1 /* 2 * Copyright (c) 2000-2022 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 }; 190 191 #ifdef PRIVATE 192 struct bpf_comp_stats { 193 uint64_t bcs_total_read; /* number of packets read from device */ 194 uint64_t bcs_total_size; /* total size of filtered packets */ 195 uint64_t bcs_total_hdr_size; /* total header size of captured packets */ 196 uint64_t bcs_count_no_common_prefix; /* count of packets not compressible */ 197 uint64_t bcs_count_compressed_prefix; /* count of compressed packets */ 198 uint64_t bcs_total_compressed_prefix_size; /* total size of compressed data */ 199 uint64_t bcs_max_compressed_prefix_size; /* max compressed data size */ 200 }; 201 #endif /* PRIVATE */ 202 203 #if defined(__LP64__) 204 #include <sys/_types/_timeval32.h> 205 206 #define BPF_TIMEVAL timeval32 207 #else 208 #define BPF_TIMEVAL timeval 209 #endif /* __LP64__ */ 210 /* Current version number of filter architecture. */ 211 #define BPF_MAJOR_VERSION 1 212 #define BPF_MINOR_VERSION 1 213 214 #define BIOCGBLEN _IOR('B',102, u_int) 215 #define BIOCSBLEN _IOWR('B',102, u_int) 216 #define BIOCSETF _IOW('B',103, struct bpf_program) 217 #ifdef KERNEL_PRIVATE 218 #define BIOCSETF64 _IOW('B',103, struct bpf_program64) 219 #define BIOCSETF32 _IOW('B',103, struct bpf_program32) 220 #endif /* KERNEL_PRIVATE */ 221 #define BIOCFLUSH _IO('B',104) 222 #define BIOCPROMISC _IO('B',105) 223 #define BIOCGDLT _IOR('B',106, u_int) 224 #define BIOCGETIF _IOR('B',107, struct ifreq) 225 #define BIOCSETIF _IOW('B',108, struct ifreq) 226 #define BIOCSRTIMEOUT _IOW('B',109, struct timeval) 227 #ifdef KERNEL_PRIVATE 228 #define BIOCSRTIMEOUT64 _IOW('B',109, struct user64_timeval) 229 #define BIOCSRTIMEOUT32 _IOW('B',109, struct user32_timeval) 230 #endif /* KERNEL_PRIVATE */ 231 #define BIOCGRTIMEOUT _IOR('B',110, struct timeval) 232 #ifdef KERNEL_PRIVATE 233 #define BIOCGRTIMEOUT64 _IOR('B',110, struct user64_timeval) 234 #define BIOCGRTIMEOUT32 _IOR('B',110, struct user32_timeval) 235 #endif /* KERNEL_PRIVATE */ 236 #define BIOCGSTATS _IOR('B',111, struct bpf_stat) 237 #define BIOCIMMEDIATE _IOW('B',112, u_int) 238 #define BIOCVERSION _IOR('B',113, struct bpf_version) 239 #define BIOCGRSIG _IOR('B',114, u_int) 240 #define BIOCSRSIG _IOW('B',115, u_int) 241 #define BIOCGHDRCMPLT _IOR('B',116, u_int) 242 #define BIOCSHDRCMPLT _IOW('B',117, u_int) 243 #define BIOCGSEESENT _IOR('B',118, u_int) 244 #define BIOCSSEESENT _IOW('B',119, u_int) 245 #define BIOCSDLT _IOW('B',120, u_int) 246 #define BIOCGDLTLIST _IOWR('B',121, struct bpf_dltlist) 247 #ifdef PRIVATE 248 #define BIOCGETTC _IOR('B', 122, int) 249 #define BIOCSETTC _IOW('B', 123, int) 250 #define BIOCSEXTHDR _IOW('B', 124, u_int) 251 #define BIOCGIFATTACHCOUNT _IOWR('B', 125, struct ifreq) 252 #endif /* PRIVATE */ 253 #define BIOCSETFNR _IOW('B', 126, struct bpf_program) 254 #ifdef KERNEL_PRIVATE 255 #define BIOCSETFNR64 _IOW('B',126, struct bpf_program64) 256 #define BIOCSETFNR32 _IOW('B',126, struct bpf_program32) 257 #endif /* KERNEL_PRIVATE */ 258 #ifdef PRIVATE 259 #define BIOCGWANTPKTAP _IOR('B', 127, u_int) 260 #define BIOCSWANTPKTAP _IOWR('B', 127, u_int) 261 #define BIOCSHEADDROP _IOW('B', 128, int) 262 #define BIOCGHEADDROP _IOR('B', 128, int) 263 #define BIOCSTRUNCATE _IOW('B', 129, u_int) 264 #define BIOCGETUUID _IOR('B', 130, uuid_t) 265 #define BIOCSETUP _IOW('B', 131, struct bpf_setup_args) 266 #define BIOCSPKTHDRV2 _IOW('B', 132, int) 267 #define BIOCGPKTHDRV2 _IOW('B', 133, int) 268 #define BIOCGHDRCOMP _IOR('B', 134, int) 269 #define BIOCSHDRCOMP _IOW('B', 135, int) 270 #define BIOCGHDRCOMPSTATS _IOR('B', 136, struct bpf_comp_stats) 271 #define BIOCGHDRCOMPON _IOR('B', 137, int) 272 #endif /* PRIVATE */ 273 /* 274 * Structure prepended to each packet. 275 */ 276 struct bpf_hdr { 277 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 278 bpf_u_int32 bh_caplen; /* length of captured portion */ 279 bpf_u_int32 bh_datalen; /* original length of packet */ 280 u_short bh_hdrlen; /* length of bpf header (this struct 281 * plus alignment padding) */ 282 }; 283 #ifdef KERNEL 284 /* 285 * Because the structure above is not a multiple of 4 bytes, some compilers 286 * will insist on inserting padding; hence, sizeof(struct bpf_hdr) won't work. 287 * Only the kernel needs to know about it; applications use bh_hdrlen. 288 */ 289 #define SIZEOF_BPF_HDR (sizeof(struct bpf_hdr) <= 20 ? 18 : \ 290 sizeof(struct bpf_hdr)) 291 #endif 292 #ifdef PRIVATE 293 /* 294 * This structure must be a multiple of 4 bytes. 295 * It includes padding and spare fields that we can use later if desired. 296 */ 297 struct bpf_hdr_ext { 298 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 299 bpf_u_int32 bh_caplen; /* length of captured portion */ 300 bpf_u_int32 bh_datalen; /* original length of packet */ 301 u_short bh_hdrlen; /* length of bpf header */ 302 u_char bh_complen; 303 u_char bh_flags; 304 #define BPF_HDR_EXT_FLAGS_DIR_IN 0x00 305 #define BPF_HDR_EXT_FLAGS_DIR_OUT 0x01 306 #ifdef BSD_KERNEL_PRIVATE 307 #define BPF_HDR_EXT_FLAGS_TCP 0x02 308 #define BPF_HDR_EXT_FLAGS_UDP 0x04 309 #endif /* BSD_KERNEL_PRIVATE */ 310 pid_t bh_pid; /* process PID */ 311 char bh_comm[MAXCOMLEN + 1]; /* process command */ 312 u_char bh_pktflags; 313 #define BPF_PKTFLAGS_TCP_REXMT 0x01 314 #define BPF_PKTFLAGS_START_SEQ 0x02 315 #define BPF_PKTFLAGS_LAST_PKT 0x04 316 #define BPF_PKTFLAGS_WAKE_PKT 0x08 317 uint16_t bh_trace_tag; 318 bpf_u_int32 bh_svc; /* service class */ 319 bpf_u_int32 bh_flowid; /* kernel reserved; 0 in userland */ 320 bpf_u_int32 bh_unsent_bytes; /* unsent bytes at interface */ 321 bpf_u_int32 bh_unsent_snd; /* unsent bytes at socket buffer */ 322 }; 323 324 #define BPF_HDR_EXT_HAS_TRACE_TAG 1 325 326 /* 327 * External representation of the bpf descriptor 328 */ 329 struct xbpf_d { 330 uint32_t bd_structsize; /* Size of this structure. */ 331 int32_t bd_dev_minor; 332 int32_t bd_sig; 333 uint32_t bd_slen; 334 uint32_t bd_hlen; 335 uint32_t bd_bufsize; 336 pid_t bd_pid; 337 338 uint8_t bd_promisc; 339 uint8_t bd_immediate; 340 uint8_t bd_hdrcmplt; 341 uint8_t bd_async; 342 343 uint8_t bd_headdrop; 344 uint8_t bd_seesent; 345 uint8_t bh_compreq; 346 uint8_t bh_compenabled; 347 348 uint8_t bd_exthdr; 349 uint8_t bd_trunc; 350 uint8_t bd_pkthdrv2; 351 uint8_t bd_pad; 352 353 uint64_t bd_rcount; 354 uint64_t bd_dcount; 355 uint64_t bd_fcount; 356 uint64_t bd_wcount; 357 uint64_t bd_wdcount; 358 359 char bd_ifname[IFNAMSIZ]; 360 361 uint64_t bd_comp_count; 362 uint64_t bd_comp_size; 363 364 uint32_t bd_scnt; /* number of packets in store buffer */ 365 uint32_t bd_hcnt; /* number of packets in hold buffer */ 366 367 uint64_t bd_read_count; 368 uint64_t bd_fsize; 369 }; 370 371 #define _HAS_STRUCT_XBPF_D_ 2 372 373 struct bpf_comp_hdr { 374 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 375 bpf_u_int32 bh_caplen; /* length of captured portion */ 376 bpf_u_int32 bh_datalen; /* original length of packet */ 377 u_short bh_hdrlen; /* length of bpf header (this struct 378 * plus alignment padding) */ 379 u_char bh_complen; /* data portion compressed */ 380 u_char bh_padding; /* data portion compressed */ 381 }; 382 383 #define HAS_BPF_HDR_COMP 1 384 #define BPF_HDR_COMP_LEN_MAX 255 385 386 387 #endif /* PRIVATE */ 388 #endif /* !defined(DRIVERKIT) */ 389 390 /* 391 * Data-link level type codes. 392 */ 393 #define DLT_NULL 0 /* no link-layer encapsulation */ 394 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 395 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 396 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 397 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 398 #define DLT_CHAOS 5 /* Chaos */ 399 #define DLT_IEEE802 6 /* IEEE 802 Networks */ 400 #define DLT_ARCNET 7 /* ARCNET */ 401 #define DLT_SLIP 8 /* Serial Line IP */ 402 #define DLT_PPP 9 /* Point-to-point Protocol */ 403 #define DLT_FDDI 10 /* FDDI */ 404 #define DLT_ATM_RFC1483 11 /* LLC/SNAP encapsulated atm */ 405 #define DLT_RAW 12 /* raw IP */ 406 407 /* 408 * These are values from BSD/OS's "bpf.h". 409 * These are not the same as the values from the traditional libpcap 410 * "bpf.h"; however, these values shouldn't be generated by any 411 * OS other than BSD/OS, so the correct values to use here are the 412 * BSD/OS values. 413 * 414 * Platforms that have already assigned these values to other 415 * DLT_ codes, however, should give these codes the values 416 * from that platform, so that programs that use these codes will 417 * continue to compile - even though they won't correctly read 418 * files of these types. 419 */ 420 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 421 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 422 423 /* 424 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is. 425 * 426 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG 427 * as 117 so that pflog captures would use a link-layer header type 428 * value that didn't collide with any other values. On all 429 * platforms other than OpenBSD, we defined DLT_PFLOG as 117, 430 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG. 431 * 432 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well. 433 * 434 * Don't use 17 for anything else. 435 */ 436 437 /* 438 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and 439 * Mac OS X; don't use it for anything else. (FreeBSD uses 121, 440 * which collides with DLT_HHDLC, even though it doesn't use 18 441 * for anything and doesn't appear to have ever used it for anything.) 442 * 443 * We define it as 18 on those platforms; it is, unfortunately, used 444 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC 445 * in general. As the packet format for it, like that for 446 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent, 447 * we don't support printing it in tcpdump except on OSes that 448 * have the relevant header files, so it's not that useful on 449 * other platforms. 450 */ 451 #define DLT_PFSYNC 18 /* Packet filter state syncing */ 452 453 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 454 455 /* 456 * These values are defined by NetBSD; other platforms should refrain from 457 * using them for other purposes, so that NetBSD savefiles with link 458 * types of 50 or 51 can be read as this type on all platforms. 459 */ 460 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 461 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 462 463 /* 464 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 465 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 466 * header has 6 bytes of unknown data, something that appears to be an 467 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 468 * I've seen. 469 */ 470 #define DLT_SYMANTEC_FIREWALL 99 471 472 /* 473 * Values between 100 and 103 are used in capture file headers as 474 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 475 * that differ between platforms; don't use those values for new DLT_ 476 * new types. 477 */ 478 479 /* 480 * Values starting with 104 are used for newly-assigned link-layer 481 * header type values; for those link-layer header types, the DLT_ 482 * value returned by pcap_datalink() and passed to pcap_open_dead(), 483 * and the LINKTYPE_ value that appears in capture files, are the 484 * same. 485 * 486 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 487 * the highest such value. 488 */ 489 #define DLT_MATCHING_MIN 104 490 491 /* 492 * This value was defined by libpcap 0.5; platforms that have defined 493 * it with a different value should define it here with that value - 494 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 495 * whatever value that happens to be, so programs will correctly 496 * handle files with that link type regardless of the value of 497 * DLT_C_HDLC. 498 * 499 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 500 * compatibility with programs written for BSD/OS. 501 * 502 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 503 * for source compatibility with programs written for libpcap 0.5. 504 */ 505 #define DLT_C_HDLC 104 /* Cisco HDLC */ 506 #define DLT_CHDLC DLT_C_HDLC 507 508 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 509 510 /* 511 * Values between 106 and 107 are used in capture file headers as 512 * link-layer types corresponding to DLT_ types that might differ 513 * between platforms; don't use those values for new DLT_ new types. 514 */ 515 516 /* 517 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 518 * with other values. 519 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 520 * (DLCI, etc.). 521 */ 522 #define DLT_FRELAY 107 523 524 /* 525 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 526 * that the AF_ type in the link-layer header is in network byte order. 527 * 528 * OpenBSD defines it as 12, but that collides with DLT_RAW, so we 529 * define it as 108 here. If OpenBSD picks up this file, it should 530 * define DLT_LOOP as 12 in its version, as per the comment above - 531 * and should not use 108 for any purpose. 532 */ 533 #define DLT_LOOP 108 534 535 /* 536 * Values between 109 and 112 are used in capture file headers as 537 * link-layer types corresponding to DLT_ types that might differ 538 * between platforms; don't use those values for new DLT_ new types. 539 */ 540 541 /* 542 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 543 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 544 * than OpenBSD. 545 */ 546 #define DLT_ENC 109 547 548 /* 549 * This is for Linux cooked sockets. 550 */ 551 #define DLT_LINUX_SLL 113 552 553 /* 554 * Apple LocalTalk hardware. 555 */ 556 #define DLT_LTALK 114 557 558 /* 559 * Acorn Econet. 560 */ 561 #define DLT_ECONET 115 562 563 /* 564 * Reserved for use with OpenBSD ipfilter. 565 */ 566 #define DLT_IPFILTER 116 567 568 /* 569 * For use in capture-file headers as a link-layer type corresponding 570 * to OpenBSD PF (Packet Filter) log. 571 */ 572 #define DLT_PFLOG 117 573 574 /* 575 * Registered for Cisco-internal use. 576 */ 577 #define DLT_CISCO_IOS 118 578 579 /* 580 * Reserved for 802.11 cards using the Prism II chips, with a link-layer 581 * header including Prism monitor mode information plus an 802.11 582 * header. 583 */ 584 #define DLT_PRISM_HEADER 119 585 586 /* 587 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 588 * (see Doug Ambrisko's FreeBSD patches). 589 */ 590 #define DLT_AIRONET_HEADER 120 591 592 /* 593 * Reserved for Siemens HiPath HDLC. XXX 594 */ 595 #define DLT_HHDLC 121 596 597 /* 598 * Reserved for RFC 2625 IP-over-Fibre Channel. 599 */ 600 #define DLT_IP_OVER_FC 122 601 602 /* 603 * Reserved for Full Frontal ATM on Solaris. 604 */ 605 #define DLT_SUNATM 123 606 607 /* 608 * Reserved as per request from Kent Dahlgren <[email protected]> 609 * for private use. 610 */ 611 #define DLT_RIO 124 /* RapidIO */ 612 #define DLT_PCI_EXP 125 /* PCI Express */ 613 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 614 615 /* 616 * BSD header for 802.11 plus a number of bits of link-layer information 617 * including radio information. 618 */ 619 #ifndef DLT_IEEE802_11_RADIO 620 #define DLT_IEEE802_11_RADIO 127 621 #endif 622 623 /* 624 * Reserved for TZSP encapsulation. 625 */ 626 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 627 628 /* 629 * Reserved for Linux ARCNET. 630 */ 631 #define DLT_ARCNET_LINUX 129 632 633 /* 634 * Juniper-private data link types. 635 */ 636 #define DLT_JUNIPER_MLPPP 130 637 #define DLT_JUNIPER_MLFR 131 638 #define DLT_JUNIPER_ES 132 639 #define DLT_JUNIPER_GGSN 133 640 #define DLT_JUNIPER_MFR 134 641 #define DLT_JUNIPER_ATM2 135 642 #define DLT_JUNIPER_SERVICES 136 643 #define DLT_JUNIPER_ATM1 137 644 645 /* 646 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 647 * <[email protected]>. The header that's presented is an Ethernet-like 648 * header: 649 * 650 * #define FIREWIRE_EUI64_LEN 8 651 * struct firewire_header { 652 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 653 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 654 * u_short firewire_type; 655 * }; 656 * 657 * with "firewire_type" being an Ethernet type value, rather than, 658 * for example, raw GASP frames being handed up. 659 */ 660 #define DLT_APPLE_IP_OVER_IEEE1394 138 661 662 /* 663 * Various SS7 encapsulations, as per a request from Jeff Morriss 664 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 665 */ 666 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 667 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 668 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 669 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 670 671 /* 672 * Reserved for DOCSIS. 673 */ 674 #define DLT_DOCSIS 143 675 676 /* 677 * Reserved for Linux IrDA. 678 */ 679 #define DLT_LINUX_IRDA 144 680 681 /* 682 * Reserved for IBM SP switch and IBM Next Federation switch. 683 */ 684 #define DLT_IBM_SP 145 685 #define DLT_IBM_SN 146 686 687 /* 688 * Reserved for private use. If you have some link-layer header type 689 * that you want to use within your organization, with the capture files 690 * using that link-layer header type not ever be sent outside your 691 * organization, you can use these values. 692 * 693 * No libpcap release will use these for any purpose, nor will any 694 * tcpdump release use them, either. 695 * 696 * Do *NOT* use these in capture files that you expect anybody not using 697 * your private versions of capture-file-reading tools to read; in 698 * particular, do *NOT* use them in products, otherwise you may find that 699 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 700 * read capture files from your firewall/intrusion detection/traffic 701 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 702 * and you may also find that the developers of those applications will 703 * not accept patches to let them read those files. 704 * 705 * Also, do not use them if somebody might send you a capture using them 706 * for *their* private type and tools using them for *your* private type 707 * would have to read them. 708 * 709 * Instead, ask "[email protected]" for a new DLT_ value, 710 * as per the comment above, and use the type you're given. 711 */ 712 #define DLT_USER0 147 713 #define DLT_USER1 148 714 #define DLT_USER2 149 715 #define DLT_USER3 150 716 #define DLT_USER4 151 717 #define DLT_USER5 152 718 #define DLT_USER6 153 719 #define DLT_USER7 154 720 #define DLT_USER8 155 721 #define DLT_USER9 156 722 #define DLT_USER10 157 723 #define DLT_USER11 158 724 #define DLT_USER12 159 725 #define DLT_USER13 160 726 #define DLT_USER14 161 727 #define DLT_USER15 162 728 729 #ifdef PRIVATE 730 /* 731 * For Apple private usage 732 */ 733 #define DLT_USER0_APPLE_INTERNAL DLT_USER0 /* rdar://12019509 */ 734 #define DLT_USER1_APPLE_INTERNAL DLT_USER1 /* rdar://12019509 */ 735 #define DLT_PKTAP DLT_USER2 /* rdar://11779467 */ 736 #define DLT_USER3_APPLE_INTERNAL DLT_USER3 /* rdar://19614531 */ 737 #define DLT_USER4_APPLE_INTERNAL DLT_USER4 /* rdar://19614531 */ 738 #endif /* PRIVATE */ 739 740 /* 741 * For future use with 802.11 captures - defined by AbsoluteValue 742 * Systems to store a number of bits of link-layer information 743 * including radio information: 744 * 745 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 746 * 747 * but it might be used by some non-AVS drivers now or in the 748 * future. 749 */ 750 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 751 752 /* 753 * Juniper-private data link type, as per request from 754 * Hannes Gredler <[email protected]>. The DLT_s are used 755 * for passing on chassis-internal metainformation such as 756 * QOS profiles, etc.. 757 */ 758 #define DLT_JUNIPER_MONITOR 164 759 760 /* 761 * Reserved for BACnet MS/TP. 762 */ 763 #define DLT_BACNET_MS_TP 165 764 765 /* 766 * Another PPP variant as per request from Karsten Keil <[email protected]>. 767 * 768 * This is used in some OSes to allow a kernel socket filter to distinguish 769 * between incoming and outgoing packets, on a socket intended to 770 * supply pppd with outgoing packets so it can do dial-on-demand and 771 * hangup-on-lack-of-demand; incoming packets are filtered out so they 772 * don't cause pppd to hold the connection up (you don't want random 773 * input packets such as port scans, packets from old lost connections, 774 * etc. to force the connection to stay up). 775 * 776 * The first byte of the PPP header (0xff03) is modified to accomodate 777 * the direction - 0x00 = IN, 0x01 = OUT. 778 */ 779 #define DLT_PPP_PPPD 166 780 781 /* 782 * Names for backwards compatibility with older versions of some PPP 783 * software; new software should use DLT_PPP_PPPD. 784 */ 785 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 786 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 787 788 /* 789 * Juniper-private data link type, as per request from 790 * Hannes Gredler <[email protected]>. The DLT_s are used 791 * for passing on chassis-internal metainformation such as 792 * QOS profiles, cookies, etc.. 793 */ 794 #define DLT_JUNIPER_PPPOE 167 795 #define DLT_JUNIPER_PPPOE_ATM 168 796 797 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 798 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 799 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 800 801 /* 802 * Requested by Oolan Zimmer <[email protected]> for use in Gcom's T1/E1 line 803 * monitoring equipment. 804 */ 805 #define DLT_GCOM_T1E1 172 806 #define DLT_GCOM_SERIAL 173 807 808 /* 809 * Juniper-private data link type, as per request from 810 * Hannes Gredler <[email protected]>. The DLT_ is used 811 * for internal communication to Physical Interface Cards (PIC) 812 */ 813 #define DLT_JUNIPER_PIC_PEER 174 814 815 /* 816 * Link types requested by Gregor Maier <[email protected]> of Endace 817 * Measurement Systems. They add an ERF header (see 818 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 819 * the link-layer header. 820 */ 821 #define DLT_ERF_ETH 175 /* Ethernet */ 822 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 823 824 /* 825 * Requested by Daniele Orlandi <[email protected]> for raw LAPD 826 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 827 * includes additional information before the LAPD header, so it's 828 * not necessarily a generic LAPD header. 829 */ 830 #define DLT_LINUX_LAPD 177 831 832 /* 833 * Juniper-private data link type, as per request from 834 * Hannes Gredler <[email protected]>. 835 * The DLT_ are used for prepending meta-information 836 * like interface index, interface name 837 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 838 */ 839 #define DLT_JUNIPER_ETHER 178 840 #define DLT_JUNIPER_PPP 179 841 #define DLT_JUNIPER_FRELAY 180 842 #define DLT_JUNIPER_CHDLC 181 843 844 /* 845 * Multi Link Frame Relay (FRF.16) 846 */ 847 #define DLT_MFR 182 848 849 /* 850 * Juniper-private data link type, as per request from 851 * Hannes Gredler <[email protected]>. 852 * The DLT_ is used for internal communication with a 853 * voice Adapter Card (PIC) 854 */ 855 #define DLT_JUNIPER_VP 183 856 857 /* 858 * Arinc 429 frames. 859 * DLT_ requested by Gianluca Varenni <[email protected]>. 860 * Every frame contains a 32bit A429 label. 861 * More documentation on Arinc 429 can be found at 862 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 863 */ 864 #define DLT_A429 184 865 866 /* 867 * Arinc 653 Interpartition Communication messages. 868 * DLT_ requested by Gianluca Varenni <[email protected]>. 869 * Please refer to the A653-1 standard for more information. 870 */ 871 #define DLT_A653_ICM 185 872 873 /* 874 * USB packets, beginning with a USB setup header; requested by 875 * Paolo Abeni <[email protected]>. 876 */ 877 #define DLT_USB 186 878 879 /* 880 * Bluetooth HCI UART transport layer (part H:4); requested by 881 * Paolo Abeni. 882 */ 883 #define DLT_BLUETOOTH_HCI_H4 187 884 885 /* 886 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 887 * <[email protected]>. 888 */ 889 #define DLT_IEEE802_16_MAC_CPS 188 890 891 /* 892 * USB packets, beginning with a Linux USB header; requested by 893 * Paolo Abeni <[email protected]>. 894 */ 895 #define DLT_USB_LINUX 189 896 897 /* 898 * Controller Area Network (CAN) v. 2.0B packets. 899 * DLT_ requested by Gianluca Varenni <[email protected]>. 900 * Used to dump CAN packets coming from a CAN Vector board. 901 * More documentation on the CAN v2.0B frames can be found at 902 * http://www.can-cia.org/downloads/?269 903 */ 904 #define DLT_CAN20B 190 905 906 /* 907 * IEEE 802.15.4, with address fields padded, as is done by Linux 908 * drivers; requested by Juergen Schimmer. 909 */ 910 #define DLT_IEEE802_15_4_LINUX 191 911 912 /* 913 * Per Packet Information encapsulated packets. 914 * DLT_ requested by Gianluca Varenni <[email protected]>. 915 */ 916 #define DLT_PPI 192 917 918 /* 919 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 920 * requested by Charles Clancy. 921 */ 922 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 923 924 /* 925 * Juniper-private data link type, as per request from 926 * Hannes Gredler <[email protected]>. 927 * The DLT_ is used for internal communication with a 928 * integrated service module (ISM). 929 */ 930 #define DLT_JUNIPER_ISM 194 931 932 /* 933 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 934 * nothing); requested by Mikko Saarnivala <[email protected]>. 935 */ 936 #define DLT_IEEE802_15_4 195 937 938 /* 939 * Various link-layer types, with a pseudo-header, for SITA 940 * (http://www.sita.aero/); requested by Fulko Hew ([email protected]). 941 */ 942 #define DLT_SITA 196 943 944 /* 945 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 946 * encapsulates Endace ERF records. Requested by Stephen Donnelly 947 * <[email protected]>. 948 */ 949 #define DLT_ERF 197 950 951 /* 952 * Special header prepended to Ethernet packets when capturing from a 953 * u10 Networks board. Requested by Phil Mulholland 954 * <[email protected]>. 955 */ 956 #define DLT_RAIF1 198 957 958 /* 959 * IPMB packet for IPMI, beginning with the I2C slave address, followed 960 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 961 * <[email protected]>. 962 */ 963 #define DLT_IPMB 199 964 965 /* 966 * Juniper-private data link type, as per request from 967 * Hannes Gredler <[email protected]>. 968 * The DLT_ is used for capturing data on a secure tunnel interface. 969 */ 970 #define DLT_JUNIPER_ST 200 971 972 /* 973 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 974 * that includes direction information; requested by Paolo Abeni. 975 */ 976 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 977 978 /* 979 * AX.25 packet with a 1-byte KISS header; see 980 * 981 * http://www.ax25.net/kiss.htm 982 * 983 * as per Richard Stearn <[email protected]>. 984 */ 985 #define DLT_AX25_KISS 202 986 987 /* 988 * LAPD packets from an ISDN channel, starting with the address field, 989 * with no pseudo-header. 990 * Requested by Varuna De Silva <[email protected]>. 991 */ 992 #define DLT_LAPD 203 993 994 /* 995 * Variants of various link-layer headers, with a one-byte direction 996 * pseudo-header prepended - zero means "received by this host", 997 * non-zero (any non-zero value) means "sent by this host" - as per 998 * Will Barker <[email protected]>. 999 */ 1000 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */ 1001 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */ 1002 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */ 1003 #define DLT_LAPB_WITH_DIR 207 /* LAPB */ 1004 1005 /* 1006 * 208 is reserved for an as-yet-unspecified proprietary link-layer 1007 * type, as requested by Will Barker. 1008 */ 1009 1010 /* 1011 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 1012 * <[email protected]>. 1013 */ 1014 #define DLT_IPMB_LINUX 209 1015 1016 /* 1017 * FlexRay automotive bus - http://www.flexray.com/ - as requested 1018 * by Hannes Kaelber <[email protected]>. 1019 */ 1020 #define DLT_FLEXRAY 210 1021 1022 /* 1023 * Media Oriented Systems Transport (MOST) bus for multimedia 1024 * transport - http://www.mostcooperation.com/ - as requested 1025 * by Hannes Kaelber <[email protected]>. 1026 */ 1027 #define DLT_MOST 211 1028 1029 /* 1030 * Local Interconnect Network (LIN) bus for vehicle networks - 1031 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 1032 * <[email protected]>. 1033 */ 1034 #define DLT_LIN 212 1035 1036 /* 1037 * X2E-private data link type used for serial line capture, 1038 * as requested by Hannes Kaelber <[email protected]>. 1039 */ 1040 #define DLT_X2E_SERIAL 213 1041 1042 /* 1043 * X2E-private data link type used for the Xoraya data logger 1044 * family, as requested by Hannes Kaelber <[email protected]>. 1045 */ 1046 #define DLT_X2E_XORAYA 214 1047 1048 /* 1049 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1050 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 1051 * of 0 as preamble, one octet of SFD, one octet of frame length+ 1052 * reserved bit, and then the MAC-layer data, starting with the 1053 * frame control field). 1054 * 1055 * Requested by Max Filippov <[email protected]>. 1056 */ 1057 #define DLT_IEEE802_15_4_NONASK_PHY 215 1058 1059 /* 1060 * David Gibson <[email protected]> requested this for 1061 * captures from the Linux kernel /dev/input/eventN devices. This 1062 * is used to communicate keystrokes and mouse movements from the 1063 * Linux kernel to display systems, such as Xorg. 1064 */ 1065 #define DLT_LINUX_EVDEV 216 1066 1067 /* 1068 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 1069 * 1070 * Requested by Harald Welte <[email protected]>. 1071 */ 1072 #define DLT_GSMTAP_UM 217 1073 #define DLT_GSMTAP_ABIS 218 1074 1075 /* 1076 * MPLS, with an MPLS label as the link-layer header. 1077 * Requested by Michele Marchetto <[email protected]> on behalf 1078 * of OpenBSD. 1079 */ 1080 #define DLT_MPLS 219 1081 1082 /* 1083 * USB packets, beginning with a Linux USB header, with the USB header 1084 * padded to 64 bytes; required for memory-mapped access. 1085 */ 1086 #define DLT_USB_LINUX_MMAPPED 220 1087 1088 /* 1089 * DECT packets, with a pseudo-header; requested by 1090 * Matthias Wenzel <[email protected]>. 1091 */ 1092 #define DLT_DECT 221 1093 1094 /* 1095 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <[email protected]> 1096 * Date: Mon, 11 May 2009 11:18:30 -0500 1097 * 1098 * DLT_AOS. We need it for AOS Space Data Link Protocol. 1099 * I have already written dissectors for but need an OK from 1100 * legal before I can submit a patch. 1101 * 1102 */ 1103 #define DLT_AOS 222 1104 1105 /* 1106 * Wireless HART (Highway Addressable Remote Transducer) 1107 * From the HART Communication Foundation 1108 * IES/PAS 62591 1109 * 1110 * Requested by Sam Roberts <[email protected]>. 1111 */ 1112 #define DLT_WIHART 223 1113 1114 /* 1115 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 1116 * Requested by Kahou Lei <[email protected]>. 1117 */ 1118 #define DLT_FC_2 224 1119 1120 /* 1121 * Fibre Channel FC-2 frames, beginning with an encoding of the 1122 * SOF, and ending with an encoding of the EOF. 1123 * 1124 * The encodings represent the frame delimiters as 4-byte sequences 1125 * representing the corresponding ordered sets, with K28.5 1126 * represented as 0xBC, and the D symbols as the corresponding 1127 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 1128 * is represented as 0xBC 0xB5 0x55 0x55. 1129 * 1130 * Requested by Kahou Lei <[email protected]>. 1131 */ 1132 #define DLT_FC_2_WITH_FRAME_DELIMS 225 1133 1134 /* 1135 * Solaris ipnet pseudo-header; requested by Darren Reed <[email protected]>. 1136 * 1137 * The pseudo-header starts with a one-byte version number; for version 2, 1138 * the pseudo-header is: 1139 * 1140 * struct dl_ipnetinfo { 1141 * u_int8_t dli_version; 1142 * u_int8_t dli_family; 1143 * u_int16_t dli_htype; 1144 * u_int32_t dli_pktlen; 1145 * u_int32_t dli_ifindex; 1146 * u_int32_t dli_grifindex; 1147 * u_int32_t dli_zsrc; 1148 * u_int32_t dli_zdst; 1149 * }; 1150 * 1151 * dli_version is 2 for the current version of the pseudo-header. 1152 * 1153 * dli_family is a Solaris address family value, so it's 2 for IPv4 1154 * and 26 for IPv6. 1155 * 1156 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 1157 * packets, and 2 for packets arriving from another zone on the same 1158 * machine. 1159 * 1160 * dli_pktlen is the length of the packet data following the pseudo-header 1161 * (so the captured length minus dli_pktlen is the length of the 1162 * pseudo-header, assuming the entire pseudo-header was captured). 1163 * 1164 * dli_ifindex is the interface index of the interface on which the 1165 * packet arrived. 1166 * 1167 * dli_grifindex is the group interface index number (for IPMP interfaces). 1168 * 1169 * dli_zsrc is the zone identifier for the source of the packet. 1170 * 1171 * dli_zdst is the zone identifier for the destination of the packet. 1172 * 1173 * A zone number of 0 is the global zone; a zone number of 0xffffffff 1174 * means that the packet arrived from another host on the network, not 1175 * from another zone on the same machine. 1176 * 1177 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 1178 * which of those it is. 1179 */ 1180 #define DLT_IPNET 226 1181 1182 /* 1183 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 1184 * by Linux SocketCAN. See Documentation/networking/can.txt in the Linux 1185 * source. 1186 * 1187 * Requested by Felix Obenhuber <[email protected]>. 1188 */ 1189 #define DLT_CAN_SOCKETCAN 227 1190 1191 /* 1192 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 1193 * whether it's v4 or v6. Requested by Darren Reed <[email protected]>. 1194 */ 1195 #define DLT_IPV4 228 1196 #define DLT_IPV6 229 1197 1198 /* 1199 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1200 * nothing), and with no FCS at the end of the frame; requested by 1201 * Jon Smirl <[email protected]>. 1202 */ 1203 #define DLT_IEEE802_15_4_NOFCS 230 1204 1205 /* 1206 * Raw D-Bus: 1207 * 1208 * http://www.freedesktop.org/wiki/Software/dbus 1209 * 1210 * messages: 1211 * 1212 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 1213 * 1214 * starting with the endianness flag, followed by the message type, etc., 1215 * but without the authentication handshake before the message sequence: 1216 * 1217 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1218 * 1219 * Requested by Martin Vidner <[email protected]>. 1220 */ 1221 #define DLT_DBUS 231 1222 1223 /* 1224 * Juniper-private data link type, as per request from 1225 * Hannes Gredler <[email protected]>. 1226 */ 1227 #define DLT_JUNIPER_VS 232 1228 #define DLT_JUNIPER_SRX_E2E 233 1229 #define DLT_JUNIPER_FIBRECHANNEL 234 1230 1231 /* 1232 * DVB-CI (DVB Common Interface for communication between a PC Card 1233 * module and a DVB receiver). See 1234 * 1235 * http://www.kaiser.cx/pcap-dvbci.html 1236 * 1237 * for the specification. 1238 * 1239 * Requested by Martin Kaiser <[email protected]>. 1240 */ 1241 #define DLT_DVB_CI 235 1242 1243 /* 1244 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1245 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1246 * <[email protected]>. 1247 */ 1248 #define DLT_MUX27010 236 1249 1250 /* 1251 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1252 * <[email protected]>. 1253 */ 1254 #define DLT_STANAG_5066_D_PDU 237 1255 1256 /* 1257 * Juniper-private data link type, as per request from 1258 * Hannes Gredler <[email protected]>. 1259 */ 1260 #define DLT_JUNIPER_ATM_CEMIC 238 1261 1262 /* 1263 * NetFilter LOG messages 1264 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1265 * 1266 * Requested by Jakub Zawadzki <[email protected]> 1267 */ 1268 #define DLT_NFLOG 239 1269 1270 /* 1271 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1272 * for Ethernet packets with a 4-byte pseudo-header and always 1273 * with the payload including the FCS, as supplied by their 1274 * netANALYZER hardware and software. 1275 * 1276 * Requested by Holger P. Frommer <[email protected]> 1277 */ 1278 #define DLT_NETANALYZER 240 1279 1280 /* 1281 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1282 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1283 * with the Ethernet header preceded by 7 bytes of preamble and 1284 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1285 * software. 1286 * 1287 * Requested by Holger P. Frommer <[email protected]> 1288 */ 1289 #define DLT_NETANALYZER_TRANSPARENT 241 1290 1291 /* 1292 * IP-over-Infiniband, as specified by RFC 4391. 1293 * 1294 * Requested by Petr Sumbera <[email protected]>. 1295 */ 1296 #define DLT_IPOIB 242 1297 1298 /* 1299 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0). 1300 * 1301 * Requested by Guy Martin <[email protected]>. 1302 */ 1303 #define DLT_MPEG_2_TS 243 1304 1305 /* 1306 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as 1307 * used by their ng40 protocol tester. 1308 * 1309 * Requested by Jens Grimmer <[email protected]>. 1310 */ 1311 #define DLT_NG40 244 1312 1313 /* 1314 * Pseudo-header giving adapter number and flags, followed by an NFC 1315 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU, 1316 * as specified by NFC Forum Logical Link Control Protocol Technical 1317 * Specification LLCP 1.1. 1318 * 1319 * Requested by Mike Wakerly <[email protected]>. 1320 */ 1321 #define DLT_NFC_LLCP 245 1322 1323 /* 1324 * USB packets, beginning with a Darwin (macOS, etc.) USB header. 1325 */ 1326 #define DLT_USB_DARWIN 266 1327 1328 #define DLT_MATCHING_MAX 266 /* highest value in the "matching" range */ 1329 1330 #if !defined(DRIVERKIT) 1331 /* 1332 * The instruction encodings. 1333 */ 1334 /* instruction classes */ 1335 #define BPF_CLASS(code) ((code) & 0x07) 1336 #define BPF_LD 0x00 1337 #define BPF_LDX 0x01 1338 #define BPF_ST 0x02 1339 #define BPF_STX 0x03 1340 #define BPF_ALU 0x04 1341 #define BPF_JMP 0x05 1342 #define BPF_RET 0x06 1343 #define BPF_MISC 0x07 1344 1345 /* ld/ldx fields */ 1346 #define BPF_SIZE(code) ((code) & 0x18) 1347 #define BPF_W 0x00 1348 #define BPF_H 0x08 1349 #define BPF_B 0x10 1350 #define BPF_MODE(code) ((code) & 0xe0) 1351 #define BPF_IMM 0x00 1352 #define BPF_ABS 0x20 1353 #define BPF_IND 0x40 1354 #define BPF_MEM 0x60 1355 #define BPF_LEN 0x80 1356 #define BPF_MSH 0xa0 1357 1358 /* alu/jmp fields */ 1359 #define BPF_OP(code) ((code) & 0xf0) 1360 #define BPF_ADD 0x00 1361 #define BPF_SUB 0x10 1362 #define BPF_MUL 0x20 1363 #define BPF_DIV 0x30 1364 #define BPF_OR 0x40 1365 #define BPF_AND 0x50 1366 #define BPF_LSH 0x60 1367 #define BPF_RSH 0x70 1368 #define BPF_NEG 0x80 1369 #define BPF_JA 0x00 1370 #define BPF_JEQ 0x10 1371 #define BPF_JGT 0x20 1372 #define BPF_JGE 0x30 1373 #define BPF_JSET 0x40 1374 #define BPF_SRC(code) ((code) & 0x08) 1375 #define BPF_K 0x00 1376 #define BPF_X 0x08 1377 1378 /* ret - BPF_K and BPF_X also apply */ 1379 #define BPF_RVAL(code) ((code) & 0x18) 1380 #define BPF_A 0x10 1381 1382 /* misc */ 1383 #define BPF_MISCOP(code) ((code) & 0xf8) 1384 #define BPF_TAX 0x00 1385 #define BPF_TXA 0x80 1386 1387 /* 1388 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 1389 */ 1390 #define BPF_MEMWORDS 16 1391 1392 /* 1393 * The instruction data structure. 1394 */ 1395 struct bpf_insn { 1396 u_short code; 1397 u_char jt; 1398 u_char jf; 1399 bpf_u_int32 k; 1400 }; 1401 1402 /* 1403 * Macros for insn array initializers. 1404 */ 1405 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } 1406 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } 1407 1408 #pragma pack(4) 1409 1410 /* 1411 * Structure to retrieve available DLTs for the interface. 1412 */ 1413 struct bpf_dltlist { 1414 u_int32_t bfl_len; /* number of bfd_list array */ 1415 union { 1416 u_int32_t *bflu_list; /* array of DLTs */ 1417 u_int64_t bflu_pad; 1418 } bfl_u; 1419 }; 1420 #define bfl_list bfl_u.bflu_list 1421 1422 #pragma pack() 1423 1424 #ifdef KERNEL_PRIVATE 1425 #define BPF_MIN_PKT_SIZE 40 1426 #define PORT_DNS 53 1427 #define PORT_BOOTPS 67 1428 #define PORT_BOOTPC 68 1429 #define PORT_ISAKMP 500 1430 #define PORT_ISAKMP_NATT 4500 /* rfc3948 */ 1431 1432 /* Forward declerations */ 1433 struct ifnet; 1434 struct mbuf; 1435 1436 #define BPF_PACKET_TYPE_MBUF 0 1437 #if SKYWALK 1438 #define BPF_PACKET_TYPE_PKT 1 1439 #include <skywalk/os_skywalk.h> 1440 #endif /* SKYWALK */ 1441 1442 struct bpf_packet { 1443 int bpfp_type; 1444 void * bpfp_header; /* optional */ 1445 size_t bpfp_header_length; 1446 union { 1447 struct mbuf *bpfpu_mbuf; 1448 void * bpfpu_ptr; 1449 #if SKYWALK 1450 kern_packet_t bpfpu_pkt; 1451 #define bpfp_pkt bpfp_u.bpfpu_pkt 1452 #endif /* SKYWALK */ 1453 } bpfp_u; 1454 #define bpfp_mbuf bpfp_u.bpfpu_mbuf 1455 #define bpfp_ptr bpfp_u.bpfpu_ptr 1456 size_t bpfp_total_length; /* length including optional header */ 1457 }; 1458 1459 extern int bpf_validate(const struct bpf_insn *, int); 1460 extern void bpfdetach(struct ifnet *); 1461 extern void bpfilterattach(int); 1462 extern u_int bpf_filter(const struct bpf_insn *, u_char *, u_int, u_int); 1463 #endif /* KERNEL_PRIVATE */ 1464 1465 #endif /* !defined(DRIVERKIT) */ 1466 1467 #if defined(DRIVERKIT) || defined(KERNEL) 1468 #ifndef BPF_TAP_MODE_T 1469 #define BPF_TAP_MODE_T 1470 /*! 1471 * @enum BPF tap mode 1472 * @abstract Constants defining interface families. 1473 * @constant BPF_MODE_DISABLED Disable bpf. 1474 * @constant BPF_MODE_INPUT Enable input only. 1475 * @constant BPF_MODE_OUTPUT Enable output only. 1476 * @constant BPF_MODE_INPUT_OUTPUT Enable input and output. 1477 */ 1478 1479 enum { 1480 BPF_MODE_DISABLED = 0, 1481 BPF_MODE_INPUT = 1, 1482 BPF_MODE_OUTPUT = 2, 1483 BPF_MODE_INPUT_OUTPUT = 3 1484 }; 1485 /*! 1486 * @typedef bpf_tap_mode 1487 * @abstract Mode for tapping. BPF_MODE_DISABLED/BPF_MODE_INPUT_OUTPUT etc. 1488 */ 1489 typedef uint32_t bpf_tap_mode; 1490 #endif /* !BPF_TAP_MODE_T */ 1491 #endif /* defined(DRIVERKIT) || defined(KERNEL) */ 1492 1493 #ifdef KERNEL 1494 /*! 1495 * @typedef bpf_send_func 1496 * @discussion bpf_send_func is called when a bpf file descriptor is 1497 * used to send a raw packet on the interface. The mbuf and data 1498 * link type are specified. The callback is responsible for 1499 * releasing the mbuf whether or not it returns an error. 1500 * @param interface The interface the packet is being sent on. 1501 * @param data_link_type The data link type the bpf device is attached to. 1502 * @param packet The packet to be sent. 1503 */ 1504 typedef errno_t (*bpf_send_func)(ifnet_t interface, u_int32_t data_link_type, 1505 mbuf_t packet); 1506 1507 /*! 1508 * @typedef bpf_tap_func 1509 * @discussion bpf_tap_func is called when the tap state of the 1510 * interface changes. This happens when a bpf device attaches to an 1511 * interface or detaches from an interface. The tap mode will join 1512 * together (bit or) the modes of all bpf devices using that 1513 * interface for that dlt. If you return an error from this 1514 * function, the bpf device attach attempt that triggered the tap 1515 * will fail. If this function was called bacuse the tap state was 1516 * decreasing (tap in or out is stopping), the error will be 1517 * ignored. 1518 * @param interface The interface being tapped. 1519 * @param data_link_type The data link type being tapped. 1520 * @param direction The direction of the tap. 1521 */ 1522 typedef errno_t (*bpf_tap_func)(ifnet_t interface, u_int32_t data_link_type, 1523 bpf_tap_mode direction); 1524 1525 /*! 1526 * @function bpfattach 1527 * @discussion Registers an interface with BPF. This allows bpf devices 1528 * to attach to your interface to capture packets. Your interface 1529 * will be unregistered automatically when your interface is 1530 * detached. 1531 * @param interface The interface to register with BPF. 1532 * @param data_link_type The data link type of the interface. See the 1533 * DLT_* defines in bpf.h. 1534 * @param header_length The length, in bytes, of the data link header. 1535 */ 1536 extern void bpfattach(ifnet_t interface, u_int data_link_type, 1537 u_int header_length); 1538 1539 /*! 1540 * @function bpf_attach 1541 * @discussion Registers an interface with BPF. This allows bpf devices 1542 * to attach to your interface to capture and transmit packets. 1543 * Your interface will be unregistered automatically when your 1544 * interface is detached. You may register multiple times with 1545 * different data link types. An 802.11 interface would use this to 1546 * allow clients to pick whether they want just an ethernet style 1547 * frame or the 802.11 wireless headers as well. The first dlt you 1548 * register will be considered the default. Any bpf device attaches 1549 * that do not specify a data link type will use the default. 1550 * @param interface The interface to register with BPF. 1551 * @param data_link_type The data link type of the interface. See the 1552 * DLT_* defines in bpf.h. 1553 * @param header_length The length, in bytes, of the data link header. 1554 * @param send See the bpf_send_func described above. 1555 * @param tap See the bpf_tap_func described above. 1556 */ 1557 extern errno_t bpf_attach(ifnet_t interface, u_int32_t data_link_type, 1558 u_int32_t header_length, bpf_send_func send, bpf_tap_func tap); 1559 1560 /*! 1561 * @function bpf_tap_in 1562 * @discussion Call this function when your interface receives a 1563 * packet. This function will check if any bpf devices need a 1564 * a copy of the packet. 1565 * @param interface The interface the packet was received on. 1566 * @param dlt The data link type of the packet. 1567 * @param packet The packet received. 1568 * @param header An optional pointer to a header that will be prepended. 1569 * @param header_len If the header was specified, the length of the header. 1570 */ 1571 extern void bpf_tap_in(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1572 void *header, size_t header_len); 1573 1574 /*! 1575 * @function bpf_tap_out 1576 * @discussion Call this function when your interface transmits a 1577 * packet. This function will check if any bpf devices need a 1578 * a copy of the packet. 1579 * @param interface The interface the packet was or will be transmitted on. 1580 * @param dlt The data link type of the packet. 1581 * @param packet The packet received. 1582 * @param header An optional pointer to a header that will be prepended. 1583 * @param header_len If the header was specified, the length of the header. 1584 */ 1585 extern void bpf_tap_out(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1586 void *header, size_t header_len); 1587 1588 #if SKYWALK 1589 /*! 1590 * @function bpf_tap_packet_in 1591 * @discussion Call this function when your interface receives a 1592 * packet. This function will check if any bpf devices need a 1593 * a copy of the packet. 1594 * @param interface The interface the packet was received on. 1595 * @param dlt The data link type of the packet. 1596 * @param packet The packet received. 1597 * @param header An optional pointer to a header that will be prepended. 1598 * @param header_len If the header was specified, the length of the header. 1599 */ 1600 extern void bpf_tap_packet_in(ifnet_t interface, u_int32_t dlt, 1601 kern_packet_t packet, void *header, size_t header_len); 1602 1603 /*! 1604 * @function bpf_tap_packet_out 1605 * @discussion Call this function when your interface transmits a 1606 * packet. This function will check if any bpf devices need a 1607 * a copy of the packet. 1608 * @param interface The interface the packet was or will be transmitted on. 1609 * @param dlt The data link type of the packet. 1610 * @param packet The packet received. 1611 * @param header An optional pointer to a header that will be prepended. 1612 * @param header_len If the header was specified, the length of the header. 1613 */ 1614 extern void bpf_tap_packet_out(ifnet_t interface, u_int32_t dlt, 1615 kern_packet_t packet, void *header, size_t header_len); 1616 1617 #endif /* SKYWALK */ 1618 #endif /* KERNEL */ 1619 1620 #endif /* _NET_BPF_H_ */ 1621