diff options
Diffstat (limited to 'pcap/bpf.h')
| -rw-r--r-- | pcap/bpf.h | 1257 |
1 files changed, 24 insertions, 1233 deletions
diff --git a/pcap/bpf.h b/pcap/bpf.h index ff88fd0f4fa7..78ad8905d02d 100644 --- a/pcap/bpf.h +++ b/pcap/bpf.h @@ -4,7 +4,7 @@ * * 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 + * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence * Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without @@ -59,7 +59,8 @@ * or Tru64 UNIX-style multiple-include protection (or, at least, * Tru64 UNIX 5.x-style; I don't have earlier versions available to check), * or AIX-style multiple-include protection (or, at least, AIX 5.x-style; - * I don't have earlier versions available to check). + * I don't have earlier versions available to check), or QNX-style + * multiple-include protection (as per GitHub pull request #394). * * We do not check for BPF_MAJOR_VERSION, as that's defined by * <linux/filter.h>, which is directly or indirectly included in some @@ -68,9 +69,11 @@ * * This also provides our own multiple-include protection. */ -#if !defined(_NET_BPF_H_) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) +#if !defined(_NET_BPF_H_) && !defined(_NET_BPF_H_INCLUDED) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) #define lib_pcap_bpf_h +#include <pcap/export-defs.h> + #ifdef __cplusplus extern "C" { #endif @@ -87,7 +90,7 @@ typedef u_int bpf_u_int32; #endif /* - * Alignment macros. BPF_WORDALIGN rounds up to the next + * Alignment macros. BPF_WORDALIGN rounds up to the next * even multiple of BPF_ALIGNMENT. * * Tcpdump's print-pflog.c uses this, so we define it here. @@ -106,1232 +109,8 @@ struct bpf_program { u_int bf_len; struct bpf_insn *bf_insns; }; - -/* - * Link-layer header 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). - * - * See - * - * http://www.tcpdump.org/linktypes.html - * - * for detailed descriptions of some of these link-layer header types. - */ - -/* - * These are the types that are the same on all platforms, and that - * have been defined by <net/bpf.h> 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 <net/bpf.h> for ages. We use #ifdefs to - * detect the BSDs that define them differently from the traditional - * libpcap <net/bpf.h> - * - * 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 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. - */ -#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__) -#define DLT_PFSYNC 18 -#endif - -#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 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 */ - -/* - * 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. - */ -#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 - -/* - * Sigh. - * - * This was reserved for Siemens HiPath HDLC on 2002-01-25, as - * requested by Tomas Kukosa. - * - * On 2004-02-25, a FreeBSD checkin to sys/net/bpf.h was made that - * assigned 121 as DLT_PFSYNC. Its libpcap does DLT_ <-> LINKTYPE_ - * mapping, so it probably supports capturing on the pfsync device - * but not saving the captured data to a pcap file. - * - * OpenBSD, from which pf came, however, uses 18 for DLT_PFSYNC; - * their libpcap does no DLT_ <-> LINKTYPE_ mapping, so it would - * use 18 in pcap files as well. - * - * NetBSD and DragonFly BSD also use 18 for DLT_PFSYNC; their - * libpcaps do DLT_ <-> LINKTYPE_ mapping, and neither has an entry - * for DLT_PFSYNC, so it might not be able to write out dump files - * with 18 as the link-layer header type. (Earlier versions might - * not have done mapping, in which case they'd work the same way - * OpenBSD does.) - * - * Mac OS X defines it as 18, but doesn't appear to use it as of - * Mac OS X 10.7.3. Its libpcap does DLT_ <-> LINKTYPE_ mapping. - * - * We'll define DLT_PFSYNC as 121 on FreeBSD and define it as 18 on - * all other platforms. We'll define DLT_HHDLC as 121 on everything - * except for FreeBSD; anybody who wants to compile, on FreeBSD, code - * that uses DLT_HHDLC is out of luck. - * - * We'll define LINKTYPE_PFSYNC as 18, *even on FreeBSD*, and map - * it, so that savefiles won't use 121 for PFSYNC - they'll all - * use 18. Code that uses pcap_datalink() to determine the link-layer - * header type of a savefile won't, when built and run on FreeBSD, - * be able to distinguish between LINKTYPE_PFSYNC and LINKTYPE_HHDLC - * capture files; code that doesn't, such as the code in Wireshark, - * will be able to distinguish between them. - */ -#ifdef __FreeBSD__ -#define DLT_PFSYNC 121 -#else -#define DLT_HHDLC 121 -#endif - -/* - * 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 <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 */ - -/* - * 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 <chris.waters@networkchemistry.com> - * 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 <hannes@juniper.net>. 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 - * <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 */ - -/* - * 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 (incomming 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 <hannes@juniper.net>. The DLT_s are used - * for passing on chassis-internal metainformation such as - * QOS profiles, etc.. - */ -#define DLT_JUNIPER_MONITOR 164 - -/* - * BACnet MS/TP frames. - */ -#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>. - * For this one, we expect the FCS to be present at the end of the frame; - * if the frame has no FCS, DLT_IEEE802_15_4_NOFCS should be used. - */ -#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 - -/* - * 245 is used as LINKTYPE_PFSYNC; do not use it for any other purpose. - * - * DLT_PFSYNC has different values on different platforms, and all of - * them collide with something used elsewhere. On platforms that - * don't already define it, define it as 245. - */ -#if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__) && !defined(__APPLE__) -#define DLT_PFSYNC 246 -#endif - -/* - * Raw InfiniBand packets, starting with the Local Routing Header. - * - * Requested by Oren Kladnitsky <orenk@mellanox.com>. - */ -#define DLT_INFINIBAND 247 - -/* - * SCTP, with no lower-level protocols (i.e., no IPv4 or IPv6). - * - * Requested by Michael Tuexen <Michael.Tuexen@lurchi.franken.de>. - */ -#define DLT_SCTP 248 - -/* - * USB packets, beginning with a USBPcap header. - * - * Requested by Tomasz Mon <desowin@gmail.com> - */ -#define DLT_USBPCAP 249 - -/* - * Schweitzer Engineering Laboratories "RTAC" product serial-line - * packets. - * - * Requested by Chris Bontje <chris_bontje@selinc.com>. - */ -#define DLT_RTAC_SERIAL 250 - -/* - * Bluetooth Low Energy air interface link-layer packets. - * - * Requested by Mike Kershaw <dragorn@kismetwireless.net>. - */ -#define DLT_BLUETOOTH_LE_LL 251 - -/* - * DLT type for upper-protocol layer PDU saves from wireshark. - * - * the actual contents are determined by two TAGs stored with each - * packet: - * EXP_PDU_TAG_LINKTYPE the link type (LINKTYPE_ value) of the - * original packet. - * - * EXP_PDU_TAG_PROTO_NAME the name of the wireshark dissector - * that can make sense of the data stored. - */ -#define DLT_WIRESHARK_UPPER_PDU 252 - -/* - * DLT type for the netlink protocol (nlmon devices). - */ -#define DLT_NETLINK 253 - -/* - * Bluetooth Linux Monitor headers for the BlueZ stack. - */ -#define DLT_BLUETOOTH_LINUX_MONITOR 254 - -/* - * Bluetooth Basic Rate/Enhanced Data Rate baseband packets, as - * captured by Ubertooth. - */ -#define DLT_BLUETOOTH_BREDR_BB 255 - -/* - * Bluetooth Low Energy link layer packets, as captured by Ubertooth. - */ -#define DLT_BLUETOOTH_LE_LL_WITH_PHDR 256 - -/* - * PROFIBUS data link layer. - */ -#define DLT_PROFIBUS_DL 257 - -/* - * Apple's DLT_PKTAP headers. - * - * Sadly, the folks at Apple either had no clue that the DLT_USERn values - * are for internal use within an organization and partners only, and - * didn't know that the right way to get a link-layer header type is to - * ask tcpdump.org for one, or knew and didn't care, so they just - * used DLT_USER2, which causes problems for everything except for - * their version of tcpdump. - * - * So I'll just give them one; hopefully this will show up in a - * libpcap release in time for them to get this into 10.10 Big Sur - * or whatever Mavericks' successor is called. LINKTYPE_PKTAP - * will be 258 *even on OS X*; that is *intentional*, so that - * PKTAP files look the same on *all* OSes (different OSes can have - * different numerical values for a given DLT_, but *MUST NOT* have - * different values for what goes in a file, as files can be moved - * between OSes!). - * - * When capturing, on a system with a Darwin-based OS, on a device - * that returns 149 (DLT_USER2 and Apple's DLT_PKTAP) with this - * version of libpcap, the DLT_ value for the pcap_t will be DLT_PKTAP, - * and that will continue to be DLT_USER2 on Darwin-based OSes. That way, - * binary compatibility with Mavericks is preserved for programs using - * this version of libpcap. This does mean that if you were using - * DLT_USER2 for some capture device on OS X, you can't do so with - * this version of libpcap, just as you can't with Apple's libpcap - - * on OS X, they define DLT_PKTAP to be DLT_USER2, so programs won't - * be able to distinguish between PKTAP and whatever you were using - * DLT_USER2 for. - * - * If the program saves the capture to a file using this version of - * libpcap's pcap_dump code, the LINKTYPE_ value in the file will be - * LINKTYPE_PKTAP, which will be 258, even on Darwin-based OSes. - * That way, the file will *not* be a DLT_USER2 file. That means - * that the latest version of tcpdump, when built with this version - * of libpcap, and sufficiently recent versions of Wireshark will - * be able to read those files and interpret them correctly; however, - * Apple's version of tcpdump in OS X 10.9 won't be able to handle - * them. (Hopefully, Apple will pick up this version of libpcap, - * and the corresponding version of tcpdump, so that tcpdump will - * be able to handle the old LINKTYPE_USER2 captures *and* the new - * LINKTYPE_PKTAP captures.) - */ -#ifdef __APPLE__ -#define DLT_PKTAP DLT_USER2 -#else -#define DLT_PKTAP 258 -#endif - -/* - * Ethernet packets preceded by a header giving the last 6 octets - * of the preamble specified by 802.3-2012 Clause 65, section - * 65.1.3.2 "Transmit". - */ -#define DLT_EPON 259 - -/* - * IPMI trace packets, as specified by Table 3-20 "Trace Data Block Format" - * in the PICMG HPM.2 specification. - */ -#define DLT_IPMI_HPM_2 260 - -#define DLT_MATCHING_MAX 260 /* highest value in the "matching" range */ - -/* - * 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) +#include <pcap/dlt.h> /* * The instruction encodings. @@ -1464,17 +243,29 @@ struct bpf_insn { }; /* + * Auxiliary data, for use when interpreting a filter intended for the + * Linux kernel when the kernel rejects the filter (requiring us to + * run it in userland). It contains VLAN tag information. + */ +struct bpf_aux_data { + u_short vlan_tag_present; + u_short vlan_tag; +}; + +/* * 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); +PCAP_API int bpf_validate(const struct bpf_insn *, int); +PCAP_API u_int bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int); +extern u_int bpf_filter_with_aux_data(const struct bpf_insn *, const u_char *, u_int, u_int, const struct bpf_aux_data *); #else -extern int bpf_validate(); -extern u_int bpf_filter(); +PCAP_API int bpf_validate(); +PCAP_API u_int bpf_filter(); +extern u_int bpf_filter_with_aux_data(); #endif /* |