if_ether.h File Reference

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Detailed Description

Ethernet interface definitions.

A more elaborated file description.

Defines
#define	ETHERTYPE_IP   0x0800
	IP protocol.
#define	ETHERTYPE_ARP   0x0806
	Address resolution protocol.
#define	ETHERMTU   1500
	Ethernet maximum transfer unit.
#define	ETHERMIN   (60-14)
	Ethernet minimum transfer unit.
Typedefs
typedef ether_header	ETHERHDR
	Ethernet protocol header type.
typedef ether_arp	ETHERARP
	Ethernet ARP protocol type.
Functions
u_char *	ether_aton (CONST char *str)
	Convert an ASCII string to a binary Ethernet address.
char *	ether_ntoa (CONST u_char *mac)
	Convert a binary Ethernet address to an ASCII string.
void	NutArpInput (NUTDEVICE *dev, NETBUF *nb)
	Handle incoming ARP packets.
NETBUF *	NutArpAllocNetBuf (u_short type, u_long ip, u_char *mac)
	Allocate an ARP network buffer structure.
int	NutArpOutput (NUTDEVICE *dev, NETBUF *nb)
	Send an ARP packet.
void	NutArpCacheUpdate (NUTDEVICE *dev, u_long ip, u_char *ha)
	Update an ARP entry.
int	NutArpCacheQuery (NUTDEVICE *dev, u_long ip, u_char *mac)

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Function Documentation

u_char* ether_aton (  CONST char *  str  )

Convert an ASCII string to a binary Ethernet address. Note: This function returns a pointer to internal static storage space that will be overwritten by subsequent calls. Parameters: str  String to convert. Returns: Pointer to a static string that contains the converted binary address.

char* ether_ntoa (  CONST u_char *  mac  )

Convert a binary Ethernet address to an ASCII string. Note: This function returns a pointer to internal static storage space that will be overwritten by subsequent calls. Parameters: mac  Address to convert. Returns: Pointer to a static string that contains the converted ASCII string.

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