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 1.34.2.24 2007/09/19 02:52:12 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_MAXINSNS 512 83 #define BPF_MAXBUFSIZE 0x8000 84 #define BPF_MINBUFSIZE 32 85 86 /* 87 * Structure for "pcap_compile()", "pcap_setfilter()", etc.. 88 */ 89 struct bpf_program { 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 u_short bv_major; 107 u_short bv_minor; 108 }; 109 /* Current version number of filter architecture. */ 110 #define BPF_MAJOR_VERSION 1 111 #define BPF_MINOR_VERSION 1 112 113 /* 114 * Data-link level type codes. 115 * 116 * Do *NOT* add new values to this list without asking 117 * "tcpdump-workers@tcpdump.org" for a value. Otherwise, you run the 118 * risk of using a value that's already being used for some other purpose, 119 * and of having tools that read libpcap-format captures not being able 120 * to handle captures with your new DLT_ value, with no hope that they 121 * will ever be changed to do so (as that would destroy their ability 122 * to read captures using that value for that other purpose). 123 */ 124 125 /* 126 * These are the types that are the same on all platforms, and that 127 * have been defined by <net/bpf.h> for ages. 128 */ 129 #define DLT_NULL 0 /* BSD loopback encapsulation */ 130 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 131 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 132 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 133 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 134 #define DLT_CHAOS 5 /* Chaos */ 135 #define DLT_IEEE802 6 /* 802.5 Token Ring */ 136 #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ 137 #define DLT_SLIP 8 /* Serial Line IP */ 138 #define DLT_PPP 9 /* Point-to-point Protocol */ 139 #define DLT_FDDI 10 /* FDDI */ 140 141 /* 142 * These are types that are different on some platforms, and that 143 * have been defined by <net/bpf.h> for ages. We use #ifdefs to 144 * detect the BSDs that define them differently from the traditional 145 * libpcap <net/bpf.h> 146 * 147 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, 148 * but I don't know what the right #define is for BSD/OS. 149 */ 150 #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ 151 152 #ifdef __OpenBSD__ 153 #define DLT_RAW 14 /* raw IP */ 154 #else 155 #define DLT_RAW 12 /* raw IP */ 156 #endif 157 158 /* 159 * Given that the only OS that currently generates BSD/OS SLIP or PPP 160 * is, well, BSD/OS, arguably everybody should have chosen its values 161 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they 162 * didn't. So it goes. 163 */ 164 #if defined(__NetBSD__) || defined(__FreeBSD__) 165 #ifndef DLT_SLIP_BSDOS 166 #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ 167 #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ 168 #endif 169 #else 170 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 171 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 172 #endif 173 174 /* 175 * 17 is used for DLT_OLD_PFLOG in OpenBSD; 176 * OBSOLETE: DLT_PFLOG is 117 in OpenBSD now as well. See below. 177 * 18 is used for DLT_PFSYNC in OpenBSD; don't use it for anything else. 178 */ 179 180 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 181 182 /* 183 * Apparently Redback uses this for its SmartEdge 400/800. I hope 184 * nobody else decided to use it, too. 185 */ 186 #define DLT_REDBACK_SMARTEDGE 32 187 188 /* 189 * These values are defined by NetBSD; other platforms should refrain from 190 * using them for other purposes, so that NetBSD savefiles with link 191 * types of 50 or 51 can be read as this type on all platforms. 192 */ 193 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 194 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 195 196 /* 197 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 198 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 199 * header has 6 bytes of unknown data, something that appears to be an 200 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 201 * I've seen. 202 */ 203 #define DLT_SYMANTEC_FIREWALL 99 204 205 /* 206 * Values between 100 and 103 are used in capture file headers as 207 * link-layer types corresponding to DLT_ types that differ 208 * between platforms; don't use those values for new DLT_ new types. 209 */ 210 211 /* 212 * This value was defined by libpcap 0.5; platforms that have defined 213 * it with a different value should define it here with that value - 214 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 215 * whatever value that happens to be, so programs will correctly 216 * handle files with that link type regardless of the value of 217 * DLT_C_HDLC. 218 * 219 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 220 * compatibility with programs written for BSD/OS. 221 * 222 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 223 * for source compatibility with programs written for libpcap 0.5. 224 */ 225 #define DLT_C_HDLC 104 /* Cisco HDLC */ 226 #define DLT_CHDLC DLT_C_HDLC 227 228 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 229 230 /* 231 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, 232 * except when it isn't. (I.e., sometimes it's just raw IP, and 233 * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, 234 * so that we don't have to worry about the link-layer header.) 235 */ 236 237 /* 238 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 239 * with other values. 240 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 241 * (DLCI, etc.). 242 */ 243 #define DLT_FRELAY 107 244 245 /* 246 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 247 * that the AF_ type in the link-layer header is in network byte order. 248 * 249 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so 250 * we don't use 12 for it in OSes other than OpenBSD. 251 */ 252 #ifdef __OpenBSD__ 253 #define DLT_LOOP 12 254 #else 255 #define DLT_LOOP 108 256 #endif 257 258 /* 259 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 260 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 261 * than OpenBSD. 262 */ 263 #ifdef __OpenBSD__ 264 #define DLT_ENC 13 265 #else 266 #define DLT_ENC 109 267 #endif 268 269 /* 270 * Values between 110 and 112 are reserved for use in capture file headers 271 * as link-layer types corresponding to DLT_ types that might differ 272 * between platforms; don't use those values for new DLT_ types 273 * other than the corresponding DLT_ types. 274 */ 275 276 /* 277 * This is for Linux cooked sockets. 278 */ 279 #define DLT_LINUX_SLL 113 280 281 /* 282 * Apple LocalTalk hardware. 283 */ 284 #define DLT_LTALK 114 285 286 /* 287 * Acorn Econet. 288 */ 289 #define DLT_ECONET 115 290 291 /* 292 * Reserved for use with OpenBSD ipfilter. 293 */ 294 #define DLT_IPFILTER 116 295 296 /* 297 * OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD, but that's DLT_LANE8023 298 * in SuSE 6.3, so we can't use 17 for it in capture-file headers. 299 * 300 * XXX: is there a conflict with DLT_PFSYNC 18 as well? 301 */ 302 #ifdef __OpenBSD__ 303 #define DLT_OLD_PFLOG 17 304 #define DLT_PFSYNC 18 305 #endif 306 #define DLT_PFLOG 117 307 308 /* 309 * Registered for Cisco-internal use. 310 */ 311 #define DLT_CISCO_IOS 118 312 313 /* 314 * For 802.11 cards using the Prism II chips, with a link-layer 315 * header including Prism monitor mode information plus an 802.11 316 * header. 317 */ 318 #define DLT_PRISM_HEADER 119 319 320 /* 321 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 322 * (see Doug Ambrisko's FreeBSD patches). 323 */ 324 #define DLT_AIRONET_HEADER 120 325 326 /* 327 * Reserved for Siemens HiPath HDLC. 328 */ 329 #define DLT_HHDLC 121 330 331 /* 332 * This is for RFC 2625 IP-over-Fibre Channel. 333 * 334 * This is not for use with raw Fibre Channel, where the link-layer 335 * header starts with a Fibre Channel frame header; it's for IP-over-FC, 336 * where the link-layer header starts with an RFC 2625 Network_Header 337 * field. 338 */ 339 #define DLT_IP_OVER_FC 122 340 341 /* 342 * This is for Full Frontal ATM on Solaris with SunATM, with a 343 * pseudo-header followed by an AALn PDU. 344 * 345 * There may be other forms of Full Frontal ATM on other OSes, 346 * with different pseudo-headers. 347 * 348 * If ATM software returns a pseudo-header with VPI/VCI information 349 * (and, ideally, packet type information, e.g. signalling, ILMI, 350 * LANE, LLC-multiplexed traffic, etc.), it should not use 351 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump 352 * and the like don't have to infer the presence or absence of a 353 * pseudo-header and the form of the pseudo-header. 354 */ 355 #define DLT_SUNATM 123 /* Solaris+SunATM */ 356 357 /* 358 * Reserved as per request from Kent Dahlgren <kent@praesum.com> 359 * for private use. 360 */ 361 #define DLT_RIO 124 /* RapidIO */ 362 #define DLT_PCI_EXP 125 /* PCI Express */ 363 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 364 365 /* 366 * Header for 802.11 plus a number of bits of link-layer information 367 * including radio information, used by some recent BSD drivers as 368 * well as the madwifi Atheros driver for Linux. 369 */ 370 #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ 371 372 /* 373 * Reserved for the TZSP encapsulation, as per request from 374 * Chris Waters <chris.waters@networkchemistry.com> 375 * TZSP is a generic encapsulation for any other link type, 376 * which includes a means to include meta-information 377 * with the packet, e.g. signal strength and channel 378 * for 802.11 packets. 379 */ 380 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 381 382 /* 383 * BSD's ARCNET headers have the source host, destination host, 384 * and type at the beginning of the packet; that's what's handed 385 * up to userland via BPF. 386 * 387 * Linux's ARCNET headers, however, have a 2-byte offset field 388 * between the host IDs and the type; that's what's handed up 389 * to userland via PF_PACKET sockets. 390 * 391 * We therefore have to have separate DLT_ values for them. 392 */ 393 #define DLT_ARCNET_LINUX 129 /* ARCNET */ 394 395 /* 396 * Juniper-private data link types, as per request from 397 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 398 * for passing on chassis-internal metainformation such as 399 * QOS profiles, etc.. 400 */ 401 #define DLT_JUNIPER_MLPPP 130 402 #define DLT_JUNIPER_MLFR 131 403 #define DLT_JUNIPER_ES 132 404 #define DLT_JUNIPER_GGSN 133 405 #define DLT_JUNIPER_MFR 134 406 #define DLT_JUNIPER_ATM2 135 407 #define DLT_JUNIPER_SERVICES 136 408 #define DLT_JUNIPER_ATM1 137 409 410 /* 411 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 412 * <dieter@apple.com>. The header that's presented is an Ethernet-like 413 * header: 414 * 415 * #define FIREWIRE_EUI64_LEN 8 416 * struct firewire_header { 417 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 418 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 419 * u_short firewire_type; 420 * }; 421 * 422 * with "firewire_type" being an Ethernet type value, rather than, 423 * for example, raw GASP frames being handed up. 424 */ 425 #define DLT_APPLE_IP_OVER_IEEE1394 138 426 427 /* 428 * Various SS7 encapsulations, as per a request from Jeff Morriss 429 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 430 */ 431 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 432 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 433 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 434 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 435 436 /* 437 * DOCSIS MAC frames. 438 */ 439 #define DLT_DOCSIS 143 440 441 /* 442 * Linux-IrDA packets. Protocol defined at http://www.irda.org. 443 * Those packets include IrLAP headers and above (IrLMP...), but 444 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy 445 * framing can be handled by the hardware and depend on the bitrate. 446 * This is exactly the format you would get capturing on a Linux-IrDA 447 * interface (irdaX), but not on a raw serial port. 448 * Note the capture is done in "Linux-cooked" mode, so each packet include 449 * a fake packet header (struct sll_header). This is because IrDA packet 450 * decoding is dependant on the direction of the packet (incomming or 451 * outgoing). 452 * When/if other platform implement IrDA capture, we may revisit the 453 * issue and define a real DLT_IRDA... 454 * Jean II 455 */ 456 #define DLT_LINUX_IRDA 144 457 458 /* 459 * Reserved for IBM SP switch and IBM Next Federation switch. 460 */ 461 #define DLT_IBM_SP 145 462 #define DLT_IBM_SN 146 463 464 /* 465 * Reserved for private use. If you have some link-layer header type 466 * that you want to use within your organization, with the capture files 467 * using that link-layer header type not ever be sent outside your 468 * organization, you can use these values. 469 * 470 * No libpcap release will use these for any purpose, nor will any 471 * tcpdump release use them, either. 472 * 473 * Do *NOT* use these in capture files that you expect anybody not using 474 * your private versions of capture-file-reading tools to read; in 475 * particular, do *NOT* use them in products, otherwise you may find that 476 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 477 * read capture files from your firewall/intrusion detection/traffic 478 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 479 * and you may also find that the developers of those applications will 480 * not accept patches to let them read those files. 481 * 482 * Also, do not use them if somebody might send you a capture using them 483 * for *their* private type and tools using them for *your* private type 484 * would have to read them. 485 * 486 * Instead, ask "tcpdump-workers@tcpdump.org" for a new DLT_ value, 487 * as per the comment above, and use the type you're given. 488 */ 489 #define DLT_USER0 147 490 #define DLT_USER1 148 491 #define DLT_USER2 149 492 #define DLT_USER3 150 493 #define DLT_USER4 151 494 #define DLT_USER5 152 495 #define DLT_USER6 153 496 #define DLT_USER7 154 497 #define DLT_USER8 155 498 #define DLT_USER9 156 499 #define DLT_USER10 157 500 #define DLT_USER11 158 501 #define DLT_USER12 159 502 #define DLT_USER13 160 503 #define DLT_USER14 161 504 #define DLT_USER15 162 505 506 /* 507 * For future use with 802.11 captures - defined by AbsoluteValue 508 * Systems to store a number of bits of link-layer information 509 * including radio information: 510 * 511 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 512 * 513 * but it might be used by some non-AVS drivers now or in the 514 * future. 515 */ 516 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 517 518 /* 519 * Juniper-private data link type, as per request from 520 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 521 * for passing on chassis-internal metainformation such as 522 * QOS profiles, etc.. 523 */ 524 #define DLT_JUNIPER_MONITOR 164 525 526 /* 527 * Reserved for BACnet MS/TP. 528 */ 529 #define DLT_BACNET_MS_TP 165 530 531 /* 532 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. 533 * 534 * This is used in some OSes to allow a kernel socket filter to distinguish 535 * between incoming and outgoing packets, on a socket intended to 536 * supply pppd with outgoing packets so it can do dial-on-demand and 537 * hangup-on-lack-of-demand; incoming packets are filtered out so they 538 * don't cause pppd to hold the connection up (you don't want random 539 * input packets such as port scans, packets from old lost connections, 540 * etc. to force the connection to stay up). 541 * 542 * The first byte of the PPP header (0xff03) is modified to accomodate 543 * the direction - 0x00 = IN, 0x01 = OUT. 544 */ 545 #define DLT_PPP_PPPD 166 546 547 /* 548 * Names for backwards compatibility with older versions of some PPP 549 * software; new software should use DLT_PPP_PPPD. 550 */ 551 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 552 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 553 554 /* 555 * Juniper-private data link type, as per request from 556 * Hannes Gredler <hannes@juniper.net>. The DLT_s are used 557 * for passing on chassis-internal metainformation such as 558 * QOS profiles, cookies, etc.. 559 */ 560 #define DLT_JUNIPER_PPPOE 167 561 #define DLT_JUNIPER_PPPOE_ATM 168 562 563 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 564 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 565 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 566 567 /* 568 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line 569 * monitoring equipment. 570 */ 571 #define DLT_GCOM_T1E1 172 572 #define DLT_GCOM_SERIAL 173 573 574 /* 575 * Juniper-private data link type, as per request from 576 * Hannes Gredler <hannes@juniper.net>. The DLT_ is used 577 * for internal communication to Physical Interface Cards (PIC) 578 */ 579 #define DLT_JUNIPER_PIC_PEER 174 580 581 /* 582 * Link types requested by Gregor Maier <gregor@endace.com> of Endace 583 * Measurement Systems. They add an ERF header (see 584 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 585 * the link-layer header. 586 */ 587 #define DLT_ERF_ETH 175 /* Ethernet */ 588 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 589 590 /* 591 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD 592 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 593 * includes additional information before the LAPD header, so it's 594 * not necessarily a generic LAPD header. 595 */ 596 #define DLT_LINUX_LAPD 177 597 598 /* 599 * Juniper-private data link type, as per request from 600 * Hannes Gredler <hannes@juniper.net>. 601 * The DLT_ are used for prepending meta-information 602 * like interface index, interface name 603 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 604 */ 605 #define DLT_JUNIPER_ETHER 178 606 #define DLT_JUNIPER_PPP 179 607 #define DLT_JUNIPER_FRELAY 180 608 #define DLT_JUNIPER_CHDLC 181 609 610 /* 611 * Multi Link Frame Relay (FRF.16) 612 */ 613 #define DLT_MFR 182 614 615 /* 616 * Juniper-private data link type, as per request from 617 * Hannes Gredler <hannes@juniper.net>. 618 * The DLT_ is used for internal communication with a 619 * voice Adapter Card (PIC) 620 */ 621 #define DLT_JUNIPER_VP 183 622 623 /* 624 * Arinc 429 frames. 625 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 626 * Every frame contains a 32bit A429 label. 627 * More documentation on Arinc 429 can be found at 628 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 629 */ 630 #define DLT_A429 184 631 632 /* 633 * Arinc 653 Interpartition Communication messages. 634 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 635 * Please refer to the A653-1 standard for more information. 636 */ 637 #define DLT_A653_ICM 185 638 639 /* 640 * USB packets, beginning with a USB setup header; requested by 641 * Paolo Abeni <paolo.abeni@email.it>. 642 */ 643 #define DLT_USB 186 644 645 /* 646 * Bluetooth HCI UART transport layer (part H:4); requested by 647 * Paolo Abeni. 648 */ 649 #define DLT_BLUETOOTH_HCI_H4 187 650 651 /* 652 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 653 * <cruz_petagay@bah.com>. 654 */ 655 #define DLT_IEEE802_16_MAC_CPS 188 656 657 /* 658 * USB packets, beginning with a Linux USB header; requested by 659 * Paolo Abeni <paolo.abeni@email.it>. 660 */ 661 #define DLT_USB_LINUX 189 662 663 /* 664 * Controller Area Network (CAN) v. 2.0B packets. 665 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 666 * Used to dump CAN packets coming from a CAN Vector board. 667 * More documentation on the CAN v2.0B frames can be found at 668 * http://www.can-cia.org/downloads/?269 669 */ 670 #define DLT_CAN20B 190 671 672 /* 673 * IEEE 802.15.4, with address fields padded, as is done by Linux 674 * drivers; requested by Juergen Schimmer. 675 */ 676 #define DLT_IEEE802_15_4_LINUX 191 677 678 /* 679 * Per Packet Information encapsulated packets. 680 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. 681 */ 682 #define DLT_PPI 192 683 684 /* 685 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 686 * requested by Charles Clancy. 687 */ 688 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 689 690 /* 691 * Juniper-private data link type, as per request from 692 * Hannes Gredler <hannes@juniper.net>. 693 * The DLT_ is used for internal communication with a 694 * integrated service module (ISM). 695 */ 696 #define DLT_JUNIPER_ISM 194 697 698 /* 699 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 700 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. 701 */ 702 #define DLT_IEEE802_15_4 195 703 704 /* 705 * Various link-layer types, with a pseudo-header, for SITA 706 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). 707 */ 708 #define DLT_SITA 196 709 710 /* 711 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 712 * encapsulates Endace ERF records. Requested by Stephen Donnelly 713 * <stephen@endace.com>. 714 */ 715 #define DLT_ERF 197 716 717 /* 718 * Special header prepended to Ethernet packets when capturing from a 719 * u10 Networks board. Requested by Phil Mulholland 720 * <phil@u10networks.com>. 721 */ 722 #define DLT_RAIF1 198 723 724 /* 725 * IPMB packet for IPMI, beginning with the I2C slave address, followed 726 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 727 * <chanthy.toeung@ca.kontron.com>. 728 */ 729 #define DLT_IPMB 199 730 731 /* 732 * Juniper-private data link type, as per request from 733 * Hannes Gredler <hannes@juniper.net>. 734 * The DLT_ is used for capturing data on a secure tunnel interface. 735 */ 736 #define DLT_JUNIPER_ST 200 737 738 /* 739 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 740 * that includes direction information; requested by Paolo Abeni. 741 */ 742 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 743 744 745 /* 746 * The instruction encodings. 747 */ 748 /* instruction classes */ 749 #define BPF_CLASS(code) ((code) & 0x07) 750 #define BPF_LD 0x00 751 #define BPF_LDX 0x01 752 #define BPF_ST 0x02 753 #define BPF_STX 0x03 754 #define BPF_ALU 0x04 755 #define BPF_JMP 0x05 756 #define BPF_RET 0x06 757 #define BPF_MISC 0x07 758 759 /* ld/ldx fields */ 760 #define BPF_SIZE(code) ((code) & 0x18) 761 #define BPF_W 0x00 762 #define BPF_H 0x08 763 #define BPF_B 0x10 764 #define BPF_MODE(code) ((code) & 0xe0) 765 #define BPF_IMM 0x00 766 #define BPF_ABS 0x20 767 #define BPF_IND 0x40 768 #define BPF_MEM 0x60 769 #define BPF_LEN 0x80 770 #define BPF_MSH 0xa0 771 772 /* alu/jmp fields */ 773 #define BPF_OP(code) ((code) & 0xf0) 774 #define BPF_ADD 0x00 775 #define BPF_SUB 0x10 776 #define BPF_MUL 0x20 777 #define BPF_DIV 0x30 778 #define BPF_OR 0x40 779 #define BPF_AND 0x50 780 #define BPF_LSH 0x60 781 #define BPF_RSH 0x70 782 #define BPF_NEG 0x80 783 #define BPF_JA 0x00 784 #define BPF_JEQ 0x10 785 #define BPF_JGT 0x20 786 #define BPF_JGE 0x30 787 #define BPF_JSET 0x40 788 #define BPF_SRC(code) ((code) & 0x08) 789 #define BPF_K 0x00 790 #define BPF_X 0x08 791 792 /* ret - BPF_K and BPF_X also apply */ 793 #define BPF_RVAL(code) ((code) & 0x18) 794 #define BPF_A 0x10 795 796 /* misc */ 797 #define BPF_MISCOP(code) ((code) & 0xf8) 798 #define BPF_TAX 0x00 799 #define BPF_TXA 0x80 800 801 /* 802 * The instruction data structure. 803 */ 804 struct bpf_insn { 805 u_short code; 806 u_char jt; 807 u_char jf; 808 bpf_int32 k; 809 }; 810 811 /* 812 * Macros for insn array initializers. 813 */ 814 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } 815 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } 816 817 #if __STDC__ || defined(__cplusplus) 818 extern int bpf_validate(struct bpf_insn *, int); 819 extern u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int); 820 #else 821 extern int bpf_validate(); 822 extern u_int bpf_filter(); 823 #endif 824 825 /* 826 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 827 */ 828 #define BPF_MEMWORDS 16 829 830 #ifdef __cplusplus 831 } 832 #endif 833 834 #endif 835