private void AuthenticateSSPI()
{
string targetName = ""; // target name (required by Kerberos)
// First packet sent by server should include target name (for
// Kerberos) as UTF8 string. It might however be prepended by junk
// at the start of the string (0xfe"authentication_win_client"\0,
// see Bug#57442), this junk will be ignored. Target name can also
// be an empty string if server is not running in a domain environment,
// in this case authentication will fallback to NTLM.
// Note that 0xfe byte at the start could also indicate that windows
// authentication is not supported by sérver, we throw an exception
// if this happens.
packet = stream.ReadPacket();
byte b = packet.ReadByte();
if (b == 0xfe)
{
string authMethod = packet.ReadString();
if (authMethod.Equals(AuthenticationWindowsPlugin))
{
targetName = packet.ReadString(Encoding.UTF8);
}
else
{
// User has requested Windows authentication, bail out.
throw new MySqlException("unexpected authentication method " +
authMethod);
}
}
else
{
targetName = Encoding.UTF8.GetString(packet.Buffer, 0, packet.Buffer.Length);
}
// Do SSPI authentication handshake
SSPI sspi = new SSPI(targetName, stream.BaseStream, stream.SequenceByte);
sspi.AuthenticateClient();
// read ok packet.
packet = stream.ReadPacket();
ReadOk(false);
}
private void AuthenticateSSPI()
{
string targetName = ""; // target name (required by Kerberos)
// First packet sent by server should include target name (for
// Kerberos) as UTF8 string. It might however be prepended by junk
// at the start of the string (0xfe"authentication_win_client"\0,
// see Bug#57442), this junk will be ignored. Target name can also
// be an empty string if server is not running in a domain environment,
// in this case authentication will fallback to NTLM.
// Note that 0xfe byte at the start could also indicate that windows
// authentication is not supported by sérver, we throw an exception
// if this happens.
packet = stream.ReadPacket();
byte b = packet.ReadByte();
if (b == 0xfe)
{
string authMethod = packet.ReadString();
if (authMethod.Equals(AuthenticationWindowsPlugin))
{
targetName = packet.ReadString(Encoding.UTF8);
}
else
{
// User has requested Windows authentication, bail out.
throw new MySqlException("unexpected authentication method " +
authMethod);
}
}
else
{
targetName = Encoding.UTF8.GetString(packet.Buffer, 0, packet.Buffer.Length);
}
// Do SSPI authentication handshake
SSPI sspi = new SSPI(targetName, stream.BaseStream, stream.SequenceByte);
sspi.AuthenticateClient();
// read ok packet.
packet = stream.ReadPacket();
ReadOk(false);
}
