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-rw-r--r--include/uapi/linux/watch_queue.h28
1 files changed, 27 insertions, 1 deletions
diff --git a/include/uapi/linux/watch_queue.h b/include/uapi/linux/watch_queue.h
index 3a5790f1f05d..c3d8320b5d3a 100644
--- a/include/uapi/linux/watch_queue.h
+++ b/include/uapi/linux/watch_queue.h
@@ -13,7 +13,8 @@
enum watch_notification_type {
WATCH_TYPE_META = 0, /* Special record */
- WATCH_TYPE__NR = 1
+ WATCH_TYPE_KEY_NOTIFY = 1, /* Key change event notification */
+ WATCH_TYPE__NR = 2
};
enum watch_meta_notification_subtype {
@@ -75,4 +76,29 @@ struct watch_notification_removal {
__u64 id; /* Type-dependent identifier */
};
+/*
+ * Type of key/keyring change notification.
+ */
+enum key_notification_subtype {
+ NOTIFY_KEY_INSTANTIATED = 0, /* Key was instantiated (aux is error code) */
+ NOTIFY_KEY_UPDATED = 1, /* Key was updated */
+ NOTIFY_KEY_LINKED = 2, /* Key (aux) was added to watched keyring */
+ NOTIFY_KEY_UNLINKED = 3, /* Key (aux) was removed from watched keyring */
+ NOTIFY_KEY_CLEARED = 4, /* Keyring was cleared */
+ NOTIFY_KEY_REVOKED = 5, /* Key was revoked */
+ NOTIFY_KEY_INVALIDATED = 6, /* Key was invalidated */
+ NOTIFY_KEY_SETATTR = 7, /* Key's attributes got changed */
+};
+
+/*
+ * Key/keyring notification record.
+ * - watch.type = WATCH_TYPE_KEY_NOTIFY
+ * - watch.subtype = enum key_notification_type
+ */
+struct key_notification {
+ struct watch_notification watch;
+ __u32 key_id; /* The key/keyring affected */
+ __u32 aux; /* Per-type auxiliary data */
+};
+
#endif /* _UAPI_LINUX_WATCH_QUEUE_H */