add some comments

[iotcloud.git] / src / java / iotcloud / RejectedMessage.java

diff --git a/src/java/iotcloud/RejectedMessage.java b/src/java/iotcloud/RejectedMessage.java
index 167521ff3ad02eeae2805e5049e5a367c15ac91f..0f0bfd008ccbcd03e8196b8549d0ab0e8fb0eb8b 100644 (file)
--- a/src/java/iotcloud/RejectedMessage.java
+++ b/src/java/iotcloud/RejectedMessage.java
@@ -1,11 +1,25 @@
 package iotcloud;
 import java.nio.ByteBuffer;
 
+/**
+ * Entry for tracking messages that the server rejected.  We have to
+ * make sure that all clients know that this message was rejected to
+ * prevent the server from reusing these messages in an attack.
+ * @author Brian Demsky
+ * @version 1.0
+ */
+
+
 class RejectedMessage extends Entry {
+       /* Machine identifier */
        private long machineid;
-       private long oldseqnum;                                                                                                                                                                                                                                                                                                                                                                                         //Oldest seqnum in range
-       private long newseqnum;                                                                                                                                                                                                                                                                                                                                                                                         //Newest seqnum in range (inclusive)
-       private boolean equalto;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        //Is message sent or not sent by machineid
+       /* Oldest sequence number in range */
+       private long oldseqnum;
+       /* Newest sequence number in range */
+       private long newseqnum;
+       /* Is the machine identifier of the relevant slots equal to (or not
+        * equal to) the specified machine identifier. */
+       private boolean equalto;
 
        RejectedMessage(Slot slot, long _machineid, long _oldseqnum, long _newseqnum, boolean _equalto) {
                super(slot);