1 files changed, 43 insertions, 0 deletions
diff --git a/lib/custodian/util/bytemark.rb b/lib/custodian/util/bytemark.rb
new file mode 100644
index 0000000..8143c4c
--- /dev/null
+++ b/lib/custodian/util/bytemark.rb
@@ -0,0 +1,43 @@
+
+
+require 'ipaddr'
+
+
+
+#
+# This class contains some Bytemark-specific tests/code.
+#
+module Custodian
+
+  module Util
+
+    class Bytemark
+
+
+      #
+      # The currently allocated IP-ranges which belong to Bytemark.
+      #
+      # These are used to test if an alert refers to a machine outwith our
+      # network.
+      #
+      BYTEMARK_RANGES = %w(80.68.80.0/20 89.16.160.0/19 212.110.160.0/19 46.43.0.0/18 91.223.58.0/24 213.138.96.0/19 5.153.224.0/21 2001:41c8::/32).collect{|i| IPAddr.new(i)}
+
+
+      #
+      # Is the named target inside the Bytemark IP-range?
+      #
+      def Bytemark.inside?( target )
+        inside = false
+
+        if ( BYTEMARK_RANGES.any?{|range| range.include?(IPAddr.new(target))} )
+          inside = true
+        end
+
+        inside
+      end
+
+
+
+    end
+  end
+end