121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
/****************************************************************************
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* net/net_addroute.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 <nuttx/net/route.h>
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#include "net_internal.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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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Function: net_available
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*
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* Description:
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* Return 1 if the route is available
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*
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* Parameters:
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* route - The next route to examine
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* arg - The new route entry (cast to void*)
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*
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* Returned Value:
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* OK on success; Negated errno on failure.
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*
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****************************************************************************/
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static int net_available(FAR struct net_route_s *route, FAR void *arg)
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{
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if (!route->inuse)
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{
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memcpy(route, arg, sizeof(struct net_route_s));
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return 1;
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}
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return 0;
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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_addroute
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*
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* Description:
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* Add a new route to the routing table
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*
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* Parameters:
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*
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* Returned Value:
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* OK on success; Negated errno on failure.
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*
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****************************************************************************/
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int net_addroute(uip_ipaddr_t target, uip_ipaddr_t netmask,
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uip_ipaddr_t gateway, int devno)
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{
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struct net_route_s route;
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/* Format the new route table entry */
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route.inuse = true;
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route.minor = devno;
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uip_ipaddr_copy(route.target, target);
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uip_ipaddr_copy(route.netmask, netmask);
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uip_ipaddr_copy(route.gateway, gateway);
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/* Then add the new entry to the table */
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return net_foreachroute(net_available, &route) ? OK : -EAGAIN;
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}
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#endif /* CONFIG_NET && CONFIG_NET_SOCKOPTS && !CONFIG_DISABLE_CLOCK */
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