wgwoods

CC=clang
CFLAGS=-Os

WASI_VERSION=12
WASI_VERSION_FULL=$(WASI_VERSION).0

ifeq ($(OS),Windows_NT)
    HOST_OS=mingw
else
    UNAME_S := $(shell uname -s)

wgwoods

#!/usr/bin/python3

from pathlib import Path

# Define an action that you can send into the generator
SKIPDIR = 1

# Path walkin' generator coroutine
def walk(topdir='.'):
    for p in Path(topdir).iterdir():

wgwoods

Keybase proof

I hereby claim:

• I am wgwoods on github.
• I am willrad (https://keybase.io/willrad) on keybase.
• I have a public key ASAHoKxQuiCHAHN_56XxWyT_6XqBP6mXWffAqVdr4N_EeAo

To claim this, I am signing this object:

wgwoods

#!/bin/bash

# Make a little tmpdir (and delete it when we're done)
tmpdir=$(mktemp -d) && [ -d $tmpdir ] && trap "rm -rf $tmpdir" EXIT
tree1=$tmpdir/tree1
tree2=$tmpdir/tree2

# Make an example tree
mkdir -p $tree1/etc/pki/rpm-gpg
mkdir -p $tree1/etc/pki/ca-trust

wgwoods

notes on reverse-engineering the iGK6X USB protocol

Basic info:

• Packets are 0x40 (64) bytes long
  • Byte 0-1: Command & Subcommand
  • Byte 2-3: Offset (or Result for packets from keyboard)
  • Byte 4: padding? (always 00)
  • Byte 5: Size of payload (max 0x38)
• Byte 6-7: checksum

wgwoods

; vim: syn=asm:
;
; Hello and welcome to my hand-annotated disassembly of my GK64's firmware!!
;
; Please forgive the formatting and such, this is really just a bunch of my
; own notes that I wrote up while trying to RE this thing. I'm not an expert
; or an authority, I'm just trying to figure out how this thing works.
;
; If you have any questions, or better datasheets, or more info about the
; keyboard hardware itself (especially if you've got probes small enough

wgwoods

/home/wwoods/Documents/Wireshark/iGK64/7A29.bin:     file format binary


Disassembly of section .data:

00000000 <.data>:
       0:	48 00 50 20 	j 0xa040
       4:	48 00 00 30 	j 0x64
       8:	48 00 00 2e 	j 0x64

wgwoods

#!/usr/bin/python3
# gk64.py - exploration stuff using pyusb to talk to a GK6x keyboard
#
# Copyright (c) 2019 Will Woods <w@wizard.zone>
#
# You shouldn't be using this, because it's horrible, but if you are,
# consider it licensed as GPLv2+. Also, I'm sorry.
#
# If you just wanna send random commands and see what happens, try:
#   sudo python3 gk64.py [cmd] [subcmd]