/// <summary>Receives data from an open stream.</summary>
/// <returns>Retrieved data</returns>
public byte[] Read()
{
byte[] responseLength = new byte[4];
using (BigEndianMemoryStream readStream = new BigEndianMemoryStream())
{
if (!this.bufferedStream.CanRead)
{
return(null);
}
this.bufferedStream.Read(responseLength, 0, 4);
readStream.Write(responseLength, 0, 4);
Debug.WriteLine("Packet length: " + BitConverter.ToString(responseLength));
long bytesToRead = Converters.BigEndianToUInt32(responseLength);
if (bytesToRead == 0x00000000 || bytesToRead == 0x40404040)
{
return(null);
}
bytesToRead -= 4;
while (bytesToRead > 0)
{
byte[] buffer = new byte[(long)byte.MaxValue < bytesToRead ? byte.MaxValue : (int)bytesToRead];
if (!this.bufferedStream.CanRead)
{
Thread.Sleep(100);
}
this.bufferedStream.Read(buffer, 0, buffer.Length);
readStream.Write(buffer, 0, buffer.Length);
bytesToRead -= buffer.Length;
}
return(readStream.ToArray());
}
}
//-----------------------------------------------------------------------
// 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>Authenticates the user to the remote command server</summary>
private void AuthenticateToRemoteCommandServer()
{
// Establish command channel
if (this.socketConnectorRemoteCommand == null)
{
throw new System.InvalidOperationException("Operation failed, connection not established.");
}
BigEndianMemoryStream outputStream = new BigEndianMemoryStream();
byte[] encryptedPassword;
byte[] userID = Converters.AsciiToEbcdic(this.userName.ToUpper().PadRight(10));
encryptedPassword = this.passwordLevel < 2 ? Encryption.EncryptPasswordDES(this.userName, this.password, this.serverSeed, this.clientSeed) : Encryption.EncryptPasswordSHA1(this.userName, this.password, this.serverSeed, this.clientSeed);
outputStream.WriteByte(2); // Client attributes (2: return job information)
outputStream.WriteByte(0); // Server attributes
outputStream.WriteShort(ServerIDRemoteCommand); // Server ID
outputStream.WriteInt(0); // CS instance
outputStream.WriteInt(0); // Correlation ID
outputStream.WriteShort(2); // Template length
outputStream.WriteShort(0x7002); // ReqReP ID
outputStream.WriteByte((byte)(this.passwordLevel < 2 ? 1 : 3)); // Password encryption type
outputStream.WriteByte(1); // Send reply
outputStream.WriteInt(6 + (uint)encryptedPassword.Length); // Password LL
outputStream.WriteShort(0x1105); // Password CP. 0x1115 is other.
outputStream.Write(encryptedPassword, 0, encryptedPassword.Length); // Password
outputStream.WriteInt(16); // User ID LL
outputStream.WriteShort(0x1104); // User ID CP
outputStream.Write(userID, 0, userID.Length); // UserID
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 (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("Authentication failed. Bad response length.");
}
inputStream.Position += 16;
uint resultCode = inputStream.ReadInt();
if (resultCode != 0)
{
if ((resultCode & 0xFFFF0000) == 0x00010000)
{
throw new System.InvalidOperationException("Authentication failed. Error on request data.");
}
if ((resultCode & 0xFFFF0000) == 0x00040000)
{
throw new System.InvalidOperationException("Authentication failed. General security error, function not performed.");
}
if ((resultCode & 0xFFFF0000) == 0x00060000)
{
throw new System.InvalidOperationException("Authentication failed. Authentication token error.");
}
switch (resultCode)
{
case 0x00020001:
throw new System.InvalidOperationException("Authentication failed. User ID unknown.");
case 0x00020002:
throw new System.InvalidOperationException("Authentication failed. User ID locked.");
case 0x00020003:
throw new System.InvalidOperationException("Authentication failed. User ID doesn't match the authentication token.");
case 0x0003000B:
throw new System.InvalidOperationException("Authentication failed. Password incorrect.");
case 0x0003000C:
throw new System.InvalidOperationException("Authentication failed. Password incorrect. User profile will be revoked on next invalid password or passphrase.");
case 0x0003000D:
throw new System.InvalidOperationException("Authentication failed. Password is expired.");
case 0x0003000E:
throw new System.InvalidOperationException("Authentication failed. Pre-V2R2 encrypted password.");
case 0x00030010:
throw new System.InvalidOperationException("Authentication failed. Password is *NONE.");
default:
throw new System.InvalidOperationException("Authentication failed. Return code 0x" + resultCode.ToString("X8"));
}
}
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 0x111F: // Server Version
this.jobName = Converters.EbcdicToAsciiString(dynamicFieldData, 4);
break;
default:
break;
}
}
Debug.WriteLine("User authenticated to remote command server.");
}
/// <summary>Authenticates the user to the signon server</summary>
private void AuthenticateToSignonVerifyServer()
{
BigEndianMemoryStream outputStream = new BigEndianMemoryStream();
byte[] encryptedPassword;
byte[] userID = Converters.AsciiToEbcdic(this.userName.ToUpper().PadRight(10));
encryptedPassword = this.passwordLevel < 2 ? Encryption.EncryptPasswordDES(this.userName, this.password, this.serverSeed, this.clientSeed) : Encryption.EncryptPasswordSHA1(this.userName, this.password, this.serverSeed, this.clientSeed);
if (this.serverLevel >= 5)
{
outputStream.WriteShort(0); // Header ID (0)
}
outputStream.WriteShort(ServerIDSignonVerify); // Server ID
outputStream.WriteInt(0); // CS instance
outputStream.WriteInt(0); // Correlation ID
outputStream.WriteShort(0x0001); // Template length
outputStream.WriteShort(0x7004); // ReqReP ID
outputStream.WriteByte((byte)(this.passwordLevel < 2 ? 1 : 3)); // Password encryption type
outputStream.WriteInt(10); // Client CCSID LL
outputStream.WriteShort(0x1113); // Client CCSID CP
outputStream.WriteInt(1200); // Client CCSID (big endian UTF-16)
outputStream.WriteInt(6 + (uint)encryptedPassword.Length); // Password LL
outputStream.WriteShort(0x1105); // Password CP. 0x1115 is other.
outputStream.Write(encryptedPassword, 0, encryptedPassword.Length); // Password
outputStream.WriteInt(16); // User ID LL
outputStream.WriteShort(0x1104); // User ID CP
outputStream.Write(userID, 0, userID.Length); // UserID
if (this.serverLevel >= 5)
{
outputStream.WriteInt(7); // Return error messages LL
outputStream.WriteShort(0x1128); // Return error messages CP
outputStream.WriteByte(1); // Return error messages
}
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("Authentication failed. Bad response length.");
}
inputStream.Position += 16;
uint resultCode = inputStream.ReadInt();
if (resultCode != 0)
{
switch (resultCode)
{
case 0x00020001:
throw new System.InvalidOperationException("Authentication failed. Unknown username.");
case 0x0003000B:
throw new System.InvalidOperationException("Authentication failed. Wrong password.");
case 0x0003000C:
throw new System.InvalidOperationException("Authentication failed. Wrong password. Profile will be disabled on the next invalid password.");
case 0x0003000D:
throw new System.InvalidOperationException("Authentication failed. Password is expired.");
case 0x00030010:
throw new System.InvalidOperationException("Authentication failed. Password is *NONE.");
default:
throw new System.InvalidOperationException("Authentication failed. Return code 0x" + resultCode.ToString("X8"));
}
}
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 0x1114: // Server Version
this.serverCCSID = Converters.BigEndianToUInt32(dynamicFieldData);
break;
default:
break;
}
}
Debug.WriteLine("User authenticated to signon server.");
}
/// <summary>Retrieves server information</summary>
private void RetrieveRemoteCommandServerInformation()
{
// Establish command channel
if (this.socketConnectorRemoteCommand == null)
{
throw new System.InvalidOperationException("Operation failed, connection not established.");
}
BigEndianMemoryStream outputStream = new BigEndianMemoryStream();
outputStream.WriteShort(0); // Header ID
outputStream.WriteShort(ServerIDRemoteCommand); // Server ID
outputStream.WriteInt(0); // CS instance
outputStream.WriteInt(0); // Correlation ID
outputStream.WriteShort(14); // Template length
outputStream.WriteShort(0x1001); // ReqReP ID
outputStream.WriteInt(1200); // Operation is CCSID
outputStream.Write(Converters.AsciiToEbcdic("2924"), 0, 4); // NLV value (default = 2924 = English)
outputStream.WriteInt(1); // Client version
outputStream.WriteShort(0); // Client datastream level
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 2
* 24 CCSID 4
* 28 NLV (in EBCDIC) 4
* 32 (reserved) 4
* 36 Datastream level 2
*/
// 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.ReadShort();
// We ignore the same return codes that JTOPEN/JT400 ignores
if (resultCode != 0x0100 && // User with *LMTCPB = *YES
resultCode != 0x0104 && // Invalid CCSID.
resultCode != 0x0105 && // Invalid NLV, default to primary NLV:
resultCode != 0x0106 && // NLV not installed, default to primary NLV:
// The NLV may not be supported or it may not be installed on the system.
resultCode != 0x0107 && // Error retrieving product information. Can't validate NLV.
resultCode != 0x0108 && // Error trying to add NLV library to system library list:
// One possible reason for failure is the user may not be authorized to CHGSYSLIBL command.
resultCode != 0)
{
throw new System.InvalidOperationException("Invalid operation, failed to retrieve Remote Command server attributes.");
}
this.serverCCSID = inputStream.ReadInt();
byte[] nlv = new byte[4];
inputStream.Read(nlv, 0, 4);
this.serverNLV = Converters.EbcdicToAsciiString(nlv);
inputStream.Position += 4;
this.serverDatastreamLevel = inputStream.ReadShort();
Debug.WriteLine("Remote Command server attributes retrieved, return code is 0x" + resultCode.ToString("X8"));
}
/// <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"));
}