debian-config

#!/bin/bash
#
# Copyright (c) 2017 Igor Pecovnik, igor.pecovnik@gma**.com
#
# This file is licensed under the terms of the GNU General Public
# License version 2. This program is licensed "as is" without any
# warranty of any kind, whether express or implied.


# check for root
#
if [[ $EUID != 0 ]]; then
	echo "Warning. This script requires root privileges. Exiting ..."
	sleep 2
	exit
fi


# check if we have internet connection to install dependencies
#
echo -e "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1
if [[ $? -ne 0 ]]; then
		read -n 1 -s -p "Warning. Configurator can't work properly without internet connection. \
		Press CTRL C to stop to stop or any key to ignore and continue."
	else
		[[ $(dpkg-query -W -f='${db:Status-Abbrev}\n' bc 2>/dev/null) != *ii* ]] && \
		apt-get -qq -y --no-install-recommends install bc
		[[ $(dpkg-query -W -f='${db:Status-Abbrev}\n' expect 2>/dev/null) != *ii* ]] && \
		apt-get -qq -y --no-install-recommends install expect
		[[ $(dpkg-query -W -f='${db:Status-Abbrev}\n' rcconf 2>/dev/null) != *ii* ]] && \
		apt-get -qq -y --no-install-recommends install rcconf
		[[ $(dpkg-query -W -f='${db:Status-Abbrev}\n' dialog 2>/dev/null) != *ii* ]] && \
		apt-get -qq -y --no-install-recommends install dialog
		[[ $(dpkg-query -W -f='${db:Status-Abbrev}\n' network-manager 2>/dev/null) != *ii* ]] && \
		apt-get -qq -y --no-install-recommends install network-manager
		[[ $(dpkg-query -W -f='${db:Status-Abbrev}\n' sunxi-tools 2>/dev/null) != *ii* ]] && \
		apt-get -qq -y --no-install-recommends install sunxi-tools
fi

# gather info about the board
#
[[ -f /etc/armbian-release ]] && source /etc/armbian-release && ARMBIAN="Armbian $VERSION $IMAGE_TYPE";
DISTRO=$(lsb_release -is)
DISTROID=$(lsb_release -rs)
BACKTITLE="$ARMBIAN $DISTRO $DISTROID configuration utility, http://www.armbian.com"
TITLE="Configuring $BOARD_NAME"


#-----------------------------------------------------------------------------------------------------------------------------------------#
#
# show disclaimer
#
function beta_disclaimer ()
{
exec 3>&1
ACKNOWLEDGEMENT=$(dialog --nocancel --backtitle "$BACKTITLE" --no-collapse --title "Warning" --clear \--radiolist "\n$1.\n \n" 12 56 7 "Yes, I understand" "" off	 2>&1 1>&3)
exec 3>&-
}

#-----------------------------------------------------------------------------------------------------------------------------------------#
#
# show description for MOTD files
#
function description
{
	case $1 in
		*header*)
			echo "Big board logo and kernel info"
		;;
		*sysinfo*)
			echo "Sysinfo - load, ip, memory, uptime, ..."
		;;
		*tips*)
			echo "Shows tip of the day"
		;;
		*updates*)
			echo "Display number of avaliable updates"
		;;
		*armbian-config*)
			echo "Show command for system configuration"
		;;
		*autoreboot-warn*)
			echo "Show warning when reboot is needed"
		;;
		*)
		echo ""
		;;
	esac
}


# edit hostapd parameters
#
function wlan_edit ()
{
	source /etc/hostapd.conf
	exec 3>&1
	dialog --title "AP configuration" --backtitle "$BACKTITLE" --form "\nWPA2 enabled, \
	advanced config: edit /etc/hostapd.conf\n " 12 58 0 \
	"SSID:"				1 1 "$ssid"				1 31 22 0 \
	"Password:"			2 1 "$wpa_passphrase"	2 31 22 0 \
	"Channel:"			3 1 "$channel"			3 31 3 0 \
	2>&1 1>&3 | {
		read -r ssid;read -r wpa_passphrase;read -r channel
		if [[ $? = 0 ]]; then
				sed -i "s/^ssid=.*/ssid=$ssid/" /etc/hostapd.conf
				sed -i "s/^wpa_passphrase=.*/wpa_passphrase=$wpa_passphrase/" /etc/hostapd.conf
				sed -i "s/^channel=.*/channel=$channel/" /etc/hostapd.conf
				wpa_psk=$(wpa_passphrase $ssid $wpa_passphrase | grep '^[[:blank:]]*[^[:blank:]#;]' | grep psk | cut -d= -f2-)
				sed -i "s/^wpa_psk=.*/wpa_psk=$wpa_psk/" /etc/hostapd.conf
		fi
		}
}


# naming exceptions for packages
#
function exceptions ()
{
	TARGET_FAMILY=$LINUXFAMILY
	UBOOT_BRANCH=$TARGET_BRANCH # uboot naming is different
	case $BOARD in
		cubietruck | cubieboard2 | bananapipro | lamobo-r1 | orangepi | orangepimini | lime* | micro | pcduino3 | pcduino3nano)
		if [[ $TARGET_BRANCH == "default" ]]; \
		then TARGET_FAMILY="sun7i"; TARGET_BRANCH=""; else TARGET_FAMILY="sunxi"; TARGET_BRANCH="-"$TARGET_BRANCH; fi
		;;
		cubieboard | lime-a10 | pcduino2)
		if [[ $TARGET_BRANCH == "default" ]]; \
		then TARGET_FAMILY="sun4i"; TARGET_BRANCH=""; else TARGET_FAMILY="sunxi"; TARGET_BRANCH="-"$TARGET_BRANCH; fi
		;;
		*)
		if [[ $TARGET_BRANCH == "default" ]]; \
		then TARGET_BRANCH=""; else TARGET_BRANCH="-"$TARGET_BRANCH; fi
	esac
}


# here we add wifi exceptions
#
function wlan_exceptions ()
{
	[[ -n "$(lsmod | grep -w dhd)" && $1 = "on" ]] && \
	echo 'options dhd op_mode=2' >/etc/modprobe.d/ap6212.conf && rmmod dhd && modprobe dhd
	[[ -n "$(lsmod | grep -w dhd)" && $1 = "off" ]] && \
	rm /etc/modprobe.d/ap6212.conf && rmmod dhd && modprobe dhd
}


# check if board has alternative kernels
#
function aval_kernel ()
{
	IFS=$'\r\n'
	GLOBIGNORE='*'
	AVAL_KERNEL=($(apt-cache search --names-only '^linux-'$(lsb_release	 -cs)'-root.*.'$BOARD'*' \
	| grep -w "$BOARD " | sed 's/.*(\(.*\))/\1/' | awk '{print $1}' | grep -v "$BRANCH" ))
	local LIST=()
	for i in "${AVAL_KERNEL[@]}"
	do
			LIST+=( "${i[0]//[[:blank:]]/}" "" )
	done
	LIST_LENGHT=$((${#LIST[@]}/2));
	if [ "$LIST_LENGHT" -eq 1 ]; then
			TARGET_BRANCH=${AVAL_KERNEL[0]}
	else
			exec 3>&1
			TARGET_BRANCH=$(dialog --nocancel --backtitle "$BACKTITLE" --no-collapse \
			--title "Upgrade from $BRANCH to:" --clear --menu "" $((6+${LIST_LENGHT})) 40 15 "${LIST[@]}" 2>&1 1>&3)
			exec 3>&-
	fi
}


# search for wlan interfaces and provide a selection menu if there are more than one
#
function get_wlan_interface ()
{
	IFS=$'\r\n'
	GLOBIGNORE='*'
	WLAN_INTERFACES=($(nmcli dev status | grep wifi |awk '{print $1}'))
	local LIST=()
	for i in "${WLAN_INTERFACES[@]}"
	do
			LIST+=( "${i[0]//[[:blank:]]/}" "" )
	done
	LIST_LENGHT=$((${#LIST[@]}/2));
	if [ "$LIST_LENGHT" -eq 1 ]; then
			WIRELESS_ADAPTER=${WLAN_INTERFACES[0]}
	else
			exec 3>&1
			WIRELESS_ADAPTER=$(dialog --nocancel --backtitle "$BACKTITLE" --no-collapse \
			--title "Select interface" --clear --menu "" $((6+${LIST_LENGHT})) 30 15 "${LIST[@]}" 2>&1 1>&3)
			exec 3>&-
	fi
}


# search for BT devices and connect
#
function connect_bt_interface ()
{
		IFS=$'\r\n'
		GLOBIGNORE='*'
		dialog --backtitle "$BACKTITLE" --title "Please wait" --infobox "\nDiscovering Bluetooth devices ... " 5 37
		BT_INTERFACES=($(hcitool scan | sed '1d'))

		local LIST=()
		for i in "${BT_INTERFACES[@]}"
		do
			local a=$(echo ${i[0]//[[:blank:]]/} | sed -e 's/^\(.\{17\}\).*/\1/')
			local b=${i[0]//$a/}
			local b=$(echo $b | sed -e 's/^[ \t]*//')
			LIST+=( "$a" "$b")
		done

		LIST_LENGHT=$((${#LIST[@]}/2));
		if [ "$LIST_LENGHT" -eq 0 ]; then
			BT_ADAPTER=${WLAN_INTERFACES[0]}
			dialog --backtitle "$BACKTITLE" --title "Bluetooth" --msgbox "\nNo nearby Bluetooth devices were found!" 7 43
		else
			exec 3>&1
			BT_ADAPTER=$(dialog --backtitle "$BACKTITLE" --no-collapse --title "Select interface" \
			--clear --menu "" $((6+${LIST_LENGHT})) 50 15 "${LIST[@]}" 2>&1 1>&3)
			exec 3>&-
			if [[ $BT_ADAPTER != "" ]]; then
				dialog --backtitle "$BACKTITLE" --title "Please wait" --infobox "\nConnecting to $BT_ADAPTER " 5 35
				BT_EXEC=$(expect -c 'set prompt "#";set address '$BT_ADAPTER';spawn bluetoothctl;expect -re $prompt;send "disconnect $address\r";sleep 1;send "remove $address\r";sleep 1;expect -re $prompt;send "scan on\r";sleep 8;send "scan off\r";expect "Controller";send "trust $address\r";sleep 2;send "pair $address\r";sleep 2;send "connect $address\r";send_user "\nShould be paired now.\r";sleep 2;send "quit\r";expect eof')
				echo "$BT_EXEC" > /tmp/bt-connect-debug.log
					if [[ $(echo "$BT_EXEC" | grep "Connection successful" ) != "" ]]; then
						dialog --backtitle "$BACKTITLE" --title "Bluetooth" --msgbox "\nYour device is ready to use!" 7 32
					else
						dialog --backtitle "$BACKTITLE" --title "Bluetooth" --msgbox "\nError connecting. Try again!" 7 32
					fi
			fi
		fi
}

#
#-----------------------------------------------------------------------------------------------------------------------------------------#

dialog --backtitle "$BACKTITLE" --title "Please wait" --infobox "\nLoading Armbian configuration utility ... " 5 45

# Main loop
#
while true; do

	DISPLAY_MANAGER=""; DESKTOP_INSTALLED=""
	[[ -n $(service lightdm status | grep -w active) ]] && DISPLAY_MANAGER="lightdm"
	[[ -n $(service nodm status | grep -w active) ]] && DISPLAY_MANAGER="nodm"
	[[ -d /etc/lightdm || -f /etc/default/nodm ]] && DESKTOP_INSTALLED="true"

	LIST=()
	#
	# here we add new items to menu. with condition when needed
	LIST+=( "Timezone" "Change your timezone" )
	[[ $(sed -n 's/^DEVNAME=//p' /sys/dev/block/$(mountpoint -d /)/uevent) == mmcblk* && -f /usr/sbin/nand-sata-install ]] && LIST+=( "Install" "Install to SATA, eMMC, NAND or USB" )
	if [[ -n $(service hostapd status | grep -w active | grep -w running) ]]; then
			[[ -n $(nmcli -f DEVICE,TYPE device status | grep wifi) ]] && LIST+=( "Hotspot" "Manage WiFi access point" )
		else
			[[ -n $(nmcli -f DEVICE,TYPE device status | grep wifi) ]] && LIST+=( "WiFi" "Connect to wireless access point" )
			[[ -n $(nmcli -f DEVICE,TYPE device status | grep wifi) ]] && LIST+=( "Hotspot" "Create WiFi access point" )
	fi
	[[ $(hcitool dev | sed '1d') != "" ]] && LIST+=( "Bluetooth" "Connect Bluetooth devices" )
	[[ -f /usr/bin/h3disp && "$LINUXFAMILY" = "sun8i" && "$BRANCH" = "default" && \
	-n $(bin2fex </boot/script.bin 2>/dev/null | grep -w "hdmi_used = 1") ]] && LIST+=( "Display" "set the display resolution" )

	if [[ -n $DISPLAY_MANAGER ]]; then
			LIST+=( "Desktop" "Disable desktop" )
			[[ $DISPLAY_MANAGER == 'nodm' ]] && LIST+=( "Lightdm" "Switch to standard login manager" )
			[[ $DISPLAY_MANAGER == 'lightdm' ]] && LIST+=( "Nodm" "Switch to simple auto login manager" )
			else
			LIST+=( "Desktop" "Enable desktop" )
	fi

	if [[ $DESKTOP_INSTALLED ]]; then
			if [[ $(service xrdp status | grep -w active) ]]; then
				LIST+=( "RDP" "Disable remote desktop from Windows" )
				else
				LIST+=( "RDP" "Enable remote desktop from Windows" )
			fi
	fi

	if [[ -n $(apt-mark showhold | grep -w "$BOARD") ]]; then
			LIST+=( "Unhold" "Un-Freeze kernel and board support packages" )
		else
			LIST+=( "Hold" "Freeze kernel and board support packages" )
	fi
	[[ -f /usr/bin/softy ]] && LIST+=( "Softy" "Application installer" )
	[[ ${#LIST[@]} > 0 ]] && LIST+=( "-" "" )
	[[ -f /usr/bin/h3consumption && "$LINUXFAMILY" = "sun8i" && "$BRANCH" = "default" ]] && \
	LIST+=( "Consumption" "Control board consumption" )
	[[ -f /usr/bin/armbianmonitor ]] && LIST+=( "Monitor" "Simple CLI monitoring" )
	[[ -f /usr/bin/armbianmonitor ]] && LIST+=( "Diagnostics" "Send diagnostics" )
	[[ -f /usr/bin/bin2fex && "$LINUXFAMILY" = sun*i && "$BRANCH" = "default" ]] && LIST+=( "Fexedit" "Board (fex) settings editor" )
	if [[ -n $(dpkg -l | grep linux-headers) ]]; then LIST+=( "Headers" "Remove kernel headers" ); else LIST+=( "Headers" "Install kernel headers" ); fi
	[[ -n $(grep -w "#kernel.printk" /etc/sysctl.conf ) ]] && LIST+=( "Lowlevel" "Stop low-level messages on console" )
	[[ -f /boot/armbianEnv.txt ]] && LIST+=( "Bootenv" "Edit boot environment" )
	[[ -f /boot/boot.ini ]] && LIST+=( "Bootscript" "Edit boot script" )
	LIST+=( "Network" "Edit network settings" )
	LIST+=( "-" "" )
	LIST+=( "Services" "Toggle running services" )
	[[ -d /boot/dtb/overlay && $LINUXFAMILY == sunxi && $BRANCH != default ]] && LIST+=( "Overlay" "Toggle hardware functions: UART, I2C, SPI, W1, ..." )
	LIST+=( "Welcome" "Toggle welcome screen items" )
	if [[ -z $(apt-mark showhold | grep -w "$BOARD") ]]; then
		[[ -f /etc/apt/sources.list.d/armbian.list ]] && [[ -n $(grep -w apt /etc/apt/sources.list.d/armbian.list) ]] \
		&& LIST+=( "Nightly" "Switch to nightly builds" )
		[[ -f /etc/apt/sources.list.d/armbian.list ]] && [[ -n $(grep -w beta /etc/apt/sources.list.d/armbian.list) ]] \
		&& LIST+=( "Stable" "Switch to stable builds" )
	fi
	[[ $(apt-cache search --names-only '^linux-'$(lsb_release  -cs)'-root.*.'$BOARD'' | sed 's/.*(\(.*\))/\1/' | awk '{print $1}' \
	| wc -l) -gt 1 ]] && LIST+=( "Switch" "Switch to alternative kernels" )
	if [[ "$DISTRO" == "Ubuntu" && "$(modinfo overlay > /dev/null 2>&1; echo $?)" == "0" ]]; then
		if [ -n "$(mount | grep -w tmpfs-root)" ]; then
			LIST+=( "Overlayroot" "Disable virtual read-only root filesystem" )
		else
			LIST+=( "Overlayroot" "Enable virtual read-only root filesystem" )
		fi
	fi
	# count number of menu items to adjust window sizee
	LISTLENGHT="$((7+${#LIST[@]}/2))"
	BOXLENGHT=${#LIST[@]}

	# main dialog routine
	DIALOG_CANCEL=1
	DIALOG_ESC=255

	exec 3>&1
	selection=$(dialog --backtitle "$BACKTITLE" --title "$TITLE" --clear \
	--cancel-label "Exit to shell" --menu "Please select:" $LISTLENGHT 70 $BOXLENGHT \
	"${LIST[@]}" 2>&1 1>&3)
	exit_status=$?
	exec 3>&-
	case $exit_status in
	$DIALOG_CANCEL)
		#clear
		#echo -e "\n\e[0;33mThank you for using Armbian configuration tool! Support: \e[1m\e[39mwww.armbian.com\x1B[0m\n"
		exit
	;;
	$DIALOG_ESC)
		clear
		exit 1
		;;
	esac

	dialog --backtitle "$BACKTITLE" --title "Please wait" --infobox "\nLoading submodule ... " 5 26

	case $selection in


	# Toggle welcome screen items
	#
	"Overlay" )
	# check if user agree to enter this area
			beta_disclaimer "You are entering beta area. Functions are not yet done - in case of troubles and advanced usage, check https://docs.armbian.com"
			if [[ -n $ACKNOWLEDGEMENT ]]; then
				overlay_prefix=$(cat /boot/armbianEnv.txt | grep overlay_prefix | sed 's/overlay_prefix=//g')
				TARGET_BRANCH=$BRANCH
				exceptions "$BRANCH"
				while true; do
				HOME="/boot/dtb/overlay"
				MOTD=()
				LINES=()
				LIST_CONST=2
				j=0
				DIALOG_CANCEL=1
				DIALOG_ESC=255

				while read line
				do
					STATUS=$([[ -n $(cat /boot/armbianEnv.txt | grep overlays | grep -w ${line}) ]] && echo "on")
					DESC=$(description "$line")
					MOTD+=( "$line" "$DESC" "$STATUS")
					LINES[ $j ]=$line
					(( j++ ))
				done < <(ls -1 $HOME/${overlay_prefix}*.dtbo | sed 's/^.*\('${overlay_prefix}'.*\)/\1/g' | sed 's/'${overlay_prefix}'-//g' | sed 's/.dtbo//g' )

						LISTLENGHT="$(($LIST_CONST+${#MOTD[@]}/2))"

						exec 3>&1
						selection=$(dialog --backtitle "$BACKTITLE" --title "Toggle motd executing scripts" --clear --cancel-label \
						"Exit" --ok-label "Save" --checklist "\nChoose what you want to enable or disable:\n " \
						$LISTLENGHT 70 22 "${MOTD[@]}" 2>&1 1>&3)
						exit_status=$?
						exec 3>&-
						case $exit_status in
						$DIALOG_CANCEL | $DIALOG_ESC)
								break
								;;
						0)
							newoverlays="$(echo "$selection" | sed "s|[^ ]* *|&|g")"
							sed -i "s/^overlays=.*/overlays=$newoverlays/" /boot/armbianEnv.txt || cat "overlays=$newoverlays" >> /boot/armbianEnv.txt
						;;
						esac
				done
			fi
	;;


	# Toggle welcome screen items
	#
	"Welcome" )
		while true; do
		HOME="/etc/update-motd.d/"
		MOTD=()
		LINES=()
		LIST_CONST=6
		j=0
		DIALOG_CANCEL=1
		DIALOG_ESC=255

		while read line
		do
				STATUS=$([[ -x ${HOME}${line} ]] && echo "on")
			DESC=$(description "$line")
			MOTD+=( "$line" "$DESC" "$STATUS")
			LINES[ $j ]=$line
			(( j++ ))
		done < <(ls -1 $HOME)

				LISTLENGHT="$(($LIST_CONST+${#MOTD[@]}/2))"

				exec 3>&1
				selection=$(dialog --backtitle "$BACKTITLE" --title "Toggle motd executing scripts" --clear --cancel-label \
				"Exit" --ok-label "Save" --checklist "\nChoose what you want to enable or disable:\n " \
				$LISTLENGHT 70 15 "${MOTD[@]}" 2>&1 1>&3)
				exit_status=$?
				exec 3>&-
				case $exit_status in
				$DIALOG_CANCEL | $DIALOG_ESC)
						break
						;;
				0)
						chmod -x ${HOME}*
						chmod +x $(echo "$selection" | sed "s|[^ ]* *|${HOME}&|g")
				;;
				esac
		done
	;;


	# Set the display resolution
	#
	"Display" )
		h3disp
		exit
	;;

	"RDP" )
		if [[ -n $(service xrdp status | grep -w active) ]]; then
			systemctl stop xrdp.service >/dev/null 2>&1
			systemctl disable xrdp.service >/dev/null 2>&1
		else
			apt-get -y -qq --no-install-recommends install xrdp vnc4server
			systemctl enable xrdp.service >/dev/null 2>&1
			systemctl start xrdp.service >/dev/null 2>&1
			dialog --title "Info" --backtitle "$BACKTITLE" --nocancel --no-collapse --pause \
			"\nRemote graphical login to $BOARD_NAME using Microsoft Remote Desktop Protocol (RDP) is enabled." 11 57 3
		fi
	;;


	"Nodm" )
		systemctl disable lightdm.service >/dev/null 2>&1
		systemctl stop lightdm.service >/dev/null 2>&1
		sed -i "s/^NODM_ENABLED=.*/NODM_ENABLED=true/" /etc/default/nodm && service nodm start
	;;

	"Lightdm" )
		service nodm stop && sed -i "s/^NODM_ENABLED=.*/NODM_ENABLED=false/" /etc/default/nodm
		apt-get -o Dpkg::Options::="--force-confold" -y -qq --no-install-recommends install lightdm-gtk-greeter lightdm >/dev/null 2>&1
		systemctl enable lightdm.service >/dev/null 2>&1
		systemctl start lightdm.service >/dev/null 2>&1
	;;


	# Enable or disable desktop
	#
	"Desktop" )
		if [[ -n $(service lightdm status | grep -w active | grep -w running) || -n $(service nodm status | grep -w active | grep -w running) ]]; then
			dialog --title "Desktop is enabled and running" --backtitle "$BACKTITLE" \
			--yes-label "Stop" --no-label "Cancel" --yesno "\nDo you want to stop and disable this service?" 7 50
			exitstatus=$?;
			[[ $exitstatus = 0 ]] && service nodm stop && service lightdm stop && sed -i "s/^NODM_ENABLED=.*/NODM_ENABLED=false/" /etc/default/nodm
		else
			dialog --title "Choose a display manager" --backtitle "$BACKTITLE" --help-button --help-label "Cancel" --yes-label "Lightdm" \
			--no-label "Nodm" --yesno "\nLightdm = full featured login display manager\nNodm = autoloading into desktop" 8 70
			exitstatus=$?;
			[[ $exitstatus = 0 ]] && apt-get -o Dpkg::Options::="--force-confold" -y -qq --no-install-recommends install lightdm-gtk-greeter lightdm >/dev/null 2>&1 && systemctl start lightdm.service
			[[ $exitstatus = 1 ]] && sed -i "s/^NODM_ENABLED=.*/NODM_ENABLED=true/" /etc/default/nodm && service nodm start
		fi
	;;


	# Control board consumption
	#
	"Consumption" )
		h3consumption
		exit
	;;


	# Board (fex) settings editor
	#
	"Fexedit" )
		TEMP=$(mktemp -d || exit 1)
		trap "rm -rf \"${TEMP}\" ; exit 0" 0 1 2 3 15
		bin2fex /boot/script.bin ${TEMP}/tempfex.txt >/dev/null 2>&1
		dialog --title "Edit u-boot environment" \
		--ok-label "Save" --no-collapse --editbox ${TEMP}/tempfex.txt  40 0 2> ${TEMP}/tempfex.out
		[[ $? = 0 ]] && fex2bin ${TEMP}/tempfex.out /boot/script.bin
	;;


	# Toggle running services
	#
	"Services" )
		rcconf
	;;

	# Change timezone
	#
	"Timezone" )
		dpkg-reconfigure tzdata
	;;

	"Headers" )
		TARGET_BRANCH=$BRANCH
		exceptions "$BRANCH"
		if [[ -n $(dpkg -l | grep linux-headers) ]]; then
			debconf-apt-progress -- apt-get -y remove linux-headers${TARGET_BRANCH}-${TARGET_FAMILY}
		else
			debconf-apt-progress -- apt-get -y install linux-headers${TARGET_BRANCH}-${TARGET_FAMILY}
		fi
	;;

	# Stop low-level messages on console
	#
	"Lowlevel" )
		dialog --title "Kernel messages" --backtitle "$BACKTITLE" --help-button \
		--help-label "Yes & reboot" --yes-label "Yes" --no-label "Cancel" --yesno "\nStop low-level messages on console?" 7 64
		exitstatus=$?;
		[[ $exitstatus = 0 ]] && sed -i 's/^#kernel.printk\(.*\)/kernel.printk\1/' /etc/sysctl.conf
		[[ $exitstatus = 2 ]] && sed -i 's/^#kernel.printk\(.*\)/kernel.printk\1/' /etc/sysctl.conf && reboot
	;;

	# Toggle virtual read-only root filesystem
	#
	"Overlayroot" )
		if [[ -n $(mount | grep -w overlay) ]]; then
			dialog --title "Root overlay" --backtitle "$BACKTITLE" --yes-label "Disable" \
			--no-label "Cancel" \
			--yesno "\nYour system is already virtual read-only.\n\nDo you want to disable this feature and reboot?" 9 60
			[[ $? = 0 ]] && overlayroot-chroot sed -i "s/^overlayroot=.*/overlayroot=\"\"/" /etc/overlayroot.conf && \
			overlayroot-chroot rm /etc/update-motd.d/97-overlayroot && reboot
		else
			debconf-apt-progress -- apt-get -o Dpkg::Options::="--force-confnew" -y --no-install-recommends install overlayroot
			echo '#!/bin/bash' > /etc/update-motd.d/97-overlayroot
			echo 'if [ -n "$(mount | grep -w tmpfs-root)" ]; then echo -e "\n[\e[0m \e[1mremember: your system is in virtual read only mode\e[0m ]";fi' >> /etc/update-motd.d/97-overlayroot
			chmod +x /etc/update-motd.d/97-overlayroot
			dialog --title "Root overlay" --backtitle "$BACKTITLE" --yes-label "Reboot" \
			--no-label "Cancel" --yesno "\nEnable virtual read-only root and reboot." 7 45
			[[ $? = 0 ]] && sed -i "s/^overlayroot=.*/overlayroot=\"tmpfs\"/" /etc/overlayroot.conf && reboot
		fi
	;;

	# Edit network settings
	#
	"Network" )
		dialog --backtitle "$BACKTITLE" --title "Edit network configuration" --no-collapse \
		--ok-label "Save" --editbox /etc/network/interfaces 30 0 2> /etc/network/interfaces.out
		[[ $? = 0 ]] && mv /etc/network/interfaces.out /etc/network/interfaces && service network-manager restart
	;;

	# Create WiFi access point
	#
	"Hotspot" )
		systemctl daemon-reload
		CURRENT_UUID=$(nmcli -f UUID,TYPE connection show --active | grep wireless | awk '{print $1}')
		if [[ -n $(service hostapd status | grep -w active | grep -w running) ]]; then
			dialog --title "Hostapd service is running" --backtitle "$BACKTITLE" --help-button --help-label "Cancel" --yes-label "Stop" \
			--no-label "Edit" --yesno "\nStop: stop and disable\n\nEdit: change basic parameters: SSID, password and channel" 9 70
			exitstatus=$?;
			if [[ $exitstatus = 0 ]]; then
				service hostapd stop
				sed -i "s/^DAEMON_CONF=.*/DAEMON_CONF=/" /etc/init.d/hostapd
				systemctl daemon-reload
				rm /etc/NetworkManager/conf.d/armbian.conf
				service network-manager reload
			fi
			if [[ $exitstatus = 1 ]]; then wlan_edit; service hostapd stop; sleep 1; service hostapd start; fi
		elif [[ -n $CURRENT_UUID ]]; then
				dialog --title "Info" --backtitle "$BACKTITLE" --no-collapse \
				--yesno "\nWireless connection is in use.\n\nDo you want to disconnect?" 9 57
				[[ $? = 0 ]] && nmcli connection down uuid $CURRENT_UUID
		else
			# check if user agree to enter this area
			beta_disclaimer "Wireless networking in Linux is problematic. Our tools make it easy for some cases but can't enable AP on every random WiFi chip. If this tool fail, check manual methods."
			if [[ -n $ACKNOWLEDGEMENT ]]; then
				# change special adapters to AP mode
				wlan_exceptions "on"
				# check for WLAN interfaces
				get_wlan_interface
				# add interface to unmanaged list
				echo "[keyfile]" > /etc/NetworkManager/conf.d/armbian.conf
				echo "unmanaged-devices=interface-name:$WIRELESS_ADAPTER" >>/etc/NetworkManager/conf.d/armbian.conf
				service network-manager reload
				# display dialog
				dialog --backtitle "$BACKTITLE" --title "Please wait" \
				--infobox "\nWireless adapter: $WIRELESS_ADAPTER\n\nProbing nl80211 hostapd driver compatibility." 7 50
				apt-get -o Dpkg::Options::="--force-confnew" -y -qq --no-install-recommends install hostapd > /dev/null
				# change to selected interface
				sed -i "s/^interface=.*/interface=$WIRELESS_ADAPTER/" /etc/hostapd.conf
				# add hostapd.conf to services
				sed -i "s/^DAEMON_CONF=.*/DAEMON_CONF=\/etc\/hostapd.conf/" /etc/init.d/hostapd
				# check both options
				CHECK=$(systemctl daemon-reload;service hostapd restart;service hostapd status|grep fail)
				if [[ -n "$CHECK" ]]; then
					dialog --backtitle "$BACKTITLE" --title "Please wait" \
					--infobox "\nWireless adapter: $WIRELESS_ADAPTER\n\nProbing Realtek hostapd driver compatibility." 7 50
					apt-get -o Dpkg::Options::="--force-confnew" -y -qq --no-install-recommends install hostapd-realtek > /dev/null
					# change to selected interface
					sed -i "s/^interface=.*/interface=$WIRELESS_ADAPTER/" /etc/hostapd.conf
				fi
				CHECK=$(systemctl daemon-reload;service hostapd restart;service hostapd status|grep fail)
				# if both fails there is other problem
				if [[ -n "$CHECK" ]]; then
					dialog --backtitle "$BACKTITLE" --title "Warning" \
					--infobox "\nWireless adapter: $WIRELESS_ADAPTER\n\nNo compatible hostapd driver found." 7 39
					sed -i "s/^DAEMON_CONF=.*/DAEMON_CONF=/" /etc/init.d/hostapd
					systemctl daemon-reload;service hostapd restart
					sleep 3
					exit
				fi

				dialog --title "Choose Access Point mode for $WIRELESS_ADAPTER" --backtitle "$BACKTITLE" --help-button \
				--help-label "Manual" --yes-label "Bridge" --no-label "NAT" --yesno "\nBridge: wireless clients will use your routers DHCP \
				server\n\nNAT: with own DHCP server, out of your primary network\n\nManual: edit configuration manually" 11 70
				response=$?
				DEFAULT_ADAPTER=$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)')
				NETWORK_CONF="/etc/network/interfaces"
				dialog --title "Network configuration" --backtitle "$BACKTITLE" --yesno "\nStart with clean config?" 7 29
				[[ $? = 0 ]] && NETWORK_CONF="/etc/network/interfaces.default";

				TEMP_CONF="/etc/network/interfaces.out"
				cp $NETWORK_CONF $TEMP_CONF

				case $response in
					# bridge
					0)
						sed -i '/^#/ d' $TEMP_CONF
						apt-get -qq -y --no-install-recommends install bridge-utils >> /dev/null
						sed -i "s/^auto lo.*/auto lo br0/" $TEMP_CONF
						# if we have dhcp on default adapter
						if [[ -n $(grep dhcp $TEMP_CONF | grep "$DEFAULT_ADAPTER" | grep -v br) ]]; then
							sed -i "s/^iface $DEFAULT_ADAPTER inet dhcp/iface $DEFAULT_ADAPTER inet manual/" $TEMP_CONF
							echo -e "\niface br0 inet dhcp\nbridge_ports $DEFAULT_ADAPTER $WIRELESS_ADAPTER" >> $TEMP_CONF
							echo -e "\nauto $WIRELESS_ADAPTER\niface $WIRELESS_ADAPTER inet manual" >> $TEMP_CONF
						#fi
						# if we have static on default adapter
						#if [[ -n $(grep static $TEMP_CONF | grep "$DEFAULT_ADAPTER" | grep -v br) ]]; then
						else
							sed -i "s/^iface $DEFAULT_ADAPTER inet static/iface $DEFAULT_ADAPTER inet manual/" $TEMP_CONF
							sed -i "/^iface $DEFAULT_ADAPTER inet manual/a iface br0 inet static" $TEMP_CONF
							echo -e "bridge_ports $DEFAULT_ADAPTER $WIRELESS_ADAPTER" >> $TEMP_CONF
							echo -e "\nauto $WIRELESS_ADAPTER\niface $WIRELESS_ADAPTER inet manual" >> $TEMP_CONF
						fi
						sed -i 's/^bridge=.*/bridge=br0/' /etc/hostapd.conf
					;;

					# NAT
					1)
						sed -i '/^#/ d' $TEMP_CONF
						debconf-apt-progress -- apt-get -qq -y --no-install-recommends install dnsmasq iptables
						echo -e "\nallow-hotplug $WIRELESS_ADAPTER\niface $WIRELESS_ADAPTER inet static " >> $TEMP_CONF
						echo -e "\naddress 172.24.1.1\nnetmask 255.255.255.0\nnetwork 172.24.1.0\nbroadcast 172.24.1.255" >> $TEMP_CONF
						# create new configuration
						echo "interface=$WIRELESS_ADAPTER				# Use interface $WIRELESS_ADAPTER" > /etc/dnsmasq.conf
						echo "listen-address=172.24.1.1					# Explicitly specify the address to listen on" >> /etc/dnsmasq.conf
						echo "bind-interfaces							# Bind to the interface to make sure we aren't sending \
						things elsewhere" >> /etc/dnsmasq.conf
						echo "server=8.8.8.8							# Forward DNS requests to Google DNS" >> /etc/dnsmasq.conf
						echo "domain-needed								# Don't forward short names" >> /etc/dnsmasq.conf
						echo "bogus-priv								# Never forward addresses in the non-routed address spaces" \
						>> /etc/dnsmasq.conf
						echo "dhcp-range=172.24.1.50,172.24.1.150,12h	# Assign IP addresses between 172.24.1.50 and 172.24.1.150 with \
						a 12 hour lease time" >> /etc/dnsmasq.conf
						# - Enable IPv4 forwarding
						sed -i "/net.ipv4.ip_forward=/c\net.ipv4.ip_forward=1" /etc/sysctl.conf
						echo 1 > /proc/sys/net/ipv4/ip_forward
						# - Apply iptables
						iptables -t nat -A POSTROUTING -o $DEFAULT_ADAPTER -j MASQUERADE
						iptables -A FORWARD -i $DEFAULT_ADAPTER -o $WIRELESS_ADAPTER -m state --state RELATED,ESTABLISHED -j ACCEPT
						iptables -A FORWARD -i $WIRELESS_ADAPTER -o $DEFAULT_ADAPTER -j ACCEPT
						# - Save IP tables, applied during ifup in /etc/network/interfaces.
						iptables-save > /etc/iptables.ipv4.nat
						service dnsmasq restart
						sed -i 's/^bridge=.*/#&/' /etc/hostapd.conf
						sed -e 's/exit 0//g' -i /etc/rc.local
						echo "iptables-restore < /etc/iptables.ipv4.nat" >> /etc/rc.local
						echo "exit 0" >> /etc/rc.local
					;;
				3)exit;;

				255) exit;;
				esac
				dialog --title "Manually adjust network configuration if needed" --backtitle "$BACKTITLE" \
				--ok-label "Reboot to apply new settings" --no-collapse --editbox $TEMP_CONF 30 0 2> $TEMP_CONF".tmp"
				response=$?
				service hostapd stop
				if [[ $response = 0 ]]; then
					mv $TEMP_CONF /etc/network/interfaces
					service networking restart
					ifdown $DEFAULT_ADAPTER
					ifup $DEFAULT_ADAPTER
					service hostapd start
					#reboot
				fi
			fi
		fi
	;;


	# Connect to Bluetooth
	#
	"Bluetooth" )
	dialog --backtitle "$BACKTITLE" --title "Bluetooth" --msgbox "\nMake sure your Bluetooth devices are discoverable!" 7 54
	connect_bt_interface
	;;

	# Edit boot environment
	#
	"Bootenv" )
		dialog --title "Edit u-boot environment" --ok-label "Save" \
		--no-collapse --editbox /boot/armbianEnv.txt 30 0 2> /boot/armbianEnv.txt.out
		[[ $? = 0 ]] && mv /boot/armbianEnv.txt.out /boot/armbianEnv.txt
	;;

	# Edit boot script
	#
	"Bootscript" )
		if [[ -f /boot/boot.ini ]]; then
		dialog --title "Edit boot.ini script" --ok-label "Save" \
		--no-collapse --editbox /boot/boot.ini 30 0 2> /boot/boot.ini.out
		[[ $? = 0 ]] && mv /boot/boot.ini.out /boot/boot.ini
		fi
	;;

	# Switch to daily builds
	#
	"Nightly" )
		dialog --title "Warning" --backtitle "$BACKTITLE" --yes-label "OK" --no-label "Cancel" \
		--yesno "\nYou are switching to automated nightly repository which is untested and might break your system.\
		Are you fine with that?" 9 48
		if [[ $? = 0 ]]; then
			sed -i 's/apt.armbian.com/beta.armbian.com/' /etc/apt/sources.list.d/armbian.list
			debconf-apt-progress -- apt-get update
			debconf-apt-progress -- apt-get -y upgrade
			dialog --title "Switching to nightly" --backtitle "$BACKTITLE" --yes-label "Reboot" \
			--no-label "Cancel" --yesno "\nReboot to apply new settings?" 7 34
			if [[ $? = 0 ]]; then reboot; fi
		fi
	;;


	# Switch to stable builds
	#
	"Stable" )
		dialog --title "Warning" --backtitle "$BACKTITLE" --yes-label "OK" --no-label "Cancel" \
		--yesno "\nYou are switching back to stable respository where you are going to get future updates.\
		Are you fine with that?" 9 44
		if [[ $? = 0 ]]; then
			sed -i 's/beta.armbian.com/apt.armbian.com/' /etc/apt/sources.list.d/armbian.list
			debconf-apt-progress -- apt-get update
			debconf-apt-progress -- apt-get -y upgrade
			dialog --title "Switching to stable" --backtitle "$BACKTITLE" --yes-label "Reboot" --no-label "Cancel" --yesno \
			"\nReboot to apply new settings?" 7 34
			if [[ $? = 0 ]]; then reboot; fi
		fi
	;;


	# Freeze and unfreeze kernel and board support packages
	#
	"Hold" | "Unhold" )
		dialog --title "Update" --backtitle "$BACKTITLE" --yes-label "$selection" --no-label "Cancel" \
		--yesno "\nDo you want to ${selection,,} kernel updates?" 7 50
		if [[ $? = 0 ]]; then
		TARGET_BRANCH=$BRANCH
		exceptions "$BRANCH"
		PACKAGE_LIST="linux-image${TARGET_BRANCH}-${TARGET_FAMILY} linux-headers${TARGET_BRANCH}-${TARGET_FAMILY} linux-u-boot-${BOARD}-${UBOOT_BRANCH} linux-$(lsb_release -cs)-root$TARGET_BRANCH-$BOARD"
		[[ $BRANCH != "default" ]] && PACKAGE_LIST=$PACKAGE_LIST" linux-dtb$TARGET_BRANCH-$TARGET_FAMILY"
		apt-mark ${selection,,} $PACKAGE_LIST | dialog --backtitle "$BACKTITLE" --title "Package locking" --progressbox 7 64
		fi
	;;


	# Install to SATA, eMMC, NAND or USB
	#
	"Install" )
		nand-sata-install
	;;


	# Connect to wireless access point
	#
	"WiFi" )
		# scan for wifi modules
		array=( $(nmcli dev | grep "wifi" | awk '{print $1}') )
		declared_wlans=0;
		for i in "${array[@]}"
			do
			if grep --quiet "^iface $i" /etc/network/interfaces; then
				let declared_wlans+=1
			fi
		done
		if [[ -n $(service hostapd status | grep -w active | grep -w running) ]]; then
			DIALOG_CANCEL=1
			dialog --title "Hostapd service is running" --backtitle "$BACKTITLE" --help-button --help-label "Cancel" --yes-label "Stop" \
			--no-label "Edit" --yesno "\nStop: stop and disable\n\nEdit: change basic parameters: SSID, password and channel" 9 70
			exitstatus=$?;
			if [[ $exitstatus = 0 ]]; then service hostapd stop ; sed -i "s/^DAEMON_CONF=.*/DAEMON_CONF=/" /etc/init.d/hostapd; \
			systemctl daemon-reload; fi
			if [[ $exitstatus = 1 ]]; then wlan_edit; service hostapd stop; sleep 1; service hostapd start; fi
		elif [ $declared_wlans = ${#array[@]} ]; then
			dialog --title "Error" --backtitle "$BACKTITLE" --no-collapse \
			--msgbox "\nWireless network is in use by if-up service. Remove it from config." 8 57
		else
			CURRENT_UUID=$(nmcli -f UUID,TYPE connection show --active | grep wireless | awk '{print $1}')
			if [[ -n $(service hostapd status | grep -w active | grep -w running) ]]; then
				dialog --title "Error" --backtitle "$BACKTITLE" --no-collapse \
				--msgbox "\nHostapd service is running. Disable it and try again." 7 57
				exit
			elif [[ -n $CURRENT_UUID ]]; then
				dialog --title "Info" --backtitle "$BACKTITLE" --no-collapse \
				--yesno "\nAlready connected via wireless.\n\nDo you want to disconnect?" 9 57
				[[ $? = 0 ]] && nmcli connection down uuid $CURRENT_UUID
			else
			# disable AP mode on certain adapters
			wlan_exceptions "off"
			nmtui-connect
			fi
		fi
	;;


	# Send diagnostics
	#
	"Diagnostics" )
		clear
		armbianmonitor -u
		echo ""
		read -n 1 -s -p "Press any key to continue"
	;;


	# Application installer
	#
	"Softy" )
		softy
	;;


	# Switch to alternative kernels
	#
	"Switch" )
		aval_kernel
		exceptions "$INSTALL_KERNEL"
		dialog --title "Install and reboot" --backtitle "$BACKTITLE" --yes-label "OK" --no-label "Cancel" \
		--yesno "\nSwitching to linux-image${TARGET_BRANCH}-${TARGET_FAMILY} \n\nMake sure you know what you are doing! \
		\n\nBoard config will be reverted to defaults." 11 46
		if [[ $? = 0 ]]; then
			# remove old
			dialog --backtitle "$BACKTITLE" --title "Please wait" --infobox "\nRemoving current kernel." 5 28
			apt-get -s -y -qq --no-install-recommends install linux-image${TARGET_BRANCH}-${TARGET_FAMILY} \
			linux-headers${TARGET_BRANCH}-${TARGET_FAMILY} linux-u-boot-${BOARD}-${UBOOT_BRANCH} \
			linux-$(lsb_release -cs)-root$TARGET_BRANCH-$BOARD > /dev/null 2>&1
			# if test download is ok, remove old kernel
			if [[ $? = 0 ]]; then
				aptitude remove ~nlinux-image --quiet=100 >> /var/log/upgrade.log
				aptitude remove ~nlinux-dtb --quiet=100 >> /var/log/upgrade.log
				aptitude remove ~nlinux-headers --quiet=100 >> /var/log/upgrade.log
			fi
			# install new
			debconf-apt-progress -- apt-get -y	--no-install-recommends install linux-image${TARGET_BRANCH}-${TARGET_FAMILY} \
			linux-headers${TARGET_BRANCH}-${TARGET_FAMILY} linux-u-boot-${BOARD}-${UBOOT_BRANCH} \
			linux-$(lsb_release -cs)-root$TARGET_BRANCH-$BOARD
			[[ $UBOOT_BRANCH != "default" ]] && debconf-apt-progress -- apt-get -y --no-install-recommends \
			install linux-dtb$TARGET_BRANCH-$TARGET_FAMILY
			reboot
		fi
	;;

	# Simple CLI monitoring
	#
	"Monitor" )
		clear
		armbianmonitor -m | dialog --backtitle "$BACKTITLE" --title "Simple CLI monitoring $BOARD" --progressbox 15 64
	;;

	esac

done