1 files changed, 21 insertions, 0 deletions
diff --git a/security/sandbox/linux/SandboxUtil.h b/security/sandbox/linux/SandboxUtil.h
new file mode 100644
index 000000000..7bd84f798
--- /dev/null
+++ b/security/sandbox/linux/SandboxUtil.h
@@ -0,0 +1,21 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_SandboxUtil_h
+#define mozilla_SandboxUtil_h
+
+namespace mozilla {
+
+bool IsSingleThreaded();
+
+// Unshare the user namespace, and set up id mappings so that the
+// process's subjective uid and gid are unchanged.  This will always
+// fail if the process is multithreaded.
+bool UnshareUserNamespace();
+
+} // namespace mozilla
+
+#endif // mozilla_SandboxUtil_h