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-rw-r--r--include/linux/fanotify.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
new file mode 100644
index 000000000..3e9c56ee6
--- /dev/null
+++ b/include/linux/fanotify.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_FANOTIFY_H
+#define _LINUX_FANOTIFY_H
+
+#include <uapi/linux/fanotify.h>
+
+#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_FID_BITS (FAN_REPORT_FID | FAN_REPORT_DFID_NAME)
+
+#define FANOTIFY_INIT_FLAGS (FANOTIFY_CLASS_BITS | FANOTIFY_FID_BITS | \
+ FAN_REPORT_TID | \
+ 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 can be reported with data type FSNOTIFY_EVENT_PATH.
+ * Note that FAN_MODIFY can also be reported with data type
+ * FSNOTIFY_EVENT_INODE.
+ */
+#define FANOTIFY_PATH_EVENTS (FAN_ACCESS | FAN_MODIFY | \
+ FAN_CLOSE | FAN_OPEN | FAN_OPEN_EXEC)
+
+/*
+ * Directory entry modification events - reported only to directory
+ * where entry is modified and not to a watching parent.
+ */
+#define FANOTIFY_DIRENT_EVENTS (FAN_MOVE | FAN_CREATE | FAN_DELETE)
+
+/* Events that can only be reported with data type FSNOTIFY_EVENT_INODE */
+#define FANOTIFY_INODE_EVENTS (FANOTIFY_DIRENT_EVENTS | \
+ FAN_ATTRIB | FAN_MOVE_SELF | FAN_DELETE_SELF)
+
+/* Events that user can request to be notified on */
+#define FANOTIFY_EVENTS (FANOTIFY_PATH_EVENTS | \
+ FANOTIFY_INODE_EVENTS)
+
+/* Events that require a permission response from user */
+#define FANOTIFY_PERM_EVENTS (FAN_OPEN_PERM | FAN_ACCESS_PERM | \
+ FAN_OPEN_EXEC_PERM)
+
+/* Extra flags that may be reported with event or control handling of events */
+#define FANOTIFY_EVENT_FLAGS (FAN_EVENT_ON_CHILD | FAN_ONDIR)
+
+/* Events that may be reported to user */
+#define FANOTIFY_OUTGOING_EVENTS (FANOTIFY_EVENTS | \
+ FANOTIFY_PERM_EVENTS | \
+ FAN_Q_OVERFLOW | FAN_ONDIR)
+
+#define ALL_FANOTIFY_EVENT_BITS (FANOTIFY_OUTGOING_EVENTS | \
+ FANOTIFY_EVENT_FLAGS)
+
+/* 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 */