Merge tag 'keys-20140314' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into next

1 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/key.h b/include/linux/key.h
index 80d677483e31..cd0abb8c9c33 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -309,6 +309,17 @@ static inline key_serial_t key_serial(const struct key *key)
 
 extern void key_set_timeout(struct key *, unsigned);
 
+/*
+ * The permissions required on a key that we're looking up.
+ */
+#define KEY_NEED_VIEW   0x01    /* Require permission to view attributes */
+#define KEY_NEED_READ   0x02    /* Require permission to read content */
+#define KEY_NEED_WRITE  0x04    /* Require permission to update / modify */
+#define KEY_NEED_SEARCH 0x08    /* Require permission to search (keyring) or find (key) */
+#define KEY_NEED_LINK   0x10    /* Require permission to link */
+#define KEY_NEED_SETATTR 0x20   /* Require permission to change attributes */
+#define KEY_NEED_ALL    0x3f    /* All the above permissions */
+
 /**
  * key_is_instantiated - Determine if a key has been positively instantiated
  * @key: The key to check.