157 lines
4.6 KiB
C
157 lines
4.6 KiB
C
/****************************************************************************
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* net/netdev/netdev_lladdrsize.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <net/if.h>
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#include <nuttx/net/net.h>
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#include <nuttx/net/netdev.h>
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#include <nuttx/net/radiodev.h>
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#include <nuttx/net/bluetooth.h>
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#include <nuttx/net/sixlowpan.h>
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#include "netdev/netdev.h"
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: netdev_pktradio_addrlen
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*
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* Description:
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* Returns the size of the node address associated with a packet radio.
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* This is probably CONFIG_PKTRADIO_ADDRLEN but we cannot be sure in the
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* case that there are multiple packet radios. In that case, we have to
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* query the radio for its address length.
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*
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* Input Parameters:
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* dev - A reference to the device of interest
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*
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* Returned Value:
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* The size of the MAC address associated with this radio
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*
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****************************************************************************/
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#if defined(CONFIG_NET_6LOWPAN) && (defined(CONFIG_WIRELESS_PKTRADIO) || \
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defined(CONFIG_NET_BLUETOOTH))
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static inline int netdev_pktradio_addrlen(FAR struct net_driver_s *dev)
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{
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FAR struct radio_driver_s *radio = (FAR struct radio_driver_s *)dev;
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struct radiodev_properties_s properties;
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int ret;
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DEBUGASSERT(radio != NULL && radio->r_properties != NULL);
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ret = radio->r_properties(radio, &properties);
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if (ret < 0)
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{
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return ret;
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}
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return properties.sp_addrlen;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: netdev_lladdrsize
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*
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* Description:
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* Returns the size of the MAC address associated with a network device.
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*
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* Input Parameters:
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* dev - A reference to the device of interest
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*
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* Returned Value:
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* The size of the MAC address associated with this device
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*
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****************************************************************************/
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int netdev_lladdrsize(FAR struct net_driver_s *dev)
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{
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DEBUGASSERT(dev != NULL);
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/* Get the length of the address for this link layer type */
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switch (dev->d_lltype)
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{
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#ifdef CONFIG_NET_ETHERNET
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case NET_LL_ETHERNET:
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case NET_LL_IEEE80211:
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{
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/* Size of the Ethernet MAC address */
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return IFHWADDRLEN;
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}
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#endif
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#ifdef CONFIG_NET_6LOWPAN
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#ifdef CONFIG_WIRELESS_IEEE802154
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case NET_LL_IEEE802154:
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{
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/* 6LoWPAN can be configured to use either extended or short
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* addressing.
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*/
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#ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
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return NET_6LOWPAN_EADDRSIZE;
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#else
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return NET_6LOWPAN_SADDRSIZE;
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#endif
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}
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#endif /* CONFIG_WIRELESS_IEEE802154 */
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#if defined(CONFIG_WIRELESS_PKTRADIO) || defined(CONFIG_WIRELESS_BLUETOOTH)
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#ifdef CONFIG_WIRELESS_PKTRADIO
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case NET_LL_PKTRADIO:
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#endif
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#ifdef CONFIG_WIRELESS_BLUETOOTH
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case NET_LL_BLUETOOTH:
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#endif
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{
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/* Return the size of the packet radio address */
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return netdev_pktradio_addrlen(dev);
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}
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#endif /* CONFIG_WIRELESS_PKTRADIO || CONFIG_WIRELESS_BLUETOOTH */
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#endif /* CONFIG_NET_6LOWPAN */
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default:
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{
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/* The link layer type associated has no address */
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return 0;
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}
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}
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}
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