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pySim - Read, Write and Browse Programmable SIM/USIM/ISIM/HPSIM Cards

This repository contains a number of Python programs that can be used to read, program (write) and browse all fields/parameters/files on SIM/USIM/ISIM/HPSIM cards used in 3GPP cellular networks from 2G to 5G.

Note that the access control configuration of normal production cards issue by operators will restrict significantly which files a normal user can read, and particularly write to.

The full functionality of pySim hence can only be used with on so-called programmable SIM/USIM/ISIM/HPSIM cards.

Such SIM/USIM/ISIM/HPSIM cards are special cards, which - unlike those issued by regular commercial operators - come with the kind of keys that allow you to write the files/fields that normally only an operator can program.

This is useful particularly if you are running your own cellular network, and want to configure your own SIM/USIM/ISIM/HPSIM cards for that network.

Homepage

Please visit the official homepage for usage instructions, manual and examples.

Documentation

The pySim user manual can be built from this very source code by means of sphinx (with sphinxcontrib-napoleon and sphinx-argparse). See the Makefile in the 'docs' directory.

A pre-rendered HTML user manual of the current pySim 'git master' is available from https://downloads.osmocom.org/docs/latest/pysim/ and a downloadable PDF version is published at https://downloads.osmocom.org/docs/latest/osmopysim-usermanual.pdf.

A slightly dated video presentation about pySim-shell can be found at https://media.ccc.de/v/osmodevcall-20210409-laforge-pysim-shell.

pySim-shell vs. legacy tools

While you will find a lot of online resources still describing the use of pySim-prog.py and pySim-read.py, those tools are considered legacy by now and have by far been superseded by the much more capable pySim-shell. We strongly encourage users to adopt pySim-shell, unless they have very specific requirements like batch programming of large quantities of cards, which is about the only remaining use case for the legacy tools.

Git Repository

You can clone from the official Osmocom git repository using

git clone https://gitea.osmocom.org/sim-card/pysim.git

There is a web interface at https://gitea.osmocom.org/sim-card/pysim.

Installation

Please install the following dependencies:

  • bidict
  • cmd2 >= 1.5.0
  • colorlog
  • construct >= 2.9.51
  • pyosmocom
  • jsonpath-ng
  • packaging
  • pycryptodomex
  • pyscard
  • pyserial
  • pytlv
  • pyyaml >= 5.1
  • smpp.pdu (from github.com/hologram-io/smpp.pdu)
  • termcolor

Example for Debian:

sudo apt-get install --no-install-recommends \
	pcscd libpcsclite-dev \
	python3 \
	python3-setuptools \
	python3-pycryptodome \
	python3-pyscard \
	python3-pip
pip3 install --user -r requirements.txt

After installing all dependencies, the pySim applications pySim-read.py, pySim-prog.py and pySim-shell.py may be started directly from the cloned repository.

In addition to the dependencies above pySim-trace.py requires tshark and the python package pyshark to be installed. It is known that the tshark package in Debian versions before 11 may not work with pyshark.

Archlinux Package

Archlinux users may install the package python-pysim-git from the Arch User Repository (AUR). The most convenient way is the use of an AUR Helper, e.g. yay or pacaur. The following example shows the installation with yay.

# Install
yay -Sy python-pysim-git

# Uninstall
sudo pacman -Rs python-pysim-git

Forum

We welcome any pySim related discussions in the SIM Card Technology section of the osmocom discourse (web based Forum).

Mailing List

There is no separate mailing list for this project. However, discussions related to pySim are happening on the simtrace [email protected] mailing list, please see https://lists.osmocom.org/mailman/listinfo/simtrace for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.

Issue Tracker

We use the issue tracker of the pysim project on osmocom.org for tracking the state of bug reports and feature requests. Feel free to submit any issues you may find, or help us out by resolving existing issues.

Contributing

Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards

We are using a gerrit-based patch review process explained at https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit