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/****************************************************************************
* hn70ap/apps/libhn70ap/tun.c
*
* Copyright (C) 2018 Sebastien Lorquet. All rights reserved.
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
*
* 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.
*
****************************************************************************/
#include <nuttx/config.h>
#include <sys/ioctl.h>
#include <nuttx/net/tun.h>
#include <hn70ap/tun.h>
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struct iptunnel_s
{
int fd;
pthread_t rxthread;
/*data reception and calling back to the user*/
FAR uint8_t * userbuf;
int userbuflen;
tunrxfunction_f callback;
FAR void * arg;
};
struct iptunnel_s tunnels[2];
/****************************************************************************
* hn70ap_tun_transmit
****************************************************************************/
int hn70ap_tun_transmit(int tunnel, FAR uint8_t *buf, size_t len)
{
if(tunnel != 0 && tunnel != 1)
{
return -1;
}
return write(tunnels[tunnel].fd, buf, len);
}
/****************************************************************************
* hn70ap_tun_rxfunction
****************************************************************************/
int hn70ap_tun_rxfunction(int tunnel, tunrxfunction_f rx, FAR void *arg, FAR uint8_t *userbuf, int userbuflen)
{
if(tunnel != 0 && tunnel != 1)
{
return -1;
}
tunnels[tunnel].userbuf = userbuf;
tunnels[tunnel].userbuflen = userbuflen;
tunnels[tunnel].arg = arg;
tunnels[tunnel].callback = rx;
return OK;
}
/****************************************************************************
* hn70ap_tun_init
****************************************************************************/
int hn70ap_tun_initdevice(char ifname[IFNAMSIZ])
if ((fd = open("/dev/tun", O_RDWR)) < 0)
{
return fd;
}
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TUN;
if (ifname[0])
{
strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
}
if ((errcode = ioctl(fd, TUNSETIFF, (unsigned long)&ifr)) < 0)
{
close(fd);
return errcode;
}
/****************************************************************************
* hn70ap_tun_addroute
****************************************************************************/
int hn70ap_tun_addroute(int fd, in_addr_t destination, int maskbits)
{
}
int hn70ap_tun_init(void)
{
tunnels[0].fd = 0;
tunnels[1].fd = 0;
return 0;
}