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Add a user interface to manage the routing table
This commit is contained in:
Gregory Nutt
+7
-1
@@ -1,7 +1,7 @@
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############################################################################
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# libc/net/Make.defs
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#
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# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
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# Copyright (C) 2011-2013 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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@@ -38,6 +38,12 @@
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CSRCS += lib_etherntoa.c lib_htons.c lib_htonl.c lib_inetaddr.c
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CSRCS += lib_inetntoa.c lib_inetntop.c lib_inetpton.c
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# Routing table support
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ifeq ($(CONFIG_NET_ROUTE),y)
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CSRCS += lib_addroute.c lib_delroute.c
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endif
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# Add the net directory to the build
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DEPPATH += --dep-path net
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@@ -0,0 +1,90 @@
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/***************************************************************************
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* libc/net/lib_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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* Compilation Switches
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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 <sys/socket.h>
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#include <sys/ioctl.h>
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#include <stdint.h>
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#include <net/route.h>
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/***************************************************************************
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* Global 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. This is just a convenience
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* wrapper for the SIOCADDRT ioctl call.
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*
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* Parameters:
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* sockfd - Any socket descriptor
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* target - Target address (required)
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* netmask - Network mask defining the sub-net (required)
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* gateway - Gateway address associated with the hop (optional)
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* ifno - Interface number, e.g., the 0 in "eth0"
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*
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* Returned Value:
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* OK on success; -1 on failure with the errno variable set appropriately.
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*
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****************************************************************************/
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int addroute(int sockfd, FAR struct sockaddr_storage *target,
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FAR struct sockaddr_storage *netmask,
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FAR struct sockaddr_storage *gateway, int ifno)
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{
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struct rtentry entry;
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/* Set up the rtentry structure */
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entry.rt_ifno = ifno; /* Interface number, e.g., the 0 in "eth0" */
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entry.rt_target = target; /* Target address */
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entry.rt_netmask = netmask; /* Network mask defining the sub-net */
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entry.rt_gateway = gateway; /* Gateway address associated with the hop */
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/* Then perform the ioctl */
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return ioctl(sockfd, SIOCADDRT, (unsigned long)((uintptr_t)&entry));
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}
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@@ -0,0 +1,88 @@
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/***************************************************************************
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* libc/net/lib_delroute.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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* Compilation Switches
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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 <sys/socket.h>
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#include <sys/ioctl.h>
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#include <stdint.h>
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#include <net/route.h>
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/***************************************************************************
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* Global Functions
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***************************************************************************/
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/****************************************************************************
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* Function: net_delroute
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*
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* Description:
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* Add a new route to the routing table. This is just a convenience
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* wrapper for the SIOCADDRT ioctl call.
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*
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* Parameters:
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* sockfd - Any socket descriptor
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* target - Target address (required)
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* netmask - Network mask defining the sub-net (required)
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*
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* Returned Value:
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* OK on success; -1 on failure with the errno variable set appropriately.
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*
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****************************************************************************/
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int delroute(int sockfd, FAR struct sockaddr_storage *target,
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FAR struct sockaddr_storage *netmask)
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{
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struct rtentry entry;
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/* Set up the rtentry structure */
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entry.rt_target = target; /* Target address */
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entry.rt_netmask = netmask; /* Network mask defining the sub-net */
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entry.rt_ifno = 0; /* (not used for deletion) */
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entry.rt_gateway = NULL; /* (not used for deletion) */
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/* Then perform the ioctl */
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return ioctl(sockfd, SIOCDELRT, (unsigned long)((uintptr_t)&entry));
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}
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