1 files changed, 38 insertions, 0 deletions
diff --git a/lib/ohai/plugins/linux/livepatch.rb b/lib/ohai/plugins/linux/livepatch.rb
new file mode 100644
index 00000000..a8e33169
--- /dev/null
+++ b/lib/ohai/plugins/linux/livepatch.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+#
+# Author:: Song Liu <song@kernel.org>
+# Copyright:: Copyright (c) 2021 Facebook, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+Ohai.plugin(:Livepatch) do
+  provides "livepatch"
+
+  collect_data(:linux) do
+    if file_exist?("/sys/kernel/livepatch")
+      patches = Mash.new
+      dir_glob("/sys/kernel/livepatch/*").each do |livepatch_dir|
+        dir = File.basename(livepatch_dir)
+        patches[dir] = Mash.new
+        %w{enabled transition}.each do |check|
+          if file_exist?("/sys/kernel/livepatch/#{dir}/#{check}")
+            file_open("/sys/kernel/livepatch/#{dir}/#{check}") { |f| patches[dir][check] = f.read_nonblock(1024).strip }
+          end
+        end
+        livepatch patches
+      end
+    end
+  end
+end