private static retType AISSectionLoad( AISGen devAISGen, ObjectFile file, ObjectSection section)
{
Byte[] secData = file.secRead(section);
Byte[] srcCRCData = new Byte[section.size + 8];
Debug.DebugMSG("AISSectionLoad for section " + section.name + " from file " + file.FileName + ".");
// If we are doing section-by-section CRC, then zero out the CRC value
if (devAISGen.aisCRCType == AisCRCCheckType.SECTION_CRC)
{
devAISGen.devCRC.ResetCRC();
}
// Add section load to the output
devAISGen.InsertAISSectionLoad((UInt32) section.loadAddr, (UInt32) section.size, secData);
// Copy bytes to CRC byte array for future CRC calculation
if (devAISGen.aisCRCType != AisCRCCheckType.NO_CRC)
{
if (devAISGen.devEndian != devAISGen.devAISEndian)
{
Endian.swapEndian(BitConverter.GetBytes(section.loadAddr)).CopyTo(srcCRCData, 0);
Endian.swapEndian(BitConverter.GetBytes(section.size)).CopyTo(srcCRCData, 4);
}
else
{
BitConverter.GetBytes(section.loadAddr).CopyTo(srcCRCData, 0);
BitConverter.GetBytes(section.size).CopyTo(srcCRCData, 4);
}
}
// Now write contents to CRC array
for (UInt32 k = 0; k < section.size; k+=4)
{
// Copy bytes to array for future CRC calculation
if (devAISGen.aisCRCType != AisCRCCheckType.NO_CRC)
{
Byte[] temp = new Byte[4];
Array.Copy(secData,k,temp,0,4);
if (devAISGen.devEndian != devAISGen.devAISEndian)
{
Endian.swapEndian(temp).CopyTo(srcCRCData, (8 + k));
}
else
{
temp.CopyTo(srcCRCData, (8 + k));
}
}
}
// Add this section's memory range, checking for overlap
AddMemoryRange(devAISGen, (UInt32) section.loadAddr, (UInt32) (section.loadAddr+section.size-1));
// Perform CRC calculation of the section's contents
if (devAISGen.aisCRCType != AisCRCCheckType.NO_CRC)
{
devAISGen.devCRC.CalculateCRC(srcCRCData);
if (devAISGen.aisCRCType == AisCRCCheckType.SECTION_CRC)
{
// Write CRC request command, value, and jump value to temp AIS file
devAISGen.InsertAISRequestCRC(((Int32)(-1) * (Int32)(section.size + 12 + 12)));
}
}
return retType.SUCCESS;
}
/// <summary>
/// AIS Section Load command generation
/// </summary>
/// <param name="cf">The COFFfile object that the section comes from.</param>
/// <param name="secHeader">The Hashtable object of the section header to load.</param>
/// <param name="devAISGen">The specific device AIS generator object.</param>
/// <returns>retType enumerator indicating success or failure.</returns>
private static retType AISSecureSectionLoad( AISGen devAISGen, ObjectFile file, ObjectSection section, Boolean encryptSection)
{
Byte[] secData = file.secRead(section);
// Write Section_Load AIS command, load address, and size
if (encryptSection)
{
Byte[] encData = null;
// Encrypt data using CTS algorithm
try
{
encData = AesManagedUtil.AesCTSEncrypt(secData,devAISGen.customerEncryptionKey,devAISGen.CEKInitialValue);
}
catch(Exception e)
{
Console.WriteLine("Exception during encryption operation: {0}",e.Message);
return retType.FAIL;
}
if (encData != null)
{
devAISGen.InsertAISEncSectionLoad((UInt32) section.loadAddr, (UInt32) section.size, secData, encData);
}
else
{
Console.WriteLine("Section encryption failed.");
return retType.FAIL;
}
}
else
{
devAISGen.InsertAISSectionLoad((UInt32) section.loadAddr, (UInt32) section.size, secData);
}
// Add this section's memory range, checking for overlap
AddMemoryRange(devAISGen, (UInt32) section.loadAddr, (UInt32) (section.loadAddr+section.size-1));
return retType.SUCCESS;
}