A GPR400 / GemPC400 Linux driver

Introduction

I made this driver to allow me access to lot's of diffrent types of IC cards that I can't read with the original driver written by Jaiger. This driver is an improvement of the original driver and permits me to read synchronous cards for which an "ASIC" driver exists, and of course allow access to microprocessor smartcards, that the original driver provided before.

Download

• The GPR400 linux driver: gpr400.tar.gz
• The GPR400 ICC Driver file archive: iccdrv.ZIP. (Got from the Gemplus' support).
• Sample source code for reading and loading data from a GPM 256 card: gpr400_test.c

How does it work ?

First, you need to load the binary file containing the driver for your specific card. Those files are stored in the Icc drivers archive. The following table shows which file is needed for which card. The load sequence is provided by the GPR400_IOCTL_LOAD_MEMORY call provided by the ioctl driver mecanism. (example: gpr400_test.c).

Next, after the SELECT and ACTIVATE ioctl calls, you'll be able to OPEN a SESSION and EXCHANGE APDU commands with your card.

Tests report

Some cards have been reported to work with this driver and not with the Jaiger's one. Some cards might work with Jaiger's and not with mine too. Actually, tests have been performed with this asynchronous cards too:

Technical informations

Due to a lack of good documentation provided by Gemplus, this driver is a complete reverse engeneering hack. The pdf documentations used to make this possible are:

• The GPR400 Reference Manual (Ref: 248_E5234010.pdf)
• The Windows API description (Ref: 267_E5234016.pdf)
• The WinGPR software documentation (Ref: 299_E5234018.pdf)

One must read and re-read those documents to extract the little information to be found. And sometime what you find just doesn't work.

The GPR400 reader is built around two specific components. Of course I don't have the datasheet for them, and asking google doesn't provide me nothing really interesting. So, I will glad if someone can give me them:

• TEMIC Micro-1FEM-5 / CSIC V1.1 / 9814 .Z23522E
• MHS / GPR400 V1.1 / IVC52CLC - 16 / INTEL 8082 / 9609 .Z04142B

This section try to explain how are exactly mapped the datas in the PCMCIA attribute space memory. This information may be inexact, so if anyone can confirm it would be helpful; Gemplus flatly refused.

You can have a look at the RAM dump output here.

Contact

Pierrick Hascoet