tun: export skb_array
This patch exports skb_array through tun_get_skb_array(). Caller can
then manipulate skb array directly.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index bbd707b..3cbfc5c 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -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);