added facter facts to show netmask in cidr notation for each interface

1 files changed, 22 insertions, 0 deletions

diff --git a/lib/facter/netmask_cidr_interface.rb b/lib/facter/netmask_cidr_interface.rb
new file mode 100644
index 0000000..d628d08
--- /dev/null
+++ b/lib/facter/netmask_cidr_interface.rb
@@ -0,0 +1,22 @@
+# adds netmask facts for each interface in cidr notation
+# i.e.:
+# ...
+# netmask_cidr_eth2 => 24
+# netmask_cidr_lo => 8
+# netmask_cidr_tun0 => 32
+# netmask_cidr_virbr0 => 24
+# ...
+
+require 'facter/util/ip'
+
+Facter::Util::IP.get_interfaces.each do |interface|
+  netmask = Facter.value("netmask_#{interface}")
+  if netmask != nil
+    Facter.add("netmask_cidr_" + interface ) do
+      setcode do
+        cidr_netmask=IPAddr.new(netmask).to_i.to_s(2).count("1")
+        cidr_netmask
+      end
+    end
+  end
+end