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Last change
on this file was
1649,
checked in by murphpo, 13 years ago
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dyspan workshop prep
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-
Property svn:executable set to
*
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File size:
1016 bytes
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| Line | |
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| 1 | typedef struct { |
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| 2 | unsigned char version; |
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| 3 | unsigned char typeOfService; |
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| 4 | unsigned short length; |
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| 5 | unsigned short identification; |
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| 6 | unsigned short frag_offset; |
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| 7 | unsigned char ttl; |
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| 8 | unsigned char protocol; |
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| 9 | unsigned short checksum; |
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| 10 | unsigned int src_addr_ip; |
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| 11 | unsigned int dest_addr_ip; |
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| 12 | } __attribute__((packed)) ipv4_header; |
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| 13 | |
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| 14 | typedef struct { |
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| 15 | unsigned short hardware_type; |
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| 16 | unsigned short protocol_type; |
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| 17 | unsigned char hard_addr_len; |
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| 18 | unsigned char prot_addr_len; |
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| 19 | unsigned short opcode; |
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| 20 | // unsigned char src_addr_mac[6]; |
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| 21 | unsigned int src_addr_mac_hi; |
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| 22 | unsigned short src_addr_mac_lo; |
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| 23 | unsigned int src_addr_ip; |
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| 24 | // unsigned char dest_addr_mac[6]; |
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| 25 | unsigned int dest_addr_mac_hi; |
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| 26 | unsigned short dest_addr_mac_lo; |
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| 27 | unsigned int dest_addr_ip; |
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| 28 | } __attribute__((packed)) arp_header; |
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| 29 | |
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| 30 | typedef struct { |
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| 31 | unsigned char dest_addr_mac[6]; |
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| 32 | unsigned char src_addr_mac[6]; |
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| 33 | unsigned short ethertype; |
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| 34 | } __attribute__((packed)) ethernet_header; |
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| 35 | |
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| 36 | #define ETHERTYPE_ARP 0x0806 |
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| 37 | #define ETHERTYPE_IP 0x0800 |
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