mirror of
https://github.com/apache/nuttx.git
synced 2026-05-12 17:58:10 +08:00
Add a user interface to manage the routing table
This commit is contained in:
Gregory Nutt
+48
-16
@@ -56,27 +56,16 @@
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* Public Types
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****************************************************************************/
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struct ifnet
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{
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uint16_t if_index; /* Interface number */
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uint16_t if_mtu; /* MTU of interface */
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struct sockaddr_in if_addr; /* Address of interface */
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struct sockaddr_in if_netmask; /* Netmask of if_addr */
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};
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/* This structure describes the route information passed with the SIOCADDRT
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* and SIOCDELRT ioctl commands (see include/nuttx/net/ioctl.h).
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*/
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struct ortentry
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struct rtentry
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{
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uint32_t rt_hash; /* To speed lookups */
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struct sockaddr rt_dst; /* Key */
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struct sockaddr rt_gateway; /* Value */
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uint16_t rt_flags; /* Up/down?, host/net */
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uint16_t rt_refcnt; /* Number of held references */
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uint32_t rt_use; /* Raw number of packets forwarded */
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struct ifnet *rt_ifp; /* The answer: interface to use */
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uint16_t rt_ifno; /* Interface number, e.g., the 0 in "eth0" */
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FAR struct sockaddr_storage *rt_target; /* Target address */
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FAR struct sockaddr_storage *rt_netmask; /* Network mask defining the sub-net */
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FAR struct sockaddr_storage *rt_gateway; /* Gateway address associated with the hop */
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};
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/****************************************************************************
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@@ -95,6 +84,49 @@ extern "C"
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* Public Function Prototypes
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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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* 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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#undef EXTERN
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#ifdef __cplusplus
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}
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@@ -1,7 +1,7 @@
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/****************************************************************************
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* include/nuttx/net/ioctl.h
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*
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* Copyright (C) 2007-2008, 2010-2012 Gregory Nutt. All rights reserved.
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* Copyright (C) 2007-2008, 2010-2013 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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@@ -92,7 +92,7 @@
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#define SIOCGIPMSFILTER _SIOC(0x0010) /* Retrieve source filter addresses */
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#define SIOCSIPMSFILTER _SIOC(0x0011) /* Set source filter content */
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/* Routing table. Argument is a reference to struct ortentry in
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/* Routing table. Argument is a reference to struct rtentry as defined in
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* include/net/route.h
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*/
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@@ -1,162 +0,0 @@
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/****************************************************************************
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* include/nuttx/net/route.h
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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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#ifndef __INCLUDE_NUTTX_NET_ROUTE_H
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#define __INCLUDE_NUTTX_NET_ROUTE_H
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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 <nuttx/net/uip/uip.h>
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#ifdef CONFIG_NET_ROUTE
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#ifndef CONFIG_NET_MAXROUTES
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# define CONFIG_NET_MAXROUTES 4
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* This structure describes one entry in the routing table */
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struct net_route_s
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{
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bool inuse; /* TRUE: This entry contains a valid route */
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uint8_t minor; /* Ethernet device minor */
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uip_ipaddr_t target; /* The destination network */
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uip_ipaddr_t netmask; /* The network address mask */
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uip_ipaddr_t gateway; /* Route packets via a gateway */
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};
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/* Type of the call out function pointer provided to net_foreachroute() */
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typedef int (*route_handler_t)(FAR struct net_route_s *route, FAR void *arg);
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/* This is the routing table */
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EXTERN struct net_route_s g_routes[CONFIG_NET_MAXROUTES];
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/****************************************************************************
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* Public Function Prototypes
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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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* Function: net_delroute
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*
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* Description:
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* Remove an existing route from 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_delroute(uip_ipaddr_t target, uip_ipaddr_t netmask);
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/****************************************************************************
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* Function: net_findroute
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*
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* Description:
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* Given an IP address, return a copy of the routing table contents
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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_findroute(uip_ipaddr_t target, FAR struct net_route_s *route);
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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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* OK on success; Negated errno on failure.
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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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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_NET_ROUTE */
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#endif /* __INCLUDE_NUTTX_NET_ROUTE_H */
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