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2a9e950701
These header files are never installed to user consumption, so any __KERNEL__ cpp checks are superfluous. Projects should also not copy these files into their userland utility sources and try to use them there. If they insist on doing so, the onus is on them to sanitize the headers as needed. Signed-off-by: David S. Miller <davem@davemloft.net>
161 lines
3.7 KiB
C
161 lines
3.7 KiB
C
#ifndef _NET_INET_IPX_H_
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#define _NET_INET_IPX_H_
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/*
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* The following information is in its entirety obtained from:
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*
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* Novell 'IPX Router Specification' Version 1.10
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* Part No. 107-000029-001
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*
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* Which is available from ftp.novell.com
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*/
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#include <linux/netdevice.h>
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#include <net/datalink.h>
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#include <linux/ipx.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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struct ipx_address {
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__be32 net;
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__u8 node[IPX_NODE_LEN];
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__be16 sock;
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};
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#define ipx_broadcast_node "\377\377\377\377\377\377"
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#define ipx_this_node "\0\0\0\0\0\0"
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#define IPX_MAX_PPROP_HOPS 8
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struct ipxhdr {
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__be16 ipx_checksum __packed;
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#define IPX_NO_CHECKSUM cpu_to_be16(0xFFFF)
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__be16 ipx_pktsize __packed;
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__u8 ipx_tctrl;
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__u8 ipx_type;
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#define IPX_TYPE_UNKNOWN 0x00
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#define IPX_TYPE_RIP 0x01 /* may also be 0 */
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#define IPX_TYPE_SAP 0x04 /* may also be 0 */
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#define IPX_TYPE_SPX 0x05 /* SPX protocol */
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#define IPX_TYPE_NCP 0x11 /* $lots for docs on this (SPIT) */
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#define IPX_TYPE_PPROP 0x14 /* complicated flood fill brdcast */
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struct ipx_address ipx_dest __packed;
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struct ipx_address ipx_source __packed;
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};
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static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb)
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{
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return (struct ipxhdr *)skb_transport_header(skb);
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}
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struct ipx_interface {
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/* IPX address */
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__be32 if_netnum;
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unsigned char if_node[IPX_NODE_LEN];
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atomic_t refcnt;
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/* physical device info */
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struct net_device *if_dev;
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struct datalink_proto *if_dlink;
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__be16 if_dlink_type;
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/* socket support */
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unsigned short if_sknum;
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struct hlist_head if_sklist;
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spinlock_t if_sklist_lock;
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/* administrative overhead */
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int if_ipx_offset;
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unsigned char if_internal;
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unsigned char if_primary;
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struct list_head node; /* node in ipx_interfaces list */
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};
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struct ipx_route {
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__be32 ir_net;
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struct ipx_interface *ir_intrfc;
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unsigned char ir_routed;
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unsigned char ir_router_node[IPX_NODE_LEN];
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struct list_head node; /* node in ipx_routes list */
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atomic_t refcnt;
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};
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struct ipx_cb {
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u8 ipx_tctrl;
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__be32 ipx_dest_net;
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__be32 ipx_source_net;
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struct {
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__be32 netnum;
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int index;
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} last_hop;
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};
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#include <net/sock.h>
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struct ipx_sock {
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/* struct sock has to be the first member of ipx_sock */
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struct sock sk;
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struct ipx_address dest_addr;
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struct ipx_interface *intrfc;
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__be16 port;
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#ifdef CONFIG_IPX_INTERN
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unsigned char node[IPX_NODE_LEN];
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#endif
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unsigned short type;
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/*
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* To handle special ncp connection-handling sockets for mars_nwe,
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* the connection number must be stored in the socket.
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*/
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unsigned short ipx_ncp_conn;
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};
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static inline struct ipx_sock *ipx_sk(struct sock *sk)
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{
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return (struct ipx_sock *)sk;
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}
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#define IPX_SKB_CB(__skb) ((struct ipx_cb *)&((__skb)->cb[0]))
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#define IPX_MIN_EPHEMERAL_SOCKET 0x4000
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#define IPX_MAX_EPHEMERAL_SOCKET 0x7fff
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extern struct list_head ipx_routes;
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extern rwlock_t ipx_routes_lock;
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extern struct list_head ipx_interfaces;
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extern struct ipx_interface *ipx_interfaces_head(void);
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extern spinlock_t ipx_interfaces_lock;
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extern struct ipx_interface *ipx_primary_net;
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extern int ipx_proc_init(void);
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extern void ipx_proc_exit(void);
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extern const char *ipx_frame_name(__be16);
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extern const char *ipx_device_name(struct ipx_interface *intrfc);
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static __inline__ void ipxitf_hold(struct ipx_interface *intrfc)
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{
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atomic_inc(&intrfc->refcnt);
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}
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extern void ipxitf_down(struct ipx_interface *intrfc);
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static __inline__ void ipxitf_put(struct ipx_interface *intrfc)
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{
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if (atomic_dec_and_test(&intrfc->refcnt))
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ipxitf_down(intrfc);
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}
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static __inline__ void ipxrtr_hold(struct ipx_route *rt)
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{
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atomic_inc(&rt->refcnt);
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}
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static __inline__ void ipxrtr_put(struct ipx_route *rt)
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{
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if (atomic_dec_and_test(&rt->refcnt))
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kfree(rt);
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}
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#endif /* _NET_INET_IPX_H_ */
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