/*- * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 * 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 7.1 (Berkeley) 5/7/91 * * @(#) $Header: /tcpdump/master/libpcap/pcap/bpf.h,v 1.19.2.8 2008-09-22 20:16:01 guy Exp $ (LBL) */ /* * This is libpcap's cut-down version of bpf.h; it includes only * the stuff needed for the code generator and the userland BPF * interpreter, and the libpcap APIs for setting filters, etc.. * * "pcap-bpf.c" will include the native OS version, as it deals with * the OS's BPF implementation. * * XXX - should this all just be moved to "pcap.h"? */ #ifndef BPF_MAJOR_VERSION #ifdef __cplusplus extern "C" { #endif /* BSD style release date */ #define BPF_RELEASE 199606 #ifdef MSDOS /* must be 32-bit */ typedef long bpf_int32; typedef unsigned long bpf_u_int32; #else typedef int bpf_int32; typedef u_int bpf_u_int32; #endif /* * Alignment macros. BPF_WORDALIGN rounds up to the next * even multiple of BPF_ALIGNMENT. */ #ifndef __NetBSD__ #define BPF_ALIGNMENT sizeof( bpf_int32 ) #else #define BPF_ALIGNMENT sizeof( long ) #endif #define BPF_WORDALIGN( x ) ( ( ( x ) + ( BPF_ALIGNMENT - 1 ) ) & ~( BPF_ALIGNMENT - 1 ) ) #define BPF_MAXBUFSIZE 0x8000 #define BPF_MINBUFSIZE 32 /* * Structure for "pcap_compile()", "pcap_setfilter()", etc.. */ struct bpf_program { u_int bf_len; struct bpf_insn * bf_insns; }; /* * 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 /* * Data-link level type codes. * * Do *NOT* add new values to this list without asking * "tcpdump-workers@lists.tcpdump.org" for a value. Otherwise, you run * the risk of using a value that's already being used for some other * purpose, and of having tools that read libpcap-format captures not * being able to handle captures with your new DLT_ value, with no hope * that they will ever be changed to do so (as that would destroy their * ability to read captures using that value for that other purpose). */ /* * These are the types that are the same on all platforms, and that * have been defined by for ages. */ #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 /* 802.5 Token Ring */ #define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ #define DLT_SLIP 8 /* Serial Line IP */ #define DLT_PPP 9 /* Point-to-point Protocol */ #define DLT_FDDI 10 /* FDDI */ /* * These are types that are different on some platforms, and that * have been defined by for ages. We use #ifdefs to * detect the BSDs that define them differently from the traditional * libpcap * * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, * but I don't know what the right #define is for BSD/OS. */ #define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ #ifdef __OpenBSD__ #define DLT_RAW 14 /* raw IP */ #else #define DLT_RAW 12 /* raw IP */ #endif /* * Given that the only OS that currently generates BSD/OS SLIP or PPP * is, well, BSD/OS, arguably everybody should have chosen its values * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they * didn't. So it goes. */ #if defined( __NetBSD__ ) || defined( __FreeBSD__ ) #ifndef DLT_SLIP_BSDOS #define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ #define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ #endif #else #define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ #define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ #endif /* * 17 is used for DLT_OLD_PFLOG in OpenBSD; * OBSOLETE: DLT_PFLOG is 117 in OpenBSD now as well. See below. * 18 is used for DLT_PFSYNC in OpenBSD; don't use it for anything else. */ #define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ /* * Apparently Redback uses this for its SmartEdge 400/800. I hope * nobody else decided to use it, too. */ #define DLT_REDBACK_SMARTEDGE 32 /* * 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 types corresponding to DLT_ types that differ * between platforms; don't use those values for new DLT_ new types. */ /* * 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 */ /* * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, * except when it isn't. (I.e., sometimes it's just raw IP, and * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, * so that we don't have to worry about the link-layer header.) */ /* * 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. * * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so * we don't use 12 for it in OSes other than OpenBSD. */ #ifdef __OpenBSD__ #define DLT_LOOP 12 #else #define DLT_LOOP 108 #endif /* * 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. */ #ifdef __OpenBSD__ #define DLT_ENC 13 #else #define DLT_ENC 109 #endif /* * Values between 110 and 112 are reserved for use 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_ types * other than the corresponding DLT_ types. */ /* * 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 /* * 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. * * XXX: is there a conflict with DLT_PFSYNC 18 as well? */ #ifdef __OpenBSD__ #define DLT_OLD_PFLOG 17 #define DLT_PFSYNC 18 #endif #define DLT_PFLOG 117 /* * Registered for Cisco-internal use. */ #define DLT_CISCO_IOS 118 /* * 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. */ #define DLT_HHDLC 121 /* * This is for RFC 2625 IP-over-Fibre Channel. * * This is not for use with raw Fibre Channel, where the link-layer * header starts with a Fibre Channel frame header; it's for IP-over-FC, * where the link-layer header starts with an RFC 2625 Network_Header * field. */ #define DLT_IP_OVER_FC 122 /* * This is for Full Frontal ATM on Solaris with SunATM, with a * pseudo-header followed by an AALn PDU. * * There may be other forms of Full Frontal ATM on other OSes, * with different pseudo-headers. * * If ATM software returns a pseudo-header with VPI/VCI information * (and, ideally, packet type information, e.g. signalling, ILMI, * LANE, LLC-multiplexed traffic, etc.), it should not use * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump * and the like don't have to infer the presence or absence of a * pseudo-header and the form of the pseudo-header. */ #define DLT_SUNATM 123 /* Solaris+SunATM */ /* * Reserved as per request from Kent Dahlgren * for private use. */ #define DLT_RIO 124 /* RapidIO */ #define DLT_PCI_EXP 125 /* PCI Express */ #define DLT_AURORA 126 /* Xilinx Aurora link layer */ /* * Header for 802.11 plus a number of bits of link-layer information * including radio information, used by some recent BSD drivers as * well as the madwifi Atheros driver for Linux. */ #define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ /* * Reserved for the TZSP encapsulation, as per request from * Chris Waters * TZSP is a generic encapsulation for any other link type, * which includes a means to include meta-information * with the packet, e.g. signal strength and channel * for 802.11 packets. */ #define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ /* * BSD's ARCNET headers have the source host, destination host, * and type at the beginning of the packet; that's what's handed * up to userland via BPF. * * Linux's ARCNET headers, however, have a 2-byte offset field * between the host IDs and the type; that's what's handed up * to userland via PF_PACKET sockets. * * We therefore have to have separate DLT_ values for them. */ #define DLT_ARCNET_LINUX 129 /* ARCNET */ /* * Juniper-private data link types, as per request from * Hannes Gredler . The DLT_s are used * for passing on chassis-internal metainformation such as * QOS profiles, etc.. */ #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 * . 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 * 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 */ /* * DOCSIS MAC frames. */ #define DLT_DOCSIS 143 /* * Linux-IrDA packets. Protocol defined at http://www.irda.org. * Those packets include IrLAP headers and above (IrLMP...), but * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy * framing can be handled by the hardware and depend on the bitrate. * This is exactly the format you would get capturing on a Linux-IrDA * interface (irdaX), but not on a raw serial port. * Note the capture is done in "Linux-cooked" mode, so each packet include * a fake packet header (struct sll_header). This is because IrDA packet * decoding is dependant on the direction of the packet (incoming or * outgoing). * When/if other platform implement IrDA capture, we may revisit the * issue and define a real DLT_IRDA... * Jean II */ #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@lists.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 . 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 . * * 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 accommodate * 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 . 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 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 . The DLT_ is used * for internal communication to Physical Interface Cards (PIC) */ #define DLT_JUNIPER_PIC_PEER 174 /* * Link types requested by Gregor Maier 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 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 . * 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 . * 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 . * 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 . * 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 . */ #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 * . */ #define DLT_IEEE802_16_MAC_CPS 188 /* * USB packets, beginning with a Linux USB header; requested by * Paolo Abeni . */ #define DLT_USB_LINUX 189 /* * Controller Area Network (CAN) v. 2.0B packets. * DLT_ requested by Gianluca Varenni . * 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 . */ #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 . * 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 . */ #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 * . */ #define DLT_ERF 197 /* * Special header prepended to Ethernet packets when capturing from a * u10 Networks board. Requested by Phil Mulholland * . */ #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 * . */ #define DLT_IPMB 199 /* * Juniper-private data link type, as per request from * Hannes Gredler . * 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 . */ #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 . */ #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 . */ #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 * . */ #define DLT_IPMB_LINUX 209 /* * FlexRay automotive bus - http://www.flexray.com/ - as requested * by Hannes Kaelber . */ #define DLT_FLEXRAY 210 /* * Media Oriented Systems Transport (MOST) bus for multimedia * transport - http://www.mostcooperation.com/ - as requested * by Hannes Kaelber . */ #define DLT_MOST 211 /* * Local Interconnect Network (LIN) bus for vehicle networks - * http://www.lin-subbus.org/ - as requested by Hannes Kaelber * . */ #define DLT_LIN 212 /* * X2E-private data link type used for serial line capture, * as requested by Hannes Kaelber . */ #define DLT_X2E_SERIAL 213 /* * X2E-private data link type used for the Xoraya data logger * family, as requested by Hannes Kaelber . */ #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 . */ #define DLT_IEEE802_15_4_NONASK_PHY 215 /* * DLT and savefile link type values are split into a class and * a member of that class. A class value of 0 indicates a regular * DLT_/LINKTYPE_ value. */ #define DLT_CLASS( x ) ( ( x ) & 0x03ff0000 ) /* * NetBSD-specific generic "raw" link type. The class value indicates * that this is the generic raw type, and the lower 16 bits are the * address family we're dealing with. Those values are NetBSD-specific; * do not assume that they correspond to AF_ values for your operating * system. */ #define DLT_CLASS_NETBSD_RAWAF 0x02240000 #define DLT_NETBSD_RAWAF( af ) ( DLT_CLASS_NETBSD_RAWAF | ( af ) ) #define DLT_NETBSD_RAWAF_AF( x ) ( ( x ) & 0x0000ffff ) #define DLT_IS_NETBSD_RAWAF( x ) ( DLT_CLASS( x ) == DLT_CLASS_NETBSD_RAWAF ) /* * 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 } #if __STDC__ || defined( __cplusplus ) extern int bpf_validate( const struct bpf_insn *, int ); extern u_int bpf_filter( const struct bpf_insn *, const u_char *, u_int, u_int ); #else extern int bpf_validate(); extern u_int bpf_filter(); #endif /* * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). */ #define BPF_MEMWORDS 16 #ifdef __cplusplus } #endif #endif /* ifndef BPF_MAJOR_VERSION */