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diff --git a/include/linux/if.h b/include/linux/if.h
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+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Global definitions for the INET interface module.
+ *
+ * Version: @(#)if.h 1.0.2 04/18/93
+ *
+ * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
+ * Ross Biro, <bir7@leland.Stanford.Edu>
+ * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _LINUX_IF_H
+#define _LINUX_IF_H
+
+#include <linux/types.h> /* for "__kernel_caddr_t" et al */
+#include <linux/socket.h> /* for "struct sockaddr" et al */
+#include <linux/compiler.h> /* for "__user" et al */
+
+#define IFNAMSIZ 16
+#include <linux/hdlc/ioctl.h>
+
+/* Standard interface flags (netdevice->flags). */
+#define IFF_UP 0x1 /* interface is up */
+#define IFF_BROADCAST 0x2 /* broadcast address valid */
+#define IFF_DEBUG 0x4 /* turn on debugging */
+#define IFF_LOOPBACK 0x8 /* is a loopback net */
+#define IFF_POINTOPOINT 0x10 /* interface is has p-p link */
+#define IFF_NOTRAILERS 0x20 /* avoid use of trailers */
+#define IFF_RUNNING 0x40 /* resources allocated */
+#define IFF_NOARP 0x80 /* no ARP protocol */
+#define IFF_PROMISC 0x100 /* receive all packets */
+#define IFF_ALLMULTI 0x200 /* receive all multicast packets*/
+
+#define IFF_MASTER 0x400 /* master of a load balancer */
+#define IFF_SLAVE 0x800 /* slave of a load balancer */
+
+#define IFF_MULTICAST 0x1000 /* Supports multicast */
+
+#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_MASTER|IFF_SLAVE|IFF_RUNNING)
+
+#define IFF_PORTSEL 0x2000 /* can set media type */
+#define IFF_AUTOMEDIA 0x4000 /* auto media select active */
+#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses*/
+
+/* Private (from user) interface flags (netdevice->priv_flags). */
+#define IFF_802_1Q_VLAN 0x1 /* 802.1Q VLAN device. */
+#define IFF_EBRIDGE 0x2 /* Ethernet bridging device. */
+
+#define IF_GET_IFACE 0x0001 /* for querying only */
+#define IF_GET_PROTO 0x0002
+
+/* For definitions see hdlc.h */
+#define IF_IFACE_V35 0x1000 /* V.35 serial interface */
+#define IF_IFACE_V24 0x1001 /* V.24 serial interface */
+#define IF_IFACE_X21 0x1002 /* X.21 serial interface */
+#define IF_IFACE_T1 0x1003 /* T1 telco serial interface */
+#define IF_IFACE_E1 0x1004 /* E1 telco serial interface */
+#define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */
+#define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */
+
+/* For definitions see hdlc.h */
+#define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */
+#define IF_PROTO_PPP 0x2001 /* PPP protocol */
+#define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */
+#define IF_PROTO_FR 0x2003 /* Frame Relay protocol */
+#define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */
+#define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */
+#define IF_PROTO_X25 0x2006 /* X.25 */
+#define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */
+#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */
+#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */
+#define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */
+#define IF_PROTO_FR_ETH_PVC 0x200B
+#define IF_PROTO_RAW 0x200C /* RAW Socket */
+
+
+/*
+ * Device mapping structure. I'd just gone off and designed a
+ * beautiful scheme using only loadable modules with arguments
+ * for driver options and along come the PCMCIA people 8)
+ *
+ * Ah well. The get() side of this is good for WDSETUP, and it'll
+ * be handy for debugging things. The set side is fine for now and
+ * being very small might be worth keeping for clean configuration.
+ */
+
+struct ifmap
+{
+ unsigned long mem_start;
+ unsigned long mem_end;
+ unsigned short base_addr;
+ unsigned char irq;
+ unsigned char dma;
+ unsigned char port;
+ /* 3 bytes spare */
+};
+
+struct if_settings
+{
+ unsigned int type; /* Type of physical device or protocol */
+ unsigned int size; /* Size of the data allocated by the caller */
+ union {
+ /* {atm/eth/dsl}_settings anyone ? */
+ raw_hdlc_proto __user *raw_hdlc;
+ cisco_proto __user *cisco;
+ fr_proto __user *fr;
+ fr_proto_pvc __user *fr_pvc;
+ fr_proto_pvc_info __user *fr_pvc_info;
+
+ /* interface settings */
+ sync_serial_settings __user *sync;
+ te1_settings __user *te1;
+ } ifs_ifsu;
+};
+
+/*
+ * Interface request structure used for socket
+ * ioctl's. All interface ioctl's must have parameter
+ * definitions which begin with ifr_name. The
+ * remainder may be interface specific.
+ */
+
+struct ifreq
+{
+#define IFHWADDRLEN 6
+ union
+ {
+ char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
+ } ifr_ifrn;
+
+ union {
+ struct sockaddr ifru_addr;
+ struct sockaddr ifru_dstaddr;
+ struct sockaddr ifru_broadaddr;
+ struct sockaddr ifru_netmask;
+ struct sockaddr ifru_hwaddr;
+ short ifru_flags;
+ int ifru_ivalue;
+ int ifru_mtu;
+ struct ifmap ifru_map;
+ char ifru_slave[IFNAMSIZ]; /* Just fits the size */
+ char ifru_newname[IFNAMSIZ];
+ void __user * ifru_data;
+ struct if_settings ifru_settings;
+ } ifr_ifru;
+};
+
+#define ifr_name ifr_ifrn.ifrn_name /* interface name */
+#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
+#define ifr_addr ifr_ifru.ifru_addr /* address */
+#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */
+#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
+#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */
+#define ifr_flags ifr_ifru.ifru_flags /* flags */
+#define ifr_metric ifr_ifru.ifru_ivalue /* metric */
+#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
+#define ifr_map ifr_ifru.ifru_map /* device map */
+#define ifr_slave ifr_ifru.ifru_slave /* slave device */
+#define ifr_data ifr_ifru.ifru_data /* for use by interface */
+#define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */
+#define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */
+#define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */
+#define ifr_newname ifr_ifru.ifru_newname /* New name */
+#define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/
+
+/*
+ * Structure used in SIOCGIFCONF request.
+ * Used to retrieve interface configuration
+ * for machine (useful for programs which
+ * must know all networks accessible).
+ */
+
+struct ifconf
+{
+ int ifc_len; /* size of buffer */
+ union
+ {
+ char __user *ifcu_buf;
+ struct ifreq __user *ifcu_req;
+ } ifc_ifcu;
+};
+#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
+#define ifc_req ifc_ifcu.ifcu_req /* array of structures */
+
+
+#endif /* _LINUX_IF_H */