1 files changed, 17 insertions, 0 deletions

diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
index 3f5fd523b49d..1350a246893a 100644
--- a/include/linux/if_tun.h
+++ b/include/linux/if_tun.h
@@ -18,6 +18,7 @@
 
 #include <linux/types.h>
 #include <linux/if_ether.h>
+#include <linux/filter.h>
 
 /* Read queue size */
 #define TUN_READQ_SIZE  500
@@ -48,6 +49,8 @@
 #define TUNGETIFF      _IOR('T', 210, unsigned int)
 #define TUNGETSNDBUF   _IOR('T', 211, int)
 #define TUNSETSNDBUF   _IOW('T', 212, int)
+#define TUNATTACHFILTER _IOW('T', 213, struct sock_fprog)
+#define TUNDETACHFILTER _IOW('T', 214, struct sock_fprog)
 
 /* TUNSETIFF ifr flags */
 #define IFF_TUN         0x0001
@@ -86,4 +89,18 @@ struct tun_filter {
         __u8   addr[0][ETH_ALEN];
 };
 
+#ifdef __KERNEL__
+#if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE)
+struct socket *tun_get_socket(struct file *);
+#else
+#include <linux/err.h>
+#include <linux/errno.h>
+struct file;
+struct socket;
+static inline struct socket *tun_get_socket(struct file *f)
+{
+        return ERR_PTR(-EINVAL);
+}
+#endif /* CONFIG_TUN */
+#endif /* __KERNEL__ */
 #endif /* __IF_TUN_H */