private void Negotiate(MySqlStream channel)
{
var body = channel.ReadPacket();
HandshakeInitializationPacket handshakePacket = new HandshakeInitializationPacket();
handshakePacket.FromBytes(body);
ConnectionId = handshakePacket.ThreadId;
_logger.LogInformation("Handshake initialization packet received, prepare the client authentication packet to send");
ClientAuthenticationPacket clientAuth = new ClientAuthenticationPacket();
clientAuth.CharsetNumber = CharsetNumber;
clientAuth.UserName = UserName;
clientAuth.Password = Password;
clientAuth.DatabaseName = DefaultSchema;
clientAuth.ScrumbleBuff = handshakePacket.EncryptionSeed;
var clientAuthPkgBody = clientAuth.ToBytes();
channel.SendPacket(clientAuthPkgBody);
_logger.LogInformation("Client Authentication Packet is sent out.");
channel.ReadPacket();
}
public void Connect()
{
var endpoint = new IPEndPoint(IPAddress.Parse(config.host), config.port);
socket.Connect(endpoint);
byte[] buffer = new byte[512];
int count = socket.Receive(buffer);
if (count < 512)
{
writer.Rewrite();
parser.LoadNewBuffer(buffer, count);
handshake = new HandshakePacket();
handshake.ParsePacket(parser);
this.threadId = handshake.threadId;
byte[] token = MakeToken(config.password, GetScrollbleBuffer(handshake.scrambleBuff1, handshake.scrambleBuff2));
writer.IncrementPacketNumber();
//------------------------------------------
authPacket = new ClientAuthenticationPacket();
authPacket.SetValues(config.user, token, config.database, handshake.protocol41);
authPacket.WritePacket(writer);
byte[] sendBuff = writer.ToArray();
byte[] receiveBuff = new byte[512];
int sendNum = socket.Send(sendBuff);
int receiveNum = socket.Receive(receiveBuff);
parser.LoadNewBuffer(receiveBuff, receiveNum);
if (receiveBuff[4] == 255)
{
ErrPacket errPacket = new ErrPacket();
errPacket.ParsePacket(parser);
return;
}
else
{
OkPacket okPacket = new OkPacket(handshake.protocol41);
okPacket.ParsePacket(parser);
}
writer.Rewrite();
GetMaxAllowedPacket();
if (MAX_ALLOWED_PACKET > 0)
{
writer.SetMaxAllowedPacket(MAX_ALLOWED_PACKET);
}
}
}
