fanotify: deprecate uapi FAN_ALL_* constants

[linux-2.6-microblaze.git] / include / linux / fanotify.h

diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index 096c96f..4519b09 100644 (file)
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -4,6 +4,54 @@
 
 #include <uapi/linux/fanotify.h>
 
-/* not valid from userspace, only kernel internal */
-#define FAN_MARK_ONDIR         0x00000100
+#define FAN_GROUP_FLAG(group, flag) \
+       ((group)->fanotify_data.flags & (flag))
+
+/*
+ * Flags allowed to be passed from/to userspace.
+ *
+ * We intentionally do not add new bits to the old FAN_ALL_* constants, because
+ * they are uapi exposed constants. If there are programs out there using
+ * these constant, the programs may break if re-compiled with new uapi headers
+ * and then run on an old kernel.
+ */
+#define FANOTIFY_CLASS_BITS    (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \
+                                FAN_CLASS_PRE_CONTENT)
+
+#define FANOTIFY_INIT_FLAGS    (FANOTIFY_CLASS_BITS | \
+                                FAN_CLOEXEC | FAN_NONBLOCK | \
+                                FAN_UNLIMITED_QUEUE | FAN_UNLIMITED_MARKS)
+
+#define FANOTIFY_MARK_TYPE_BITS        (FAN_MARK_INODE | FAN_MARK_MOUNT | \
+                                FAN_MARK_FILESYSTEM)
+
+#define FANOTIFY_MARK_FLAGS    (FANOTIFY_MARK_TYPE_BITS | \
+                                FAN_MARK_ADD | \
+                                FAN_MARK_REMOVE | \
+                                FAN_MARK_DONT_FOLLOW | \
+                                FAN_MARK_ONLYDIR | \
+                                FAN_MARK_IGNORED_MASK | \
+                                FAN_MARK_IGNORED_SURV_MODIFY | \
+                                FAN_MARK_FLUSH)
+
+/* Events that user can request to be notified on */
+#define FANOTIFY_EVENTS                (FAN_ACCESS | FAN_MODIFY | \
+                                FAN_CLOSE | FAN_OPEN)
+
+/* Events that require a permission response from user */
+#define FANOTIFY_PERM_EVENTS   (FAN_OPEN_PERM | FAN_ACCESS_PERM)
+
+/* Events that may be reported to user */
+#define FANOTIFY_OUTGOING_EVENTS       (FANOTIFY_EVENTS | \
+                                        FANOTIFY_PERM_EVENTS | \
+                                        FAN_Q_OVERFLOW)
+
+/* Do not use these old uapi constants internally */
+#undef FAN_ALL_CLASS_BITS
+#undef FAN_ALL_INIT_FLAGS
+#undef FAN_ALL_MARK_FLAGS
+#undef FAN_ALL_EVENTS
+#undef FAN_ALL_PERM_EVENTS
+#undef FAN_ALL_OUTGOING_EVENTS
+
 #endif /* _LINUX_FANOTIFY_H */