75487aed90
The ``EF_ACC`` field defines the access control class (ACC) for a subscriber. Without this patch, the implementation adds padding 1 towards the most significant bits if the input is shorter than 2 bytes. However, it should be padded with 0, otherwise additional ACCs are allocated to the subscriber. (Probably only a single bit shall be set to 1) Excerpt from [ETSI TS 131 102, 4.2.15](https://www.etsi.org/deliver/etsi_ts/131100_131199/131102/04.15.00_60/ts_131102v041500p.pdf): ``` EF_ACC: Two bytes: B1, B2 B1.b8...B1.b4: high priority users (class 15...11) B1.b3: always 0 B1.b2...B1.b2 and B2.b7...B2.b0: normal priority users (class 9...0) - to be evenly distributed across subscribers ``` **Legend:** Byte X, bit Y: BX.bY Change-Id: I1b8dc01a6c48adad1ed8158de59b12519ed688e9
pySim-prog - Utility for programmable SIM/USIM-Cards
This repository contains a Python-language program that can be used to program (write) certain fields/parameters on so-called programmable SIM/USIM cards.
Such SIM/USIM 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 issue your own SIM/USIM cards for that network.
Homepage
The official homepage of the project is http://osmocom.org/projects/pysim/wiki
GIT Repository
You can clone from the official libosmocore.git repository using
git clone git://git.osmocom.org/pysim.git
There is a cgit interface at http://git.osmocom.org/pysim/
Dependencies
pysim requires:
- pyscard
- serial
- pytlv (for specific card types)
- cmd2 (for pySim-shell.py)
Example for Debian:
apt-get install python3-pyscard python3-serial python3-cmd2 python3-pip python3-yaml
pip3 install pytlv
Alternatively, everything can be installed using pip:
pip3 install -r requirements.txt
Mailing List
There is no separate mailing list for this project. However, discussions related to pysim-prog are happening on the openbsc@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/openbsc for subscription options and the list archive.
Please observe the Osmocom Mailing List Rules when posting.
Contributing
Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards
We are currently accepting patches by e-mail to the above-mentioned mailing list.
Usage
- Program customizable SIMs. Two modes are possible:
- one where you specify every parameter manually :
./pySim-prog.py -n 26C3 -c 49 -x 262 -y 42 -i -s
- one where they are generated from some minimal set :
./pySim-prog.py -n 26C3 -c 49 -x 262 -y 42 -z <random_string_of_choice> -j <card_num>
With <random_string_of_choice> and <card_num>, the soft will generate
'predictable' IMSI and ICCID, so make sure you choose them so as not to
conflict with anyone. (for eg. your name as <random_string_of_choice> and
0 1 2 ... for <card num>).
You also need to enter some parameters to select the device : -t TYPE : type of card (supersim, magicsim, fakemagicsim or try 'auto') -d DEV : Serial port device (default /dev/ttyUSB0) -b BAUD : Baudrate (default 9600)
- Interact with SIMs from a python interactive shell (ipython for eg :)
from pySim.transport.serial import SerialSimLink from pySim.commands import SimCardCommands
sl = SerialSimLink(device='/dev/ttyUSB0', baudrate=9600) sc = SimCardCommands(sl)
sl.wait_for_card()
# Print IMSI
print(sc.read_binary(['3f00', '7f20', '6f07']))
# Run A3/A8
print(sc.run_gsm('00112233445566778899aabbccddeeff'))