820 lines
24 KiB
C
820 lines
24 KiB
C
/*-
|
|
* 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.
|
|
* 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
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NET_BPF_H_
|
|
#define _NET_BPF_H_
|
|
|
|
/* 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(long)
|
|
#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;
|
|
};
|
|
|
|
/*
|
|
* 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;
|
|
};
|
|
/* 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)
|
|
#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)
|
|
#define BIOCGRTIMEOUT _IOR('B',110, struct timeval)
|
|
#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 BIOCGDIRECTION _IOR('B',118, u_int)
|
|
#define BIOCSDIRECTION _IOW('B',119, u_int)
|
|
#define BIOCSDLT _IOW('B',120, u_int)
|
|
#define BIOCGDLTLIST _IOWR('B',121, struct bpf_dltlist)
|
|
#define BIOCLOCK _IO('B', 122)
|
|
#define BIOCSETWF _IOW('B',123, struct bpf_program)
|
|
#define BIOCFEEDBACK _IOW('B',124, u_int)
|
|
|
|
/* Obsolete */
|
|
#define BIOCGSEESENT BIOCGDIRECTION
|
|
#define BIOCSSEESENT BIOCSDIRECTION
|
|
|
|
/* Packet directions */
|
|
enum bpf_direction {
|
|
BPF_D_IN, /* See incoming packets */
|
|
BPF_D_INOUT, /* See incoming and outgoing packets */
|
|
BPF_D_OUT /* See outgoing packets */
|
|
};
|
|
|
|
/*
|
|
* Structure prepended to each packet.
|
|
*/
|
|
struct bpf_hdr {
|
|
struct 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) */
|
|
};
|
|
/*
|
|
* 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.
|
|
*/
|
|
#ifdef _KERNEL
|
|
#define SIZEOF_BPF_HDR (sizeof(struct bpf_hdr) <= 20 ? 18 : \
|
|
sizeof(struct bpf_hdr))
|
|
#endif
|
|
|
|
/*
|
|
* Data-link level type codes.
|
|
*/
|
|
#define DLT_NULL 0 /* BSD loopback 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 */
|
|
|
|
#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 */
|
|
|
|
/*
|
|
* Reserved for the Symantec Enterprise Firewall.
|
|
*/
|
|
#define DLT_SYMANTEC_FIREWALL 99
|
|
|
|
|
|
/*
|
|
* 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 as a DLT_ value.
|
|
*/
|
|
#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
|
|
|
|
/*
|
|
* Reserved for use in capture-file headers as a link-layer type
|
|
* corresponding to OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD,
|
|
* but that's DLT_LANE8023 in SuSE 6.3, so we can't use 17 for it
|
|
* in capture-file headers.
|
|
*/
|
|
#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 use by OpenBSD's pfsync device.
|
|
*/
|
|
#define DLT_PFSYNC 121
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* 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 }
|
|
|
|
/*
|
|
* Structure to retrieve available DLTs for the interface.
|
|
*/
|
|
struct bpf_dltlist {
|
|
u_int bfl_len; /* number of bfd_list array */
|
|
u_int *bfl_list; /* array of DLTs */
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* Descriptor associated with each attached hardware interface.
|
|
*/
|
|
struct bpf_if {
|
|
LIST_ENTRY(bpf_if) bif_next; /* list of all interfaces */
|
|
LIST_HEAD(, bpf_d) bif_dlist; /* descriptor list */
|
|
u_int bif_dlt; /* link layer type */
|
|
u_int bif_hdrlen; /* length of header (with padding) */
|
|
struct ifnet *bif_ifp; /* corresponding interface */
|
|
struct mtx bif_mtx; /* mutex for interface */
|
|
};
|
|
|
|
int bpf_validate(const struct bpf_insn *, int);
|
|
void bpf_tap(struct bpf_if *, u_char *, u_int);
|
|
void bpf_mtap(struct bpf_if *, struct mbuf *);
|
|
void bpf_mtap2(struct bpf_if *, void *, u_int, struct mbuf *);
|
|
void bpfattach(struct ifnet *, u_int, u_int);
|
|
void bpfattach2(struct ifnet *, u_int, u_int, struct bpf_if **);
|
|
void bpfdetach(struct ifnet *);
|
|
|
|
void bpfilterattach(int);
|
|
u_int bpf_filter(const struct bpf_insn *, u_char *, u_int, u_int);
|
|
|
|
static __inline int
|
|
bpf_peers_present(struct bpf_if *bpf)
|
|
{
|
|
|
|
if (!LIST_EMPTY(&bpf->bif_dlist))
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
#define BPF_TAP(_ifp,_pkt,_pktlen) do { \
|
|
if (bpf_peers_present((_ifp)->if_bpf)) \
|
|
bpf_tap((_ifp)->if_bpf, (_pkt), (_pktlen)); \
|
|
} while (0)
|
|
#define BPF_MTAP(_ifp,_m) do { \
|
|
if (bpf_peers_present((_ifp)->if_bpf)) { \
|
|
M_ASSERTVALID(_m); \
|
|
bpf_mtap((_ifp)->if_bpf, (_m)); \
|
|
} \
|
|
} while (0)
|
|
#define BPF_MTAP2(_ifp,_data,_dlen,_m) do { \
|
|
if (bpf_peers_present((_ifp)->if_bpf)) { \
|
|
M_ASSERTVALID(_m); \
|
|
bpf_mtap2((_ifp)->if_bpf,(_data),(_dlen),(_m)); \
|
|
} \
|
|
} while (0)
|
|
#endif
|
|
|
|
/*
|
|
* Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST).
|
|
*/
|
|
#define BPF_MEMWORDS 16
|
|
|
|
#endif /* _NET_BPF_H_ */
|