Wi-Fi Driver Real-time Hack

Target for Linux Kernel v5.15 LTS.

An alternative to iw which uses nl80211 interface.

Use procfs + mmap to access ieee80211_ops within extremely low latency from userspace.

Build

• build the kernel module

  We use a custom iwlmvm build in this repo. You can disable it with cmake -DBUILD_IWLMVM=OFF .. or activate DVM with -DBUILD_IWLMVM=OFF -DBUILD_IWLDVM=TRUE

  mkdir build
  cd build && cmake ..
  make

• build and install the python controller package

  It is recommended to install the package globally which could be found by root user.

  cd wlsctrl
  python3 setup.py bdist_wheel
  sudo pip3 install ./dist/*.whl

How to Use

Make sure that you have at least one wireless NIC enabled.

1. Run sudo insmod build/wlsops/wlsops_hack.ko to install the built kernel modules, where wlsops_hack will use the first wireless NIC found in the system;

2. Run the test in wlsctrl/tests with root permission.