Commit 83339c6b authored by Jason Wang's avatar Jason Wang Committed by David S. Miller
Browse files

tun: export skb_array 



This patch exports skb_array through tun_get_skb_array(). Caller can
then manipulate skb array directly.

Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3528c1a5

drivers/net/tun.c

+13 −0
Original line number Diff line number Diff line
@@ -2626,6 +2626,19 @@ struct socket *tun_get_socket(struct file *file) 
}

EXPORT_SYMBOL_GPL(tun_get_socket);



struct skb_array *tun_get_skb_array(struct file *file)

{

	struct tun_file *tfile;



	if (file->f_op != &tun_fops)

		return ERR_PTR(-EINVAL);

	tfile = file->private_data;

	if (!tfile)

		return ERR_PTR(-EBADFD);

	return &tfile->tx_array;

}

EXPORT_SYMBOL_GPL(tun_get_skb_array);



module_init(tun_init);

module_exit(tun_cleanup);

MODULE_DESCRIPTION(DRV_DESCRIPTION);

include/linux/if_tun.h

+5 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 


#if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE)

struct socket *tun_get_socket(struct file *);

struct skb_array *tun_get_skb_array(struct file *file);

#else

#include <linux/err.h>

#include <linux/errno.h>
@@ -28,5 +29,9 @@ static inline struct socket *tun_get_socket(struct file *f) 
{

	return ERR_PTR(-EINVAL);

}

static inline struct skb_array *tun_get_skb_array(struct file *f)

{

	return ERR_PTR(-EINVAL);

}

#endif /* CONFIG_TUN */

#endif /* __IF_TUN_H */