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gerrit.osmocom.org / simtrace2 / ff434e4f121423181c8aa33717d62f29cfc46aef
commitff434e4f121423181c8aa33717d62f29cfc46aef[log] [tgz]
authorJames Tavares <jtavares@kvh.com>Mon Jan 10 21:12:54 2022 -0500
committerjtavares <jtavares@kvh.com>Fri Mar 11 18:36:06 2022 +0000
treec165debf13e3ec7ee1d6360be0c8617c38620eaa
parent2ceba0fdc431258705473eec44a090b3d159faa7 [diff]
firmware: bugfix: disable cardemu comms in local SIM mode

This change prevents contention on the ISO7816 bus by disabling the card emulation state machine when the SIM switch is in the local mode. Without this change, the card emulation firmware can clobber ISO7816 communications and cause contention with certain (but not all) SIM cards.

Changes:
- Add 'enabled' flag to cardemu instance that is set/cleared by usb_command_sim_select() (the only place where sim switch occurs).
- Flag is initialized as false (disabled) by default, to match local SIM mode default.
- When card emulation is disabled, force SIM VCC to be "OFF",  SIM RESET as "not in RESET", and drop bytes bytes received on the ISO7816 interface (but do service buffers).

Change-Id: I4010f988712eac4a6af8568ccd60062f9de62449
1 file changed
tree: c165debf13e3ec7ee1d6360be0c8617c38620eaa
  1. contrib/
  2. debian/
  3. firmware/
  4. hardware/
  5. host/
  6. .clang-format
  7. .gitignore
  8. .gitmodules
  9. .gitreview
  10. clk_calc.py
  11. git-version-gen
  12. Makefile
  13. README.md
  14. TODO-RELEASE
README.md

SIMtrace v2.0

This is the repository for the next-generation SIMtrace devices, providing abilities to trace the communication between (U)SIM card and phone, remote (U)SIM card forward, (U)SIM man-in-the-middle, and more.

NOTE: Nothing in this repository applies to the SIMtrace v1.x hardware or its associated firmware. SIMtrace v1.x is based on a different CPU / microcontroller architecture and uses a completely different software stack and host software.

Supported Hardware

  • Osmocom SIMtrace 1.x with SAM3 controller ** this is open hardware and schematics / PCB design is published
  • sysmocom sysmoQMOD (with 4 Modems, 4 SIM slots and 2 SAM3) ** this is a proprietary device, publicly available from sysmocom
  • sysmocom OWHW (with 2 Modems and 1 SAM3 onboard) ** this is not publicly available hardware, but still supported

This Repository

This repository contains several directory

  • firmware - the firmware to run on the actual devices
  • hardware - some information related to the hardware
  • host - Programs to use on the USB host to interface with the hardware

The host software includes

  • libosmo-simtrace2 - a shared library to talk to devices running the simtrace2 firmware
  • simtrace2-list - list any USB-attached devices running simtrace2 firmware
  • simtrace2-sniff - interface the 'trace' firmware to obtain card protocol traces
  • simtrace2-cardem-pcsc - interface the 'cardem' fimrware to use a SIM in a PC/SC reader