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-rw-r--r--net/eth.h16
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diff --git a/net/eth.h b/net/eth.h
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+//http://www.saminiir.com/lets-code-tcp-ip-stack-1-ethernet-arp/
+//https://tools.ietf.org/html/rfc7414
+#ifndef FOOLOS_ETH_H
+#define FOOLOS_ETH_H
+
+#include <stdint.h>
+
+struct eth_hdr
+{
+ unsigned char dmac[6]; // destination mac
+ unsigned char smac[6]; // source mac
+ uint16_t ethertype; // length or type
+ unsigned char payload[]; // payload
+} __attribute__((packed));
+
+#endif