1 #ifndef _NET_INET_IPX_H_
2 #define _NET_INET_IPX_H_
4 * The following information is in its entirety obtained from:
6 * Novell 'IPX Router Specification' Version 1.10
7 * Part No. 107-000029-001
9 * Which is available from ftp.novell.com
12 #include <linux/netdevice.h>
13 #include <net/datalink.h>
14 #include <linux/ipx.h>
15 #include <linux/list.h>
16 #include <linux/slab.h>
17 #include <linux/refcount.h>
21 __u8 node
[IPX_NODE_LEN
];
25 #define ipx_broadcast_node "\377\377\377\377\377\377"
26 #define ipx_this_node "\0\0\0\0\0\0"
28 #define IPX_MAX_PPROP_HOPS 8
31 __be16 ipx_checksum __packed
;
32 #define IPX_NO_CHECKSUM cpu_to_be16(0xFFFF)
33 __be16 ipx_pktsize __packed
;
36 #define IPX_TYPE_UNKNOWN 0x00
37 #define IPX_TYPE_RIP 0x01 /* may also be 0 */
38 #define IPX_TYPE_SAP 0x04 /* may also be 0 */
39 #define IPX_TYPE_SPX 0x05 /* SPX protocol */
40 #define IPX_TYPE_NCP 0x11 /* $lots for docs on this (SPIT) */
41 #define IPX_TYPE_PPROP 0x14 /* complicated flood fill brdcast */
42 struct ipx_address ipx_dest __packed
;
43 struct ipx_address ipx_source __packed
;
47 extern int sysctl_ipx_pprop_broadcasting
;
49 static __inline__
struct ipxhdr
*ipx_hdr(struct sk_buff
*skb
)
51 return (struct ipxhdr
*)skb_transport_header(skb
);
54 struct ipx_interface
{
57 unsigned char if_node
[IPX_NODE_LEN
];
60 /* physical device info */
61 struct net_device
*if_dev
;
62 struct datalink_proto
*if_dlink
;
66 unsigned short if_sknum
;
67 struct hlist_head if_sklist
;
68 spinlock_t if_sklist_lock
;
70 /* administrative overhead */
72 unsigned char if_internal
;
73 unsigned char if_primary
;
75 struct list_head node
; /* node in ipx_interfaces list */
80 struct ipx_interface
*ir_intrfc
;
81 unsigned char ir_routed
;
82 unsigned char ir_router_node
[IPX_NODE_LEN
];
83 struct list_head node
; /* node in ipx_routes list */
90 __be32 ipx_source_net
;
100 /* struct sock has to be the first member of ipx_sock */
102 struct ipx_address dest_addr
;
103 struct ipx_interface
*intrfc
;
105 #ifdef CONFIG_IPX_INTERN
106 unsigned char node
[IPX_NODE_LEN
];
110 * To handle special ncp connection-handling sockets for mars_nwe,
111 * the connection number must be stored in the socket.
113 unsigned short ipx_ncp_conn
;
116 static inline struct ipx_sock
*ipx_sk(struct sock
*sk
)
118 return (struct ipx_sock
*)sk
;
121 #define IPX_SKB_CB(__skb) ((struct ipx_cb *)&((__skb)->cb[0]))
123 #define IPX_MIN_EPHEMERAL_SOCKET 0x4000
124 #define IPX_MAX_EPHEMERAL_SOCKET 0x7fff
126 extern struct list_head ipx_routes
;
127 extern rwlock_t ipx_routes_lock
;
129 extern struct list_head ipx_interfaces
;
130 struct ipx_interface
*ipx_interfaces_head(void);
131 extern spinlock_t ipx_interfaces_lock
;
133 extern struct ipx_interface
*ipx_primary_net
;
135 int ipx_proc_init(void);
136 void ipx_proc_exit(void);
138 const char *ipx_frame_name(__be16
);
139 const char *ipx_device_name(struct ipx_interface
*intrfc
);
141 static __inline__
void ipxitf_hold(struct ipx_interface
*intrfc
)
143 refcount_inc(&intrfc
->refcnt
);
146 void ipxitf_down(struct ipx_interface
*intrfc
);
147 struct ipx_interface
*ipxitf_find_using_net(__be32 net
);
148 int ipxitf_send(struct ipx_interface
*intrfc
, struct sk_buff
*skb
, char *node
);
149 __be16
ipx_cksum(struct ipxhdr
*packet
, int length
);
150 int ipxrtr_add_route(__be32 network
, struct ipx_interface
*intrfc
,
151 unsigned char *node
);
152 void ipxrtr_del_routes(struct ipx_interface
*intrfc
);
153 int ipxrtr_route_packet(struct sock
*sk
, struct sockaddr_ipx
*usipx
,
154 struct msghdr
*msg
, size_t len
, int noblock
);
155 int ipxrtr_route_skb(struct sk_buff
*skb
);
156 struct ipx_route
*ipxrtr_lookup(__be32 net
);
157 int ipxrtr_ioctl(unsigned int cmd
, void __user
*arg
);
159 static __inline__
void ipxitf_put(struct ipx_interface
*intrfc
)
161 if (refcount_dec_and_test(&intrfc
->refcnt
))
165 static __inline__
void ipxrtr_hold(struct ipx_route
*rt
)
167 refcount_inc(&rt
->refcnt
);
170 static __inline__
void ipxrtr_put(struct ipx_route
*rt
)
172 if (refcount_dec_and_test(&rt
->refcnt
))
175 #endif /* _NET_INET_IPX_H_ */