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 bpf_u_int32 bh_comp_gencnt; /* unsent bytes at socket buffer */ 334 }; 335 336 #define BPF_HDR_EXT_HAS_TRACE_TAG 1 337 #define BPF_HDR_EXT_HAS_COMP_GENCNT 1 338 339 /* 340 * External representation of the bpf descriptor 341 */ 342 struct xbpf_d { 343 uint32_t bd_structsize; /* Size of this structure. */ 344 int32_t bd_dev_minor; 345 int32_t bd_sig; 346 uint32_t bd_slen; 347 uint32_t bd_hlen; 348 uint32_t bd_bufsize; 349 pid_t bd_pid; 350 351 uint8_t bd_promisc; 352 uint8_t bd_immediate; 353 uint8_t bd_hdrcmplt; 354 uint8_t bd_async; 355 356 uint8_t bd_headdrop; 357 uint8_t bd_direction; 358 uint8_t bh_compreq; 359 uint8_t bh_compenabled; 360 361 uint8_t bd_exthdr; 362 uint8_t bd_trunc; 363 uint8_t bd_pkthdrv2; 364 uint8_t bd_batch_write : 1; 365 uint8_t bd_divert_in : 1; 366 uint8_t bd_padding : 6; 367 368 uint64_t bd_rcount; 369 uint64_t bd_dcount; 370 uint64_t bd_fcount; 371 uint64_t bd_wcount; 372 uint64_t bd_wdcount; 373 374 char bd_ifname[IFNAMSIZ]; 375 376 uint64_t bd_comp_count; 377 uint64_t bd_comp_size; 378 379 uint32_t bd_scnt; /* number of packets in store buffer */ 380 uint32_t bd_hcnt; /* number of packets in hold buffer */ 381 382 uint64_t bd_read_count; 383 uint64_t bd_fsize; 384 }; 385 386 #ifndef bd_seesent 387 /* 388 * Code compatibility workaround so that old versions of network_cmds will continue to build 389 * even if netstat -B shows an incorrect value. 390 */ 391 #define bd_seesent bd_direction 392 #endif /* bd_seesent */ 393 394 #define _HAS_STRUCT_XBPF_D_ 2 395 396 struct bpf_comp_hdr { 397 struct BPF_TIMEVAL bh_tstamp; /* time stamp */ 398 bpf_u_int32 bh_caplen; /* length of captured portion */ 399 bpf_u_int32 bh_datalen; /* original length of packet */ 400 u_short bh_hdrlen; /* length of bpf header (this struct 401 * plus alignment padding) */ 402 u_char bh_complen; /* data portion compressed */ 403 u_char bh_padding; /* data portion compressed */ 404 }; 405 406 #define HAS_BPF_HDR_COMP 1 407 #define BPF_HDR_COMP_LEN_MAX 255 408 409 /* 410 * Packet tap directions 411 */ 412 #define BPF_D_NONE 0x0 /* See no packet (for writing only) */ 413 #define BPF_D_IN 0x1 /* See incoming packets */ 414 #define BPF_D_OUT 0x2 /* See outgoing packets */ 415 #define BPF_D_INOUT 0x3 /* See incoming and outgoing packets */ 416 417 #endif /* PRIVATE */ 418 #endif /* !defined(DRIVERKIT) */ 419 420 /* 421 * Data-link level type codes. 422 */ 423 #define DLT_NULL 0 /* no link-layer encapsulation */ 424 #define DLT_EN10MB 1 /* Ethernet (10Mb) */ 425 #define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ 426 #define DLT_AX25 3 /* Amateur Radio AX.25 */ 427 #define DLT_PRONET 4 /* Proteon ProNET Token Ring */ 428 #define DLT_CHAOS 5 /* Chaos */ 429 #define DLT_IEEE802 6 /* IEEE 802 Networks */ 430 #define DLT_ARCNET 7 /* ARCNET */ 431 #define DLT_SLIP 8 /* Serial Line IP */ 432 #define DLT_PPP 9 /* Point-to-point Protocol */ 433 #define DLT_FDDI 10 /* FDDI */ 434 #define DLT_ATM_RFC1483 11 /* LLC/SNAP encapsulated atm */ 435 #define DLT_RAW 12 /* raw IP */ 436 437 /* 438 * These are values from BSD/OS's "bpf.h". 439 * These are not the same as the values from the traditional libpcap 440 * "bpf.h"; however, these values shouldn't be generated by any 441 * OS other than BSD/OS, so the correct values to use here are the 442 * BSD/OS values. 443 * 444 * Platforms that have already assigned these values to other 445 * DLT_ codes, however, should give these codes the values 446 * from that platform, so that programs that use these codes will 447 * continue to compile - even though they won't correctly read 448 * files of these types. 449 */ 450 #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ 451 #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ 452 453 /* 454 * 17 was used for DLT_PFLOG in OpenBSD; it no longer is. 455 * 456 * It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG 457 * as 117 so that pflog captures would use a link-layer header type 458 * value that didn't collide with any other values. On all 459 * platforms other than OpenBSD, we defined DLT_PFLOG as 117, 460 * and we mapped between LINKTYPE_PFLOG and DLT_PFLOG. 461 * 462 * OpenBSD eventually switched to using 117 for DLT_PFLOG as well. 463 * 464 * Don't use 17 for anything else. 465 */ 466 467 /* 468 * 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and 469 * Mac OS X; don't use it for anything else. (FreeBSD uses 121, 470 * which collides with DLT_HHDLC, even though it doesn't use 18 471 * for anything and doesn't appear to have ever used it for anything.) 472 * 473 * We define it as 18 on those platforms; it is, unfortunately, used 474 * for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC 475 * in general. As the packet format for it, like that for 476 * DLT_PFLOG, is not only OS-dependent but OS-version-dependent, 477 * we don't support printing it in tcpdump except on OSes that 478 * have the relevant header files, so it's not that useful on 479 * other platforms. 480 */ 481 #define DLT_PFSYNC 18 /* Packet filter state syncing */ 482 483 #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ 484 485 /* 486 * These values are defined by NetBSD; other platforms should refrain from 487 * using them for other purposes, so that NetBSD savefiles with link 488 * types of 50 or 51 can be read as this type on all platforms. 489 */ 490 #define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ 491 #define DLT_PPP_ETHER 51 /* PPP over Ethernet */ 492 493 /* 494 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses 495 * a link-layer type of 99 for the tcpdump it supplies. The link-layer 496 * header has 6 bytes of unknown data, something that appears to be an 497 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture 498 * I've seen. 499 */ 500 #define DLT_SYMANTEC_FIREWALL 99 501 502 /* 503 * Values between 100 and 103 are used in capture file headers as 504 * link-layer header type LINKTYPE_ values corresponding to DLT_ types 505 * that differ between platforms; don't use those values for new DLT_ 506 * new types. 507 */ 508 509 /* 510 * Values starting with 104 are used for newly-assigned link-layer 511 * header type values; for those link-layer header types, the DLT_ 512 * value returned by pcap_datalink() and passed to pcap_open_dead(), 513 * and the LINKTYPE_ value that appears in capture files, are the 514 * same. 515 * 516 * DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is 517 * the highest such value. 518 */ 519 #define DLT_MATCHING_MIN 104 520 521 /* 522 * This value was defined by libpcap 0.5; platforms that have defined 523 * it with a different value should define it here with that value - 524 * a link type of 104 in a save file will be mapped to DLT_C_HDLC, 525 * whatever value that happens to be, so programs will correctly 526 * handle files with that link type regardless of the value of 527 * DLT_C_HDLC. 528 * 529 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source 530 * compatibility with programs written for BSD/OS. 531 * 532 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, 533 * for source compatibility with programs written for libpcap 0.5. 534 */ 535 #define DLT_C_HDLC 104 /* Cisco HDLC */ 536 #define DLT_CHDLC DLT_C_HDLC 537 538 #define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ 539 540 /* 541 * Values between 106 and 107 are used in capture file headers as 542 * link-layer types corresponding to DLT_ types that might differ 543 * between platforms; don't use those values for new DLT_ new types. 544 */ 545 546 /* 547 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides 548 * with other values. 549 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header 550 * (DLCI, etc.). 551 */ 552 #define DLT_FRELAY 107 553 554 /* 555 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except 556 * that the AF_ type in the link-layer header is in network byte order. 557 * 558 * OpenBSD defines it as 12, but that collides with DLT_RAW, so we 559 * define it as 108 here. If OpenBSD picks up this file, it should 560 * define DLT_LOOP as 12 in its version, as per the comment above - 561 * and should not use 108 for any purpose. 562 */ 563 #define DLT_LOOP 108 564 565 /* 566 * Values between 109 and 112 are used in capture file headers as 567 * link-layer types corresponding to DLT_ types that might differ 568 * between platforms; don't use those values for new DLT_ new types. 569 */ 570 571 /* 572 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's 573 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other 574 * than OpenBSD. 575 */ 576 #define DLT_ENC 109 577 578 /* 579 * This is for Linux cooked sockets. 580 */ 581 #define DLT_LINUX_SLL 113 582 583 /* 584 * Apple LocalTalk hardware. 585 */ 586 #define DLT_LTALK 114 587 588 /* 589 * Acorn Econet. 590 */ 591 #define DLT_ECONET 115 592 593 /* 594 * Reserved for use with OpenBSD ipfilter. 595 */ 596 #define DLT_IPFILTER 116 597 598 /* 599 * For use in capture-file headers as a link-layer type corresponding 600 * to OpenBSD PF (Packet Filter) log. 601 */ 602 #define DLT_PFLOG 117 603 604 /* 605 * Registered for Cisco-internal use. 606 */ 607 #define DLT_CISCO_IOS 118 608 609 /* 610 * Reserved for 802.11 cards using the Prism II chips, with a link-layer 611 * header including Prism monitor mode information plus an 802.11 612 * header. 613 */ 614 #define DLT_PRISM_HEADER 119 615 616 /* 617 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header 618 * (see Doug Ambrisko's FreeBSD patches). 619 */ 620 #define DLT_AIRONET_HEADER 120 621 622 /* 623 * Reserved for Siemens HiPath HDLC. XXX 624 */ 625 #define DLT_HHDLC 121 626 627 /* 628 * Reserved for RFC 2625 IP-over-Fibre Channel. 629 */ 630 #define DLT_IP_OVER_FC 122 631 632 /* 633 * Reserved for Full Frontal ATM on Solaris. 634 */ 635 #define DLT_SUNATM 123 636 637 /* 638 * Reserved as per request from Kent Dahlgren <[email protected]> 639 * for private use. 640 */ 641 #define DLT_RIO 124 /* RapidIO */ 642 #define DLT_PCI_EXP 125 /* PCI Express */ 643 #define DLT_AURORA 126 /* Xilinx Aurora link layer */ 644 645 /* 646 * BSD header for 802.11 plus a number of bits of link-layer information 647 * including radio information. 648 */ 649 #ifndef DLT_IEEE802_11_RADIO 650 #define DLT_IEEE802_11_RADIO 127 651 #endif 652 653 /* 654 * Reserved for TZSP encapsulation. 655 */ 656 #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ 657 658 /* 659 * Reserved for Linux ARCNET. 660 */ 661 #define DLT_ARCNET_LINUX 129 662 663 /* 664 * Juniper-private data link types. 665 */ 666 #define DLT_JUNIPER_MLPPP 130 667 #define DLT_JUNIPER_MLFR 131 668 #define DLT_JUNIPER_ES 132 669 #define DLT_JUNIPER_GGSN 133 670 #define DLT_JUNIPER_MFR 134 671 #define DLT_JUNIPER_ATM2 135 672 #define DLT_JUNIPER_SERVICES 136 673 #define DLT_JUNIPER_ATM1 137 674 675 /* 676 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund 677 * <[email protected]>. The header that's presented is an Ethernet-like 678 * header: 679 * 680 * #define FIREWIRE_EUI64_LEN 8 681 * struct firewire_header { 682 * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 683 * u_char firewire_shost[FIREWIRE_EUI64_LEN]; 684 * u_short firewire_type; 685 * }; 686 * 687 * with "firewire_type" being an Ethernet type value, rather than, 688 * for example, raw GASP frames being handed up. 689 */ 690 #define DLT_APPLE_IP_OVER_IEEE1394 138 691 692 /* 693 * Various SS7 encapsulations, as per a request from Jeff Morriss 694 * <jeff.morriss[AT]ulticom.com> and subsequent discussions. 695 */ 696 #define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ 697 #define DLT_MTP2 140 /* MTP2, without pseudo-header */ 698 #define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ 699 #define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ 700 701 /* 702 * Reserved for DOCSIS. 703 */ 704 #define DLT_DOCSIS 143 705 706 /* 707 * Reserved for Linux IrDA. 708 */ 709 #define DLT_LINUX_IRDA 144 710 711 /* 712 * Reserved for IBM SP switch and IBM Next Federation switch. 713 */ 714 #define DLT_IBM_SP 145 715 #define DLT_IBM_SN 146 716 717 /* 718 * Reserved for private use. If you have some link-layer header type 719 * that you want to use within your organization, with the capture files 720 * using that link-layer header type not ever be sent outside your 721 * organization, you can use these values. 722 * 723 * No libpcap release will use these for any purpose, nor will any 724 * tcpdump release use them, either. 725 * 726 * Do *NOT* use these in capture files that you expect anybody not using 727 * your private versions of capture-file-reading tools to read; in 728 * particular, do *NOT* use them in products, otherwise you may find that 729 * people won't be able to use tcpdump, or snort, or Ethereal, or... to 730 * read capture files from your firewall/intrusion detection/traffic 731 * monitoring/etc. appliance, or whatever product uses that DLT_ value, 732 * and you may also find that the developers of those applications will 733 * not accept patches to let them read those files. 734 * 735 * Also, do not use them if somebody might send you a capture using them 736 * for *their* private type and tools using them for *your* private type 737 * would have to read them. 738 * 739 * Instead, ask "[email protected]" for a new DLT_ value, 740 * as per the comment above, and use the type you're given. 741 */ 742 #define DLT_USER0 147 743 #define DLT_USER1 148 744 #define DLT_USER2 149 745 #define DLT_USER3 150 746 #define DLT_USER4 151 747 #define DLT_USER5 152 748 #define DLT_USER6 153 749 #define DLT_USER7 154 750 #define DLT_USER8 155 751 #define DLT_USER9 156 752 #define DLT_USER10 157 753 #define DLT_USER11 158 754 #define DLT_USER12 159 755 #define DLT_USER13 160 756 #define DLT_USER14 161 757 #define DLT_USER15 162 758 759 #ifdef PRIVATE 760 /* 761 * For Apple private usage 762 */ 763 #define DLT_USER0_APPLE_INTERNAL DLT_USER0 /* rdar://12019509 */ 764 #define DLT_USER1_APPLE_INTERNAL DLT_USER1 /* rdar://12019509 */ 765 #define DLT_PKTAP DLT_USER2 /* rdar://11779467 */ 766 #define DLT_USER3_APPLE_INTERNAL DLT_USER3 /* rdar://19614531 */ 767 #define DLT_USER4_APPLE_INTERNAL DLT_USER4 /* rdar://19614531 */ 768 #endif /* PRIVATE */ 769 770 /* 771 * For future use with 802.11 captures - defined by AbsoluteValue 772 * Systems to store a number of bits of link-layer information 773 * including radio information: 774 * 775 * http://www.shaftnet.org/~pizza/software/capturefrm.txt 776 * 777 * but it might be used by some non-AVS drivers now or in the 778 * future. 779 */ 780 #define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ 781 782 /* 783 * Juniper-private data link type, as per request from 784 * Hannes Gredler <[email protected]>. The DLT_s are used 785 * for passing on chassis-internal metainformation such as 786 * QOS profiles, etc.. 787 */ 788 #define DLT_JUNIPER_MONITOR 164 789 790 /* 791 * Reserved for BACnet MS/TP. 792 */ 793 #define DLT_BACNET_MS_TP 165 794 795 /* 796 * Another PPP variant as per request from Karsten Keil <[email protected]>. 797 * 798 * This is used in some OSes to allow a kernel socket filter to distinguish 799 * between incoming and outgoing packets, on a socket intended to 800 * supply pppd with outgoing packets so it can do dial-on-demand and 801 * hangup-on-lack-of-demand; incoming packets are filtered out so they 802 * don't cause pppd to hold the connection up (you don't want random 803 * input packets such as port scans, packets from old lost connections, 804 * etc. to force the connection to stay up). 805 * 806 * The first byte of the PPP header (0xff03) is modified to accomodate 807 * the direction - 0x00 = IN, 0x01 = OUT. 808 */ 809 #define DLT_PPP_PPPD 166 810 811 /* 812 * Names for backwards compatibility with older versions of some PPP 813 * software; new software should use DLT_PPP_PPPD. 814 */ 815 #define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD 816 #define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD 817 818 /* 819 * Juniper-private data link type, as per request from 820 * Hannes Gredler <[email protected]>. The DLT_s are used 821 * for passing on chassis-internal metainformation such as 822 * QOS profiles, cookies, etc.. 823 */ 824 #define DLT_JUNIPER_PPPOE 167 825 #define DLT_JUNIPER_PPPOE_ATM 168 826 827 #define DLT_GPRS_LLC 169 /* GPRS LLC */ 828 #define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ 829 #define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ 830 831 /* 832 * Requested by Oolan Zimmer <[email protected]> for use in Gcom's T1/E1 line 833 * monitoring equipment. 834 */ 835 #define DLT_GCOM_T1E1 172 836 #define DLT_GCOM_SERIAL 173 837 838 /* 839 * Juniper-private data link type, as per request from 840 * Hannes Gredler <[email protected]>. The DLT_ is used 841 * for internal communication to Physical Interface Cards (PIC) 842 */ 843 #define DLT_JUNIPER_PIC_PEER 174 844 845 /* 846 * Link types requested by Gregor Maier <[email protected]> of Endace 847 * Measurement Systems. They add an ERF header (see 848 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of 849 * the link-layer header. 850 */ 851 #define DLT_ERF_ETH 175 /* Ethernet */ 852 #define DLT_ERF_POS 176 /* Packet-over-SONET */ 853 854 /* 855 * Requested by Daniele Orlandi <[email protected]> for raw LAPD 856 * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header 857 * includes additional information before the LAPD header, so it's 858 * not necessarily a generic LAPD header. 859 */ 860 #define DLT_LINUX_LAPD 177 861 862 /* 863 * Juniper-private data link type, as per request from 864 * Hannes Gredler <[email protected]>. 865 * The DLT_ are used for prepending meta-information 866 * like interface index, interface name 867 * before standard Ethernet, PPP, Frelay & C-HDLC Frames 868 */ 869 #define DLT_JUNIPER_ETHER 178 870 #define DLT_JUNIPER_PPP 179 871 #define DLT_JUNIPER_FRELAY 180 872 #define DLT_JUNIPER_CHDLC 181 873 874 /* 875 * Multi Link Frame Relay (FRF.16) 876 */ 877 #define DLT_MFR 182 878 879 /* 880 * Juniper-private data link type, as per request from 881 * Hannes Gredler <[email protected]>. 882 * The DLT_ is used for internal communication with a 883 * voice Adapter Card (PIC) 884 */ 885 #define DLT_JUNIPER_VP 183 886 887 /* 888 * Arinc 429 frames. 889 * DLT_ requested by Gianluca Varenni <[email protected]>. 890 * Every frame contains a 32bit A429 label. 891 * More documentation on Arinc 429 can be found at 892 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf 893 */ 894 #define DLT_A429 184 895 896 /* 897 * Arinc 653 Interpartition Communication messages. 898 * DLT_ requested by Gianluca Varenni <[email protected]>. 899 * Please refer to the A653-1 standard for more information. 900 */ 901 #define DLT_A653_ICM 185 902 903 /* 904 * USB packets, beginning with a USB setup header; requested by 905 * Paolo Abeni <[email protected]>. 906 */ 907 #define DLT_USB 186 908 909 /* 910 * Bluetooth HCI UART transport layer (part H:4); requested by 911 * Paolo Abeni. 912 */ 913 #define DLT_BLUETOOTH_HCI_H4 187 914 915 /* 916 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz 917 * <[email protected]>. 918 */ 919 #define DLT_IEEE802_16_MAC_CPS 188 920 921 /* 922 * USB packets, beginning with a Linux USB header; requested by 923 * Paolo Abeni <[email protected]>. 924 */ 925 #define DLT_USB_LINUX 189 926 927 /* 928 * Controller Area Network (CAN) v. 2.0B packets. 929 * DLT_ requested by Gianluca Varenni <[email protected]>. 930 * Used to dump CAN packets coming from a CAN Vector board. 931 * More documentation on the CAN v2.0B frames can be found at 932 * http://www.can-cia.org/downloads/?269 933 */ 934 #define DLT_CAN20B 190 935 936 /* 937 * IEEE 802.15.4, with address fields padded, as is done by Linux 938 * drivers; requested by Juergen Schimmer. 939 */ 940 #define DLT_IEEE802_15_4_LINUX 191 941 942 /* 943 * Per Packet Information encapsulated packets. 944 * DLT_ requested by Gianluca Varenni <[email protected]>. 945 */ 946 #define DLT_PPI 192 947 948 /* 949 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; 950 * requested by Charles Clancy. 951 */ 952 #define DLT_IEEE802_16_MAC_CPS_RADIO 193 953 954 /* 955 * Juniper-private data link type, as per request from 956 * Hannes Gredler <[email protected]>. 957 * The DLT_ is used for internal communication with a 958 * integrated service module (ISM). 959 */ 960 #define DLT_JUNIPER_ISM 194 961 962 /* 963 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 964 * nothing); requested by Mikko Saarnivala <[email protected]>. 965 */ 966 #define DLT_IEEE802_15_4 195 967 968 /* 969 * Various link-layer types, with a pseudo-header, for SITA 970 * (http://www.sita.aero/); requested by Fulko Hew ([email protected]). 971 */ 972 #define DLT_SITA 196 973 974 /* 975 * Various link-layer types, with a pseudo-header, for Endace DAG cards; 976 * encapsulates Endace ERF records. Requested by Stephen Donnelly 977 * <[email protected]>. 978 */ 979 #define DLT_ERF 197 980 981 /* 982 * Special header prepended to Ethernet packets when capturing from a 983 * u10 Networks board. Requested by Phil Mulholland 984 * <[email protected]>. 985 */ 986 #define DLT_RAIF1 198 987 988 /* 989 * IPMB packet for IPMI, beginning with the I2C slave address, followed 990 * by the netFn and LUN, etc.. Requested by Chanthy Toeung 991 * <[email protected]>. 992 */ 993 #define DLT_IPMB 199 994 995 /* 996 * Juniper-private data link type, as per request from 997 * Hannes Gredler <[email protected]>. 998 * The DLT_ is used for capturing data on a secure tunnel interface. 999 */ 1000 #define DLT_JUNIPER_ST 200 1001 1002 /* 1003 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header 1004 * that includes direction information; requested by Paolo Abeni. 1005 */ 1006 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 1007 1008 /* 1009 * AX.25 packet with a 1-byte KISS header; see 1010 * 1011 * http://www.ax25.net/kiss.htm 1012 * 1013 * as per Richard Stearn <[email protected]>. 1014 */ 1015 #define DLT_AX25_KISS 202 1016 1017 /* 1018 * LAPD packets from an ISDN channel, starting with the address field, 1019 * with no pseudo-header. 1020 * Requested by Varuna De Silva <[email protected]>. 1021 */ 1022 #define DLT_LAPD 203 1023 1024 /* 1025 * Variants of various link-layer headers, with a one-byte direction 1026 * pseudo-header prepended - zero means "received by this host", 1027 * non-zero (any non-zero value) means "sent by this host" - as per 1028 * Will Barker <[email protected]>. 1029 */ 1030 #define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */ 1031 #define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */ 1032 #define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */ 1033 #define DLT_LAPB_WITH_DIR 207 /* LAPB */ 1034 1035 /* 1036 * 208 is reserved for an as-yet-unspecified proprietary link-layer 1037 * type, as requested by Will Barker. 1038 */ 1039 1040 /* 1041 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman 1042 * <[email protected]>. 1043 */ 1044 #define DLT_IPMB_LINUX 209 1045 1046 /* 1047 * FlexRay automotive bus - http://www.flexray.com/ - as requested 1048 * by Hannes Kaelber <[email protected]>. 1049 */ 1050 #define DLT_FLEXRAY 210 1051 1052 /* 1053 * Media Oriented Systems Transport (MOST) bus for multimedia 1054 * transport - http://www.mostcooperation.com/ - as requested 1055 * by Hannes Kaelber <[email protected]>. 1056 */ 1057 #define DLT_MOST 211 1058 1059 /* 1060 * Local Interconnect Network (LIN) bus for vehicle networks - 1061 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber 1062 * <[email protected]>. 1063 */ 1064 #define DLT_LIN 212 1065 1066 /* 1067 * X2E-private data link type used for serial line capture, 1068 * as requested by Hannes Kaelber <[email protected]>. 1069 */ 1070 #define DLT_X2E_SERIAL 213 1071 1072 /* 1073 * X2E-private data link type used for the Xoraya data logger 1074 * family, as requested by Hannes Kaelber <[email protected]>. 1075 */ 1076 #define DLT_X2E_XORAYA 214 1077 1078 /* 1079 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1080 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets 1081 * of 0 as preamble, one octet of SFD, one octet of frame length+ 1082 * reserved bit, and then the MAC-layer data, starting with the 1083 * frame control field). 1084 * 1085 * Requested by Max Filippov <[email protected]>. 1086 */ 1087 #define DLT_IEEE802_15_4_NONASK_PHY 215 1088 1089 /* 1090 * David Gibson <[email protected]> requested this for 1091 * captures from the Linux kernel /dev/input/eventN devices. This 1092 * is used to communicate keystrokes and mouse movements from the 1093 * Linux kernel to display systems, such as Xorg. 1094 */ 1095 #define DLT_LINUX_EVDEV 216 1096 1097 /* 1098 * GSM Um and Abis interfaces, preceded by a "gsmtap" header. 1099 * 1100 * Requested by Harald Welte <[email protected]>. 1101 */ 1102 #define DLT_GSMTAP_UM 217 1103 #define DLT_GSMTAP_ABIS 218 1104 1105 /* 1106 * MPLS, with an MPLS label as the link-layer header. 1107 * Requested by Michele Marchetto <[email protected]> on behalf 1108 * of OpenBSD. 1109 */ 1110 #define DLT_MPLS 219 1111 1112 /* 1113 * USB packets, beginning with a Linux USB header, with the USB header 1114 * padded to 64 bytes; required for memory-mapped access. 1115 */ 1116 #define DLT_USB_LINUX_MMAPPED 220 1117 1118 /* 1119 * DECT packets, with a pseudo-header; requested by 1120 * Matthias Wenzel <[email protected]>. 1121 */ 1122 #define DLT_DECT 221 1123 1124 /* 1125 * From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <[email protected]> 1126 * Date: Mon, 11 May 2009 11:18:30 -0500 1127 * 1128 * DLT_AOS. We need it for AOS Space Data Link Protocol. 1129 * I have already written dissectors for but need an OK from 1130 * legal before I can submit a patch. 1131 * 1132 */ 1133 #define DLT_AOS 222 1134 1135 /* 1136 * Wireless HART (Highway Addressable Remote Transducer) 1137 * From the HART Communication Foundation 1138 * IES/PAS 62591 1139 * 1140 * Requested by Sam Roberts <[email protected]>. 1141 */ 1142 #define DLT_WIHART 223 1143 1144 /* 1145 * Fibre Channel FC-2 frames, beginning with a Frame_Header. 1146 * Requested by Kahou Lei <[email protected]>. 1147 */ 1148 #define DLT_FC_2 224 1149 1150 /* 1151 * Fibre Channel FC-2 frames, beginning with an encoding of the 1152 * SOF, and ending with an encoding of the EOF. 1153 * 1154 * The encodings represent the frame delimiters as 4-byte sequences 1155 * representing the corresponding ordered sets, with K28.5 1156 * represented as 0xBC, and the D symbols as the corresponding 1157 * byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2, 1158 * is represented as 0xBC 0xB5 0x55 0x55. 1159 * 1160 * Requested by Kahou Lei <[email protected]>. 1161 */ 1162 #define DLT_FC_2_WITH_FRAME_DELIMS 225 1163 1164 /* 1165 * Solaris ipnet pseudo-header; requested by Darren Reed <[email protected]>. 1166 * 1167 * The pseudo-header starts with a one-byte version number; for version 2, 1168 * the pseudo-header is: 1169 * 1170 * struct dl_ipnetinfo { 1171 * u_int8_t dli_version; 1172 * u_int8_t dli_family; 1173 * u_int16_t dli_htype; 1174 * u_int32_t dli_pktlen; 1175 * u_int32_t dli_ifindex; 1176 * u_int32_t dli_grifindex; 1177 * u_int32_t dli_zsrc; 1178 * u_int32_t dli_zdst; 1179 * }; 1180 * 1181 * dli_version is 2 for the current version of the pseudo-header. 1182 * 1183 * dli_family is a Solaris address family value, so it's 2 for IPv4 1184 * and 26 for IPv6. 1185 * 1186 * dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing 1187 * packets, and 2 for packets arriving from another zone on the same 1188 * machine. 1189 * 1190 * dli_pktlen is the length of the packet data following the pseudo-header 1191 * (so the captured length minus dli_pktlen is the length of the 1192 * pseudo-header, assuming the entire pseudo-header was captured). 1193 * 1194 * dli_ifindex is the interface index of the interface on which the 1195 * packet arrived. 1196 * 1197 * dli_grifindex is the group interface index number (for IPMP interfaces). 1198 * 1199 * dli_zsrc is the zone identifier for the source of the packet. 1200 * 1201 * dli_zdst is the zone identifier for the destination of the packet. 1202 * 1203 * A zone number of 0 is the global zone; a zone number of 0xffffffff 1204 * means that the packet arrived from another host on the network, not 1205 * from another zone on the same machine. 1206 * 1207 * An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates 1208 * which of those it is. 1209 */ 1210 #define DLT_IPNET 226 1211 1212 /* 1213 * CAN (Controller Area Network) frames, with a pseudo-header as supplied 1214 * by Linux SocketCAN. See Documentation/networking/can.txt in the Linux 1215 * source. 1216 * 1217 * Requested by Felix Obenhuber <[email protected]>. 1218 */ 1219 #define DLT_CAN_SOCKETCAN 227 1220 1221 /* 1222 * Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies 1223 * whether it's v4 or v6. Requested by Darren Reed <[email protected]>. 1224 */ 1225 #define DLT_IPV4 228 1226 #define DLT_IPV6 229 1227 1228 /* 1229 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no 1230 * nothing), and with no FCS at the end of the frame; requested by 1231 * Jon Smirl <[email protected]>. 1232 */ 1233 #define DLT_IEEE802_15_4_NOFCS 230 1234 1235 /* 1236 * Raw D-Bus: 1237 * 1238 * http://www.freedesktop.org/wiki/Software/dbus 1239 * 1240 * messages: 1241 * 1242 * http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages 1243 * 1244 * starting with the endianness flag, followed by the message type, etc., 1245 * but without the authentication handshake before the message sequence: 1246 * 1247 * http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol 1248 * 1249 * Requested by Martin Vidner <[email protected]>. 1250 */ 1251 #define DLT_DBUS 231 1252 1253 /* 1254 * Juniper-private data link type, as per request from 1255 * Hannes Gredler <[email protected]>. 1256 */ 1257 #define DLT_JUNIPER_VS 232 1258 #define DLT_JUNIPER_SRX_E2E 233 1259 #define DLT_JUNIPER_FIBRECHANNEL 234 1260 1261 /* 1262 * DVB-CI (DVB Common Interface for communication between a PC Card 1263 * module and a DVB receiver). See 1264 * 1265 * http://www.kaiser.cx/pcap-dvbci.html 1266 * 1267 * for the specification. 1268 * 1269 * Requested by Martin Kaiser <[email protected]>. 1270 */ 1271 #define DLT_DVB_CI 235 1272 1273 /* 1274 * Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but 1275 * *not* the same as, 27.010). Requested by Hans-Christoph Schemmel 1276 * <[email protected]>. 1277 */ 1278 #define DLT_MUX27010 236 1279 1280 /* 1281 * STANAG 5066 D_PDUs. Requested by M. Baris Demiray 1282 * <[email protected]>. 1283 */ 1284 #define DLT_STANAG_5066_D_PDU 237 1285 1286 /* 1287 * Juniper-private data link type, as per request from 1288 * Hannes Gredler <[email protected]>. 1289 */ 1290 #define DLT_JUNIPER_ATM_CEMIC 238 1291 1292 /* 1293 * NetFilter LOG messages 1294 * (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets) 1295 * 1296 * Requested by Jakub Zawadzki <[email protected]> 1297 */ 1298 #define DLT_NFLOG 239 1299 1300 /* 1301 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1302 * for Ethernet packets with a 4-byte pseudo-header and always 1303 * with the payload including the FCS, as supplied by their 1304 * netANALYZER hardware and software. 1305 * 1306 * Requested by Holger P. Frommer <[email protected]> 1307 */ 1308 #define DLT_NETANALYZER 240 1309 1310 /* 1311 * Hilscher Gesellschaft fuer Systemautomation mbH link-layer type 1312 * for Ethernet packets with a 4-byte pseudo-header and FCS and 1313 * with the Ethernet header preceded by 7 bytes of preamble and 1314 * 1 byte of SFD, as supplied by their netANALYZER hardware and 1315 * software. 1316 * 1317 * Requested by Holger P. Frommer <[email protected]> 1318 */ 1319 #define DLT_NETANALYZER_TRANSPARENT 241 1320 1321 /* 1322 * IP-over-Infiniband, as specified by RFC 4391. 1323 * 1324 * Requested by Petr Sumbera <[email protected]>. 1325 */ 1326 #define DLT_IPOIB 242 1327 1328 /* 1329 * MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0). 1330 * 1331 * Requested by Guy Martin <[email protected]>. 1332 */ 1333 #define DLT_MPEG_2_TS 243 1334 1335 /* 1336 * ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as 1337 * used by their ng40 protocol tester. 1338 * 1339 * Requested by Jens Grimmer <[email protected]>. 1340 */ 1341 #define DLT_NG40 244 1342 1343 /* 1344 * Pseudo-header giving adapter number and flags, followed by an NFC 1345 * (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU, 1346 * as specified by NFC Forum Logical Link Control Protocol Technical 1347 * Specification LLCP 1.1. 1348 * 1349 * Requested by Mike Wakerly <[email protected]>. 1350 */ 1351 #define DLT_NFC_LLCP 245 1352 1353 /* 1354 * USB packets, beginning with a Darwin (macOS, etc.) USB header. 1355 */ 1356 #define DLT_USB_DARWIN 266 1357 1358 #define DLT_MATCHING_MAX 266 /* highest value in the "matching" range */ 1359 1360 #if !defined(DRIVERKIT) 1361 /* 1362 * The instruction encodings. 1363 */ 1364 /* instruction classes */ 1365 #define BPF_CLASS(code) ((code) & 0x07) 1366 #define BPF_LD 0x00 1367 #define BPF_LDX 0x01 1368 #define BPF_ST 0x02 1369 #define BPF_STX 0x03 1370 #define BPF_ALU 0x04 1371 #define BPF_JMP 0x05 1372 #define BPF_RET 0x06 1373 #define BPF_MISC 0x07 1374 1375 /* ld/ldx fields */ 1376 #define BPF_SIZE(code) ((code) & 0x18) 1377 #define BPF_W 0x00 1378 #define BPF_H 0x08 1379 #define BPF_B 0x10 1380 #define BPF_MODE(code) ((code) & 0xe0) 1381 #define BPF_IMM 0x00 1382 #define BPF_ABS 0x20 1383 #define BPF_IND 0x40 1384 #define BPF_MEM 0x60 1385 #define BPF_LEN 0x80 1386 #define BPF_MSH 0xa0 1387 1388 /* alu/jmp fields */ 1389 #define BPF_OP(code) ((code) & 0xf0) 1390 #define BPF_ADD 0x00 1391 #define BPF_SUB 0x10 1392 #define BPF_MUL 0x20 1393 #define BPF_DIV 0x30 1394 #define BPF_OR 0x40 1395 #define BPF_AND 0x50 1396 #define BPF_LSH 0x60 1397 #define BPF_RSH 0x70 1398 #define BPF_NEG 0x80 1399 #define BPF_JA 0x00 1400 #define BPF_JEQ 0x10 1401 #define BPF_JGT 0x20 1402 #define BPF_JGE 0x30 1403 #define BPF_JSET 0x40 1404 #define BPF_SRC(code) ((code) & 0x08) 1405 #define BPF_K 0x00 1406 #define BPF_X 0x08 1407 1408 /* ret - BPF_K and BPF_X also apply */ 1409 #define BPF_RVAL(code) ((code) & 0x18) 1410 #define BPF_A 0x10 1411 1412 /* misc */ 1413 #define BPF_MISCOP(code) ((code) & 0xf8) 1414 #define BPF_TAX 0x00 1415 #define BPF_TXA 0x80 1416 1417 /* 1418 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). 1419 */ 1420 #define BPF_MEMWORDS 16 1421 1422 /* 1423 * The instruction data structure. 1424 */ 1425 struct bpf_insn { 1426 u_short code; 1427 u_char jt; 1428 u_char jf; 1429 bpf_u_int32 k; 1430 }; 1431 1432 /* 1433 * Macros for insn array initializers. 1434 */ 1435 #define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } 1436 #define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } 1437 1438 #pragma pack(4) 1439 1440 /* 1441 * Structure to retrieve available DLTs for the interface. 1442 */ 1443 struct bpf_dltlist { 1444 u_int32_t bfl_len; /* number of bfd_list array */ 1445 union { 1446 u_int32_t *bflu_list; /* array of DLTs */ 1447 u_int64_t bflu_pad; 1448 } bfl_u; 1449 }; 1450 #define bfl_list bfl_u.bflu_list 1451 1452 #pragma pack() 1453 1454 #ifdef KERNEL_PRIVATE 1455 #define BPF_MIN_PKT_SIZE 40 1456 #define PORT_DNS 53 1457 #define PORT_BOOTPS 67 1458 #define PORT_BOOTPC 68 1459 #define PORT_ISAKMP 500 1460 #define PORT_ISAKMP_NATT 4500 /* rfc3948 */ 1461 1462 #define BPF_T_MICROTIME 0x0000 /* The default */ 1463 #define BPF_T_NONE 0x0003 1464 1465 /* Forward declerations */ 1466 struct ifnet; 1467 struct mbuf; 1468 1469 #define BPF_PACKET_TYPE_MBUF 0 1470 #if SKYWALK 1471 #define BPF_PACKET_TYPE_PKT 1 1472 #include <skywalk/os_skywalk.h> 1473 #endif /* SKYWALK */ 1474 1475 struct bpf_packet { 1476 int bpfp_type; 1477 void *__sized_by(bpfp_header_length) bpfp_header; /* optional */ 1478 size_t bpfp_header_length; 1479 union { 1480 struct mbuf *bpfpu_mbuf; 1481 void * bpfpu_ptr; 1482 #if SKYWALK 1483 kern_packet_t bpfpu_pkt; 1484 #define bpfp_pkt bpfp_u.bpfpu_pkt 1485 #endif /* SKYWALK */ 1486 } bpfp_u; 1487 #define bpfp_mbuf bpfp_u.bpfpu_mbuf 1488 #define bpfp_ptr bpfp_u.bpfpu_ptr 1489 size_t bpfp_total_length; /* length including optional header */ 1490 }; 1491 1492 extern int bpf_validate(const struct bpf_insn *__counted_by(len), int len); 1493 extern void bpfdetach(struct ifnet *); 1494 extern void bpfilterattach(int); 1495 extern u_int bpf_filter(const struct bpf_insn *__counted_by(pc_len), u_int pc_len, 1496 u_char *__sized_by(sizeof(struct bpf_packet)), u_int wirelen, u_int); 1497 #endif /* KERNEL_PRIVATE */ 1498 1499 #endif /* !defined(DRIVERKIT) */ 1500 1501 #if defined(DRIVERKIT) || defined(KERNEL) 1502 #ifndef BPF_TAP_MODE_T 1503 #define BPF_TAP_MODE_T 1504 /*! 1505 * @enum BPF tap mode 1506 * @abstract Constants defining interface families. 1507 * @constant BPF_MODE_DISABLED Disable bpf. 1508 * @constant BPF_MODE_INPUT Enable input only. 1509 * @constant BPF_MODE_OUTPUT Enable output only. 1510 * @constant BPF_MODE_INPUT_OUTPUT Enable input and output. 1511 */ 1512 1513 enum { 1514 BPF_MODE_DISABLED = 0, 1515 BPF_MODE_INPUT = 1, 1516 BPF_MODE_OUTPUT = 2, 1517 BPF_MODE_INPUT_OUTPUT = 3 1518 }; 1519 /*! 1520 * @typedef bpf_tap_mode 1521 * @abstract Mode for tapping. BPF_MODE_DISABLED/BPF_MODE_INPUT_OUTPUT etc. 1522 */ 1523 typedef uint32_t bpf_tap_mode; 1524 #endif /* !BPF_TAP_MODE_T */ 1525 #endif /* defined(DRIVERKIT) || defined(KERNEL) */ 1526 1527 #ifdef KERNEL 1528 /*! 1529 * @typedef bpf_send_func 1530 * @discussion bpf_send_func is called when a bpf file descriptor is 1531 * used to send a raw packet on the interface. The mbuf and data 1532 * link type are specified. The callback is responsible for 1533 * releasing the mbuf whether or not it returns an error. 1534 * @param interface The interface the packet is being sent on. 1535 * @param data_link_type The data link type the bpf device is attached to. 1536 * @param packet The packet to be sent. 1537 */ 1538 typedef errno_t (*bpf_send_func)(ifnet_t interface, u_int32_t data_link_type, 1539 mbuf_t packet); 1540 1541 /*! 1542 * @typedef bpf_tap_func 1543 * @discussion bpf_tap_func is called when the tap state of the 1544 * interface changes. This happens when a bpf device attaches to an 1545 * interface or detaches from an interface. The tap mode will join 1546 * together (bit or) the modes of all bpf devices using that 1547 * interface for that dlt. If you return an error from this 1548 * function, the bpf device attach attempt that triggered the tap 1549 * will fail. If this function was called bacuse the tap state was 1550 * decreasing (tap in or out is stopping), the error will be 1551 * ignored. 1552 * @param interface The interface being tapped. 1553 * @param data_link_type The data link type being tapped. 1554 * @param direction The direction of the tap. 1555 */ 1556 typedef errno_t (*bpf_tap_func)(ifnet_t interface, u_int32_t data_link_type, 1557 bpf_tap_mode direction); 1558 1559 /*! 1560 * @function bpfattach 1561 * @discussion Registers an interface with BPF. This allows bpf devices 1562 * to attach to your interface to capture packets. Your interface 1563 * will be unregistered automatically when your interface is 1564 * detached. 1565 * @param interface The interface to register with BPF. 1566 * @param data_link_type The data link type of the interface. See the 1567 * DLT_* defines in bpf.h. 1568 * @param header_length The length, in bytes, of the data link header. 1569 */ 1570 extern void bpfattach(ifnet_t interface, u_int data_link_type, 1571 u_int header_length); 1572 1573 /*! 1574 * @function bpf_attach 1575 * @discussion Registers an interface with BPF. This allows bpf devices 1576 * to attach to your interface to capture and transmit packets. 1577 * Your interface will be unregistered automatically when your 1578 * interface is detached. You may register multiple times with 1579 * different data link types. An 802.11 interface would use this to 1580 * allow clients to pick whether they want just an ethernet style 1581 * frame or the 802.11 wireless headers as well. The first dlt you 1582 * register will be considered the default. Any bpf device attaches 1583 * that do not specify a data link type will use the default. 1584 * @param interface The interface to register with BPF. 1585 * @param data_link_type The data link type of the interface. See the 1586 * DLT_* defines in bpf.h. 1587 * @param header_length The length, in bytes, of the data link header. 1588 * @param send See the bpf_send_func described above. 1589 * @param tap See the bpf_tap_func described above. 1590 */ 1591 extern errno_t bpf_attach(ifnet_t interface, u_int32_t data_link_type, 1592 u_int32_t header_length, bpf_send_func send, bpf_tap_func tap); 1593 1594 /*! 1595 * @function bpf_tap_in 1596 * @discussion Call this function when your interface receives a 1597 * packet. This function will check if any bpf devices need a 1598 * a copy of the packet. 1599 * @param interface The interface the packet was received on. 1600 * @param dlt The data link type of the packet. 1601 * @param packet The packet received. 1602 * @param header An optional pointer to a header that will be prepended. 1603 * @param header_len If the header was specified, the length of the header. 1604 */ 1605 extern void bpf_tap_in(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1606 void *__sized_by(header_len) header, size_t header_len); 1607 1608 /*! 1609 * @function bpf_tap_out 1610 * @discussion Call this function when your interface transmits a 1611 * packet. This function will check if any bpf devices need a 1612 * a copy of the packet. 1613 * @param interface The interface the packet was or will be transmitted on. 1614 * @param dlt The data link type of the packet. 1615 * @param packet The packet received. 1616 * @param header An optional pointer to a header that will be prepended. 1617 * @param header_len If the header was specified, the length of the header. 1618 */ 1619 extern void bpf_tap_out(ifnet_t interface, u_int32_t dlt, mbuf_t packet, 1620 void *__sized_by(header_len) header, size_t header_len); 1621 1622 #if SKYWALK 1623 /*! 1624 * @function bpf_tap_packet_in 1625 * @discussion Call this function when your interface receives a 1626 * packet. This function will check if any bpf devices need a 1627 * a copy of the packet. 1628 * @param interface The interface the packet was received on. 1629 * @param dlt The data link type of the packet. 1630 * @param packet The packet received. 1631 * @param header An optional pointer to a header that will be prepended. 1632 * @param header_len If the header was specified, the length of the header. 1633 */ 1634 extern void bpf_tap_packet_in(ifnet_t interface, u_int32_t dlt, 1635 kern_packet_t packet, void *__sized_by(header_len) header, size_t header_len); 1636 1637 /*! 1638 * @function bpf_tap_packet_out 1639 * @discussion Call this function when your interface transmits a 1640 * packet. This function will check if any bpf devices need a 1641 * a copy of the packet. 1642 * @param interface The interface the packet was or will be transmitted on. 1643 * @param dlt The data link type of the packet. 1644 * @param packet The packet received. 1645 * @param header An optional pointer to a header that will be prepended. 1646 * @param header_len If the header was specified, the length of the header. 1647 */ 1648 extern void bpf_tap_packet_out(ifnet_t interface, u_int32_t dlt, 1649 kern_packet_t packet, void *__sized_by(header_len) header, size_t header_len); 1650 1651 #endif /* SKYWALK */ 1652 #endif /* KERNEL */ 1653 1654 #endif /* _NET_BPF_H_ */ 1655