Add support for managing LTE modem connection. Only one configuration enabled for now

debian-config-functions-network

@@ -7,6 +7,8 @@
 # warranty of any kind, whether express or implied.
 
 # Functions:
+# initialize_lte
+# function lte
 # check_hostapd
 # check_advanced_modes
 # create_if_config
@@ -27,6 +29,124 @@
 # connect_bt_interface
 
 
+
+#
+# 3G/4G general stuff
+#
+function initialize_lte ()
+{
+# This file defines udev rules for some 3G/UMTS/LTE modems.  It
+# addresses the issue that the ttyUSB devices are numbered randomly, and
+# their numbering can vary between server reboots.  These rules create
+# persistent symlinks which can be reliably used in WWAN interface
+# startup scripts.
+
+# These rules assume that there is only one WWAN modem in the system. In
+# order to address multiple WWAN cards, the rules need to be more
+# specific and associate with serial numbers of the modems.
+
+# Copyright (c) 2016 Stanislav Sinyagin <ssinyagin@k-open.com>.
+
+# This content is published under Creative Commons Attribution 4.0
+# International (CC BY 4.0) lincense.
+# Source repository: https://github.com/ssinyagin/wwan_udev_rules
+
+if ! check_if_installed ppp then; then
+        apt-get -y -qq install ppp >/dev/null 2>&1
+fi
+cat >/etc/udev/rules.d/99-wwan.rules <<'EOT'
+
+
+# Source repository: https://github.com/ssinyagin/wwan_udev_rules
+
+# Huawei ME909s-120 LTE modem
+SUBSYSTEM=="tty", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="15c1", SYMLINK+="ttyWWAN%E{ID_USB_INTERFACE_NUM}"
+SUBSYSTEM=="net", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="15c1", NAME="lte0"
+
+# Huawei MU709s-2 UMTS modem
+SUBSYSTEM=="tty", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1c25", SYMLINK+="ttyWWAN%E{ID_USB_INTERFACE_NUM}"
+SUBSYSTEM=="net", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1c25", NAME="umts0"
+
+# Qualcomm Gobi2000
+SUBSYSTEM=="tty", ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="251d", SYMLINK+="ttyWWAN%E{ID_USB_INTERFACE_NUM}"
+
+# Sierra Wireless MC8775
+SUBSYSTEM=="tty", ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="1e1d", SYMLINK+="ttyWWAN%E{.ID_PORT}"
+
+# Novatel Wireless, Inc. Expedite E371
+SUBSYSTEM=="tty", ATTRS{idVendor}=="413c", ATTRS{idProduct}=="819b", SYMLINK+="ttyWWAN%E{ID_USB_INTERFACE_NUM}"
+
+# SIMCom SIM7100
+SUBSYSTEM=="tty", ATTRS{idVendor}=="1e0e", ATTRS{idProduct}=="9001", SYMLINK+="ttyWWAN%E{ID_USB_INTERFACE_NUM}"
+SUBSYSTEM=="net", ATTRS{idVendor}=="1e0e", ATTRS{idProduct}=="9001", NAME="lte0"
+EOT
+
+# reload udev rules
+udevadm control --reload-rules && udevadm trigger
+}
+
+
+
+
+#
+# 3G/4G init scripts add + remove
+#
+function lte ()
+{
+case $1 in
+	"12d1:15c1" )
+	# Huawei ME909s-120 LTE modem
+	LTE_MODEM_ID=$1
+	if [[ $2 == on && $(cat /sys/class/net/lte0/operstate) == "up" ]]; then
+		show_box  "Warning" "Huawei ME909s-120 LTE modem is up and running" 7
+	elif [[ $2 == on ]]; then
+		show_box  "Info" "Huawei ME909s-120 LTE modem will try to connect" 7
+cat >/etc/chatscripts/sunrise.HUAWEI <<'EOT'
+ABORT BUSY
+ABORT 'NO CARRIER'
+ABORT ERROR
+TIMEOUT 10
+'' ATZ
+OK 'AT+CFUN=1'
+OK 'AT+CMEE=1'
+OK 'AT\^NDISDUP=1,1,"internet"'
+OK
+EOT
+cat >/etc/chatscripts/gsm_off.HUAWEI <<'EOT'
+ABORT ERROR
+TIMEOUT 5
+'' AT+CFUN=0 OK
+EOT
+
+cat >/etc/network/interfaces.d/lte0 <<'EOT'
+allow-hotplug lte0
+iface lte0 inet dhcp
+    pre-up /usr/sbin/chat -v -f /etc/chatscripts/sunrise.HUAWEI >/dev/ttyWWAN02 </dev/ttyWWAN02
+    post-down /usr/sbin/chat -v -f /etc/chatscripts/gsm_off.HUAWEI >/dev/ttyWWAN02 </dev/ttyWWAN02
+EOT
+
+		# disable interface
+		ifup lte0 2> /dev/null
+
+	elif [[ $2 == off ]]; then
+		show_box  "Warning" "Huawei ME909s-120 LTE will kill connection" 7
+		# enable interface
+		ifdown lte0 2> /dev/null
+		rm /etc/chatscripts/sunrise.HUAWEI
+		rm /etc/chatscripts/gsm_off.HUAWEI
+		rm /etc/network/interfaces.d/lte0
+	elif [[ $(cat /sys/class/net/lte0/operstate) == "up" ]]; then
+		LTE_MODEM="Huawei ME909s-120 LTE modem is online"
+	else
+		LTE_MODEM="Huawei ME909s-120 LTE modem is offline"
+	fi
+	;;
+esac
+}
+
+
+
+
 #
 # check hostapd configuration. Return error or empty if o.k.
 #

debian-config-jobs

 #!/bin/bash
 #
+#
 # Copyright (c) 2017 Igor Pecovnik, igor.pecovnik@gma**.com
 #
 # This file is licensed under the terms of the GNU General Public
@@ -279,6 +280,19 @@ function jobs ()
 	;;
 
 
+	# Connect to 3G/4G network
+	#
+	"LTE" )
+			if [[ $LTE_MODEM == *online* ]]; then
+				dialog --title " LTE modem is connected " --colors --backtitle "$BACKTITLE" --yes-label "Back" --no-label "Disconnect" --yesno "\n\Z1Disconnect:\Z0 kill mobile connection\n\n" 7 42
+				[[ $? = 1 ]] && lte "$LTE_MODEM_ID" "off"
+			else
+				dialog --title " LTE modem is disconnected " --colors --backtitle "$BACKTITLE" --yes-label "Back" --no-label "Connect" --yesno "\n\Z1Connect:\Z0 dial mobile connection\n\n" 7 42
+				[[ $? = 1 ]] && lte "$LTE_MODEM_ID" "on"
+			fi
+	;;
+
+
 	# Connect to wireless access point
 	#
 	"Clear" )

debian-config-submenu

@@ -141,6 +141,9 @@ while true; do
 	DIALOG_CANCEL=1
 	DIALOG_ESC=255
 
+	# check if we have some LTE modems
+	for i in $(lsusb | awk '{print $6}'); do lte "$i"; done;
+
 	# edit ip
 	LIST+=( "IP" "Select dynamic or edit static IP address" )
 
@@ -171,6 +174,13 @@ while true; do
 	else
 		LIST+=( "Clear" "Clear possible blocked interfaces" )
 	fi
+
+	if [[ -n $LTE_MODEM ]]; then
+		# apply udev rules
+		initialize_lte
+		LIST+=( "LTE" "$LTE_MODEM" )
+	fi
+
 	check_if_installed lirc && LIST+=( "Remove IR" "Remove IR support" ) || LIST+=( "IR" "Install IR support" )
 	if check_if_installed bluetooth then ; then
 			LIST+=( "BT remove" "Remove Bluetooth support" )