Michael Brown
824d6ffa7f
I want to get to the point where any header in include/ reflects a standard user-level header (e.g. a POSIX header), while everything that's specific to gPXE lives in include/gpxe/. Headers that reflect a Linux header (e.g. if_ether.h) should also be in include/gpxe/, with the same name as the Linux header and, preferably, the same names used for the definitions.
33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
#ifndef _GPXE_IF_ETHER_H
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#define _GPXE_IF_ETHER_H
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#include <stdint.h>
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#define ETH_ALEN 6 /* Size of Ethernet address */
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#define ETH_HLEN 14 /* Size of ethernet header */
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#define ETH_ZLEN 60 /* Minimum packet */
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#define ETH_FRAME_LEN 1514 /* Maximum packet */
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#define ETH_DATA_ALIGN 2 /* Amount needed to align the data after an ethernet header */
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#ifndef ETH_MAX_MTU
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#define ETH_MAX_MTU (ETH_FRAME_LEN-ETH_HLEN)
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#endif
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#define ETH_P_RAW 0x0000 /* Raw packet */
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#define ETH_P_IP 0x0800 /* Internet Protocl Packet */
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#define ETH_P_ARP 0x0806 /* Address Resolution Protocol */
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#define ETH_P_RARP 0x8035 /* Reverse Address resolution Protocol */
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#define ETH_P_IPV6 0x86DD /* IPv6 over blueblook */
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#define ETH_P_SLOW 0x8809 /* Ethernet slow protocols */
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/** An Ethernet link-layer header */
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struct ethhdr {
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/** Destination MAC address */
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uint8_t h_dest[ETH_ALEN];
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/** Source MAC address */
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uint8_t h_source[ETH_ALEN];
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/** Protocol ID */
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uint16_t h_protocol;
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} __attribute__ ((packed));
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#endif /* _GPXE_IF_ETHER_H */
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