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