atalk.h

这是linux内核C源代码58的源程序

/*
 *	AppleTalk networking structures
 *
 *	The following are directly referenced from the University Of Michigan
 *	netatalk for compatibility reasons.
 */

#ifndef __LINUX_ATALK_H__
#define __LINUX_ATALK_H__

#define ATPORT_FIRST	1
#define ATPORT_RESERVED	128
#define ATPORT_LAST	254 /* 254 is only legal on localtalk */ 
#define ATADDR_ANYNET	(__u16)0
#define ATADDR_ANYNODE	(__u8)0
#define ATADDR_ANYPORT  (__u8)0
#define ATADDR_BCAST	(__u8)255
#define DDP_MAXSZ	587
#define DDP_MAXHOPS     15      /* 4 bits of hop counter */

#define SIOCATALKDIFADDR       (SIOCPROTOPRIVATE + 0)

struct at_addr 
{
	__u16	s_net;
	__u8	s_node;
};

struct sockaddr_at 
{
	sa_family_t	sat_family;
	__u8		sat_port;
	struct at_addr	sat_addr;
	char		sat_zero[ 8 ];
};

struct netrange 
{
	__u8	nr_phase;
	__u16	nr_firstnet;
	__u16	nr_lastnet;
};

struct atalk_route
{
	struct net_device *dev;
	struct at_addr target;
	struct at_addr gateway;
	int flags;
	struct atalk_route *next;
};

struct atalk_iface
{
	struct net_device *dev;
	struct at_addr address;		/* Our address */
	int status;			/* What are we doing? */
#define ATIF_PROBE	1		/* Probing for an address */
#define ATIF_PROBE_FAIL	2		/* Probe collided */
	struct netrange nets;		/* Associated direct netrange */
	struct atalk_iface *next;
};
	
struct atalk_sock
{
	unsigned short dest_net;
	unsigned short src_net;
	unsigned char dest_node;
	unsigned char src_node;
	unsigned char dest_port;
	unsigned char src_port;
};


#endif /* __LINUX_ATALK_H__ */