posix_acl: uapi header split
Export the base definitions and the xattr representation of POSIX ACLs
to user space.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/uapi/linux/posix_acl.h b/include/uapi/linux/posix_acl.h
new file mode 100644
index 0000000..1037cb1
--- /dev/null
+++ b/include/uapi/linux/posix_acl.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2002 Andreas Gruenbacher <a.gruenbacher@computer.org>
+ * Copyright (C) 2016 Red Hat, Inc.
+ *
+ * This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ */
+
+#ifndef __UAPI_POSIX_ACL_H
+#define __UAPI_POSIX_ACL_H
+
+#define ACL_UNDEFINED_ID (-1)
+
+/* a_type field in acl_user_posix_entry_t */
+#define ACL_TYPE_ACCESS (0x8000)
+#define ACL_TYPE_DEFAULT (0x4000)
+
+/* e_tag entry in struct posix_acl_entry */
+#define ACL_USER_OBJ (0x01)
+#define ACL_USER (0x02)
+#define ACL_GROUP_OBJ (0x04)
+#define ACL_GROUP (0x08)
+#define ACL_MASK (0x10)
+#define ACL_OTHER (0x20)
+
+/* permissions in the e_perm field */
+#define ACL_READ (0x04)
+#define ACL_WRITE (0x02)
+#define ACL_EXECUTE (0x01)
+
+#endif /* __UAPI_POSIX_ACL_H */