public static bool DoesServerSupportDialectWithSmbV2(string server, int dialect, out SMBSecurityModeEnum securityMode)
{
Trace.WriteLine("Checking " + server + " for SMBV2 dialect 0x" + dialect.ToString("X2"));
securityMode = SMBSecurityModeEnum.NotTested;
TcpClient client = new TcpClient();
client.ReceiveTimeout = 500;
client.SendTimeout = 500;
try
{
client.Connect(server, 445);
}
catch (Exception)
{
throw new SmbPortClosedException(server);
}
try
{
NetworkStream stream = client.GetStream();
var smb2 = new Smb2Protocol(stream, server);
var negotiateresponse = smb2.SendNegotiateRequest(dialect);
if ((negotiateresponse.SecurityMode & 1) != 0)
{
securityMode = SMBSecurityModeEnum.SmbSigningEnabled;
if ((negotiateresponse.SecurityMode & 2) != 0)
{
securityMode |= SMBSecurityModeEnum.SmbSigningRequired;
}
}
else
{
securityMode = SMBSecurityModeEnum.None;
}
Trace.WriteLine("Checking " + server + " for SMBV2 dialect 0x" + dialect.ToString("X2") + " = Supported");
return(true);
}
catch (Exception)
{
throw new Smb2NotSupportedException(server);
}
}
public static List <Smb2Protocol.NetworkInfo> GetFCTL_QUERY_NETWORK_INFO(string server, NetworkCredential credential = null)
{
Trace.WriteLine("Checking " + server + " for GetFCTL_QUERY_NETWORK_INFO");
TcpClient client = new TcpClient();
client.ReceiveTimeout = 500;
client.SendTimeout = 500;
try
{
client.Connect(server, 445);
}
catch (Exception)
{
Trace.WriteLine("Error with " + server + "(port closed)");
return(null);
}
try
{
NetworkStream stream = client.GetStream();
var smb2 = new Smb2Protocol(stream, server);
smb2.SendNegotiateRequest(0x0302);
smb2.SendSessionSetupRequests(credential);
smb2.SendTreeConnect("\\\\" + server + "\\IPC$");
var o = smb2.GetNetworkInterfaceInfo();
client.Close();
return(o);
}
catch (Exception ex)
{
Trace.WriteLine("Error with " + server + "(" + ex.Message + ")");
return(null);
}
}
