103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
/****************************************************************************
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* net/net_foreachroute.c
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <stdint.h>
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#include <errno.h>
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#include <arch/irq.h>
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#include "net_internal.h"
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#include "net_route.h"
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#if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE)
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Function: net_foreachroute
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*
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* Description:
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* Traverse the route table
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*
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* Parameters:
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*
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* Returned Value:
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* 0 if in use; 1 if avaialble and the new entry was added
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*
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****************************************************************************/
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int net_foreachroute(route_handler_t handler, FAR void *arg)
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{
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FAR struct net_route_s *route;
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FAR struct net_route_s *next;
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uip_lock_t save;
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int ret = 0;
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/* Prevent concurrent access to the routing table */
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save = uip_lock();
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/* Visit each entry in the routing table */
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for (route = (FAR struct net_route_s *)g_routes.head; route; route = next)
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{
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/* Get the next entry in the to visit. We do this BEFORE calling the
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* handler because the hanlder may delete this entry.
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*/
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next = route->flink;
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ret = handler(route, arg);
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}
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/* Unlock uIP */
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uip_unlock(save);
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return ret;
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}
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#endif /* CONFIG_NET && CONFIG_NET_ROUTE */
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