 739 /* 740 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 741 * that includes direction information; requested by Paolo Abeni. 742 */ 743 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 744 745 /* 746 * AX.25 packet with a 1-byte KISS header; see 747 * 748 * http://www.ax25.net/kiss.htm 749 * 750 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>. 751 */ 752 #define DLT_AX25_KISS 202 753 754 /* 755 * LAPD packets from an ISDN channel, starting with the address field, 756 * with no pseudo-header. 757 * Requested by Varuna De Silva <varunax@gmail.com>. 758 */ 759 #define DLT_LAPD 203 760 761 /* 762 * Variants of various link-layer headers, with a one-byte direction 763 * pseudo-header prepended - zero means "received by this host", 764 * non-zero (any non-zero value) means "sent by this host" - as per 765 * Will Barker <w.barker@zen.co.uk>. 766 */ 767 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */ 768 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */ 769 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */ 770 #define DLT_LAPB_WITH_DIR 207 /* LAPB */ 771 772 /* 773 * 208 is reserved for an as-yet-unspecified proprietary link-layer 774 * type, as requested by Will Barker. 775 */ 776 777 /* 778 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 779 * <avn@pigeonpoint.com>. 780 */ 781 #define DLT_IPMB_LINUX 209 782 783 /* 784 * FlexRay automotive bus - http://www.flexray.com/ - as requested 785 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 786 */ 787 #define DLT_FLEXRAY 210 788 789 /* 790 * Media Oriented Systems Transport (MOST) bus for multimedia 791 * transport - http://www.mostcooperation.com/ - as requested 792 * by Hannes Kaelber <hannes.kaelber@x2e.de>. 793 */ 794 #define DLT_MOST 211 795 796 /* 797 * Local Interconnect Network (LIN) bus for vehicle networks - 798 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 799 * <hannes.kaelber@x2e.de>. 800 */ 801 #define DLT_LIN 212 802 803 /* 804 * X2E-private data link type used for serial line capture, 805 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 806 */ 807 #define DLT_X2E_SERIAL 213 808 809 /* 810 * X2E-private data link type used for the Xoraya data logger 811 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>. 812 */ 813 #define DLT_X2E_XORAYA 214 814 815 /* 816 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 817 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 818 * of 0 as preamble, one octet of SFD, one octet of frame length+ 819 * reserved bit, and then the MAC-layer data, starting with the 820 * frame control field). 821 * 822 * Requested by Max Filippov <jcmvbkbc@gmail.com>. 823 */ 824 #define DLT_IEEE802_15_4_NONASK_PHY 215 825 826 827 /* 828 * DLT and savefile link type values are split into a class and 829 * a member of that class. A class value of 0 indicates a regular 830 * DLT_/LINKTYPE_ value. 831 */ 832 #define DLT_CLASS( x ) ( ( x ) & 0x03ff0000 ) 833 834 /* 835 * NetBSD-specific generic "raw" link type. The class value indicates 836 * that this is the generic raw type, and the lower 16 bits are the 837 * address family we're dealing with. Those values are NetBSD-specific; 838 * do not assume that they correspond to AF_ values for your operating 839 * system. 840 */ 841 #define DLT_CLASS_NETBSD_RAWAF 0x02240000 842 #define DLT_NETBSD_RAWAF( af ) ( DLT_CLASS_NETBSD_RAWAF | ( af ) ) 843 #define DLT_NETBSD_RAWAF_AF( x ) ( ( x ) & 0x0000ffff ) 844 #define DLT_IS_NETBSD_RAWAF( x ) ( DLT_CLASS( x ) == DLT_CLASS_NETBSD_RAWAF ) 845 846 847 /* 848 * The instruction encodings. 849 */ 850 /* instruction classes */ 851 #define BPF_CLASS( code ) ( ( code ) & 0x07 ) 852 #define BPF_LD 0x00 853 #define BPF_LDX 0x01 854 #define BPF_ST 0x02 855 #define BPF_STX 0x03 856 #define BPF_ALU 0x04 857 #define BPF_JMP 0x05 858 #define BPF_RET 0x06 859 #define BPF_MISC 0x07 860 861 /* ld/ldx fields */ 862 #define BPF_SIZE( code ) ( ( code ) & 0x18 ) 863 #define BPF_W 0x00 864 #define BPF_H 0x08 865 #define BPF_B 0x10 866 #define BPF_MODE( code ) ( ( code ) & 0xe0 ) 867 #define BPF_IMM 0x00 868 #define BPF_ABS 0x20 869 #define BPF_IND 0x40 870 #define BPF_MEM 0x60 871 #define BPF_LEN 0x80 872 #define BPF_MSH 0xa0 873 874 /* alu/jmp fields */ 875 #define BPF_OP( code ) ( ( code ) & 0xf0 ) 876 #define BPF_ADD 0x00 877 #define BPF_SUB 0x10 878 #define BPF_MUL 0x20 879 #define BPF_DIV 0x30 880 #define BPF_OR 0x40 881 #define BPF_AND 0x50 882 #define BPF_LSH 0x60 883 #define BPF_RSH 0x70 884 #define BPF_NEG 0x80 885 #define BPF_JA 0x00 886 #define BPF_JEQ 0x10 887 #define BPF_JGT 0x20 888 #define BPF_JGE 0x30 889 #define BPF_JSET 0x40 890 #define BPF_SRC( code ) ( ( code ) & 0x08 ) 891 #define BPF_K 0x00 892 #define BPF_X 0x08 893 894 /* ret - BPF_K and BPF_X also apply */ 895 #define BPF_RVAL( code ) ( ( code ) & 0x18 ) 896 #define BPF_A 0x10 897 898 /* misc */ 899 #define BPF_MISCOP( code ) ( ( code ) & 0xf8 ) 900 #define BPF_TAX 0x00 901 #define BPF_TXA 0x80 902 903 /* 904 * The instruction data structure. 905 */ 906 struct bpf_insn 907 { 908 u_short code; 909 u_char jt; 910 u_char jf; 911 bpf_u_int32 k; 912 }; 913 914 /* 915 * Macros for insn array initializers. 916 */ 917 #define BPF_STMT( code, k ) { ( u_short ) ( code ), 0, 0, k } 918 #define BPF_JUMP( code, k, jt, jf ) { ( u_short ) ( code ), jt, jf, k } 919 920 #if __STDC__ || defined( __cplusplus ) 921 extern int bpf_validate( const struct bpf_insn *, 922 int ); 923 extern u_int bpf_filter( const struct bpf_insn *, 924 const u_char *, 925 u_int, 926 u_int ); 927 #else 928 extern int bpf_validate(); 929 extern u_int bpf_filter(); 930 #endif 931 932 /* 933 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 934 */ 935 #define BPF_MEMWORDS 16 936 937 #ifdef __cplusplus 938 } 939 #endif 940 941 #endif /* ifndef BPF_MAJOR_VERSION */ 942