public override void HandlePacket(LobbyClient client, ServerPacket packet)
{
var reader = packet.Reader;
// Read data from packet
uint hwVValue = reader.ReadUInt32();
int encryptedDataSize = reader.ReadInt32();
byte[] encryptedData = reader.ReadBytes(encryptedDataSize);
// Decrypt data
byte[] decryptedData = WindowsRSA.DecryptData(client._clientDecryptEngine, encryptedData);
// Create reader for decrypted data
var dataReader = new APBBinaryReader(new MemoryStream(decryptedData));
string queryLanguage = dataReader.ReadASCIIString(4);
if (queryLanguage != "WQL")
{
Log.Warn($"Unexpected query language for WMI request ({queryLanguage})");
client.Disconnect();
return;
}
int numSections = dataReader.ReadInt32();
int numFields = dataReader.ReadInt32();
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
// Create array to store hashes of sections
var hashes = new List <byte[]>(numSections);
// Create XML writer to write response for WMI queries
StringBuilder hwBuilder = new StringBuilder();
XmlWriter hwWriter = XmlWriter.Create(hwBuilder, settings);
hwWriter.WriteStartElement("HW");
hwWriter.WriteAttributeString("v", hwVValue.ToString());
// Read each section, which contains data on a WQL query for the HW part of the response
for (int i = 0; i < numSections; i++)
{
byte sectionNumber = dataReader.ReadByte();
byte sectionNameLength = dataReader.ReadByte();
string sectionName = dataReader.ReadASCIIString(sectionNameLength + 1);
byte skipHash = dataReader.ReadByte();
byte selectLength = dataReader.ReadByte();
string selectClause = dataReader.ReadASCIIString(selectLength + 1);
byte fromLength = dataReader.ReadByte();
string fromClause = dataReader.ReadASCIIString(fromLength + 1);
Log.Info($"WMI Query: Section={sectionName}, SkipHash={skipHash}, Query=SELECT {selectClause} {fromClause}");
byte[] hash = client._hardwareStore.BuildWmiSectionAndHash(hwWriter, sectionName, selectClause, fromClause, (skipHash == 1));
if (hash != null)
{
hashes.Add(hash);
}
}
hwWriter.WriteEndElement();
hwWriter.Flush();
// Create the middle section, which is the first 4 bytes of each hash concatenated together
byte[] hashBlock = new byte[4 * hashes.Count];
for (int i = 0; i < hashes.Count; i++)
{
Buffer.BlockCopy(hashes[i], 0, hashBlock, i * 4, 4);
}
// Now we need to prepare the BFP section, which in APB is done with similar code to that at https://github.com/cavaliercoder/sysinv/
StringBuilder bfpBuilder = new StringBuilder();
XmlWriter bfpWriter = XmlWriter.Create(bfpBuilder, settings);
client._hardwareStore.BuildBfpSection(bfpWriter);
bfpWriter.Flush();
// Generate the hash for the BFP section
byte[] bfpHash = client._hardwareStore.BuildBfpHash();
// Generate the Windows information section
byte[] windowsInfo = client._hardwareStore.BuildWindowsInfo();
// Encrypt the BFP, HW, and hash sections with our public key
byte[] hwUnicodeData = Encoding.Unicode.GetBytes(hwBuilder.ToString());
byte[] bfpUnicodeData = Encoding.Unicode.GetBytes(bfpBuilder.ToString());
byte[] encryptedHWData = WindowsRSA.EncryptData(client._serverEncryptEngine, hwUnicodeData);
byte[] encryptedBFPData = WindowsRSA.EncryptData(client._serverEncryptEngine, bfpUnicodeData);
byte[] encryptedHashBlock = WindowsRSA.EncryptData(client._serverEncryptEngine, hashBlock);
// Construct and send the response!
var hardwareInfo = new GC2LS_HARDWARE_INFO(windowsInfo, 0, 0, client._hardwareStore.BfpVersion, bfpHash, encryptedHashBlock, encryptedBFPData, encryptedHWData);
client.SendPacket(hardwareInfo);
}
public override void HandlePacket(LobbyClient client, ServerPacket packet)
{
var reader = packet.Reader;
uint hwVValue = reader.ReadUInt32();
int encryptedDataSize = reader.ReadInt32();
byte[] encryptedData = reader.ReadBytes(encryptedDataSize);
byte[] decryptedData = WindowsRSA.DecryptData(client.ClientDecryptEngine, encryptedData);
var dataReader = new APBBinaryReader(new MemoryStream(decryptedData));
string queryLanguage = dataReader.ReadASCIIString(4);
if (queryLanguage != "WQL")
{
client.Disconnect();
return;
}
int numSections = dataReader.ReadInt32(), numFields = dataReader.ReadInt32();
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
var hashes = new List <byte[]>(numSections);
StringBuilder hwBuilder = new StringBuilder();
XmlWriter hwWriter = XmlWriter.Create(hwBuilder, settings);
hwWriter.WriteStartElement("HW");
hwWriter.WriteAttributeString("v", hwVValue.ToString());
for (int i = 0; i < numSections; i++)
{
byte sectionNumber = dataReader.ReadByte(), sectionNameLength = dataReader.ReadByte();
string sectionName = dataReader.ReadASCIIString(sectionNameLength + 1);
byte skipHash = dataReader.ReadByte(), selectLength = dataReader.ReadByte();
string selectClause = dataReader.ReadASCIIString(selectLength + 1);
byte fromLength = dataReader.ReadByte();
string fromClause = dataReader.ReadASCIIString(fromLength + 1);
byte[] hash = client.HardwareStore.BuildWmiSectionAndHash(hwWriter, sectionName, selectClause, fromClause, (skipHash == 1));
if (hash != null)
{
hashes.Add(hash);
}
}
hwWriter.WriteEndElement();
hwWriter.Flush();
byte[] hashBlock = new byte[4 * hashes.Count];
for (int i = 0; i < hashes.Count; i++)
{
Buffer.BlockCopy(hashes[i], 0, hashBlock, i * 4, 4);
}
StringBuilder bfpBuilder = new StringBuilder();
XmlWriter bfpWriter = XmlWriter.Create(bfpBuilder, settings);
client.HardwareStore.BuildBfpSection(bfpWriter);
bfpWriter.Flush();
byte[] bfpHash = client.HardwareStore.BuildBfpHash();
byte[] windowsInfo = client.HardwareStore.BuildWindowsInfo();
byte[] hwUnicodeData = Encoding.Unicode.GetBytes(hwBuilder.ToString());
byte[] bfpUnicodeData = Encoding.Unicode.GetBytes(bfpBuilder.ToString());
byte[] encryptedHWData = WindowsRSA.EncryptData(client.ServerEncryptEngine, hwUnicodeData);
byte[] encryptedBFPData = WindowsRSA.EncryptData(client.ServerEncryptEngine, bfpUnicodeData);
byte[] encryptedHashBlock = WindowsRSA.EncryptData(client.ServerEncryptEngine, hashBlock);
var hardwareInfo = new GC2LS_HARDWARE_INFO(windowsInfo, 0, 0, client.HardwareStore.BfpVersion, bfpHash, encryptedHashBlock, encryptedBFPData, encryptedHWData);
client.SendPacket(hardwareInfo);
}