| /*- |
| * 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: src/sys/net/bpf.h,v 1.54.2.1.2.1 2009/10/25 01:10:29 kensmith Exp $ |
| */ |
| |
| #ifndef _BSD_NET_BPF_H_ |
| #define _BSD_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 |
| |
| /* |
| * Historically, BPF has supported a single buffering model, first using mbuf |
| * clusters in kernel, and later using malloc(9) buffers in kernel. We now |
| * support multiple buffering modes, which may be queried and set using |
| * BIOCGETBUFMODE and BIOCSETBUFMODE. So as to avoid handling the complexity |
| * of changing modes while sniffing packets, the mode becomes fixed once an |
| * interface has been attached to the BPF descriptor. |
| */ |
| #define BPF_BUFMODE_BUFFER 1 /* Kernel buffers with read(). */ |
| #define BPF_BUFMODE_ZBUF 2 /* Zero-copy buffers. */ |
| |
| /*- |
| * Struct used by BIOCSETZBUF, BIOCROTZBUF: describes up to two zero-copy |
| * buffer as used by BPF. |
| */ |
| struct bpf_zbuf { |
| void *bz_bufa; /* Location of 'a' zero-copy buffer. */ |
| void *bz_bufb; /* Location of 'b' zero-copy buffer. */ |
| size_t bz_buflen; /* Size of zero-copy buffers. */ |
| }; |
| |
| #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) |
| #define BIOCGETBUFMODE _IOR('B',125, u_int) |
| #define BIOCSETBUFMODE _IOW('B',126, u_int) |
| #define BIOCGETZMAX _IOR('B',127, size_t) |
| #define BIOCROTZBUF _IOR('B',128, struct bpf_zbuf) |
| #define BIOCSETZBUF _IOW('B',129, struct bpf_zbuf) |
| #define BIOCSETFNR _IOW('B',130, struct bpf_program) |
| |
| /* 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 _FREEBSD_KERNEL |
| #define SIZEOF_BPF_HDR (sizeof(struct bpf_hdr) <= 20 ? 18 : \ |
| sizeof(struct bpf_hdr)) |
| #endif |
| |
| /* |
| * When using zero-copy BPF buffers, a shared memory header is present |
| * allowing the kernel BPF implementation and user process to synchronize |
| * without using system calls. This structure defines that header. When |
| * accessing these fields, appropriate atomic operation and memory barriers |
| * are required in order not to see stale or out-of-order data; see bpf(4) |
| * for reference code to access these fields from userspace. |
| * |
| * The layout of this structure is critical, and must not be changed; if must |
| * fit in a single page on all architectures. |
| */ |
| struct bpf_zbuf_header { |
| volatile u_int bzh_kernel_gen; /* Kernel generation number. */ |
| volatile u_int bzh_kernel_len; /* Length of data in the buffer. */ |
| volatile u_int bzh_user_gen; /* User generation number. */ |
| u_int _bzh_pad[5]; |
| }; |
| |
| /* |
| * 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 |
| |
| /* |
| * 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 |
| |
| /* |
| * 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) |
| |
| /* |
| * 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 _FREEBSD_KERNEL |
| #ifdef MALLOC_DECLARE |
| MALLOC_DECLARE(M_BPF); |
| #endif |
| #ifdef SYSCTL_DECL |
| SYSCTL_DECL(_net_bpf); |
| #endif |
| |
| /* |
| * Rotate the packet buffers in descriptor d. Move the store buffer into the |
| * hold slot, and the free buffer ino the store slot. Zero the length of the |
| * new store buffer. Descriptor lock should be held. |
| */ |
| #define ROTATE_BUFFERS(d) do { \ |
| (d)->bd_hbuf = (d)->bd_sbuf; \ |
| (d)->bd_hlen = (d)->bd_slen; \ |
| (d)->bd_sbuf = (d)->bd_fbuf; \ |
| (d)->bd_slen = 0; \ |
| (d)->bd_fbuf = NULL; \ |
| bpf_bufheld(d); \ |
| } while (0) |
| |
| /* |
| * 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 */ |
| }; |
| |
| void bpf_bufheld(struct bpf_d *d); |
| 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 /* _BSD_NET_BPF_H_ */ |