nuttx/include/net/route.h
2024-08-26 01:54:10 +08:00

140 lines
4.7 KiB
C

/****************************************************************************
* include/net/route.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_NET_ROUTE_H
#define __INCLUDE_NET_ROUTE_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <nuttx/net/ioctl.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define RTF_UP 0x0001 /* Route usable. */
#define RTF_GATEWAY 0x0002 /* Destination is a gateway. */
#define RTF_HOST 0x0004 /* Host entry (net otherwise). */
/****************************************************************************
* Public Types
****************************************************************************/
/* This structure describes the route information passed with the SIOCADDRT
* and SIOCDELRT ioctl commands (see include/nuttx/net/ioctl.h).
*/
struct rtentry
{
struct sockaddr_storage rt_dst; /* Address of the network */
struct sockaddr_storage rt_gateway; /* Gateway address associated with
* the hop */
struct sockaddr_storage rt_genmask; /* Network mask defining the sub-net */
uint16_t rt_flags;
FAR char *rt_dev; /* Forcing the device at add. */
};
struct in6_rtmsg
{
struct in6_addr rtmsg_dst;
struct in6_addr rtmsg_src;
struct in6_addr rtmsg_gateway;
uint32_t rtmsg_type;
uint16_t rtmsg_dst_len;
uint16_t rtmsg_src_len;
uint32_t rtmsg_metric;
unsigned long int rtmsg_info;
uint32_t rtmsg_flags;
int rtmsg_ifindex;
};
/****************************************************************************
* Public Data
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: net_addroute
*
* Description:
* Add a new route to the routing table. This is just a convenience
* wrapper for the SIOCADDRT ioctl call.
*
* Input Parameters:
* sockfd - Any socket descriptor
* target - Target address on external network(required)
* netmask - Network mask defining the external network (required)
* router - Router address that on our network that can forward to the
* external network.
* len - The address struct length.
*
* Returned Value:
* OK on success; -1 on failure with the errno variable set appropriately.
*
****************************************************************************/
int addroute(int sockfd, FAR void *target, FAR void *netmask,
FAR void *router, socklen_t len);
/****************************************************************************
* Name: net_delroute
*
* Description:
* Delete a route from the routing table. This is just a convenience
* wrapper for the SIOCDELRT ioctl call.
*
* Input Parameters:
* sockfd - Any socket descriptor
* target - Target address on the remote network (required)
* netmask - Network mask defining the external network (required)
* len - The address struct length.
*
* Returned Value:
* OK on success; -1 on failure with the errno variable set appropriately.
*
****************************************************************************/
int delroute(int sockfd, FAR void *target, FAR void *netmask, socklen_t len);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __INCLUDE_NET_ROUTE_H */