angefangen message zu implementieren

src/bin/message.rs

+const KEYLENGTH: u8 = 32;
+
+pub enum PayloadType {
+    //0-31 system messages (plaintext)
+    Ping = 1,
+    Pong = 2,
+    Error = 3,
+    //32 - 63 Serverside messages (currently plaintext)
+    Init = 32,
+    Join = 33,
+    Exit = 34,
+    //64 -95 initial setup messages(plaintext)
+    DhSetup = 64,
+    DhReturn = 65,
+    //96 - 127 client-client setup messages(DH or old KEY encrypted)
+    AUTHORIZE = 96,
+    KeyCurrent = 97,
+    KeyNew = 98,
+    //128-159 main messages (shared KEY encrypted)
+    Msg = 128,
+    //160-255 reserved
+}
+
+struct Message {
+    // Eigenschaften der Klasse
+    src_id: u32,
+    dest_id: u32,
+    size: u16,
+    payload: Vec<u8>,
+}
+
+impl Message {
+    fn new(src_id: u32, dest_id: u32, size: u16, msg_type: PayloadType) -> Message {
+        let mut msg = Message {
+            src_id: src_id,
+            dest_id: dest_id,
+            size: size,
+            payload: Vec::with_capacity(size.into()),
+        };
+        msg.payload[0] = msg_type as u8;
+        msg
+    }
+    // Methoden der Klasse
+}