armbian-build/extensions/armbian-live-patch.sh

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function post_family_tweaks_bsp__armbian-live-patch() {
display_alert "Extension: ${EXTENSION}: Installing Armbian Live Patch" "${EXTENSION}" "info"
run_host_command_logged cat <<- 'armbian-live-patch' > "${destination}"/etc/systemd/system/armbian-live-patch.service
# Armbian simple patch system service
# Sometimes we need to fix minor issues like changing the key or fixing other small problem on live OS.
# This downloads patch script from CDN, verify its signature and executes it at various stages
#
# Currently execute by: booting the system up, at apt upgrade stage, right before installing packages
#
# GH Action script for automatic signing and upload:
# https://github.com/armbian/os/tree/main/live-patch
[Unit]
Description=Armbian simple patch
Wants=time-sync.target
Before=time-sync.target
After=network.target
[Service]
Type=forking
ExecStart=/usr/lib/armbian/armbian-live-patch startup
ExecStop=/usr/lib/armbian/armbian-live-patch stop
RemainAfterExit=no
TimeoutStartSec=2m
[Install]
WantedBy=multi-user.target
armbian-live-patch
run_host_command_logged cat <<- 'armbian-live-patching' > "${destination}"/usr/lib/armbian/armbian-live-patch
#!/bin/bash
#
SERVER_PATH="https://dl.armbian.com/_patch"
# exit if dependencies are not met
if ! command -v "wget" &> /dev/null; then
echo "Warning: patch system is not working as dependencies are not met (wget)"| logger -t "armbian-live-patch"
exit 0
fi
if ! command -v gpg &> /dev/null; then
echo "Warning: patch system is not working as dependencies are not met (gpg)"| logger -t "armbian-live-patch"
exit 0
fi
case $1 in
apt)
PATCH="${SERVER_PATH}/01-pre-apt-upgrade.sh"
PATCH_SIG="${SERVER_PATH}/01-pre-apt-upgrade.sh.asc"
;;
startup)
PATCH="${SERVER_PATH}/02-startup.sh"
PATCH_SIG="${SERVER_PATH}/02-startup.sh.asc"
;;
stop)
exit 0
;;
*)
echo "Warning: patch was not selected (apt|startup)"| logger -t "armbian-live-patch"
exit 0
;;
esac
echo "Armbian live patch $1"
TMP_DIR=$(mktemp -d -t test-XXXX)
sleep 10
timeout 10 wget -q --retry-connrefused --waitretry=3 --read-timeout=20 --timeout=15 -t 3 ${PATCH} -P ${TMP_DIR}
timeout 10 wget -q --retry-connrefused --waitretry=3 --read-timeout=20 --timeout=15 -t 3 ${PATCH_SIG} -P ${TMP_DIR}
# Check if installed key is ours
export GNUPGHOME="${TMP_DIR}"
gpg --keyring /usr/share/keyrings/armbian.gpg --list-keys 2>/dev/null | grep -q DF00FAF1C577104B50BF1D0093D6889F9F0E78D5
if [[ $? != 0 ]]; then
echo "Warning: signing key invalid or expired"| logger -t "armbian-live-patch"
fi
# Check if file is signed with Armbian key
gpg --keyring /usr/share/keyrings/armbian.gpg --verify ${TMP_DIR}/${PATCH_SIG##*/} ${TMP_DIR}/${PATCH##*/} > ${TMP_DIR}/live-patch.log 2>/dev/null
if [[ $? == 0 ]]; then
echo "Patch file is signed with Armbian GPG key"
echo "Running Armbian Live Patch"
bash ${TMP_DIR}/${PATCH##*/} | logger -t "armbian-live-patch"
rm -rf ${TMP_DIR}
else
echo "Warning: we could not download patch files. Run manually: sudo bash $0 $1"| logger -t "armbian-live-patch"
fi
exit 0
armbian-live-patching
run_host_command_logged chmod -v 755 "${destination}"/usr/lib/armbian/armbian-live-patch
}