133 lines
4.5 KiB
C
133 lines
4.5 KiB
C
/****************************************************************************
|
|
* netutils/netlib/netlib_setmacaddr.c
|
|
*
|
|
* Copyright (C) 2007-2009, 2011-2012, 2017 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/socket.h>
|
|
#include <sys/ioctl.h>
|
|
#include <stdint.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <net/if.h>
|
|
|
|
#include "netutils/netlib.h"
|
|
|
|
#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
/* The address family that we used to create the socket and in the IOCTL
|
|
* data really does not matter. It should, however, be valid in the current
|
|
* configuration.
|
|
*/
|
|
|
|
#if defined(CONFIG_NET_IPv4)
|
|
# define PF_FAMILY PF_INET
|
|
# define AF_FAMILY AF_INET
|
|
#elif defined(CONFIG_NET_IPv6)
|
|
# define PF_FAMILY PF_INET6
|
|
# define AF_FAMILY AF_INET6
|
|
#elif defined(CONFIG_NET_PKT)
|
|
# define PF_FAMILY PF_PACKET
|
|
# define AF_FAMILY AF_PACKET
|
|
#elif defined(CONFIG_NET_IEEE802154)
|
|
# define PF_FAMILY PF_IEEE802154
|
|
# define AF_FAMILY AF_IEEE802154
|
|
#elif defined(CONFIG_NET_USRSOCK)
|
|
# define PF_FAMILY PF_INET
|
|
# define AF_FAMILY AF_INET
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: netlib_setmacaddr
|
|
*
|
|
* Description:
|
|
* Set the network driver MAC address
|
|
*
|
|
* Parameters:
|
|
* ifname The name of the interface to use
|
|
* macaddr MAC address to set, size must be IFHWADDRLEN
|
|
*
|
|
* Return:
|
|
* 0 on success; -1 on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
int netlib_setmacaddr(const char *ifname, const uint8_t *macaddr)
|
|
{
|
|
int ret = ERROR;
|
|
|
|
if (ifname && macaddr)
|
|
{
|
|
/* Get a socket (only so that we get access to the INET subsystem) */
|
|
|
|
int sockfd = socket(PF_FAMILY, NETLIB_SOCK_TYPE, 0);
|
|
if (sockfd >= 0)
|
|
{
|
|
struct ifreq req;
|
|
|
|
/* Put the driver name into the request */
|
|
|
|
strncpy(req.ifr_name, ifname, IFNAMSIZ);
|
|
|
|
/* Put the new MAC address into the request */
|
|
|
|
req.ifr_hwaddr.sa_family = AF_FAMILY;
|
|
memcpy(&req.ifr_hwaddr.sa_data, macaddr, IFHWADDRLEN);
|
|
|
|
/* Perform the ioctl to set the MAC address */
|
|
|
|
ret = ioctl(sockfd, SIOCSIFHWADDR, (unsigned long)&req);
|
|
close(sockfd);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */
|