110 lines
3.4 KiB
Bash
110 lines
3.4 KiB
Bash
#!/usr/bin/env bash
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# call with ESSID and optionally a password
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# when called without an ESSID, it will attempt
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# to reconnect to a previously chosen network
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function connect () {
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WPA_PASS_FILE="/tmp/wpa_pass.txt"
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PERSISTENT_WIFI_NETWORK_FILE="/home/pi/wifi_network.txt"
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CURRENT_WIFI_NETWORK_FILE="/tmp/current_wifi_network.txt" # used to repair connection when we lose it
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LOST_WIFI_FILE="/tmp/lost_wifi.txt"
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ESSID="${1}"
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PASSWORD="${2}"
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PERSIST="${3}"
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NO_AP="${4}"
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sleep 3
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sudo pkill -f keep_wifi_alive.sh
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WIFI_WAS_LOST=$?
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# make network choice persistent
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if [ -n "${ESSID}" ] ; then
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if [ -n "${PERSIST}" ] ; then
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logger -t posbox_connect_to_wifi "Making network selection permanent"
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sudo mount -o remount,rw /
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echo "${ESSID}" > ${PERSISTENT_WIFI_NETWORK_FILE}
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echo "${PASSWORD}" >> ${PERSISTENT_WIFI_NETWORK_FILE}
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sudo mount -o remount,ro /
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fi
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else
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logger -t posbox_connect_to_wifi "Reading configuration from ${PERSISTENT_WIFI_NETWORK_FILE}"
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ESSID=$(head -n 1 "${PERSISTENT_WIFI_NETWORK_FILE}" | tr -d '\n')
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PASSWORD=$(tail -n 1 "${PERSISTENT_WIFI_NETWORK_FILE}" | tr -d '\n')
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fi
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echo "${ESSID}" > ${CURRENT_WIFI_NETWORK_FILE}
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echo "${PASSWORD}" >> ${CURRENT_WIFI_NETWORK_FILE}
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logger -t posbox_connect_to_wifi "Connecting to ${ESSID}"
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sudo service hostapd stop
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sudo killall nginx
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current_iotbox_version=$(cat "/var/odoo/iotbox_version")
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# Above this version we need the NetworkManager
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required_version="23.09"
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if [[ "$current_iotbox_version" > "$required_version" ]]; then
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logger -t posbox_connect_to_wifi "USING NETWORK MANAGER"
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# Necessary when comming from the access point
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sudo ip address del 10.11.12.1/24 dev wlan0
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sudo nmcli g reload
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if [ -z "${PASSWORD}" ] ; then
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sudo nmcli d wifi connect "${ESSID}"
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else
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sudo nmcli d wifi connect "${ESSID}" password "${PASSWORD}"
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fi
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sudo service nginx restart
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else
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logger -t posbox_connect_to_wifi "USING WPA_SUPPLICANT"
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sudo service nginx restart
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sudo service dnsmasq stop
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sudo pkill wpa_supplicant
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sudo ifconfig wlan0 down
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sudo ifconfig wlan0 0.0.0.0 # this is how you clear the interface's configuration
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sudo ifconfig wlan0 up
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if [ -z "${PASSWORD}" ] ; then
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sudo iwconfig wlan0 essid "${ESSID}"
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else
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# Necessary in stretch: https://www.raspberrypi.org/forums/viewtopic.php?t=196927
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sudo cp /etc/wpa_supplicant/wpa_supplicant.conf "${WPA_PASS_FILE}"
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sudo chmod 777 "${WPA_PASS_FILE}"
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sudo wpa_passphrase "${ESSID}" "${PASSWORD}" >> "${WPA_PASS_FILE}"
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sudo wpa_supplicant -B -i wlan0 -c "${WPA_PASS_FILE}"
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fi
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sudo systemctl daemon-reload
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sudo service dhcpcd restart
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fi
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# give dhcp some time
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timeout 30 sh -c 'until ifconfig wlan0 | grep "inet " ; do sleep 0.1 ; done'
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TIMEOUT_RETURN=$?
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if [ ${TIMEOUT_RETURN} -eq 124 ] && [ -z "${NO_AP}" ] ; then
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logger -t posbox_connect_to_wifi "Failed to connect, forcing Posbox AP"
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sudo /home/pi/odoo/addons/point_of_sale/tools/posbox/configuration/wireless_ap.sh "force" &
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else
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if [ ${TIMEOUT_RETURN} -ne 124 ] ; then
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rm -f "${LOST_WIFI_FILE}"
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fi
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if [ ! -f "${LOST_WIFI_FILE}" ] ; then
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logger -t posbox_connect_to_wifi "Restarting odoo"
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sudo service odoo restart
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fi
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if [ ${WIFI_WAS_LOST} -eq 0 ] ; then
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touch "${LOST_WIFI_FILE}"
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fi
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logger -t posbox_connect_to_wifi "Starting wifi keep alive script"
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/home/pi/odoo/addons/point_of_sale/tools/posbox/configuration/keep_wifi_alive.sh &
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fi
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}
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connect "${1}" "${2}" "${3}" "${4}" &
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