incubator-nuttx/net/sixlowpan/sixlowpan_globals.c

/****************************************************************************
 * net/sixlowpan/sixlowpan_globals.c
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include "sixlowpan/sixlowpan_internal.h"

#ifdef CONFIG_NET_6LOWPAN

/****************************************************************************
 * Public Data
 ****************************************************************************/

/* The following data values are used to hold intermediate settings while
 * processing IEEE802.15.4 frames.  These globals are shared with incoming
 * and outgoing frame processing and possibly with multiple IEEE802.15.4 MAC
 * devices.  The network lock provides exclusive use of these globals
 * during that processing.
 */

/* g_uncomp_hdrlen is the length of the headers before compression (if HC2
 * is used this includes the UDP header in addition to the IP header).
 */

uint8_t g_uncomp_hdrlen;

/* g_frame_hdrlen is the total length of (the processed) 6lowpan headers
 * (fragment headers, IPV6 or HC1, HC2, and HC1 and HC2 non compressed
 * fields).
 */

uint8_t g_frame_hdrlen;

/****************************************************************************
 * Public Functions
 ****************************************************************************/

#endif /* CONFIG_NET_6LOWPAN */