1 files changed, 93 insertions, 0 deletions

diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
new file mode 100644
index 000000000000..096a85a58ae5
--- /dev/null
+++ b/include/linux/if_tun.h
@@ -0,0 +1,93 @@
+/*
+ *  Universal TUN/TAP device driver.
+ *  Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com>
+ *
+ *  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.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *  GNU General Public License for more details.
+ *
+ *  $Id: if_tun.h,v 1.2 2001/06/01 18:39:47 davem Exp $
+ */
+
+#ifndef __IF_TUN_H
+#define __IF_TUN_H
+
+/* Uncomment to enable debugging */
+/* #define TUN_DEBUG 1 */
+
+#ifdef __KERNEL__
+
+#ifdef TUN_DEBUG
+#define DBG  if(tun->debug)printk
+#define DBG1 if(debug==2)printk
+#else
+#define DBG( a... )
+#define DBG1( a... )
+#endif
+
+struct tun_struct {
+        struct list_head        list;
+        unsigned long           flags;
+        int                     attached;
+        uid_t                   owner;
+
+        wait_queue_head_t       read_wait;
+        struct sk_buff_head     readq;
+
+        struct net_device       *dev;
+        struct net_device_stats stats;
+
+        struct fasync_struct    *fasync;
+
+        unsigned long if_flags;
+        u8 dev_addr[ETH_ALEN];
+        u32 chr_filter[2];
+        u32 net_filter[2];
+
+#ifdef TUN_DEBUG        
+        int debug;
+#endif  
+};
+
+#endif /* __KERNEL__ */
+
+/* Read queue size */
+#define TUN_READQ_SIZE  500
+
+/* TUN device flags */
+#define TUN_TUN_DEV     0x0001  
+#define TUN_TAP_DEV     0x0002
+#define TUN_TYPE_MASK   0x000f
+
+#define TUN_FASYNC      0x0010
+#define TUN_NOCHECKSUM  0x0020
+#define TUN_NO_PI       0x0040
+#define TUN_ONE_QUEUE   0x0080
+#define TUN_PERSIST     0x0100  
+
+/* Ioctl defines */
+#define TUNSETNOCSUM  _IOW('T', 200, int) 
+#define TUNSETDEBUG   _IOW('T', 201, int) 
+#define TUNSETIFF     _IOW('T', 202, int) 
+#define TUNSETPERSIST _IOW('T', 203, int) 
+#define TUNSETOWNER   _IOW('T', 204, int)
+
+/* TUNSETIFF ifr flags */
+#define IFF_TUN         0x0001
+#define IFF_TAP         0x0002
+#define IFF_NO_PI       0x1000
+#define IFF_ONE_QUEUE   0x2000
+
+struct tun_pi {
+        unsigned short flags;
+        unsigned short proto;
+};
+#define TUN_PKT_STRIP   0x0001
+
+#endif /* __IF_TUN_H */