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/***************************************************************************
* libc/net/lib_addroute.c
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
***************************************************************************/
/***************************************************************************
* Compilation Switches
***************************************************************************/
/***************************************************************************
* Included Files
***************************************************************************/
#include <nuttx/config.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <stdint.h>
#include <net/route.h>
/***************************************************************************
* Global Functions
***************************************************************************/
/****************************************************************************
* Function: net_addroute
*
* Description:
* Add a new route to the routing table. This is just a convenience
* wrapper for the SIOCADDRT ioctl call.
*
* Parameters:
* sockfd - Any socket descriptor
* target - Target address (required)
* netmask - Network mask defining the sub-net (required)
* gateway - Gateway address associated with the hop (optional)
* ifno - Interface number, e.g., the 0 in "eth0"
*
* Returned Value:
* OK on success; -1 on failure with the errno variable set appropriately.
*
****************************************************************************/
int addroute(int sockfd, FAR struct sockaddr_storage *target,
FAR struct sockaddr_storage *netmask,
FAR struct sockaddr_storage *gateway, int ifno)
{
struct rtentry entry;
/* Set up the rtentry structure */
entry.rt_ifno = ifno; /* Interface number, e.g., the 0 in "eth0" */
entry.rt_target = target; /* Target address */
entry.rt_netmask = netmask; /* Network mask defining the sub-net */
entry.rt_gateway = gateway; /* Gateway address associated with the hop */
/* Then perform the ioctl */
return ioctl(sockfd, SIOCADDRT, (unsigned long)((uintptr_t)&entry));
}
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