DDE - The L4 Device Driver Environment: net.c Source File

00001 /******************************************************************************
00002  * DDELinux networking utilities.                                             *
00003  *                                                                            *
00004  * Bjoern Doebel <doebel@tudos.org>                                           *
00005  *                                                                            *
00006  * (c) 2005 - 2007 Technische Universitaet Dresden                            *
00007  * This file is part of DROPS, which is distributed under the terms of the    *
00008  * GNU General Public License 2. Please see the COPYING file for details.     *
00009  ******************************************************************************/
00010 
00011 #include <l4/dde/linux26/dde26_net.h>
00012 
00013 #include <linux/kernel.h>
00014 #include <linux/skbuff.h>
00015 
00016 #include "local.h"
00017 
00018 
00019 /* Callback function to be called if a network packet arrives and needs to
00020  * be handled by netif_rx() or netif_receive_skb()
00021  */
00022 linux_rx_callback l4dde26_rx_callback = NULL;
00023 
00024 
00025 /* Register a netif_rx callback function.
00026  *
00027  * \return pointer to old callback function
00028  */
00029 linux_rx_callback l4dde26_register_rx_callback(linux_rx_callback cb)
00030 {
00031         linux_rx_callback old = l4dde26_rx_callback;
00032         l4dde26_rx_callback = cb;
00033         DEBUG_MSG("New rx callback @ %p.", cb);
00034 
00035         return old;
00036 }