initial check-in, version 0.5.0 v0.5.0

1 files changed, 47 insertions, 0 deletions

diff --git a/include/net/ethernet.h b/include/net/ethernet.h
new file mode 100644
index 00000000..a536502d
--- /dev/null
+++ b/include/net/ethernet.h
@@ -0,0 +1,47 @@
+#ifndef __NET_ETHERNET_H
+#define __NET_ETHERNET_H 1
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <netinet/if_ether.h>
+
+struct ether_addr {
+	uint8_t ether_addr_octet[ETH_ALEN];
+};
+
+struct ether_header {
+	uint8_t  ether_dhost[ETH_ALEN];
+	uint8_t  ether_shost[ETH_ALEN];
+	uint16_t ether_type;
+};
+
+#define	ETHERTYPE_PUP		0x0200
+#define ETHERTYPE_SPRITE	0x0500
+#define	ETHERTYPE_IP		0x0800
+#define	ETHERTYPE_ARP		0x0806
+#define	ETHERTYPE_REVARP	0x8035
+#define ETHERTYPE_AT		0x809B
+#define ETHERTYPE_AARP		0x80F3
+#define	ETHERTYPE_VLAN		0x8100
+#define ETHERTYPE_IPX		0x8137
+#define	ETHERTYPE_IPV6		0x86dd
+#define ETHERTYPE_LOOPBACK	0x9000
+
+
+#define	ETHER_ADDR_LEN	ETH_ALEN
+#define	ETHER_TYPE_LEN	2
+#define	ETHER_CRC_LEN	4
+#define	ETHER_HDR_LEN	ETH_HLEN
+#define	ETHER_MIN_LEN	(ETH_ZLEN + ETHER_CRC_LEN)
+#define	ETHER_MAX_LEN	(ETH_FRAME_LEN + ETHER_CRC_LEN)
+
+#define	ETHER_IS_VALID_LEN(foo)	\
+	((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)
+
+#define	ETHERTYPE_TRAIL		0x1000
+#define	ETHERTYPE_NTRAILER	16
+
+#define	ETHERMTU	ETH_DATA_LEN
+#define	ETHERMIN	(ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
+
+#endif