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