Configurable wifi interface

src/freedombone

@@ -368,6 +368,7 @@ EXTERNAL_IP_SERVICES=( \
   'http://httpbin.org/ip')
 
 WIFI_CHANNEL=2
+WIFI_INTERFACE=wlan0
 
 # cjdns settings
 ENABLE_CJDNS="no"
@@ -750,6 +751,9 @@ function read_configuration {
   fi
 
   if [ -f $CONFIGURATION_FILE ]; then
+      if grep -q "WIFI_INTERFACE" $CONFIGURATION_FILE; then
+          WIFI_INTERFACE=$(grep "WIFI_INTERFACE" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
+      fi
       if grep -q "IRC_PORT" $CONFIGURATION_FILE; then
           IRC_PORT=$(grep "IRC_PORT" $CONFIGURATION_FILE | awk -F '=' '{print $2}')
       fi
@@ -1161,8 +1165,8 @@ function install_not_on_BBB {
   echo '#iface eth1 inet dhcp' >> /etc/network/interfaces
   echo '' >> /etc/network/interfaces
   echo '# WiFi Example' >> /etc/network/interfaces
-  echo '#auto wlan0' >> /etc/network/interfaces
-  echo '#iface wlan0 inet dhcp' >> /etc/network/interfaces
+  echo "#auto $WIFI_INTERFACE" >> /etc/network/interfaces
+  echo "#iface $WIFI_INTERFACE inet dhcp" >> /etc/network/interfaces
   echo '#    wpa-ssid "essid"' >> /etc/network/interfaces
   echo '#    wpa-psk  "password"' >> /etc/network/interfaces
   echo '' >> /etc/network/interfaces
@@ -1728,7 +1732,7 @@ function mesh_babel {
   echo '    fi' >> $babel_script
   echo 'fi' >> $babel_script
   echo '' >> $babel_script
-  echo 'IFACE=wlan0' >> $babel_script
+  echo "IFACE=$WIFI_INTERFACE" >> $babel_script
   echo 'if grep -q "wlan1" /proc/net/dev; then' >> $babel_script
   echo '    IFACE=wlan1' >> $babel_script
   echo 'fi' >> $babel_script
@@ -1821,7 +1825,7 @@ function mesh_batman_bridge {
   echo '' >> $batman_script
   echo '# Ethernet bridge definition (bridged to bat0)' >> $batman_script
   echo 'BRIDGE=br-mesh' >> $batman_script
-  echo 'IFACE=wlan0' >> $batman_script
+  echo "IFACE=$WIFI_INTERFACE" >> $batman_script
   echo 'EIFACE=eth0' >> $batman_script
   echo '' >> $batman_script
   echo 'if grep -q "wlan1" /proc/net/dev; then' >> $batman_script
@@ -5824,8 +5828,8 @@ function configure_firewall_for_batman {
   fi
   # DHCP
   iptables -A INPUT -i eth0 -p udp --dport 547 -j ACCEPT
-  iptables -A INPUT -i wlan0 -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-  ip6tables -A INPUT -i wlan0 -p udp --dport 5353 -j ACCEPT
+  iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
+  ip6tables -A INPUT -i $WIFI_INTERFACE -p udp --dport 5353 -j ACCEPT
 
   save_firewall_settings
   echo 'configure_firewall_for_batman' >> $COMPLETION_FILE
@@ -5838,8 +5842,8 @@ function configure_firewall_for_babel {
   if [[ $ENABLE_BABEL != "yes" ]]; then
       return
   fi
-  iptables -A INPUT -i wlan0 -p udp --dport $BABEL_PORT -j ACCEPT
-  iptables -A INPUT -i wlan0 -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
+  iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $BABEL_PORT -j ACCEPT
+  iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
   save_firewall_settings
   echo 'configure_firewall_for_babel' >> $COMPLETION_FILE
 }