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 */ 37