#ifndef __DDE_26_NET_H
#define __DDE_26_NET_H

#include <linux/skbuff.h>
#include <linux/netdevice.h>

/** rx callback function */
typedef int (*linux_rx_callback)(char *, int, struct net_device *);

extern linux_rx_callback l4dde26_rx_callback;

/** Register rx callback function.
 *
 * This registers a function to be a rx callback. Whenever an ethernet packet
 * arrives and is processed by a driver or a softirq, it will end up in either
 * netif_rx() or netif_receive_skb(). Both will finally try to hand this to
 * a DDE user using a previously registered callback.
 *
 * \param cb   new callback function
 * \return     old callback function pointer
 */
linux_rx_callback l4dde26_register_rx_callback(linux_rx_callback cb);


/** Run callback function.
 */
static inline int l4dde26_do_rx_callback(struct sk_buff *s)
{
	if (l4dde26_rx_callback != NULL) {
		int ret;
		skb_push(s, s->dev->hard_header_len);
		ret = l4dde26_rx_callback(s->data, s->len, s->dev);
		dev_kfree_skb_any(s);
		return ret;
	}

	return 0;
}

#endif