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269 lines
9.2 KiB
PHP
269 lines
9.2 KiB
PHP
<?php
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include_once( 'includes/status_messages.php' );
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/**
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*
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* Manage DHCP configuration
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*
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*/
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function DisplayDHCPConfig() {
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$status = new StatusMessages();
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if( isset( $_POST['savedhcpdsettings'] ) ) {
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if (CSRFValidate()) {
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$errors = '';
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define('IFNAMSIZ', 16);
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if (!preg_match('/^[a-zA-Z0-9]+$/', $_POST['interface']) ||
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strlen($_POST['interface']) >= IFNAMSIZ) {
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$errors .= _('Invalid interface name.').'<br />'.PHP_EOL;
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}
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if (!preg_match('/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\z/', $_POST['RangeStart']) &&
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!empty($_POST['RangeStart'])) { // allow ''/null ?
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$errors .= _('Invalid DHCP range start.').'<br />'.PHP_EOL;
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}
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if (!preg_match('/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\z/', $_POST['RangeEnd']) &&
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!empty($_POST['RangeEnd'])) { // allow ''/null ?
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$errors .= _('Invalid DHCP range end.').'<br />'.PHP_EOL;
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}
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if (!ctype_digit($_POST['RangeLeaseTime']) && $_POST['RangeLeaseTimeUnits'] !== 'infinite') {
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$errors .= _('Invalid DHCP lease time, not a number.').'<br />'.PHP_EOL;
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}
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if (!in_array($_POST['RangeLeaseTimeUnits'], array('m', 'h', 'd', 'infinite'))) {
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$errors .= _('Unknown DHCP lease time unit.').'<br />'.PHP_EOL;
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}
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$return = 1;
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if (empty($errors)) {
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$config = 'interface='.$_POST['interface'].PHP_EOL.
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'dhcp-range='.$_POST['RangeStart'].','.$_POST['RangeEnd'].
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',255.255.255.0,';
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if ($_POST['RangeLeaseTimeUnits'] !== 'infinite') {
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$config .= $_POST['RangeLeaseTime'];
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}
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$config .= $_POST['RangeLeaseTimeUnits'];
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exec('echo "'.$config.'" > /tmp/dhcpddata', $temp);
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system('sudo cp /tmp/dhcpddata '.RASPI_DNSMASQ_CONFIG, $return);
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} else {
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$status->addMessage($errors, 'danger');
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}
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if ($return == 0) {
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$status->addMessage('Dnsmasq configuration updated successfully', 'success');
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} else {
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$status->addMessage('Dnsmasq configuration failed to be updated.', 'danger');
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}
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} else {
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error_log('CSRF violation');
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}
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}
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exec( 'pidof dnsmasq | wc -l',$dnsmasq );
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$dnsmasq_state = ($dnsmasq[0] > 0);
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if( isset( $_POST['startdhcpd'] ) ) {
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if (CSRFValidate()) {
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if ($dnsmasq_state) {
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$status->addMessage('dnsmasq already running', 'info');
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} else {
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exec('sudo /etc/init.d/dnsmasq start', $dnsmasq, $return);
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if ($return == 0) {
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$status->addMessage('Successfully started dnsmasq', 'success');
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$dnsmasq_state = true;
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} else {
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$status->addMessage('Failed to start dnsmasq', 'danger');
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}
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}
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} else {
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error_log('CSRF violation');
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}
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} elseif( isset($_POST['stopdhcpd'] ) ) {
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if (CSRFValidate()) {
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if ($dnsmasq_state) {
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exec('sudo /etc/init.d/dnsmasq stop', $dnsmasq, $return);
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if ($return == 0) {
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$status->addMessage('Successfully stopped dnsmasq', 'success');
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$dnsmasq_state = false;
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} else {
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$status->addMessage('Failed to stop dnsmasq', 'danger');
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}
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} else {
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$status->addMessage('dnsmasq already stopped', 'info');
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}
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} else {
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error_log('CSRF violation');
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}
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} else {
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if( $dnsmasq_state ) {
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$status->addMessage('Dnsmasq is running', 'success');
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} else {
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$status->addMessage('Dnsmasq is not running', 'warning');
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}
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}
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exec( 'cat '. RASPI_DNSMASQ_CONFIG, $return );
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$conf = ParseConfig($return);
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$arrRange = explode( ",", $conf['dhcp-range'] );
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$RangeStart = $arrRange[1];
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$RangeEnd = $arrRange[2];
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$RangeMask = $arrRange[3];
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$leaseTime = $arrRange[4];
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$hselected = '';
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$mselected = '';
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$dselected = '';
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$infiniteselected = '';
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preg_match( '/([0-9]*)([a-z])/i', $leaseTime, $arrRangeLeaseTime );
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if ($leaseTime === 'infinite') {
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$infiniteselected = ' selected="selected"';
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} else {
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switch( $arrRangeLeaseTime[2] ) {
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case 'h':
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$hselected = ' selected="selected"';
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break;
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case 'm':
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$mselected = ' selected="selected"';
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break;
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case 'd':
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$dselected = ' selected="selected"';
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break;
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}
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}
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?>
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<div class="row">
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<div class="col-lg-12">
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<div class="panel panel-primary">
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<div class="panel-heading"><i class="fa fa-exchange fa-fw"></i> <?php echo _("Configure DHCP"); ?></div>
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<!-- /.panel-heading -->
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<div class="panel-body">
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<p><?php $status->showMessages(); ?></p>
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<!-- Nav tabs -->
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<ul class="nav nav-tabs">
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<li class="active"><a href="#server-settings" data-toggle="tab"><?php echo _("Server settings"); ?></a>
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</li>
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<li><a href="#client-list" data-toggle="tab"><?php echo _("Client list"); ?></a>
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</li>
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</ul>
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<!-- Tab panes -->
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<div class="tab-content">
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<div class="tab-pane fade in active" id="server-settings">
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<h4>DHCP server settings</h4>
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<form method="POST" action="?page=dhcpd_conf">
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<?php CSRFToken() ?>
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<div class="row">
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<div class="form-group col-md-4">
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<label for="code">Interface</label>
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<select class="form-control" name="interface">
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<?php
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exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces);
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foreach( $interfaces as $inet ) {
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$select = '';
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if( $inet === $conf['interface'] ) {
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$select = ' selected="selected"';
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}
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echo ' <option value="'.htmlspecialchars($inet, ENT_QUOTES).'"'.
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$select.'>'.htmlspecialchars($inet, ENT_QUOTES).'</option>' , PHP_EOL;
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}
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?>
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</select>
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</div>
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</div>
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<div class="row">
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<div class="form-group col-md-4">
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<label for="code"><?php echo _("Starting IP Address"); ?></label>
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<input type="text" class="form-control"name="RangeStart" value="<?php echo htmlspecialchars($RangeStart, ENT_QUOTES); ?>" />
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</div>
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</div>
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<div class="row">
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<div class="form-group col-md-4">
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<label for="code"><?php echo _("Ending IP Address"); ?></label>
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<input type="text" class="form-control" name="RangeEnd" value="<?php echo htmlspecialchars($RangeEnd, ENT_QUOTES); ?>" />
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</div>
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</div>
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<div class="row">
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<div class="form-group col-xs-2 col-sm-2">
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<label for="code"><?php echo _("Lease Time"); ?></label>
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<input type="text" class="form-control" name="RangeLeaseTime" value="<?php echo htmlspecialchars($arrRangeLeaseTime[1], ENT_QUOTES); ?>" />
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</div>
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<div class="col-xs-2 col-sm-2">
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<label for="code"><?php echo _("Interval"); ?></label>
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<select name="RangeLeaseTimeUnits" class="form-control" >
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<option value="m"<?php echo $mselected; ?>><?php echo _("Minute(s)"); ?></option>
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<option value="h"<?php echo $hselected; ?>><?php echo _("Hour(s)"); ?></option>
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<option value="d"<?php echo $dselected; ?>><?php echo _("Day(s)"); ?></option>
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<option value="infinite"<?php echo $infiniteselected; ?>><?php echo _("Infinite"); ?></option>
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</select>
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</div>
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</div>
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<input type="submit" class="btn btn-outline btn-primary" value="<?php echo _("Save settings"); ?>" name="savedhcpdsettings" />
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<?php
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if ( $dnsmasq_state ) {
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echo '<input type="submit" class="btn btn-warning" value="' . _("Stop dnsmasq") . '" name="stopdhcpd" />';
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} else {
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echo'<input type="submit" class="btn btn-success" value="' . _("Start dnsmasq") . '" name="startdhcpd" />';
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}
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?>
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</form>
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</div><!-- /.tab-pane -->
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<div class="tab-pane fade in" id="client-list">
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<h4>Client list</h4>
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<div class="col-lg-12">
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<div class="panel panel-default">
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<div class="panel-heading"><?php echo _("Active DHCP leases"); ?></div>
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<!-- /.panel-heading -->
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<div class="panel-body">
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<div class="table-responsive">
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<table class="table table-hover">
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<thead>
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<tr>
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<th><?php echo _("Expire time"); ?></th>
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<th><?php echo _("MAC Address"); ?></th>
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<th><?php echo _("IP Address"); ?></th>
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<th><?php echo _("Host name"); ?></th>
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<th><?php echo _("Client ID"); ?></th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<?php
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exec( 'cat ' . RASPI_DNSMASQ_LEASES, $leases );
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foreach( $leases as $lease ) {
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$lease_items = explode(' ', $lease);
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foreach( $lease_items as $lease_item ) {
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echo ' <td>'.htmlspecialchars($lease_item, ENT_QUOTES).'</td>'.PHP_EOL;
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}
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echo ' </tr>'.PHP_EOL;
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};
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?>
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</tr>
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</tbody>
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</table>
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</div><!-- /.table-responsive -->
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</div><!-- /.panel-body -->
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</div><!-- /.panel -->
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</div><!-- /.col-lg-6 -->
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</div><!-- /.tab-pane -->
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</div><!-- /.tab-content -->
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</div><!-- ./ Panel body -->
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<div class="panel-footer"> <?php echo _("Information provided by Dnsmasq"); ?></div>
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</div><!-- /.panel-primary -->
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</div><!-- /.col-lg-12 -->
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</div><!-- /.row -->
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<?php
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}
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