MME2 changes - Propped commits from openmme/paging branch. Added scripts
for code gen

Change-Id: Ie55032217232214ac8544ca76ea34335205329e4
diff --git a/src/gtpV2Codec/ieClasses/remoteUserIdIe.cpp b/src/gtpV2Codec/ieClasses/remoteUserIdIe.cpp
new file mode 100644
index 0000000..c325e0e
--- /dev/null
+++ b/src/gtpV2Codec/ieClasses/remoteUserIdIe.cpp
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2019-present Infosys Limited  
+ *   
+ * SPDX-License-Identifier: Apache-2.0    
+ */
+/******************************************************************************
+ *
+ * This is an auto generated file.
+ * Please do not edit this file.
+ * All edits to be made through template source file
+ * <TOP-DIR/scripts/GtpV2StackCodeGen/tts/ietemplate.cpp.tt>
+ ******************************************************************************/
+
+#include "remoteUserIdIe.h"
+#include "dataTypeCodecUtils.h"
+
+RemoteUserIdIe::RemoteUserIdIe() 
+{
+    ieType = 192;
+    // TODO
+
+}
+
+RemoteUserIdIe::~RemoteUserIdIe() {
+    // TODO Auto-generated destructor stub
+}
+
+bool RemoteUserIdIe::encodeRemoteUserIdIe(MsgBuffer &buffer, RemoteUserIdIeData const &data)
+{
+    buffer.skipBits(6);
+
+    if(!(buffer.writeBits(data.imeifpresent, 1)))
+    {
+        errorStream.add((char *)"Encoding of imeifpresent failed\n");
+        return false;
+    }
+    if(!(buffer.writeBits(data.msisdnfpresent, 1)))
+    {
+        errorStream.add((char *)"Encoding of msisdnfpresent failed\n");
+        return false;
+    }
+    if (!(buffer.writeUint8(data.lengthofIMSI)))
+    {
+        errorStream.add((char *)"Encoding of lengthofIMSI failed\n");
+        return false;
+    }
+    if (!(DataTypeCodecUtils::encodeDigitRegister(buffer, data.imsi)))
+    {
+    errorStream.add((char *)"Encoding of imsi failed\n");
+    return false;
+    }
+    if (!(buffer.writeUint8(data.lengthOfMSISDN)))
+    {
+        errorStream.add((char *)"Encoding of lengthOfMSISDN failed\n");
+        return false;
+    }
+    if (!(DataTypeCodecUtils::encodeDigitRegister(buffer, data.msisdn)))
+    {
+    errorStream.add((char *)"Encoding of msisdn failed\n");
+    return false;
+    }
+    if (!(buffer.writeUint8(data.lengthOfIMEI)))
+    {
+        errorStream.add((char *)"Encoding of lengthOfIMEI failed\n");
+        return false;
+    }
+    if (!(DataTypeCodecUtils::encodeDigitRegister(buffer, data.imei)))
+    {
+    errorStream.add((char *)"Encoding of imei failed\n");
+    return false;
+    }
+
+    return true;
+}
+
+bool RemoteUserIdIe::decodeRemoteUserIdIe(MsgBuffer &buffer, RemoteUserIdIeData &data, Uint16 length)
+{     
+    // TODO optimize the length checks
+    
+    Uint16 ieBoundary = buffer.getCurrentIndex() + length;
+    buffer.skipBits(6);
+    if (buffer.getCurrentIndex() > ieBoundary)
+    {
+        errorStream.add((char *)"Attempt to read beyond IE boundary: \n");
+        return false;
+    }
+
+    data.imeifpresent = buffer.readBits(1);
+    // confirm that we are not reading beyond the IE boundary
+    if (buffer.getCurrentIndex() > ieBoundary)
+    {
+        errorStream.add((char *)"Attempt to read beyond IE boundary: imeifpresent\n");
+        return false;
+    }
+    data.msisdnfpresent = buffer.readBits(1);
+    // confirm that we are not reading beyond the IE boundary
+    if (buffer.getCurrentIndex() > ieBoundary)
+    {
+        errorStream.add((char *)"Attempt to read beyond IE boundary: msisdnfpresent\n");
+        return false;
+    }
+
+    buffer.readUint8(data.lengthofIMSI);
+    if (buffer.getCurrentIndex() > ieBoundary)
+    {
+        errorStream.add((char *)"Attempt to read beyond IE boundary: lengthofIMSI\n");
+        return false;
+    }
+
+    Uint16 lengthLeft = length;
+    lengthLeft = ieBoundary - buffer.getCurrentIndex();
+    if (!(DataTypeCodecUtils::decodeDigitRegister(buffer, data.imsi, lengthLeft)))
+    {
+        errorStream.add((char *)"Failed to decode: imsi\n");
+        return false;
+    }
+
+    buffer.readUint8(data.lengthOfMSISDN);
+    if (buffer.getCurrentIndex() > ieBoundary)
+    {
+        errorStream.add((char *)"Attempt to read beyond IE boundary: lengthOfMSISDN\n");
+        return false;
+    }
+    lengthLeft = ieBoundary - buffer.getCurrentIndex();
+    if (!(DataTypeCodecUtils::decodeDigitRegister(buffer, data.msisdn, lengthLeft)))
+    {
+        errorStream.add((char *)"Failed to decode: msisdn\n");
+        return false;
+    }
+
+    buffer.readUint8(data.lengthOfIMEI);
+    if (buffer.getCurrentIndex() > ieBoundary)
+    {
+        errorStream.add((char *)"Attempt to read beyond IE boundary: lengthOfIMEI\n");
+        return false;
+    }
+    lengthLeft = ieBoundary - buffer.getCurrentIndex();
+    if (!(DataTypeCodecUtils::decodeDigitRegister(buffer, data.imei, lengthLeft)))
+    {
+        errorStream.add((char *)"Failed to decode: imei\n");
+        return false;
+    }
+
+    // The IE is decoded now. The buffer index should be pointing to the 
+    // IE Boundary. If not, we have some more data left for the IE which we don't know
+    // how to decode
+    if (ieBoundary == buffer.getCurrentIndex())
+    {
+        return true;
+    }
+    else
+    {
+        errorStream.add((char *)"Unable to decode IE RemoteUserIdIe\n");
+        return false;
+    }
+}
+void RemoteUserIdIe::displayRemoteUserIdIe_v(RemoteUserIdIeData const &data, Debug &stream)
+{
+    stream.incrIndent();
+    stream.add((char *)"RemoteUserIdIeData:");
+    stream.incrIndent();
+    stream.endOfLine();
+  
+    stream.add( (char *)"imeifpresent: "); 
+    stream.add((Uint8)data.imeifpresent);
+    stream.endOfLine();
+  
+    stream.add( (char *)"msisdnfpresent: "); 
+    stream.add((Uint8)data.msisdnfpresent);
+    stream.endOfLine();
+  
+    stream.add((char *)"lengthofIMSI: ");
+    stream.add(data.lengthofIMSI);
+    stream.endOfLine();
+  
+    stream.add((char *)"imsi:");
+    stream.endOfLine();
+    DataTypeCodecUtils::displayDigitRegister_v(data.imsi, stream);
+  
+    stream.add((char *)"lengthOfMSISDN: ");
+    stream.add(data.lengthOfMSISDN);
+    stream.endOfLine();
+  
+    stream.add((char *)"msisdn:");
+    stream.endOfLine();
+    DataTypeCodecUtils::displayDigitRegister_v(data.msisdn, stream);
+  
+    stream.add((char *)"lengthOfIMEI: ");
+    stream.add(data.lengthOfIMEI);
+    stream.endOfLine();
+  
+    stream.add((char *)"imei:");
+    stream.endOfLine();
+    DataTypeCodecUtils::displayDigitRegister_v(data.imei, stream);
+    stream.decrIndent();
+    stream.decrIndent();
+}