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