Function netdev_low_level_set_netmask

components/net/netdev/src/netdev.c:908–931

* This function will set network interface device netmask address. * @NOTE it can only be called in the network interface device driver. * * @param netdev the network interface device to change * @param netmask the new netmask address */

 * @param netmask the new netmask address
 */
void netdev_low_level_set_netmask(struct netdev *netdev, const ip_addr_t *netmask)
{
    RT_ASSERT(netmask);

    if (netdev && ip_addr_cmp(&(netdev->netmask), netmask) == 0)
    {
        ip_addr_copy(netdev->netmask, *netmask);

#ifdef RT_USING_SAL
        /* set network interface device flags to internet up */
        if (netdev_is_up(netdev) && netdev_is_link_up(netdev) &&
                !ip_addr_isany(&(netdev->ip_addr)))
        {
            sal_check_netdev_internet_up(netdev);
        }
#endif /* RT_USING_SAL */

        /* execute netmask address change callback function */
        if (netdev->addr_callback)
        {
            netdev->addr_callback(netdev, NETDEV_CB_ADDR_NETMASK);
        }
    }
}

/**
 * This function will set network interface device gateway address.