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#!/bin/ash
disable_tty_switch() {
cat > /etc/X11/xorg.conf.d/50-no-tty.conf <<EOF
Section "ServerFlags"
Option "DontVTSwitch" "true"
EndSection
EOF
}
disable_openbox_menu() {
[ ! -e "/etc/xdg/openbox/rc.xml.safe" ] && \
echo "No rc.xml.safe template found." && return 1
cp "/etc/xdg/openbox/rc.xml" "/root/rc.xml.unsafe"
cp "/etc/xdg/openbox/rc.xml.safe" "/etc/xdg/openbox/rc.xml"
}
disable_magic_keys() {
echo 0 > /proc/sys/kernel/sysrq
}
change_loginscreen() {
mkdir -p "/etc/lightdm/qt-lightdm-greeter.conf.d"
cat > "/etc/lightdm/qt-lightdm-greeter.conf.d/99-exam-mode.conf" <<EOF
[General]
greeter-background-gradient = FFB22C FFB22C
greeter-background-image =
EOF
/opt/openslx/scripts/lightdm-patch_logo "Prüfungsmodus" '#888687'
}
systemd_config() {
# Disable ctrl-alt-delete
systemctl mask --no-block ctrl-alt-del.target
# No idleaction
rm -- "/etc/cron.d/openslx-idleaction"
# Ignore everything but power button, no VTs
mkdir -p "/etc/systemd/logind.conf.d"
cat > "/etc/systemd/logind.conf.d/99-exam.conf" <<EOF
[Login]
NAutoVTs=0
ReserveVT=0
KillUserProcesses=no
HandlePowerKey=poweroff
HandleSuspendKey=ignore
HandleHibernateKey=ignore
HandleLidSwitch=ignore
IdleAction=ignore
EOF
# reload
timeout 2 systemctl daemon-reload
timeout 3 systemctl try-restart systemd-logind
systemctl --no-block stop getty@tty1 # Since this is hard-linked
}
ssh_banner() {
# Visual: ssh banner
echo "+ - - - PRÜFUNGSMODUS AKTIV - - - +" >> "/etc/issue.net"
echo "++++++++++++++++++++++++++++++++++++++" >> "/etc/issue.net"
}
disable_tty_switch
disable_openbox_menu
disable_magic_keys
change_loginscreen
systemd_config
ssh_banner
exit 0
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