Is there any API or Flags in Qt to check available physical network interface/ports on Windows/Linux/MAC OS?

Question

I am trying to get MAC address for all physical ports available on my laptop for Windows/Linux/MAC OS. I also want to check if I can detect physical connection/disconnection of the network cable.

I tried using QNetworkInterface APIs but it is providing me all physical and logical interfaces. I am unable to get how I can differentiate the physical ports. Do we have any flags to do so?

I have tried some code:

    foreach(QNetworkInterface netInterface, QNetworkInterface::allInterfaces())
    {
        if (!(netInterface.flags() & QNetworkInterface::Ethernet))
        {
            return netInterface.hardwareAddress();
        }
    }

Following is the result of Network Interface, name, type and hardware address from my MAC:

(IsUp|IsRunning|CanBroadcast|CanMulticast) "en0" QNetworkInterface::Wifi "XX:XX:XX:XX:XX:XX"<br/>
(IsUp|IsRunning|CanBroadcast|CanMulticast) "p2p0" QNetworkInterface::Wifi "XX:XX:XX:XX:XX:XX"<br/>
(IsUp|IsRunning|CanBroadcast|CanMulticast) "awdl0" QNetworkInterface::Wifi "XX:XX:XX:XX:XX:XX"<br/>
(IsUp|IsRunning|CanBroadcast|CanMulticast) "en1" QNetworkInterface::Ethernet "XX:XX:XX:XX:XX:XX"<br/>
(IsUp|IsRunning|CanBroadcast|CanMulticast) "en2" QNetworkInterface::Ethernet "XX:XX:XX:XX:XX:XX"<br/>
(IsUp|IsRunning|CanBroadcast|CanMulticast) "bridge0" QNetworkInterface::Unknown "XX:XX:XX:XX:XX:XX"

PS: "XX:XX:XX:XX:XX:XX" is their MAC address

Answer 1

I come to the conclusion that Qt cannot get deeper OS details. We need to touch the OS layer to achieve the same.

1. For Windows:

   MIB_IF_ROW2 ifRow; 
   ifRow.InterfaceAndOperStatusFlags.ConnectorPresent
   

   Check this flag to achieve the same.

2. For macOS:

   static_cast<SCNetworkInterfaceRef>(CFArrayGetValueAtIndex(physicalVLANInterfaces, i)) for all CFIndex
   

3. For Linux:

   File *fp = popen("lshw -class network | grep -A 1 \"bus info\" | grep name | awk -F': ' '{print $2}'", "r");