adding event for this rule mount launched in privileged container

events/syscall/mount_launched_in_privileged_container.go

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: Apache-2.0
+/*
+Copyright (C) 2024 The Falco Authors.
+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.
+*/
+
+package syscall
+
+import (
+	"os/exec"
+	"syscall"
+
+	"github.com/falcosecurity/event-generator/events"
+)
+
+var _ = events.Register(MountLaunchedInPrivilegedContainer)
+
+func MountLaunchedInPrivilegedContainer(h events.Helper) error {
+	if h.InContainer() {
+		cmd := exec.Command("mount", "-o")
+		cmd.SysProcAttr = &syscall.SysProcAttr{
+			Cloneflags: syscall.CLONE_NEWNS | syscall.CLONE_NEWUSER,
+		}
+		_ = cmd.Run() // This command will give a run time error, but enough to trigger the rule
+		return nil
+	}
+	return &events.ErrSkipped{
+		Reason: "'Mount Launched In Privileged Container' is applicable only to privileged containers.",
+	}
+}