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build/patch/misc/wireless-bring-back-headers.patch

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From 3ec70749ae3cb072f19d886981a217121f776415 Mon Sep 17 00:00:00 2001
From: Igor Pecovnik <igor.pecovnik@gmail.com>
Date: Sat, 6 Nov 2021 19:15:23 +0100
Subject: [PATCH] Revert "net: Remove net/ipx.h and uapi/linux/ipx.h header
files"
This reverts commit 6c9b40844751ea30c72f7a2f92f4d704bc6b2927.
---
include/net/ipx.h | 171 +++++++++++++++++++++++++++++++++++++++
include/uapi/linux/ipx.h | 87 ++++++++++++++++++++
2 files changed, 258 insertions(+)
create mode 100644 include/net/ipx.h
create mode 100644 include/uapi/linux/ipx.h
diff --git a/include/net/ipx.h b/include/net/ipx.h
new file mode 100644
index 000000000000..9d1342807b59
--- /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_ */
diff --git a/include/uapi/linux/ipx.h b/include/uapi/linux/ipx.h
new file mode 100644
index 000000000000..3168137adae8
--- /dev/null
+++ b/include/uapi/linux/ipx.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _IPX_H_
+#define _IPX_H_
+#include <linux/libc-compat.h> /* for compatibility with glibc netipx/ipx.h */
+#include <linux/types.h>
+#include <linux/sockios.h>
+#include <linux/socket.h>
+#define IPX_NODE_LEN 6
+#define IPX_MTU 576
+
+#if __UAPI_DEF_SOCKADDR_IPX
+struct sockaddr_ipx {
+ __kernel_sa_family_t sipx_family;
+ __be16 sipx_port;
+ __be32 sipx_network;
+ unsigned char sipx_node[IPX_NODE_LEN];
+ __u8 sipx_type;
+ unsigned char sipx_zero; /* 16 byte fill */
+};
+#endif /* __UAPI_DEF_SOCKADDR_IPX */
+
+/*
+ * So we can fit the extra info for SIOCSIFADDR into the address nicely
+ */
+#define sipx_special sipx_port
+#define sipx_action sipx_zero
+#define IPX_DLTITF 0
+#define IPX_CRTITF 1
+
+#if __UAPI_DEF_IPX_ROUTE_DEFINITION
+struct ipx_route_definition {
+ __be32 ipx_network;
+ __be32 ipx_router_network;
+ unsigned char ipx_router_node[IPX_NODE_LEN];
+};
+#endif /* __UAPI_DEF_IPX_ROUTE_DEFINITION */
+
+#if __UAPI_DEF_IPX_INTERFACE_DEFINITION
+struct ipx_interface_definition {
+ __be32 ipx_network;
+ unsigned char ipx_device[16];
+ unsigned char ipx_dlink_type;
+#define IPX_FRAME_NONE 0
+#define IPX_FRAME_SNAP 1
+#define IPX_FRAME_8022 2
+#define IPX_FRAME_ETHERII 3
+#define IPX_FRAME_8023 4
+#define IPX_FRAME_TR_8022 5 /* obsolete */
+ unsigned char ipx_special;
+#define IPX_SPECIAL_NONE 0
+#define IPX_PRIMARY 1
+#define IPX_INTERNAL 2
+ unsigned char ipx_node[IPX_NODE_LEN];
+};
+#endif /* __UAPI_DEF_IPX_INTERFACE_DEFINITION */
+
+#if __UAPI_DEF_IPX_CONFIG_DATA
+struct ipx_config_data {
+ unsigned char ipxcfg_auto_select_primary;
+ unsigned char ipxcfg_auto_create_interfaces;
+};
+#endif /* __UAPI_DEF_IPX_CONFIG_DATA */
+
+/*
+ * OLD Route Definition for backward compatibility.
+ */
+
+#if __UAPI_DEF_IPX_ROUTE_DEF
+struct ipx_route_def {
+ __be32 ipx_network;
+ __be32 ipx_router_network;
+#define IPX_ROUTE_NO_ROUTER 0
+ unsigned char ipx_router_node[IPX_NODE_LEN];
+ unsigned char ipx_device[16];
+ unsigned short ipx_flags;
+#define IPX_RT_SNAP 8
+#define IPX_RT_8022 4
+#define IPX_RT_BLUEBOOK 2
+#define IPX_RT_ROUTED 1
+};
+#endif /* __UAPI_DEF_IPX_ROUTE_DEF */
+
+#define SIOCAIPXITFCRT (SIOCPROTOPRIVATE)
+#define SIOCAIPXPRISLT (SIOCPROTOPRIVATE + 1)
+#define SIOCIPXCFGDATA (SIOCPROTOPRIVATE + 2)
+#define SIOCIPXNCPCONN (SIOCPROTOPRIVATE + 3)
+#endif /* _IPX_H_ */
--
2.25.1
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