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Sim-emulator

Programmatic simcard open source emulator.

Dependencies

Make, gcc, Python

Current state

  • Currently only at initial stage with no functional
  • Basic system for building simcard filesystem is implemented

Configuring filesystem of simcard emulator

  • To add a file just add it to where it belongs relative to MF directory
  • For dedicated files (DF) additional files with information supplied, see .desc files under MF for each dedicated file
  • For entry files (EF) format is as follows:
    • First line: TRN or LIN - transparent of linear EF
    • Second line: fid in hex starting with 0x
    • Third line: Short fid (sfid), hex
    • Fourth line: Description text
    • Fifth line: Record max length for linear EF
    • Sixth line: File size for transparent EF, for linear file it is calculated during parsing
    • Seventh line: Data in hex each two symob for a byte for transparent EF
    • For linear EF Seventh and further lines each represent data for subsequent records

At the moment most of the data in files is copied from Pysim project just for reference, and probably needs to be edited in the future

make

will first check if MF directory has changed. If changed, translatefs.py is launched, which generates fs.inc file. It contains macros sequence which is understood by gcc at the step of building project

TODO

  • Add apdu command handling
  • Add GSM authentication algorythm

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