local state

scripts/services/Mistborn-wifi.service

@@ -10,14 +10,19 @@ Group=docker
 PermissionsStartOnly=true
 # Shutdown container (if running) when unit is stopped
 EnvironmentFile=/opt/mistborn/.env
-ExecStartPre=/usr/local/bin/docker-compose -f /opt/mistborn/extra/wifi.yml down
 
+ExecStartPre=/usr/local/bin/docker-compose -f /opt/mistborn/extra/wifi.yml down
+ExecStartPre=/opt/mistborn/scripts/services/wifi/init.sh
 ExecStartPre=/usr/local/bin/docker-compose -f /opt/mistborn/extra/wifi.yml build
 # Start container when unit is started
 ExecStart=/usr/local/bin/docker-compose -f /opt/mistborn/extra/wifi.yml up
+
+ExecStartPost=/opt/mistborn/scripts/services/wifi/start.sh
+
 # Stop container when unit is stopped
 ExecStop=/usr/local/bin/docker-compose -f /opt/mistborn/extra/wifi.yml down
 # Post stop
+ExecStopPost=/opt/mistborn/scripts/services/wifi/stop.sh
 
 [Install]
 WantedBy=multi-user.target

scripts/services/wifi/init.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# Colors
+MAGENTA='\e[0;35m'
+RED='\e[0;31m'
+GREEN='\e[0;32m'
+BLUE='\e[0;34m'
+NC='\e[0m'
+
+# Check that the interface exists and its not in use. Returns iface phy
+iface_check (){
+    IFACE="$1"
+    
+    # Check that the requested iface is available
+    if ! [ -e /sys/class/net/"$IFACE" ]
+    then
+        echo -e "${RED}[ERROR]${NC} The interface provided does not exist. Exiting..."
+        exit 1
+    fi
+   
+    # Check that the given interface is not used by the host as the default route
+    if [[ $(ip r | grep default | cut -d " " -f5) == "$IFACE" ]]
+    then
+        echo -e "${BLUE}[INFO]${NC} The selected interface is configured as the default route, if you use it you will lose internet connectivity"
+        exit 1;
+	fi
+
+    # Find the physical interface for the given wireless interface
+    PHY=$(cat /sys/class/net/"$IFACE"/phy80211/name)
+    echo $PHY
+}
+
+hostapd_setup() {
+    ### Check if hostapd is running in the host
+    hostapd_pid=$(pgrep hostapd)
+    if [ ! "$hostapd_pid" == "" ] 
+    then
+       echo -e "${BLUE}[INFO]${NC} hostapd service is already running in the system, make sure you use a different wireless interface..."
+       #kill -9 "$hostapd_pid"
+    fi
+
+    # Unblock wifi and bring the wireless interface up
+    echo -e "${BLUE}[INFO]${NC} Unblocking wifi and setting ${IFACE} up"
+    rfkill unblock wifi
+    ip link set "$IFACE" up
+
+    # Check if a wlan config file exists, else take wlan parameters by default
+    if [ -e "$PATHSCRIPT"/"$CONF_FILE" ]
+    then
+        echo -e "${BLUE}[INFO]${NC} Found WLAN config file"
+	    # Parse the wlan config file
+		IFS="="
+		while read -r name value
+		do
+                    case $name in
+                        ''|\#* ) continue;; # Skip blank lines and lines starting with #
+                        "SSID" )
+                            SSID=${value//\"/}
+                            echo -e "${BLUE}"[INFO]"${NC}" SSID: "${MAGENTA}""$SSID""${NC}";;
+                        "PASSPHRASE" )
+                            PASSPHRASE=${value//\"/};;
+                        "HW_MODE" )
+                            HW_MODE=${value//\"/};;
+                        "CHANNEL" )
+                            CHANNEL=${value//\"/};;
+                        * )
+                            echo Parameter "$name" in "$PATHSCRIPT"/"$CONF_FILE" not recognized
+		    esac
+		done < "$PATHSCRIPT"/"$CONF_FILE"
+    else
+        echo -e "${BLUE}[INFO]${NC} WLAN config file not found. Setting default WLAN parameters"
+        echo -e "${BLUE}"[INFO]"${NC}" SSID: "${MAGENTA}""$SSID""${NC}"
+    fi
+
+}