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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /include/net/ipx.h
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/net/ipx.h')
-rw-r--r--include/net/ipx.h171
1 files changed, 171 insertions, 0 deletions
diff --git a/include/net/ipx.h b/include/net/ipx.h
new file mode 100644
index 000000000..9d1342807
--- /dev/null
+++ b/include/net/ipx.h
@@ -0,0 +1,171 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#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>
+#include <linux/refcount.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;
+
+struct ipx_interface {
+ /* IPX address */
+ __be32 if_netnum;
+ unsigned char if_node[IPX_NODE_LEN];
+ refcount_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 */
+ refcount_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)
+{
+ refcount_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 (refcount_dec_and_test(&intrfc->refcnt))
+ ipxitf_down(intrfc);
+}
+
+static __inline__ void ipxrtr_hold(struct ipx_route *rt)
+{
+ refcount_inc(&rt->refcnt);
+}
+
+static __inline__ void ipxrtr_put(struct ipx_route *rt)
+{
+ if (refcount_dec_and_test(&rt->refcnt))
+ kfree(rt);
+}
+#endif /* _NET_INET_IPX_H_ */