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Add a user interface to manage the routing table

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This commit is contained in:
Gregory Nutt 2013-10-02 10:51:48 -06:00
parent fee65851ca
commit 0ff3852b2f
13 changed files with 420 additions and 43 deletions
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64
include/net/route.h
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@ -56,27 +56,16 @@
* Public Types
****************************************************************************/
struct ifnet
{
uint16_t if_index; /* Interface number */
uint16_t if_mtu; /* MTU of interface */
struct sockaddr_in if_addr; /* Address of interface */
struct sockaddr_in if_netmask; /* Netmask of if_addr */
};
/* This structure describes the route information passed with the SIOCADDRT
* and SIOCDELRT ioctl commands (see include/nuttx/net/ioctl.h).
*/
struct ortentry
struct rtentry
{
uint32_t rt_hash; /* To speed lookups */
struct sockaddr rt_dst; /* Key */
struct sockaddr rt_gateway; /* Value */
uint16_t rt_flags; /* Up/down?, host/net */
uint16_t rt_refcnt; /* Number of held references */
uint32_t rt_use; /* Raw number of packets forwarded */
struct ifnet *rt_ifp; /* The answer: interface to use */
uint16_t rt_ifno; /* Interface number, e.g., the 0 in "eth0" */
FAR struct sockaddr_storage *rt_target; /* Target address */
FAR struct sockaddr_storage *rt_netmask; /* Network mask defining the sub-net */
FAR struct sockaddr_storage *rt_gateway; /* Gateway address associated with the hop */
};
/****************************************************************************
@ -95,6 +84,49 @@ extern "C"
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* 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);
/****************************************************************************
* Function: net_delroute
*
* 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)
*
* Returned Value:
* OK on success; -1 on failure with the errno variable set appropriately.
*
****************************************************************************/
int delroute(int sockfd, FAR struct sockaddr_storage *target,
FAR struct sockaddr_storage *netmask);
#undef EXTERN
#ifdef __cplusplus
}