Trying more things. I think clientek is being rejected.

src/main/java/com/github/manevolent/ts3j/protocol/client/LocalTeamspeakClient.java

@@ -7,12 +7,15 @@ import com.github.manevolent.ts3j.protocol.NetworkPacket;
 import com.github.manevolent.ts3j.protocol.ProtocolRole;
 import com.github.manevolent.ts3j.protocol.SocketRole;
 import com.github.manevolent.ts3j.protocol.header.ClientPacketHeader;
+import com.github.manevolent.ts3j.protocol.header.HeaderFlag;
 import com.github.manevolent.ts3j.protocol.packet.Packet6Ack;
 import com.github.manevolent.ts3j.protocol.packet.PacketType;
 import com.github.manevolent.ts3j.protocol.packet.channel.PacketChannel;
 import com.github.manevolent.ts3j.protocol.packet.handler.client.LocalClientHandler;
+import com.github.manevolent.ts3j.protocol.packet.transformation.PacketTransformation;
 import com.github.manevolent.ts3j.protocol.socket.LocalTeamspeakSocket;
 import com.github.manevolent.ts3j.protocol.packet.Packet;
+import com.github.manevolent.ts3j.util.Ts3Crypt;
 import com.github.manevolent.ts3j.util.Ts3Logging;
 
 import java.io.IOException;
@@ -72,6 +75,10 @@ public class LocalTeamspeakClient extends LocalEndpoint implements TeamspeakClie
         return clientOptions;
     }
 
+    public void setSecureParameters(Ts3Crypt.SecureChannelParameters parameters) {
+        getSocket().setPacketTransformation(new PacketTransformation(parameters.getIvStruct()));
+    }
+
     /**
      * Sends a command to the remote server.
      * @param command Command to send.
@@ -108,6 +115,7 @@ public class LocalTeamspeakClient extends LocalEndpoint implements TeamspeakClie
      * @param packet Packet to send
      * @throws IOException
      */
+    int z = 0;
     public void send(Packet packet) throws IOException {
         // Construct header
         ClientPacketHeader header = new ClientPacketHeader();
@@ -117,10 +125,15 @@ public class LocalTeamspeakClient extends LocalEndpoint implements TeamspeakClie
 
         packet.setHeaderValues(header);
 
+        if (connectionState == ClientConnectionState.CONNECTING) {
+            header.setPacketId(z++);
+            header.setPacketFlag(HeaderFlag.NEW_PROTOCOL, true);
+        }
+
         getSocket().send(header, packet);
     }
 
-    private void setConnectionState(ClientConnectionState state) {
+    public void setConnectionState(ClientConnectionState state) {
         synchronized (connectionStateLock) {
             if (state != this.connectionState) {
                 Ts3Logging.debug("State changing: " + state.name());

src/main/java/com/github/manevolent/ts3j/protocol/header/PacketHeader.java

@@ -10,6 +10,7 @@ public abstract class PacketHeader {
     private final ProtocolRole role;
 
     //private final byte[] DEFAULT_MAC = new byte[] {0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0}; // 8x0's
+    private int packetGeneration;
     private byte[] mac = new byte[8]; // 8 bytes
     private int packetId = 0;
     private PacketType type;
@@ -100,4 +101,12 @@ public abstract class PacketHeader {
     public ProtocolRole getRole() {
         return role;
     }
+
+    public int getGeneration() {
+        return packetGeneration;
+    }
+
+    public void setGeneration(int packetGeneration) {
+        this.packetGeneration = packetGeneration;
+    }
 }

src/main/java/com/github/manevolent/ts3j/protocol/packet/handler/client/LocalClientHandlerConnecting.java

@@ -5,6 +5,7 @@ import com.github.manevolent.ts3j.command.part.CommandSingleParameter;
 import com.github.manevolent.ts3j.license.License;
 import com.github.manevolent.ts3j.protocol.NetworkPacket;
 import com.github.manevolent.ts3j.protocol.ProtocolRole;
+import com.github.manevolent.ts3j.protocol.client.ClientConnectionState;
 import com.github.manevolent.ts3j.protocol.client.LocalTeamspeakClient;
 import com.github.manevolent.ts3j.protocol.packet.Packet2Command;
 import com.github.manevolent.ts3j.protocol.packet.Packet8Init1;
@@ -200,12 +201,30 @@ public class LocalClientHandlerConnecting extends LocalClientHandler {
                 );
                 getClient().send(clientek);
 
+                Ts3Crypt.SecureChannelParameters secureChannelParameters =
                         Ts3Crypt.cryptoInit2(license, alphaBytes, omega, proof, beta, keyPair.getValue());
 
-                // send client init...
+                Packet2Command clientinit = new Packet2Command(ProtocolRole.CLIENT);
-
+                clientinit.setText(
-                // DONE!
+                        new SimpleCommand(
-
+                                "clientinit", ProtocolRole.CLIENT,
+                                new CommandSingleParameter("client_nickname", "test"),
+                                new CommandSingleParameter("client_version", "3.0.19.3"),
+                                new CommandSingleParameter("client_platform", "Windows"),
+                                new CommandSingleParameter("client_version_sign", "a1OYzvM18mrmfUQBUgxYBxYz2DUU6y5k3/mEL6FurzU0y97Bd1FL7+PRpcHyPkg4R+kKAFZ1nhyzbgkGphDWDg=="),
+                                new CommandSingleParameter("client_input_hardware", "true"),
+                                new CommandSingleParameter("client_output_hardware", "false"),
+                                new CommandSingleParameter("client_default_channel", ""),
+                                new CommandSingleParameter("client_default_channel_password", ""),
+                                new CommandSingleParameter("client_server_password", ""),
+                                new CommandSingleParameter("client_nickname_phonetic", "test"),
+                                new CommandSingleParameter("client_meta_data", ""),
+                                new CommandSingleParameter("client_default_token", ""),
+                                new CommandSingleParameter("client_key_offset", Long.toString(getClient().getLocalIdentity().getKeyOffset())),
+                                new CommandSingleParameter("hwid", "87056c6e1268aaf5055abf8256415e0e,408978b6d98810cc03f0aa16a4c75600")
+                        ).build()
+                );
+                getClient().send(clientinit);
             }
         }
     }

src/main/java/com/github/manevolent/ts3j/protocol/packet/transformation/PacketTransformation.java

@@ -45,7 +45,7 @@ public class PacketTransformation {
 
         temporaryByteBuffer.put((byte) (header.getRole() == ProtocolRole.SERVER ? 0x30 : 0x31));
         temporaryByteBuffer.put((byte) (header.getType().getIndex() & 0xFF));
-        temporaryByteBuffer.put((byte) 0); // TODO generation
+        temporaryByteBuffer.put((byte) (header.getGeneration() & 0xFF));
 
         if (key.length == 20) {
             //temporary[6 - 26] = SIV[0 - 20]
@@ -76,7 +76,11 @@ public class PacketTransformation {
         Pair<byte[], byte[]> parameters = computeParameters(packet.getHeader());
 
         // Write header (this is temporary)
-        ByteBuffer headerBuffer = packet.writeHeader(ByteBuffer.allocate(packet.getHeader().getSize()));
+        ByteBuffer headerBuffer = packet.writeHeader(
+                ByteBuffer
+                .allocate(packet.getHeader().getSize())
+                .order(ByteOrder.BIG_ENDIAN)
+        );
 
         // Get the header without a MAC for the associated text field
         byte[] headerWithoutMac = new byte[packet.getHeader().getSize() - MAC_LEN];
@@ -90,7 +94,7 @@ public class PacketTransformation {
         );
 
         int dataLen = packet.getPacket().getSize();
-        ByteBuffer packetBuffer = packet.writeBody(ByteBuffer.allocate(dataLen));
+        ByteBuffer packetBuffer = packet.writeBody(ByteBuffer.allocate(dataLen).order(ByteOrder.BIG_ENDIAN));
 
         byte[] result;
         int len;
@@ -116,6 +120,8 @@ public class PacketTransformation {
         // Rest of header
         outputBuffer.put(headerWithoutMac);
 
+        Ts3Logging.debug("WRITE HEADER: " + Ts3Logging.getHex(outputBuffer.array(), headerBuffer.limit()));
+
         // Encrypted body
         outputBuffer.put(result, 0, len - MAC_LEN);