diff --git a/libc/kernel/common/linux/if.h b/libc/kernel/common/linux/if.h
new file mode 100644
index 0000000..47c29d9
--- /dev/null
+++ b/libc/kernel/common/linux/if.h
@@ -0,0 +1,176 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_IF_H
+#define _LINUX_IF_H
+
+#include <linux/types.h>  
+#include <linux/socket.h>  
+#include <linux/compiler.h>  
+
+#define IFNAMSIZ 16
+#include <linux/hdlc/ioctl.h>
+
+#define IFF_UP 0x1  
+#define IFF_BROADCAST 0x2  
+#define IFF_DEBUG 0x4  
+#define IFF_LOOPBACK 0x8  
+#define IFF_POINTOPOINT 0x10  
+#define IFF_NOTRAILERS 0x20  
+#define IFF_RUNNING 0x40  
+#define IFF_NOARP 0x80  
+#define IFF_PROMISC 0x100  
+#define IFF_ALLMULTI 0x200  
+
+#define IFF_MASTER 0x400  
+#define IFF_SLAVE 0x800  
+
+#define IFF_MULTICAST 0x1000  
+
+#define IFF_PORTSEL 0x2000  
+#define IFF_AUTOMEDIA 0x4000  
+#define IFF_DYNAMIC 0x8000  
+
+#define IFF_LOWER_UP 0x10000  
+#define IFF_DORMANT 0x20000  
+
+#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|  IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
+
+#define IFF_802_1Q_VLAN 0x1  
+#define IFF_EBRIDGE 0x2  
+#define IFF_SLAVE_INACTIVE 0x4  
+#define IFF_MASTER_8023AD 0x8  
+#define IFF_MASTER_ALB 0x10  
+
+#define IF_GET_IFACE 0x0001  
+#define IF_GET_PROTO 0x0002
+
+#define IF_IFACE_V35 0x1000  
+#define IF_IFACE_V24 0x1001  
+#define IF_IFACE_X21 0x1002  
+#define IF_IFACE_T1 0x1003  
+#define IF_IFACE_E1 0x1004  
+#define IF_IFACE_SYNC_SERIAL 0x1005  
+#define IF_IFACE_X21D 0x1006  
+
+#define IF_PROTO_HDLC 0x2000  
+#define IF_PROTO_PPP 0x2001  
+#define IF_PROTO_CISCO 0x2002  
+#define IF_PROTO_FR 0x2003  
+#define IF_PROTO_FR_ADD_PVC 0x2004  
+#define IF_PROTO_FR_DEL_PVC 0x2005  
+#define IF_PROTO_X25 0x2006  
+#define IF_PROTO_HDLC_ETH 0x2007  
+#define IF_PROTO_FR_ADD_ETH_PVC 0x2008  
+#define IF_PROTO_FR_DEL_ETH_PVC 0x2009  
+#define IF_PROTO_FR_PVC 0x200A  
+#define IF_PROTO_FR_ETH_PVC 0x200B
+#define IF_PROTO_RAW 0x200C  
+
+enum {
+ IF_OPER_UNKNOWN,
+ IF_OPER_NOTPRESENT,
+ IF_OPER_DOWN,
+ IF_OPER_LOWERLAYERDOWN,
+ IF_OPER_TESTING,
+ IF_OPER_DORMANT,
+ IF_OPER_UP,
+};
+
+enum {
+ IF_LINK_MODE_DEFAULT,
+ IF_LINK_MODE_DORMANT,
+};
+
+struct ifmap
+{
+ unsigned long mem_start;
+ unsigned long mem_end;
+ unsigned short base_addr;
+ unsigned char irq;
+ unsigned char dma;
+ unsigned char port;
+
+};
+
+struct if_settings
+{
+ unsigned int type;
+ unsigned int size;
+ union {
+
+ 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;
+
+ sync_serial_settings __user *sync;
+ te1_settings __user *te1;
+ } ifs_ifsu;
+};
+
+struct ifreq
+{
+#define IFHWADDRLEN 6
+ union
+ {
+ char ifrn_name[IFNAMSIZ];
+ } 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];
+ char ifru_newname[IFNAMSIZ];
+ void __user * ifru_data;
+ struct if_settings ifru_settings;
+ } ifr_ifru;
+};
+
+#define ifr_name ifr_ifrn.ifrn_name  
+#define ifr_hwaddr ifr_ifru.ifru_hwaddr  
+#define ifr_addr ifr_ifru.ifru_addr  
+#define ifr_dstaddr ifr_ifru.ifru_dstaddr  
+#define ifr_broadaddr ifr_ifru.ifru_broadaddr  
+#define ifr_netmask ifr_ifru.ifru_netmask  
+#define ifr_flags ifr_ifru.ifru_flags  
+#define ifr_metric ifr_ifru.ifru_ivalue  
+#define ifr_mtu ifr_ifru.ifru_mtu  
+#define ifr_map ifr_ifru.ifru_map  
+#define ifr_slave ifr_ifru.ifru_slave  
+#define ifr_data ifr_ifru.ifru_data  
+#define ifr_ifindex ifr_ifru.ifru_ivalue  
+#define ifr_bandwidth ifr_ifru.ifru_ivalue  
+#define ifr_qlen ifr_ifru.ifru_ivalue  
+#define ifr_newname ifr_ifru.ifru_newname  
+#define ifr_settings ifr_ifru.ifru_settings  
+
+struct ifconf
+{
+ int ifc_len;
+ union
+ {
+ char __user *ifcu_buf;
+ struct ifreq __user *ifcu_req;
+ } ifc_ifcu;
+};
+#define ifc_buf ifc_ifcu.ifcu_buf  
+#define ifc_req ifc_ifcu.ifcu_req  
+
+#endif