Go Bluetooth Keyboard
BT Keyboard Emulator
Research:
Interesting repos:
https://github.com/quangthanh010290/keyboard_mouse_emulate_on_raspberry
https://github.com/benizi/hidclient
http://mulliner.org/bluetooth/xkbdbthid.php
https://github.com/007durgesh219/BTGamepad
explanation about bluez and hidclient: https://askubuntu.com/questions/229287/how-do-i-make-ubuntu-appear-as-a-bluetooth-keyboard
https://github.com/muka/go-bluetooth
emulate a keyboard with go https://github.com/potch8228/gobt
backboardd logs events
https://github.com/paypal/gatt
Observations:
the on screen keyboard disappears (might be nice for crawls) you can toggle the onscreenkeyboard volume controls, taking screenshots, brightness controsl work, locking screen and unlocking including typing a pin work, cmd+h == homescreen
How SDP (Bluetooth Service Discovery Protocol) Records work
Here is some documentation on how to set up this record https://www.bluetooth.com/specifications/assigned-numbers/service-discovery/ http://read.pudn.com/downloads25/doc/comm/82404/hid_mouse/hid_mouse.sdp__.htm https://notes.iopush.net/custom-usb-hid-device-descriptor-media-keyboard/ taken from: https://github.com/lvht/btk/blob/master/sdp_record.xml