src/include/gpxe/if_ether.h

   1 #ifndef _GPXE_IF_ETHER_H
   2 #define _GPXE_IF_ETHER_H
   3
   4 FILE_LICENCE ( GPL2_OR_LATER );
   5
   6 #include <stdint.h>
   7
   8 #define ETH_ALEN                6       /* Size of Ethernet address */
   9 #define ETH_HLEN                14      /* Size of ethernet header */
  10 #define ETH_ZLEN                60      /* Minimum packet */
  11 #define ETH_FRAME_LEN           1514    /* Maximum packet */
  12 #define ETH_DATA_ALIGN          2       /* Amount needed to align the data after an ethernet header */
  13 #ifndef ETH_MAX_MTU
  14 #define ETH_MAX_MTU             (ETH_FRAME_LEN-ETH_HLEN)
  15 #endif
  16
  17 #define ETH_P_RAW       0x0000  /* Raw packet */
  18 #define ETH_P_IP        0x0800  /* Internet Protocl Packet */
  19 #define ETH_P_ARP       0x0806  /* Address Resolution Protocol */
  20 #define ETH_P_RARP      0x8035  /* Reverse Address resolution Protocol */
  21 #define ETH_P_IPV6      0x86DD  /* IPv6 over blueblook */
  22 #define ETH_P_SLOW      0x8809  /* Ethernet slow protocols */
  23 #define ETH_P_EAPOL     0x888E  /* 802.1X EAP over LANs */
  24 #define ETH_P_AOE       0x88A2  /* ATA over Ethernet */
  25
  26 /** An Ethernet link-layer header */
  27 struct ethhdr {
  28         /** Destination MAC address */
  29         uint8_t h_dest[ETH_ALEN];
  30         /** Source MAC address */
  31         uint8_t h_source[ETH_ALEN];
  32         /** Protocol ID */
  33         uint16_t h_protocol;
  34 } __attribute__ ((packed));
  35
  36 #endif  /* _GPXE_IF_ETHER_H */