private Smb2Packet DecodeEncryptedSmb2Packet(
byte[] messageBytes,
Smb2Role role,
ulong realSessionId,
uint realTreeId,
out int consumedLength,
out int expectedLength
)
{
Transform_Header transformHeader;
var decryptedBytes = Smb2Crypto.Decrypt(messageBytes, cryptoInfoTable, decodeRole, out transformHeader);
if (transformHeader.OriginalMessageSize != decryptedBytes.Length)
{
throw new InvalidOperationException("[MS-SMB2] section 3.3.5.2.1.1 OriginalMessageSize in TRANSFORM_HEADER does not match received message size.");
}
byte[] protocolVersion = new byte[sizeof(uint)];
Array.Copy(decryptedBytes, 0, protocolVersion, 0, protocolVersion.Length);
SmbVersion version = DecodeVersion(protocolVersion);
if (version == SmbVersion.Version2Compressed)
{
return(DecodeCompressedSmb2Packet(
decryptedBytes,
role,
realSessionId,
realTreeId,
out consumedLength,
out expectedLength,
transformHeader
));
}
else if (version == SmbVersion.Version2)
{
return(DecodeSmb2Packet(
decryptedBytes,
role,
realSessionId,
realTreeId,
out consumedLength,
out expectedLength,
transformHeader
));
}
else
{
throw new InvalidOperationException("Unkown ProtocolId!");
}
}
private Smb2Packet DecodeEncryptedSmb2Packet(
byte[] messageBytes,
Smb2Role role,
ulong realSessionId,
uint realTreeId,
out int consumedLength,
out int expectedLength
)
{
Transform_Header transformHeader;
var decryptedBytes = Smb2Crypto.Decrypt(messageBytes, cryptoInfoTable, decodeRole, out transformHeader);
byte[] protocolVersion = new byte[sizeof(uint)];
Array.Copy(decryptedBytes, 0, protocolVersion, 0, protocolVersion.Length);
SmbVersion version = DecodeVersion(protocolVersion);
if (version == SmbVersion.Version2Compressed)
{
return(DecodeCompressedSmb2Packet(
decryptedBytes,
role,
realSessionId,
realTreeId,
out consumedLength,
out expectedLength,
transformHeader
));
}
else if (version == SmbVersion.Version2)
{
return(DecodeSmb2Packet(
decryptedBytes,
role,
realSessionId,
realTreeId,
out consumedLength,
out expectedLength,
transformHeader
));
}
else
{
throw new InvalidOperationException("Unkown ProtocolId!");
}
}
private Smb2Packet DecodeEncryptedSmb2Packet(
byte[] messageBytes,
Smb2Role role,
bool ignoreCompoundFlag,
ulong realSessionId,
uint realTreeId,
out int consumedLength,
out int expectedLength
)
{
return(DecodeSmb2Packet(
Smb2Crypto.Decrypt(messageBytes, cryptoInfoTable, decodeRole),
role,
ignoreCompoundFlag,
realSessionId,
realTreeId,
out consumedLength,
out expectedLength));
}
private Smb2Packet DecodeEncryptedSmb2Packet(
byte[] messageBytes,
Smb2Role role,
ulong realSessionId,
uint realTreeId,
out int consumedLength,
out int expectedLength
)
{
Transform_Header transformHeader;
var decryptedBytes = Smb2Crypto.Decrypt(messageBytes, cryptoInfoTable, decodeRole, out transformHeader);
return(DecodeSmb2Packet(
decryptedBytes,
role,
realSessionId,
realTreeId,
out consumedLength,
out expectedLength,
transformHeader
));
}
