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net/netdev: Add support for the SIOCGIFBRDADDR ioctl() command.

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This commit is contained in:
Gregory Nutt 2017-11-22 16:46:46 -06:00
parent a42bdf1ce7
commit e1a1dbb459
1 changed files with 37 additions and 0 deletions
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37
net/netdev/netdev_ioctl.c
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@ -279,6 +279,30 @@ static void ioctl_get_ipv4addr(FAR struct sockaddr *outaddr,
}
#endif
/****************************************************************************
* Name: ioctl_get_ipv4broadcast
*
* Description:
* Return the sub-net broadcast address to user memory.
*
* Input Parameters:
* outaddr - Pointer to the user-provided memory to receive the address.
* inaddr - The source IP address in the device structure.
* netmask - The netmask address mask in the device structure.
*
****************************************************************************/
#ifdef CONFIG_NET_IPv4
static void inline ioctl_get_ipv4broadcast(FAR struct sockaddr *outaddr,
in_addr_t inaddr, in_addr_t netmask)
{
FAR struct sockaddr_in *dest = (FAR struct sockaddr_in *)outaddr;
dest->sin_family = AF_INET;
dest->sin_port = 0;
dest->sin_addr.s_addr = net_ipv4addr_broadcast(inaddr, netmask);
}
#endif
/****************************************************************************
* Name: ioctl_get_ipv6addr
*
@ -627,6 +651,19 @@ static int netdev_ifr_ioctl(FAR struct socket *psock, int cmd,
#ifdef CONFIG_NET_IPv4
case SIOCGIFBRDADDR: /* Get broadcast IP address */
{
dev = netdev_ifr_dev(req);
if (dev)
{
ioctl_get_ipv4broadcast(&req->ifr_broadaddr, dev->d_ipaddr,
dev->d_netmask);
ret = OK;
}
}
break;
#endif
#ifdef CONFIG_NET_IPv4
case SIOCSIFBRDADDR: /* Set broadcast IP address */
{
ret = -ENOSYS;