Shellchat Commands - betrusted-io/betrusted-wiki GitHub Wiki

This is a list of shellchat commands that are available in the stable v0.9.9 Xous release.

Legend:

  • :warning: use command with caution (like rm -r)
  • :x: don't use the command (for internal testing only)
  • :skull: does irreversible and bad things (like self destruct)

accel

:warning: Subcommand + args Notes
(no options) returns x/y/z + ID

backlight

This command will be deprecated soon.

:warning: Subcommand + args Notes
on backlight set to 100%
off backlight set to 0%
0 backlight set to 0%
1 backlight set to 12.5%
2 backlight set to 37.6%
3 backlight set to 50%
4 backlight set to 76.5%
5 backlight set to 100%

console

:warning: Subcommand + args Notes
kernel direct kernel output to serial port
log direct logging output to serial port
app direct app output to serial port

echo

:warning: Subcommand + args Notes
(anything) repeats (anything), up to 1024 UTF-8 bytes

ecup

This command will be deprecated soon, as EC updates are automatic now.

:warning: Subcommand + args Notes
:x: fw Update the firmware segment of the EC (do not use!)
:x: gw Update the gateware segment of the EC (do not use!)
:x: wf200 Update the wf200 segment of the EC (do not use!)
auto Auto-update the EC

jtag

:warning: Subcommand + args Notes
id prints the JTAG ID code of the FPGA
dna prints the DNA of the FPGA
efuse prints the efuse (backup key) of the FPGA, if it is readable
ir arg sends arg to the JTAG ir. arg should be a binary number (e.g. 101101)
:warning: burn0 burns the "0" key to eFuse. Can lead to bricking your device.

keys

:warning: Subcommand + args Notes
:warning: bbram kicks off the BBRAM provisioning. To be run only from the helper script on a connected Rpi, do not run manually.
aes Test routine. Requests the data [0u8; 16] to be encrypted and decrypted by the rootkeys server.
:skull: ppdbrecycle Permanently erases the PDDB by deleting the page table. There is no way to recover from this.

net

:warning: Subcommand + args Notes
tcpget short url Gets data at a URL of the form bunniefoo.com/bunnie/test.txt (no http:// prefix)
server Starts a server on port 80 that responds with the uptime
fountain Starts a "fountain" that spews numbers to any host connecting on port 3333
udp socket [dest] For UDP testing. Starts a listener on socket. dest is optional. For example, run net udp 0.0.0.0:6502 and then use netcat -u <precursor ip address> 6502 to send data via UDP to Precursor
dns host Attempt to resolve the IP address of host
ping host count Sends count pings to host. Default to 1 if no count is specified

pddb

:warning: Subcommand + args Notes
basislist Lists open Bases
default Reports the current default Basis
basiscreate Triggers UX flow to create a new secret Basis. Does not mount the Basis.
basisunlock Mounts a secret Basis
basislock Unmounts a secret Basis
:warning: basisdelete Deletes a secret basis. Treat it like rm -r /*.
:warning: dictdelete Deletes a dictionary. Treat it like rm -r /*.
query dictionary:key Prints the contents of dictionary:key
:warning: keydelete dictionary:key Deletes dictionary:key. Like rm
keylist dictionary Lists the first 10 keys in dictionary
dictlist Lists the first 10 dictionaries known to the system
:warning: churn Churns the PDDB. This operation takes about 20-30 minutes. Will erase any un-enumerated secret Bases. Used to restore full deniability after a forensic imaging event.
flush Flushes the SpaceUpdate log, restoring deniability
sync Syncs any RAM buffers to disk. Useful if you're about to unceremoniously reset or power down the device

rtc

Slated to be deprecated

:warning: Subcommand + args Notes
utc Prints the UTC time. Time must be set for this to work.
local Prints the local time, if timezone is set.

sensors

:warning: Subcommand + args Notes
(no args) Prints the output of various system sensors.

sleep

Lexicon:

  • suspend: SoC is off, EC is on, wifi is on, screen on. ~1-2 days battery life. Could "wake from LAN" in this state, if that code existed.
  • ship: Battery is disconnected. Can store for "years". Requires external power to turn on again.

Several of these commands are slated for deprecation.

:warning: Subcommand + args Notes
:x: crypton Disables power management on the crypto functions. Don't run it.
:x: cryptoff Forces crypto functions off. Don't run it.
sus Puts the device into "suspend" mode. Only works if the device is not plugged in.
:x: stress Forces device into a stress-test loop for sleep/suspend. Don't run it.
now Identical to sus but using a different code path
current Reports the current consumption most recently measured while suspended
ship Disconnects internal battery for shipping and storage. Requires external power to reboot.
coldboot Attempts to perform a cold boot, e.g. reload the SoC without the paperclip
:skull: kill Self-destruct the device. Once this is run, you cannot use the device until the battery fully runs down and it turns off. The paperclip method won't recover the device. You have to unplug the battery to recover it. Destroys any BBRAM key if set.
:skull: killbounce Similar to kill but before doing it, calls ship. This causes the battery to disconnect after the kill, so you can "bounce" the device by just plugging power in after about 10 seconds
wfioff Disables clock gating and forces the CPU clock to run 100% of the time. May slightly improve performance/latency at the expense of much greater power draw.
wfion Re-enables clock gating
debugwfi Re-routes some WFI signals to the debug header inside the device so you can see the WFI patterns with an osciloscope

ssid

:warning: Subcommand + args Notes
force Forces the WF200 to do another SSID scan cycle
scan Reports the currently visible list of SSIDs

test

:x: Don't. None of these command are meant for you. They are run in the factory to make sure your device works and they can get the device into some hairy states.

trng

:warning: Subcommand + args Notes
avnist Reports the NIST test status for the avalanche generator
ronist Reports the NIST test status for the ring oscillator generator
runs Reports latest consecutive bit runs stats on the ring oscillator
excur Reports the noise excursion of the avalanche generator. This is an indirect measure of its health.
pump Pulls 16 x 1024 u32 values out of the generator and throws them away. Reports sample values at 0, 512, and 1023.
errs Reports TRNG error stats. It is normal to see some errors in the RO sub-generators (that's why we use four of them)

usb

:warning: Subcommand + args Notes
console Tunnel a serial console to your device inside shellchat
debug Switches to the debug core (for updates)
hid Switches to the HID core (for keyboard emulation, and FIDO)
kbdtest Used to check the keyboard mapping. This is useful for users with e.g. dvorak or custom keymaps on their machine. Use with tools/kbdtest.py to generate map files
leds Reports the current status of the keyboard "LEDs"
lock Fully restricts debug access on the debug USB core
send text "Types" text to a host as if Precursor were a USB device. Must be in HID mode first.
status Reports the USB core status
unlock Restores access to the debug core. Regardless what the command reports, there is also a hardware ACL that now restricts access to sensitive secrets, so the debug core is much more "safe" to leave on now

ver

:warning: Subcommand + args Notes
ec Embedded controller gateware and firmware version
wf200 WF200 reported firmware version.
soc SoC gateware version
dna FPGA silicon DNA
xous Xous version
ecreset Force the EC into a reset, which reloads its gateware and firmware

vibe

:warning: Subcommand + args Notes
on Short motor buzz with every key stroke
off Tactile feedback turned off
long A single long pulse of the motor
double A double-pulse of the motor

wlan

Most of these commands are slated to be incorporated into a more user-friedly UX flow soon, after which they will be deprecated.

:warning: Subcommand + args Notes
on Sets the WF200 to on, connection manager to RUN
off Stops the connection manager, forces the WF200 hardware reset pin to active
setssid ssid Sets your SSID. Press-hold keys to make symbols show up.
setpass pass Set a WPA2 password. Press-hold keys to make symbols show up.
save Write the SSID/pass combo to the PDDB, so the connection manager can automatically search for it
known List of saved SSIDs
join Try to join the currently set ssid/pass combo
leave Leave the current network, stops the connection manager so it doesn't try to re-join
status Current network status
debug Triggers debugging routines on the COM port