incubator-nuttx/net/neighbor/neighbor_update.c

78 lines
3.0 KiB
C

/****************************************************************************
* net/neighbor/neighbor_update.c
*
* Copyright (C) 2007-2009, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* A leverage of logic from uIP which also has a BSD style license
*
* Copyright (c) 2006, Swedish Institute of Computer Science. All rights
* reserved.
* Author: Adam Dunkels <adam@sics.se>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "neighbor/neighbor.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: neighbor_update
*
* Description:
* Reset time on the Neighbor Table entry associated with the IPv6 address.
* This makes the associated entry the most recently used and not a
* candidate for removal.
*
* Input Parameters:
* ipaddr - The IPv6 address of the entry to be updated
*
* Returned Value:
* None
*
****************************************************************************/
void neighbor_update(const net_ipv6addr_t ipaddr)
{
struct neighbor_entry *neighbor;
neighbor = neighbor_findentry(ipaddr);
if (neighbor != NULL)
{
neighbor->ne_time = 0;
}
}