/// <summary>Ends connection with an IBM i system.</summary>
public void Disconnect()
{
// TODO - code
this.socketConnectorSignonVerify?.Disconnect();
this.socketConnectorSignonVerify = null;
this.socketConnectorRemoteCommand?.Disconnect();
this.socketConnectorRemoteCommand = null;
this.jobName = string.Empty;
Debug.WriteLine("Connection with " + this.serverName + " was closed.");
}
//-----------------------------------------------------------------------
// Private methods
//-----------------------------------------------------------------------
/// <summary>Connects to the Sign-on Verify server</summary>
private void ConnectToSignonVerifyServer()
{
// Establish authentication channel
this.socketConnectorSignonVerify = new SocketConnector(this.serverName, this.useSSL ? TcpPortSignonVerifySSL : TcpPortSignonVerify, this.useSSL, this.ignoreSelfSignedCertificates);
// Default current seed information
this.clientSeed = 0;
this.serverSeed = 0;
// Exchange random seeds
ulong clientSeed = (ulong)(DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds;
BigEndianMemoryStream outputStream = new BigEndianMemoryStream();
//// outputStream.WriteInt(52); // length
outputStream.WriteShort(0); // Header ID (0)
outputStream.WriteShort(ServerIDSignonVerify); // Server ID
outputStream.WriteInt(0); // CS instance
outputStream.WriteInt(0); // Correlation ID
outputStream.WriteShort(0); // Template length
outputStream.WriteShort(0x7003); // ReqReP ID
outputStream.WriteInt(10); // Client version LL
outputStream.WriteShort(0x1101); // Client version CP
outputStream.WriteInt(1); // Client version
outputStream.WriteInt(8); // Client data stream level LL
outputStream.WriteShort(0x1102); // Client datastream level CP
outputStream.WriteShort(2); // Client datastream level
outputStream.WriteInt(14); // Client seed LL
outputStream.WriteShort(0x1103); // Client seed CP
outputStream.WriteLong(clientSeed); // Client seed
this.socketConnectorSignonVerify.Write(outputStream.ToArray());
// Retrieve server response
byte[] response = this.socketConnectorSignonVerify.Read();
BigEndianMemoryStream inputStream = new BigEndianMemoryStream();
inputStream.Write(response, 0, response.Length);
/*
* The response comes in the following format:
*
* Offset (byte) Information Length (byte)
* -----------------------------------------------------------
* Fixed header
* -----------------------------------------------------------
* 0 Response length 4
* 4 (Reserved) 16
* 20 Result code 4
* 24 (Dynamic fields) see below
* -----------------------------------------------------------
* Dynamic fields (Offset is dynamic)
* -----------------------------------------------------------
* 0 Field length 4
* 4 Field code 2
* 6 Field data (Field length - 6)
*/
// Read fixed header
inputStream.Position = 0;
uint responseLength = inputStream.ReadInt();
if (responseLength < 20)
{
throw new System.InvalidOperationException("Seeds exchange failed. Bad response length.");
}
inputStream.Position += 16;
uint resultCode = inputStream.ReadInt();
if (resultCode != 0)
{
throw new System.InvalidOperationException("Seeds exchange failed. Bad return code.");
}
while (inputStream.Position < responseLength)
{
uint dynamicFieldLength = inputStream.ReadInt();
ushort dynamicFieldCode = inputStream.ReadShort();
byte[] dynamicFieldData = new byte[dynamicFieldLength - 6];
inputStream.Read(dynamicFieldData, 0, (int)dynamicFieldLength - 6);
switch (dynamicFieldCode)
{
case 0x1101: // Server Version
this.serverVersion = Converters.BigEndianToUInt32(dynamicFieldData);
break;
case 0x1102: // Server Level
this.serverLevel = Converters.BigEndianToUInt16(dynamicFieldData);
break;
case 0x1103: // Server Seed
this.serverSeed = Converters.BigEndianToUInt64(dynamicFieldData);
break;
case 0x1119: // Password Level
this.passwordLevel = Converters.BigEndianToUInt8(dynamicFieldData);
break;
case 0x111F: // Job Name
this.jobName = Converters.EbcdicToAsciiString(dynamicFieldData, 4);
break;
default:
break;
}
}
Debug.WriteLine("Seeds were exchanged, return code is 0x" + resultCode.ToString("X8"));
this.clientSeed = clientSeed;
}
/// <summary>Connects to the Remote Command server</summary>
private void ConnectToRemoteCommandServer()
{
// Establish command channel
this.socketConnectorRemoteCommand = new SocketConnector(this.serverName, this.useSSL ? TcpPortRemoteCommandSSL : TcpPortRemoteCommand, this.useSSL, this.ignoreSelfSignedCertificates);
// Default current seed information
this.clientSeed = 0;
this.serverSeed = 0;
// Exchange random seeds
ulong clientSeed = (ulong)(DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds;
BigEndianMemoryStream outputStream = new BigEndianMemoryStream();
outputStream.WriteByte(1); // Client attributes (1 = SHA-1 capability enabled)
outputStream.WriteByte(0); // Server attributes
outputStream.WriteShort(ServerIDRemoteCommand); // Server ID
outputStream.WriteInt(0); // CS instance
outputStream.WriteInt(0); // Correlation ID
outputStream.WriteShort(8); // Template length
outputStream.WriteShort(0x7001); // ReqReP ID
outputStream.WriteLong(clientSeed); // Client seed
this.socketConnectorRemoteCommand.Write(outputStream.ToArray());
// Retrieve server response
byte[] response = this.socketConnectorRemoteCommand.Read();
BigEndianMemoryStream inputStream = new BigEndianMemoryStream();
inputStream.Write(response, 0, response.Length);
/*
* The response comes in the following format:
*
* Offset (byte) Information Length (byte)
* -----------------------------------------------------------
* Fixed header
* -----------------------------------------------------------
* 0 Response length 4
* 4 (Reserved) 16
* 20 Result code 4
* 24 Server seed 8
*/
// Read fixed header
inputStream.Position = 0;
uint responseLength = inputStream.ReadInt();
if (responseLength < 20)
{
throw new System.InvalidOperationException("Seeds exchange failed. Bad response length.");
}
inputStream.Position += 16;
uint resultCode = inputStream.ReadInt();
if (resultCode != 0)
{
throw new System.InvalidOperationException("Seeds exchange failed. Bad return code.");
}
this.serverSeed = inputStream.ReadLong();
this.clientSeed = clientSeed;
Debug.WriteLine("Seeds were exchanged, return code is 0x" + resultCode.ToString("X8"));
}
