170658Sobrien/* 270658Sobrien * Fundamental constants relating to ethernet. 3313538Sngie * 485595Sobrien */ 570658Sobrien 670658Sobrien#ifndef _NET_ETHERNET_H_ 7200038Skib#define _NET_ETHERNET_H_ 8313538Sngie 9313538Sngie#include <sys/types.h> 1070658Sobrien 11288074Sbdrewery/* 12288074Sbdrewery * Some basic Ethernet constants. 13288074Sbdrewery */ 14288074Sbdrewery#define ETHER_ADDR_LEN 6 /* length of an Ethernet address */ 15288074Sbdrewery#define ETHER_TYPE_LEN 2 /* length of the Ethernet type field */ 16288076Sbdrewery#define ETHER_CRC_LEN 4 /* length of the Ethernet CRC */ 17288076Sbdrewery#define ETHER_HDR_LEN (ETHER_ADDR_LEN*2+ETHER_TYPE_LEN) 1870658Sobrien#define ETHER_MIN_LEN 64 /* minimum frame len, including CRC */ 1996530Sru#define ETHER_MAX_LEN 1518 /* maximum frame len, including CRC */ 20217375Sdim#define ETHER_MAX_LEN_JUMBO 9018 /* max jumbo frame len, including CRC */ 2196530Sru 22217375Sdim#define ETHER_VLAN_ENCAP_LEN 4 /* len of 802.1Q VLAN encapsulation */ 23217375Sdim/* 2470658Sobrien * Mbuf adjust factor to force 32-bit alignment of IP header. 25217375Sdim * Drivers should do m_adj(m, ETHER_ALIGN) when setting up a 26217375Sdim * receive so the upper layers get the IP header properly aligned 27232832Skib * past the 14-byte Ethernet header. 28200038Skib */ 29217375Sdim#define ETHER_ALIGN 2 /* driver adjust for IP hdr alignment */ 30234502Sdim 31217375Sdim/* 32217375Sdim * Compute the maximum frame size based on ethertype (i.e. possible 33217375Sdim * encapsulation) and whether or not an FCS is present. 34232832Skib */ 35217375Sdim#define ETHER_MAX_FRAME(ifp, etype, hasfcs) \ 36217375Sdim (if_getmtu(ifp) + ETHER_HDR_LEN + \ 37234502Sdim ((hasfcs) ? ETHER_CRC_LEN : 0) + \ 38217375Sdim (((etype) == ETHERTYPE_VLAN) ? ETHER_VLAN_ENCAP_LEN : 0)) 39217375Sdim 40217375Sdim/* 41232832Skib * Ethernet-specific mbuf flags. 42217375Sdim */ 43217375Sdim#define M_HASFCS M_PROTO5 /* FCS included at end of frame */ 44234502Sdim#define M_BRIDGE_INJECT M_PROTO6 /* if_bridge-injected frame */ 45217375Sdim 4670658Sobrien/* 47 * Ethernet CRC32 polynomials (big- and little-endian versions). 48 */ 49#define ETHER_CRC_POLY_LE 0xedb88320 50#define ETHER_CRC_POLY_BE 0x04c11db6 51 52/* 53 * A macro to validate a length with 54 */ 55#define ETHER_IS_VALID_LEN(foo) \ 56 ((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN) 57 58/* 59 * Structure of a 10Mb/s Ethernet header. 60 */ 61struct ether_header { 62 u_char ether_dhost[ETHER_ADDR_LEN]; 63 u_char ether_shost[ETHER_ADDR_LEN]; 64 u_short ether_type; 65} __packed; 66 67/* 68 * Structure of a 48-bit Ethernet address. 69 */ 70struct ether_addr { 71 u_char octet[ETHER_ADDR_LEN]; 72} __packed; 73 74#define ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */ 75#define ETHER_IS_IPV6_MULTICAST(addr) \ 76 (((addr)[0] == 0x33) && ((addr)[1] == 0x33)) 77#define ETHER_IS_BROADCAST(addr) \ 78 (((addr)[0] & (addr)[1] & (addr)[2] & \ 79 (addr)[3] & (addr)[4] & (addr)[5]) == 0xff) 80#define ETHER_IS_ZERO(addr) \ 81 (((addr)[0] | (addr)[1] | (addr)[2] | \ 82 (addr)[3] | (addr)[4] | (addr)[5]) == 0x00) 83 84/* 85 * 802.1q Virtual LAN header. 86 */ 87struct ether_vlan_header { 88 uint8_t evl_dhost[ETHER_ADDR_LEN]; 89 uint8_t evl_shost[ETHER_ADDR_LEN]; 90 uint16_t evl_encap_proto; 91 uint16_t evl_tag; 92 uint16_t evl_proto; 93} __packed; 94 95#define EVL_VLID_MASK 0x0FFF 96#define EVL_PRI_MASK 0xE000 97#define EVL_VLANOFTAG(tag) ((tag) & EVL_VLID_MASK) 98#define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7) 99#define EVL_CFIOFTAG(tag) (((tag) >> 12) & 1) 100#define EVL_MAKETAG(vlid, pri, cfi) \ 101 ((((((pri) & 7) << 1) | ((cfi) & 1)) << 12) | ((vlid) & EVL_VLID_MASK)) 102 103/* 104 * Ethernet protocol types. 105 * 106 * A public list is available from the IEEE Registration Authority: 107 * https://standards.ieee.org/products-services/regauth/ 108 * 109 * NOTE: 0x0000-0x05DC (0..1500) are generally IEEE 802.3 length fields. 110 * However, there are some conflicts. 111 */ 112 113#define ETHERTYPE_8023 0x0004 /* IEEE 802.3 packet */ 114 /* 0x0101 .. 0x1FF Experimental */ 115#define ETHERTYPE_PUP 0x0200 /* Xerox PUP protocol - see 0A00 */ 116#define ETHERTYPE_PUPAT 0x0200 /* PUP Address Translation - see 0A01 */ 117#define ETHERTYPE_SPRITE 0x0500 /* ??? */ 118 /* 0x0400 Nixdorf */ 119#define ETHERTYPE_NS 0x0600 /* XNS */ 120#define ETHERTYPE_NSAT 0x0601 /* XNS Address Translation (3Mb only) */ 121#define ETHERTYPE_DLOG1 0x0660 /* DLOG (?) */ 122#define ETHERTYPE_DLOG2 0x0661 /* DLOG (?) */ 123#define ETHERTYPE_IP 0x0800 /* IP protocol */ 124#define ETHERTYPE_X75 0x0801 /* X.75 Internet */ 125#define ETHERTYPE_NBS 0x0802 /* NBS Internet */ 126#define ETHERTYPE_ECMA 0x0803 /* ECMA Internet */ 127#define ETHERTYPE_CHAOS 0x0804 /* CHAOSnet */ 128#define ETHERTYPE_X25 0x0805 /* X.25 Level 3 */ 129#define ETHERTYPE_ARP 0x0806 /* Address resolution protocol */ 130#define ETHERTYPE_NSCOMPAT 0x0807 /* XNS Compatibility */ 131#define ETHERTYPE_FRARP 0x0808 /* Frame Relay ARP (RFC1701) */ 132 /* 0x081C Symbolics Private */ 133 /* 0x0888 - 0x088A Xyplex */ 134#define ETHERTYPE_UBDEBUG 0x0900 /* Ungermann-Bass network debugger */ 135#define ETHERTYPE_IEEEPUP 0x0A00 /* Xerox IEEE802.3 PUP */ 136#define ETHERTYPE_IEEEPUPAT 0x0A01 /* Xerox IEEE802.3 PUP Address Translation */ 137#define ETHERTYPE_VINES 0x0BAD /* Banyan VINES */ 138#define ETHERTYPE_VINESLOOP 0x0BAE /* Banyan VINES Loopback */ 139#define ETHERTYPE_VINESECHO 0x0BAF /* Banyan VINES Echo */ 140 141/* 0x1000 - 0x100F Berkeley Trailer */ 142/* 143 * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have 144 * (type-ETHERTYPE_TRAIL)*512 bytes of data followed 145 * by an ETHER type (as given above) and then the (variable-length) header. 146 */ 147#define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */ 148#define ETHERTYPE_NTRAILER 16 149 150#define ETHERTYPE_DCA 0x1234 /* DCA - Multicast */ 151#define ETHERTYPE_VALID 0x1600 /* VALID system protocol */ 152#define ETHERTYPE_DOGFIGHT 0x1989 /* Artificial Horizons ("Aviator" dogfight simulator [on Sun]) */ 153#define ETHERTYPE_RCL 0x1995 /* Datapoint Corporation (RCL lan protocol) */ 154 155 /* The following 3C0x types 156 are unregistered: */ 157#define ETHERTYPE_NBPVCD 0x3C00 /* 3Com NBP virtual circuit datagram (like XNS SPP) not registered */ 158#define ETHERTYPE_NBPSCD 0x3C01 /* 3Com NBP System control datagram not registered */ 159#define ETHERTYPE_NBPCREQ 0x3C02 /* 3Com NBP Connect request (virtual cct) not registered */ 160#define ETHERTYPE_NBPCRSP 0x3C03 /* 3Com NBP Connect response not registered */ 161#define ETHERTYPE_NBPCC 0x3C04 /* 3Com NBP Connect complete not registered */ 162#define ETHERTYPE_NBPCLREQ 0x3C05 /* 3Com NBP Close request (virtual cct) not registered */ 163#define ETHERTYPE_NBPCLRSP 0x3C06 /* 3Com NBP Close response not registered */ 164#define ETHERTYPE_NBPDG 0x3C07 /* 3Com NBP Datagram (like XNS IDP) not registered */ 165#define ETHERTYPE_NBPDGB 0x3C08 /* 3Com NBP Datagram broadcast not registered */ 166#define ETHERTYPE_NBPCLAIM 0x3C09 /* 3Com NBP Claim NetBIOS name not registered */ 167#define ETHERTYPE_NBPDLTE 0x3C0A /* 3Com NBP Delete NetBIOS name not registered */ 168#define ETHERTYPE_NBPRAS 0x3C0B /* 3Com NBP Remote adaptor status request not registered */ 169#define ETHERTYPE_NBPRAR 0x3C0C /* 3Com NBP Remote adaptor response not registered */ 170#define ETHERTYPE_NBPRST 0x3C0D /* 3Com NBP Reset not registered */ 171 172#define ETHERTYPE_PCS 0x4242 /* PCS Basic Block Protocol */ 173#define ETHERTYPE_IMLBLDIAG 0x424C /* Information Modes Little Big LAN diagnostic */ 174#define ETHERTYPE_DIDDLE 0x4321 /* THD - Diddle */ 175#define ETHERTYPE_IMLBL 0x4C42 /* Information Modes Little Big LAN */ 176#define ETHERTYPE_SIMNET 0x5208 /* BBN Simnet Private */ 177#define ETHERTYPE_DECEXPER 0x6000 /* DEC Unassigned, experimental */ 178#define ETHERTYPE_MOPDL 0x6001 /* DEC MOP dump/load */ 179#define ETHERTYPE_MOPRC 0x6002 /* DEC MOP remote console */ 180#define ETHERTYPE_DECnet 0x6003 /* DEC DECNET Phase IV route */ 181#define ETHERTYPE_DN ETHERTYPE_DECnet /* libpcap, tcpdump */ 182#define ETHERTYPE_LAT 0x6004 /* DEC LAT */ 183#define ETHERTYPE_DECDIAG 0x6005 /* DEC diagnostic protocol (at interface initialization?) */ 184#define ETHERTYPE_DECCUST 0x6006 /* DEC customer protocol */ 185#define ETHERTYPE_SCA 0x6007 /* DEC LAVC, SCA */ 186#define ETHERTYPE_AMBER 0x6008 /* DEC AMBER */ 187#define ETHERTYPE_DECMUMPS 0x6009 /* DEC MUMPS */ 188 /* 0x6010 - 0x6014 3Com Corporation */ 189#define ETHERTYPE_TRANSETHER 0x6558 /* Trans Ether Bridging (RFC1701)*/ 190#define ETHERTYPE_RAWFR 0x6559 /* Raw Frame Relay (RFC1701) */ 191#define ETHERTYPE_UBDL 0x7000 /* Ungermann-Bass download */ 192#define ETHERTYPE_UBNIU 0x7001 /* Ungermann-Bass NIUs */ 193#define ETHERTYPE_UBDIAGLOOP 0x7002 /* Ungermann-Bass diagnostic/loopback */ 194#define ETHERTYPE_UBNMC 0x7003 /* Ungermann-Bass ??? (NMC to/from UB Bridge) */ 195#define ETHERTYPE_UBBST 0x7005 /* Ungermann-Bass Bridge Spanning Tree */ 196#define ETHERTYPE_OS9 0x7007 /* OS/9 Microware */ 197#define ETHERTYPE_OS9NET 0x7009 /* OS/9 Net? */ 198 /* 0x7020 - 0x7029 LRT (England) (now Sintrom) */ 199#define ETHERTYPE_RACAL 0x7030 /* Racal-Interlan */ 200#define ETHERTYPE_PRIMENTS 0x7031 /* Prime NTS (Network Terminal Service) */ 201#define ETHERTYPE_CABLETRON 0x7034 /* Cabletron */ 202#define ETHERTYPE_CRONUSVLN 0x8003 /* Cronus VLN */ 203#define ETHERTYPE_CRONUS 0x8004 /* Cronus Direct */ 204#define ETHERTYPE_HP 0x8005 /* HP Probe */ 205#define ETHERTYPE_NESTAR 0x8006 /* Nestar */ 206#define ETHERTYPE_ATTSTANFORD 0x8008 /* AT&T/Stanford (local use) */ 207#define ETHERTYPE_EXCELAN 0x8010 /* Excelan */ 208#define ETHERTYPE_SG_DIAG 0x8013 /* SGI diagnostic type */ 209#define ETHERTYPE_SG_NETGAMES 0x8014 /* SGI network games */ 210#define ETHERTYPE_SG_RESV 0x8015 /* SGI reserved type */ 211#define ETHERTYPE_SG_BOUNCE 0x8016 /* SGI bounce server */ 212#define ETHERTYPE_APOLLODOMAIN 0x8019 /* Apollo DOMAIN */ 213#define ETHERTYPE_TYMSHARE 0x802E /* Tymeshare */ 214#define ETHERTYPE_TIGAN 0x802F /* Tigan, Inc. */ 215#define ETHERTYPE_REVARP 0x8035 /* Reverse addr resolution protocol */ 216#define ETHERTYPE_AEONIC 0x8036 /* Aeonic Systems */ 217#define ETHERTYPE_IPXNEW 0x8037 /* IPX (Novell Netware?) */ 218#define ETHERTYPE_LANBRIDGE 0x8038 /* DEC LANBridge */ 219#define ETHERTYPE_DSMD 0x8039 /* DEC DSM/DDP */ 220#define ETHERTYPE_ARGONAUT 0x803A /* DEC Argonaut Console */ 221#define ETHERTYPE_VAXELN 0x803B /* DEC VAXELN */ 222#define ETHERTYPE_DECDNS 0x803C /* DEC DNS Naming Service */ 223#define ETHERTYPE_ENCRYPT 0x803D /* DEC Ethernet Encryption */ 224#define ETHERTYPE_DECDTS 0x803E /* DEC Distributed Time Service */ 225#define ETHERTYPE_DECLTM 0x803F /* DEC LAN Traffic Monitor */ 226#define ETHERTYPE_DECNETBIOS 0x8040 /* DEC PATHWORKS DECnet NETBIOS Emulation */ 227#define ETHERTYPE_DECLAST 0x8041 /* DEC Local Area System Transport */ 228 /* 0x8042 DEC Unassigned */ 229#define ETHERTYPE_PLANNING 0x8044 /* Planning Research Corp. */ 230 /* 0x8046 - 0x8047 AT&T */ 231#define ETHERTYPE_DECAM 0x8048 /* DEC Availability Manager for Distributed Systems DECamds (but someone at DEC says not) */ 232#define ETHERTYPE_EXPERDATA 0x8049 /* ExperData */ 233#define ETHERTYPE_VEXP 0x805B /* Stanford V Kernel exp. */ 234#define ETHERTYPE_VPROD 0x805C /* Stanford V Kernel prod. */ 235#define ETHERTYPE_ES 0x805D /* Evans & Sutherland */ 236#define ETHERTYPE_LITTLE 0x8060 /* Little Machines */ 237#define ETHERTYPE_COUNTERPOINT 0x8062 /* Counterpoint Computers */ 238 /* 0x8065 - 0x8066 Univ. of Mass @ Amherst */ 239#define ETHERTYPE_VEECO 0x8067 /* Veeco Integrated Auto. */ 240#define ETHERTYPE_GENDYN 0x8068 /* General Dynamics */ 241#define ETHERTYPE_ATT 0x8069 /* AT&T */ 242#define ETHERTYPE_AUTOPHON 0x806A /* Autophon */ 243#define ETHERTYPE_COMDESIGN 0x806C /* ComDesign */ 244#define ETHERTYPE_COMPUGRAPHIC 0x806D /* Compugraphic Corporation */ 245 /* 0x806E - 0x8077 Landmark Graphics Corp. */ 246#define ETHERTYPE_MATRA 0x807A /* Matra */ 247#define ETHERTYPE_DDE 0x807B /* Dansk Data Elektronik */ 248#define ETHERTYPE_MERIT 0x807C /* Merit Internodal (or Univ of Michigan?) */ 249 /* 0x807D - 0x807F Vitalink Communications */ 250#define ETHERTYPE_VLTLMAN 0x8080 /* Vitalink TransLAN III Management */ 251 /* 0x8081 - 0x8083 Counterpoint Computers */ 252 /* 0x8088 - 0x808A Xyplex */ 253#define ETHERTYPE_ATALK 0x809B /* AppleTalk */ 254#define ETHERTYPE_AT ETHERTYPE_ATALK /* old NetBSD */ 255#define ETHERTYPE_APPLETALK ETHERTYPE_ATALK /* HP-UX */ 256 /* 0x809C - 0x809E Datability */ 257#define ETHERTYPE_SPIDER 0x809F /* Spider Systems Ltd. */ 258 /* 0x80A3 Nixdorf */ 259 /* 0x80A4 - 0x80B3 Siemens Gammasonics Inc. */ 260 /* 0x80C0 - 0x80C3 DCA (Digital Comm. Assoc.) Data Exchange Cluster */ 261 /* 0x80C4 - 0x80C5 Banyan Systems */ 262#define ETHERTYPE_PACER 0x80C6 /* Pacer Software */ 263#define ETHERTYPE_APPLITEK 0x80C7 /* Applitek Corporation */ 264 /* 0x80C8 - 0x80CC Intergraph Corporation */ 265 /* 0x80CD - 0x80CE Harris Corporation */ 266 /* 0x80CF - 0x80D2 Taylor Instrument */ 267 /* 0x80D3 - 0x80D4 Rosemount Corporation */ 268#define ETHERTYPE_SNA 0x80D5 /* IBM SNA Services over Ethernet */ 269#define ETHERTYPE_VARIAN 0x80DD /* Varian Associates */ 270 /* 0x80DE - 0x80DF TRFS (Integrated Solutions Transparent Remote File System) */ 271 /* 0x80E0 - 0x80E3 Allen-Bradley */ 272 /* 0x80E4 - 0x80F0 Datability */ 273#define ETHERTYPE_RETIX 0x80F2 /* Retix */ 274#define ETHERTYPE_AARP 0x80F3 /* AppleTalk AARP */ 275 /* 0x80F4 - 0x80F5 Kinetics */ 276#define ETHERTYPE_APOLLO 0x80F7 /* Apollo Computer */ 277#define ETHERTYPE_VLAN 0x8100 /* IEEE 802.1Q VLAN tagging (XXX conflicts) */ 278 /* 0x80FF - 0x8101 Wellfleet Communications (XXX conflicts) */ 279#define ETHERTYPE_BOFL 0x8102 /* Wellfleet; BOFL (Breath OF Life) pkts [every 5-10 secs.] */ 280#define ETHERTYPE_WELLFLEET 0x8103 /* Wellfleet Communications */ 281 /* 0x8107 - 0x8109 Symbolics Private */ 282#define ETHERTYPE_TALARIS 0x812B /* Talaris */ 283#define ETHERTYPE_WATERLOO 0x8130 /* Waterloo Microsystems Inc. (XXX which?) */ 284#define ETHERTYPE_HAYES 0x8130 /* Hayes Microcomputers (XXX which?) */ 285#define ETHERTYPE_VGLAB 0x8131 /* VG Laboratory Systems */ 286 /* 0x8132 - 0x8137 Bridge Communications */ 287#define ETHERTYPE_IPX 0x8137 /* Novell (old) NetWare IPX (ECONFIG E option) */ 288#define ETHERTYPE_NOVELL 0x8138 /* Novell, Inc. */ 289 /* 0x8139 - 0x813D KTI */ 290#define ETHERTYPE_MUMPS 0x813F /* M/MUMPS data sharing */ 291#define ETHERTYPE_AMOEBA 0x8145 /* Vrije Universiteit (NL) Amoeba 4 RPC (obsolete) */ 292#define ETHERTYPE_FLIP 0x8146 /* Vrije Universiteit (NL) FLIP (Fast Local Internet Protocol) */ 293#define ETHERTYPE_VURESERVED 0x8147 /* Vrije Universiteit (NL) [reserved] */ 294#define ETHERTYPE_LOGICRAFT 0x8148 /* Logicraft */ 295#define ETHERTYPE_NCD 0x8149 /* Network Computing Devices */ 296#define ETHERTYPE_ALPHA 0x814A /* Alpha Micro */ 297#define ETHERTYPE_SNMP 0x814C /* SNMP over Ethernet (see RFC1089) */ 298 /* 0x814D - 0x814E BIIN */ 299#define ETHERTYPE_TEC 0x814F /* Technically Elite Concepts */ 300#define ETHERTYPE_RATIONAL 0x8150 /* Rational Corp */ 301 /* 0x8151 - 0x8153 Qualcomm */ 302 /* 0x815C - 0x815E Computer Protocol Pty Ltd */ 303 /* 0x8164 - 0x8166 Charles River Data Systems */ 304#define ETHERTYPE_XTP 0x817D /* Protocol Engines XTP */ 305#define ETHERTYPE_SGITW 0x817E /* SGI/Time Warner prop. */ 306#define ETHERTYPE_HIPPI_FP 0x8180 /* HIPPI-FP encapsulation */ 307#define ETHERTYPE_STP 0x8181 /* Scheduled Transfer STP, HIPPI-ST */ 308 /* 0x8182 - 0x8183 Reserved for HIPPI-6400 */ 309 /* 0x8184 - 0x818C SGI prop. */ 310#define ETHERTYPE_MOTOROLA 0x818D /* Motorola */ 311#define ETHERTYPE_NETBEUI 0x8191 /* PowerLAN NetBIOS/NetBEUI (PC) */ 312 /* 0x819A - 0x81A3 RAD Network Devices */ 313 /* 0x81B7 - 0x81B9 Xyplex */ 314 /* 0x81CC - 0x81D5 Apricot Computers */ 315 /* 0x81D6 - 0x81DD Artisoft Lantastic */ 316 /* 0x81E6 - 0x81EF Polygon */ 317 /* 0x81F0 - 0x81F2 Comsat Labs */ 318 /* 0x81F3 - 0x81F5 SAIC */ 319 /* 0x81F6 - 0x81F8 VG Analytical */ 320 /* 0x8203 - 0x8205 QNX Software Systems Ltd. */ 321 /* 0x8221 - 0x8222 Ascom Banking Systems */ 322 /* 0x823E - 0x8240 Advanced Encryption Systems */ 323 /* 0x8263 - 0x826A Charles River Data Systems */ 324 /* 0x827F - 0x8282 Athena Programming */ 325 /* 0x829A - 0x829B Inst Ind Info Tech */ 326 /* 0x829C - 0x82AB Taurus Controls */ 327 /* 0x82AC - 0x8693 Walker Richer & Quinn */ 328#define ETHERTYPE_ACCTON 0x8390 /* Accton Technologies (unregistered) */ 329#define ETHERTYPE_TALARISMC 0x852B /* Talaris multicast */ 330#define ETHERTYPE_KALPANA 0x8582 /* Kalpana */ 331 /* 0x8694 - 0x869D Idea Courier */ 332 /* 0x869E - 0x86A1 Computer Network Tech */ 333 /* 0x86A3 - 0x86AC Gateway Communications */ 334#define ETHERTYPE_SECTRA 0x86DB /* SECTRA */ 335#define ETHERTYPE_IPV6 0x86DD /* IP protocol version 6 */ 336#define ETHERTYPE_DELTACON 0x86DE /* Delta Controls */ 337#define ETHERTYPE_ATOMIC 0x86DF /* ATOMIC */ 338 /* 0x86E0 - 0x86EF Landis & Gyr Powers */ 339 /* 0x8700 - 0x8710 Motorola */ 340#define ETHERTYPE_RDP 0x8739 /* Control Technology Inc. RDP Without IP */ 341#define ETHERTYPE_MICP 0x873A /* Control Technology Inc. Mcast Industrial Ctrl Proto. */ 342 /* 0x873B - 0x873C Control Technology Inc. Proprietary */ 343#define ETHERTYPE_TCPCOMP 0x876B /* TCP/IP Compression (RFC1701) */ 344#define ETHERTYPE_IPAS 0x876C /* IP Autonomous Systems (RFC1701) */ 345#define ETHERTYPE_SECUREDATA 0x876D /* Secure Data (RFC1701) */ 346#define ETHERTYPE_FLOWCONTROL 0x8808 /* 802.3x flow control packet */ 347#define ETHERTYPE_SLOW 0x8809 /* 802.3ad link aggregation (LACP) */ 348#define ETHERTYPE_PPP 0x880B /* PPP (obsolete by PPPoE) */ 349#define ETHERTYPE_HITACHI 0x8820 /* Hitachi Cable (Optoelectronic Systems Laboratory) */ 350#define ETHERTYPE_TEST 0x8822 /* Network Conformance Testing */ 351#define ETHERTYPE_MPLS 0x8847 /* MPLS Unicast */ 352#define ETHERTYPE_MPLS_MCAST 0x8848 /* MPLS Multicast */ 353#define ETHERTYPE_AXIS 0x8856 /* Axis Communications AB proprietary bootstrap/config */ 354#define ETHERTYPE_PPPOEDISC 0x8863 /* PPP Over Ethernet Discovery Stage */ 355#define ETHERTYPE_PPPOE 0x8864 /* PPP Over Ethernet Session Stage */ 356#define ETHERTYPE_LANPROBE 0x8888 /* HP LanProbe test? */ 357#define ETHERTYPE_PAE 0x888E /* EAPOL PAE/802.1x */ 358#define ETHERTYPE_PROFINET 0x8892 /* PROFINET RT Protocol */ 359#define ETHERTYPE_AOE 0x88A2 /* ATA Protocol */ 360#define ETHERTYPE_ETHERCAT 0x88A4 /* EtherCat Protocol */ 361#define ETHERTYPE_QINQ 0x88A8 /* 802.1ad VLAN stacking */ 362#define ETHERTYPE_POWERLINK 0x88AB /* Ethernet Powerlink (EPL) */ 363#define ETHERTYPE_LLDP 0x88CC /* Link Layer Discovery Protocol */ 364#define ETHERTYPE_SERCOS 0x88CD /* SERCOS III Protocol */ 365#define ETHERTYPE_MACSEC 0x88E5 /* 802.1AE MAC Security */ 366#define ETHERTYPE_PBB 0x88E7 /* 802.1Q Provider Backbone Bridges */ 367#define ETHERTYPE_FCOE 0x8906 /* Fibre Channel over Ethernet */ 368#define ETHERTYPE_LOOPBACK 0x9000 /* Loopback: used to test interfaces */ 369#define ETHERTYPE_8021Q9100 0x9100 /* IEEE 802.1Q stacking (proprietary) */ 370#define ETHERTYPE_LBACK ETHERTYPE_LOOPBACK /* DEC MOP loopback */ 371#define ETHERTYPE_XNSSM 0x9001 /* 3Com (Formerly Bridge Communications), XNS Systems Management */ 372#define ETHERTYPE_TCPSM 0x9002 /* 3Com (Formerly Bridge Communications), TCP/IP Systems Management */ 373#define ETHERTYPE_BCLOOP 0x9003 /* 3Com (Formerly Bridge Communications), loopback detection */ 374#define ETHERTYPE_8021Q9200 0x9200 /* IEEE 802.1Q stacking (proprietary) */ 375#define ETHERTYPE_8021Q9300 0x9300 /* IEEE 802.1Q stacking (proprietary) */ 376#define ETHERTYPE_DEBNI 0xAAAA /* DECNET? Used by VAX 6220 DEBNI */ 377#define ETHERTYPE_SONIX 0xFAF5 /* Sonix Arpeggio */ 378#define ETHERTYPE_VITAL 0xFF00 /* BBN VITAL-LanBridge cache wakeups */ 379 /* 0xFF00 - 0xFFOF ISC Bunker Ramo */ 380 381#define ETHERTYPE_MAX 0xFFFF /* Maximum valid ethernet type, reserved */ 382 383/* 384 * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have 385 * (type-ETHERTYPE_TRAIL)*512 bytes of data followed 386 * by an ETHER type (as given above) and then the (variable-length) header. 387 */ 388#define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */ 389#define ETHERTYPE_NTRAILER 16 390 391#define ETHERMTU (ETHER_MAX_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN) 392#define ETHERMIN (ETHER_MIN_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN) 393#define ETHERMTU_JUMBO (ETHER_MAX_LEN_JUMBO - ETHER_HDR_LEN - ETHER_CRC_LEN) 394/* 395 * The ETHER_BPF_MTAP macro should be used by drivers which support hardware 396 * offload for VLAN tag processing. It will check the mbuf to see if it has 397 * M_VLANTAG set, and if it does, will pass the packet along to 398 * ether_vlan_mtap. This function will re-insert VLAN tags for the duration 399 * of the tap, so they show up properly for network analyzers. 400 */ 401struct ifnet; 402struct mbuf; 403void ether_bpf_mtap_if(struct ifnet *ifp, struct mbuf *m); 404#define ETHER_BPF_MTAP(_ifp, _m) ether_bpf_mtap_if((_ifp), (_m)) 405 406/* 407 * Names for 802.1q priorities ("802.1p"). Notice that in this scheme, 408 * (0 < 1), allowing default 0-tagged traffic to take priority over background 409 * tagged traffic. 410 */ 411#define IEEE8021Q_PCP_BK 1 /* Background (lowest) */ 412#define IEEE8021Q_PCP_BE 0 /* Best effort (default) */ 413#define IEEE8021Q_PCP_EE 2 /* Excellent effort */ 414#define IEEE8021Q_PCP_CA 3 /* Critical applications */ 415#define IEEE8021Q_PCP_VI 4 /* Video, < 100ms latency and jitter */ 416#define IEEE8021Q_PCP_VO 5 /* Voice, < 10ms latency and jitter */ 417#define IEEE8021Q_PCP_IC 6 /* Internetwork control */ 418#define IEEE8021Q_PCP_NC 7 /* Network control (highest) */ 419 420#ifdef _KERNEL 421 422#include <sys/_eventhandler.h> 423 424struct ifnet; 425struct mbuf; 426struct route; 427struct sockaddr; 428struct bpf_if; 429struct ether_8021q_tag; 430 431extern uint32_t ether_crc32_le(const uint8_t *, size_t); 432extern uint32_t ether_crc32_be(const uint8_t *, size_t); 433extern void ether_demux(struct ifnet *, struct mbuf *); 434extern void ether_ifattach(struct ifnet *, const u_int8_t *); 435extern void ether_ifdetach(struct ifnet *); 436#ifdef VIMAGE 437struct vnet; 438extern void ether_reassign(struct ifnet *, struct vnet *, char *); 439#endif 440extern int ether_ioctl(struct ifnet *, u_long, caddr_t); 441extern int ether_output(struct ifnet *, struct mbuf *, 442 const struct sockaddr *, struct route *); 443extern int ether_output_frame(struct ifnet *, struct mbuf *); 444extern char *ether_sprintf(const u_int8_t *); 445void ether_vlan_mtap(struct bpf_if *, struct mbuf *, 446 void *, u_int); 447struct mbuf *ether_vlanencap_proto(struct mbuf *, uint16_t, uint16_t); 448bool ether_8021q_frame(struct mbuf **mp, struct ifnet *ife, 449 struct ifnet *p, const struct ether_8021q_tag *); 450void ether_gen_addr(struct ifnet *ifp, struct ether_addr *hwaddr); 451void ether_gen_addr_byname(const char *nameunit, struct ether_addr *hwaddr); 452 453static __inline struct mbuf *ether_vlanencap(struct mbuf *m, uint16_t tag) 454{ 455 456 return ether_vlanencap_proto(m, tag, ETHERTYPE_VLAN); 457} 458 459/* new ethernet interface attached event */ 460typedef void (*ether_ifattach_event_handler_t)(void *, struct ifnet *); 461EVENTHANDLER_DECLARE(ether_ifattach_event, ether_ifattach_event_handler_t); 462 463#else /* _KERNEL */ 464 465#include <sys/cdefs.h> 466 467/* 468 * Ethernet address conversion/parsing routines. 469 */ 470__BEGIN_DECLS 471struct ether_addr *ether_aton(const char *); 472struct ether_addr *ether_aton_r(const char *, struct ether_addr *); 473int ether_hostton(const char *, struct ether_addr *); 474int ether_line(const char *, struct ether_addr *, char *); 475char *ether_ntoa(const struct ether_addr *); 476char *ether_ntoa_r(const struct ether_addr *, char *); 477int ether_ntohost(char *, const struct ether_addr *); 478__END_DECLS 479 480#endif /* !_KERNEL */ 481 482#endif /* !_NET_ETHERNET_H_ */ 483