#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> 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 __attribute__ ((packed)); #define IPX_NO_CHECKSUM __constant_htons(0xFFFF) __be16 ipx_pktsize __attribute__ ((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 __attribute__ ((packed)); struct ipx_address ipx_source __attribute__ ((packed)); }; static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb) { return (struct ipxhdr *)skb->h.raw; } 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; }; #ifdef __KERNEL__ 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])) #endif #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_ */