From 2feb85af000bcf0ba4f9777b0f41c5dc7286b202 Mon Sep 17 00:00:00 2001
From: Seth Mos <seth.mos@dds.nl>
Date: Fri, 26 Aug 2011 13:12:08 +0200
Subject: Add a interface_has_gatewayv6() function to determine if a interface
 has a IPv6 gateway. Implement that function return_gateways_array() to
 prevent ghost entries

---
 etc/inc/gwlb.inc       |  7 +++----
 etc/inc/interfaces.inc | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/etc/inc/gwlb.inc b/etc/inc/gwlb.inc
index 8ed9529..95b4711 100644
--- a/etc/inc/gwlb.inc
+++ b/etc/inc/gwlb.inc
@@ -371,7 +371,7 @@ function return_gateways_array($disabled = false) {
 
 	/* Process/add dynamic v6 gateways. */
 	foreach($iflist as $ifname => $friendly ) {
-		if(! interface_has_gateway($ifname))
+		if(! interface_has_gatewayv6($ifname))
 			continue;
 
 		if (empty($config['interfaces'][$ifname]))
@@ -412,7 +412,6 @@ function return_gateways_array($disabled = false) {
 		$gateway['descr'] = "Interface {$friendly} Dynamic Gateway";
 		$gateways_arr[$gateway['name']] = $gateway;
 	}
-
 	return($gateways_arr);
 }
 
@@ -623,7 +622,7 @@ function get_interface_gateway($interface, &$dynamic = false) {
 	}
 
 	// for dynamic interfaces we handle them through the $interface_router file.
-	if (!is_ipaddr($gw) && !is_ipaddr($gwcfg['ipaddr'])) {
+	if (!is_ipaddrv4($gw) && !is_ipaddrv4($gwcfg['ipaddr'])) {
 		$realif = get_real_interface($interface);
 		if (file_exists("{$g['tmp_path']}/{$realif}_router")) {
 				$gw = trim(file_get_contents("{$g['tmp_path']}/{$realif}_router"), " \n");
@@ -653,7 +652,7 @@ function get_interface_gateway_v6($interface, &$dynamic = false) {
 	}
 
 	// for dynamic interfaces we handle them through the $interface_router file.
-	if (!is_ipaddrv6($gw) && !is_ipaddr($gwcfg['ipaddrv6'])) {
+	if (!is_ipaddrv6($gw) && !is_ipaddrv6($gwcfg['ipaddrv6'])) {
 			$realif = get_real_interface($interface);
 			if (file_exists("{$g['tmp_path']}/{$realif}_routerv6")) {
 				$gw = trim(file_get_contents("{$g['tmp_path']}/{$realif}_routerv6"), " \n");
diff --git a/etc/inc/interfaces.inc b/etc/inc/interfaces.inc
index 7d0d021..344d3aa 100644
--- a/etc/inc/interfaces.inc
+++ b/etc/inc/interfaces.inc
@@ -3871,6 +3871,28 @@ function interface_has_gateway($friendly) {
 	return false;
 }
 
+/* return true if interface has a gateway */
+function interface_has_gatewayv6($friendly) {
+	global $config;
+
+	if (!empty($config['interfaces'][$friendly])) {
+		$ifname = &$config['interfaces'][$friendly];
+		switch ($ifname['ipaddrv6']) {
+			case "dhcp6":
+				return true;
+			break;
+			default:
+				if (substr($ifname['if'], 0, 5) ==  "ovpnc")
+					return true;
+				if (!empty($ifname['gatewayv6']))
+					return true;
+			break;
+		}
+	}
+
+	return false;
+}
+
 /****f* interfaces/is_altq_capable
  * NAME
  *   is_altq_capable - Test if interface is capable of using ALTQ
-- 
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