Snort 2.9.5.5 pkg v3.0.0 update

1 files changed, 670 insertions, 0 deletions

diff --git a/config/snort/snort_stream5_engine.php b/config/snort/snort_stream5_engine.php
new file mode 100644
index 00000000..33fade40
--- /dev/null
+++ b/config/snort/snort_stream5_engine.php
@@ -0,0 +1,670 @@
+<?php
+/*
+ * snort_stream5_engine.php
+ * Copyright (C) 2004 Scott Ullrich
+ * Copyright (C) 2011-2012 Ermal Luci
+ * All rights reserved.
+ *
+ * originially part of m0n0wall (http://m0n0.ch/wall)
+ * Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
+ * All rights reserved.
+ *
+ * modified for the pfsense snort package
+ * Copyright (C) 2009-2010 Robert Zelaya.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+require_once("guiconfig.inc");
+require_once("/usr/local/pkg/snort/snort.inc");
+
+global $g;
+
+$snortdir = SNORTDIR;
+
+/* Retrieve required array index values from QUERY string if available. */
+/* 'id' is the [rule] array index, and 'eng_id' is the index for the    */
+/* stream5_tcp_engine's [item] array.                                   */
+$id = $_GET['id'];
+$eng_id = $_GET['eng_id'];
+
+/* See if values are in our form's POST content */
+if (isset($_POST['id']))
+	$id = $_POST['id'];
+if (isset($_POST['eng_id']))
+	$eng_id = $_POST['eng_id'];
+
+/* If we don't have a [rule] index specified, exit */
+if (is_null($id)) {
+	// Clear and close out any session variable we created
+	session_start();
+	unset($_SESSION['stream5_client_import']);
+	session_write_close();
+ 	header("Location: /snort/snort_interfaces.php");
+	exit;
+}
+
+/* Initialize pointer into requisite section of [config] array */
+if (!is_array($config['installedpackages']['snortglobal']['rule']))
+	$config['installedpackages']['snortglobal']['rule'] = array();
+if (!is_array($config['installedpackages']['snortglobal']['rule'][$id]['stream5_tcp_engine']['item']))
+	$config['installedpackages']['snortglobal']['rule'][$id]['stream5_tcp_engine']['item'] = array();
+$a_nat = &$config['installedpackages']['snortglobal']['rule'][$id]['stream5_tcp_engine']['item'];
+
+$pconfig = array();
+
+// If this is a new entry, intialize it with default values
+if (empty($a_nat[$eng_id])) {
+	$def = array(	"name" => "engine_{$eng_id}", "bind_to" => "", "policy" => "bsd", "timeout" => 30, 
+			"max_queued_bytes" => 1048576, "detect_anomalies" => "off", "overlap_limit" => 0, 
+			"max_queued_segs" => 2621, "require_3whs" => "off", "startup_3whs_timeout" => 0, 
+			"no_reassemble_async" => "off", "dont_store_lg_pkts" => "off", "max_window" => 0, 
+			"use_static_footprint_sizes" => "off", "check_session_hijacking" => "off", "ports_client" => "default", 
+			"ports_both" => "default", "ports_server" => "none" );
+	// See if this is initial entry and set to "default" if true
+	if ($eng_id < 1) {
+		$def['name'] = "default";
+		$def['bind_to'] = "all";
+	}
+	$pconfig = $def;
+}
+else {
+	$pconfig = $a_nat[$eng_id];
+
+	// Check for empty values and set sensible defaults
+	if (empty($pconfig['policy']))
+		$pconfig['policy'] = "bsd";
+	if (empty($pconfig['timeout']))
+		$pconfig['timeout'] = 30;
+	if (empty($pconfig['max_queued_bytes']) && $pconfig['max_queued_bytes'] <> 0)
+		$pconfig['max_queued_bytes'] = 1048576;
+	if (empty($pconfig['detect_anomalies']))
+		$pconfig['detect_anomalies'] = "off";
+	if (empty($pconfig['overlap_limit']))
+		$pconfig['overlap_limit'] = 0;
+	if (empty($pconfig['max_queued_segs']) && $pconfig['max_queued_segs'] <> 0)
+		$pconfig['max_queued_segs'] = 2621;
+	if (empty($pconfig['require_3whs']))
+		$pconfig['require_3whs'] = "off";
+	if (empty($pconfig['startup_3whs_timeout']))
+		$pconfig['startup_3whs_timeout'] = 0;
+	if (empty($pconfig['no_reassemble_async']))
+		$pconfig['no_reassemble_async'] = "off";
+	if (empty($pconfig['dont_store_lg_pkts']))
+		$pconfig['dont_store_lg_pkts'] = "off";
+	if (empty($pconfig['max_window']))
+		$pconfig['max_window'] = 0;
+	if (empty($pconfig['use_static_footprint_sizes']))
+		$pconfig['use_static_footprint_sizes'] = "off";
+	if (empty($pconfig['check_session_hijacking']))
+		$pconfig['check_session_hijacking'] = "off";
+	if (empty($pconfig['ports_client']))
+		$pconfig['ports_client'] = "default";
+	if (empty($pconfig['ports_both']))
+		$pconfig['ports_both'] = "default";
+	if (empty($pconfig['ports_server']))
+		$pconfig['ports_server'] = "none";
+}
+
+if ($_POST['Cancel']) {
+	// Clear and close out any session variable we created
+	session_start();
+	unset($_SESSION['stream5_client_import']);
+	session_write_close();
+	header("Location: /snort/snort_preprocessors.php?id={$id}#stream5_row");
+	exit;
+}
+
+// Check for returned "selected alias" if action is import
+if ($_GET['act'] == "import") {
+	session_start();
+	if (($_GET['varname'] == "bind_to" || $_GET['varname'] == "ports_client" || $_GET['varname'] == "ports_both" || $_GET['varname'] == "ports_server") 
+	     && !empty($_GET['varvalue'])) {
+		$pconfig[$_GET['varname']] = $_GET['varvalue'];
+		if(!isset($_SESSION['stream5_client_import']))
+			$_SESSION['stream5_client_import'] = array();
+
+		$_SESSION['stream5_client_import'][$_GET['varname']] = $_GET['varvalue'];
+		if (isset($_SESSION['stream5_client_import']['bind_to']))
+			$pconfig['bind_to'] = $_SESSION['stream5_client_import']['bind_to'];
+		if (isset($_SESSION['stream5_client_import']['ports_client']))
+			$pconfig['ports_client'] = $_SESSION['stream5_client_import']['ports_client'];
+		if (isset($_SESSION['stream5_client_import']['ports_both']))
+			$pconfig['ports_both'] = $_SESSION['stream5_client_import']['ports_both'];
+		if (isset($_SESSION['stream5_client_import']['ports_server']))
+			$pconfig['ports_server'] = $_SESSION['stream5_client_import']['ports_server'];
+	}
+	// If "varvalue" is empty, user likely hit CANCEL in Select Dialog,
+	// so restore any saved values.
+	elseif (empty($_GET['varvalue'])) {
+		if (isset($_SESSION['stream5_client_import']['bind_to']))
+			$pconfig['bind_to'] = $_SESSION['stream5_client_import']['bind_to'];
+		if (isset($_SESSION['stream5_client_import']['ports_client']))
+			$pconfig['ports_client'] = $_SESSION['stream5_client_import']['ports_client'];
+		if (isset($_SESSION['stream5_client_import']['ports_both']))
+			$pconfig['ports_both'] = $_SESSION['stream5_client_import']['ports_both'];
+		if (isset($_SESSION['stream5_client_import']['ports_server']))
+			$pconfig['ports_server'] = $_SESSION['stream5_client_import']['ports_server'];
+	}
+	else {
+		unset($_SESSION['stream5_client_import']);
+		unset($_SESSION['org_referer']);
+		unset($_SESSION['org_querystr']);
+		session_write_close();
+	}
+}
+
+if ($_POST['Submit']) {
+	// Clear and close out any session variable we created
+	session_start();
+	unset($_SESSION['org_referer']);
+	unset($_SESSION['org_querystr']);
+	unset($_SESSION['stream5_client_import']);
+	session_write_close();
+
+	/* Grab all the POST values and save in new temp array */
+	$engine = array();
+	if ($_POST['stream5_name']) { $engine['name'] = trim($_POST['stream5_name']); } else { $engine['name'] = "default"; }
+
+	/* Validate input values before saving */
+	if ($_POST['stream5_bind_to']) {
+		if (is_alias($_POST['stream5_bind_to'])) {
+			$engine['bind_to'] = $_POST['stream5_bind_to'];
+			if (!snort_is_single_addr_alias($_POST['stream5_bind_to']))
+				$input_errors[] = gettext("An Alias that evaluates to a single IP address or CIDR network is required for the 'Bind-To IP Address' value.");
+		}
+		elseif (strtolower(trim($_POST['stream5_bind_to'])) == "all")
+			$engine['bind_to'] = "all";
+		else
+			$input_errors[] = gettext("You must provide a valid Alias or the reserved keyword 'all' for the 'Bind-To IP Address' value.");
+	}
+	else {
+		$input_errors[] = gettext("The 'Bind-To IP Address' value cannot be blank.  Provide a valid Alias or the reserved keyword 'all'.");
+	}
+	if ($_POST['stream5_ports_client']) {
+		if (is_alias($_POST['stream5_ports_client']))
+			$engine['ports_client'] = $_POST['stream5_ports_client'];
+		elseif (strtolower(trim($_POST['stream5_ports_client'])) == "default")
+			$engine['ports_client'] = "default";
+		elseif (strtolower(trim($_POST['stream5_ports_client'])) == "all")
+			$engine['ports_client'] = "all";
+		elseif (strtolower(trim($_POST['stream5_ports_client'])) == "none")
+			$engine['ports_client'] = "none";
+		else
+			$input_errors[] = gettext("You must provide a valid Alias or one of the reserved keywords 'default', 'all' or 'none' for the TCP Target Ports 'ports_client' value.");
+	}
+	if ($_POST['stream5_ports_both']) {
+		if (is_alias($_POST['stream5_ports_both']))
+			$engine['ports_both'] = $_POST['stream5_ports_both'];
+		elseif (strtolower(trim($_POST['stream5_ports_both'])) == "default")
+			$engine['ports_both'] = "default";
+		elseif (strtolower(trim($_POST['stream5_ports_both'])) == "all")
+			$engine['ports_both'] = "all";
+		elseif (strtolower(trim($_POST['stream5_ports_both'])) == "none")
+			$engine['ports_both'] = "none";
+		else
+			$input_errors[] = gettext("You must provide a valid Alias or one of the reserved keywords 'default', 'all' or 'none' for the TCP Target Ports 'ports_both' value.");
+	}
+	if ($_POST['stream5_ports_server']) {
+		if (is_alias($_POST['stream5_ports_server']))
+			$engine['ports_server'] = $_POST['stream5_ports_server'];
+		elseif (strtolower(trim($_POST['stream5_ports_server'])) == "default")
+			$engine['ports_server'] = "default";
+		elseif (strtolower(trim($_POST['stream5_ports_server'])) == "all")
+			$engine['ports_server'] = "all";
+		elseif (strtolower(trim($_POST['stream5_ports_server'])) == "none")
+			$engine['ports_server'] = "none";
+		else
+			$input_errors[] = gettext("You must provide a valid Alias or one of the reserved keywords 'default', 'all' or 'none' for the TCP Target Ports 'ports_server' value.");
+	}
+
+	if (!empty($_POST['stream5_timeout']) || $_POST['stream5_timeout'] == 0) {
+		$engine['timeout'] = $_POST['stream5_timeout'];
+		if ($engine['timeout'] < 1 || $engine['timeout'] > 86400)
+			$input_errors[] = gettext("The value for Timeout must be between 1 and 86400.");
+	}
+	else
+		$engine['timeout'] = 60;
+
+	if (!empty($_POST['stream5_max_queued_bytes']) || $_POST['stream5_max_queued_bytes'] == 0) {
+		$engine['max_queued_bytes'] = $_POST['stream5_max_queued_bytes'];
+		if ($engine['max_queued_bytes'] <> 0) {
+			if ($engine['max_queued_bytes'] < 1024 || $engine['max_queued_bytes'] > 1073741824)
+				$input_errors[] = gettext("The value for Max_Queued_Bytes must either be 0, or between 1024 and 1073741824.");
+		}
+	}
+	else
+		$engine['max_queued_bytes'] = 1048576;
+
+	if (!empty($_POST['stream5_max_queued_segs']) || $_POST['stream5_max_queued_segs'] == 0) {
+		$engine['max_queued_segs'] = $_POST['stream5_max_queued_segs'];
+		if ($engine['max_queued_segs'] <> 0) {
+			if ($engine['max_queued_segs'] < 2 || $engine['max_queued_segs'] > 1073741824)
+				$input_errors[] = gettext("The value for Max_Queued_Segs must either be 0, or between 2 and 1073741824.");
+		}
+	}
+	else
+		$engine['max_queued_segs'] = 2621;
+
+	if (!empty($_POST['stream5_overlap_limit']) || $_POST['stream5_overlap_limit'] == 0) {
+		$engine['overlap_limit'] = $_POST['stream5_overlap_limit'];
+		if ($engine['overlap_limit'] < 0 || $engine['overlap_limit'] > 255)
+			$input_errors[] = gettext("The value for Overlap_Limit must be between 0 and 255.");
+	}
+	else
+		$engine['overlap_limit'] = 0;
+
+	if (!empty($_POST['stream5_max_window']) || $_POST['stream5_max_window'] == 0) {
+		$engine['max_window'] = $_POST['stream5_max_window'];
+		if ($engine['max_window'] < 0 || $engine['max_window'] > 1073725440)
+			$input_errors[] = gettext("The value for Max_Window must be between 0 and 1073725440.");
+	}
+	else
+		$engine['max_window'] = 0;
+
+	if (!empty($_POST['stream5_3whs_startup_timeout']) || $_POST['stream5_3whs_startup_timeout'] == 0) {
+		$engine['startup_3whs_timeout'] = $_POST['stream5_3whs_startup_timeout'];
+		if ($engine['startup_3whs_timeout'] < 0 || $engine['startup_3whs_timeout'] > 86400)
+			$input_errors[] = gettext("The value for 3whs_Startup_Timeout must be between 0 and 86400.");
+	}
+	else
+		$engine['startup_3whs_timeout'] = 0;
+
+	if ($_POST['stream5_policy']) { $engine['policy'] = $_POST['stream5_policy']; } else { $engine['policy'] = "bsd"; }
+	if ($_POST['stream5_ports']) { $engine['ports'] = $_POST['stream5_ports']; } else { $engine['ports'] = "both"; }
+
+	$engine['detect_anomalies'] = $_POST['stream5_detect_anomalies'] ? 'on' : 'off';
+	$engine['require_3whs'] = $_POST['stream5_require_3whs'] ? 'on' : 'off';
+	$engine['no_reassemble_async'] = $_POST['stream5_no_reassemble_async'] ? 'on' : 'off';
+	$engine['dont_store_lg_pkts'] = $_POST['stream5_dont_store_lg_pkts'] ? 'on' : 'off';
+	$engine['use_static_footprint_sizes'] = $_POST['stream5_use_static_footprint_sizes'] ? 'on' : 'off';
+	$engine['check_session_hijacking'] = $_POST['stream5_check_session_hijacking'] ? 'on' : 'off';
+
+	/* Can only have one "all" Bind_To address */
+	if ($engine['bind_to'] == "all" && $engine['name'] <> "default")
+		$input_errors[] = gettext("Only one default Stream5 Engine can be bound to all addresses.");
+	$pconfig = $engine;
+
+	/* if no errors, write new entry to conf */
+	if (!$input_errors) {
+		if (isset($eng_id) && $a_nat[$eng_id]) {
+			$a_nat[$eng_id] = $engine;
+		}
+		else
+			$a_nat[] = $engine;
+
+		/* Reorder the engine array to ensure the */
+		/* 'bind_to=all' entry is at the bottom   */
+		/* if it contains more than one entry.    */
+		if (count($a_nat) > 1) {
+			$i = -1;
+			foreach ($a_nat as $f => $v) {
+				if ($v['bind_to'] == "all") {
+					$i = $f;
+					break;
+				}
+			}
+			/* Only relocate the entry if we  */
+			/* found it, and it's not already */
+			/* at the end.                    */
+			if ($i > -1 && ($i < (count($a_nat) - 1))) {
+				$tmp = $a_nat[$i];
+				unset($a_nat[$i]);
+				$a_nat[] = $tmp;
+			}
+		}
+
+		/* Now write the new engine array to conf */
+		write_config();
+
+		header("Location: /snort/snort_preprocessors.php?id={$id}#stream5_row");
+		exit;
+	}
+}
+
+$if_friendly = snort_get_friendly_interface($config['installedpackages']['snortglobal']['rule'][$id]['interface']);
+$pgtitle = gettext("Snort: Interface {$if_friendly} - Stream5 Preprocessor TCP Engine");
+include_once("head.inc");
+
+?>
+
+<body link="#0000CC" vlink="#0000CC" alink="#0000CC" >
+
+<?php
+include("fbegin.inc");
+if ($input_errors) print_input_errors($input_errors);
+if ($savemsg)
+	print_info_box($savemsg);
+?>
+
+<form action="snort_stream5_engine.php" method="post" name="iform" id="iform">
+<input name="id" type="hidden" value="<?=$id?>">
+<input name="eng_id" type="hidden" value="<?=$eng_id?>">
+<div id="boxarea">
+<table width="100%" border="0" cellpadding="0" cellspacing="0">
+<tr>
+<td class="tabcont">
+<table width="100%" border="0" cellpadding="6" cellspacing="0">
+	<tr>
+		<td colspan="2" valign="middle" class="listtopic"><?php echo gettext("Stream5 Target-Based TCP Stream Reassembly Engine Configuration"); ?></td>
+	</tr>
+	<tr>
+		<td valign="top" class="vncell"><?php echo gettext("TCP Engine Name"); ?></td>
+		<td class="vtable">
+			<input name="stream5_name" type="text" class="formfld unknown" id="stream5_name" size="25" maxlength="25" 
+			value="<?=htmlspecialchars($pconfig['name']);?>"<?php if (htmlspecialchars($pconfig['name']) == "default") echo "readonly";?>>&nbsp;
+			<?php if (htmlspecialchars($pconfig['name']) <> "default") 
+					echo gettext("Name or description for this engine.  (Max 25 characters)");
+				else
+					echo "<span class=\"red\">" . gettext("The name for the 'default' engine is read-only.") . "</span>";?><br/>
+			<?php echo gettext("Unique name or description for this engine configuration.  Default value is ") . 
+			"<strong>" . gettext("default") . "</strong>"; ?>.<br/>
+		</td>
+	</tr>
+	<tr>
+		<td valign="top" class="vncell"><?php echo gettext("Bind-To IP Address"); ?></td>
+		<td class="vtable">
+		<?php if ($pconfig['name'] <> "default") : ?>
+			<table width="95%" border="0" cellpadding="2" cellspacing="0">
+				<tr>
+					<td class="vexpl"><input name="stream5_bind_to" type="text" class="formfldalias" id="stream5_bind_to" size="32" 
+					value="<?=htmlspecialchars($pconfig['bind_to']);?>" title="<?=trim(filter_expand_alias($pconfig['bind_to']));?>" autocomplete="off">&nbsp;
+					<?php echo gettext("IP address or network to bind this engine to."); ?></td>
+					<td align="right"><input type="button" class="formbtns" value="Aliases" onclick="parent.location='snort_select_alias.php?id=<?=$id;?>&eng_id=<?=$eng_id;?>&type=host|network&varname=bind_to&act=import&multi_ip=no'" 
+					title="<?php echo gettext("Select an existing IP alias");?>"/></td>
+				</tr>
+				<tr>
+					<td class="vexpl" colspan="2"><?php echo gettext("This engine will only run for packets with the destination IP address specified.  Default value is ") . 
+					"<strong>" . gettext("all") . "</strong>" . gettext(".  Only a single IP address or single network in CIDR form may be specified.  ") . 
+					gettext("IP Lists are not allowed.");?></td>
+				</tr>
+			</table><br/>
+			<span class="red"><strong><?php echo gettext("Note: ") . "</strong></span>" . gettext("Supplied value must be a pre-configured Alias or the keyword 'all'.  ");?>
+		<?php else : ?>
+			<input name="stream5_bind_to" type="text" class="formfldalias" id="stream5_bind_to" size="32" 
+			value="<?=htmlspecialchars($pconfig['bind_to']);?>" autocomplete="off" readonly>&nbsp;
+			<?php echo "<span class=\"red\">" . gettext("IP List for the default engine is read-only and must be 'all'.") . "</span>";?><br/>
+			<?php echo gettext("The default engine is required and only runs for packets with destination addresses not matching other engine IP Lists.");?><br/>
+		<?php endif ?>
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("TCP Target Policy"); ?></td>
+		<td width="78%" class="vtable">
+			<select name="stream5_policy" class="formselect" id="stream5_policy"> 
+			<?php
+			$profile = array( 'BSD', 'First', 'HPUX', 'HPUX10', 'Irix', 'Last', 'Linux', 'MacOS', 'Old-Linux', 
+					 'Solaris', 'Vista', 'Windows', 'Win2003' );
+			foreach ($profile as $val): ?>
+			<option value="<?=strtolower($val);?>" 
+			<?php if (strtolower($val) == $pconfig['policy']) echo "selected"; ?>>
+				<?=gettext($val);?></option>
+				<?php endforeach; ?>
+			</select>&nbsp;&nbsp;<?php echo gettext("Choose the TCP target policy appropriate for the protected hosts.  The default is ") . 
+			"<strong>" . gettext("BSD") . "</strong>"; ?>.<br/><br/>
+			<?php echo gettext("Available OS targets are BSD, First, HPUX, HPUX10, Irix, Last, Linux, MacOS, Old Linux, Solaris, Vista, Windows, and Win2003 Server."); ?><br/>
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("TCP Target Ports"); ?></td>
+		<td width="78%" class="vtable">
+			<table width="95%" border="0" cellpadding="2" cellspacing="0">
+			   <tr>
+				<td class="vexpl"><strong><?php echo gettext("Client:"); ?></strong></td>
+				<td class="vexpl"><input name="stream5_ports_client" type="text" class="formfldalias" id="stream5_ports_client" size="32" 
+					value="<?=htmlspecialchars($pconfig['ports_client']);?>" title="<?=trim(filter_expand_alias($pconfig['ports_client']));?>" autocomplete="off"><span class="vexpl">&nbsp;
+					<?php echo gettext("Default value is the keyword ") . "<strong>" . gettext("default") . "</strong>.";?></span>
+				</td>
+				<td align="right"><input type="button" class="formbtns" value="Aliases" onclick="parent.location='snort_select_alias.php?id=<?=$id;?>&eng_id=<?=$eng_id;?>&type=port&varname=ports_client&act=import'"  
+					title="<?php echo gettext("Select an existing port alias");?>"/>
+				</td>
+			   </tr>
+			   <tr>
+				<td class="vexpl"><strong><?php echo gettext("Server:"); ?></strong></td>
+				<td class="vexpl"><input name="stream5_ports_server" type="text" class="formfldalias" id="stream5_ports_server" size="32" 
+					value="<?=htmlspecialchars($pconfig['ports_server']);?>" title="<?=trim(filter_expand_alias($pconfig['ports_server']));?>" autocomplete="off"><span class="vexpl">&nbsp;
+					<?php echo gettext("Default value is the keyword ") . "<strong>" . gettext("none") . "</strong>.";?></span>
+				</td>
+				<td align="right"><input type="button" class="formbtns" value="Aliases" onclick="parent.location='snort_select_alias.php?id=<?=$id;?>&eng_id=<?=$eng_id;?>&type=port&varname=ports_server&act=import'"  
+					title="<?php echo gettext("Select an existing port alias");?>"/>
+				</td>
+			   </tr>
+			   <tr>
+				<td class="vexpl"><strong><?php echo gettext("Both:"); ?></strong></td>
+				<td class="vexpl"><input name="stream5_ports_both" type="text" class="formfldalias" id="stream5_ports_both" size="32" 
+					value="<?=htmlspecialchars($pconfig['ports_both']);?>" title="<?=trim(filter_expand_alias($pconfig['ports_both']));?>" autocomplete="off"><span class="vexpl">&nbsp;
+					<?php echo gettext("Default value is the keyword ") . "<strong>" . gettext("default") . "</strong>.";?></span>
+				</td>
+				<td align="right"><input type="button" class="formbtns" value="Aliases" onclick="parent.location='snort_select_alias.php?id=<?=$id;?>&eng_id=<?=$eng_id;?>&type=port&varname=ports_both&act=import'"  
+					title="<?php echo gettext("Select an existing port alias");?>"/>
+				</td>
+			   </tr>
+			</table>
+			<br/><?php echo gettext("Configures which side of the connection packets should be reassembled for based on the configured destination ports.  See ");?>
+			<a href="http://www.snort.org/vrt/snort-conf-configurations/" target="_blank"><?php echo gettext("www.snort.org/vrt/snort-conf-configurations");?></a>
+			<?php echo gettext(" for the default configuration port values.");?><br/><br/>
+			<span class="red"><strong><?php echo gettext("Note: ") . "</strong></span>" . 
+			gettext("Supplied value must be a pre-configured Alias or the keyword 'default', 'all' or 'none'.");?><br/>
+			<span class="red"><?php echo gettext("Hint: ") . "</span>" . gettext("Most users should leave these settings at their default values.");?>
+		</td>
+	</tr>
+	<tr>
+		<td valign="top" class="vncell"><?php echo gettext("TCP Max Window"); ?></td>
+		<td class="vtable">
+			<input name="stream5_max_window" type="text" class="formfld unknown" id="stream5_max_window" size="9" 
+			value="<?=htmlspecialchars($pconfig['max_window']);?>" maxlength="10">
+			<?php echo gettext("Maximum allowed TCP window.  Min is ") . "<strong>0</strong>" . gettext(" and max is ") . 
+			"<strong>1073725440</strong>" . gettext(" (65535 left shift 14)"); ?>.<br/><br/>
+			<?php echo gettext("Sets the TCP max window size.  Default value is ") .
+			"<strong>0</strong>" . gettext(" (unlimited).  This option is intended to prevent a DoS against Stream5 by " . 
+			"attacker using an abnormally large window, so using a value near the maximum is discouraged."); ?><br/>
+		</td>
+	</tr>
+	<tr>
+		<td valign="top" class="vncell"><?php echo gettext("TCP Timeout"); ?></td>
+		<td class="vtable">
+			<input name="stream5_timeout" type="text" class="formfld unknown" id="stream5_timeout" size="9" 
+			value="<?=htmlspecialchars($pconfig['timeout']);?>" maxlength="5">
+			<?php echo gettext("TCP Session timeout in seconds.  Min is ") . "<strong>1</strong>" . gettext(" and max is ") . 
+			"<strong>86400</strong>" . gettext(" (approximately 1 day)"); ?>.<br/><br/>
+			<?php echo gettext("Sets the session reassembly timeout period for TCP packets.  Default value is ") .
+			"<strong>30</strong>" . gettext(" seconds."); ?><br/>
+		</td>
+	</tr>
+	<tr>
+		<td valign="top" class="vncell"><?php echo gettext("TCP Max Queued Bytes"); ?></td>
+		<td class="vtable">
+			<input name="stream5_max_queued_bytes" type="text" class="formfld unknown" id="stream5_max_queued_bytes" size="9" 
+			value="<?=htmlspecialchars($pconfig['max_queued_bytes']);?>" maxlength="10">
+			<?php echo gettext("Minimum is ") . "<strong>" . gettext("1024") . "</strong>" . gettext(" and Maximum is ") . 
+			"<strong>" . gettext("1073741824") . "</strong>" . gettext("  (") . 
+			"<strong>" . gettext("0") . "</strong>" . gettext(" means Maximum)."); ?><br/><br/>
+			
+			<?php echo gettext("The number of bytes to be queued for reassembly of TCP sessions in " .
+			"memory. Default value is <strong>1048576</strong>"); ?>.<br/>
+		</td>
+	</tr>
+	<tr>
+		<td valign="top" class="vncell"><?php echo gettext("TCP Max Queued Segs"); ?></td>
+		<td class="vtable">
+			<input name="stream5_max_queued_segs" type="text" class="formfld unknown" id="stream5_max_queued_segs" size="9" 
+			value="<?=htmlspecialchars($pconfig['max_queued_segs']);?>" maxlength="10">
+			<?php echo gettext("Minimum is ") . "<strong>" . gettext("2") . "</strong>" . gettext(" and Maximum is ") . 
+			"<strong>" . gettext("1073741824") . "</strong>" . gettext("  (") . 
+			"<strong>" . gettext("0") . "</strong>" . gettext(" means Maximum)");?>.<br/><br/>
+			<?php echo gettext("The number of segments to be queued for reassembly of TCP sessions " .
+			"in memory. Default value is <strong>2621</strong>"); ?>.<br/>
+		</td>
+	</tr>
+	<tr>
+		<td valign="top" class="vncell"><?php echo gettext("TCP Overlap Limit"); ?></td>
+		<td class="vtable">
+			<input name="stream5_overlap_limit" type="text" class="formfld unknown" id="stream5_overlap_limit" size="9" 
+			value="<?=htmlspecialchars($pconfig['overlap_limit']);?>" maxlength="3">
+			<?php echo gettext("Minimum is ") . "<strong>0</strong>" . gettext(" (unlimited) and Maximum is ") . "<strong>" . 
+			gettext("255") . "</strong>"; ?>.<br/><br/>
+			<?php echo gettext("Sets the limit for the number of overlapping packets.  Default value is ") .
+			"<strong>0</strong>" . gettext(" (unlimited)."); ?><br/>
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("Detect TCP Anomalies"); ?></td>
+		<td width="78%" class="vtable"><input name="stream5_detect_anomalies" id="stream5_detect_anomalies" type="checkbox" value="on"  
+			<?php if ($pconfig['detect_anomalies']=="on") echo "checked"; ?>>
+			<?php echo gettext("Detect TCP protocol anomalies.  Default is ") . 
+			"<strong>" . gettext("Not Checked") . "</strong>"; ?>.<br/>
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("Check Session Hijacking"); ?></td>
+		<td width="78%" class="vtable"><input name="stream5_check_session_hijacking" id="stream5_check_session_hijacking" type="checkbox" value="on"  
+			<?php if ($pconfig['check_session_hijacking']=="on") echo "checked"; ?>>
+			<?php echo gettext("Check for TCP session hijacking.  Default is ") . 
+			"<strong>" . gettext("Not Checked") . "</strong>"; ?>.<br/><br/>
+			<?php echo gettext("This check validates the hardware (MAC) address from both sides of the connection -- " . 
+			"as established on the 3-way handshake -- against subsequent packets received on the session.");?>
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("Require 3-Way Handshake"); ?></td>
+		<td width="78%" class="vtable"><input name="stream5_require_3whs" type="checkbox" value="on" 
+			<?php if ($pconfig['require_3whs']=="on") echo "checked"; ?> onclick="stream5_3whs_enable_change();">
+			<?php echo gettext("Establish sessions only on completion of SYN/SYN-ACK/ACK handshake.  Default is ") . 
+			"<strong>" . gettext("Not Checked") . "</strong>"; ?>.<br/>
+		</td>
+	</tr>
+	<tr id="stream5_3whs_startuptimeout_row">
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("3-Way Handshake Startup Timeout"); ?></td>
+		<td width="78%" class="vtable">
+			<input name="stream5_3whs_startup_timeout" type="text" class="formfld unknown" id="stream5_3whs_startup_timeout" size="9" 
+			value="<?=htmlspecialchars($pconfig['startup_3whs_timeout']);?>" maxlength="5">
+			<?php echo gettext("3-Way Handshake Startup Timeout in seconds.  Min is ") . "<strong>" . gettext("0") . "</strong>" . 
+			gettext(" and Max is ") . "<strong>" . gettext("86400") . "</strong>" . gettext(" (1 day).");?><br/><br/>
+			<?php echo gettext("This allows a grace period for existing sessions to be considered established during that " . 
+			"interval immediately after Snort is started.  The default is ") . "<strong>" . gettext("0") . 
+			"</strong>" . gettext(", (don't consider existing sessions established).");?>
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("Do Not Reassemble Async"); ?></td>
+		<td width="78%" class="vtable"><input name="stream5_no_reassemble_async" type="checkbox" value="on" 
+			<?php if ($pconfig['no_reassemble_async']=="on") echo "checked "; ?>>
+			<?php echo gettext("Do not queue packets for reassembly if traffic has not been seen in both directions.  Default is ") . 
+			"<strong>" . gettext("Not Checked") . "</strong>"; ?>.
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("Use Static Footprint Sizes"); ?></td>
+		<td width="78%" class="vtable"><input name="stream5_use_static_footprint_sizes" id="stream5_use_static_footprint_sizes" type="checkbox" value="on"  
+			<?php if ($pconfig['use_static_footprint_sizes']=="on") echo "checked "; ?>>
+			<?php echo gettext("Emulate Stream4 behavior for flushing reassembled packets.  Default is ") . 
+			"<strong>" . gettext("Not Checked") . "</strong>"; ?>.<br/>
+		</td>
+	</tr>
+	<tr>
+		<td width="22%" valign="top" class="vncell"><?php echo gettext("Do Not Store Large TCP Packets"); ?></td>
+		<td width="78%" class="vtable">
+			<input name="stream5_dont_store_lg_pkts" type="checkbox" value="on" 
+			<?php if ($pconfig['dont_store_lg_pkts']=="on") echo "checked"; ?>>
+			<?php echo gettext("Do not queue large packets in reassembly buffer to increase performance.  Default is ") . 
+			"<strong>" . gettext("Not Checked") . "</strong>"; ?>.<br/><br/>
+			<?php echo "<span class=\"red\"><strong>" . gettext("Warning:  ") . "</strong></span>" . 
+			gettext("Enabling this option could result in missed packets.  Recommended setting is not checked."); ?>
+		</td>  
+	</tr>
+	<tr>
+		<td width="22%" valign="bottom">&nbsp;</td>
+		<td width="78%" valign="bottom">
+			<input name="Submit" id="submit" type="submit" class="formbtn" value=" Save " title="<?php echo 
+			gettext("Save Stream5 engine settings and return to Preprocessors tab"); ?>">
+			&nbsp;&nbsp;&nbsp;&nbsp;
+			<input name="Cancel" id="cancel" type="submit" class="formbtn" value="Cancel" title="<?php echo 
+			gettext("Cancel changes and return to Preprocessors tab"); ?>"></td>
+	</tr>
+</table>
+</td>
+</tr>
+</table>
+</div>
+</form>
+<?php include("fend.inc"); ?>
+</body>
+<script type="text/javascript" src="/javascript/autosuggest.js">
+</script>
+<script type="text/javascript" src="/javascript/suggestions.js">
+</script>
+<script type="text/javascript">
+
+function stream5_3whs_enable_change() {
+	var endis = !(document.iform.stream5_require_3whs.checked);
+
+	// Hide the "3whs_startup_timeout" row if stream5_require_3whs disabled
+	if (endis)
+		document.getElementById("stream5_3whs_startuptimeout_row").style.display="none";
+	else
+		document.getElementById("stream5_3whs_startuptimeout_row").style.display="table-row";
+}
+
+<?php
+	$isfirst = 0;
+	$aliases = "";
+	$addrisfirst = 0;
+	$portisfirst = 0;
+	$aliasesaddr = "";
+	$aliasesport = "";
+	if(isset($config['aliases']['alias']) && is_array($config['aliases']['alias']))
+		foreach($config['aliases']['alias'] as $alias_name) {
+			// Skip any Aliases that resolve to an empty string
+			if (trim(filter_expand_alias($alias_name['name'])) == "")
+				continue;
+			if ($alias_name['type'] == "host" || $alias_name['type'] == "network") {
+				if($addrisfirst == 1) $aliasesaddr .= ",";
+				$aliasesaddr .= "'" . $alias_name['name'] . "'";
+				$addrisfirst = 1;
+			}
+			elseif ($alias_name['type'] == "port") {
+				if($portisfirst == 1) $aliasesport .= ",";
+				$aliasesport .= "'" . $alias_name['name'] . "'";
+				$portisfirst = 1;
+			}
+		}
+
+?>
+	var addressarray=new Array(<?php echo $aliasesaddr; ?>);
+	var portarray=new Array(<?php echo $aliasesport; ?>);
+
+function createAutoSuggest() {
+<?php
+	echo "objAlias = new AutoSuggestControl(document.getElementById('stream5_bind_to'), new StateSuggestions(addressarray));\n";
+	echo "objAliasPortsClient = new AutoSuggestControl(document.getElementById('stream5_ports_client'), new StateSuggestions(portarray));\n";
+	echo "objAliasPortsServer = new AutoSuggestControl(document.getElementById('stream5_ports_server'), new StateSuggestions(portarray));\n";
+	echo "objAliasPortsBoth = new AutoSuggestControl(document.getElementById('stream5_ports_both'), new StateSuggestions(portarray));\n";
+?>
+}
+
+setTimeout("createAutoSuggest();", 500);
+stream5_3whs_enable_change();
+
+</script>
+
+</html>