Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / net / ipx.h

diff --git a/kernel/include/net/ipx.h b/kernel/include/net/ipx.h
new file mode 100644 (file)
index 0000000..e5cff68
--- /dev/null
+++ b/kernel/include/net/ipx.h
@@ -0,0 +1,174 @@
+#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>
+#include <linux/slab.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 __packed;
+#define IPX_NO_CHECKSUM        cpu_to_be16(0xFFFF)
+       __be16                  ipx_pktsize __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 __packed;
+       struct ipx_address      ipx_source __packed;
+};
+
+/* From af_ipx.c */
+extern int sysctl_ipx_pprop_broadcasting;
+
+static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb)
+{
+       return (struct ipxhdr *)skb_transport_header(skb);
+}
+
+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;
+};
+
+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]))
+
+#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;
+struct ipx_interface *ipx_interfaces_head(void);
+extern spinlock_t ipx_interfaces_lock;
+
+extern struct ipx_interface *ipx_primary_net;
+
+int ipx_proc_init(void);
+void ipx_proc_exit(void);
+
+const char *ipx_frame_name(__be16);
+const char *ipx_device_name(struct ipx_interface *intrfc);
+
+static __inline__ void ipxitf_hold(struct ipx_interface *intrfc)
+{
+       atomic_inc(&intrfc->refcnt);
+}
+
+void ipxitf_down(struct ipx_interface *intrfc);
+struct ipx_interface *ipxitf_find_using_net(__be32 net);
+int ipxitf_send(struct ipx_interface *intrfc, struct sk_buff *skb, char *node);
+__be16 ipx_cksum(struct ipxhdr *packet, int length);
+int ipxrtr_add_route(__be32 network, struct ipx_interface *intrfc,
+                    unsigned char *node);
+void ipxrtr_del_routes(struct ipx_interface *intrfc);
+int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
+                       struct msghdr *msg, size_t len, int noblock);
+int ipxrtr_route_skb(struct sk_buff *skb);
+struct ipx_route *ipxrtr_lookup(__be32 net);
+int ipxrtr_ioctl(unsigned int cmd, void __user *arg);
+
+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_ */