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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/net/ipx.h
downloadlinux-stericsson-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
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!
Diffstat (limited to 'include/net/ipx.h')
-rw-r--r--include/net/ipx.h161
1 files changed, 161 insertions, 0 deletions
diff --git a/include/net/ipx.h b/include/net/ipx.h
new file mode 100644
index 000000000000..5c0cf33826c5
--- /dev/null
+++ b/include/net/ipx.h
@@ -0,0 +1,161 @@
+#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_ */