--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/vpnmanager/src/uuid.cpp	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,125 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Create a new UID for the policy.
+*
+*/
+
+
+
+#include <random.h>
+
+#include "uuid.h"
+
+void Uuid::MakeUuidL(TUuid& aUuid, TUuidVersion aVersion)
+/**
+ * Generate a UUID of the specified version.
+ * NOTE. As of this writing, only version 4
+ * (ERandomBased) is supported
+ **/
+    {
+    // We currently support only version 4
+    if (aVersion != ERandomBased)
+        {
+        User::Leave(KErrNotSupported);
+        }
+    
+    /* Fill UUID with random data */
+    RandomizeL(aUuid);
+
+    /* Brand UUID with version and variant */
+    Brand(aUuid, aVersion);
+    }
+
+void Uuid::RandomizeL(TUuid& aUuid)
+/**
+ * Fill the UUID with pseudo-random data
+ */
+    {
+    // Delegate the task to the Symbian Random Number Generator
+    // (we trust that it is the best alternative available)
+    
+    TPckg<TUuid> pckgUuid(aUuid);
+    TRandom::RandomL(pckgUuid);
+    }
+
+void Uuid::Brand(TUuid& aUuid, TUuidVersion aVersion)
+/**
+ * Set variant and version information to the UUID
+ */
+    {
+    // We currently support only UUID version 4
+    if (aVersion != ERandomBased)
+        {
+        return;
+        }
+
+    // First set the variant information to value:
+    //     Msb0     Msb1    Msb2
+    //     1        0       x
+    // as specified in draft-mealling-uuid-urn-05.txt
+    // (a variable number of the most significant bits
+    // of the eight octet of the UUID, i.e. the
+    // clock_seq_hi_and_reserved octet)
+    aUuid.iClockSeqHiAndReserved &= 0x3F;     // Set Msb0 and Msb1 to 0, take the rest "as-is"
+    aUuid.iClockSeqHiAndReserved |= (1 << 7); // Set Msb0 to 1
+
+    // Then set the version number to indicate version 4
+    //     Msb0     Msb1    Msb2    Msb3
+    //     0        1       0       0
+    // as specified in draft-mealling-uuid-urn-05.txt
+    // (in the most significant four bits of the time
+    // stamp)
+    aUuid.iTimeHiAndVersion &= 0x0FFF;    // Set Msb0-Msb3 to 0, take the rest "as-is"
+    aUuid.iTimeHiAndVersion |= (1 << 14); // Set Msb1 to 1
+    }
+
+void Uuid::UuidToString(const TUuid& aUuid, TUuidString& aUuidString)
+/**
+ * Create and return a string representation of the given UUID.
+ * E.g. f81d4fae-7dec-11d0-a765-00a0c91e6bf6
+ */
+    {
+    aUuidString.Format(KUuidFormatString,
+                       static_cast<TUint>(aUuid.iTimeLow),
+                       static_cast<TUint>(aUuid.iTimeMid),
+                       static_cast<TUint>(aUuid.iTimeHiAndVersion),
+                       static_cast<TUint>(aUuid.iClockSeqHiAndReserved),
+                       static_cast<TUint>(aUuid.iClockSeqLow),
+                       static_cast<TUint>(aUuid.iNode[0]),
+                       static_cast<TUint>(aUuid.iNode[1]),
+                       static_cast<TUint>(aUuid.iNode[2]),
+                       static_cast<TUint>(aUuid.iNode[3]),
+                       static_cast<TUint>(aUuid.iNode[4]),
+                       static_cast<TUint>(aUuid.iNode[5]));
+    }
+
+void Uuid::UuidToString(const TUuid& aUuid, TUuidString8& aUuidString)
+/**
+ * Create and return a string representation of the given UUID.
+ * E.g. f81d4fae-7dec-11d0-a765-00a0c91e6bf6
+ */
+    {
+    aUuidString.Format(KUuidFormatString8,
+                       static_cast<TUint>(aUuid.iTimeLow),
+                       static_cast<TUint>(aUuid.iTimeMid),
+                       static_cast<TUint>(aUuid.iTimeHiAndVersion),
+                       static_cast<TUint>(aUuid.iClockSeqHiAndReserved),
+                       static_cast<TUint>(aUuid.iClockSeqLow),
+                       static_cast<TUint>(aUuid.iNode[0]),
+                       static_cast<TUint>(aUuid.iNode[1]),
+                       static_cast<TUint>(aUuid.iNode[2]),
+                       static_cast<TUint>(aUuid.iNode[3]),
+                       static_cast<TUint>(aUuid.iNode[4]),
+                       static_cast<TUint>(aUuid.iNode[5]));
+    }