#ifndef _NET_INET_IPX_H_#define _NET_INET_IPX_H_/* *	The following information is in its entirety obtained from: * *	Novell 'IPX Router Specification' Version 1.10  *		Part No. 107-000029-001 * *	Which is available from ftp.novell.com */ #include <linux/netdevice.h>#include <net/datalink.h>#include <linux/ipx.h>#include <linux/list.h>#include <linux/slab.h> struct ipx_address {	__be32  net;	__u8    node[IPX_NODE_LEN]; 	__be16  sock;}; #define ipx_broadcast_node	"\377\377\377\377\377\377"#define ipx_this_node           "\0\0\0\0\0\0" #define IPX_MAX_PPROP_HOPS 8 struct ipxhdr {	__be16			ipx_checksum __packed;#define IPX_NO_CHECKSUM	cpu_to_be16(0xFFFF)	__be16			ipx_pktsize __packed;	__u8			ipx_tctrl;	__u8			ipx_type;#define IPX_TYPE_UNKNOWN	0x00#define IPX_TYPE_RIP		0x01	/* may also be 0 */#define IPX_TYPE_SAP		0x04	/* may also be 0 */#define IPX_TYPE_SPX		0x05	/* SPX protocol */#define IPX_TYPE_NCP		0x11	/* $lots for docs on this (SPIT) */#define IPX_TYPE_PPROP		0x14	/* complicated flood fill brdcast */	struct ipx_address	ipx_dest __packed;	struct ipx_address	ipx_source __packed;}; static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb){	return (struct ipxhdr *)skb_transport_header(skb);} struct ipx_interface {	/* IPX address */	__be32			if_netnum;	unsigned char		if_node[IPX_NODE_LEN];	atomic_t		refcnt; 	/* physical device info */	struct net_device	*if_dev;	struct datalink_proto	*if_dlink;	__be16			if_dlink_type; 	/* socket support */	unsigned short		if_sknum;	struct hlist_head	if_sklist;	spinlock_t		if_sklist_lock; 	/* administrative overhead */	int			if_ipx_offset;	unsigned char		if_internal;	unsigned char		if_primary;		struct list_head	node; /* node in ipx_interfaces list */}; struct ipx_route {	__be32			ir_net;	struct ipx_interface	*ir_intrfc;	unsigned char		ir_routed;	unsigned char		ir_router_node[IPX_NODE_LEN];	struct list_head	node; /* node in ipx_routes list */	atomic_t		refcnt;}; struct ipx_cb {	u8	ipx_tctrl;	__be32	ipx_dest_net;	__be32	ipx_source_net;	struct {		__be32 netnum;		int index;	} last_hop;}; #include <net/sock.h> struct ipx_sock {	/* struct sock has to be the first member of ipx_sock */	struct sock		sk;	struct ipx_address	dest_addr;	struct ipx_interface	*intrfc;	__be16			port;#ifdef CONFIG_IPX_INTERN	unsigned char		node[IPX_NODE_LEN];#endif	unsigned short		type;	/*	 * To handle special ncp connection-handling sockets for mars_nwe, 	 * the connection number must be stored in the socket.	 */	unsigned short		ipx_ncp_conn;}; static inline struct ipx_sock *ipx_sk(struct sock *sk){	return (struct ipx_sock *)sk;} #define IPX_SKB_CB(__skb) ((struct ipx_cb *)&((__skb)->cb[0])) #define IPX_MIN_EPHEMERAL_SOCKET	0x4000#define IPX_MAX_EPHEMERAL_SOCKET	0x7fff extern struct list_head ipx_routes;extern rwlock_t ipx_routes_lock; extern struct list_head ipx_interfaces;extern struct ipx_interface *ipx_interfaces_head(void);extern spinlock_t ipx_interfaces_lock; extern struct ipx_interface *ipx_primary_net; extern int ipx_proc_init(void);extern void ipx_proc_exit(void); extern const char *ipx_frame_name(__be16);extern const char *ipx_device_name(struct ipx_interface *intrfc); static __inline__ void ipxitf_hold(struct ipx_interface *intrfc){	atomic_inc(&intrfc->refcnt);} extern void ipxitf_down(struct ipx_interface *intrfc); static __inline__ void ipxitf_put(struct ipx_interface *intrfc){	if (atomic_dec_and_test(&intrfc->refcnt))		ipxitf_down(intrfc);} static __inline__ void ipxrtr_hold(struct ipx_route *rt){	        atomic_inc(&rt->refcnt);} static __inline__ void ipxrtr_put(struct ipx_route *rt){	        if (atomic_dec_and_test(&rt->refcnt))			                kfree(rt);}#endif /* _NET_INET_IPX_H_ */