Wireshark Generic Dissector

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What ?

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About Us

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What's New?

• Built-in functions

• default value for function parameter

• Const

• Local byte order

• Transform expressions

• Explicit call to sub dissector

• Wireshark pinfo data

• No Statement value

• Bit data

  bool1, int2 to int32, uint1 to uint32, enum1 to enum32

• Global data

• Functions

• enum symbolic name

  in any expression

• var/field full name

• Print expression

  Use print, to_string inside any expression

• Struct inline

  define a struct field without previous declaration

• var and set commands

  Create a variable Assign a value to a variable

Goal

Generic Dissector permits to display clearly your data inside wireshark.

Without Generic Dissector           With Generic Dissector

No code to do.
The description of your data is read from a text file.

Data format description

To describe your data, Generic Dissector provides the most simple syntax, including :
- basic types (integers, float, string ...)
- transform options (quantum, expression) to compute a value from the packet one
- display options (hex, oct, bin, printf format, expression)
- constaint specification (min and max values) to detect errors in data (red line)
- Array (fixed or variable size)
- Enum
- Bit field
- Structure
- Conditions and loops (if, while, do while, ...)
- Switch case
- Functions
- Global data
- subproto data

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