changes for devuan

- To simplify further additions to PLAT or OSCN, use
the case command for checking

- Treat Devuan as Debian

- Add /sbin:/usr/sbin to PATH before calling ifconfig

- Ensure net-tools is installed so we have ifconfig

auto_install/install.sh

@@ -61,14 +61,14 @@ dhcpcdFile=/etc/dhcpcd.conf
 # Next see if we are on a tested and supported OS
 function noOS_Support() {
     whiptail --msgbox --backtitle "INVALID OS DETECTED" --title "Invalid OS" "We have not been able to detect a supported OS.
-Currently this installer supports Raspbian jessie, Ubuntu 14.04 (trusty), and Ubuntu 16.04 (xenial).
+Currently this installer supports Raspbian (or Devuan) jessie, Ubuntu 14.04 (trusty), and Ubuntu 16.04 (xenial).
 If you think you received this message in error, you can post an issue on the GitHub at https://github.com/pivpn/pivpn/issues." ${r} ${c}
     exit 1
 }
 
 function maybeOS_Support() {
     if (whiptail --backtitle "Not Supported OS" --title "Not Supported OS" --yesno "You are on an OS that we have not tested but MAY work.
-Currently this installer supports Raspbian jessie, Ubuntu 14.04 (trusty), and Ubuntu 16.04 (xenial).
+Currently this installer supports Raspbian (or Devuan) jessie, Ubuntu 14.04 (trusty), and Ubuntu 16.04 (xenial).
 Would you like to continue anyway?" ${r} ${c}) then
         echo "::: Did not detect perfectly supported OS but,"
         echo "::: Continuing installation at user's own risk..."
@@ -85,15 +85,22 @@ distro_check() {
       PLAT=$(lsb_release -si)
       OSCN=$(lsb_release -sc) # We want this to be trusty xenial or jessie
 
-      if [[ $PLAT == "Ubuntu" || $PLAT == "Raspbian" || $PLAT == "Debian" ]]; then
-          if [[ $OSCN != "trusty" && $OSCN != "xenial" && $OSCN != "jessie" ]]; then
+      case ${PLAT} in
+          Ubuntu|Raspbian|Debian|Devuan)
+          case ${OSCN} in
+              trusty|xenial|jessie)
+                  ;;
+              *)
                   maybeOS_Support
-          fi
-      else
+                  ;;
+          esac
+          ;;
+      *)
           noOS_Support
-      fi
+          ;;
+      esac
   # else get info from os-release
-  elif grep -q debian /etc/os-release; then
+  elif grep -q -e debian -e devuan /etc/os-release; then
       if grep -q jessie /etc/os-release; then
           PLAT="Raspbian"
           OSCN="jessie"
@@ -355,6 +362,7 @@ setStaticIPv4() {
 
 setNetwork() {
     # Sets the Network IP and Mask correctly
+    export PATH=${PATH}:/sbin:/usr/sbin
     LOCALMASK=$(ifconfig "${pivpnInterface}" | awk '/Mask:/{ print $4;} ' | cut -c6-)
     LOCALIP=$(ifconfig "${pivpnInterface}" | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*')
     IFS=. read -r i1 i2 i3 i4 <<< "$LOCALIP"
@@ -420,15 +428,19 @@ update_package_cache() {
   timestampAsDate=$(date -d @"${timestamp}" "+%b %e")
   today=$(date "+%b %e")
 
-  if [[ ${PLAT} == "Ubuntu" || ${PLAT} == "Debian" ]]; then
-    if [[ ${OSCN} == "trusty" || ${OSCN} == "jessie" || ${OSCN} == "wheezy" ]]; then
+  case ${PLAT} in
+    Ubuntu|Debian|Devuan)
+      case ${OSCN} in
+        trusty|jessie|wheezy)
           wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg| $SUDO apt-key add -
           echo "deb http://swupdate.openvpn.net/apt $OSCN main" | $SUDO tee /etc/apt/sources.list.d/swupdate.openvpn.net.list > /dev/null
           echo -n "::: Adding OpenVPN repo for $PLAT $OSCN ..."
           $SUDO apt-get -qq update & spinner $!
           echo " done!"
-    fi
-  fi
+          ;;
+      esac
+      ;;
+  esac
 
   if [ ! "${today}" == "${timestampAsDate}" ]; then
     #update package lists
@@ -489,11 +501,14 @@ stopServices() {
     # Stop openvpn
     $SUDO echo ":::"
     $SUDO echo -n "::: Stopping OpenVPN service..."
-    if [[ $PLAT == "Ubuntu" || $PLAT == "Debian" ]]; then
+    case ${PLAT} in
+        Ubuntu|Debian|Devuan)
             $SUDO service openvpn stop || true
-    else
+            ;;
+        *)
             $SUDO systemctl stop openvpn.service || true
-    fi
+            ;;
+    esac
     $SUDO echo " done."
 }
 
@@ -509,15 +524,19 @@ checkForDependencies() {
     timestampAsDate=$(date -d @"$timestamp" "+%b %e")
     today=$(date "+%b %e")
 
-    if [[ $PLAT == "Ubuntu" || $PLAT == "Debian" ]]; then
-        if [[ $OSCN == "trusty" || $OSCN == "jessie" || $OSCN == "wheezy" ]]; then
+    case ${PLAT} in
+        Ubuntu|Debian|Devuan)
+            case ${OSCN} in
+                trusty|jessie|wheezy)
                     wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg| $SUDO apt-key add -
                     echo "deb http://swupdate.openvpn.net/apt $OSCN main" | $SUDO tee /etc/apt/sources.list.d/swupdate.openvpn.net.list > /dev/null
                     echo -n "::: Adding OpenVPN repo for $PLAT $OSCN ..."
                     $SUDO apt-get -qq update & spinner $!
                     echo " done!"
-        fi
-    fi
+                    ;;
+            esac
+            ;;
+    esac
 
     if [ ! "$today" == "$timestampAsDate" ]; then
         #update package lists
@@ -541,7 +560,7 @@ checkForDependencies() {
     echo ":::"
     echo "::: Checking dependencies:"
 
-    dependencies=( openvpn git dhcpcd5 tar wget grep iptables-persistent dnsutils expect whiptail )
+    dependencies=( openvpn git dhcpcd5 tar wget grep iptables-persistent dnsutils expect whiptail net-tools)
     for i in "${dependencies[@]}"; do
         echo -n ":::    Checking for $i..."
         if [ "$(dpkg-query -W -f='${Status}' "$i" 2>/dev/null | grep -c "ok installed")" -eq 0 ]; then
@@ -938,11 +957,14 @@ confNetwork() {
     if [[ $noUFW -eq 1 ]]; then
         echo 1 > /tmp/noUFW
         $SUDO iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o "$IPv4dev" -j MASQUERADE
-        if [[ $PLAT == "Ubuntu" || $PLAT == "Debian" ]]; then
+        case ${PLAT} in
+            Ubuntu|Debian|Devuan)
                 $SUDO iptables-save | $SUDO tee /etc/iptables/rules.v4 > /dev/null
-        else
+                ;;
+            *)
                 $SUDO netfilter-persistent save
-        fi
+                ;;
+        esac
     else
         echo 0 > /tmp/noUFW
     fi
@@ -1293,12 +1315,15 @@ main() {
 
     echo "::: Restarting services..."
     # Start services
-    if [[ $PLAT == "Ubuntu" || $PLAT == "Debian" ]]; then
+    case ${PLAT} in
+        Ubuntu|Debian|Devuan)
             $SUDO service openvpn start
-    else
+            ;;
+        *)
             $SUDO systemctl enable openvpn.service
             $SUDO systemctl start openvpn.service
-    fi
+            ;;
+    esac
 
     echo "::: done."