Fix Bug 3269 system gateway-address conflicts with static default

- route is only deleted from route table if both gateway-address and
  the static route equivalent to setting a gateway-address are not set

1 files changed, 71 insertions, 0 deletions

diff --git a/scripts/vyatta-gateway-static_route-check.pl b/scripts/vyatta-gateway-static_route-check.pl
new file mode 100644
index 00000000..b90fca92
--- /dev/null
+++ b/scripts/vyatta-gateway-static_route-check.pl
@@ -0,0 +1,71 @@
+#!/usr/bin/perl
+# Module: vyatta-gateway-static_route-check.pl 
+#
+# **** License ****
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# A copy of the GNU General Public License is available as
+# `/usr/share/common-licenses/GPL' in the Debian GNU/Linux distribution
+# or on the World Wide Web at `http://www.gnu.org/copyleft/gpl.html'.
+# You can also obtain it by writing to the Free Software Foundation,
+# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
+# This code was originally developed by Vyatta, Inc.
+# Portions created by Vyatta are Copyright (C) 2008 Vyatta, Inc.
+# All Rights Reserved.
+#
+# Author: Mohit Mehta
+# Date: June 2008
+# Description: Script to check if any one of the 'static route' is equivalent to the 'system gateway-address'
+#              if yes, then don't remove route from routing table unless both are unset
+# **** End License ****
+
+use strict;
+use warnings;
+use lib "/opt/vyatta/share/perl5/";
+
+use NetAddr::IP;
+use VyattaConfig;
+
+
+if (($#ARGV == 1) && ($ARGV[0] eq '0.0.0.0/0')) {
+    # check when deleting static-route
+    my $vcCHECK_GATEWAY = new VyattaConfig();
+    $vcCHECK_GATEWAY->setLevel('system');
+    if ( $vcCHECK_GATEWAY->exists('.') ) {
+     my $gateway_ip = $vcCHECK_GATEWAY->returnValue('gateway-address');
+     if ( defined($gateway_ip) && $gateway_ip eq $ARGV[1] ) {
+        exit 1;
+     }
+    }
+    
+} elsif ($#ARGV == 0) {
+    # check when deleting gateway-address                
+    my $vcCHECK_STATIC_ROUTE = new VyattaConfig();
+    $vcCHECK_STATIC_ROUTE->setLevel('protocols static');
+    if ( $vcCHECK_STATIC_ROUTE->exists('.') ) {
+     my @routes = $vcCHECK_STATIC_ROUTE->listNodes("route");
+     if (@routes > 0) {
+      foreach my $route (@routes) {
+       if ($route eq '0.0.0.0/0') {
+         my @next_hops = $vcCHECK_STATIC_ROUTE->listNodes("route $route next-hop");
+          foreach my $next_hop (@next_hops) {
+           if ($next_hop eq $ARGV[0]) {
+            exit 1;
+           }
+          }
+       }
+      } 
+     }
+    }
+}
+ 
+exit 0;