if_ether.h File Reference


Detailed Description

Ethernet interface definitions.

A more elaborated file description.

Definition in file if_ether.h.

Go to the source code of this file.

Data Structures

struct  ether_header
 Ethernet protocol header. More...
struct  ether_arp
 Ethernet ARP protocol structure. More...

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_charether_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.
NETBUFNutArpAllocNetBuf (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)


Define Documentation

#define ETHERTYPE_IP   0x0800

IP protocol.

Definition at line 131 of file if_ether.h.

Referenced by NutArpAllocNetBuf(), NutArpInput(), NutEtherInput(), and NutIpOutput().

#define ETHERTYPE_ARP   0x0806

Address resolution protocol.

Definition at line 132 of file if_ether.h.

Referenced by NutArpOutput(), and NutEtherInput().

#define ETHERMTU   1500

Ethernet maximum transfer unit.

Definition at line 134 of file if_ether.h.

#define ETHERMIN   (60-14)

Ethernet minimum transfer unit.

Definition at line 136 of file if_ether.h.


Typedef Documentation

ETHERHDR

Ethernet protocol header type.

ETHERARP

Ethernet ARP protocol type.


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.

Definition at line 60 of file ether_addr.c.

References CONST, and memset().

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.

Definition at line 99 of file ether_addr.c.

int NutArpCacheQuery ( NUTDEVICE dev,
u_long  ip,
u_char mac 
)


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