/* * 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.
*/
/* Group classes where permission events are allowed */ #define FANOTIFY_PERM_CLASSES (FAN_CLASS_CONTENT | \
FAN_CLASS_PRE_CONTENT)
/* * fanotify_init() flags that require CAP_SYS_ADMIN. * We do not allow unprivileged groups to request permission events. * We do not allow unprivileged groups to get other process pid in events. * We do not allow unprivileged groups to use unlimited resources.
*/ #define FANOTIFY_ADMIN_INIT_FLAGS (FANOTIFY_PERM_CLASSES | \
FAN_REPORT_TID | \
FAN_REPORT_PIDFD | \
FAN_REPORT_FD_ERROR | \
FAN_UNLIMITED_QUEUE | \
FAN_UNLIMITED_MARKS)
/* * fanotify_init() flags that are allowed for user without CAP_SYS_ADMIN. * FAN_CLASS_NOTIF is the only class we allow for unprivileged group. * We do not allow unprivileged groups to get file descriptors in events, * so one of the flags for reporting file handles is required.
*/ #define FANOTIFY_USER_INIT_FLAGS (FAN_CLASS_NOTIF | \
FANOTIFY_FID_BITS | FAN_REPORT_MNT | \
FAN_CLOEXEC | FAN_NONBLOCK)
/* * 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 | \
FAN_RENAME)
/* Content events can be used to inspect file content */ #define FANOTIFY_CONTENT_PERM_EVENTS (FAN_OPEN_PERM | FAN_OPEN_EXEC_PERM | \
FAN_ACCESS_PERM) /* Pre-content events can be used to fill file content */ #define FANOTIFY_PRE_CONTENT_EVENTS (FAN_PRE_ACCESS)
/* Events that require a permission response from user */ #define FANOTIFY_PERM_EVENTS (FANOTIFY_CONTENT_PERM_EVENTS | \
FANOTIFY_PRE_CONTENT_EVENTS)
/* Events that can be reported with event->fd */ #define FANOTIFY_FD_EVENTS (FANOTIFY_PATH_EVENTS | FANOTIFY_PERM_EVENTS)
/* 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 can only be reported with data type FSNOTIFY_EVENT_ERROR */ #define FANOTIFY_ERROR_EVENTS (FAN_FS_ERROR)
/* Events that user can request to be notified on */ #define FANOTIFY_EVENTS (FANOTIFY_PATH_EVENTS | \
FANOTIFY_INODE_EVENTS | \
FANOTIFY_ERROR_EVENTS | \
FANOTIFY_MOUNT_EVENTS)
/* 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)
/* Events and flags relevant only for directories */ #define FANOTIFY_DIRONLY_EVENT_BITS (FANOTIFY_DIRENT_EVENTS | \
FAN_EVENT_ON_CHILD | FAN_ONDIR)
/* 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 */
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