1 /* 2 * Copyright (c) 2000-2021 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * Copyright (c) 1990, 1991, 1993 30 * The Regents of the University of California. All rights reserved. 31 * 32 * This code is derived from the Stanford/CMU enet packet filter, 33 * (net/enet.c) distributed as part of 4.3BSD, and code contributed 34 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence 35 * Berkeley Laboratory. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)bpf.h 8.1 (Berkeley) 6/10/93 66 * @(#)bpf.h 1.34 (LBL) 6/16/96 67 * 68 * $FreeBSD: src/sys/net/bpf.h,v 1.21.2.3 2001/08/01 00:23:13 fenner Exp $ 69 */ 70 /* 71 * NOTICE: This file was modified by SPARTA, Inc. in 2006 to introduce 72 * support for mandatory and extensible security protections. This notice 73 * is included in support of clause 2.2 (b) of the Apple Public License, 74 * Version 2.0. 75 */ 76 77 #ifndef _NET_BPF_H_ 78 #define _NET_BPF_H_ 79 80 #include <stdint.h> 81 82 #if !defined(DRIVERKIT) 83 #include <sys/param.h> 84 #include <sys/appleapiopts.h> 85 #include <sys/types.h> 86 #include <sys/time.h> 87 #include <sys/cdefs.h> 88 89 #ifdef PRIVATE 90 #include <net/if_var.h> 91 #include <uuid/uuid.h> 92 93 struct bpf_setup_args { 94 uuid_t bsa_uuid; 95 char bsa_ifname[IFNAMSIZ]; 96 }; 97 #endif /* PRIVATE */ 98 99 #ifdef KERNEL 100 #include <sys/kernel_types.h> 101 102 #if !defined(__i386__) && !defined(__x86_64__) 103 #define BPF_ALIGN 1 104 #else /* defined(__i386__) || defined(__x86_64__) */ 105 #define BPF_ALIGN 0 106 #endif /* defined(__i386__) || defined(__x86_64__) */ 107 108 #if !BPF_ALIGN 109 #define EXTRACT_SHORT(p) ((u_int16_t)ntohs(*(u_int16_t *)(void *)p)) 110 #define EXTRACT_LONG(p) (ntohl(*(u_int32_t *)(void *)p)) 111 #else 112 #define EXTRACT_SHORT(p) \ 113 ((u_int16_t)\ 114 ((u_int16_t)*((u_char *)p+0)<<8|\ 115 (u_int16_t)*((u_char *)p+1)<<0)) 116 #define EXTRACT_LONG(p) \ 117 ((u_int32_t)*((u_char *)p+0)<<24|\ 118 (u_int32_t)*((u_char *)p+1)<<16|\ 119 (u_int32_t)*((u_char *)p+2)<<8|\ 120 (u_int32_t)*((u_char *)p+3)<<0) 121 #endif 122 123 #endif /* KERNEL */ 124 125 /* BSD style release date */ 126 #define BPF_RELEASE 199606 127 128 typedef int32_t bpf_int32; 129 typedef u_int32_t bpf_u_int32; 130 131 /* 132 * Alignment macros. BPF_WORDALIGN rounds up to the next 133 * even multiple of BPF_ALIGNMENT. 134 */ 135 #define BPF_ALIGNMENT sizeof(int32_t) 136 #define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1)) 137 138 #define BPF_MAXINSNS 512 139 #define BPF_MAXBUFSIZE 0x80000 140 #define BPF_MINBUFSIZE 32 141 142 /* 143 * Structure for BIOCSETF. 144 */ 145 struct bpf_program { 146 u_int bf_len; 147 struct bpf_insn *bf_insns; 148 }; 149 150 #ifdef KERNEL_PRIVATE 151 /* 152 * LP64 version of bpf_program. all pointers 153 * grow when we're dealing with a 64-bit process. 154 * WARNING - keep in sync with bpf_program 155 */ 156 struct bpf_program64 { 157 u_int bf_len; 158 user64_addr_t bf_insns __attribute__((aligned(8))); 159 }; 160 161 struct bpf_program32 { 162 u_int bf_len; 163 user32_addr_t bf_insns; 164 }; 165 #endif /* KERNEL_PRIVATE */ 166 167 /* 168 * Struct returned by BIOCGSTATS. 169 */ 170 struct bpf_stat { 171 u_int bs_recv; /* number of packets received */ 172 u_int bs_drop; /* number of packets dropped */ 173 }; 174 175 /* 176 * Struct return by BIOCVERSION. This represents the version number of 177 * the filter language described by the instruction encodings below. 178 * bpf understands a program iff kernel_major == filter_major && 179 * kernel_minor >= filter_minor, that is, if the value returned by the 180 * running kernel has the same major number and a minor number equal 181 * equal to or less than the filter being downloaded. Otherwise, the 182 * results are undefined, meaning an error may be returned or packets 183 * may be accepted haphazardly. 184 * It has nothing to do with the source code version. 185 */ 186 struct bpf_version { 187 u_short bv_major; 188 u_short bv_minor; 189 }; 190 #if defined(__LP64__) 191 #include <sys/_types/_timeval32.h> 192 193 #define BPF_TIMEVAL timeval32 194 #else 195 #define BPF_TIMEVAL timeval 196 #endif /* __LP64__ */ 197 /* Current version number of filter architecture. */ 198 #define BPF_MAJOR_VERSION 1 199 #define BPF_MINOR_VERSION 1 200 201 #define BIOCGBLEN _IOR('B',102, u_int) 202 #define BIOCSBLEN _IOWR('B',102, u_int) 203 #define BIOCSETF _IOW('B',103, struct bpf_program) 204 #ifdef KERNEL_PRIVATE 205 #define BIOCSETF64 _IOW('B',103, struct bpf_program64) 206 #define BIOCSETF32 _IOW('B',103, struct bpf_program32) 207 #endif /* KERNEL_PRIVATE */ 208 #define BIOCFLUSH _IO('B',104) 209 #define BIOCPROMISC _IO('B',105) 210 #define BIOCGDLT _IOR('B',106, u_int) 211 #define BIOCGETIF _IOR('B',107, struct ifreq) 212 #define BIOCSETIF _IOW('B',108, struct ifreq) 213 #define BIOCSRTIMEOUT _IOW('B',109, struct timeval) 214 #ifdef KERNEL_PRIVATE 215 #define BIOCSRTIMEOUT64 _IOW('B',109, struct user64_timeval) 216 #define BIOCSRTIMEOUT32 _IOW('B',109, struct user32_timeval) 217 #endif /* KERNEL_PRIVATE */ 218 #define BIOCGRTIMEOUT _IOR('B',110, struct timeval) 219 #ifdef KERNEL_PRIVATE 220 #define BIOCGRTIMEOUT64 _IOR('B',110, struct user64_timeval) 221 #define BIOCGRTIMEOUT32 _IOR('B',110, struct user32_timeval) 222 #endif /* KERNEL_PRIVATE */ 223 #define BIOCGSTATS _IOR('B',111, struct bpf_stat) 224 #define BIOCIMMEDIATE _IOW('B',112, u_int) 225 #define BIOCVERSION _IOR('B',113, struct bpf_version) 226 #define BIOCGRSIG _IOR('B',114, u_int) 227 #define BIOCSRSIG _IOW('B',115, u_int) 228 #define BIOCGHDRCMPLT _IOR('B',116, u_int) 229 #define BIOCSHDRCMPLT _IOW('B',117, u_int) 230 #define BIOCGSEESENT _IOR('B',118, u_int) 231 #define BIOCSSEESENT _IOW('B',119, u_int) 232 #define BIOCSDLT _IOW('B',120, u_int) 233 #define BIOCGDLTLIST _IOWR('B',121, struct bpf_dltlist) 234 #ifdef PRIVATE 235 #define BIOCGETTC _IOR('B', 122, int) 236 #define BIOCSETTC _IOW('B', 123, int) 237 #define BIOCSEXTHDR _IOW('B', 124, u_int) 238 #define BIOCGIFATTACHCOUNT _IOWR('B', 125, struct ifreq) 239 #endif /* PRIVATE */ 240 #define BIOCSETFNR _IOW('B', 126, struct bpf_program) 241 #ifdef KERNEL_PRIVATE 242 #define BIOCSETFNR64 _IOW('B',126, struct bpf_program64) 243 #define BIOCSETFNR32 _IOW('B',126, struct bpf_program32) 244 #endif /* KERNEL_PRIVATE */ 245 #ifdef PRIVATE 246 #define BIOCGWANTPKTAP _IOR('B', 127, u_int) 247 #define BIOCSWANTPKTAP _IOWR('B', 127, u_int) 248 #define BIOCSHEADDROP _IOW('B', 128, int) 249 #define BIOCGHEADDROP _IOR('B', 128, int) 250 #define BIOCSTRUNCATE _IOW('B', 129, u_int) 251 #define BIOCGETUUID _IOR('B', 130, uuid_t) 252 #define BIOCSETUP _IOW('B', 131, struct bpf_setup_args) 253 #define BIOCSPKTHDRV2 _IOW('B', 132, int) 254 #define BIOCGPKTHDRV2 _IOW('B', 133, int) 255 #endif /* PRIVATE */ 256 /* 257 * Structure prepended to each packet. 258 */ 259 struct bpf_hdr { 260 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 261 bpf_u_int32 bh_caplen; /* length of captured portion */ 262 bpf_u_int32 bh_datalen; /* original length of packet */ 263 u_short bh_hdrlen; /* length of bpf header (this struct 264 * plus alignment padding) */ 265 }; 266 #ifdef KERNEL 267 /* 268 * Because the structure above is not a multiple of 4 bytes, some compilers 269 * will insist on inserting padding; hence, sizeof(struct bpf_hdr) won't work. 270 * Only the kernel needs to know about it; applications use bh_hdrlen. 271 */ 272 #define SIZEOF_BPF_HDR (sizeof(struct bpf_hdr) <= 20 ? 18 : \ 273 sizeof(struct bpf_hdr)) 274 #endif 275 #ifdef PRIVATE 276 /* 277 * This structure must be a multiple of 4 bytes. 278 * It includes padding and spare fields that we can use later if desired. 279 */ 280 struct bpf_hdr_ext { 281 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 282 bpf_u_int32 bh_caplen; /* length of captured portion */ 283 bpf_u_int32 bh_datalen; /* original length of packet */ 284 u_short bh_hdrlen; /* length of bpf header */ 285 u_short bh_flags; 286 #define BPF_HDR_EXT_FLAGS_DIR_IN 0x0000 287 #define BPF_HDR_EXT_FLAGS_DIR_OUT 0x0001 288 pid_t bh_pid; /* process PID */ 289 char bh_comm[MAXCOMLEN + 1]; /* process command */ 290 u_char _bh_pad2[1]; 291 u_char bh_pktflags; 292 #define BPF_PKTFLAGS_TCP_REXMT 0x01 293 #define BPF_PKTFLAGS_START_SEQ 0x02 294 #define BPF_PKTFLAGS_LAST_PKT 0x04 295 #define BPF_PKTFLAGS_WAKE_PKT 0x08 296 u_char bh_proto; /* kernel reserved; 0 in userland */ 297 bpf_u_int32 bh_svc; /* service class */ 298 bpf_u_int32 bh_flowid; /* kernel reserved; 0 in userland */ 299 bpf_u_int32 bh_unsent_bytes; /* unsent bytes at interface */ 300 bpf_u_int32 bh_unsent_snd; /* unsent bytes at socket buffer */ 301 }; 302 303 #define BPF_CONTROL_NAME "com.apple.net.bpf" 304 305 struct bpf_mtag { 306 char bt_comm[MAXCOMLEN]; 307 pid_t bt_pid; 308 bpf_u_int32 bt_svc; 309 unsigned char bt_direction; 310 #define BPF_MTAG_DIR_IN 0 311 #define BPF_MTAG_DIR_OUT 1 312 }; 313 314 #endif /* PRIVATE */ 315 #endif /* !defined(DRIVERKIT) */ 316 317 /* 318 * Data-link level type codes. 319 */ 320 #define DLT_NULL 0 /* no link-layer encapsulation */ 321 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 322 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 323 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 324 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 325 #define DLT_CHAOS 5 /* Chaos */ 326 #define DLT_IEEE802 6 /* IEEE 802 Networks */ 327 #define DLT_ARCNET 7 /* ARCNET */ 328 #define DLT_SLIP 8 /* Serial Line IP */ 329 #define DLT_PPP 9 /* Point-to-point Protocol */ 330 #define DLT_FDDI 10 /* FDDI */ 331 #define DLT_ATM_RFC1483 11 /* LLC/SNAP encapsulated atm */ 332 #define DLT_RAW 12 /* raw IP */ 333 334 /* 335 * These are values from BSD/OS's "bpf.h". 336 * These are not the same as the values from the traditional libpcap 337 * "bpf.h"; however, these values shouldn't be generated by any 338 * OS other than BSD/OS, so the correct values to use here are the 339 * BSD/OS values. 340 * 341 * Platforms that have already assigned these values to other 342 * DLT_ codes, however, should give these codes the values 343 * from that platform, so that programs that use these codes will 344 * continue to compile - even though they won't correctly read 345 * files of these types. 346 */ 347 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 348 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 349 350 /* 351 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is. 352 * 353 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG 354 * as 117 so that pflog captures would use a link-layer header type 355 * value that didn't collide with any other values. On all 356 * platforms other than OpenBSD, we defined DLT_PFLOG as 117, 357 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG. 358 * 359 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well. 360 * 361 * Don't use 17 for anything else. 362 */ 363 364 /* 365 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and 366 * Mac OS X; don't use it for anything else. (FreeBSD uses 121, 367 * which collides with DLT_HHDLC, even though it doesn't use 18 368 * for anything and doesn't appear to have ever used it for anything.) 369 * 370 * We define it as 18 on those platforms; it is, unfortunately, used 371 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC 372 * in general. As the packet format for it, like that for 373 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent, 374 * we don't support printing it in tcpdump except on OSes that 375 * have the relevant header files, so it's not that useful on 376 * other platforms. 377 */ 378 #define DLT_PFSYNC 18 /* Packet filter state syncing */ 379 380 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 381 382 /* 383 * These values are defined by NetBSD; other platforms should refrain from 384 * using them for other purposes, so that NetBSD savefiles with link 385 * types of 50 or 51 can be read as this type on all platforms. 386 */ 387 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 388 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 389 390 /* 391 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 392 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 393 * header has 6 bytes of unknown data, something that appears to be an 394 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 395 * I've seen. 396 */ 397 #define DLT_SYMANTEC_FIREWALL 99 398 399 /* 400 * Values between 100 and 103 are used in capture file headers as 401 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 402 * that differ between platforms; don't use those values for new DLT_ 403 * new types. 404 */ 405 406 /* 407 * Values starting with 104 are used for newly-assigned link-layer 408 * header type values; for those link-layer header types, the DLT_ 409 * value returned by pcap_datalink() and passed to pcap_open_dead(), 410 * and the LINKTYPE_ value that appears in capture files, are the 411 * same. 412 * 413 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 414 * the highest such value. 415 */ 416 #define DLT_MATCHING_MIN 104 417 418 /* 419 * This value was defined by libpcap 0.5; platforms that have defined 420 * it with a different value should define it here with that value - 421 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 422 * whatever value that happens to be, so programs will correctly 423 * handle files with that link type regardless of the value of 424 * DLT_C_HDLC. 425 * 426 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 427 * compatibility with programs written for BSD/OS. 428 * 429 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 430 * for source compatibility with programs written for libpcap 0.5. 431 */ 432 #define DLT_C_HDLC 104 /* Cisco HDLC */ 433 #define DLT_CHDLC DLT_C_HDLC 434 435 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 436 437 /* 438 * Values between 106 and 107 are used in capture file headers as 439 * link-layer types corresponding to DLT_ types that might differ 440 * between platforms; don't use those values for new DLT_ new types. 441 */ 442 443 /* 444 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 445 * with other values. 446 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 447 * (DLCI, etc.). 448 */ 449 #define DLT_FRELAY 107 450 451 /* 452 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 453 * that the AF_ type in the link-layer header is in network byte order. 454 * 455 * OpenBSD defines it as 12, but that collides with DLT_RAW, so we 456 * define it as 108 here. If OpenBSD picks up this file, it should 457 * define DLT_LOOP as 12 in its version, as per the comment above - 458 * and should not use 108 for any purpose. 459 */ 460 #define DLT_LOOP 108 461 462 /* 463 * Values between 109 and 112 are used in capture file headers as 464 * link-layer types corresponding to DLT_ types that might differ 465 * between platforms; don't use those values for new DLT_ new types. 466 */ 467 468 /* 469 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 470 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 471 * than OpenBSD. 472 */ 473 #define DLT_ENC 109 474 475 /* 476 * This is for Linux cooked sockets. 477 */ 478 #define DLT_LINUX_SLL 113 479 480 /* 481 * Apple LocalTalk hardware. 482 */ 483 #define DLT_LTALK 114 484 485 /* 486 * Acorn Econet. 487 */ 488 #define DLT_ECONET 115 489 490 /* 491 * Reserved for use with OpenBSD ipfilter. 492 */ 493 #define DLT_IPFILTER 116 494 495 /* 496 * For use in capture-file headers as a link-layer type corresponding 497 * to OpenBSD PF (Packet Filter) log. 498 */ 499 #define DLT_PFLOG 117 500 501 /* 502 * Registered for Cisco-internal use. 503 */ 504 #define DLT_CISCO_IOS 118 505 506 /* 507 * Reserved for 802.11 cards using the Prism II chips, with a link-layer 508 * header including Prism monitor mode information plus an 802.11 509 * header. 510 */ 511 #define DLT_PRISM_HEADER 119 512 513 /* 514 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 515 * (see Doug Ambrisko's FreeBSD patches). 516 */ 517 #define DLT_AIRONET_HEADER 120 518 519 /* 520 * Reserved for Siemens HiPath HDLC. XXX 521 */ 522 #define DLT_HHDLC 121 523 524 /* 525 * Reserved for RFC 2625 IP-over-Fibre Channel. 526 */ 527 #define DLT_IP_OVER_FC 122 528 529 /* 530 * Reserved for Full Frontal ATM on Solaris. 531 */ 532 #define DLT_SUNATM 123 533 534 /* 535 * Reserved as per request from Kent Dahlgren <[email protected]> 536 * for private use. 537 */ 538 #define DLT_RIO 124 /* RapidIO */ 539 #define DLT_PCI_EXP 125 /* PCI Express */ 540 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 541 542 /* 543 * BSD header for 802.11 plus a number of bits of link-layer information 544 * including radio information. 545 */ 546 #ifndef DLT_IEEE802_11_RADIO 547 #define DLT_IEEE802_11_RADIO 127 548 #endif 549 550 /* 551 * Reserved for TZSP encapsulation. 552 */ 553 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 554 555 /* 556 * Reserved for Linux ARCNET. 557 */ 558 #define DLT_ARCNET_LINUX 129 559 560 /* 561 * Juniper-private data link types. 562 */ 563 #define DLT_JUNIPER_MLPPP 130 564 #define DLT_JUNIPER_MLFR 131 565 #define DLT_JUNIPER_ES 132 566 #define DLT_JUNIPER_GGSN 133 567 #define DLT_JUNIPER_MFR 134 568 #define DLT_JUNIPER_ATM2 135 569 #define DLT_JUNIPER_SERVICES 136 570 #define DLT_JUNIPER_ATM1 137 571 572 /* 573 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 574 * <[email protected]>. The header that's presented is an Ethernet-like 575 * header: 576 * 577 * #define FIREWIRE_EUI64_LEN 8 578 * struct firewire_header { 579 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 580 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 581 * u_short firewire_type; 582 * }; 583 * 584 * with "firewire_type" being an Ethernet type value, rather than, 585 * for example, raw GASP frames being handed up. 586 */ 587 #define DLT_APPLE_IP_OVER_IEEE1394 138 588 589 /* 590 * Various SS7 encapsulations, as per a request from Jeff Morriss 591 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 592 */ 593 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 594 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 595 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 596 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 597 598 /* 599 * Reserved for DOCSIS. 600 */ 601 #define DLT_DOCSIS 143 602 603 /* 604 * Reserved for Linux IrDA. 605 */ 606 #define DLT_LINUX_IRDA 144 607 608 /* 609 * Reserved for IBM SP switch and IBM Next Federation switch. 610 */ 611 #define DLT_IBM_SP 145 612 #define DLT_IBM_SN 146 613 614 /* 615 * Reserved for private use. If you have some link-layer header type 616 * that you want to use within your organization, with the capture files 617 * using that link-layer header type not ever be sent outside your 618 * organization, you can use these values. 619 * 620 * No libpcap release will use these for any purpose, nor will any 621 * tcpdump release use them, either. 622 * 623 * Do *NOT* use these in capture files that you expect anybody not using 624 * your private versions of capture-file-reading tools to read; in 625 * particular, do *NOT* use them in products, otherwise you may find that 626 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 627 * read capture files from your firewall/intrusion detection/traffic 628 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 629 * and you may also find that the developers of those applications will 630 * not accept patches to let them read those files. 631 * 632 * Also, do not use them if somebody might send you a capture using them 633 * for *their* private type and tools using them for *your* private type 634 * would have to read them. 635 * 636 * Instead, ask "[email protected]" for a new DLT_ value, 637 * as per the comment above, and use the type you're given. 638 */ 639 #define DLT_USER0 147 640 #define DLT_USER1 148 641 #define DLT_USER2 149 642 #define DLT_USER3 150 643 #define DLT_USER4 151 644 #define DLT_USER5 152 645 #define DLT_USER6 153 646 #define DLT_USER7 154 647 #define DLT_USER8 155 648 #define DLT_USER9 156 649 #define DLT_USER10 157 650 #define DLT_USER11 158 651 #define DLT_USER12 159 652 #define DLT_USER13 160 653 #define DLT_USER14 161 654 #define DLT_USER15 162 655 656 #ifdef PRIVATE 657 /* 658 * For Apple private usage 659 */ 660 #define DLT_USER0_APPLE_INTERNAL DLT_USER0 /* rdar://12019509 */ 661 #define DLT_USER1_APPLE_INTERNAL DLT_USER1 /* rdar://12019509 */ 662 #define DLT_PKTAP DLT_USER2 /* rdar://11779467 */ 663 #define DLT_USER3_APPLE_INTERNAL DLT_USER3 /* rdar://19614531 */ 664 #define DLT_USER4_APPLE_INTERNAL DLT_USER4 /* rdar://19614531 */ 665 #endif /* PRIVATE */ 666 667 /* 668 * For future use with 802.11 captures - defined by AbsoluteValue 669 * Systems to store a number of bits of link-layer information 670 * including radio information: 671 * 672 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 673 * 674 * but it might be used by some non-AVS drivers now or in the 675 * future. 676 */ 677 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 678 679 /* 680 * Juniper-private data link type, as per request from 681 * Hannes Gredler <[email protected]>. The DLT_s are used 682 * for passing on chassis-internal metainformation such as 683 * QOS profiles, etc.. 684 */ 685 #define DLT_JUNIPER_MONITOR 164 686 687 /* 688 * Reserved for BACnet MS/TP. 689 */ 690 #define DLT_BACNET_MS_TP 165 691 692 /* 693 * Another PPP variant as per request from Karsten Keil <[email protected]>. 694 * 695 * This is used in some OSes to allow a kernel socket filter to distinguish 696 * between incoming and outgoing packets, on a socket intended to 697 * supply pppd with outgoing packets so it can do dial-on-demand and 698 * hangup-on-lack-of-demand; incoming packets are filtered out so they 699 * don't cause pppd to hold the connection up (you don't want random 700 * input packets such as port scans, packets from old lost connections, 701 * etc. to force the connection to stay up). 702 * 703 * The first byte of the PPP header (0xff03) is modified to accomodate 704 * the direction - 0x00 = IN, 0x01 = OUT. 705 */ 706 #define DLT_PPP_PPPD 166 707 708 /* 709 * Names for backwards compatibility with older versions of some PPP 710 * software; new software should use DLT_PPP_PPPD. 711 */ 712 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 713 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 714 715 /* 716 * Juniper-private data link type, as per request from 717 * Hannes Gredler <[email protected]>. The DLT_s are used 718 * for passing on chassis-internal metainformation such as 719 * QOS profiles, cookies, etc.. 720 */ 721 #define DLT_JUNIPER_PPPOE 167 722 #define DLT_JUNIPER_PPPOE_ATM 168 723 724 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 725 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 726 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 727 728 /* 729 * Requested by Oolan Zimmer <[email protected]> for use in Gcom's T1/E1 line 730 * monitoring equipment. 731 */ 732 #define DLT_GCOM_T1E1 172 733 #define DLT_GCOM_SERIAL 173 734 735 /* 736 * Juniper-private data link type, as per request from 737 * Hannes Gredler <[email protected]>. The DLT_ is used 738 * for internal communication to Physical Interface Cards (PIC) 739 */ 740 #define DLT_JUNIPER_PIC_PEER 174 741 742 /* 743 * Link types requested by Gregor Maier <[email protected]> of Endace 744 * Measurement Systems. They add an ERF header (see 745 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 746 * the link-layer header. 747 */ 748 #define DLT_ERF_ETH 175 /* Ethernet */ 749 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 750 751 /* 752 * Requested by Daniele Orlandi <[email protected]> for raw LAPD 753 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 754 * includes additional information before the LAPD header, so it's 755 * not necessarily a generic LAPD header. 756 */ 757 #define DLT_LINUX_LAPD 177 758 759 /* 760 * Juniper-private data link type, as per request from 761 * Hannes Gredler <[email protected]>. 762 * The DLT_ are used for prepending meta-information 763 * like interface index, interface name 764 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 765 */ 766 #define DLT_JUNIPER_ETHER 178 767 #define DLT_JUNIPER_PPP 179 768 #define DLT_JUNIPER_FRELAY 180 769 #define DLT_JUNIPER_CHDLC 181 770 771 /* 772 * Multi Link Frame Relay (FRF.16) 773 */ 774 #define DLT_MFR 182 775 776 /* 777 * Juniper-private data link type, as per request from 778 * Hannes Gredler <[email protected]>. 779 * The DLT_ is used for internal communication with a 780 * voice Adapter Card (PIC) 781 */ 782 #define DLT_JUNIPER_VP 183 783 784 /* 785 * Arinc 429 frames. 786 * DLT_ requested by Gianluca Varenni <[email protected]>. 787 * Every frame contains a 32bit A429 label. 788 * More documentation on Arinc 429 can be found at 789 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 790 */ 791 #define DLT_A429 184 792 793 /* 794 * Arinc 653 Interpartition Communication messages. 795 * DLT_ requested by Gianluca Varenni <[email protected]>. 796 * Please refer to the A653-1 standard for more information. 797 */ 798 #define DLT_A653_ICM 185 799 800 /* 801 * USB packets, beginning with a USB setup header; requested by 802 * Paolo Abeni <[email protected]>. 803 */ 804 #define DLT_USB 186 805 806 /* 807 * Bluetooth HCI UART transport layer (part H:4); requested by 808 * Paolo Abeni. 809 */ 810 #define DLT_BLUETOOTH_HCI_H4 187 811 812 /* 813 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 814 * <[email protected]>. 815 */ 816 #define DLT_IEEE802_16_MAC_CPS 188 817 818 /* 819 * USB packets, beginning with a Linux USB header; requested by 820 * Paolo Abeni <[email protected]>. 821 */ 822 #define DLT_USB_LINUX 189 823 824 /* 825 * Controller Area Network (CAN) v. 2.0B packets. 826 * DLT_ requested by Gianluca Varenni <[email protected]>. 827 * Used to dump CAN packets coming from a CAN Vector board. 828 * More documentation on the CAN v2.0B frames can be found at 829 * http://www.can-cia.org/downloads/?269 830 */ 831 #define DLT_CAN20B 190 832 833 /* 834 * IEEE 802.15.4, with address fields padded, as is done by Linux 835 * drivers; requested by Juergen Schimmer. 836 */ 837 #define DLT_IEEE802_15_4_LINUX 191 838 839 /* 840 * Per Packet Information encapsulated packets. 841 * DLT_ requested by Gianluca Varenni <[email protected]>. 842 */ 843 #define DLT_PPI 192 844 845 /* 846 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 847 * requested by Charles Clancy. 848 */ 849 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 850 851 /* 852 * Juniper-private data link type, as per request from 853 * Hannes Gredler <[email protected]>. 854 * The DLT_ is used for internal communication with a 855 * integrated service module (ISM). 856 */ 857 #define DLT_JUNIPER_ISM 194 858 859 /* 860 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 861 * nothing); requested by Mikko Saarnivala <[email protected]>. 862 */ 863 #define DLT_IEEE802_15_4 195 864 865 /* 866 * Various link-layer types, with a pseudo-header, for SITA 867 * (http://www.sita.aero/); requested by Fulko Hew ([email protected]). 868 */ 869 #define DLT_SITA 196 870 871 /* 872 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 873 * encapsulates Endace ERF records. Requested by Stephen Donnelly 874 * <[email protected]>. 875 */ 876 #define DLT_ERF 197 877 878 /* 879 * Special header prepended to Ethernet packets when capturing from a 880 * u10 Networks board. Requested by Phil Mulholland 881 * <[email protected]>. 882 */ 883 #define DLT_RAIF1 198 884 885 /* 886 * IPMB packet for IPMI, beginning with the I2C slave address, followed 887 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 888 * <[email protected]>. 889 */ 890 #define DLT_IPMB 199 891 892 /* 893 * Juniper-private data link type, as per request from 894 * Hannes Gredler <[email protected]>. 895 * The DLT_ is used for capturing data on a secure tunnel interface. 896 */ 897 #define DLT_JUNIPER_ST 200 898 899 /* 900 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 901 * that includes direction information; requested by Paolo Abeni. 902 */ 903 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 904 905 /* 906 * AX.25 packet with a 1-byte KISS header; see 907 * 908 * http://www.ax25.net/kiss.htm 909 * 910 * as per Richard Stearn <[email protected]>. 911 */ 912 #define DLT_AX25_KISS 202 913 914 /* 915 * LAPD packets from an ISDN channel, starting with the address field, 916 * with no pseudo-header. 917 * Requested by Varuna De Silva <[email protected]>. 918 */ 919 #define DLT_LAPD 203 920 921 /* 922 * Variants of various link-layer headers, with a one-byte direction 923 * pseudo-header prepended - zero means "received by this host", 924 * non-zero (any non-zero value) means "sent by this host" - as per 925 * Will Barker <[email protected]>. 926 */ 927 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */ 928 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */ 929 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */ 930 #define DLT_LAPB_WITH_DIR 207 /* LAPB */ 931 932 /* 933 * 208 is reserved for an as-yet-unspecified proprietary link-layer 934 * type, as requested by Will Barker. 935 */ 936 937 /* 938 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 939 * <[email protected]>. 940 */ 941 #define DLT_IPMB_LINUX 209 942 943 /* 944 * FlexRay automotive bus - http://www.flexray.com/ - as requested 945 * by Hannes Kaelber <[email protected]>. 946 */ 947 #define DLT_FLEXRAY 210 948 949 /* 950 * Media Oriented Systems Transport (MOST) bus for multimedia 951 * transport - http://www.mostcooperation.com/ - as requested 952 * by Hannes Kaelber <[email protected]>. 953 */ 954 #define DLT_MOST 211 955 956 /* 957 * Local Interconnect Network (LIN) bus for vehicle networks - 958 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 959 * <[email protected]>. 960 */ 961 #define DLT_LIN 212 962 963 /* 964 * X2E-private data link type used for serial line capture, 965 * as requested by Hannes Kaelber <[email protected]>. 966 */ 967 #define DLT_X2E_SERIAL 213 968 969 /* 970 * X2E-private data link type used for the Xoraya data logger 971 * family, as requested by Hannes Kaelber <[email protected]>. 972 */ 973 #define DLT_X2E_XORAYA 214 974 975 /* 976 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 977 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 978 * of 0 as preamble, one octet of SFD, one octet of frame length+ 979 * reserved bit, and then the MAC-layer data, starting with the 980 * frame control field). 981 * 982 * Requested by Max Filippov <[email protected]>. 983 */ 984 #define DLT_IEEE802_15_4_NONASK_PHY 215 985 986 /* 987 * David Gibson <[email protected]> requested this for 988 * captures from the Linux kernel /dev/input/eventN devices. This 989 * is used to communicate keystrokes and mouse movements from the 990 * Linux kernel to display systems, such as Xorg. 991 */ 992 #define DLT_LINUX_EVDEV 216 993 994 /* 995 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 996 * 997 * Requested by Harald Welte <[email protected]>. 998 */ 999 #define DLT_GSMTAP_UM 217 1000 #define DLT_GSMTAP_ABIS 218 1001 1002 /* 1003 * MPLS, with an MPLS label as the link-layer header. 1004 * Requested by Michele Marchetto <[email protected]> on behalf 1005 * of OpenBSD. 1006 */ 1007 #define DLT_MPLS 219 1008 1009 /* 1010 * USB packets, beginning with a Linux USB header, with the USB header 1011 * padded to 64 bytes; required for memory-mapped access. 1012 */ 1013 #define DLT_USB_LINUX_MMAPPED 220 1014 1015 /* 1016 * DECT packets, with a pseudo-header; requested by 1017 * Matthias Wenzel <[email protected]>. 1018 */ 1019 #define DLT_DECT 221 1020 1021 /* 1022 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <[email protected]> 1023 * Date: Mon, 11 May 2009 11:18:30 -0500 1024 * 1025 * DLT_AOS. We need it for AOS Space Data Link Protocol. 1026 * I have already written dissectors for but need an OK from 1027 * legal before I can submit a patch. 1028 * 1029 */ 1030 #define DLT_AOS 222 1031 1032 /* 1033 * Wireless HART (Highway Addressable Remote Transducer) 1034 * From the HART Communication Foundation 1035 * IES/PAS 62591 1036 * 1037 * Requested by Sam Roberts <[email protected]>. 1038 */ 1039 #define DLT_WIHART 223 1040 1041 /* 1042 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 1043 * Requested by Kahou Lei <[email protected]>. 1044 */ 1045 #define DLT_FC_2 224 1046 1047 /* 1048 * Fibre Channel FC-2 frames, beginning with an encoding of the 1049 * SOF, and ending with an encoding of the EOF. 1050 * 1051 * The encodings represent the frame delimiters as 4-byte sequences 1052 * representing the corresponding ordered sets, with K28.5 1053 * represented as 0xBC, and the D symbols as the corresponding 1054 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 1055 * is represented as 0xBC 0xB5 0x55 0x55. 1056 * 1057 * Requested by Kahou Lei <[email protected]>. 1058 */ 1059 #define DLT_FC_2_WITH_FRAME_DELIMS 225 1060 1061 /* 1062 * Solaris ipnet pseudo-header; requested by Darren Reed <[email protected]>. 1063 * 1064 * The pseudo-header starts with a one-byte version number; for version 2, 1065 * the pseudo-header is: 1066 * 1067 * struct dl_ipnetinfo { 1068 * u_int8_t dli_version; 1069 * u_int8_t dli_family; 1070 * u_int16_t dli_htype; 1071 * u_int32_t dli_pktlen; 1072 * u_int32_t dli_ifindex; 1073 * u_int32_t dli_grifindex; 1074 * u_int32_t dli_zsrc; 1075 * u_int32_t dli_zdst; 1076 * }; 1077 * 1078 * dli_version is 2 for the current version of the pseudo-header. 1079 * 1080 * dli_family is a Solaris address family value, so it's 2 for IPv4 1081 * and 26 for IPv6. 1082 * 1083 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 1084 * packets, and 2 for packets arriving from another zone on the same 1085 * machine. 1086 * 1087 * dli_pktlen is the length of the packet data following the pseudo-header 1088 * (so the captured length minus dli_pktlen is the length of the 1089 * pseudo-header, assuming the entire pseudo-header was captured). 1090 * 1091 * dli_ifindex is the interface index of the interface on which the 1092 * packet arrived. 1093 * 1094 * dli_grifindex is the group interface index number (for IPMP interfaces). 1095 * 1096 * dli_zsrc is the zone identifier for the source of the packet. 1097 * 1098 * dli_zdst is the zone identifier for the destination of the packet. 1099 * 1100 * A zone number of 0 is the global zone; a zone number of 0xffffffff 1101 * means that the packet arrived from another host on the network, not 1102 * from another zone on the same machine. 1103 * 1104 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 1105 * which of those it is. 1106 */ 1107 #define DLT_IPNET 226 1108 1109 /* 1110 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 1111 * by Linux SocketCAN. See Documentation/networking/can.txt in the Linux 1112 * source. 1113 * 1114 * Requested by Felix Obenhuber <[email protected]>. 1115 */ 1116 #define DLT_CAN_SOCKETCAN 227 1117 1118 /* 1119 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 1120 * whether it's v4 or v6. Requested by Darren Reed <[email protected]>. 1121 */ 1122 #define DLT_IPV4 228 1123 #define DLT_IPV6 229 1124 1125 /* 1126 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1127 * nothing), and with no FCS at the end of the frame; requested by 1128 * Jon Smirl <[email protected]>. 1129 */ 1130 #define DLT_IEEE802_15_4_NOFCS 230 1131 1132 /* 1133 * Raw D-Bus: 1134 * 1135 * http://www.freedesktop.org/wiki/Software/dbus 1136 * 1137 * messages: 1138 * 1139 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 1140 * 1141 * starting with the endianness flag, followed by the message type, etc., 1142 * but without the authentication handshake before the message sequence: 1143 * 1144 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1145 * 1146 * Requested by Martin Vidner <[email protected]>. 1147 */ 1148 #define DLT_DBUS 231 1149 1150 /* 1151 * Juniper-private data link type, as per request from 1152 * Hannes Gredler <[email protected]>. 1153 */ 1154 #define DLT_JUNIPER_VS 232 1155 #define DLT_JUNIPER_SRX_E2E 233 1156 #define DLT_JUNIPER_FIBRECHANNEL 234 1157 1158 /* 1159 * DVB-CI (DVB Common Interface for communication between a PC Card 1160 * module and a DVB receiver). See 1161 * 1162 * http://www.kaiser.cx/pcap-dvbci.html 1163 * 1164 * for the specification. 1165 * 1166 * Requested by Martin Kaiser <[email protected]>. 1167 */ 1168 #define DLT_DVB_CI 235 1169 1170 /* 1171 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1172 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1173 * <[email protected]>. 1174 */ 1175 #define DLT_MUX27010 236 1176 1177 /* 1178 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1179 * <[email protected]>. 1180 */ 1181 #define DLT_STANAG_5066_D_PDU 237 1182 1183 /* 1184 * Juniper-private data link type, as per request from 1185 * Hannes Gredler <[email protected]>. 1186 */ 1187 #define DLT_JUNIPER_ATM_CEMIC 238 1188 1189 /* 1190 * NetFilter LOG messages 1191 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1192 * 1193 * Requested by Jakub Zawadzki <[email protected]> 1194 */ 1195 #define DLT_NFLOG 239 1196 1197 /* 1198 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1199 * for Ethernet packets with a 4-byte pseudo-header and always 1200 * with the payload including the FCS, as supplied by their 1201 * netANALYZER hardware and software. 1202 * 1203 * Requested by Holger P. Frommer <[email protected]> 1204 */ 1205 #define DLT_NETANALYZER 240 1206 1207 /* 1208 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1209 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1210 * with the Ethernet header preceded by 7 bytes of preamble and 1211 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1212 * software. 1213 * 1214 * Requested by Holger P. Frommer <[email protected]> 1215 */ 1216 #define DLT_NETANALYZER_TRANSPARENT 241 1217 1218 /* 1219 * IP-over-Infiniband, as specified by RFC 4391. 1220 * 1221 * Requested by Petr Sumbera <[email protected]>. 1222 */ 1223 #define DLT_IPOIB 242 1224 1225 /* 1226 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0). 1227 * 1228 * Requested by Guy Martin <[email protected]>. 1229 */ 1230 #define DLT_MPEG_2_TS 243 1231 1232 /* 1233 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as 1234 * used by their ng40 protocol tester. 1235 * 1236 * Requested by Jens Grimmer <[email protected]>. 1237 */ 1238 #define DLT_NG40 244 1239 1240 /* 1241 * Pseudo-header giving adapter number and flags, followed by an NFC 1242 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU, 1243 * as specified by NFC Forum Logical Link Control Protocol Technical 1244 * Specification LLCP 1.1. 1245 * 1246 * Requested by Mike Wakerly <[email protected]>. 1247 */ 1248 #define DLT_NFC_LLCP 245 1249 1250 /* 1251 * USB packets, beginning with a Darwin (macOS, etc.) USB header. 1252 */ 1253 #define DLT_USB_DARWIN 266 1254 1255 #define DLT_MATCHING_MAX 266 /* highest value in the "matching" range */ 1256 1257 #if !defined(DRIVERKIT) 1258 /* 1259 * The instruction encodings. 1260 */ 1261 /* instruction classes */ 1262 #define BPF_CLASS(code) ((code) & 0x07) 1263 #define BPF_LD 0x00 1264 #define BPF_LDX 0x01 1265 #define BPF_ST 0x02 1266 #define BPF_STX 0x03 1267 #define BPF_ALU 0x04 1268 #define BPF_JMP 0x05 1269 #define BPF_RET 0x06 1270 #define BPF_MISC 0x07 1271 1272 /* ld/ldx fields */ 1273 #define BPF_SIZE(code) ((code) & 0x18) 1274 #define BPF_W 0x00 1275 #define BPF_H 0x08 1276 #define BPF_B 0x10 1277 #define BPF_MODE(code) ((code) & 0xe0) 1278 #define BPF_IMM 0x00 1279 #define BPF_ABS 0x20 1280 #define BPF_IND 0x40 1281 #define BPF_MEM 0x60 1282 #define BPF_LEN 0x80 1283 #define BPF_MSH 0xa0 1284 1285 /* alu/jmp fields */ 1286 #define BPF_OP(code) ((code) & 0xf0) 1287 #define BPF_ADD 0x00 1288 #define BPF_SUB 0x10 1289 #define BPF_MUL 0x20 1290 #define BPF_DIV 0x30 1291 #define BPF_OR 0x40 1292 #define BPF_AND 0x50 1293 #define BPF_LSH 0x60 1294 #define BPF_RSH 0x70 1295 #define BPF_NEG 0x80 1296 #define BPF_JA 0x00 1297 #define BPF_JEQ 0x10 1298 #define BPF_JGT 0x20 1299 #define BPF_JGE 0x30 1300 #define BPF_JSET 0x40 1301 #define BPF_SRC(code) ((code) & 0x08) 1302 #define BPF_K 0x00 1303 #define BPF_X 0x08 1304 1305 /* ret - BPF_K and BPF_X also apply */ 1306 #define BPF_RVAL(code) ((code) & 0x18) 1307 #define BPF_A 0x10 1308 1309 /* misc */ 1310 #define BPF_MISCOP(code) ((code) & 0xf8) 1311 #define BPF_TAX 0x00 1312 #define BPF_TXA 0x80 1313 1314 /* 1315 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 1316 */ 1317 #define BPF_MEMWORDS 16 1318 1319 /* 1320 * The instruction data structure. 1321 */ 1322 struct bpf_insn { 1323 u_short code; 1324 u_char jt; 1325 u_char jf; 1326 bpf_u_int32 k; 1327 }; 1328 1329 /* 1330 * Macros for insn array initializers. 1331 */ 1332 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } 1333 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } 1334 1335 #pragma pack(4) 1336 1337 /* 1338 * Structure to retrieve available DLTs for the interface. 1339 */ 1340 struct bpf_dltlist { 1341 u_int32_t bfl_len; /* number of bfd_list array */ 1342 union { 1343 u_int32_t *bflu_list; /* array of DLTs */ 1344 u_int64_t bflu_pad; 1345 } bfl_u; 1346 }; 1347 #define bfl_list bfl_u.bflu_list 1348 1349 #pragma pack() 1350 1351 #ifdef KERNEL_PRIVATE 1352 #define BPF_MIN_PKT_SIZE 40 1353 #define PORT_DNS 53 1354 #define PORT_BOOTPS 67 1355 #define PORT_BOOTPC 68 1356 #define PORT_ISAKMP 500 1357 #define PORT_ISAKMP_NATT 4500 /* rfc3948 */ 1358 1359 /* Forward declerations */ 1360 struct ifnet; 1361 struct mbuf; 1362 1363 #define BPF_PACKET_TYPE_MBUF 0 1364 #if SKYWALK 1365 #define BPF_PACKET_TYPE_PKT 1 1366 #include <skywalk/os_skywalk.h> 1367 #endif /* SKYWALK */ 1368 1369 struct bpf_packet { 1370 int bpfp_type; 1371 void * bpfp_header; /* optional */ 1372 size_t bpfp_header_length; 1373 union { 1374 struct mbuf *bpfpu_mbuf; 1375 void * bpfpu_ptr; 1376 #if SKYWALK 1377 kern_packet_t bpfpu_pkt; 1378 #define bpfp_pkt bpfp_u.bpfpu_pkt 1379 #endif /* SKYWALK */ 1380 } bpfp_u; 1381 #define bpfp_mbuf bpfp_u.bpfpu_mbuf 1382 #define bpfp_ptr bpfp_u.bpfpu_ptr 1383 size_t bpfp_total_length; /* length including optional header */ 1384 }; 1385 1386 extern int bpf_validate(const struct bpf_insn *, int); 1387 extern void bpfdetach(struct ifnet *); 1388 extern void bpfilterattach(int); 1389 extern u_int bpf_filter(const struct bpf_insn *, u_char *, u_int, u_int); 1390 #endif /* KERNEL_PRIVATE */ 1391 1392 #endif /* !defined(DRIVERKIT) */ 1393 1394 #if defined(DRIVERKIT) || defined(KERNEL) 1395 #ifndef BPF_TAP_MODE_T 1396 #define BPF_TAP_MODE_T 1397 /*! 1398 * @enum BPF tap mode 1399 * @abstract Constants defining interface families. 1400 * @constant BPF_MODE_DISABLED Disable bpf. 1401 * @constant BPF_MODE_INPUT Enable input only. 1402 * @constant BPF_MODE_OUTPUT Enable output only. 1403 * @constant BPF_MODE_INPUT_OUTPUT Enable input and output. 1404 */ 1405 1406 enum { 1407 BPF_MODE_DISABLED = 0, 1408 BPF_MODE_INPUT = 1, 1409 BPF_MODE_OUTPUT = 2, 1410 BPF_MODE_INPUT_OUTPUT = 3 1411 }; 1412 /*! 1413 * @typedef bpf_tap_mode 1414 * @abstract Mode for tapping. BPF_MODE_DISABLED/BPF_MODE_INPUT_OUTPUT etc. 1415 */ 1416 typedef uint32_t bpf_tap_mode; 1417 #endif /* !BPF_TAP_MODE_T */ 1418 #endif /* defined(DRIVERKIT) || defined(KERNEL) */ 1419 1420 #ifdef KERNEL 1421 /*! 1422 * @typedef bpf_send_func 1423 * @discussion bpf_send_func is called when a bpf file descriptor is 1424 * used to send a raw packet on the interface. The mbuf and data 1425 * link type are specified. The callback is responsible for 1426 * releasing the mbuf whether or not it returns an error. 1427 * @param interface The interface the packet is being sent on. 1428 * @param data_link_type The data link type the bpf device is attached to. 1429 * @param packet The packet to be sent. 1430 */ 1431 typedef errno_t (*bpf_send_func)(ifnet_t interface, u_int32_t data_link_type, 1432 mbuf_t packet); 1433 1434 /*! 1435 * @typedef bpf_tap_func 1436 * @discussion bpf_tap_func is called when the tap state of the 1437 * interface changes. This happens when a bpf device attaches to an 1438 * interface or detaches from an interface. The tap mode will join 1439 * together (bit or) the modes of all bpf devices using that 1440 * interface for that dlt. If you return an error from this 1441 * function, the bpf device attach attempt that triggered the tap 1442 * will fail. If this function was called bacuse the tap state was 1443 * decreasing (tap in or out is stopping), the error will be 1444 * ignored. 1445 * @param interface The interface being tapped. 1446 * @param data_link_type The data link type being tapped. 1447 * @param direction The direction of the tap. 1448 */ 1449 typedef errno_t (*bpf_tap_func)(ifnet_t interface, u_int32_t data_link_type, 1450 bpf_tap_mode direction); 1451 1452 /*! 1453 * @function bpfattach 1454 * @discussion Registers an interface with BPF. This allows bpf devices 1455 * to attach to your interface to capture packets. Your interface 1456 * will be unregistered automatically when your interface is 1457 * detached. 1458 * @param interface The interface to register with BPF. 1459 * @param data_link_type The data link type of the interface. See the 1460 * DLT_* defines in bpf.h. 1461 * @param header_length The length, in bytes, of the data link header. 1462 */ 1463 extern void bpfattach(ifnet_t interface, u_int data_link_type, 1464 u_int header_length); 1465 1466 /*! 1467 * @function bpf_attach 1468 * @discussion Registers an interface with BPF. This allows bpf devices 1469 * to attach to your interface to capture and transmit packets. 1470 * Your interface will be unregistered automatically when your 1471 * interface is detached. You may register multiple times with 1472 * different data link types. An 802.11 interface would use this to 1473 * allow clients to pick whether they want just an ethernet style 1474 * frame or the 802.11 wireless headers as well. The first dlt you 1475 * register will be considered the default. Any bpf device attaches 1476 * that do not specify a data link type will use the default. 1477 * @param interface The interface to register with BPF. 1478 * @param data_link_type The data link type of the interface. See the 1479 * DLT_* defines in bpf.h. 1480 * @param header_length The length, in bytes, of the data link header. 1481 * @param send See the bpf_send_func described above. 1482 * @param tap See the bpf_tap_func described above. 1483 */ 1484 extern errno_t bpf_attach(ifnet_t interface, u_int32_t data_link_type, 1485 u_int32_t header_length, bpf_send_func send, bpf_tap_func tap); 1486 1487 /*! 1488 * @function bpf_tap_in 1489 * @discussion Call this function when your interface receives a 1490 * packet. This function will check if any bpf devices need a 1491 * a copy of the packet. 1492 * @param interface The interface the packet was received on. 1493 * @param dlt The data link type of the packet. 1494 * @param packet The packet received. 1495 * @param header An optional pointer to a header that will be prepended. 1496 * @param header_len If the header was specified, the length of the header. 1497 */ 1498 extern void bpf_tap_in(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1499 void *header, size_t header_len); 1500 1501 /*! 1502 * @function bpf_tap_out 1503 * @discussion Call this function when your interface transmits a 1504 * packet. This function will check if any bpf devices need a 1505 * a copy of the packet. 1506 * @param interface The interface the packet was or will be transmitted on. 1507 * @param dlt The data link type of the packet. 1508 * @param packet The packet received. 1509 * @param header An optional pointer to a header that will be prepended. 1510 * @param header_len If the header was specified, the length of the header. 1511 */ 1512 extern void bpf_tap_out(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1513 void *header, size_t header_len); 1514 1515 #if SKYWALK 1516 /*! 1517 * @function bpf_tap_packet_in 1518 * @discussion Call this function when your interface receives a 1519 * packet. This function will check if any bpf devices need a 1520 * a copy of the packet. 1521 * @param interface The interface the packet was received on. 1522 * @param dlt The data link type of the packet. 1523 * @param packet The packet received. 1524 * @param header An optional pointer to a header that will be prepended. 1525 * @param header_len If the header was specified, the length of the header. 1526 */ 1527 extern void bpf_tap_packet_in(ifnet_t interface, u_int32_t dlt, 1528 kern_packet_t packet, void *header, size_t header_len); 1529 1530 /*! 1531 * @function bpf_tap_packet_out 1532 * @discussion Call this function when your interface transmits a 1533 * packet. This function will check if any bpf devices need a 1534 * a copy of the packet. 1535 * @param interface The interface the packet was or will be transmitted on. 1536 * @param dlt The data link type of the packet. 1537 * @param packet The packet received. 1538 * @param header An optional pointer to a header that will be prepended. 1539 * @param header_len If the header was specified, the length of the header. 1540 */ 1541 extern void bpf_tap_packet_out(ifnet_t interface, u_int32_t dlt, 1542 kern_packet_t packet, void *header, size_t header_len); 1543 1544 #endif /* SKYWALK */ 1545 #endif /* KERNEL */ 1546 1547 #endif /* _NET_BPF_H_ */ 1548