*
* 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
* 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 1.3 2003-03-08 08:42:14 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
-
-typedef int bpf_int32;
-typedef u_int bpf_u_int32;
-
-/*
- * 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_MAXINSNS 512
-#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.
- */
-
-/*
- * These are the types that are the same on all platforms; on other
- * platforms, a <net/bpf.h> should be supplied that defines the additional
- * DLT_* codes appropriately for that platform (the BSDs, for example,
- * should not just pick up this version of "bpf.h"; they should also define
- * the additional DLT_* codes used by their kernels, as well as the values
- * defined here - and, if the values they use for particular DLT_ types
- * differ from those here, they should use their values, not the ones
- * here).
- */
-#define DLT_NULL 0 /* no link-layer encapsulation */
-#define DLT_EN10MB 1 /* Ethernet (10Mb) */
-#define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */
-#define DLT_AX25 3 /* Amateur Radio AX.25 */
-#define DLT_PRONET 4 /* Proteon ProNET Token Ring */
-#define DLT_CHAOS 5 /* Chaos */
-#define DLT_IEEE802 6 /* IEEE 802 Networks */
-#define DLT_ARCNET 7 /* ARCNET, 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 values from the traditional libpcap "bpf.h".
- * Ports of this to particular platforms should replace these definitions
- * with the ones appropriate to that platform, if the values are
- * different on that platform.
- */
-#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.
*/
-#ifdef __NetBSD__
-#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
-
-#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 */
-
-/*
- * 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.
+ * For backwards compatibility.
*
- * 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.
+ * Note to OS vendors: do NOT get rid of this file! Some applications
+ * might expect to be able to include <pcap-bpf.h>.
*/
-#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.
- *
- * 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
-
-/*
- * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
- * DLT_SLIP_BSDOS in NetBSD, so we can't use 13 for it in capture-file
- * headers.
- */
-#define DLT_ENC 109
-
-/*
- * 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
-
-/*
- * 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 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 */
-
-/*
- * for private use.
- */
-#define DLT_RIO 124 /* RapidIO */
-#define DLT_PCI_EXP 125 /* PCI Express */
-#define DLT_AURORA 126 /* Xilinx Aurora link layer */
-
-/*
- * For future use with 802.11 captures - defined by AbsoluteValue
- * Systems to store a number of bits of link-layer information:
- *
- * http://www.shaftnet.org/~pizza/software/capturefrm.txt
- *
- * but could and arguably should also be used by non-AVS Linux
- * 802.11 drivers and BSD drivers; that may happen in the future.
- */
-#define DLT_IEEE802_11_RADIO 127 /* 802.11 plus WLAN header */
-
-/*
- * Reserved for the TZSP encapsulation, as per request from
- * 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
- * for passing on chassis-internal metainformation like
- * 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
-
-/*
- * 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_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(struct bpf_insn *, int);
-extern u_int bpf_filter(struct bpf_insn *, 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
+#include <pcap/bpf.h>
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