From c7a3356e6bfb67b1b617eaeddd5983ddae901759 Mon Sep 17 00:00:00 2001
From: jim-p <jimp@pfsense.org>
Date: Thu, 26 Dec 2013 15:25:46 -0500
Subject: Add a setting to allow the user to specify the clog file size so more
 (or less) entries may be kept in the raw logs. Retain previous default size
 values if the user has not specified a preferred size. Files can only be
 resized when initialized, so provide a "Reset All Logs" button as well to
 force clear all logs and set them up at the new size.

---
 usr/local/www/diag_logs_settings.php | 31 ++++++++++++++++++++++++++++++-
 usr/local/www/guiconfig.inc          | 26 ++++++++++++++++++++++----
 2 files changed, 52 insertions(+), 5 deletions(-)

(limited to 'usr/local/www')

diff --git a/usr/local/www/diag_logs_settings.php b/usr/local/www/diag_logs_settings.php
index b1eef64..b7ba070 100755
--- a/usr/local/www/diag_logs_settings.php
+++ b/usr/local/www/diag_logs_settings.php
@@ -71,6 +71,7 @@ $pconfig['loglighttpd'] = !isset($config['syslog']['nologlighttpd']);
 $pconfig['rawfilter'] = isset($config['syslog']['rawfilter']);
 $pconfig['filterdescriptions'] = $config['syslog']['filterdescriptions'];
 $pconfig['disablelocallogging'] = isset($config['syslog']['disablelocallogging']);
+$pconfig['logfilesize'] = $config['syslog']['logfilesize'];
 
 if (!$pconfig['nentries'])
 	$pconfig['nentries'] = 50;
@@ -82,7 +83,9 @@ function is_valid_syslog_server($target) {
 		|| is_hostnamewithport($target));
 }
 
-if ($_POST) {
+if ($_POST['resetlogs'] == gettext("Reset Log Files")) {
+	clear_all_log_files();
+} elseif ($_POST) {
 
 	unset($input_errors);
 	$pconfig = $_POST;
@@ -102,9 +105,15 @@ if ($_POST) {
 		$input_errors[] = gettext("Number of log entries to show must be between 5 and 2000.");
 	}
 
+	if (isset($_POST['logfilesize']) && (strlen($_POST['logfilesize']) > 0)) {
+		if (!is_numeric($_POST['logfilesize']) || ($_POST['logfilesize'] < 5120)) {
+			$input_errors[] = gettext("Log file size must be a positive integer greater than 5120.");
+		}
+	}
 	if (!$input_errors) {
 		$config['syslog']['reverse'] = $_POST['reverse'] ? true : false;
 		$config['syslog']['nentries'] = (int)$_POST['nentries'];
+		$config['syslog']['logfilesize'] = (int)$_POST['logfilesize'];
 		$config['syslog']['remoteserver'] = $_POST['remoteserver'];
 		$config['syslog']['remoteserver2'] = $_POST['remoteserver2'];
 		$config['syslog']['remoteserver3'] = $_POST['remoteserver3'];
@@ -276,6 +285,18 @@ function check_everything() {
 			<?=gettext("Hint: This is only the number of log entries displayed in the GUI. It does not affect how many entries are contained in the actual log files.") ?></td>
 		</tr>
 		<tr>
+			<td width="22%" valign="top" class="vtable">Log File Size</td>
+			<td width="78%" class="vtable">
+			<input name="logfilesize" id="logfilesize" type="text" class="formfld unknown" size="8" value="<?=htmlspecialchars($pconfig['logfilesize']);?>" /><br/>
+			<?=gettext("Logs are held in constant-size circular log files. This field controls how large each log file is, and thus how many entries may exist inside the log By default this is approximately 500KB per log file, and there are nearly 20 such log files.") ?>
+			<br/><br/>
+			<?=gettext("NOTE: Log sizes are changed the next time a log file is cleared or deleted. To immediately increase the size of the log files, you must clear all logs using the \"Reset Log Files\" option farther down this page. "); ?>
+			<?=gettext("Be aware that increasing this value increases every log file size, so disk usage will increase significantly."); ?>
+			<?=gettext("Disk space currently used by log files: ") ?><?= exec("/usr/bin/du -sh /var/log | /usr/bin/awk '{print $1;}'"); ?>.
+			<?=gettext("Remaining disk space for log files: ") ?><?= exec("/bin/df -h /var/log | /usr/bin/awk '{print $4;}'"); ?>.
+			</td>
+		</tr>
+		<tr>
 			<td valign="top" class="vtable">Log Firewall Default Blocks</td>
 			<td class="vtable">
 				<input name="logdefaultblock" type="checkbox" id="logdefaultblock" value="yes" <?php if ($pconfig['logdefaultblock']) echo "checked=\"checked\""; ?> />
@@ -324,6 +345,14 @@ function check_everything() {
 			<?php endif; ?>
 		</tr>
 		<tr>
+			<td width="22%" valign="top">Reset Logs</td>
+			<td width="78%">
+				<input name="resetlogs" type="submit" class="formbtn" value="<?=gettext("Reset Log Files"); ?>"  onclick="return confirm('<?=gettext('Do you really want to reset the log files? This will erase all local log data.');?>')" />
+				<br/><br/>
+				<?= gettext("Note: Clears all local log files and reinitializes them as empty logs. This also restarts the DHCP daemon."); ?>
+			</td>
+		</tr>
+		<tr>
 			<td colspan="2" valign="top">&nbsp;</td>
 		</tr>
 		<tr>
diff --git a/usr/local/www/guiconfig.inc b/usr/local/www/guiconfig.inc
index d5a9cf7..1997ac5 100755
--- a/usr/local/www/guiconfig.inc
+++ b/usr/local/www/guiconfig.inc
@@ -543,19 +543,37 @@ function update_changedesc($update) {
 	$changecount++;
 }
 
-function clear_log_file($logfile = "/var/log/system.log") {
+function clear_log_file($logfile = "/var/log/system.log", $restart_syslogd = true) {
 	global $config, $g;
-	exec("/usr/bin/killall syslogd");
+	if ($restart_syslogd)
+		exec("/usr/bin/killall syslogd");
 	if(isset($config['system']['disablesyslogclog'])) {
 		unlink($logfile);
 		touch($logfile);
 	} else {
+		$log_size = isset($config['syslog']['logfilesize']) ? $config['syslog']['logfilesize'] : "511488";
 		if(isset($config['system']['usefifolog']))
-			exec("/usr/sbin/fifolog_create -s 511488 {$logfile}");
+			exec("/usr/sbin/fifolog_create -s {$log_size} {$logfile}");
 		else
-			exec("/usr/sbin/clog -i -s 511488 {$logfile}");
+			exec("/usr/sbin/clog -i -s {$log_size} {$logfile}");
+	}
+	if ($restart_syslogd)
+		system_syslogd_start();
+}
+
+function clear_all_log_files() {
+	global $g;
+	exec("/usr/bin/killall syslogd");
+
+	$log_files = array("system", "filter", "dhcpd", "vpn", "pptps", "poes", "l2tps", "openvpn", "portalauth", "ipsec", "ppp", "relayd", "wireless", "lighttpd", "ntpd", "gateways", "resolver", "routing");
+	foreach ($log_files as $lfile) {
+		clear_log_file("{$g['varlog_path']}/{$lfile}.log", false);
 	}
+
 	system_syslogd_start();
+	killbyname("dhcpd");
+	services_dhcpd_configure();
+	return;
 }
 
 function dump_clog($logfile, $tail, $withorig = true, $grepfor = "", $grepinvert = "") {
-- 
cgit v1.1