diff --git a/csn1.h b/csn1.h
new file mode 100644
index 0000000..5867fc4
--- /dev/null
+++ b/csn1.h
@@ -0,0 +1,574 @@
+/* csn1.h
+ * Declarations and types for CSN1 dissection in wireshark.
+ * By Vincent Helfre, based on original code by Jari Sassi
+ * with the gracious authorization of STE
+ * Copyright (c) 2011 ST-Ericsson
+ *
+ * $Id: packet-csn1.h 36306 2011-03-24 09:20:14Z etxrab $
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <BitVector.h>
+#include <iostream>
+#include <cstdlib>
+#ifndef _PACKET_CSN1_H_
+#define _PACKET_CSN1_H_
+
+
+#define MIN(a,b) (((a)<(b))?(a):(b))
+//#define max(a,b) (((a)>(b))?(a):(b))
+
+/* Error codes */
+#define  CSN_OK                               0
+#define  CSN_ERROR_GENERAL                   -1
+#define  CSN_ERROR_DATA_NOT_VALID            -2
+#define  CSN_ERROR_IN_SCRIPT                 -3
+#define  CSN_ERROR_INVALID_UNION_INDEX       -4
+#define  CSN_ERROR_NEED_MORE_BITS_TO_UNPACK  -5
+#define  CSN_ERROR_ILLEGAL_BIT_VALUE         -6
+#define  CSN_ERROR_INTERNAL                  -7
+#define  CSN_ERROR_STREAM_NOT_SUPPORTED      -8
+#define  CSN_ERROR_MESSAGE_TOO_LONG          -9
+#define  CSN_ERROR_                         -10
+
+#define FALSE (0)
+typedef signed int gint32;
+typedef signed short gint16;
+typedef int gint;
+typedef gint gboolean;
+typedef unsigned char guint8;
+typedef unsigned short guint16;
+typedef unsigned int guint32;
+typedef unsigned long guint64;
+/* CallBack return status */
+typedef gint16 CSN_CallBackStatus_t;
+
+#define  CSNCBS_OK                      0
+#define  CSNCBS_NOT_OK                -10
+#define  CSNCBS_NOT_TO_US             -11
+#define  CSNCBS_NOT_COMPLETE          -12
+
+#define CSNCBS_REVISION_LIMIT_STOP   -20 /* Stop packing/unpacking - revision limit */
+#define CSNCBS_NOT_SUPPORTED_IE      -21 /* Handling of the unpacked IE is not supported by MS-software */
+
+
+
+#ifndef ElementsOf
+#define ElementsOf(array) (sizeof(array) / sizeof(array[0]))
+#endif
+
+/* Context holding CSN1 parameters */
+typedef struct
+{
+  gint  remaining_bits_len;  /* IN to an csn stream operation */
+  gint  bit_offset;          /* IN/OUT to an csn stream operation */
+  gint  direction;           /* 0 - decode; 1 - encode */
+} csnStream_t;
+
+typedef gint16 (*StreamSerializeFcn_t)(csnStream_t* ar, BitVector *vector, size_t& readIndex, void* data);
+typedef enum
+{
+  CSN_END = 0,
+  CSN_BIT,
+  CSN_UINT,
+  CSN_TYPE,
+  CSN_CHOICE,
+  CSN_UNION,
+  CSN_UNION_LH,
+  CSN_UINT_ARRAY,
+  CSN_TYPE_ARRAY,
+  CSN_BITMAP,                /* Bitmap with constant: <bitmap: bit(64)> */
+  CSN_VARIABLE_BITMAP,       /* <N: bit (5)> <bitmap: bit(N + offset)> */
+  CSN_VARIABLE_BITMAP_1,     /* <bitmap: bit**> i.e. to the end of message (R99) */
+  CSN_LEFT_ALIGNED_VAR_BMP,  /* As variable bitmap but the result is left aligned (R99) */
+  CSN_LEFT_ALIGNED_VAR_BMP_1,/* As above only size is to the end of message (R99) */
+  CSN_VARIABLE_ARRAY,        /* Array with length specified in parameter: <N: bit(4)> <list: octet(N + offset)> */
+  CSN_VARIABLE_TARRAY,       /* Type Array with length specified in parameter: <N: bit(x)> <Type>*N */
+  CSN_VARIABLE_TARRAY_OFFSET,/* As above but with offset. The offset is stored as third parameter of CSN_DESCR (descr.value) */
+  CSN_RECURSIVE_ARRAY,       /* Recursive way to specify an array of uint:   <list> ::= {1 <number: bit(4) <list>|0}; */
+  CSN_RECURSIVE_TARRAY,      /* Recursive way to specify an array of type:   <list> ::= {1 <type>} ** 0 ; */
+  CSN_RECURSIVE_TARRAY_1,    /* same as above but first element always exist:<list> ::= <type> {1 <type>} ** 0 ; */
+  CSN_RECURSIVE_TARRAY_2,    /* same as above but with reversed separators :<lists> ::= <type> { 0 <type> } ** 1 ; */
+  CSN_EXIST,
+  CSN_EXIST_LH,
+  CSN_NEXT_EXIST,
+  CSN_NEXT_EXIST_LH,
+  CSN_NULL,
+  CSN_FIXED,
+  CSN_CALLBACK,
+  CSN_UINT_OFFSET,        /* unpack will add offset, inverse pack will subtract offset */
+  CSN_UINT_LH,            /* Low High extraction of int */
+  CSN_SERIALIZE,
+  CSN_TRAP_ERROR
+} csn_type_t;
+
+/******************************************************************************************
+ * CSN_DESCR structure:
+ *
+ * type:
+ *       This is the CSN type. All existing types are specified in the section above.
+ *
+ * i:
+ *       Depending on the contents of the type parameter,  the parameter "i" may have following meaning:
+ *       - specifies the number of bits for the CSN_UINT type
+ *       - the offset for an array size by which the size is incremented
+ *          for the CSN_VAR_ARRAY type
+ *       - the length of each element of an array for the CSN_REC_ARRAY type
+ *       - the number of the elements in an array for the CSN_TYPE_ARRAY type
+ *       - the offset to the variable keeping the number of elements of an array for in the CSN_VAR_TARRAY type
+ *       - the number of different data types in a union for the CSN_UNION, CSN_UNION_LH, and  for the CSN_CHOICE types
+ *       - the length in bits of the fixed number defined for  the CSN_FIXED type
+ *       - the number of lines to skip in the CSN_DESCR type specified for the  CSN_NEXT_EXIST, CSN_NEXT_EXIST_LH,
+ *          CSN_NEXT_EXIST_OR_NULL, and CSN_NEXT_EXIST_OR_NULL_LH types
+ *       - the number of bits in a bitmap for the CSN_BITMAP type
+ *       - the value by which the number of bits in a bitmap has to be incremented or decremented for the
+ *          CSN_VAR_BITMAP, CSN_LEFT_VAR_BMP, and CSN_LEFT_BMP_1 types
+ *       - the offset to param1 for the CSN_CALLBACK type
+ *       - ERRORCODE  used by the CSN_ERROR type
+ *
+ * descr
+ *       This parameter has different meaning depending on the value of the type parameter:
+ *       - the offset for  the CSN_UINT_OFFSET type
+ *       - the number of the elements in an array of the CSN_UINT_ARRAY type
+ *       - the offset to the parameter where the size of the array has to be stored for the CSN_REC_ARRAY type
+ *       - the address of the internal structure, describing the member type (by means of the CSN_DESCR type) in the
+ *          CSN_TYPE_ARRAY, CSN_VAR_TARRAY, and CSN_TYPE types
+ *       - the address of the variable of type CSN_ChoiceElement_t describing all elements in the CSN_CHOICE type union
+ *       - the offset to the variable where the number of bits has to be or is stored for the CSN_VAR_BITMAP,
+ *          CSN_LEFT_VAR_BMP, and CSN_LEFT_BMP_1 types
+ *       - the function number (case number) for the CSN_CALLBACK and CSN_CALLBACK_NO_ARGS types
+ *       - the free text used by the CSN_TRAP_ERROR
+ *
+ * offset
+ *         This is an offset to the _MEMBER parameter counting from the beginning of struct
+ *         where the unpacked or packed value shall be stored or fetched. The meaning of the _MEMBER parameter
+ *         varies depending on the type which is specified  and so is the meaning of the offset parameter.
+ *         Some types (and corresponding macros) do not have the _MEMBER parameter and then the offset parameter
+ *         is not used or is different from the offset to the _MEMBER.
+ *         - the fixed value for the CSN_FIXED type
+ *         - an offset to the variable UnionType for CSN_UNION and CSN_UNION_LH types
+ *         - an offset to the variable Exist for CSN_NEXT_EXIST and CSN_NEXT_EXIST_LH types
+ *         - an offset to param2 in the CSN_CALLBACK  type
+ *
+ * sz
+ *    - is the name of the parameter within the descr where their unpacked or packed value shall be stored or fetched.
+ *      This paramater is pointed out by the offset parameter in the same CSN_DESCR variable as the sz.
+ *    - the free text used by the CSN_TRAP_ERROR (the same as parameter "i")
+ *
+ * serialize
+ *    - stores the size of _MEMBER type in case of the M_TYPE_ARRAY and M_VAR_TARRAY,
+ *    - the address of the function which is provided by the M_SERIALIZE type.
+ ******************************************************************************************/
+
+
+typedef struct
+{
+  gint16      type;
+  gint16      i;
+  union
+  {
+    void*     ptr;
+    guint32   value;
+  } descr;
+  size_t      offset;
+  const char* sz;
+  union
+  {
+    StreamSerializeFcn_t  fcn;
+    guint32               value;
+    int*                  hf_ptr;
+  } serialize;
+} CSN_DESCR;
+
+typedef struct
+{
+  guint8     bits;
+  guint8     value;
+  CSN_DESCR descr;
+} CSN_ChoiceElement_t;
+
+void csnStreamInit(csnStream_t* ar,gint BitOffset,gint BitCount);
+
+/******************************************************************************
+* FUNCTION:  csnStreamDecoder
+* DESCRIPTION:
+*            UnPacks data from bit stream. According to CSN description.
+* ARGS:
+*   ar        stream will hold the parameters to the pack function
+*            ar->remaining_bits_len    [IN] Number of bits to unpack [OUT] number of bits left to unpack.
+*            ar->bit_offset            [IN/OUT] is the current bit where to proceed with the next bit to unpack.
+
+*   pDescr    CSN description.
+*   tvb       buffer containing the bit stream to unpack.
+*   data      unpacked data.
+*   ett_csn1  tree
+*
+* RETURNS:  int  Number of bits left to be unpacked. Negative Error code if failed to unpack all bits
+******************************************************************************/
+
+gint16 csnStreamDecoder(csnStream_t* ar, const CSN_DESCR* pDescr, BitVector *vector, size_t& readIndex, void* data);
+
+gint16 csnStreamEncoder(csnStream_t* ar, const CSN_DESCR* pDescr, BitVector *vector, size_t& readIndex, void* data);
+
+/* CSN struct macro's */
+#define  CSN_DESCR_BEGIN(_STRUCT)\
+        CSN_DESCR CSNDESCR_##_STRUCT[] = {
+
+#define  CSN_DESCR_END(_STRUCT)\
+        {CSN_END, 0, {0}, 0, "", {(StreamSerializeFcn_t)0}} };
+
+/******************************************************************************
+ * CSN_ERROR(Par1, Par2, Par3)
+ * May be called at any time when an abort of packing or unpacking of a message
+ * is desired
+ *      Par1: C structure name
+ *      Par2: free text which will appear in the error handler
+ *      Par3: Error code
+ *****************************************************************************/
+#define CSN_ERROR(_STRUCT, _Text, _ERRCODE)\
+        {CSN_TRAP_ERROR, _ERRCODE, {(void*)_Text}, 0, _Text, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_BIT(Par1, Par2)
+ * Defines one bit element in the CSN1 syntax.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *****************************************************************************/
+#define M_BIT(_STRUCT, _MEMBER)\
+        {CSN_BIT, 0, {0}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_NEXT_EXIST(Par1, Par2, Par3)
+ * Indicates whether the next element or a group of elements defined in the 
+ * structure is present or not.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: number of lines to skip in the CSN_DESCR type specified if the
+ *            element(s) does not exist
+ *****************************************************************************/
+#define M_NEXT_EXIST(_STRUCT, _MEMBER, _NoOfExisting)\
+        {CSN_NEXT_EXIST, _NoOfExisting, {0}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_NEXT_EXIST_LH(Par1, Par2, Par3)
+ * similar to the M_NEXT_EXIST except that instead of bit 0/1 which is fetched
+ * from the message in order to find out whether the next element/elements are
+ * present in the message, the logical operation XOR with the background 
+ * pattern 0x2B is performed on the read bit before the decision is made.
+ *****************************************************************************/
+#define M_NEXT_EXIST_LH(_STRUCT, _MEMBER, _NoOfExisting)\
+        {CSN_NEXT_EXIST_LH, _NoOfExisting, {0}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_NEXT_EXIST_OR_NULL(Par1, Par2, Par3)
+ * Similar to the M_NEXT_EXIST except that not only bit 0 or 1 but also the end
+ * of the message may be encountered when looking for the next element in the 
+ * message.
+ * Covers the case {null | 0 | 1 < IE >} 
+ *****************************************************************************/
+#define M_NEXT_EXIST_OR_NULL(_STRUCT, _MEMBER, _NoOfExisting)\
+        {CSN_NEXT_EXIST, _NoOfExisting, {(void*)1}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_NEXT_EXIST_OR_NULL_LH(Par1, Par2, Par3)
+ * Similar to the M_NEXT_EXIST_LH except that not only bit 0 or 1 but also the
+ * end of the message may be encountered when looking for the next element in
+ * the message.
+ * Covers the case {null | L | H < IE >} 
+ *****************************************************************************/
+#define M_NEXT_EXIST_OR_NULL_LH(_STRUCT, _MEMBER, _NoOfExisting)\
+        {CSN_NEXT_EXIST_LH, _NoOfExisting, {(void*)1}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_UINT(Par1, Par2, Par3)
+ * Defines an integer number.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: number of bits used to code the element (between 1 and 32)
+ *****************************************************************************/
+#define M_UINT(_STRUCT, _MEMBER, _BITS)\
+        {CSN_UINT, _BITS, {(void*)1}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_UINT(Par1, Par2, Par3)
+ * This macro has the same functionality as M_UINT except that  in addition the
+ * logical "exclusive or" operation with the background value "0x2B" is 
+ * performed before the final value of the integer number is delivered from the 
+ * received CSN.1 message
+ *****************************************************************************/
+#define M_UINT_LH(_STRUCT, _MEMBER, _BITS)\
+        {CSN_UINT_LH, _BITS, {(void*)1}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_UINT_OFFSET(Par1, Par2, Par3, Par4)
+ * Defines an integer number.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: number of bits used to code the element (between 1 and 32)
+ *      Par4: value added to the returned integer (offset)
+ *****************************************************************************/
+#define M_UINT_OFFSET(_STRUCT, _MEMBER, _BITS, _OFFSET)\
+        {CSN_UINT_OFFSET, _BITS, {(void*)_OFFSET}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_UINT_ARRAY(Par1, Par2, Par3, Par4)
+ * Defines an array of integer numbers. The size of the array is fixed.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: number of bits used to code the each integer element (between 1 and 32)
+ *      Par4: number of elements in the array (fixed integer value)
+ *****************************************************************************/
+#define M_UINT_ARRAY(_STRUCT, _MEMBER, _BITS, _ElementCount)\
+        {CSN_UINT_ARRAY, _BITS, {(void*)_ElementCount}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_VAR_UINT_ARRAY(Par1, Par2, Par3, Par4)
+ * Defines an array of integer numbers. The size of the array is variable.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: number of bits used to code the each integer element (between 1 and 32)
+ *      Par4: number of elements in the array supplied by reference to the
+ *            structure member holding the length value
+ *****************************************************************************/
+#define M_VAR_UINT_ARRAY(_STRUCT, _MEMBER, _BITS, _ElementCountField)\
+        {CSN_UINT_ARRAY, _BITS, {(void*)offsetof(_STRUCT, _ElementCountField)}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)1}}
+
+/******************************************************************************
+ * M_VAR_ARRAY(Par1, Par2, Par3, Par4)
+ * Defines an array of 8 bit large integer numbers. The size of the array is variable.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: name of the structure member holding the size of the array
+ *      Par4: offset that is added to the Par3 to get the actual size of the array
+ *****************************************************************************/
+#define M_VAR_ARRAY(_STRUCT, _MEMBER, _ElementCountField, _OFFSET)\
+        {CSN_VARIABLE_ARRAY, _OFFSET, {(void*)offsetof(_STRUCT, _ElementCountField)}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_VAR_TARRAY(Par1, Par2, Par3, Par4)
+ * Similar to M_TYPE_ARRAY except that the size of the array is variable.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: the type of each element of the array
+ *      Par4: name of the structure member holding the size of the array
+ *****************************************************************************/
+#define M_VAR_TARRAY(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField)\
+        {CSN_VARIABLE_TARRAY, offsetof(_STRUCT, _ElementCountField), {(void*)CSNDESCR_##_MEMBER_TYPE}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)}}
+
+/******************************************************************************
+ * M_VAR_TARRAY_OFFSET(Par1, Par2, Par3, Par4)
+ * Same as M_VAR_TARRAY with offset
+ *****************************************************************************/
+#define M_VAR_TARRAY_OFFSET(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField)\
+        {CSN_VARIABLE_TARRAY_OFFSET, offsetof(_STRUCT, _ElementCountField), {(void*)CSNDESCR_##_MEMBER_TYPE}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)}}
+
+/******************************************************************************
+ * M_REC_ARRAY(Par1, Par2, Par3, Par4)
+ * similar to the M_VAR_ARRAY. The difference is that the size of the array is 
+ * not known in advance and it has to be calculated during unpacking. Its value
+ * is stored in a variable which belongs to the same structure as the array. 
+ * A zero element terminates the array. The CSN.1 syntax describes it 
+ * recursively as:
+ * <array> ::={1 <element> <array>| 0} 
+ *
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: name of the structure member where the calculated the size of the 
+ *            array will be stored
+ *      Par4: length of each element in bits
+ *****************************************************************************/
+#define M_REC_ARRAY(_STRUCT, _MEMBER, _ElementCountField, _BITS)\
+        {CSN_RECURSIVE_ARRAY, _BITS, {(void*)offsetof(_STRUCT, _ElementCountField)}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_VAR_TYPE_ARRAY(Par1, Par2, Par3, Par4)
+ * Defines an array of structures. The size of the array is variable.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: name of the structure
+ *      Par4: number of elements in the array (fixed integer value)
+ *****************************************************************************/
+#define M_TYPE_ARRAY(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCount)\
+        {CSN_TYPE_ARRAY, _ElementCount, {(void*)CSNDESCR_##_MEMBER_TYPE}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)}}
+
+/******************************************************************************
+ * M_REC_TARRAY(Par1, Par2, Par3, Par4)
+ * Defines an recursive array of structures. The size of the array is variable.
+ * <list> ::= {1 <type>} ** 0 ;
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: name of the structure
+ *      Par4: will hold the number of element in the array after unpacking
+ *****************************************************************************/
+#define M_REC_TARRAY(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField)\
+        {CSN_RECURSIVE_TARRAY, offsetof(_STRUCT, _ElementCountField), {(void*)CSNDESCR_##_MEMBER_TYPE}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)}}
+
+/******************************************************************************
+ * M_REC_TARRAY1(Par1, Par2, Par3, Par4)
+ * Same as M_REC_TARRAY but first element always exist:
+ * <list> ::= <type> {1 <type>} ** 0 ;
+ *****************************************************************************/
+#define M_REC_TARRAY_1(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField)\
+        {CSN_RECURSIVE_TARRAY_1, offsetof(_STRUCT, _ElementCountField), {(void*)CSNDESCR_##_MEMBER_TYPE}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)}}
+
+/******************************************************************************
+ * M_REC_TARRAY2(Par1, Par2, Par3, Par4)
+ * Same as M_REC_TARRAY but with reversed separators :
+ * <lists> ::= <type> { 0 <type> } ** 1 ;
+ *****************************************************************************/
+#define M_REC_TARRAY_2(_STRUCT, _MEMBER, _MEMBER_TYPE, _ElementCountField)\
+        {CSN_RECURSIVE_TARRAY_2, offsetof(_STRUCT, _ElementCountField), {(void*)CSNDESCR_##_MEMBER_TYPE}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)sizeof(_MEMBER_TYPE)}}
+
+/******************************************************************************
+ * M_TYPE(Par1, Par2, Par3)
+ * Defines a reference to a structure which is described elsewhere
+ * <list> ::= {1 <type>} ** 0 ;
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: type of member
+ *****************************************************************************/
+#define M_TYPE(_STRUCT, _MEMBER, _MEMBER_TYPE)\
+        {CSN_TYPE, 0, {(void*)CSNDESCR_##_MEMBER_TYPE}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_UNION(Par1, Par2)
+ * Informs the CSN.1 library that a union follows and how many possible choices
+ * there are in the union. The actual value of the choice, which points out the
+ * chosen element of the union is stored in the uint8 variable and is usually 
+ * called UnionType. The elements of the union have to be listed directly after 
+ * the M_UNION statement.
+ *      Par1: C structure name
+ *      Par2: number of possible choice in the union
+ *****************************************************************************/
+#define M_UNION(_STRUCT, _COUNT)\
+        {CSN_UNION, _COUNT, {0}, offsetof(_STRUCT, UnionType), "UnionType", {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_UNION_LH(Par1, Par2)
+ * Same as M_UNION but masked with background value 0x2B
+ *****************************************************************************/
+#define M_UNION_LH(_STRUCT, _COUNT)\
+        {CSN_UNION_LH, _COUNT, {0}, offsetof(_STRUCT, UnionType), "UnionType", {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_CHOICE(Par1, Par2, Par3, Par4)
+ * Similar to the M_UNION. In the M_UNION the selected element of all possible 
+ * choices in the union is referred as a sequential numbers,  i.e., the first 
+ * choice is addressed as choice 0 the second as choice 1, the third as choice 
+ * 2 and so on, both in the encoded message and in the variable UnionType which
+ * is the part of the message.  In the CSN_CHOICE case, this rule does not 
+ * apply. There is free but predefined mapping of the element of the union and 
+ * the value which addresses this element.
+ * The value of the address is called a selector.
+ * After unpacking, this value is then converted to the sequential number of the
+ * element in the union and stored in the UnionType variable.
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: address of an array of type CSN_ChoiceElement_t where all possible
+ *            values of the selector are provided, together with the selector 
+ *            length expressed in bits and the address of  the CSN_DESCR type 
+ *            where the element is defined. For every element in the union 
+ *            there is one line in the Choice variable. These lines have to 
+ *            appear in the _CHOICE in the same order as the elements in the 
+ *            union. The element of the union selected in the message through 
+ *            the _CHOICE parameter is after unpacking translated to the 
+ *            corresponding sequential number of this element and stored in 
+ *            the variable pointed out by the _MEMBER
+ *      Par4: number of possible choices in the union
+ *****************************************************************************/
+#define M_CHOICE(_STRUCT, _MEMBER, _CHOICE, _ElementCount)\
+        {CSN_CHOICE, _ElementCount, {(void*)_CHOICE}, offsetof(_STRUCT, _MEMBER), #_CHOICE, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_FIXED(Par1, Par2, Par3)
+ * Defines a fixed value of type integer which should be fetched from or stored 
+ * in  the message
+ *      Par1: C structure name
+ *      Par2: gives the length of the fixed number in bits.
+ *      Par3: the value of the number. If the expected value is not present in 
+*             the message the unpacking procedure is aborted
+ *****************************************************************************/
+#define M_FIXED(_STRUCT, _BITS, _BITVALUE)\
+        {CSN_FIXED, _BITS, {0}, _BITVALUE, #_BITVALUE, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_SERIALIZE(Par1, Par2, Par3)
+ * Allows using a complete free format of data being encoded or decoded. 
+ * When the M_SERIALIZE is uncounted during encoding or decoding of a message 
+ * the CSNstream program passes the control over to the specified function 
+ * together with all necessary parameters about the current position within 
+ * the message being unpacked or packed.  When transferring of "serialized" 
+ * data to or from the message is finished by the function the CSNstream gets 
+ * back control over the data stream and continues to work with the message.
+ *****************************************************************************/
+#define M_SERIALIZE(_STRUCT, _MEMBER, _SERIALIZEFCN)\
+        {CSN_SERIALIZE, 1, {0}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {_SERIALIZEFCN}}
+
+#define M_CALLBACK(_STRUCT, _CSNCALLBACKFCN, _PARAM1, _PARAM2)\
+        {CSN_CALLBACK, offsetof(_STRUCT, _PARAM1), {_CSNCALLBACKFCN}, offsetof(_STRUCT, _PARAM2), "CallBack_"#_CSNCALLBACKFCN, {(StreamSerializeFcn_t)0}}
+
+/******************************************************************************
+ * M_BITMAP(Par1, Par2, Par3)
+ * Defines a type which consists of a bitmap. The size of the bitmap in bits 
+ * is fixed and provided by the parameter Par3
+ *      Par1: C structure name
+ *      Par2: C structure element name
+ *      Par3: length of the bitmap expressed in bits
+ *****************************************************************************/
+#define M_BITMAP(_STRUCT, _MEMBER, _BITS)\
+        {CSN_BITMAP, _BITS, {0}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/* variable length, right aligned bitmap i.e. _ElementCountField = 11 => 00000111 11111111 */
+#define M_VAR_BITMAP(_STRUCT, _MEMBER, _ElementCountField, _OFFSET)\
+        {CSN_VARIABLE_BITMAP, _OFFSET, {(void*)offsetof(_STRUCT, _ElementCountField)}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/* variable length, right aligned bitmap filling the rest of message
+ * - when unpacking the _ElementCountField will be set in runtime
+ * - when packing _ElementCountField contains the size of bitmap
+ */
+#define M_VAR_BITMAP_1(_STRUCT, _MEMBER, _ElementCountField, _OFFSET)\
+        {CSN_VARIABLE_BITMAP_1, _OFFSET, {(void*)offsetof(_STRUCT, _ElementCountField)}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/* variable length, left aligned bitmap i.e. _ElementCountField = 11 => 11111111 11100000 */
+#define M_LEFT_VAR_BMP(_STRUCT, _MEMBER, _ElementCountField, _OFFSET)\
+        {CSN_LEFT_ALIGNED_VAR_BMP, _OFFSET, {(void*)offsetof(_STRUCT, _ElementCountField)}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+/* variable length, left aligned bitmap filling the rest of message
+ *- when unpacking the _ElementCountField will be set in runtime
+ * - when packing _ElementCountField contains the size of bitmap
+ */
+#define M_LEFT_VAR_BMP_1(_STRUCT, _MEMBER, _ElementCountField, _OFFSET)\
+        {CSN_LEFT_ALIGNED_VAR_BMP_1, _OFFSET, {(void*)offsetof(_STRUCT, _ElementCountField)}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+#define M_NULL(_STRUCT, _MEMBER)\
+        {CSN_NULL, 0, {0}, offsetof(_STRUCT, _MEMBER), #_MEMBER, {(StreamSerializeFcn_t)0}}
+
+#define M_THIS_EXIST(_STRUCT)\
+        {CSN_EXIST, 0, {0}, offsetof(_STRUCT, Exist), "Exist", {(StreamSerializeFcn_t)0}}
+
+#define M_THIS_EXIST_LH(_STRUCT)\
+        {CSN_EXIST_LH, 0, {0}, offsetof(_STRUCT, Exist), "Exist", {(StreamSerializeFcn_t)0}}
+
+/* return value 0 if ok else discontionue the unpacking */
+typedef gint16 (*CsnCallBackFcn_t)(void* pv ,...);
+
+#define CSNDESCR(_FuncType) CSNDESCR_##_FuncType
+
+#endif /*_PACKET_CSN1_H_*/