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gems-kernel/source/THIRDPARTY/xnu/bsd/net/bpf.h
Sam Sneed f5727805f2 add darwin/xnu functionality
2024-06-03 11:29:39 -05:00

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/*
* Copyright (c) 2000-2022 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1990, 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from the Stanford/CMU enet packet filter,
* (net/enet.c) distributed as part of 4.3BSD, and code contributed
* to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
* Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)bpf.h 8.1 (Berkeley) 6/10/93
* @(#)bpf.h 1.34 (LBL) 6/16/96
*
* $FreeBSD: src/sys/net/bpf.h,v 1.21.2.3 2001/08/01 00:23:13 fenner Exp $
*/
/*
* NOTICE: This file was modified by SPARTA, Inc. in 2006 to introduce
* support for mandatory and extensible security protections. This notice
* is included in support of clause 2.2 (b) of the Apple Public License,
* Version 2.0.
*/
#ifndef _NET_BPF_H_
#define _NET_BPF_H_
#include <stdint.h>
#if !defined(DRIVERKIT)
#include <sys/param.h>
#include <sys/appleapiopts.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/cdefs.h>
#ifdef PRIVATE
#include <net/if_var.h>
#include <uuid/uuid.h>
struct bpf_setup_args {
uuid_t bsa_uuid;
char bsa_ifname[IFNAMSIZ];
};
#endif /* PRIVATE */
#ifdef KERNEL
#include <sys/kernel_types.h>
#if !defined(__i386__) && !defined(__x86_64__)
#define BPF_ALIGN 1
#else /* defined(__i386__) || defined(__x86_64__) */
#define BPF_ALIGN 0
#endif /* defined(__i386__) || defined(__x86_64__) */
#if !BPF_ALIGN
#define EXTRACT_SHORT(p) ((u_int16_t)ntohs(*(u_int16_t *)(void *)p))
#define EXTRACT_LONG(p) (ntohl(*(u_int32_t *)(void *)p))
#else
#define EXTRACT_SHORT(p) \
((u_int16_t)\
((u_int16_t)*((u_char *)p+0)<<8|\
(u_int16_t)*((u_char *)p+1)<<0))
#define EXTRACT_LONG(p) \
((u_int32_t)*((u_char *)p+0)<<24|\
(u_int32_t)*((u_char *)p+1)<<16|\
(u_int32_t)*((u_char *)p+2)<<8|\
(u_int32_t)*((u_char *)p+3)<<0)
#endif
#endif /* KERNEL */
/* BSD style release date */
#define BPF_RELEASE 199606
typedef int32_t bpf_int32;
typedef u_int32_t bpf_u_int32;
/*
* Alignment macros. BPF_WORDALIGN rounds up to the next
* even multiple of BPF_ALIGNMENT.
*/
#define BPF_ALIGNMENT sizeof(int32_t)
#define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1))
#define BPF_MAXINSNS 512
#define BPF_MAXBUFSIZE 0x80000
#define BPF_MINBUFSIZE 32
/*
* Structure for BIOCSETF.
*/
struct bpf_program {
u_int bf_len;
struct bpf_insn *bf_insns;
};
#ifdef KERNEL_PRIVATE
/*
* LP64 version of bpf_program. all pointers
* grow when we're dealing with a 64-bit process.
* WARNING - keep in sync with bpf_program
*/
struct bpf_program64 {
u_int bf_len;
user64_addr_t bf_insns __attribute__((aligned(8)));
};
struct bpf_program32 {
u_int bf_len;
user32_addr_t bf_insns;
};
#endif /* KERNEL_PRIVATE */
/*
* Struct returned by BIOCGSTATS.
*/
struct bpf_stat {
u_int bs_recv; /* number of packets received */
u_int bs_drop; /* number of packets dropped */
};
/*
* Struct return by BIOCVERSION. This represents the version number of
* the filter language described by the instruction encodings below.
* bpf understands a program iff kernel_major == filter_major &&
* kernel_minor >= filter_minor, that is, if the value returned by the
* running kernel has the same major number and a minor number equal
* equal to or less than the filter being downloaded. Otherwise, the
* results are undefined, meaning an error may be returned or packets
* may be accepted haphazardly.
* It has nothing to do with the source code version.
*/
struct bpf_version {
u_short bv_major;
u_short bv_minor;
};
#ifdef PRIVATE
struct bpf_comp_stats {
uint64_t bcs_total_read; /* number of packets read from device */
uint64_t bcs_total_size; /* total size of filtered packets */
uint64_t bcs_total_hdr_size; /* total header size of captured packets */
uint64_t bcs_count_no_common_prefix; /* count of packets not compressible */
uint64_t bcs_count_compressed_prefix; /* count of compressed packets */
uint64_t bcs_total_compressed_prefix_size; /* total size of compressed data */
uint64_t bcs_max_compressed_prefix_size; /* max compressed data size */
};
#endif /* PRIVATE */
#if defined(__LP64__)
#include <sys/_types/_timeval32.h>
#define BPF_TIMEVAL timeval32
#else
#define BPF_TIMEVAL timeval
#endif /* __LP64__ */
/* Current version number of filter architecture. */
#define BPF_MAJOR_VERSION 1
#define BPF_MINOR_VERSION 1
#define BIOCGBLEN _IOR('B',102, u_int)
#define BIOCSBLEN _IOWR('B',102, u_int)
#define BIOCSETF _IOW('B',103, struct bpf_program)
#ifdef KERNEL_PRIVATE
#define BIOCSETF64 _IOW('B',103, struct bpf_program64)
#define BIOCSETF32 _IOW('B',103, struct bpf_program32)
#endif /* KERNEL_PRIVATE */
#define BIOCFLUSH _IO('B',104)
#define BIOCPROMISC _IO('B',105)
#define BIOCGDLT _IOR('B',106, u_int)
#define BIOCGETIF _IOR('B',107, struct ifreq)
#define BIOCSETIF _IOW('B',108, struct ifreq)
#define BIOCSRTIMEOUT _IOW('B',109, struct timeval)
#ifdef KERNEL_PRIVATE
#define BIOCSRTIMEOUT64 _IOW('B',109, struct user64_timeval)
#define BIOCSRTIMEOUT32 _IOW('B',109, struct user32_timeval)
#endif /* KERNEL_PRIVATE */
#define BIOCGRTIMEOUT _IOR('B',110, struct timeval)
#ifdef KERNEL_PRIVATE
#define BIOCGRTIMEOUT64 _IOR('B',110, struct user64_timeval)
#define BIOCGRTIMEOUT32 _IOR('B',110, struct user32_timeval)
#endif /* KERNEL_PRIVATE */
#define BIOCGSTATS _IOR('B',111, struct bpf_stat)
#define BIOCIMMEDIATE _IOW('B',112, u_int)
#define BIOCVERSION _IOR('B',113, struct bpf_version)
#define BIOCGRSIG _IOR('B',114, u_int)
#define BIOCSRSIG _IOW('B',115, u_int)
#define BIOCGHDRCMPLT _IOR('B',116, u_int)
#define BIOCSHDRCMPLT _IOW('B',117, u_int)
#define BIOCGSEESENT _IOR('B',118, u_int)
#define BIOCSSEESENT _IOW('B',119, u_int)
#define BIOCSDLT _IOW('B',120, u_int)
#define BIOCGDLTLIST _IOWR('B',121, struct bpf_dltlist)
#ifdef PRIVATE
#define BIOCGETTC _IOR('B', 122, int)
#define BIOCSETTC _IOW('B', 123, int)
#define BIOCSEXTHDR _IOW('B', 124, u_int)
#define BIOCGIFATTACHCOUNT _IOWR('B', 125, struct ifreq)
#endif /* PRIVATE */
#define BIOCSETFNR _IOW('B', 126, struct bpf_program)
#ifdef KERNEL_PRIVATE
#define BIOCSETFNR64 _IOW('B',126, struct bpf_program64)
#define BIOCSETFNR32 _IOW('B',126, struct bpf_program32)
#endif /* KERNEL_PRIVATE */
#ifdef PRIVATE
#define BIOCGWANTPKTAP _IOR('B', 127, u_int)
#define BIOCSWANTPKTAP _IOWR('B', 127, u_int)
#define BIOCSHEADDROP _IOW('B', 128, int)
#define BIOCGHEADDROP _IOR('B', 128, int)
#define BIOCSTRUNCATE _IOW('B', 129, u_int)
#define BIOCGETUUID _IOR('B', 130, uuid_t)
#define BIOCSETUP _IOW('B', 131, struct bpf_setup_args)
#define BIOCSPKTHDRV2 _IOW('B', 132, int)
#define BIOCGPKTHDRV2 _IOW('B', 133, int)
#define BIOCGHDRCOMP _IOR('B', 134, int)
#define BIOCSHDRCOMP _IOW('B', 135, int)
#define BIOCGHDRCOMPSTATS _IOR('B', 136, struct bpf_comp_stats)
#define BIOCGHDRCOMPON _IOR('B', 137, int)
#define BIOCGDIRECTION _IOR('B', 138, int)
#define BIOCSDIRECTION _IOW('B', 139, int)
#define BIOCSWRITEMAX _IOW('B', 140, u_int)
#define BIOCGWRITEMAX _IOR('B', 141, u_int)
#define BIOCGBATCHWRITE _IOR('B', 142, int)
#define BIOCSBATCHWRITE _IOW('B', 143, int)
#endif /* PRIVATE */
/*
* Structure prepended to each packet.
*/
struct bpf_hdr {
struct BPF_TIMEVAL bh_tstamp; /* time stamp */
bpf_u_int32 bh_caplen; /* length of captured portion */
bpf_u_int32 bh_datalen; /* original length of packet */
u_short bh_hdrlen; /* length of bpf header (this struct
* plus alignment padding) */
};
#ifdef KERNEL
/*
* Because the structure above is not a multiple of 4 bytes, some compilers
* will insist on inserting padding; hence, sizeof(struct bpf_hdr) won't work.
* Only the kernel needs to know about it; applications use bh_hdrlen.
*/
#define SIZEOF_BPF_HDR (sizeof(struct bpf_hdr) <= 20 ? 18 : \
sizeof(struct bpf_hdr))
#endif
#ifdef PRIVATE
/*
* This structure must be a multiple of 4 bytes.
* It includes padding and spare fields that we can use later if desired.
*/
struct bpf_hdr_ext {
struct BPF_TIMEVAL bh_tstamp; /* time stamp */
bpf_u_int32 bh_caplen; /* length of captured portion */
bpf_u_int32 bh_datalen; /* original length of packet */
u_short bh_hdrlen; /* length of bpf header */
u_char bh_complen;
u_char bh_flags;
#define BPF_HDR_EXT_FLAGS_DIR_IN 0x00
#define BPF_HDR_EXT_FLAGS_DIR_OUT 0x01
#ifdef BSD_KERNEL_PRIVATE
#define BPF_HDR_EXT_FLAGS_TCP 0x02
#define BPF_HDR_EXT_FLAGS_UDP 0x04
#endif /* BSD_KERNEL_PRIVATE */
pid_t bh_pid; /* process PID */
char bh_comm[MAXCOMLEN + 1]; /* process command */
u_char bh_pktflags;
#define BPF_PKTFLAGS_TCP_REXMT 0x01
#define BPF_PKTFLAGS_START_SEQ 0x02
#define BPF_PKTFLAGS_LAST_PKT 0x04
#define BPF_PKTFLAGS_WAKE_PKT 0x08
uint16_t bh_trace_tag;
bpf_u_int32 bh_svc; /* service class */
bpf_u_int32 bh_flowid; /* kernel reserved; 0 in userland */
bpf_u_int32 bh_unsent_bytes; /* unsent bytes at interface */
bpf_u_int32 bh_unsent_snd; /* unsent bytes at socket buffer */
};
#define BPF_HDR_EXT_HAS_TRACE_TAG 1
/*
* External representation of the bpf descriptor
*/
struct xbpf_d {
uint32_t bd_structsize; /* Size of this structure. */
int32_t bd_dev_minor;
int32_t bd_sig;
uint32_t bd_slen;
uint32_t bd_hlen;
uint32_t bd_bufsize;
pid_t bd_pid;
uint8_t bd_promisc;
uint8_t bd_immediate;
uint8_t bd_hdrcmplt;
uint8_t bd_async;
uint8_t bd_headdrop;
uint8_t bd_direction;
uint8_t bh_compreq;
uint8_t bh_compenabled;
uint8_t bd_exthdr;
uint8_t bd_trunc;
uint8_t bd_pkthdrv2;
uint8_t bd_pad;
uint64_t bd_rcount;
uint64_t bd_dcount;
uint64_t bd_fcount;
uint64_t bd_wcount;
uint64_t bd_wdcount;
char bd_ifname[IFNAMSIZ];
uint64_t bd_comp_count;
uint64_t bd_comp_size;
uint32_t bd_scnt; /* number of packets in store buffer */
uint32_t bd_hcnt; /* number of packets in hold buffer */
uint64_t bd_read_count;
uint64_t bd_fsize;
};
#ifndef bd_seesent
/*
* Code compatibility workaround so that old versions of network_cmds will continue to build
* even if netstat -B shows an incorrect value.
*/
#define bd_seesent bd_direction
#endif /* bd_seesent */
#define _HAS_STRUCT_XBPF_D_ 2
struct bpf_comp_hdr {
struct BPF_TIMEVAL bh_tstamp; /* time stamp */
bpf_u_int32 bh_caplen; /* length of captured portion */
bpf_u_int32 bh_datalen; /* original length of packet */
u_short bh_hdrlen; /* length of bpf header (this struct
* plus alignment padding) */
u_char bh_complen; /* data portion compressed */
u_char bh_padding; /* data portion compressed */
};
#define HAS_BPF_HDR_COMP 1
#define BPF_HDR_COMP_LEN_MAX 255
/*
* Packet tap directions
*/
#define BPF_D_NONE 0x0 /* See no packet (for writing only) */
#define BPF_D_IN 0x1 /* See incoming packets */
#define BPF_D_OUT 0x2 /* See outgoing packets */
#define BPF_D_INOUT 0x3 /* See incoming and outgoing packets */
#endif /* PRIVATE */
#endif /* !defined(DRIVERKIT) */
/*
* Data-link level type codes.
*/
#define DLT_NULL 0 /* no link-layer encapsulation */
#define DLT_EN10MB 1 /* Ethernet (10Mb) */
#define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */
#define DLT_AX25 3 /* Amateur Radio AX.25 */
#define DLT_PRONET 4 /* Proteon ProNET Token Ring */
#define DLT_CHAOS 5 /* Chaos */
#define DLT_IEEE802 6 /* IEEE 802 Networks */
#define DLT_ARCNET 7 /* ARCNET */
#define DLT_SLIP 8 /* Serial Line IP */
#define DLT_PPP 9 /* Point-to-point Protocol */
#define DLT_FDDI 10 /* FDDI */
#define DLT_ATM_RFC1483 11 /* LLC/SNAP encapsulated atm */
#define DLT_RAW 12 /* raw IP */
/*
* These are values from BSD/OS's "bpf.h".
* These are not the same as the values from the traditional libpcap
* "bpf.h"; however, these values shouldn't be generated by any
* OS other than BSD/OS, so the correct values to use here are the
* BSD/OS values.
*
* Platforms that have already assigned these values to other
* DLT_ codes, however, should give these codes the values
* from that platform, so that programs that use these codes will
* continue to compile - even though they won't correctly read
* files of these types.
*/
#define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */
#define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */
/*
* 17 was used for DLT_PFLOG in OpenBSD; it no longer is.
*
* It was DLT_LANE8023 in SuSE 6.3, so we defined LINKTYPE_PFLOG
* as 117 so that pflog captures would use a link-layer header type
* value that didn't collide with any other values. On all
* platforms other than OpenBSD, we defined DLT_PFLOG as 117,
* and we mapped between LINKTYPE_PFLOG and DLT_PFLOG.
*
* OpenBSD eventually switched to using 117 for DLT_PFLOG as well.
*
* Don't use 17 for anything else.
*/
/*
* 18 is used for DLT_PFSYNC in OpenBSD, NetBSD, DragonFly BSD and
* Mac OS X; don't use it for anything else. (FreeBSD uses 121,
* which collides with DLT_HHDLC, even though it doesn't use 18
* for anything and doesn't appear to have ever used it for anything.)
*
* We define it as 18 on those platforms; it is, unfortunately, used
* for DLT_CIP in Suse 6.3, so we don't define it as DLT_PFSYNC
* in general. As the packet format for it, like that for
* DLT_PFLOG, is not only OS-dependent but OS-version-dependent,
* we don't support printing it in tcpdump except on OSes that
* have the relevant header files, so it's not that useful on
* other platforms.
*/
#define DLT_PFSYNC 18 /* Packet filter state syncing */
#define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */
/*
* These values are defined by NetBSD; other platforms should refrain from
* using them for other purposes, so that NetBSD savefiles with link
* types of 50 or 51 can be read as this type on all platforms.
*/
#define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */
#define DLT_PPP_ETHER 51 /* PPP over Ethernet */
/*
* The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses
* a link-layer type of 99 for the tcpdump it supplies. The link-layer
* header has 6 bytes of unknown data, something that appears to be an
* Ethernet type, and 36 bytes that appear to be 0 in at least one capture
* I've seen.
*/
#define DLT_SYMANTEC_FIREWALL 99
/*
* Values between 100 and 103 are used in capture file headers as
* link-layer header type LINKTYPE_ values corresponding to DLT_ types
* that differ between platforms; don't use those values for new DLT_
* new types.
*/
/*
* Values starting with 104 are used for newly-assigned link-layer
* header type values; for those link-layer header types, the DLT_
* value returned by pcap_datalink() and passed to pcap_open_dead(),
* and the LINKTYPE_ value that appears in capture files, are the
* same.
*
* DLT_MATCHING_MIN is the lowest such value; DLT_MATCHING_MAX is
* the highest such value.
*/
#define DLT_MATCHING_MIN 104
/*
* This value was defined by libpcap 0.5; platforms that have defined
* it with a different value should define it here with that value -
* a link type of 104 in a save file will be mapped to DLT_C_HDLC,
* whatever value that happens to be, so programs will correctly
* handle files with that link type regardless of the value of
* DLT_C_HDLC.
*
* The name DLT_C_HDLC was used by BSD/OS; we use that name for source
* compatibility with programs written for BSD/OS.
*
* libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
* for source compatibility with programs written for libpcap 0.5.
*/
#define DLT_C_HDLC 104 /* Cisco HDLC */
#define DLT_CHDLC DLT_C_HDLC
#define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */
/*
* Values between 106 and 107 are used in capture file headers as
* link-layer types corresponding to DLT_ types that might differ
* between platforms; don't use those values for new DLT_ new types.
*/
/*
* Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides
* with other values.
* DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header
* (DLCI, etc.).
*/
#define DLT_FRELAY 107
/*
* OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
* that the AF_ type in the link-layer header is in network byte order.
*
* OpenBSD defines it as 12, but that collides with DLT_RAW, so we
* define it as 108 here. If OpenBSD picks up this file, it should
* define DLT_LOOP as 12 in its version, as per the comment above -
* and should not use 108 for any purpose.
*/
#define DLT_LOOP 108
/*
* Values between 109 and 112 are used in capture file headers as
* link-layer types corresponding to DLT_ types that might differ
* between platforms; don't use those values for new DLT_ new types.
*/
/*
* Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
* DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other
* than OpenBSD.
*/
#define DLT_ENC 109
/*
* This is for Linux cooked sockets.
*/
#define DLT_LINUX_SLL 113
/*
* Apple LocalTalk hardware.
*/
#define DLT_LTALK 114
/*
* Acorn Econet.
*/
#define DLT_ECONET 115
/*
* Reserved for use with OpenBSD ipfilter.
*/
#define DLT_IPFILTER 116
/*
* For use in capture-file headers as a link-layer type corresponding
* to OpenBSD PF (Packet Filter) log.
*/
#define DLT_PFLOG 117
/*
* Registered for Cisco-internal use.
*/
#define DLT_CISCO_IOS 118
/*
* Reserved for 802.11 cards using the Prism II chips, with a link-layer
* header including Prism monitor mode information plus an 802.11
* header.
*/
#define DLT_PRISM_HEADER 119
/*
* Reserved for Aironet 802.11 cards, with an Aironet link-layer header
* (see Doug Ambrisko's FreeBSD patches).
*/
#define DLT_AIRONET_HEADER 120
/*
* Reserved for Siemens HiPath HDLC. XXX
*/
#define DLT_HHDLC 121
/*
* Reserved for RFC 2625 IP-over-Fibre Channel.
*/
#define DLT_IP_OVER_FC 122
/*
* Reserved for Full Frontal ATM on Solaris.
*/
#define DLT_SUNATM 123
/*
* Reserved as per request from Kent Dahlgren <kent@praesum.com>
* for private use.
*/
#define DLT_RIO 124 /* RapidIO */
#define DLT_PCI_EXP 125 /* PCI Express */
#define DLT_AURORA 126 /* Xilinx Aurora link layer */
/*
* BSD header for 802.11 plus a number of bits of link-layer information
* including radio information.
*/
#ifndef DLT_IEEE802_11_RADIO
#define DLT_IEEE802_11_RADIO 127
#endif
/*
* Reserved for TZSP encapsulation.
*/
#define DLT_TZSP 128 /* Tazmen Sniffer Protocol */
/*
* Reserved for Linux ARCNET.
*/
#define DLT_ARCNET_LINUX 129
/*
* Juniper-private data link types.
*/
#define DLT_JUNIPER_MLPPP 130
#define DLT_JUNIPER_MLFR 131
#define DLT_JUNIPER_ES 132
#define DLT_JUNIPER_GGSN 133
#define DLT_JUNIPER_MFR 134
#define DLT_JUNIPER_ATM2 135
#define DLT_JUNIPER_SERVICES 136
#define DLT_JUNIPER_ATM1 137
/*
* Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund
* <dieter@apple.com>. The header that's presented is an Ethernet-like
* header:
*
* #define FIREWIRE_EUI64_LEN 8
* struct firewire_header {
* u_char firewire_dhost[FIREWIRE_EUI64_LEN];
* u_char firewire_shost[FIREWIRE_EUI64_LEN];
* u_short firewire_type;
* };
*
* with "firewire_type" being an Ethernet type value, rather than,
* for example, raw GASP frames being handed up.
*/
#define DLT_APPLE_IP_OVER_IEEE1394 138
/*
* Various SS7 encapsulations, as per a request from Jeff Morriss
* <jeff.morriss[AT]ulticom.com> and subsequent discussions.
*/
#define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */
#define DLT_MTP2 140 /* MTP2, without pseudo-header */
#define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */
#define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */
/*
* Reserved for DOCSIS.
*/
#define DLT_DOCSIS 143
/*
* Reserved for Linux IrDA.
*/
#define DLT_LINUX_IRDA 144
/*
* Reserved for IBM SP switch and IBM Next Federation switch.
*/
#define DLT_IBM_SP 145
#define DLT_IBM_SN 146
/*
* Reserved for private use. If you have some link-layer header type
* that you want to use within your organization, with the capture files
* using that link-layer header type not ever be sent outside your
* organization, you can use these values.
*
* No libpcap release will use these for any purpose, nor will any
* tcpdump release use them, either.
*
* Do *NOT* use these in capture files that you expect anybody not using
* your private versions of capture-file-reading tools to read; in
* particular, do *NOT* use them in products, otherwise you may find that
* people won't be able to use tcpdump, or snort, or Ethereal, or... to
* read capture files from your firewall/intrusion detection/traffic
* monitoring/etc. appliance, or whatever product uses that DLT_ value,
* and you may also find that the developers of those applications will
* not accept patches to let them read those files.
*
* Also, do not use them if somebody might send you a capture using them
* for *their* private type and tools using them for *your* private type
* would have to read them.
*
* Instead, ask "tcpdump-workers@tcpdump.org" for a new DLT_ value,
* as per the comment above, and use the type you're given.
*/
#define DLT_USER0 147
#define DLT_USER1 148
#define DLT_USER2 149
#define DLT_USER3 150
#define DLT_USER4 151
#define DLT_USER5 152
#define DLT_USER6 153
#define DLT_USER7 154
#define DLT_USER8 155
#define DLT_USER9 156
#define DLT_USER10 157
#define DLT_USER11 158
#define DLT_USER12 159
#define DLT_USER13 160
#define DLT_USER14 161
#define DLT_USER15 162
#ifdef PRIVATE
/*
* For Apple private usage
*/
#define DLT_USER0_APPLE_INTERNAL DLT_USER0 /* rdar://12019509 */
#define DLT_USER1_APPLE_INTERNAL DLT_USER1 /* rdar://12019509 */
#define DLT_PKTAP DLT_USER2 /* rdar://11779467 */
#define DLT_USER3_APPLE_INTERNAL DLT_USER3 /* rdar://19614531 */
#define DLT_USER4_APPLE_INTERNAL DLT_USER4 /* rdar://19614531 */
#endif /* PRIVATE */
/*
* For future use with 802.11 captures - defined by AbsoluteValue
* Systems to store a number of bits of link-layer information
* including radio information:
*
* http://www.shaftnet.org/~pizza/software/capturefrm.txt
*
* but it might be used by some non-AVS drivers now or in the
* future.
*/
#define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>. The DLT_s are used
* for passing on chassis-internal metainformation such as
* QOS profiles, etc..
*/
#define DLT_JUNIPER_MONITOR 164
/*
* Reserved for BACnet MS/TP.
*/
#define DLT_BACNET_MS_TP 165
/*
* Another PPP variant as per request from Karsten Keil <kkeil@suse.de>.
*
* This is used in some OSes to allow a kernel socket filter to distinguish
* between incoming and outgoing packets, on a socket intended to
* supply pppd with outgoing packets so it can do dial-on-demand and
* hangup-on-lack-of-demand; incoming packets are filtered out so they
* don't cause pppd to hold the connection up (you don't want random
* input packets such as port scans, packets from old lost connections,
* etc. to force the connection to stay up).
*
* The first byte of the PPP header (0xff03) is modified to accomodate
* the direction - 0x00 = IN, 0x01 = OUT.
*/
#define DLT_PPP_PPPD 166
/*
* Names for backwards compatibility with older versions of some PPP
* software; new software should use DLT_PPP_PPPD.
*/
#define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD
#define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>. The DLT_s are used
* for passing on chassis-internal metainformation such as
* QOS profiles, cookies, etc..
*/
#define DLT_JUNIPER_PPPOE 167
#define DLT_JUNIPER_PPPOE_ATM 168
#define DLT_GPRS_LLC 169 /* GPRS LLC */
#define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */
#define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */
/*
* Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line
* monitoring equipment.
*/
#define DLT_GCOM_T1E1 172
#define DLT_GCOM_SERIAL 173
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>. The DLT_ is used
* for internal communication to Physical Interface Cards (PIC)
*/
#define DLT_JUNIPER_PIC_PEER 174
/*
* Link types requested by Gregor Maier <gregor@endace.com> of Endace
* Measurement Systems. They add an ERF header (see
* http://www.endace.com/support/EndaceRecordFormat.pdf) in front of
* the link-layer header.
*/
#define DLT_ERF_ETH 175 /* Ethernet */
#define DLT_ERF_POS 176 /* Packet-over-SONET */
/*
* Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD
* for vISDN (http://www.orlandi.com/visdn/). Its link-layer header
* includes additional information before the LAPD header, so it's
* not necessarily a generic LAPD header.
*/
#define DLT_LINUX_LAPD 177
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ are used for prepending meta-information
* like interface index, interface name
* before standard Ethernet, PPP, Frelay & C-HDLC Frames
*/
#define DLT_JUNIPER_ETHER 178
#define DLT_JUNIPER_PPP 179
#define DLT_JUNIPER_FRELAY 180
#define DLT_JUNIPER_CHDLC 181
/*
* Multi Link Frame Relay (FRF.16)
*/
#define DLT_MFR 182
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ is used for internal communication with a
* voice Adapter Card (PIC)
*/
#define DLT_JUNIPER_VP 183
/*
* Arinc 429 frames.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
* Every frame contains a 32bit A429 label.
* More documentation on Arinc 429 can be found at
* http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
*/
#define DLT_A429 184
/*
* Arinc 653 Interpartition Communication messages.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
* Please refer to the A653-1 standard for more information.
*/
#define DLT_A653_ICM 185
/*
* USB packets, beginning with a USB setup header; requested by
* Paolo Abeni <paolo.abeni@email.it>.
*/
#define DLT_USB 186
/*
* Bluetooth HCI UART transport layer (part H:4); requested by
* Paolo Abeni.
*/
#define DLT_BLUETOOTH_HCI_H4 187
/*
* IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz
* <cruz_petagay@bah.com>.
*/
#define DLT_IEEE802_16_MAC_CPS 188
/*
* USB packets, beginning with a Linux USB header; requested by
* Paolo Abeni <paolo.abeni@email.it>.
*/
#define DLT_USB_LINUX 189
/*
* Controller Area Network (CAN) v. 2.0B packets.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
* Used to dump CAN packets coming from a CAN Vector board.
* More documentation on the CAN v2.0B frames can be found at
* http://www.can-cia.org/downloads/?269
*/
#define DLT_CAN20B 190
/*
* IEEE 802.15.4, with address fields padded, as is done by Linux
* drivers; requested by Juergen Schimmer.
*/
#define DLT_IEEE802_15_4_LINUX 191
/*
* Per Packet Information encapsulated packets.
* DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
*/
#define DLT_PPI 192
/*
* Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header;
* requested by Charles Clancy.
*/
#define DLT_IEEE802_16_MAC_CPS_RADIO 193
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ is used for internal communication with a
* integrated service module (ISM).
*/
#define DLT_JUNIPER_ISM 194
/*
* IEEE 802.15.4, exactly as it appears in the spec (no padding, no
* nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>.
*/
#define DLT_IEEE802_15_4 195
/*
* Various link-layer types, with a pseudo-header, for SITA
* (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com).
*/
#define DLT_SITA 196
/*
* Various link-layer types, with a pseudo-header, for Endace DAG cards;
* encapsulates Endace ERF records. Requested by Stephen Donnelly
* <stephen@endace.com>.
*/
#define DLT_ERF 197
/*
* Special header prepended to Ethernet packets when capturing from a
* u10 Networks board. Requested by Phil Mulholland
* <phil@u10networks.com>.
*/
#define DLT_RAIF1 198
/*
* IPMB packet for IPMI, beginning with the I2C slave address, followed
* by the netFn and LUN, etc.. Requested by Chanthy Toeung
* <chanthy.toeung@ca.kontron.com>.
*/
#define DLT_IPMB 199
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
* The DLT_ is used for capturing data on a secure tunnel interface.
*/
#define DLT_JUNIPER_ST 200
/*
* Bluetooth HCI UART transport layer (part H:4), with pseudo-header
* that includes direction information; requested by Paolo Abeni.
*/
#define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201
/*
* AX.25 packet with a 1-byte KISS header; see
*
* http://www.ax25.net/kiss.htm
*
* as per Richard Stearn <richard@rns-stearn.demon.co.uk>.
*/
#define DLT_AX25_KISS 202
/*
* LAPD packets from an ISDN channel, starting with the address field,
* with no pseudo-header.
* Requested by Varuna De Silva <varunax@gmail.com>.
*/
#define DLT_LAPD 203
/*
* Variants of various link-layer headers, with a one-byte direction
* pseudo-header prepended - zero means "received by this host",
* non-zero (any non-zero value) means "sent by this host" - as per
* Will Barker <w.barker@zen.co.uk>.
*/
#define DLT_PPP_WITH_DIR 204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */
#define DLT_C_HDLC_WITH_DIR 205 /* Cisco HDLC */
#define DLT_FRELAY_WITH_DIR 206 /* Frame Relay */
#define DLT_LAPB_WITH_DIR 207 /* LAPB */
/*
* 208 is reserved for an as-yet-unspecified proprietary link-layer
* type, as requested by Will Barker.
*/
/*
* IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman
* <avn@pigeonpoint.com>.
*/
#define DLT_IPMB_LINUX 209
/*
* FlexRay automotive bus - http://www.flexray.com/ - as requested
* by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_FLEXRAY 210
/*
* Media Oriented Systems Transport (MOST) bus for multimedia
* transport - http://www.mostcooperation.com/ - as requested
* by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_MOST 211
/*
* Local Interconnect Network (LIN) bus for vehicle networks -
* http://www.lin-subbus.org/ - as requested by Hannes Kaelber
* <hannes.kaelber@x2e.de>.
*/
#define DLT_LIN 212
/*
* X2E-private data link type used for serial line capture,
* as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_X2E_SERIAL 213
/*
* X2E-private data link type used for the Xoraya data logger
* family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
*/
#define DLT_X2E_XORAYA 214
/*
* IEEE 802.15.4, exactly as it appears in the spec (no padding, no
* nothing), but with the PHY-level data for non-ASK PHYs (4 octets
* of 0 as preamble, one octet of SFD, one octet of frame length+
* reserved bit, and then the MAC-layer data, starting with the
* frame control field).
*
* Requested by Max Filippov <jcmvbkbc@gmail.com>.
*/
#define DLT_IEEE802_15_4_NONASK_PHY 215
/*
* David Gibson <david@gibson.dropbear.id.au> requested this for
* captures from the Linux kernel /dev/input/eventN devices. This
* is used to communicate keystrokes and mouse movements from the
* Linux kernel to display systems, such as Xorg.
*/
#define DLT_LINUX_EVDEV 216
/*
* GSM Um and Abis interfaces, preceded by a "gsmtap" header.
*
* Requested by Harald Welte <laforge@gnumonks.org>.
*/
#define DLT_GSMTAP_UM 217
#define DLT_GSMTAP_ABIS 218
/*
* MPLS, with an MPLS label as the link-layer header.
* Requested by Michele Marchetto <michele@openbsd.org> on behalf
* of OpenBSD.
*/
#define DLT_MPLS 219
/*
* USB packets, beginning with a Linux USB header, with the USB header
* padded to 64 bytes; required for memory-mapped access.
*/
#define DLT_USB_LINUX_MMAPPED 220
/*
* DECT packets, with a pseudo-header; requested by
* Matthias Wenzel <tcpdump@mazzoo.de>.
*/
#define DLT_DECT 221
/*
* From: "Lidwa, Eric (GSFC-582.0)[SGT INC]" <eric.lidwa-1@nasa.gov>
* Date: Mon, 11 May 2009 11:18:30 -0500
*
* DLT_AOS. We need it for AOS Space Data Link Protocol.
* I have already written dissectors for but need an OK from
* legal before I can submit a patch.
*
*/
#define DLT_AOS 222
/*
* Wireless HART (Highway Addressable Remote Transducer)
* From the HART Communication Foundation
* IES/PAS 62591
*
* Requested by Sam Roberts <vieuxtech@gmail.com>.
*/
#define DLT_WIHART 223
/*
* Fibre Channel FC-2 frames, beginning with a Frame_Header.
* Requested by Kahou Lei <kahou82@gmail.com>.
*/
#define DLT_FC_2 224
/*
* Fibre Channel FC-2 frames, beginning with an encoding of the
* SOF, and ending with an encoding of the EOF.
*
* The encodings represent the frame delimiters as 4-byte sequences
* representing the corresponding ordered sets, with K28.5
* represented as 0xBC, and the D symbols as the corresponding
* byte values; for example, SOFi2, which is K28.5 - D21.5 - D1.2 - D21.2,
* is represented as 0xBC 0xB5 0x55 0x55.
*
* Requested by Kahou Lei <kahou82@gmail.com>.
*/
#define DLT_FC_2_WITH_FRAME_DELIMS 225
/*
* Solaris ipnet pseudo-header; requested by Darren Reed <Darren.Reed@Sun.COM>.
*
* The pseudo-header starts with a one-byte version number; for version 2,
* the pseudo-header is:
*
* struct dl_ipnetinfo {
* u_int8_t dli_version;
* u_int8_t dli_family;
* u_int16_t dli_htype;
* u_int32_t dli_pktlen;
* u_int32_t dli_ifindex;
* u_int32_t dli_grifindex;
* u_int32_t dli_zsrc;
* u_int32_t dli_zdst;
* };
*
* dli_version is 2 for the current version of the pseudo-header.
*
* dli_family is a Solaris address family value, so it's 2 for IPv4
* and 26 for IPv6.
*
* dli_htype is a "hook type" - 0 for incoming packets, 1 for outgoing
* packets, and 2 for packets arriving from another zone on the same
* machine.
*
* dli_pktlen is the length of the packet data following the pseudo-header
* (so the captured length minus dli_pktlen is the length of the
* pseudo-header, assuming the entire pseudo-header was captured).
*
* dli_ifindex is the interface index of the interface on which the
* packet arrived.
*
* dli_grifindex is the group interface index number (for IPMP interfaces).
*
* dli_zsrc is the zone identifier for the source of the packet.
*
* dli_zdst is the zone identifier for the destination of the packet.
*
* A zone number of 0 is the global zone; a zone number of 0xffffffff
* means that the packet arrived from another host on the network, not
* from another zone on the same machine.
*
* An IPv4 or IPv6 datagram follows the pseudo-header; dli_family indicates
* which of those it is.
*/
#define DLT_IPNET 226
/*
* CAN (Controller Area Network) frames, with a pseudo-header as supplied
* by Linux SocketCAN. See Documentation/networking/can.txt in the Linux
* source.
*
* Requested by Felix Obenhuber <felix@obenhuber.de>.
*/
#define DLT_CAN_SOCKETCAN 227
/*
* Raw IPv4/IPv6; different from DLT_RAW in that the DLT_ value specifies
* whether it's v4 or v6. Requested by Darren Reed <Darren.Reed@Sun.COM>.
*/
#define DLT_IPV4 228
#define DLT_IPV6 229
/*
* IEEE 802.15.4, exactly as it appears in the spec (no padding, no
* nothing), and with no FCS at the end of the frame; requested by
* Jon Smirl <jonsmirl@gmail.com>.
*/
#define DLT_IEEE802_15_4_NOFCS 230
/*
* Raw D-Bus:
*
* http://www.freedesktop.org/wiki/Software/dbus
*
* messages:
*
* http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-messages
*
* starting with the endianness flag, followed by the message type, etc.,
* but without the authentication handshake before the message sequence:
*
* http://dbus.freedesktop.org/doc/dbus-specification.html#auth-protocol
*
* Requested by Martin Vidner <martin@vidner.net>.
*/
#define DLT_DBUS 231
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
*/
#define DLT_JUNIPER_VS 232
#define DLT_JUNIPER_SRX_E2E 233
#define DLT_JUNIPER_FIBRECHANNEL 234
/*
* DVB-CI (DVB Common Interface for communication between a PC Card
* module and a DVB receiver). See
*
* http://www.kaiser.cx/pcap-dvbci.html
*
* for the specification.
*
* Requested by Martin Kaiser <martin@kaiser.cx>.
*/
#define DLT_DVB_CI 235
/*
* Variant of 3GPP TS 27.010 multiplexing protocol (similar to, but
* *not* the same as, 27.010). Requested by Hans-Christoph Schemmel
* <hans-christoph.schemmel@cinterion.com>.
*/
#define DLT_MUX27010 236
/*
* STANAG 5066 D_PDUs. Requested by M. Baris Demiray
* <barisdemiray@gmail.com>.
*/
#define DLT_STANAG_5066_D_PDU 237
/*
* Juniper-private data link type, as per request from
* Hannes Gredler <hannes@juniper.net>.
*/
#define DLT_JUNIPER_ATM_CEMIC 238
/*
* NetFilter LOG messages
* (payload of netlink NFNL_SUBSYS_ULOG/NFULNL_MSG_PACKET packets)
*
* Requested by Jakub Zawadzki <darkjames-ws@darkjames.pl>
*/
#define DLT_NFLOG 239
/*
* Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
* for Ethernet packets with a 4-byte pseudo-header and always
* with the payload including the FCS, as supplied by their
* netANALYZER hardware and software.
*
* Requested by Holger P. Frommer <HPfrommer@hilscher.com>
*/
#define DLT_NETANALYZER 240
/*
* Hilscher Gesellschaft fuer Systemautomation mbH link-layer type
* for Ethernet packets with a 4-byte pseudo-header and FCS and
* with the Ethernet header preceded by 7 bytes of preamble and
* 1 byte of SFD, as supplied by their netANALYZER hardware and
* software.
*
* Requested by Holger P. Frommer <HPfrommer@hilscher.com>
*/
#define DLT_NETANALYZER_TRANSPARENT 241
/*
* IP-over-Infiniband, as specified by RFC 4391.
*
* Requested by Petr Sumbera <petr.sumbera@oracle.com>.
*/
#define DLT_IPOIB 242
/*
* MPEG-2 transport stream (ISO 13818-1/ITU-T H.222.0).
*
* Requested by Guy Martin <gmsoft@tuxicoman.be>.
*/
#define DLT_MPEG_2_TS 243
/*
* ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as
* used by their ng40 protocol tester.
*
* Requested by Jens Grimmer <jens.grimmer@ng4t.com>.
*/
#define DLT_NG40 244
/*
* Pseudo-header giving adapter number and flags, followed by an NFC
* (Near-Field Communications) Logical Link Control Protocol (LLCP) PDU,
* as specified by NFC Forum Logical Link Control Protocol Technical
* Specification LLCP 1.1.
*
* Requested by Mike Wakerly <mikey@google.com>.
*/
#define DLT_NFC_LLCP 245
/*
* USB packets, beginning with a Darwin (macOS, etc.) USB header.
*/
#define DLT_USB_DARWIN 266
#define DLT_MATCHING_MAX 266 /* highest value in the "matching" range */
#if !defined(DRIVERKIT)
/*
* The instruction encodings.
*/
/* instruction classes */
#define BPF_CLASS(code) ((code) & 0x07)
#define BPF_LD 0x00
#define BPF_LDX 0x01
#define BPF_ST 0x02
#define BPF_STX 0x03
#define BPF_ALU 0x04
#define BPF_JMP 0x05
#define BPF_RET 0x06
#define BPF_MISC 0x07
/* ld/ldx fields */
#define BPF_SIZE(code) ((code) & 0x18)
#define BPF_W 0x00
#define BPF_H 0x08
#define BPF_B 0x10
#define BPF_MODE(code) ((code) & 0xe0)
#define BPF_IMM 0x00
#define BPF_ABS 0x20
#define BPF_IND 0x40
#define BPF_MEM 0x60
#define BPF_LEN 0x80
#define BPF_MSH 0xa0
/* alu/jmp fields */
#define BPF_OP(code) ((code) & 0xf0)
#define BPF_ADD 0x00
#define BPF_SUB 0x10
#define BPF_MUL 0x20
#define BPF_DIV 0x30
#define BPF_OR 0x40
#define BPF_AND 0x50
#define BPF_LSH 0x60
#define BPF_RSH 0x70
#define BPF_NEG 0x80
#define BPF_JA 0x00
#define BPF_JEQ 0x10
#define BPF_JGT 0x20
#define BPF_JGE 0x30
#define BPF_JSET 0x40
#define BPF_SRC(code) ((code) & 0x08)
#define BPF_K 0x00
#define BPF_X 0x08
/* ret - BPF_K and BPF_X also apply */
#define BPF_RVAL(code) ((code) & 0x18)
#define BPF_A 0x10
/* misc */
#define BPF_MISCOP(code) ((code) & 0xf8)
#define BPF_TAX 0x00
#define BPF_TXA 0x80
/*
* Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST).
*/
#define BPF_MEMWORDS 16
/*
* The instruction data structure.
*/
struct bpf_insn {
u_short code;
u_char jt;
u_char jf;
bpf_u_int32 k;
};
/*
* Macros for insn array initializers.
*/
#define BPF_STMT(code, k) { (u_short)(code), 0, 0, k }
#define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k }
#pragma pack(4)
/*
* Structure to retrieve available DLTs for the interface.
*/
struct bpf_dltlist {
u_int32_t bfl_len; /* number of bfd_list array */
union {
u_int32_t *bflu_list; /* array of DLTs */
u_int64_t bflu_pad;
} bfl_u;
};
#define bfl_list bfl_u.bflu_list
#pragma pack()
#ifdef KERNEL_PRIVATE
#define BPF_MIN_PKT_SIZE 40
#define PORT_DNS 53
#define PORT_BOOTPS 67
#define PORT_BOOTPC 68
#define PORT_ISAKMP 500
#define PORT_ISAKMP_NATT 4500 /* rfc3948 */
/* Forward declerations */
struct ifnet;
struct mbuf;
#define BPF_PACKET_TYPE_MBUF 0
#if SKYWALK
#define BPF_PACKET_TYPE_PKT 1
#include <skywalk/os_skywalk.h>
#endif /* SKYWALK */
struct bpf_packet {
int bpfp_type;
void * bpfp_header; /* optional */
size_t bpfp_header_length;
union {
struct mbuf *bpfpu_mbuf;
void * bpfpu_ptr;
#if SKYWALK
kern_packet_t bpfpu_pkt;
#define bpfp_pkt bpfp_u.bpfpu_pkt
#endif /* SKYWALK */
} bpfp_u;
#define bpfp_mbuf bpfp_u.bpfpu_mbuf
#define bpfp_ptr bpfp_u.bpfpu_ptr
size_t bpfp_total_length; /* length including optional header */
};
extern int bpf_validate(const struct bpf_insn *, int);
extern void bpfdetach(struct ifnet *);
extern void bpfilterattach(int);
extern u_int bpf_filter(const struct bpf_insn *, u_char *, u_int, u_int);
#endif /* KERNEL_PRIVATE */
#endif /* !defined(DRIVERKIT) */
#if defined(DRIVERKIT) || defined(KERNEL)
#ifndef BPF_TAP_MODE_T
#define BPF_TAP_MODE_T
/*!
* @enum BPF tap mode
* @abstract Constants defining interface families.
* @constant BPF_MODE_DISABLED Disable bpf.
* @constant BPF_MODE_INPUT Enable input only.
* @constant BPF_MODE_OUTPUT Enable output only.
* @constant BPF_MODE_INPUT_OUTPUT Enable input and output.
*/
enum {
BPF_MODE_DISABLED = 0,
BPF_MODE_INPUT = 1,
BPF_MODE_OUTPUT = 2,
BPF_MODE_INPUT_OUTPUT = 3
};
/*!
* @typedef bpf_tap_mode
* @abstract Mode for tapping. BPF_MODE_DISABLED/BPF_MODE_INPUT_OUTPUT etc.
*/
typedef uint32_t bpf_tap_mode;
#endif /* !BPF_TAP_MODE_T */
#endif /* defined(DRIVERKIT) || defined(KERNEL) */
#ifdef KERNEL
/*!
* @typedef bpf_send_func
* @discussion bpf_send_func is called when a bpf file descriptor is
* used to send a raw packet on the interface. The mbuf and data
* link type are specified. The callback is responsible for
* releasing the mbuf whether or not it returns an error.
* @param interface The interface the packet is being sent on.
* @param data_link_type The data link type the bpf device is attached to.
* @param packet The packet to be sent.
*/
typedef errno_t (*bpf_send_func)(ifnet_t interface, u_int32_t data_link_type,
mbuf_t packet);
/*!
* @typedef bpf_tap_func
* @discussion bpf_tap_func is called when the tap state of the
* interface changes. This happens when a bpf device attaches to an
* interface or detaches from an interface. The tap mode will join
* together (bit or) the modes of all bpf devices using that
* interface for that dlt. If you return an error from this
* function, the bpf device attach attempt that triggered the tap
* will fail. If this function was called bacuse the tap state was
* decreasing (tap in or out is stopping), the error will be
* ignored.
* @param interface The interface being tapped.
* @param data_link_type The data link type being tapped.
* @param direction The direction of the tap.
*/
typedef errno_t (*bpf_tap_func)(ifnet_t interface, u_int32_t data_link_type,
bpf_tap_mode direction);
/*!
* @function bpfattach
* @discussion Registers an interface with BPF. This allows bpf devices
* to attach to your interface to capture packets. Your interface
* will be unregistered automatically when your interface is
* detached.
* @param interface The interface to register with BPF.
* @param data_link_type The data link type of the interface. See the
* DLT_* defines in bpf.h.
* @param header_length The length, in bytes, of the data link header.
*/
extern void bpfattach(ifnet_t interface, u_int data_link_type,
u_int header_length);
/*!
* @function bpf_attach
* @discussion Registers an interface with BPF. This allows bpf devices
* to attach to your interface to capture and transmit packets.
* Your interface will be unregistered automatically when your
* interface is detached. You may register multiple times with
* different data link types. An 802.11 interface would use this to
* allow clients to pick whether they want just an ethernet style
* frame or the 802.11 wireless headers as well. The first dlt you
* register will be considered the default. Any bpf device attaches
* that do not specify a data link type will use the default.
* @param interface The interface to register with BPF.
* @param data_link_type The data link type of the interface. See the
* DLT_* defines in bpf.h.
* @param header_length The length, in bytes, of the data link header.
* @param send See the bpf_send_func described above.
* @param tap See the bpf_tap_func described above.
*/
extern errno_t bpf_attach(ifnet_t interface, u_int32_t data_link_type,
u_int32_t header_length, bpf_send_func send, bpf_tap_func tap);
/*!
* @function bpf_tap_in
* @discussion Call this function when your interface receives a
* packet. This function will check if any bpf devices need a
* a copy of the packet.
* @param interface The interface the packet was received on.
* @param dlt The data link type of the packet.
* @param packet The packet received.
* @param header An optional pointer to a header that will be prepended.
* @param header_len If the header was specified, the length of the header.
*/
extern void bpf_tap_in(ifnet_t interface, u_int32_t dlt, mbuf_t packet,
void *header, size_t header_len);
/*!
* @function bpf_tap_out
* @discussion Call this function when your interface transmits a
* packet. This function will check if any bpf devices need a
* a copy of the packet.
* @param interface The interface the packet was or will be transmitted on.
* @param dlt The data link type of the packet.
* @param packet The packet received.
* @param header An optional pointer to a header that will be prepended.
* @param header_len If the header was specified, the length of the header.
*/
extern void bpf_tap_out(ifnet_t interface, u_int32_t dlt, mbuf_t packet,
void *header, size_t header_len);
#if SKYWALK
/*!
* @function bpf_tap_packet_in
* @discussion Call this function when your interface receives a
* packet. This function will check if any bpf devices need a
* a copy of the packet.
* @param interface The interface the packet was received on.
* @param dlt The data link type of the packet.
* @param packet The packet received.
* @param header An optional pointer to a header that will be prepended.
* @param header_len If the header was specified, the length of the header.
*/
extern void bpf_tap_packet_in(ifnet_t interface, u_int32_t dlt,
kern_packet_t packet, void *header, size_t header_len);
/*!
* @function bpf_tap_packet_out
* @discussion Call this function when your interface transmits a
* packet. This function will check if any bpf devices need a
* a copy of the packet.
* @param interface The interface the packet was or will be transmitted on.
* @param dlt The data link type of the packet.
* @param packet The packet received.
* @param header An optional pointer to a header that will be prepended.
* @param header_len If the header was specified, the length of the header.
*/
extern void bpf_tap_packet_out(ifnet_t interface, u_int32_t dlt,
kern_packet_t packet, void *header, size_t header_len);
#endif /* SKYWALK */
#endif /* KERNEL */
#endif /* _NET_BPF_H_ */
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