public bool Connect(IPAddress serverAddress, SMBTransportType transport, bool forceExtendedSecurity, string serverName = null)
{
m_transport = transport;
if (!m_isConnected)
{
m_forceExtendedSecurity = forceExtendedSecurity;
int port;
port = transport == SMBTransportType.NetBiosOverTCP ? NetBiosOverTCPPort : DirectTCPPort;
if (!ConnectSocket(serverAddress, port))
{
return(false);
}
if (transport == SMBTransportType.NetBiosOverTCP)
{
SessionRequestPacket sessionRequest = new SessionRequestPacket();
sessionRequest.CalledName = NetBiosUtils.GetMSNetBiosName(serverName ?? "*SMBSERVER", NetBiosSuffix.FileServiceService);
sessionRequest.CallingName = NetBiosUtils.GetMSNetBiosName(Environment.MachineName, NetBiosSuffix.WorkstationService);
TrySendPacket(m_clientSocket, sessionRequest);
SessionPacket sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
m_clientSocket.Disconnect(false);
if (!ConnectSocket(serverAddress, port))
{
return(false);
}
NameServiceClient nameServiceClient = new NameServiceClient(serverAddress);
serverName = nameServiceClient.GetServerName();
if (serverName == null)
{
return(false);
}
sessionRequest.CalledName = serverName;
TrySendPacket(m_clientSocket, sessionRequest);
sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
return(false);
}
}
}
bool supportsDialect = NegotiateDialect(m_forceExtendedSecurity);
if (!supportsDialect)
{
m_clientSocket.Close();
}
else
{
m_isConnected = true;
}
}
return(m_isConnected);
}
public bool Connect(IPAddress serverAddress, SMBTransportType transport)
{
// Sometimes underline socket is disconnected, but m_isConnected flag is still true.
// This cause the caller try to reuse the client and fail on all calls.
if (m_clientSocket != null && !m_clientSocket.Connected)
{
// Since reconnect doesn't work for now, return false directly make response faster
return(false);
}
m_transport = transport;
if (!m_isConnected)
{
int port;
if (transport == SMBTransportType.NetBiosOverTCP)
{
port = NetBiosOverTCPPort;
}
else
{
port = DirectTCPPort;
}
if (!ConnectSocket(serverAddress, port))
{
return(false);
}
if (transport == SMBTransportType.NetBiosOverTCP)
{
SessionRequestPacket sessionRequest = new SessionRequestPacket();
sessionRequest.CalledName = NetBiosUtils.GetMSNetBiosName("*SMBSERVER", NetBiosSuffix.FileServiceService);
sessionRequest.CallingName = NetBiosUtils.GetMSNetBiosName(Environment.MachineName, NetBiosSuffix.WorkstationService);
TrySendPacket(m_clientSocket, sessionRequest);
SessionPacket sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
m_clientSocket.Disconnect(false);
if (!ConnectSocket(serverAddress, port))
{
return(false);
}
NameServiceClient nameServiceClient = new NameServiceClient(serverAddress);
string serverName = nameServiceClient.GetServerName();
if (serverName == null)
{
return(false);
}
sessionRequest.CalledName = serverName;
TrySendPacket(m_clientSocket, sessionRequest);
sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
return(false);
}
}
}
bool supportsDialect = NegotiateDialect();
if (!supportsDialect)
{
m_clientSocket.Close();
}
else
{
m_isConnected = true;
}
}
return(m_isConnected);
}
private bool Connect(IPAddress serverAddress, SMBTransportType transport, bool forceExtendedSecurity)
{
m_transport = transport;
if (IsConnected)
{
return(true);
}
m_forceExtendedSecurity = forceExtendedSecurity;
int port = transport == SMBTransportType.NetBiosOverTcp ? NetBiosOverTCPPort : DirectTCPPort;
ConnectSocket(serverAddress, port);
if (transport == SMBTransportType.NetBiosOverTcp)
{
SessionRequestPacket sessionRequest = new SessionRequestPacket
{
CalledName = NetBiosUtils.GetMSNetBiosName("*SMBSERVER", NetBiosSuffix.FileServiceService),
CallingName = NetBiosUtils.GetMSNetBiosName(Environment.MachineName, NetBiosSuffix.WorkstationService)
};
SendPacket(m_clientSocket !, sessionRequest);
SessionPacket?sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
m_clientSocket?.Shutdown(SocketShutdown.Both);
m_clientSocket?.Dispose();
m_clientSocket = null;
ConnectSocket(serverAddress, port);
NameServiceClient nameServiceClient = new NameServiceClient(serverAddress);
string? serverName = nameServiceClient.GetServerName();
if (serverName == null)
{
return(false);
}
sessionRequest.CalledName = serverName;
SendPacket(m_clientSocket, sessionRequest);
sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
return(false);
}
}
}
bool supportsDialect = NegotiateDialect(m_forceExtendedSecurity);
if (!supportsDialect)
{
m_clientSocket?.Shutdown(SocketShutdown.Both);
m_clientSocket?.Dispose();
m_clientSocket = null;
}
else
{
m_isConnected = true;
}
return(m_isConnected);
}
public async Task <bool> ConnectAsync(IPAddress serverAddress, SMBTransportType transport, CancellationToken cancellationToken)
{
m_transport = transport;
if (!m_isConnected)
{
int port;
if (transport == SMBTransportType.NetBiosOverTCP)
{
port = NetBiosOverTCPPort;
}
else
{
port = DirectTCPPort;
}
if (!ConnectSocket(serverAddress, port))
{
return(false);
}
if (transport == SMBTransportType.NetBiosOverTCP)
{
SessionRequestPacket sessionRequest = new SessionRequestPacket();
sessionRequest.CalledName = NetBiosUtils.GetMSNetBiosName("*SMBSERVER", NetBiosSuffix.FileServiceService);
sessionRequest.CallingName = NetBiosUtils.GetMSNetBiosName(Environment.MachineName, NetBiosSuffix.WorkstationService);
await TrySendPacketAsync(m_clientSocket, sessionRequest, cancellationToken);
SessionPacket sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
m_clientSocket.Disconnect(false);
if (!ConnectSocket(serverAddress, port))
{
return(false);
}
NameServiceClient nameServiceClient = new NameServiceClient(serverAddress);
string serverName = nameServiceClient.GetServerName();
if (serverName == null)
{
return(false);
}
sessionRequest.CalledName = serverName;
await TrySendPacketAsync(m_clientSocket, sessionRequest, cancellationToken);
sessionResponsePacket = WaitForSessionResponsePacket();
if (!(sessionResponsePacket is PositiveSessionResponsePacket))
{
return(false);
}
}
}
bool supportsDialect = await NegotiateDialectAsync(cancellationToken);
if (!supportsDialect)
{
m_clientSocket.Close();
}
else
{
m_isConnected = true;
}
}
return(m_isConnected);
}
