Awesome
This is a simplified version of the Nexmon Framework by Daniel Wegemer and Matthias Schulz (https://github.com/seemoo-lab/nexmon)
I presented in 2018 at DEFCON how to use the Nexmon framework to modify Xiaomi firmwares, which are based on Marvel or Mediatek Cortex-M chips. You find the presentation here: http://dontvacuum.me/talks/DEFCON26-IoT-Village/DEFCON26-IoT-Village_How_to_Modify_Cortex_M_Firmware-Xiaomi.html
This release does not contain the buildtools, please download them from the nexmon repository.
Steps:
- import folder buildtools from (https://github.com/seemoo-lab/nexmon/tree/master/buildtools)
source setup.env.sh
- Maybe:
cd buildutils/
andmake
- Edit:
patches/common/wrapper.c
to add more firmware functions (see blinkenlights) - Edit:
patches/mw300/1/demo/src/patch.c
to add new code to your firmware - Edit:
firmwares/mw300/1/definitions.mk
to define where new patches have to go