public static ArrayList FindAllDevs()
{
ArrayList devarraylist = new ArrayList();
pcap_if devlist;
devlist.addresses = IntPtr.Zero;
devlist.description = (new StringBuilder()).ToString();
devlist.flags = 0;
devlist.name = (new StringBuilder()).ToString();
devlist.next = IntPtr.Zero;
IntPtr tmpptr = IntPtr.Zero;
StringBuilder err = new StringBuilder(256);
IntPtr head = IntPtr.Zero;
if (LoadLibrary("wpcap.dll") == IntPtr.Zero)
{
MessageBox.Show(null, "Please install the Npcap driver, which can be found on https://nmap.org/npcap/ .", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(null);
}
if (pcap_findalldevs(ref tmpptr, err) == -1)
{
return(null);
}
else
{
head = tmpptr;
while (tmpptr.ToInt32() != 0)
{
Device tmpDevice = new Device();
devarraylist.Add(tmpDevice);
devlist = (pcap_if)Marshal.PtrToStructure(tmpptr, typeof(pcap_if));
tmpDevice.Name = devlist.name;
tmpDevice.Description = devlist.description;
if (devlist.addresses.ToInt32() != 0)
{
pcap_addr addr = (pcap_addr)Marshal.PtrToStructure(devlist.addresses, typeof(pcap_addr));
if (addr.addr.ToInt32() != 0)
{
sockaddr ip = (sockaddr)Marshal.PtrToStructure(addr.addr, typeof(sockaddr));
tmpDevice.Address = ip.addr[0].ToString() + "." + ip.addr[1].ToString() + "." + ip.addr[2].ToString() + "." + ip.addr[3].ToString();
}
if (addr.netmask.ToInt32() != 0)
{
sockaddr netmask = (sockaddr)Marshal.PtrToStructure(addr.netmask, typeof(sockaddr));
tmpDevice.Netmask = netmask.addr[0].ToString() + "." + netmask.addr[1].ToString() + "." + netmask.addr[2].ToString() + "." + netmask.addr[3].ToString();
}
}
tmpptr = devlist.next;
}
pcap_freealldevs(head);
}
return(devarraylist);
}
public static ArrayList FindAllDevs()
{
ArrayList devarraylist = new ArrayList();
pcap_if devlist;
devlist.addresses = IntPtr.Zero;
devlist.description = (new StringBuilder()).ToString();
devlist.flags = 0;
devlist.name = (new StringBuilder()).ToString();
devlist.next = IntPtr.Zero;
IntPtr tmpptr = IntPtr.Zero;
StringBuilder err = new StringBuilder(256);
IntPtr head = IntPtr.Zero;
if (pcap_findalldevs(ref tmpptr, err) == -1)
{
return(null);
}
else
{
head = tmpptr;
while (tmpptr.ToInt32() != 0)
{
Device tmpDevice = new Device();
devarraylist.Add(tmpDevice);
devlist = (pcap_if)Marshal.PtrToStructure(tmpptr, typeof(pcap_if));
tmpDevice.Name = devlist.name;
tmpDevice.Description = devlist.description;
if (devlist.addresses.ToInt32() != 0)
{
pcap_addr addr = (pcap_addr)Marshal.PtrToStructure(devlist.addresses, typeof(pcap_addr));
if (addr.addr.ToInt32() != 0)
{
sockaddr ip = (sockaddr)Marshal.PtrToStructure(addr.addr, typeof(sockaddr));
tmpDevice.Address = ip.addr[0].ToString() + "." + ip.addr[1].ToString() + "." + ip.addr[2].ToString() + "." + ip.addr[3].ToString();
}
if (addr.netmask.ToInt32() != 0)
{
sockaddr netmask = (sockaddr)Marshal.PtrToStructure(addr.netmask, typeof(sockaddr));
tmpDevice.Netmask = netmask.addr[0].ToString() + "." + netmask.addr[1].ToString() + "." + netmask.addr[2].ToString() + "." + netmask.addr[3].ToString();
}
}
tmpptr = devlist.next;
}
pcap_freealldevs(head);
}
return(devarraylist);
}
private unsafe IList <Device> GetAllDevices()
{
List <Device> deviceList = new List <Device>();
IntPtr deviceListPtr = IntPtr.Zero;
IntPtr currentAddress;
try
{
StringBuilder errorBuffer = new StringBuilder(PCAP_ERRBUF_SIZE);
int returnCode = pcap_findalldevs(ref deviceListPtr, errorBuffer);
if (returnCode != 0)
{
throw new ApplicationException("Cannot enumerate devices: [" + errorBuffer.ToString() + "].");
}
IntPtr ip = deviceListPtr;
while (ip != IntPtr.Zero)
{
pcap_if dev = (pcap_if)Marshal.PtrToStructure(ip, typeof(pcap_if));
Device device = new Device();
device.Name = dev.name;
device.Description = dev.description;
device.Addresses = new List <uint>();
currentAddress = dev.addresses;
while (currentAddress != IntPtr.Zero)
{
pcap_addr address = *(pcap_addr *)currentAddress;
if (address.addr != IntPtr.Zero)
{
sockaddr_in sockaddress = *(sockaddr_in *)address.addr;
if (sockaddress.sin_family == AF_INET)
{
device.Addresses.Add(sockaddress.sin_addr);
}
}
currentAddress = address.next;
}
deviceList.Add(device);
ip = dev.next;
}
}
catch (Exception ex)
{
throw new ApplicationException("Unable to get WinPcap device list.", ex);
}
finally
{
// always release memory after getting device list.
if (deviceListPtr != IntPtr.Zero)
{
pcap_freealldevs(deviceListPtr);
}
}
return(deviceList);
}
