Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  CRED: Introduce credential access wrappers

1 files changed, 50 insertions, 0 deletions

diff --git a/include/linux/cred.h b/include/linux/cred.h
new file mode 100644
index 00000000000..b69222cc1fd
--- /dev/null
+++ b/include/linux/cred.h
@@ -0,0 +1,50 @@
+/* Credentials management
+ *
+ * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_CRED_H
+#define _LINUX_CRED_H
+
+#define get_current_user()	(get_uid(current->user))
+
+#define task_uid(task)		((task)->uid)
+#define task_gid(task)		((task)->gid)
+#define task_euid(task)		((task)->euid)
+#define task_egid(task)		((task)->egid)
+
+#define current_uid()		(current->uid)
+#define current_gid()		(current->gid)
+#define current_euid()		(current->euid)
+#define current_egid()		(current->egid)
+#define current_suid()		(current->suid)
+#define current_sgid()		(current->sgid)
+#define current_fsuid()		(current->fsuid)
+#define current_fsgid()		(current->fsgid)
+#define current_cap()		(current->cap_effective)
+
+#define current_uid_gid(_uid, _gid)		\
+do {						\
+	*(_uid) = current->uid;			\
+	*(_gid) = current->gid;			\
+} while(0)
+
+#define current_euid_egid(_uid, _gid)		\
+do {						\
+	*(_uid) = current->euid;		\
+	*(_gid) = current->egid;		\
+} while(0)
+
+#define current_fsuid_fsgid(_uid, _gid)		\
+do {						\
+	*(_uid) = current->fsuid;		\
+	*(_gid) = current->fsgid;		\
+} while(0)
+
+#endif /* _LINUX_CRED_H */