1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
162 lines
3.8 KiB
C
162 lines
3.8 KiB
C
#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 {
|
|
__u32 net;
|
|
__u8 node[IPX_NODE_LEN];
|
|
__u16 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 {
|
|
__u16 ipx_checksum __attribute__ ((packed));
|
|
#define IPX_NO_CHECKSUM 0xFFFF
|
|
__u16 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 */
|
|
__u32 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;
|
|
unsigned short 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 {
|
|
__u32 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;
|
|
u32 ipx_dest_net;
|
|
u32 ipx_source_net;
|
|
struct {
|
|
u32 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;
|
|
unsigned short 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(unsigned short);
|
|
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_ */
|