Sync with m0n0wall 1.2b9's captiveportal.

author: Scott Ullrich <sullrich@pfsense.org> 2005-09-12 18:56:37 +0000
committer: Scott Ullrich <sullrich@pfsense.org> 2005-09-12 18:56:37 +0000
commit: 3db19cf1b0d5950d2980692c849b8ebc608c3aea (patch)
tree: 90e87880cc953d09034848b1513ba4203f0ed988 /etc/inc/captiveportal.inc
parent: d460bfdc56d5d907368e22cd5e637a5c16c2da41 (diff)
download: pfsense-3db19cf1b0d5950d2980692c849b8ebc608c3aea.zip
pfsense-3db19cf1b0d5950d2980692c849b8ebc608c3aea.tar.gz
1 files changed, 386 insertions, 206 deletions
diff --git a/etc/inc/captiveportal.inc b/etc/inc/captiveportal.inc
index 2cdc63b..52e878d 100644
--- a/etc/inc/captiveportal.inc
+++ b/etc/inc/captiveportal.inc
@@ -1,26 +1,21 @@
 <?php
-/* $Id$ */
 /*
 	captiveportal.inc
-	part of pfSense (http://www.pfSense.com)
-
-	Copyright (C) 2005 Scott Ullrich <sullrich@gmail.com>
-	All rights reserved.
-        
-        originally part of m0n0wall (http://m0n0.ch/wall)
+	part of m0n0wall (http://m0n0.ch/wall)
+	
 	Copyright (C) 2003-2005 Manuel Kasper <mk@neon1.net>.
 	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
@@ -38,27 +33,37 @@
 	added rules which may have been created by other per-user code (index.php, etc).
 	These changes are (c) 2004 Keycom PLC.
 */
-
+	
 /* include all configuration functions */
 require_once("functions.inc");
+require_once("radius_authentication.inc");
 require_once("radius_accounting.inc") ;
 
 function captiveportal_configure() {
 	global $config, $g;
-
-	if (isset($config['captiveportal']['enable'])) {
-
-		if($g['booting']) echo "Starting captive portal... ";
-
+	
+	if (isset($config['captiveportal']['enable']) &&
+		(($config['captiveportal']['interface'] == "lan") ||
+			isset($config['interfaces'][$config['captiveportal']['interface']]['enable']))) {
+	
+		if ($g['booting'])
+			echo "Starting captive portal... ";
+		
 		/* kill any running mini_httpd */
 		killbypid("{$g['varrun_path']}/mini_httpd.cp.pid");
 		killbypid("{$g['varrun_path']}/mini_httpd.cps.pid");
-
+		
 		/* kill any running minicron */
 		killbypid("{$g['varrun_path']}/minicron.pid");
-
+		
+		/* generate ipfw rules */
+		$cprules = captiveportal_rules_generate();
+		
+		/* make sure ipfw is loaded */
+		mwexec("/sbin/kldload ipfw");
+		
 		/* stop accounting on all clients */
-		captiveportal_radius_stop_all() ;
+		captiveportal_radius_stop_all();
 
 		/* remove old information */
 		unlink_if_exists("{$g['vardb_path']}/captiveportal.nextrule");
@@ -66,7 +71,7 @@ function captiveportal_configure() {
 		unlink_if_exists("{$g['vardb_path']}/captiveportal_mac.db");
 		unlink_if_exists("{$g['vardb_path']}/captiveportal_ip.db");
 		unlink_if_exists("{$g['vardb_path']}/captiveportal_radius.db");
-
+		
 		/* write portal page */
 		if ($config['captiveportal']['page']['htmltext'])
 			$htmltext = base64_decode($config['captiveportal']['page']['htmltext']);
@@ -74,37 +79,16 @@ function captiveportal_configure() {
 			/* example/template page */
 			$htmltext = <<<EOD
 <html>
-<title>pfSense's captive portal</title>
 <head>
- <STYLE type="text/css">
-.listhdrr {
-	background-color: #BBBBBB;
-	padding-right: 16px;
-	padding-left: 6px;
-	font-weight: bold;
-	border-right: 1px solid #999999;
-	border-bottom: 1px solid #999999;
-	font-size: 11px;
-	padding-top: 5px;
-	padding-bottom: 5px;
-}
-
- </STYLE>
+<title>m0n0wall captive portal</title>
 </head>
-<body bgcolor="#990000">
-<center>
-<font color="white" face="arial" size="+1">Welcome to pfSense's captive portal!</font>
-<p>
+<body>
+<h2>m0n0wall captive portal</h2>
+<p>This is the default captive portal page. Please upload your own custom HTML file on the <em>Services: Captive portal</em> screen in the m0n0wall webGUI.</p>
 <form method="post" action="\$PORTAL_ACTION\$">
-<table border="0" cellpadding="6" cellspacing="0">
-<tr><td align="right" class="listhdrr"><font color="white">Username:</td><td class="listhdrr"><input name="auth_user" type="text"></td></tr>
-<tr><td align="right" class="listhdrr"><font color="white">Password:</td><td class="listhdrr"><input name="auth_pass" type="password"></td></tr>
-<input name="redirurl" type="hidden" value="\$PORTAL_REDIRURL\$">
-</table>
-<p>
-<center><input name="accept" type="submit" value="Continue">
+  <input name="accept" type="submit" value="Continue">
+  <input name="redirurl" type="hidden" value="\$PORTAL_REDIRURL\$">
 </form>
-</center>
 </body>
 </html>
 
@@ -114,9 +98,9 @@ EOD;
 		$fd = @fopen("{$g['varetc_path']}/captiveportal.html", "w");
 		if ($fd) {
 			fwrite($fd, $htmltext);
-			fclose($fd);
+			fclose($fd);	
 		}
-
+		
 		/* write error page */
 		if ($config['captiveportal']['page']['errtext'])
 			$errtext = base64_decode($config['captiveportal']['page']['errtext']);
@@ -143,26 +127,45 @@ EOD;
 		$fd = @fopen("{$g['varetc_path']}/captiveportal-error.html", "w");
 		if ($fd) {
 			fwrite($fd, $errtext);
-			fclose($fd);
+			fclose($fd);	
 		}
 
+		/* load rules */
+		mwexec("/sbin/ipfw -f delete set 1");
+		mwexec("/sbin/ipfw -f delete set 2");
+		mwexec("/sbin/ipfw -f delete set 3");
+		
+		/* XXX - seems like ipfw cannot accept rules directly on stdin,
+		   so we have to write them to a temporary file first */
+		$fd = @fopen("{$g['tmp_path']}/ipfw.cp.rules", "w");
+		if (!$fd) {
+			printf("Cannot open ipfw.cp.rules in captiveportal_configure()\n");
+			return 1;
+		}
+			
+		fwrite($fd, $cprules);
+		fclose($fd);
+		
+		mwexec("/sbin/ipfw {$g['tmp_path']}/ipfw.cp.rules");
+		
+		unlink("{$g['tmp_path']}/ipfw.cp.rules");
+		
+		/* filter on layer2 as well so we can check MAC addresses */
+		mwexec("/sbin/sysctl net.link.ether.ipfw=1");
+		
 		chdir($g['captiveportal_path']);
-
+		
 		/* start web server */
 		mwexec("/usr/local/sbin/mini_httpd -a -M 0 -u root -maxproc 16" .
 			" -p 8000 -i {$g['varrun_path']}/mini_httpd.cp.pid");
-
-		$fd = fopen("/tmp/captiveportal.txt", "w");
-		fwrite($fd, "/usr/local/sbin/mini_httpd -a -M 0 -u root -maxproc 16 -p 8000 -i {$g['varrun_path']}/mini_httpd.cp.pid");
-		fclose($fd);
-
+		
 		/* fire up another one for HTTPS if requested */
 		if (isset($config['captiveportal']['httpslogin']) &&
 			$config['captiveportal']['certificate'] && $config['captiveportal']['private-key']) {
-
+			
 			$cert = base64_decode($config['captiveportal']['certificate']);
 			$key = base64_decode($config['captiveportal']['private-key']);
-
+			
 			$fd = fopen("{$g['varetc_path']}/cert-portal.pem", "w");
 			if (!$fd) {
 				printf("Error: cannot open cert-portal.pem in system_webgui_start().\n");
@@ -173,32 +176,33 @@ EOD;
 			fwrite($fd, "\n");
 			fwrite($fd, $key);
 			fclose($fd);
-
+			
 			mwexec("/usr/local/sbin/mini_httpd -S -a -M 0 -E {$g['varetc_path']}/cert-portal.pem" .
 				" -u root -maxproc 16 -p 8001" .
 				" -i {$g['varrun_path']}/mini_httpd.cps.pid");
 		}
-
+			
 		/* start pruning process (interval = 60 seconds) */
-		//mwexec("/usr/local/bin/minicron 60 {$g['varrun_path']}/minicron.pid " .
-		//	"/etc/rc.prunecaptiveportal");
-
+		mwexec("/usr/local/bin/minicron 60 {$g['varrun_path']}/minicron.pid " .
+			"/etc/rc.prunecaptiveportal");
+		
 		/* generate passthru mac database */
-		captiveportal_passthrumac_configure() ;
-		/* create allowed ip database and insert pf tables to make it so */
-		captiveportal_allowedip_configure() ;
+		captiveportal_passthrumac_configure();
+		/* create allowed ip database and insert ipfw rules to make it so */
+		captiveportal_allowedip_configure();
 
 		/* generate radius server database */
-		if($config['captiveportal']['radiusip'] && $config['captiveportal']['auth_method']=="radius") {
-			$radiusip = $config['captiveportal']['radiusip'] ;
+		if ($config['captiveportal']['radiusip'] && (!isset($config['captiveportal']['auth_method']) ||
+				($config['captiveportal']['auth_method'] == "radius"))) {
+			$radiusip = $config['captiveportal']['radiusip'];
 
-			if($config['captiveportal']['radiusport'])
-				$radiusport = $config['captiveportal']['radiusport'] ;
+			if ($config['captiveportal']['radiusport'])
+				$radiusport = $config['captiveportal']['radiusport'];
 			else
 				$radiusport = 1812;
 
-			if($config['captiveportal']['radiusacctport'])
-				$radiusacctport = $config['captiveportal']['radiusacctport'] ;
+			if ($config['captiveportal']['radiusacctport'])
+				$radiusacctport = $config['captiveportal']['radiusacctport'];
 			else
 				$radiusacctport = 1813;
 
@@ -209,134 +213,277 @@ EOD;
 				printf("Error: cannot open radius DB file in captiveportal_configure().\n");
 				return 1;
 			} else {
-				fwrite($fd,$radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey) ;
+				fwrite($fd,$radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey);
 			}
-			fclose($fd) ;
+			fclose($fd);
 		}
 
-		if($g['booting']) print "done.\n";
-
+		if ($g['booting'])
+			echo "done\n";
+		
 	} else {
 		killbypid("{$g['varrun_path']}/mini_httpd.cp.pid");
+		killbypid("{$g['varrun_path']}/mini_httpd.cps.pid");
 		killbypid("{$g['varrun_path']}/minicron.pid");
-		captiveportal_radius_stop_all() ;
-	}
 
+		captiveportal_radius_stop_all();
+
+		mwexec("/sbin/sysctl net.link.ether.ipfw=0");
+
+		if (!isset($config['shaper']['enable'])) {
+			/* unload ipfw */
+			mwexec("/sbin/kldunload ipfw");
+		} else {
+			/* shaper is on - just remove our rules */
+			mwexec("/sbin/ipfw -f delete set 1");
+			mwexec("/sbin/ipfw -f delete set 2");
+			mwexec("/sbin/ipfw -f delete set 3");
+		}
+	}
+	
 	return 0;
 }
 
+function captiveportal_rules_generate() {
+	global $config, $g;
+	
+	$cpifn = $config['captiveportal']['interface'];
+	$cpif = $config['interfaces'][$cpifn]['if'];
+	$cpip = $config['interfaces'][$cpifn]['ipaddr'];
+
+	/* note: the captive portal daemon inserts all pass rules for authenticated
+	   clients as skipto 50000 rules to make traffic shaping work */
+
+	$cprules = "";
+	
+	/* captive portal on LAN interface? */
+	if ($cpifn == "lan") {
+		/* add anti-lockout rules */
+		$cprules .= <<<EOD
+add 500 set 1 pass all from $cpip to any out via $cpif
+add 501 set 1 pass all from any to $cpip in via $cpif
+
+EOD;
+	}
+
+	$cprules .= <<<EOD
+# skip to traffic shaper if not on captive portal interface
+add 1000 set 1 skipto 50000 all from any to any not layer2 not via $cpif
+# pass all layer2 traffic on other interfaces
+add 1001 set 1 pass layer2 not via $cpif
+
+# layer 2: pass ARP
+add 1100 set 1 pass layer2 mac-type arp
+# layer 2: block anything else non-IP
+add 1101 set 1 deny layer2 not mac-type ip
+# layer 2: check if MAC addresses of authenticated clients are correct
+add 1102 set 1 skipto 20000 layer2
+
+# allow access to our DHCP server (which needs to be able to ping clients as well)
+add 1200 set 1 pass udp from any 68 to 255.255.255.255 67 in
+add 1201 set 1 pass udp from any 68 to $cpip 67 in
+add 1202 set 1 pass udp from $cpip 67 to any 68 out
+add 1203 set 1 pass icmp from $cpip to any out icmptype 8
+add 1204 set 1 pass icmp from any to $cpip in icmptype 0
+
+# allow access to our DNS forwarder
+add 1300 set 1 pass udp from any to $cpip 53 in
+add 1301 set 1 pass udp from $cpip 53 to any out
+
+# allow access to our web server
+add 1302 set 1 pass tcp from any to $cpip 8000 in
+add 1303 set 1 pass tcp from $cpip 8000 to any out
+
+EOD;
+
+	if (isset($config['captiveportal']['httpslogin'])) {
+		$cprules .= <<<EOD
+add 1304 set 1 pass tcp from any to $cpip 8001 in
+add 1305 set 1 pass tcp from $cpip 8001 to any out
+
+EOD;
+	}
+	
+	$cprules .= <<<EOD
+
+# ... 10000-19899: rules per authenticated client go here...
+
+# redirect non-authenticated clients to captive portal
+add 19900 set 1 fwd 127.0.0.1,8000 tcp from any to any 80 in
+# let the responses from the captive portal web server back out
+add 19901 set 1 pass tcp from any 80 to any out
+# block everything else
+add 19902 set 1 deny all from any to any
+
+# ... 20000-29899: layer2 block rules per authenticated client go here...
+
+# pass everything else on layer2
+add 29900 set 1 pass all from any to any layer2
+
+EOD;
+
+	return $cprules;
+}
+
 /* remove clients that have been around for longer than the specified amount of time */
-/* db file structure: timestamp,clientip,clientmac,username,sessionid */
+/* db file structure: timestamp,ipfw_rule_no,clientip,clientmac,username,sessionid,password */
+/* (password is in Base64 and only saved when reauthentication is enabled) */
 function captiveportal_prune_old() {
-
+	
 	global $g, $config;
-
+	
 	/* check for expired entries */
 	if ($config['captiveportal']['timeout'])
 		$timeout = $config['captiveportal']['timeout'] * 60;
 	else
 		$timeout = 0;
-
+		
 	if ($config['captiveportal']['idletimeout'])
 		$idletimeout = $config['captiveportal']['idletimeout'] * 60;
 	else
 		$idletimeout = 0;
-
-	if (!$timeout && !$idletimeout)
+	
+	if (!$timeout && !$idletimeout && !isset($config['captiveportal']['reauthenticate']))
 		return;
-
+	
 	captiveportal_lock();
-
+	
 	/* read database */
 	$cpdb = captiveportal_read_db();
-
+	
 	$radiusservers = captiveportal_get_radius_servers();
-
-	if($idletimeout <> 0) {
-		/* launch expire table and remove entries older than $timeout */
-		mwexec("/usr/bin/nice -n20 /usr/local/sbin/expiretable -v -t {$idletimeout} captiveportal");
-	}
-
-	$after_prune = `/sbin/pfctl -t captiveportal -T show`;
-
-	/*
-	 *   loop back through and determine if expiretable removed a client.
-	 *   if we detect a client removal then update the internal db accordingly
-         */
+	
 	for ($i = 0; $i < count($cpdb); $i++) {
-
+		
 		$timedout = false;
-
-                /* hard timeout? */
-		if ((time() - $cpdb[$i][0]) >= $timeout)
-			$timedout = true;
 		
-		if(stristr($after_prune, $cpdb[$i][2]) == false)
-			$timedout= true;
-
+		/* hard timeout? */
+		if ($timeout) {
+			if ((time() - $cpdb[$i][0]) >= $timeout)
+				$timedout = true;	
+		}
+		
+		/* if an idle timeout is specified, get last activity timestamp from ipfw */
+		if (!$timedout && $idletimeout) {
+			$lastact = captiveportal_get_last_activity($cpdb[$i][1]);
+			if ($lastact && ((time() - $lastact) >= $idletimeout))
+				$timedout = true;
+		}
+		
 		if ($timedout) {
-			/* this client needs to be deleted - remove pf table item */
-			if (isset($config['captiveportal']['radacct_enable']) && isset($radiusservers[0])) {
-				RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
-									   $cpdb[$i][4], // username
-									   $cpdb[$i][5], // sessionid
-									   $cpdb[$i][0], // start time
-									   $radiusservers[0]['ipaddr'],
-									   $radiusservers[0]['acctport'],
-									   $radiusservers[0]['key'],
-									   $cpdb[$i][2]); //clientip
-				syslog(LOG_INFO,"Authenticated user $cpdb[$i][4] timed out");
-			}
-
+			captiveportal_disconnect($cpdb[$i], $radiusservers);
+			captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "TIMEOUT");
 			unset($cpdb[$i]);
 		}
+		
+		/* do periodic RADIUS reauthentication? */
+		if (!$timedout && isset($config['captiveportal']['reauthenticate']) &&
+			($radiusservers !== false)) {
+		
+			if (isset($config['captiveportal']['radacct_enable'])) {
+				if ($config['captiveportal']['reauthenticateacct'] == "stopstart") {
+					/* stop and restart accounting */
+					RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
+										   $cpdb[$i][4], // username
+										   $cpdb[$i][5], // sessionid
+										   $cpdb[$i][0], // start time
+										   $radiusservers[0]['ipaddr'],
+										   $radiusservers[0]['acctport'],
+										   $radiusservers[0]['key'],
+										   $cpdb[$i][2]); //clientip
+					exec("/sbin/ipfw zero {$cpdb[$i][1]}");
+					RADIUS_ACCOUNTING_START($cpdb[$i][4],
+											$cpdb[$i][5],
+											$radiusservers[0]['ipaddr'],
+											$radiusservers[0]['acctport'],
+											$radiusservers[0]['key'],
+											$cpdb[$i][2]);
+				} else if ($config['captiveportal']['reauthenticateacct'] == "interimupdate") {
+					RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
+										   $cpdb[$i][4], // username
+										   $cpdb[$i][5], // sessionid
+										   $cpdb[$i][0], // start time
+										   $radiusservers[0]['ipaddr'],
+										   $radiusservers[0]['acctport'],
+										   $radiusservers[0]['key'],
+										   $cpdb[$i][2], //clientip
+										   true);
+				}
+			}
+		
+			/* check this user against RADIUS again */
+			$auth_val = RADIUS_AUTHENTICATION($cpdb[$i][4],
+										  base64_decode($cpdb[$i][6]),
+							  			  $radiusservers[0]['ipaddr'],
+							  			  $radiusservers[0]['port'],
+							  			  $radiusservers[0]['key']);
+			
+			if ($auth_val == 3) {
+				captiveportal_disconnect($cpdb[$i], $radiusservers);
+				captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "RADIUS_DISCONNECT");
+				unset($cpdb[$i]);
+			}
+		}
 	}
-
+	
 	/* write database */
 	captiveportal_write_db($cpdb);
-
+	
 	captiveportal_unlock();
 }
 
-/* remove a single client */
-function captiveportal_disconnect_client($id) {
-
+/* remove a single client according to the DB entry */
+function captiveportal_disconnect($dbent, $radiusservers) {
+	
 	global $g, $config;
+	
+	/* this client needs to be deleted - remove ipfw rules */
+	if (isset($config['captiveportal']['radacct_enable']) && isset($radiusservers[0])) {
+		RADIUS_ACCOUNTING_STOP($dbent[1], // ruleno
+							   $dbent[4], // username
+							   $dbent[5], // sessionid
+							   $dbent[0], // start time
+							   $radiusservers[0]['ipaddr'],
+							   $radiusservers[0]['acctport'],
+							   $radiusservers[0]['key'],
+							   $dbent[2]); //clientip
+	}
+	
+	mwexec("/sbin/ipfw delete " . $dbent[1] . " " . ($dbent[1]+10000));
+	
+	//KEYCOM: we need to delete +40500 and +45500 as well...
+	//these are the rule numbers we use to control traffic shaping for each logged in user via captive portal
+	//we only need to remove our rules if peruserbw is turned on.
+	if (isset($config['captiveportal']['peruserbw'])) {
+		mwexec("/sbin/ipfw delete " . ($dbent[1]+40500));
+		mwexec("/sbin/ipfw delete " . ($dbent[1]+45500));
+	}
+}
 
+/* remove a single client by ipfw rule number */
+function captiveportal_disconnect_client($id) {
+	
+	global $g, $config;
+	
 	captiveportal_lock();
-
+	
 	/* read database */
 	$cpdb = captiveportal_read_db();
 	$radiusservers = captiveportal_get_radius_servers();
-
-	/* find entry */
+	
+	/* find entry */	
 	for ($i = 0; $i < count($cpdb); $i++) {
 		if ($cpdb[$i][1] == $id) {
-			/* this client needs to be deleted - remove pf table item */
-			if (isset($config['captiveportal']['radacct_enable']) && isset($radiusservers[0])) {
-				RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
-									   $cpdb[$i][4], // username
-									   $cpdb[$i][5], // sessionid
-									   $cpdb[$i][0], // start time
-									   $radiusservers[0]['ipaddr'],
-									   $radiusservers[0]['acctport'],
-									   $radiusservers[0]['key'],
-									   $cpdb[$i][2]); //clientip
-				syslog(LOG_INFO,"Authenticated user $cpdb[$i][4] disconnected");
-			}
-
-			mwexec("/sbin/pfctl -t captiveportal -T delete {$cpdb[$i][2]}");
-
+			captiveportal_disconnect($cpdb[$i], $radiusservers);
+			captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "DISCONNECT");
 			unset($cpdb[$i]);
-
 			break;
 		}
 	}
-
-
+	
 	/* write database */
 	captiveportal_write_db($cpdb);
-
+	
 	captiveportal_unlock();
 }
 
@@ -344,11 +491,11 @@ function captiveportal_disconnect_client($id) {
 function captiveportal_radius_stop_all() {
 	global $g, $config;
 
-	captiveportal_lock() ;
-	$cpdb = captiveportal_read_db() ;
-
+	captiveportal_lock();
+	$cpdb = captiveportal_read_db();
+	
 	$radiusservers = captiveportal_get_radius_servers();
-
+	
 	if (isset($radiusservers[0])) {
 		for ($i = 0; $i < count($cpdb); $i++) {
 			RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
@@ -361,40 +508,43 @@ function captiveportal_radius_stop_all() {
 								   $cpdb[$i][2]); //clientip
 		}
 	}
-	captiveportal_unlock() ;
+	captiveportal_unlock();
 }
 
 function captiveportal_passthrumac_configure() {
 	global $config, $g;
-
+	
+	captiveportal_lock();
+	
 	/* clear out passthru macs, if necessary */
-	if (file_exists("{$g['vardb_path']}/captiveportal_mac.db")) {
-		unlink("{$g['vardb_path']}/captiveportal_mac.db");
-	}
-
+	unlink_if_exists("{$g['vardb_path']}/captiveportal_mac.db");
+	
 	if (is_array($config['captiveportal']['passthrumac'])) {
-
+		
 		$fd = @fopen("{$g['vardb_path']}/captiveportal_mac.db", "w");
 		if (!$fd) {
 			printf("Error: cannot open passthru mac DB file in captiveportal_passthrumac_configure().\n");
-			return 1;
+			captiveportal_unlock();
+			return 1;		
 		}
-
+		
 		foreach ($config['captiveportal']['passthrumac'] as $macent) {
 			/* record passthru mac so it can be recognized and let thru */
 			fwrite($fd, $macent['mac'] . "\n");
 		}
-
-		fclose($fd);
+		
+		fclose($fd); 
 	}
-
+	
+	captiveportal_unlock();
+	
 	return 0;
 }
 
 function captiveportal_allowedip_configure() {
 	global $config, $g;
-
-	captiveportal_lock() ;
+	
+	captiveportal_lock();
 
 	/* clear out existing allowed ips, if necessary */
 	if (file_exists("{$g['vardb_path']}/captiveportal_ip.db")) {
@@ -402,36 +552,51 @@ function captiveportal_allowedip_configure() {
 		if ($fd) {
 			while (!feof($fd)) {
 				$line = trim(fgets($fd));
-				if($line) {
+				if ($line) {
 					list($ip,$rule) = explode(",",$line);
-					mwexec("/sbin/pfctl -t captiveportal -T delete {$ip}");
-				}
+					mwexec("/sbin/ipfw delete $rule");
+				}	
 			}
 		}
-		fclose($fd) ;
+		fclose($fd);
 		unlink("{$g['vardb_path']}/captiveportal_ip.db");
 	}
 
+	/* get next ipfw rule number */
+	if (file_exists("{$g['vardb_path']}/captiveportal.nextrule"))
+		$ruleno = trim(file_get_contents("{$g['vardb_path']}/captiveportal.nextrule"));
+	if (!$ruleno)
+		$ruleno = 10000;	/* first rule number */
+	
 	if (is_array($config['captiveportal']['allowedip'])) {
-
+		
 		$fd = @fopen("{$g['vardb_path']}/captiveportal_ip.db", "w");
 		if (!$fd) {
 			printf("Error: cannot open allowed ip DB file in captiveportal_allowedip_configure().\n");
-			captiveportal_unlock() ;
-			return 1;
+			captiveportal_unlock();
+			return 1;		
 		}
-
+		
 		foreach ($config['captiveportal']['allowedip'] as $ipent) {
+		
 			/* record allowed ip so it can be recognized and removed later */
-			fwrite($fd, $ipent['ip'] . "," . $ipent['ip'] ."\n");
-			/* insert pf table item to allow traffic */
-			mwexec("echo \"pfctl -t captiveportal -T add {$ipent['ip']} \"> /tmp/tmp");
-			mwexec("/sbin/pfctl -t captiveportal -T add {$ipent['ip']}");
-
-			$ruleno = $ip;
+			fwrite($fd, $ipent['ip'] . "," . $ruleno ."\n");
+			
+			/* insert ipfw rule to allow ip thru */
+			if ($ipent['dir'] == "from") {
+				mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from " . $ipent['ip'] . " to any in");
+				mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from any to " . $ipent['ip'] . " out");
+			} else {
+				mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from any to " . $ipent['ip'] . " in");
+				mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from " . $ipent['ip'] . " to any out");
+			}
+			
+			$ruleno++;
+			if ($ruleno > 19899)
+				$ruleno = 10000;
 		}
-
-		fclose($fd);
+		
+		fclose($fd); 
 
 		/* write next rule number */
 		$fd = @fopen("{$g['vardb_path']}/captiveportal.nextrule", "w");
@@ -440,26 +605,31 @@ function captiveportal_allowedip_configure() {
 			fclose($fd);
 		}
 	}
-
-	captiveportal_unlock() ;
+	
+	captiveportal_unlock();
 	return 0;
 }
 
-/* get last activity timestamp given pf table item */
-function captiveportal_get_last_activity($ip) {
-
-	$info = `/usr/sbin/arp -an | /usr/bin/grep $ip`;
-
-	if($info <> "") return 1;
-
+/* get last activity timestamp given ipfw rule number */
+function captiveportal_get_last_activity($ruleno) {
+	
+	exec("/sbin/ipfw -T list {$ruleno} 2>/dev/null", $ipfwoutput);
+	
+	/* in */
+	if ($ipfwoutput[0]) {
+		$ri = explode(" ", $ipfwoutput[0]);
+		if ($ri[1])
+			return $ri[1];
+	}
+	
 	return 0;
 }
 
 /* read captive portal DB into array */
 function captiveportal_read_db() {
-
+	
 	global $g;
-
+	
 	$cpdb = array();
 	$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "r");
 	if ($fd) {
@@ -467,7 +637,7 @@ function captiveportal_read_db() {
 			$line = trim(fgets($fd));
 			if ($line) {
 				$cpdb[] = explode(",", $line);
-			}
+			}	
 		}
 		fclose($fd);
 	}
@@ -476,9 +646,9 @@ function captiveportal_read_db() {
 
 /* write captive portal DB */
 function captiveportal_write_db($cpdb) {
-
+	
 	global $g;
-
+	
 	$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "w");
 	if ($fd) {
 		foreach ($cpdb as $cpent) {
@@ -490,9 +660,9 @@ function captiveportal_write_db($cpdb) {
 
 /* read RADIUS servers into array */
 function captiveportal_get_radius_servers() {
-
+	
 	global $g;
-
+	
 	if (file_exists("{$g['vardb_path']}/captiveportal_radius.db")) {
 	   	$fd = @fopen("{$g['vardb_path']}/captiveportal_radius.db","r");
 		if ($fd) {
@@ -506,22 +676,22 @@ function captiveportal_get_radius_servers() {
 				}
 			}
 			fclose($fd);
-
+			
 			return $radiusservers;
 		}
 	}
-
+	
 	return false;
 }
 
 /* lock captive portal information, decide that the lock file is stale after
    10 seconds */
 function captiveportal_lock() {
-
+	
 	global $g;
-
+	
 	$lockfile = "{$g['varrun_path']}/captiveportal.lock";
-
+	
 	$n = 0;
 	while ($n < 10) {
 		/* open the lock file in append mode to avoid race condition */
@@ -539,13 +709,23 @@ function captiveportal_lock() {
 
 /* unlock configuration file */
 function captiveportal_unlock() {
-
+	
 	global $g;
-
+	
 	$lockfile = "{$g['varrun_path']}/captiveportal.lock";
-
+	
 	if (file_exists($lockfile))
 		unlink($lockfile);
 }
 
+/* log successful captive portal authentication to syslog */
+/* part of this code from php.net */
+function captiveportal_logportalauth($user,$mac,$ip,$status) {
+	define_syslog_variables();
+	openlog("logportalauth", LOG_PID, LOG_LOCAL4);
+	// Log it
+	syslog(LOG_INFO, "$status: $user, $mac, $ip");
+	closelog();
+}
+
 ?>
author	Scott Ullrich <sullrich@pfsense.org>	2005-09-12 18:56:37 +0000
committer	Scott Ullrich <sullrich@pfsense.org>	2005-09-12 18:56:37 +0000
commit	3db19cf1b0d5950d2980692c849b8ebc608c3aea (patch)
tree	90e87880cc953d09034848b1513ba4203f0ed988 /etc/inc/captiveportal.inc
parent	d460bfdc56d5d907368e22cd5e637a5c16c2da41 (diff)
download	pfsense-3db19cf1b0d5950d2980692c849b8ebc608c3aea.zip pfsense-3db19cf1b0d5950d2980692c849b8ebc608c3aea.tar.gz