BLE support in emulator

[mmilata]

🐧🐧🐧 Linux-only 🐧🐧🐧

Consists of:

• exposing core BLE interface to the outside as two UDP sockets, no connection state handling
• trezorlib transport that talks to these sockets - as there is no connection state handling it might be useful for writing tests for e.g. misbehaving nRF but not much else
• python script that launches dbus-daemon and a mock Linux BLE API on it - using env variable you can convince Suite/trezorlib to talk to it instead of the actual BLE devices

Usage:

• start emu.py
• start core/tools/bluez-emu-bridge.py -v
• override dbus socket path export DBUS_SYSTEM_BUS_ADDRESS=unix:path=/tmp/dbus-bluez-emu-bridge
• run Suite in the same environment ⬆️
• same environment variable also works for trezorctl -B -p ble: ... commands

TBD in following PR(s):

• launch DBus api from emu.py
• configurable DBus listen address
  • needed for multicore tests
  • might be easier for trezor-user-env to expose a port than unix socket
• t-u-e integration
• add device test for e.g. pairing flow

[github-actions]

en main(all)

model	device_test	click_test	persistence_test
T2T1	test(all) main(all)	test(all) main(all)	test(all) main(all)
T3B1	test(all) main(all)	test(all) main(all)	test(all) main(all)
T3T1	test(all) main(all)	test(all) main(all)	test(all) main(all)
T3W1	test(all) main(all)	test(all) main(all)	test(all) main(all)

Translations

cs main(all)

model	device_test	click_test
T2T1	test(all) main(all)	test(all) main(all)
T3B1	test(all) main(all)	test(all) main(all)
T3T1	test(all) main(all)	test(all) main(all)
T3W1	test(all) main(all)	test(all) main(all)

de main(all)

model	device_test	click_test
T2T1	test(all) main(all)	test(all) main(all)
T3B1	test(all) main(all)	test(all) main(all)
T3T1	test(all) main(all)	test(all) main(all)
T3W1	test(all) main(all)	test(all) main(all)

es main(all)

model	device_test	click_test
T2T1	test(all) main(all)	test(all) main(all)
T3B1	test(all) main(all)	test(all) main(all)
T3T1	test(all) main(all)	test(all) main(all)
T3W1	test(all) main(all)	test(all) main(all)

fr main(all)

model	device_test	click_test
T2T1	test(all) main(all)	test(all) main(all)
T3B1	test(all) main(all)	test(all) main(all)
T3T1	test(all) main(all)	test(all) main(all)
T3W1	test(all) main(all)	test(all) main(all)

pt main(all)

model	device_test	click_test
T2T1	test(all) main(all)	test(all) main(all)
T3B1	test(all) main(all)	test(all) main(all)
T3T1	test(all) main(all)	test(all) main(all)
T3W1	test(all) main(all)	test(all) main(all)

Latest CI run: 18919133241

[socket-security]

No dependency changes detected. Learn more about Socket for GitHub.

👍 No dependency changes detected in pull request

[mmilata]

Thanks for the feedback @romanz, I've pushed some fixes. Did you manage to get this to work (with trezorctl or suite) on your machine?

[romanz]

LGTM, thanks!

Tested successfully with trezorctl & Trezor-Suite-25.10.2-linux-x86_64.AppImage (on Ubuntu 24.04.3)

[romanz]

nit:

Suggested change

	if (i + 1 != drv->bonds_len) {
	if (i != last) {

[mmilata]

oof 999cda5

[romanz]

Device menu is now showing that BLE is enabled :)
https://data.trezor.io/dev/firmware/ui_report/18912365839/failed/T3W1_en-click_tests-device_menu-test_wipe_device.py%3A%3Atest_wipe.html