Merge pull request #523 from Taikuh/bridge-mode

Bridged AP Mode

README.md

@@ -16,6 +16,7 @@ We hope you enjoy using RaspAP as much as we do creating it. Tell us how you use
 
  - [Prerequisites](#prerequisites)
  - [Quick installer](#quick-installer)
+ - [Bridged AP](#bridged-ap)
  - [Simultaneous AP and Wifi client](#simultaneous-ap-and-wifi-client)
  - [Support us](#support-us)
  - [Manual installation](#manual-installation)
@@ -60,6 +61,11 @@ configured as an access point as follows:
 
 **Note:** As the name suggests, the Quick Installer is a great way to quickly setup a new AP. However, it does not automagically detect the unique configuration of your RPi. Best results are obtained by connecting an RPi to ethernet (`eth0`) or as a WiFi client, also known as managed mode, with `wlan0`. For the latter, refer to [this FAQ](https://github.com/billz/raspap-webgui/wiki/FAQs#how-do-i-prepare-the-sd-card-to-connect-to-wifi-in-headless-mode). Please [read this](https://github.com/billz/raspap-webgui/wiki/Reporting-issues) before reporting an issue.
 
+## Bridged AP
+By default RaspAP configures a routed AP for your clients to connect to. A bridged AP configuration is also possible. Slide the **Bridged AP mode** toggle under the **Advanced** tab of **Configure hotspot**, then save and restart the hotspot.
+
+**Note:** In bridged mode, all routing capabilities are handled by your upstream router. Because your router assigns IP addresses to your RPi's hotspot and its clients, you might not be able to reach the RaspAP web interface from the default `10.3.141.1` address. Instead use your RPi's hostname followed by `.local` to access the RaspAP web interface. With Raspbian default settings, this should look like `raspberrypi.local`.
+
 ## Simultaneous AP and Wifi client
 RaspAP lets you easily create an AP with a Wifi client configuration. With your RPi configured in managed mode, enable the AP from the **Advanced** tab of **Configure hotspot** by sliding the **Wifi client AP mode** toggle. Save settings and start the hotspot. The managed mode AP is functional without restart.
 

config/dhcpcd.conf

@@ -10,6 +10,11 @@ require dhcp_server_identifier
 slaac private
 nohook lookup-hostname
 
+#denyinterfaces eth0 wlan0 #BRIDGED
+
+# RaspAP br0 configuration
+interface br0
+
 # RaspAP wlan0 configuration
 interface wlan0
 static ip_address=10.3.141.1/24

config/hostapd.conf

@@ -20,3 +20,5 @@ country_code=
 ## RaspAP wireless client AP mode
 #interface=uap0
 
+## RaspAP bridge AP mode (disabled by default)
+#bridge=br0

config/raspap-br0-member-eth0.network

@@ -0,0 +1,5 @@
+[Match]
+Name=eth0
+
+[Network]
+Bridge=br0

config/raspap-bridge-br0.netdev

@@ -0,0 +1,3 @@
+[NetDev]
+Name=br0
+Kind=bridge

includes/hostapd.php

@@ -31,7 +31,9 @@ function DisplayHostAPDConfig()
             SaveHostAPDConfig($arrSecurity, $arrEncType, $arr80211Standard, $interfaces, $status);
         } elseif (isset($_POST['StartHotspot']) || isset($_POST['RestartHotspot'])) {
             $status->addMessage('Attempting to start hotspot', 'info');
-            if ($arrHostapdConf['WifiAPEnable'] == 1) {
+            if ($arrHostapdConf['BridgedEnable'] == 1) {
+                exec('sudo /etc/raspap/hostapd/servicestart.sh --interface br0 --seconds 3', $return);
+            } elseif ($arrHostapdConf['WifiAPEnable'] == 1) {
                 exec('sudo /etc/raspap/hostapd/servicestart.sh --interface uap0 --seconds 3', $return);
             } else {
                 exec('sudo /etc/raspap/hostapd/servicestart.sh --seconds 3', $return);
@@ -108,8 +110,21 @@ function SaveHostAPDConfig($wpa_array, $enc_types, $modes, $interfaces, $status)
 
     $good_input = true;
   
+    // Check for Bridged AP mode checkbox
+    $bridgedEnable = 0;
+    if ($arrHostapdConf['BridgedEnable'] == 0) {
+        if (isset($_POST['bridgedEnable'])) {
+            $bridgedEnable = 1;
+        }
+    } else {
+        if (isset($_POST['bridgedEnable'])) {
+            $bridgedEnable = 1;
+        }
+    }
+
     // Check for WiFi client AP mode checkbox
     $wifiAPEnable = 0;
+    if ($bridgedEnable == 0) {  // enable client mode actions when not bridged
         if ($arrHostapdConf['WifiAPEnable'] == 0) {
             if (isset($_POST['wifiAPEnable'])) {
                 $wifiAPEnable = 1;
@@ -119,6 +134,7 @@ function SaveHostAPDConfig($wpa_array, $enc_types, $modes, $interfaces, $status)
                 $wifiAPEnable = 1;
             }
         }
+    }
 
     // Check for Logfile output checkbox
     $logEnable = 0;
@@ -137,9 +153,13 @@ function SaveHostAPDConfig($wpa_array, $enc_types, $modes, $interfaces, $status)
             exec('sudo /etc/raspap/hostapd/disablelog.sh');
         }
     }
+
     $cfg = [];
     $cfg['LogEnable'] = $logEnable;
-    $cfg['WifiAPEnable'] = $wifiAPEnable;
+    // Save previous Client mode status when Bridged
+    $cfg['WifiAPEnable'] = ($bridgedEnable == 1 ?
+        $arrHostapdConf['WifiAPEnable'] : $wifiAPEnable);
+    $cfg['BridgedEnable'] = $bridgedEnable;
     $cfg['WifiManaged'] = RASPI_WIFI_CLIENT_INTERFACE;
     write_php_ini($cfg, '/etc/raspap/hostapd.ini');
 
@@ -226,6 +246,9 @@ function SaveHostAPDConfig($wpa_array, $enc_types, $modes, $interfaces, $status)
         }
         if ($wifiAPEnable == 1) {
             $config.= 'interface=uap0'.PHP_EOL;
+        } elseif ($bridgedEnable == 1) {
+            $config.='interface='.RASPI_WIFI_CLIENT_INTERFACE.PHP_EOL;
+            $config.= 'bridge=br0'.PHP_EOL;
         } else {
             $config.= 'interface='.$_POST['interface'].PHP_EOL;
         }
@@ -288,7 +311,10 @@ function SaveHostAPDConfig($wpa_array, $enc_types, $modes, $interfaces, $status)
         $config[] = 'slaac private';
         $config[] = 'nohook lookup-hostname';
 
-        if ($wifiAPEnable == 1) {
+        if ($bridgedEnable == 1) {
+            $config[] = 'denyinterfaces eth0 wlan0';
+            $config[] = 'interface br0';
+        } elseif ($wifiAPEnable == 1) {
             // Enable uap0 configuration in dhcpcd for Wifi client AP mode
             $intConfig = parse_ini_file(RASPI_CONFIG_NETWORKING.'/uap0.ini', false, INI_SCANNER_RAW);
             $ip_address = ($intConfig['ip_address'] == '') ? '192.168.50.1/24' : $intConfig['ip_address'];

includes/openvpn.php

@@ -21,12 +21,14 @@ function DisplayOpenVPNConfig()
         } elseif (isset($_POST['StartOpenVPN'])) {
             $status->addMessage('Attempting to start OpenVPN', 'info');
             exec('sudo /bin/systemctl start openvpn-client@client', $return);
+            exec('sudo /bin/systemctl enable openvpn-client@client', $return);
             foreach ($return as $line) {
                 $status->addMessage($line, 'info');
             }
         } elseif (isset($_POST['StopOpenVPN'])) {
             $status->addMessage('Attempting to stop OpenVPN', 'info');
             exec('sudo /bin/systemctl stop openvpn-client@client', $return);
+            exec('sudo /bin/systemctl disable openvpn-client@client', $return);
             foreach ($return as $line) {
                 $status->addMessage($line, 'info');
             }

index.php

@@ -55,6 +55,11 @@ if ($_COOKIE['sidebarToggled'] == 'true' ) {
     $toggleState = "toggled";
 }
 
+// Get Bridged AP mode status
+$arrHostapdConf = parse_ini_file('/etc/raspap/hostapd.ini');
+// defaults to false
+$bridgedEnabled = $arrHostapdConf['BridgedEnable'];
+
 ?><!DOCTYPE html>
 <html lang="en">
   <head>
@@ -124,7 +129,7 @@ if ($_COOKIE['sidebarToggled'] == 'true' ) {
         <li class="nav-item">
           <a class="nav-link" href="index.php?page=wlan0_info"><i class="fas fa-tachometer-alt fa-fw mr-2"></i><span class="nav-label"><?php echo _("Dashboard"); ?></span></a>
         </li>
-        <?php if (RASPI_WIFICLIENT_ENABLED) : ?>
+        <?php if (RASPI_WIFICLIENT_ENABLED && !$bridgedEnabled) : ?>
         <li class="nav-item">
           <a class="nav-link" href="index.php?page=wpa_conf"><i class="fas fa-wifi fa-fw mr-2"></i><span class="nav-label"><?php echo _("WiFi client"); ?></span></a>
         </li>
@@ -139,7 +144,7 @@ if ($_COOKIE['sidebarToggled'] == 'true' ) {
            <a class="nav-link" href="index.php?page=network_conf"><i class="fas fa-network-wired fa-fw mr-2"></i><span class="nav-label"><?php echo _("Networking"); ?></a>
         </li> 
           <?php endif; ?>
-          <?php if (RASPI_DHCP_ENABLED) : ?>
+          <?php if (RASPI_DHCP_ENABLED && !$bridgedEnabled) : ?>
         <li class="nav-item">
           <a class="nav-link" href="index.php?page=dhcpd_conf"><i class="fas fa-exchange-alt fa-fw mr-2"></i><span class="nav-label"><?php echo _("DHCP Server"); ?></a>
         </li>

installers/common.sh

@@ -171,6 +171,7 @@ function download_latest_files() {
 
     install_log "Cloning latest files from github"
     git clone --branch $branch --depth 1 $git_source_url /tmp/raspap-webgui || install_error "Unable to download files from github"
+
     sudo mv /tmp/raspap-webgui $webroot_dir || install_error "Unable to move raspap-webgui to web root"
 }
 
@@ -210,6 +211,14 @@ function check_for_old_configs() {
         sudo cp /etc/rc.local "$raspap_dir/backups/rc.local.`date +%F-%R`"
         sudo ln -sf "$raspap_dir/backups/rc.local.`date +%F-%R`" "$raspap_dir/backups/rc.local"
     fi
+
+    for file in /etc/systemd/network/raspap-*.net*; do
+        if [-f "${file}" ]; then
+            filename = $(basename $file)
+            sudo cp "$file" "${raspap_dir}/backups/${filename}.`date +%F-%R`"
+            sudo ln -sf "${raspap_dir}/backups/${filename}.`date +%F-%R`" "${raspap_dir}/backups/${filename}"
+        fi
+    done
 }
 
 # Move configuration file to the correct location
@@ -236,6 +245,11 @@ function default_configuration() {
 
     [ -d /etc/dnsmasq.d ] || sudo mkdir /etc/dnsmasq.d
 
+    sudo systemctl stop systemd-networkd
+    sudo systemctl disable systemd-networkd
+    sudo cp $webroot_dir/config/raspap-bridge-br0.netdev /etc/systemd/network/raspap-bridge-br0.netdev || install_error "Unable to move br0 netdev file"
+    sudo cp $webroot_dir/config/raspap-br0-member-eth0.network /etc/systemd/network/raspap-br0-member-eth0.network || install_error "Unable to move br0 member file"
+
     if [ ! -f "$webroot_dir/includes/config.php" ]; then
         sudo cp "$webroot_dir/config/config.php" "$webroot_dir/includes/config.php"
     fi
@@ -311,7 +325,9 @@ function patch_system_files() {
         "/bin/systemctl start dnsmasq.service"
         "/bin/systemctl stop dnsmasq.service"
         "/bin/systemctl start openvpn-client@client"
+        "/bin/systemctl enable openvpn-client@client"
         "/bin/systemctl stop openvpn-client@client"
+        "/bin/systemctl disable openvpn-client@client"
         "/bin/cp /tmp/ovpnclient.ovpn /etc/openvpn/client/client.conf"
         "/bin/cp /tmp/authdata /etc/openvpn/client/login.conf"
         "/bin/cp /tmp/dnsmasqdata /etc/dnsmasq.conf"

installers/configauth.sh

@@ -34,6 +34,7 @@ lines=(
 
 for line in "${lines[@]}"; do
     if grep "$line" /etc/rc.local > /dev/null; then
+        echo "$line: Line already added"
     else
         sudo sed -i "s/^exit 0$/$line\nexit 0/" /etc/rc.local
         echo "Adding rule: $line"

installers/servicestart.sh

@@ -6,6 +6,8 @@ PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
 NAME=raspap
 DESC="Service control for RaspAP"
 CONFIGFILE="/etc/raspap/hostapd.ini"
+DAEMONPATH="/lib/systemd/system/raspap.service"
+OPENVPNENABLED=$(pidof openvpn | wc -l)
 
 positional=()
 while [[ $# -gt 0 ]]
@@ -28,16 +30,44 @@ done
 set -- "${positional[@]}"
 
 echo "Stopping network services..."
+systemctl stop openvpn-client@client
+systemctl stop systemd-networkd
 systemctl stop hostapd.service
 systemctl stop dnsmasq.service
 systemctl stop dhcpcd.service
 
+if [ -f "$DAEMONPATH" ]; then
+    echo "Changing RaspAP Daemon --interface to $interface"
+    sed -i "s/\(--interface \)[[:alnum:]]*/\1$interface/" "$DAEMONPATH"
+fi
+
 if [ -r "$CONFIGFILE" ]; then
     declare -A config
     while IFS=" = " read -r key value; do
         config["$key"]="$value"
     done < "$CONFIGFILE"
 
+    if [ "${config[BridgedEnable]}" = 1 ]; then
+        if [ "${interface}" = "br0" ]; then
+            echo "Restarting eth0 interface..."
+            ip link set down eth0
+            ip link set up eth0
+
+            echo "Removing uap0 interface..."
+            iw dev uap0 del
+
+            echo "Enabling systemd-networkd"
+            systemctl start systemd-networkd
+            systemctl enable systemd-networkd
+        fi
+    else
+        echo "Disabling systemd-networkd"
+        systemctl disable systemd-networkd
+
+        echo "Removing br0 interface..."
+        ip link set down br0
+        ip link del dev br0
+
         if [ "${config[WifiAPEnable]}" = 1 ]; then
             if [ "${interface}" = "uap0" ]; then
                 echo "Removing uap0 interface..."
@@ -49,6 +79,7 @@ if [ -r "$CONFIGFILE" ]; then
                 ifconfig uap0 up
             fi
         fi
+    fi
 fi
 
 # Start services, mitigating race conditions
@@ -61,5 +92,9 @@ sleep "${seconds}"
 
 systemctl start dnsmasq.service
 
+if [ $OPENVPNENABLED -eq 1 ]; then
+    systemctl start openvpn-client@client
+fi
+
 echo "RaspAP service start DONE"
 

installers/toggle-bridged-routed.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+function do_routed_mode() {
+  sudo systemctl disable systemd-networkd
+
+  sudo sed -i "s/^.*#BRIDGED$/#&/" /etc/dhcpcd.conf
+  sudo sed -i "s/^bridge/#&/" /etc/hostapd/hostapd.conf
+
+  sudo ip link set down br0
+  sudo ip link del dev br0
+}
+
+function do_bridged_mode() {
+  sudo sed -i "s/^#\(.*#BRIDGED\)$/\1/" /etc/dhcpcd.conf
+  sudo sed -i "s/^#\(bridge\)/\1/" /etc/hostapd/hostapd.conf
+
+  sudo ip link set down eth0
+  sudo ip link set up eth0
+
+  sudo systemctl start systemd-networkd
+  sudo systemctl enable systemd-networkd
+}
+
+sudo systemctl stop systemd-networkd
+sudo systemctl stop hostapd
+sudo systemctl stop dhcpcd
+sudo systemctl stop dnsmasq
+
+if [ "$1" = "force-routed" ]
+then do_routed_mode
+elif [ "$1" = "force-bridged" ]
+then do_bridged_mode
+elif ip addr show br0 | grep 'inet ' > /dev/null
+then do_routed_mode
+elif ! ip addr show br0 | grep 'inet ' > /dev/null
+then do_bridged_mode
+fi
+
+sudo systemctl start hostapd
+sudo systemctl start dhcpcd
+sudo systemctl start dnsmasq

locale/en_US/LC_MESSAGES/messages.po

@@ -429,6 +429,9 @@ msgstr "Logfile output"
 msgid "WiFi client AP mode"
 msgstr "WiFi client AP mode"
 
+msgid "Bridged AP mode"
+msgstr "Bridged AP mode"
+
 msgid "Hide SSID in broadcast"
 msgstr "Hide SSID in broadcast"
 

templates/hostapd.php

@@ -125,11 +125,20 @@
           </div>
           <div class="tab-pane fade" id="advanced">
           <h4 class="mt-3"><?php echo _("Advanced settings"); ?></h4>
+            <div class="row">
+              <div class="col-md-6 mb-2">
+                <div class="custom-control custom-switch">
+                  <?php $checked = $arrHostapdConf['BridgedEnable'] == 1 ? 'checked="checked"' : '' ?>
+                  <input class="custom-control-input" id="chxbridgedenable" name="bridgedEnable" type="checkbox" value="1" <?php echo $checked ?> />
+                  <label class="custom-control-label" for="chxbridgedenable"><?php echo _("Bridged AP mode"); ?></label>
+                </div>
+              </div>
+            </div>
             <div class="row">
               <div class="col-md-6 mb-2">
                 <div class="custom-control custom-switch">
                   <?php $checked = $arrHostapdConf['WifiAPEnable'] == 1 ? 'checked="checked"' : '' ?>
-                  <?php $disabled = $managedModeEnabled == false && $arrHostapdConf['WifiAPEnable'] != 1 ? 'disabled="disabled"' : '' ?>
+                  <?php $disabled = $managedModeEnabled == false && $arrHostapdConf['WifiAPEnable'] != 1 || $arrHostapdConf['BridgedEnable'] == 1 ? 'disabled="disabled"' : '' ?>
                   <input class="custom-control-input" id="chxwificlientap" name="wifiAPEnable" type="checkbox" value="1" <?php echo $checked ?> <?php echo $disabled ?> />
                   <label class="custom-control-label" for="chxwificlientap"><?php echo _("WiFi client AP mode"); ?></label>
                 </div>

templates/networking.php

@@ -12,10 +12,18 @@
         <div id="msgNetworking"></div>
         <ul class="nav nav-tabs">
           <li role="presentation" class="nav-item"><a class="nav-link active" href="#summary" aria-controls="summary" role="tab" data-toggle="tab"><?php echo _("Summary"); ?></a></li>
+          <?php
+            // Get Bridged AP mode status
+            $arrHostapdConf = parse_ini_file('/etc/raspap/hostapd.ini');
+            // defaults to false
+            $bridgedEnabled = $arrHostapdConf['BridgedEnable'];
+          ?>
+          <?php if (!$bridgedEnabled): // no interface details when bridged ?>
           <?php foreach ($interfaces as $if): ?>
           <?php $if_quoted = htmlspecialchars($if, ENT_QUOTES) ?>
           <li role="presentation" class="nav-item"><a class="nav-link" href="#<?php echo $if_quoted ?>" aria-controls="<?php echo $if_quoted ?>" role="tab" data-toggle="tab"><?php echo $if_quoted ?></a></li>
           <?php endforeach ?>
+          <?php endif ?>
         </ul>
         <div class="tab-content">