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 #define BIOCGDIRECTION _IOR('B', 138, int) 273 #define BIOCSDIRECTION _IOW('B', 139, int) 274 #define BIOCSWRITEMAX _IOW('B', 140, u_int) 275 #define BIOCGWRITEMAX _IOR('B', 141, u_int) 276 #define BIOCGBATCHWRITE _IOR('B', 142, int) 277 #define BIOCSBATCHWRITE _IOW('B', 143, int) 278 #define BIOCGNOTSTAMP _IOR('B', 144, int) 279 #define BIOCSNOTSTAMP _IOW('B', 145, int) 280 #define BIOCGDVRTIN _IOR('B', 146, int) 281 #define BIOCSDVRTIN _IOW('B', 146, int) 282 #endif /* PRIVATE */ 283 284 /* 285 * Structure prepended to each packet. 286 */ 287 struct bpf_hdr { 288 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 289 bpf_u_int32 bh_caplen; /* length of captured portion */ 290 bpf_u_int32 bh_datalen; /* original length of packet */ 291 u_short bh_hdrlen; /* length of bpf header (this struct 292 * plus alignment padding) */ 293 }; 294 #ifdef KERNEL 295 /* 296 * Because the structure above is not a multiple of 4 bytes, some compilers 297 * will insist on inserting padding; hence, sizeof(struct bpf_hdr) won't work. 298 * Only the kernel needs to know about it; applications use bh_hdrlen. 299 */ 300 #define SIZEOF_BPF_HDR (sizeof(struct bpf_hdr) <= 20 ? 18 : \ 301 sizeof(struct bpf_hdr)) 302 #endif 303 #ifdef PRIVATE 304 /* 305 * This structure must be a multiple of 4 bytes. 306 * It includes padding and spare fields that we can use later if desired. 307 */ 308 struct bpf_hdr_ext { 309 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 310 bpf_u_int32 bh_caplen; /* length of captured portion */ 311 bpf_u_int32 bh_datalen; /* original length of packet */ 312 u_short bh_hdrlen; /* length of bpf header */ 313 u_char bh_complen; 314 u_char bh_flags; 315 #define BPF_HDR_EXT_FLAGS_DIR_IN 0x00 316 #define BPF_HDR_EXT_FLAGS_DIR_OUT 0x01 317 #ifdef BSD_KERNEL_PRIVATE 318 #define BPF_HDR_EXT_FLAGS_TCP 0x02 319 #define BPF_HDR_EXT_FLAGS_UDP 0x04 320 #endif /* BSD_KERNEL_PRIVATE */ 321 pid_t bh_pid; /* process PID */ 322 char bh_comm[MAXCOMLEN + 1]; /* process command */ 323 u_char bh_pktflags; 324 #define BPF_PKTFLAGS_TCP_REXMT 0x01 325 #define BPF_PKTFLAGS_START_SEQ 0x02 326 #define BPF_PKTFLAGS_LAST_PKT 0x04 327 #define BPF_PKTFLAGS_WAKE_PKT 0x08 328 uint16_t bh_trace_tag; 329 bpf_u_int32 bh_svc; /* service class */ 330 bpf_u_int32 bh_flowid; /* kernel reserved; 0 in userland */ 331 bpf_u_int32 bh_unsent_bytes; /* unsent bytes at interface */ 332 bpf_u_int32 bh_unsent_snd; /* unsent bytes at socket buffer */ 333 }; 334 335 #define BPF_HDR_EXT_HAS_TRACE_TAG 1 336 337 /* 338 * External representation of the bpf descriptor 339 */ 340 struct xbpf_d { 341 uint32_t bd_structsize; /* Size of this structure. */ 342 int32_t bd_dev_minor; 343 int32_t bd_sig; 344 uint32_t bd_slen; 345 uint32_t bd_hlen; 346 uint32_t bd_bufsize; 347 pid_t bd_pid; 348 349 uint8_t bd_promisc; 350 uint8_t bd_immediate; 351 uint8_t bd_hdrcmplt; 352 uint8_t bd_async; 353 354 uint8_t bd_headdrop; 355 uint8_t bd_direction; 356 uint8_t bh_compreq; 357 uint8_t bh_compenabled; 358 359 uint8_t bd_exthdr; 360 uint8_t bd_trunc; 361 uint8_t bd_pkthdrv2; 362 uint8_t bd_batch_write : 1; 363 uint8_t bd_divert_in : 1; 364 uint8_t bd_padding : 6; 365 366 uint64_t bd_rcount; 367 uint64_t bd_dcount; 368 uint64_t bd_fcount; 369 uint64_t bd_wcount; 370 uint64_t bd_wdcount; 371 372 char bd_ifname[IFNAMSIZ]; 373 374 uint64_t bd_comp_count; 375 uint64_t bd_comp_size; 376 377 uint32_t bd_scnt; /* number of packets in store buffer */ 378 uint32_t bd_hcnt; /* number of packets in hold buffer */ 379 380 uint64_t bd_read_count; 381 uint64_t bd_fsize; 382 }; 383 384 #ifndef bd_seesent 385 /* 386 * Code compatibility workaround so that old versions of network_cmds will continue to build 387 * even if netstat -B shows an incorrect value. 388 */ 389 #define bd_seesent bd_direction 390 #endif /* bd_seesent */ 391 392 #define _HAS_STRUCT_XBPF_D_ 2 393 394 struct bpf_comp_hdr { 395 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 396 bpf_u_int32 bh_caplen; /* length of captured portion */ 397 bpf_u_int32 bh_datalen; /* original length of packet */ 398 u_short bh_hdrlen; /* length of bpf header (this struct 399 * plus alignment padding) */ 400 u_char bh_complen; /* data portion compressed */ 401 u_char bh_padding; /* data portion compressed */ 402 }; 403 404 #define HAS_BPF_HDR_COMP 1 405 #define BPF_HDR_COMP_LEN_MAX 255 406 407 /* 408 * Packet tap directions 409 */ 410 #define BPF_D_NONE 0x0 /* See no packet (for writing only) */ 411 #define BPF_D_IN 0x1 /* See incoming packets */ 412 #define BPF_D_OUT 0x2 /* See outgoing packets */ 413 #define BPF_D_INOUT 0x3 /* See incoming and outgoing packets */ 414 415 #endif /* PRIVATE */ 416 #endif /* !defined(DRIVERKIT) */ 417 418 /* 419 * Data-link level type codes. 420 */ 421 #define DLT_NULL 0 /* no link-layer encapsulation */ 422 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 423 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 424 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 425 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 426 #define DLT_CHAOS 5 /* Chaos */ 427 #define DLT_IEEE802 6 /* IEEE 802 Networks */ 428 #define DLT_ARCNET 7 /* ARCNET */ 429 #define DLT_SLIP 8 /* Serial Line IP */ 430 #define DLT_PPP 9 /* Point-to-point Protocol */ 431 #define DLT_FDDI 10 /* FDDI */ 432 #define DLT_ATM_RFC1483 11 /* LLC/SNAP encapsulated atm */ 433 #define DLT_RAW 12 /* raw IP */ 434 435 /* 436 * These are values from BSD/OS's "bpf.h". 437 * These are not the same as the values from the traditional libpcap 438 * "bpf.h"; however, these values shouldn't be generated by any 439 * OS other than BSD/OS, so the correct values to use here are the 440 * BSD/OS values. 441 * 442 * Platforms that have already assigned these values to other 443 * DLT_ codes, however, should give these codes the values 444 * from that platform, so that programs that use these codes will 445 * continue to compile - even though they won't correctly read 446 * files of these types. 447 */ 448 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 449 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 450 451 /* 452 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is. 453 * 454 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG 455 * as 117 so that pflog captures would use a link-layer header type 456 * value that didn't collide with any other values. On all 457 * platforms other than OpenBSD, we defined DLT_PFLOG as 117, 458 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG. 459 * 460 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well. 461 * 462 * Don't use 17 for anything else. 463 */ 464 465 /* 466 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and 467 * Mac OS X; don't use it for anything else. (FreeBSD uses 121, 468 * which collides with DLT_HHDLC, even though it doesn't use 18 469 * for anything and doesn't appear to have ever used it for anything.) 470 * 471 * We define it as 18 on those platforms; it is, unfortunately, used 472 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC 473 * in general. As the packet format for it, like that for 474 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent, 475 * we don't support printing it in tcpdump except on OSes that 476 * have the relevant header files, so it's not that useful on 477 * other platforms. 478 */ 479 #define DLT_PFSYNC 18 /* Packet filter state syncing */ 480 481 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 482 483 /* 484 * These values are defined by NetBSD; other platforms should refrain from 485 * using them for other purposes, so that NetBSD savefiles with link 486 * types of 50 or 51 can be read as this type on all platforms. 487 */ 488 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 489 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 490 491 /* 492 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 493 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 494 * header has 6 bytes of unknown data, something that appears to be an 495 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 496 * I've seen. 497 */ 498 #define DLT_SYMANTEC_FIREWALL 99 499 500 /* 501 * Values between 100 and 103 are used in capture file headers as 502 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 503 * that differ between platforms; don't use those values for new DLT_ 504 * new types. 505 */ 506 507 /* 508 * Values starting with 104 are used for newly-assigned link-layer 509 * header type values; for those link-layer header types, the DLT_ 510 * value returned by pcap_datalink() and passed to pcap_open_dead(), 511 * and the LINKTYPE_ value that appears in capture files, are the 512 * same. 513 * 514 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 515 * the highest such value. 516 */ 517 #define DLT_MATCHING_MIN 104 518 519 /* 520 * This value was defined by libpcap 0.5; platforms that have defined 521 * it with a different value should define it here with that value - 522 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 523 * whatever value that happens to be, so programs will correctly 524 * handle files with that link type regardless of the value of 525 * DLT_C_HDLC. 526 * 527 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 528 * compatibility with programs written for BSD/OS. 529 * 530 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 531 * for source compatibility with programs written for libpcap 0.5. 532 */ 533 #define DLT_C_HDLC 104 /* Cisco HDLC */ 534 #define DLT_CHDLC DLT_C_HDLC 535 536 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 537 538 /* 539 * Values between 106 and 107 are used in capture file headers as 540 * link-layer types corresponding to DLT_ types that might differ 541 * between platforms; don't use those values for new DLT_ new types. 542 */ 543 544 /* 545 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 546 * with other values. 547 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 548 * (DLCI, etc.). 549 */ 550 #define DLT_FRELAY 107 551 552 /* 553 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 554 * that the AF_ type in the link-layer header is in network byte order. 555 * 556 * OpenBSD defines it as 12, but that collides with DLT_RAW, so we 557 * define it as 108 here. If OpenBSD picks up this file, it should 558 * define DLT_LOOP as 12 in its version, as per the comment above - 559 * and should not use 108 for any purpose. 560 */ 561 #define DLT_LOOP 108 562 563 /* 564 * Values between 109 and 112 are used in capture file headers as 565 * link-layer types corresponding to DLT_ types that might differ 566 * between platforms; don't use those values for new DLT_ new types. 567 */ 568 569 /* 570 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 571 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 572 * than OpenBSD. 573 */ 574 #define DLT_ENC 109 575 576 /* 577 * This is for Linux cooked sockets. 578 */ 579 #define DLT_LINUX_SLL 113 580 581 /* 582 * Apple LocalTalk hardware. 583 */ 584 #define DLT_LTALK 114 585 586 /* 587 * Acorn Econet. 588 */ 589 #define DLT_ECONET 115 590 591 /* 592 * Reserved for use with OpenBSD ipfilter. 593 */ 594 #define DLT_IPFILTER 116 595 596 /* 597 * For use in capture-file headers as a link-layer type corresponding 598 * to OpenBSD PF (Packet Filter) log. 599 */ 600 #define DLT_PFLOG 117 601 602 /* 603 * Registered for Cisco-internal use. 604 */ 605 #define DLT_CISCO_IOS 118 606 607 /* 608 * Reserved for 802.11 cards using the Prism II chips, with a link-layer 609 * header including Prism monitor mode information plus an 802.11 610 * header. 611 */ 612 #define DLT_PRISM_HEADER 119 613 614 /* 615 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 616 * (see Doug Ambrisko's FreeBSD patches). 617 */ 618 #define DLT_AIRONET_HEADER 120 619 620 /* 621 * Reserved for Siemens HiPath HDLC. XXX 622 */ 623 #define DLT_HHDLC 121 624 625 /* 626 * Reserved for RFC 2625 IP-over-Fibre Channel. 627 */ 628 #define DLT_IP_OVER_FC 122 629 630 /* 631 * Reserved for Full Frontal ATM on Solaris. 632 */ 633 #define DLT_SUNATM 123 634 635 /* 636 * Reserved as per request from Kent Dahlgren <[email protected]> 637 * for private use. 638 */ 639 #define DLT_RIO 124 /* RapidIO */ 640 #define DLT_PCI_EXP 125 /* PCI Express */ 641 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 642 643 /* 644 * BSD header for 802.11 plus a number of bits of link-layer information 645 * including radio information. 646 */ 647 #ifndef DLT_IEEE802_11_RADIO 648 #define DLT_IEEE802_11_RADIO 127 649 #endif 650 651 /* 652 * Reserved for TZSP encapsulation. 653 */ 654 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 655 656 /* 657 * Reserved for Linux ARCNET. 658 */ 659 #define DLT_ARCNET_LINUX 129 660 661 /* 662 * Juniper-private data link types. 663 */ 664 #define DLT_JUNIPER_MLPPP 130 665 #define DLT_JUNIPER_MLFR 131 666 #define DLT_JUNIPER_ES 132 667 #define DLT_JUNIPER_GGSN 133 668 #define DLT_JUNIPER_MFR 134 669 #define DLT_JUNIPER_ATM2 135 670 #define DLT_JUNIPER_SERVICES 136 671 #define DLT_JUNIPER_ATM1 137 672 673 /* 674 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 675 * <[email protected]>. The header that's presented is an Ethernet-like 676 * header: 677 * 678 * #define FIREWIRE_EUI64_LEN 8 679 * struct firewire_header { 680 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 681 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 682 * u_short firewire_type; 683 * }; 684 * 685 * with "firewire_type" being an Ethernet type value, rather than, 686 * for example, raw GASP frames being handed up. 687 */ 688 #define DLT_APPLE_IP_OVER_IEEE1394 138 689 690 /* 691 * Various SS7 encapsulations, as per a request from Jeff Morriss 692 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 693 */ 694 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 695 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 696 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 697 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 698 699 /* 700 * Reserved for DOCSIS. 701 */ 702 #define DLT_DOCSIS 143 703 704 /* 705 * Reserved for Linux IrDA. 706 */ 707 #define DLT_LINUX_IRDA 144 708 709 /* 710 * Reserved for IBM SP switch and IBM Next Federation switch. 711 */ 712 #define DLT_IBM_SP 145 713 #define DLT_IBM_SN 146 714 715 /* 716 * Reserved for private use. If you have some link-layer header type 717 * that you want to use within your organization, with the capture files 718 * using that link-layer header type not ever be sent outside your 719 * organization, you can use these values. 720 * 721 * No libpcap release will use these for any purpose, nor will any 722 * tcpdump release use them, either. 723 * 724 * Do *NOT* use these in capture files that you expect anybody not using 725 * your private versions of capture-file-reading tools to read; in 726 * particular, do *NOT* use them in products, otherwise you may find that 727 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 728 * read capture files from your firewall/intrusion detection/traffic 729 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 730 * and you may also find that the developers of those applications will 731 * not accept patches to let them read those files. 732 * 733 * Also, do not use them if somebody might send you a capture using them 734 * for *their* private type and tools using them for *your* private type 735 * would have to read them. 736 * 737 * Instead, ask "[email protected]" for a new DLT_ value, 738 * as per the comment above, and use the type you're given. 739 */ 740 #define DLT_USER0 147 741 #define DLT_USER1 148 742 #define DLT_USER2 149 743 #define DLT_USER3 150 744 #define DLT_USER4 151 745 #define DLT_USER5 152 746 #define DLT_USER6 153 747 #define DLT_USER7 154 748 #define DLT_USER8 155 749 #define DLT_USER9 156 750 #define DLT_USER10 157 751 #define DLT_USER11 158 752 #define DLT_USER12 159 753 #define DLT_USER13 160 754 #define DLT_USER14 161 755 #define DLT_USER15 162 756 757 #ifdef PRIVATE 758 /* 759 * For Apple private usage 760 */ 761 #define DLT_USER0_APPLE_INTERNAL DLT_USER0 /* rdar://12019509 */ 762 #define DLT_USER1_APPLE_INTERNAL DLT_USER1 /* rdar://12019509 */ 763 #define DLT_PKTAP DLT_USER2 /* rdar://11779467 */ 764 #define DLT_USER3_APPLE_INTERNAL DLT_USER3 /* rdar://19614531 */ 765 #define DLT_USER4_APPLE_INTERNAL DLT_USER4 /* rdar://19614531 */ 766 #endif /* PRIVATE */ 767 768 /* 769 * For future use with 802.11 captures - defined by AbsoluteValue 770 * Systems to store a number of bits of link-layer information 771 * including radio information: 772 * 773 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 774 * 775 * but it might be used by some non-AVS drivers now or in the 776 * future. 777 */ 778 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 779 780 /* 781 * Juniper-private data link type, as per request from 782 * Hannes Gredler <[email protected]>. The DLT_s are used 783 * for passing on chassis-internal metainformation such as 784 * QOS profiles, etc.. 785 */ 786 #define DLT_JUNIPER_MONITOR 164 787 788 /* 789 * Reserved for BACnet MS/TP. 790 */ 791 #define DLT_BACNET_MS_TP 165 792 793 /* 794 * Another PPP variant as per request from Karsten Keil <[email protected]>. 795 * 796 * This is used in some OSes to allow a kernel socket filter to distinguish 797 * between incoming and outgoing packets, on a socket intended to 798 * supply pppd with outgoing packets so it can do dial-on-demand and 799 * hangup-on-lack-of-demand; incoming packets are filtered out so they 800 * don't cause pppd to hold the connection up (you don't want random 801 * input packets such as port scans, packets from old lost connections, 802 * etc. to force the connection to stay up). 803 * 804 * The first byte of the PPP header (0xff03) is modified to accomodate 805 * the direction - 0x00 = IN, 0x01 = OUT. 806 */ 807 #define DLT_PPP_PPPD 166 808 809 /* 810 * Names for backwards compatibility with older versions of some PPP 811 * software; new software should use DLT_PPP_PPPD. 812 */ 813 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 814 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 815 816 /* 817 * Juniper-private data link type, as per request from 818 * Hannes Gredler <[email protected]>. The DLT_s are used 819 * for passing on chassis-internal metainformation such as 820 * QOS profiles, cookies, etc.. 821 */ 822 #define DLT_JUNIPER_PPPOE 167 823 #define DLT_JUNIPER_PPPOE_ATM 168 824 825 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 826 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 827 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 828 829 /* 830 * Requested by Oolan Zimmer <[email protected]> for use in Gcom's T1/E1 line 831 * monitoring equipment. 832 */ 833 #define DLT_GCOM_T1E1 172 834 #define DLT_GCOM_SERIAL 173 835 836 /* 837 * Juniper-private data link type, as per request from 838 * Hannes Gredler <[email protected]>. The DLT_ is used 839 * for internal communication to Physical Interface Cards (PIC) 840 */ 841 #define DLT_JUNIPER_PIC_PEER 174 842 843 /* 844 * Link types requested by Gregor Maier <[email protected]> of Endace 845 * Measurement Systems. They add an ERF header (see 846 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 847 * the link-layer header. 848 */ 849 #define DLT_ERF_ETH 175 /* Ethernet */ 850 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 851 852 /* 853 * Requested by Daniele Orlandi <[email protected]> for raw LAPD 854 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 855 * includes additional information before the LAPD header, so it's 856 * not necessarily a generic LAPD header. 857 */ 858 #define DLT_LINUX_LAPD 177 859 860 /* 861 * Juniper-private data link type, as per request from 862 * Hannes Gredler <[email protected]>. 863 * The DLT_ are used for prepending meta-information 864 * like interface index, interface name 865 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 866 */ 867 #define DLT_JUNIPER_ETHER 178 868 #define DLT_JUNIPER_PPP 179 869 #define DLT_JUNIPER_FRELAY 180 870 #define DLT_JUNIPER_CHDLC 181 871 872 /* 873 * Multi Link Frame Relay (FRF.16) 874 */ 875 #define DLT_MFR 182 876 877 /* 878 * Juniper-private data link type, as per request from 879 * Hannes Gredler <[email protected]>. 880 * The DLT_ is used for internal communication with a 881 * voice Adapter Card (PIC) 882 */ 883 #define DLT_JUNIPER_VP 183 884 885 /* 886 * Arinc 429 frames. 887 * DLT_ requested by Gianluca Varenni <[email protected]>. 888 * Every frame contains a 32bit A429 label. 889 * More documentation on Arinc 429 can be found at 890 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 891 */ 892 #define DLT_A429 184 893 894 /* 895 * Arinc 653 Interpartition Communication messages. 896 * DLT_ requested by Gianluca Varenni <[email protected]>. 897 * Please refer to the A653-1 standard for more information. 898 */ 899 #define DLT_A653_ICM 185 900 901 /* 902 * USB packets, beginning with a USB setup header; requested by 903 * Paolo Abeni <[email protected]>. 904 */ 905 #define DLT_USB 186 906 907 /* 908 * Bluetooth HCI UART transport layer (part H:4); requested by 909 * Paolo Abeni. 910 */ 911 #define DLT_BLUETOOTH_HCI_H4 187 912 913 /* 914 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 915 * <[email protected]>. 916 */ 917 #define DLT_IEEE802_16_MAC_CPS 188 918 919 /* 920 * USB packets, beginning with a Linux USB header; requested by 921 * Paolo Abeni <[email protected]>. 922 */ 923 #define DLT_USB_LINUX 189 924 925 /* 926 * Controller Area Network (CAN) v. 2.0B packets. 927 * DLT_ requested by Gianluca Varenni <[email protected]>. 928 * Used to dump CAN packets coming from a CAN Vector board. 929 * More documentation on the CAN v2.0B frames can be found at 930 * http://www.can-cia.org/downloads/?269 931 */ 932 #define DLT_CAN20B 190 933 934 /* 935 * IEEE 802.15.4, with address fields padded, as is done by Linux 936 * drivers; requested by Juergen Schimmer. 937 */ 938 #define DLT_IEEE802_15_4_LINUX 191 939 940 /* 941 * Per Packet Information encapsulated packets. 942 * DLT_ requested by Gianluca Varenni <[email protected]>. 943 */ 944 #define DLT_PPI 192 945 946 /* 947 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 948 * requested by Charles Clancy. 949 */ 950 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 951 952 /* 953 * Juniper-private data link type, as per request from 954 * Hannes Gredler <[email protected]>. 955 * The DLT_ is used for internal communication with a 956 * integrated service module (ISM). 957 */ 958 #define DLT_JUNIPER_ISM 194 959 960 /* 961 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 962 * nothing); requested by Mikko Saarnivala <[email protected]>. 963 */ 964 #define DLT_IEEE802_15_4 195 965 966 /* 967 * Various link-layer types, with a pseudo-header, for SITA 968 * (http://www.sita.aero/); requested by Fulko Hew ([email protected]). 969 */ 970 #define DLT_SITA 196 971 972 /* 973 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 974 * encapsulates Endace ERF records. Requested by Stephen Donnelly 975 * <[email protected]>. 976 */ 977 #define DLT_ERF 197 978 979 /* 980 * Special header prepended to Ethernet packets when capturing from a 981 * u10 Networks board. Requested by Phil Mulholland 982 * <[email protected]>. 983 */ 984 #define DLT_RAIF1 198 985 986 /* 987 * IPMB packet for IPMI, beginning with the I2C slave address, followed 988 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 989 * <[email protected]>. 990 */ 991 #define DLT_IPMB 199 992 993 /* 994 * Juniper-private data link type, as per request from 995 * Hannes Gredler <[email protected]>. 996 * The DLT_ is used for capturing data on a secure tunnel interface. 997 */ 998 #define DLT_JUNIPER_ST 200 999 1000 /* 1001 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 1002 * that includes direction information; requested by Paolo Abeni. 1003 */ 1004 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 1005 1006 /* 1007 * AX.25 packet with a 1-byte KISS header; see 1008 * 1009 * http://www.ax25.net/kiss.htm 1010 * 1011 * as per Richard Stearn <[email protected]>. 1012 */ 1013 #define DLT_AX25_KISS 202 1014 1015 /* 1016 * LAPD packets from an ISDN channel, starting with the address field, 1017 * with no pseudo-header. 1018 * Requested by Varuna De Silva <[email protected]>. 1019 */ 1020 #define DLT_LAPD 203 1021 1022 /* 1023 * Variants of various link-layer headers, with a one-byte direction 1024 * pseudo-header prepended - zero means "received by this host", 1025 * non-zero (any non-zero value) means "sent by this host" - as per 1026 * Will Barker <[email protected]>. 1027 */ 1028 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */ 1029 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */ 1030 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */ 1031 #define DLT_LAPB_WITH_DIR 207 /* LAPB */ 1032 1033 /* 1034 * 208 is reserved for an as-yet-unspecified proprietary link-layer 1035 * type, as requested by Will Barker. 1036 */ 1037 1038 /* 1039 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 1040 * <[email protected]>. 1041 */ 1042 #define DLT_IPMB_LINUX 209 1043 1044 /* 1045 * FlexRay automotive bus - http://www.flexray.com/ - as requested 1046 * by Hannes Kaelber <[email protected]>. 1047 */ 1048 #define DLT_FLEXRAY 210 1049 1050 /* 1051 * Media Oriented Systems Transport (MOST) bus for multimedia 1052 * transport - http://www.mostcooperation.com/ - as requested 1053 * by Hannes Kaelber <[email protected]>. 1054 */ 1055 #define DLT_MOST 211 1056 1057 /* 1058 * Local Interconnect Network (LIN) bus for vehicle networks - 1059 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 1060 * <[email protected]>. 1061 */ 1062 #define DLT_LIN 212 1063 1064 /* 1065 * X2E-private data link type used for serial line capture, 1066 * as requested by Hannes Kaelber <[email protected]>. 1067 */ 1068 #define DLT_X2E_SERIAL 213 1069 1070 /* 1071 * X2E-private data link type used for the Xoraya data logger 1072 * family, as requested by Hannes Kaelber <[email protected]>. 1073 */ 1074 #define DLT_X2E_XORAYA 214 1075 1076 /* 1077 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1078 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 1079 * of 0 as preamble, one octet of SFD, one octet of frame length+ 1080 * reserved bit, and then the MAC-layer data, starting with the 1081 * frame control field). 1082 * 1083 * Requested by Max Filippov <[email protected]>. 1084 */ 1085 #define DLT_IEEE802_15_4_NONASK_PHY 215 1086 1087 /* 1088 * David Gibson <[email protected]> requested this for 1089 * captures from the Linux kernel /dev/input/eventN devices. This 1090 * is used to communicate keystrokes and mouse movements from the 1091 * Linux kernel to display systems, such as Xorg. 1092 */ 1093 #define DLT_LINUX_EVDEV 216 1094 1095 /* 1096 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 1097 * 1098 * Requested by Harald Welte <[email protected]>. 1099 */ 1100 #define DLT_GSMTAP_UM 217 1101 #define DLT_GSMTAP_ABIS 218 1102 1103 /* 1104 * MPLS, with an MPLS label as the link-layer header. 1105 * Requested by Michele Marchetto <[email protected]> on behalf 1106 * of OpenBSD. 1107 */ 1108 #define DLT_MPLS 219 1109 1110 /* 1111 * USB packets, beginning with a Linux USB header, with the USB header 1112 * padded to 64 bytes; required for memory-mapped access. 1113 */ 1114 #define DLT_USB_LINUX_MMAPPED 220 1115 1116 /* 1117 * DECT packets, with a pseudo-header; requested by 1118 * Matthias Wenzel <[email protected]>. 1119 */ 1120 #define DLT_DECT 221 1121 1122 /* 1123 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <[email protected]> 1124 * Date: Mon, 11 May 2009 11:18:30 -0500 1125 * 1126 * DLT_AOS. We need it for AOS Space Data Link Protocol. 1127 * I have already written dissectors for but need an OK from 1128 * legal before I can submit a patch. 1129 * 1130 */ 1131 #define DLT_AOS 222 1132 1133 /* 1134 * Wireless HART (Highway Addressable Remote Transducer) 1135 * From the HART Communication Foundation 1136 * IES/PAS 62591 1137 * 1138 * Requested by Sam Roberts <[email protected]>. 1139 */ 1140 #define DLT_WIHART 223 1141 1142 /* 1143 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 1144 * Requested by Kahou Lei <[email protected]>. 1145 */ 1146 #define DLT_FC_2 224 1147 1148 /* 1149 * Fibre Channel FC-2 frames, beginning with an encoding of the 1150 * SOF, and ending with an encoding of the EOF. 1151 * 1152 * The encodings represent the frame delimiters as 4-byte sequences 1153 * representing the corresponding ordered sets, with K28.5 1154 * represented as 0xBC, and the D symbols as the corresponding 1155 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 1156 * is represented as 0xBC 0xB5 0x55 0x55. 1157 * 1158 * Requested by Kahou Lei <[email protected]>. 1159 */ 1160 #define DLT_FC_2_WITH_FRAME_DELIMS 225 1161 1162 /* 1163 * Solaris ipnet pseudo-header; requested by Darren Reed <[email protected]>. 1164 * 1165 * The pseudo-header starts with a one-byte version number; for version 2, 1166 * the pseudo-header is: 1167 * 1168 * struct dl_ipnetinfo { 1169 * u_int8_t dli_version; 1170 * u_int8_t dli_family; 1171 * u_int16_t dli_htype; 1172 * u_int32_t dli_pktlen; 1173 * u_int32_t dli_ifindex; 1174 * u_int32_t dli_grifindex; 1175 * u_int32_t dli_zsrc; 1176 * u_int32_t dli_zdst; 1177 * }; 1178 * 1179 * dli_version is 2 for the current version of the pseudo-header. 1180 * 1181 * dli_family is a Solaris address family value, so it's 2 for IPv4 1182 * and 26 for IPv6. 1183 * 1184 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 1185 * packets, and 2 for packets arriving from another zone on the same 1186 * machine. 1187 * 1188 * dli_pktlen is the length of the packet data following the pseudo-header 1189 * (so the captured length minus dli_pktlen is the length of the 1190 * pseudo-header, assuming the entire pseudo-header was captured). 1191 * 1192 * dli_ifindex is the interface index of the interface on which the 1193 * packet arrived. 1194 * 1195 * dli_grifindex is the group interface index number (for IPMP interfaces). 1196 * 1197 * dli_zsrc is the zone identifier for the source of the packet. 1198 * 1199 * dli_zdst is the zone identifier for the destination of the packet. 1200 * 1201 * A zone number of 0 is the global zone; a zone number of 0xffffffff 1202 * means that the packet arrived from another host on the network, not 1203 * from another zone on the same machine. 1204 * 1205 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 1206 * which of those it is. 1207 */ 1208 #define DLT_IPNET 226 1209 1210 /* 1211 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 1212 * by Linux SocketCAN. See Documentation/networking/can.txt in the Linux 1213 * source. 1214 * 1215 * Requested by Felix Obenhuber <[email protected]>. 1216 */ 1217 #define DLT_CAN_SOCKETCAN 227 1218 1219 /* 1220 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 1221 * whether it's v4 or v6. Requested by Darren Reed <[email protected]>. 1222 */ 1223 #define DLT_IPV4 228 1224 #define DLT_IPV6 229 1225 1226 /* 1227 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1228 * nothing), and with no FCS at the end of the frame; requested by 1229 * Jon Smirl <[email protected]>. 1230 */ 1231 #define DLT_IEEE802_15_4_NOFCS 230 1232 1233 /* 1234 * Raw D-Bus: 1235 * 1236 * http://www.freedesktop.org/wiki/Software/dbus 1237 * 1238 * messages: 1239 * 1240 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 1241 * 1242 * starting with the endianness flag, followed by the message type, etc., 1243 * but without the authentication handshake before the message sequence: 1244 * 1245 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1246 * 1247 * Requested by Martin Vidner <[email protected]>. 1248 */ 1249 #define DLT_DBUS 231 1250 1251 /* 1252 * Juniper-private data link type, as per request from 1253 * Hannes Gredler <[email protected]>. 1254 */ 1255 #define DLT_JUNIPER_VS 232 1256 #define DLT_JUNIPER_SRX_E2E 233 1257 #define DLT_JUNIPER_FIBRECHANNEL 234 1258 1259 /* 1260 * DVB-CI (DVB Common Interface for communication between a PC Card 1261 * module and a DVB receiver). See 1262 * 1263 * http://www.kaiser.cx/pcap-dvbci.html 1264 * 1265 * for the specification. 1266 * 1267 * Requested by Martin Kaiser <[email protected]>. 1268 */ 1269 #define DLT_DVB_CI 235 1270 1271 /* 1272 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1273 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1274 * <[email protected]>. 1275 */ 1276 #define DLT_MUX27010 236 1277 1278 /* 1279 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1280 * <[email protected]>. 1281 */ 1282 #define DLT_STANAG_5066_D_PDU 237 1283 1284 /* 1285 * Juniper-private data link type, as per request from 1286 * Hannes Gredler <[email protected]>. 1287 */ 1288 #define DLT_JUNIPER_ATM_CEMIC 238 1289 1290 /* 1291 * NetFilter LOG messages 1292 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1293 * 1294 * Requested by Jakub Zawadzki <[email protected]> 1295 */ 1296 #define DLT_NFLOG 239 1297 1298 /* 1299 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1300 * for Ethernet packets with a 4-byte pseudo-header and always 1301 * with the payload including the FCS, as supplied by their 1302 * netANALYZER hardware and software. 1303 * 1304 * Requested by Holger P. Frommer <[email protected]> 1305 */ 1306 #define DLT_NETANALYZER 240 1307 1308 /* 1309 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1310 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1311 * with the Ethernet header preceded by 7 bytes of preamble and 1312 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1313 * software. 1314 * 1315 * Requested by Holger P. Frommer <[email protected]> 1316 */ 1317 #define DLT_NETANALYZER_TRANSPARENT 241 1318 1319 /* 1320 * IP-over-Infiniband, as specified by RFC 4391. 1321 * 1322 * Requested by Petr Sumbera <[email protected]>. 1323 */ 1324 #define DLT_IPOIB 242 1325 1326 /* 1327 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0). 1328 * 1329 * Requested by Guy Martin <[email protected]>. 1330 */ 1331 #define DLT_MPEG_2_TS 243 1332 1333 /* 1334 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as 1335 * used by their ng40 protocol tester. 1336 * 1337 * Requested by Jens Grimmer <[email protected]>. 1338 */ 1339 #define DLT_NG40 244 1340 1341 /* 1342 * Pseudo-header giving adapter number and flags, followed by an NFC 1343 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU, 1344 * as specified by NFC Forum Logical Link Control Protocol Technical 1345 * Specification LLCP 1.1. 1346 * 1347 * Requested by Mike Wakerly <[email protected]>. 1348 */ 1349 #define DLT_NFC_LLCP 245 1350 1351 /* 1352 * USB packets, beginning with a Darwin (macOS, etc.) USB header. 1353 */ 1354 #define DLT_USB_DARWIN 266 1355 1356 #define DLT_MATCHING_MAX 266 /* highest value in the "matching" range */ 1357 1358 #if !defined(DRIVERKIT) 1359 /* 1360 * The instruction encodings. 1361 */ 1362 /* instruction classes */ 1363 #define BPF_CLASS(code) ((code) & 0x07) 1364 #define BPF_LD 0x00 1365 #define BPF_LDX 0x01 1366 #define BPF_ST 0x02 1367 #define BPF_STX 0x03 1368 #define BPF_ALU 0x04 1369 #define BPF_JMP 0x05 1370 #define BPF_RET 0x06 1371 #define BPF_MISC 0x07 1372 1373 /* ld/ldx fields */ 1374 #define BPF_SIZE(code) ((code) & 0x18) 1375 #define BPF_W 0x00 1376 #define BPF_H 0x08 1377 #define BPF_B 0x10 1378 #define BPF_MODE(code) ((code) & 0xe0) 1379 #define BPF_IMM 0x00 1380 #define BPF_ABS 0x20 1381 #define BPF_IND 0x40 1382 #define BPF_MEM 0x60 1383 #define BPF_LEN 0x80 1384 #define BPF_MSH 0xa0 1385 1386 /* alu/jmp fields */ 1387 #define BPF_OP(code) ((code) & 0xf0) 1388 #define BPF_ADD 0x00 1389 #define BPF_SUB 0x10 1390 #define BPF_MUL 0x20 1391 #define BPF_DIV 0x30 1392 #define BPF_OR 0x40 1393 #define BPF_AND 0x50 1394 #define BPF_LSH 0x60 1395 #define BPF_RSH 0x70 1396 #define BPF_NEG 0x80 1397 #define BPF_JA 0x00 1398 #define BPF_JEQ 0x10 1399 #define BPF_JGT 0x20 1400 #define BPF_JGE 0x30 1401 #define BPF_JSET 0x40 1402 #define BPF_SRC(code) ((code) & 0x08) 1403 #define BPF_K 0x00 1404 #define BPF_X 0x08 1405 1406 /* ret - BPF_K and BPF_X also apply */ 1407 #define BPF_RVAL(code) ((code) & 0x18) 1408 #define BPF_A 0x10 1409 1410 /* misc */ 1411 #define BPF_MISCOP(code) ((code) & 0xf8) 1412 #define BPF_TAX 0x00 1413 #define BPF_TXA 0x80 1414 1415 /* 1416 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 1417 */ 1418 #define BPF_MEMWORDS 16 1419 1420 /* 1421 * The instruction data structure. 1422 */ 1423 struct bpf_insn { 1424 u_short code; 1425 u_char jt; 1426 u_char jf; 1427 bpf_u_int32 k; 1428 }; 1429 1430 /* 1431 * Macros for insn array initializers. 1432 */ 1433 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } 1434 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } 1435 1436 #pragma pack(4) 1437 1438 /* 1439 * Structure to retrieve available DLTs for the interface. 1440 */ 1441 struct bpf_dltlist { 1442 u_int32_t bfl_len; /* number of bfd_list array */ 1443 union { 1444 u_int32_t *bflu_list; /* array of DLTs */ 1445 u_int64_t bflu_pad; 1446 } bfl_u; 1447 }; 1448 #define bfl_list bfl_u.bflu_list 1449 1450 #pragma pack() 1451 1452 #ifdef KERNEL_PRIVATE 1453 #define BPF_MIN_PKT_SIZE 40 1454 #define PORT_DNS 53 1455 #define PORT_BOOTPS 67 1456 #define PORT_BOOTPC 68 1457 #define PORT_ISAKMP 500 1458 #define PORT_ISAKMP_NATT 4500 /* rfc3948 */ 1459 1460 #define BPF_T_MICROTIME 0x0000 /* The default */ 1461 #define BPF_T_NONE 0x0003 1462 1463 /* Forward declerations */ 1464 struct ifnet; 1465 struct mbuf; 1466 1467 #define BPF_PACKET_TYPE_MBUF 0 1468 #if SKYWALK 1469 #define BPF_PACKET_TYPE_PKT 1 1470 #include <skywalk/os_skywalk.h> 1471 #endif /* SKYWALK */ 1472 1473 struct bpf_packet { 1474 int bpfp_type; 1475 void *__sized_by(bpfp_header_length) bpfp_header; /* optional */ 1476 size_t bpfp_header_length; 1477 union { 1478 struct mbuf *bpfpu_mbuf; 1479 void * bpfpu_ptr; 1480 #if SKYWALK 1481 kern_packet_t bpfpu_pkt; 1482 #define bpfp_pkt bpfp_u.bpfpu_pkt 1483 #endif /* SKYWALK */ 1484 } bpfp_u; 1485 #define bpfp_mbuf bpfp_u.bpfpu_mbuf 1486 #define bpfp_ptr bpfp_u.bpfpu_ptr 1487 size_t bpfp_total_length; /* length including optional header */ 1488 }; 1489 1490 extern int bpf_validate(const struct bpf_insn *__counted_by(len), int len); 1491 extern void bpfdetach(struct ifnet *); 1492 extern void bpfilterattach(int); 1493 extern u_int bpf_filter(const struct bpf_insn *__counted_by(pc_len), u_int pc_len, 1494 u_char *__sized_by(sizeof(struct bpf_packet)), u_int wirelen, u_int); 1495 #endif /* KERNEL_PRIVATE */ 1496 1497 #endif /* !defined(DRIVERKIT) */ 1498 1499 #if defined(DRIVERKIT) || defined(KERNEL) 1500 #ifndef BPF_TAP_MODE_T 1501 #define BPF_TAP_MODE_T 1502 /*! 1503 * @enum BPF tap mode 1504 * @abstract Constants defining interface families. 1505 * @constant BPF_MODE_DISABLED Disable bpf. 1506 * @constant BPF_MODE_INPUT Enable input only. 1507 * @constant BPF_MODE_OUTPUT Enable output only. 1508 * @constant BPF_MODE_INPUT_OUTPUT Enable input and output. 1509 */ 1510 1511 enum { 1512 BPF_MODE_DISABLED = 0, 1513 BPF_MODE_INPUT = 1, 1514 BPF_MODE_OUTPUT = 2, 1515 BPF_MODE_INPUT_OUTPUT = 3 1516 }; 1517 /*! 1518 * @typedef bpf_tap_mode 1519 * @abstract Mode for tapping. BPF_MODE_DISABLED/BPF_MODE_INPUT_OUTPUT etc. 1520 */ 1521 typedef uint32_t bpf_tap_mode; 1522 #endif /* !BPF_TAP_MODE_T */ 1523 #endif /* defined(DRIVERKIT) || defined(KERNEL) */ 1524 1525 #ifdef KERNEL 1526 /*! 1527 * @typedef bpf_send_func 1528 * @discussion bpf_send_func is called when a bpf file descriptor is 1529 * used to send a raw packet on the interface. The mbuf and data 1530 * link type are specified. The callback is responsible for 1531 * releasing the mbuf whether or not it returns an error. 1532 * @param interface The interface the packet is being sent on. 1533 * @param data_link_type The data link type the bpf device is attached to. 1534 * @param packet The packet to be sent. 1535 */ 1536 typedef errno_t (*bpf_send_func)(ifnet_t interface, u_int32_t data_link_type, 1537 mbuf_t packet); 1538 1539 /*! 1540 * @typedef bpf_tap_func 1541 * @discussion bpf_tap_func is called when the tap state of the 1542 * interface changes. This happens when a bpf device attaches to an 1543 * interface or detaches from an interface. The tap mode will join 1544 * together (bit or) the modes of all bpf devices using that 1545 * interface for that dlt. If you return an error from this 1546 * function, the bpf device attach attempt that triggered the tap 1547 * will fail. If this function was called bacuse the tap state was 1548 * decreasing (tap in or out is stopping), the error will be 1549 * ignored. 1550 * @param interface The interface being tapped. 1551 * @param data_link_type The data link type being tapped. 1552 * @param direction The direction of the tap. 1553 */ 1554 typedef errno_t (*bpf_tap_func)(ifnet_t interface, u_int32_t data_link_type, 1555 bpf_tap_mode direction); 1556 1557 /*! 1558 * @function bpfattach 1559 * @discussion Registers an interface with BPF. This allows bpf devices 1560 * to attach to your interface to capture packets. Your interface 1561 * will be unregistered automatically when your interface is 1562 * detached. 1563 * @param interface The interface to register with BPF. 1564 * @param data_link_type The data link type of the interface. See the 1565 * DLT_* defines in bpf.h. 1566 * @param header_length The length, in bytes, of the data link header. 1567 */ 1568 extern void bpfattach(ifnet_t interface, u_int data_link_type, 1569 u_int header_length); 1570 1571 /*! 1572 * @function bpf_attach 1573 * @discussion Registers an interface with BPF. This allows bpf devices 1574 * to attach to your interface to capture and transmit packets. 1575 * Your interface will be unregistered automatically when your 1576 * interface is detached. You may register multiple times with 1577 * different data link types. An 802.11 interface would use this to 1578 * allow clients to pick whether they want just an ethernet style 1579 * frame or the 802.11 wireless headers as well. The first dlt you 1580 * register will be considered the default. Any bpf device attaches 1581 * that do not specify a data link type will use the default. 1582 * @param interface The interface to register with BPF. 1583 * @param data_link_type The data link type of the interface. See the 1584 * DLT_* defines in bpf.h. 1585 * @param header_length The length, in bytes, of the data link header. 1586 * @param send See the bpf_send_func described above. 1587 * @param tap See the bpf_tap_func described above. 1588 */ 1589 extern errno_t bpf_attach(ifnet_t interface, u_int32_t data_link_type, 1590 u_int32_t header_length, bpf_send_func send, bpf_tap_func tap); 1591 1592 /*! 1593 * @function bpf_tap_in 1594 * @discussion Call this function when your interface receives a 1595 * packet. This function will check if any bpf devices need a 1596 * a copy of the packet. 1597 * @param interface The interface the packet was received on. 1598 * @param dlt The data link type of the packet. 1599 * @param packet The packet received. 1600 * @param header An optional pointer to a header that will be prepended. 1601 * @param header_len If the header was specified, the length of the header. 1602 */ 1603 extern void bpf_tap_in(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1604 void *__sized_by(header_len) header, size_t header_len); 1605 1606 /*! 1607 * @function bpf_tap_out 1608 * @discussion Call this function when your interface transmits a 1609 * packet. This function will check if any bpf devices need a 1610 * a copy of the packet. 1611 * @param interface The interface the packet was or will be transmitted on. 1612 * @param dlt The data link type of the packet. 1613 * @param packet The packet received. 1614 * @param header An optional pointer to a header that will be prepended. 1615 * @param header_len If the header was specified, the length of the header. 1616 */ 1617 extern void bpf_tap_out(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1618 void *__sized_by(header_len) header, size_t header_len); 1619 1620 #if SKYWALK 1621 /*! 1622 * @function bpf_tap_packet_in 1623 * @discussion Call this function when your interface receives a 1624 * packet. This function will check if any bpf devices need a 1625 * a copy of the packet. 1626 * @param interface The interface the packet was received on. 1627 * @param dlt The data link type of the packet. 1628 * @param packet The packet received. 1629 * @param header An optional pointer to a header that will be prepended. 1630 * @param header_len If the header was specified, the length of the header. 1631 */ 1632 extern void bpf_tap_packet_in(ifnet_t interface, u_int32_t dlt, 1633 kern_packet_t packet, void *__sized_by(header_len) header, size_t header_len); 1634 1635 /*! 1636 * @function bpf_tap_packet_out 1637 * @discussion Call this function when your interface transmits a 1638 * packet. This function will check if any bpf devices need a 1639 * a copy of the packet. 1640 * @param interface The interface the packet was or will be transmitted on. 1641 * @param dlt The data link type of the packet. 1642 * @param packet The packet received. 1643 * @param header An optional pointer to a header that will be prepended. 1644 * @param header_len If the header was specified, the length of the header. 1645 */ 1646 extern void bpf_tap_packet_out(ifnet_t interface, u_int32_t dlt, 1647 kern_packet_t packet, void *__sized_by(header_len) header, size_t header_len); 1648 1649 #endif /* SKYWALK */ 1650 #endif /* KERNEL */ 1651 1652 #endif /* _NET_BPF_H_ */ 1653