261 lines
7.6 KiB
C
261 lines
7.6 KiB
C
/****************************************************************************
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* net/netdev-ioctl.c
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*
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* Copyright (C) 2007 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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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/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/net.h>
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#include <net/if.h>
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#include <net/ethernet.h>
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#include <net/uip/uip-arch.h>
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#include <net/uip/uip.h>
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#include "net-internal.h"
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/****************************************************************************
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* 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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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ioctl_getipaddr / ioctl_setipaddr
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*
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* Description:
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* Copy IP addresses into and out of device structure
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*
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****************************************************************************/
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static void ioctl_getipaddr(struct sockaddr *outaddr, uip_ipaddr_t *inaddr)
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{
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#ifdef CONFIG_NET_IPv6
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#error " big enough for IPv6 address"
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struct sockaddr_in6 *dest = (struct sockaddr_in6 *)outaddr;
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dest->sin_family = AF_INET6;
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dest->sin_port = 0;
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memcpy(dest->sin6_addr.in6_u.u6_addr8, inaddr, 16);
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#else
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struct sockaddr_in *dest = (struct sockaddr_in *)outaddr;
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dest->sin_family = AF_INET;
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dest->sin_port = 0;
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dest->sin_addr.s_addr = *inaddr;
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#endif
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}
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static void ioctl_setipaddr(uip_ipaddr_t *outaddr, struct sockaddr *inaddr)
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{
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#ifdef CONFIG_NET_IPv6
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struct sockaddr_in6 *src = (struct sockaddr_in6 *)inaddr;
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memcpy(outaddr, src->sin6_addr.in6_u.u6_addr8, 16);
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#else
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struct sockaddr_in *src = (struct sockaddr_in *)inaddr;
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*outaddr = src->sin_addr.s_addr;
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#endif
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}
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static void ioctl_ifup(FAR struct uip_driver_s *dev)
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{
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if (dev->d_ifup)
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{
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dev->d_ifup(dev);
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}
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}
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static void ioctl_ifdown(FAR struct uip_driver_s *dev)
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{
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if (dev->d_ifdown)
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{
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dev->d_ifdown(dev);
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}
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}
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/****************************************************************************
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* Global Functions
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****************************************************************************/
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/****************************************************************************
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* Name: netdev_ioctl
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*
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* Description:
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* Perform network device specific operations.
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*
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* Parameters:
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* sockfd Socket descriptor of device
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* cmd The ioctl command
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* req The argument of the ioctl cmd
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*
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* Return:
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* >=0 on success (positive non-zero values are cmd-specific)
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* -1 on failure withi errno set properly:
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*
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* EBADF
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* 'sockfd' is not a valid descriptor.
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* EFAULT
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* 'req' references an inaccessible memory area.
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* EINVAL
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* 'cmd' or 'req' is not valid.
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* ENOTTY
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* 'sockfd' is not associated with a network device.
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* ENOTTY
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* The specified request does not apply to the kind of object that the
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* descriptor 'sockfd' references.
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*
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****************************************************************************/
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int netdev_ioctl(int sockfd, int cmd, struct ifreq *req)
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{
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FAR struct socket *psock = sockfd_socket(sockfd);
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FAR struct uip_driver_s *dev;
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int err;
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if (!_SIOCVALID(cmd) || !req)
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{
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err = EINVAL;
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goto errout;
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}
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/* Verify that the sockfd corresponds to valid, allocated socket */
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if (!psock || psock->s_crefs <= 0)
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{
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err = EBADF;
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goto errout;
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}
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/* Find the network device associated with the device name
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* in the request data.
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*/
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dev = netdev_findbyname(req->ifr_name);
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if (!dev)
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{
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err = EINVAL;
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goto errout;
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}
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/* Execute the command */
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switch (cmd)
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{
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case SIOCGIFADDR: /* Get IP address */
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ioctl_getipaddr(&req->ifr_addr, &dev->d_ipaddr);
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break;
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case SIOCSIFADDR: /* Set IP address */
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ioctl_ifdown(dev);
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ioctl_setipaddr(&dev->d_ipaddr, &req->ifr_addr);
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ioctl_ifup(dev);
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break;
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case SIOCGIFDSTADDR: /* Get P-to-P address */
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ioctl_getipaddr(&req->ifr_dstaddr, &dev->d_draddr);
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break;
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case SIOCSIFDSTADDR: /* Set P-to-P address */
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ioctl_setipaddr(&dev->d_draddr, &req->ifr_dstaddr);
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break;
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case SIOCGIFNETMASK: /* Get network mask */
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ioctl_getipaddr(&req->ifr_addr, &dev->d_netmask);
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break;
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case SIOCSIFNETMASK: /* Set network mask */
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ioctl_setipaddr(&dev->d_netmask, &req->ifr_addr);
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break;
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case SIOCGIFMTU: /* Get MTU size */
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req->ifr_mtu = CONFIG_NET_BUFSIZE;
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break;
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case SIOCGIFHWADDR: /* Get hardware address */
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req->ifr_hwaddr.sa_family = AF_INETX;
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memcpy(req->ifr_hwaddr.sa_data, dev->d_mac.ether_addr_octet, IFHWADDRLEN);
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break;
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case SIOCSIFHWADDR: /* Set hardware address */
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req->ifr_hwaddr.sa_family = AF_INETX;
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memcpy(dev->d_mac.ether_addr_octet, req->ifr_hwaddr.sa_data, IFHWADDRLEN);
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break;
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case SIOCDIFADDR: /* Delete IP address */
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ioctl_ifdown(dev);
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memset(&dev->d_ipaddr, 0, sizeof(uip_ipaddr_t));
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break;
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case SIOCGIFCOUNT: /* Get number of devices */
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req->ifr_count = netdev_count();
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err = ENOSYS;
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break;
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case SIOCGIFBRDADDR: /* Get broadcast IP address */
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case SIOCSIFBRDADDR: /* Set broadcast IP address */
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err = ENOSYS;
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goto errout;
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default:
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err = EINVAL;
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goto errout;
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}
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return OK;
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errout:
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*get_errno_ptr() = err;
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return ERROR;
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}
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#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */
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