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114 lines
3.9 KiB
114 lines
3.9 KiB
/**************************************************************************** |
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* netutils/uiplib/uip_setmacaddr.c |
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* |
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* Copyright (C) 2007-2009, 2011-2012 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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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0 |
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#include <sys/socket.h> |
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#include <sys/ioctl.h> |
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#include <stdint.h> |
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#include <unistd.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <netinet/in.h> |
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#include <net/if.h> |
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#include <apps/netutils/uiplib.h> |
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/**************************************************************************** |
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* Pre-processor Definitions |
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****************************************************************************/ |
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#ifdef CONFIG_NET_IPv6 |
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# define AF_INETX AF_INET6 |
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#else |
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# define AF_INETX AF_INET |
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#endif |
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/**************************************************************************** |
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* Global Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: uip_setmacaddr |
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* |
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* Description: |
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* Set the network driver MAC address |
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* |
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* Parameters: |
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* ifname The name of the interface to use |
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* macaddr MAC address to set, size must be IFHWADDRLEN |
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* |
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* Return: |
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* 0 on sucess; -1 on failure |
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* |
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****************************************************************************/ |
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int uip_setmacaddr(const char *ifname, const uint8_t *macaddr) |
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{ |
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int ret = ERROR; |
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if (ifname && macaddr) |
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{ |
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/* Get a socket (only so that we get access to the INET subsystem) */ |
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int sockfd = socket(PF_INET, UIPLIB_SOCK_IOCTL, 0); |
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if (sockfd >= 0) |
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{ |
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struct ifreq req; |
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/* Put the driver name into the request */ |
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strncpy(req.ifr_name, ifname, IFNAMSIZ); |
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/* Put the new MAC address into the request */ |
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req.ifr_hwaddr.sa_family = AF_INETX; |
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memcpy(&req.ifr_hwaddr.sa_data, macaddr, IFHWADDRLEN); |
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/* Perforom the ioctl to set the MAC address */ |
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ret = ioctl(sockfd, SIOCSIFHWADDR, (unsigned long)&req); |
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close(sockfd); |
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} |
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} |
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return ret; |
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} |
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#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */
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