if_ether.h 4.9 KB

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  1. /*
  2. * INET An implementation of the TCP/IP protocol suite for the LINUX
  3. * operating system. INET is implemented using the BSD Socket
  4. * interface as the means of communication with the user level.
  5. *
  6. * Global definitions for the Ethernet IEEE 802.3 interface.
  7. *
  8. * Version: @(#)if_ether.h 1.0.1a 02/08/94
  9. *
  10. * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  11. * Donald Becker, <becker@super.org>
  12. * Alan Cox, <alan@redhat.com>
  13. * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
  14. *
  15. * This program is free software; you can redistribute it and/or
  16. * modify it under the terms of the GNU General Public License
  17. * as published by the Free Software Foundation; either version
  18. * 2 of the License, or (at your option) any later version.
  19. */
  20. #ifndef _LINUX_IF_ETHER_H
  21. #define _LINUX_IF_ETHER_H
  22. #include <linux/types.h>
  23. /*
  24. * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
  25. * and FCS/CRC (frame check sequence).
  26. */
  27. #define ETH_ALEN 6 /* Octets in one ethernet addr */
  28. #define ETH_HLEN 14 /* Total octets in header. */
  29. #define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
  30. #define ETH_DATA_LEN 1500 /* Max. octets in payload */
  31. #define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
  32. /*
  33. * These are the defined Ethernet Protocol ID's.
  34. */
  35. #define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */
  36. #define ETH_P_PUP 0x0200 /* Xerox PUP packet */
  37. #define ETH_P_PUPAT 0x0201 /* Xerox PUP Addr Trans packet */
  38. #define ETH_P_IP 0x0800 /* Internet Protocol packet */
  39. #define ETH_P_X25 0x0805 /* CCITT X.25 */
  40. #define ETH_P_ARP 0x0806 /* Address Resolution packet */
  41. #define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */
  42. #define ETH_P_IEEEPUP 0x0a00 /* Xerox IEEE802.3 PUP packet */
  43. #define ETH_P_IEEEPUPAT 0x0a01 /* Xerox IEEE802.3 PUP Addr Trans packet */
  44. #define ETH_P_DEC 0x6000 /* DEC Assigned proto */
  45. #define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */
  46. #define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */
  47. #define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */
  48. #define ETH_P_LAT 0x6004 /* DEC LAT */
  49. #define ETH_P_DIAG 0x6005 /* DEC Diagnostics */
  50. #define ETH_P_CUST 0x6006 /* DEC Customer use */
  51. #define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */
  52. #define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */
  53. #define ETH_P_ATALK 0x809B /* Appletalk DDP */
  54. #define ETH_P_AARP 0x80F3 /* Appletalk AARP */
  55. #define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */
  56. #define ETH_P_IPX 0x8137 /* IPX over DIX */
  57. #define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */
  58. #define ETH_P_SLOW 0x8809 /* Slow Protocol. See 802.3ad 43B */
  59. #define ETH_P_WCCP 0x883E /* Web-cache coordination protocol
  60. * defined in draft-wilson-wrec-wccp-v2-00.txt */
  61. #define ETH_P_PPP_DISC 0x8863 /* PPPoE discovery messages */
  62. #define ETH_P_PPP_SES 0x8864 /* PPPoE session messages */
  63. #define ETH_P_MPLS_UC 0x8847 /* MPLS Unicast traffic */
  64. #define ETH_P_MPLS_MC 0x8848 /* MPLS Multicast traffic */
  65. #define ETH_P_ATMMPOA 0x884c /* MultiProtocol Over ATM */
  66. #define ETH_P_ATMFATE 0x8884 /* Frame-based ATM Transport
  67. * over Ethernet
  68. */
  69. #define ETH_P_AOE 0x88A2 /* ATA over Ethernet */
  70. #define ETH_P_TIPC 0x88CA /* TIPC */
  71. /*
  72. * Non DIX types. Won't clash for 1500 types.
  73. */
  74. #define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */
  75. #define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */
  76. #define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */
  77. #define ETH_P_802_2 0x0004 /* 802.2 frames */
  78. #define ETH_P_SNAP 0x0005 /* Internal only */
  79. #define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */
  80. #define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/
  81. #define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */
  82. #define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */
  83. #define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/
  84. #define ETH_P_TR_802_2 0x0011 /* 802.2 frames */
  85. #define ETH_P_MOBITEX 0x0015 /* Mobitex (kaz@cafe.net) */
  86. #define ETH_P_CONTROL 0x0016 /* Card specific control frames */
  87. #define ETH_P_IRDA 0x0017 /* Linux-IrDA */
  88. #define ETH_P_ECONET 0x0018 /* Acorn Econet */
  89. #define ETH_P_HDLC 0x0019 /* HDLC frames */
  90. #define ETH_P_ARCNET 0x001A /* 1A for ArcNet :-) */
  91. /*
  92. * This is an Ethernet frame header.
  93. */
  94. struct ethhdr {
  95. unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
  96. unsigned char h_source[ETH_ALEN]; /* source ether addr */
  97. __be16 h_proto; /* packet type ID field */
  98. } __attribute__((packed));
  99. #ifdef __KERNEL__
  100. #include <linux/skbuff.h>
  101. static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
  102. {
  103. return (struct ethhdr *)skb->mac.raw;
  104. }
  105. #ifdef CONFIG_SYSCTL
  106. extern struct ctl_table ether_table[];
  107. #endif
  108. #endif
  109. #endif /* _LINUX_IF_ETHER_H */