1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_FANOTIFY_H 3 #define _LINUX_FANOTIFY_H 4 5 #include <uapi/linux/fanotify.h> 6 7 #define FAN_GROUP_FLAG(group, flag) \ 8 ((group)->fanotify_data.flags & (flag)) 9 10 /* 11 * Flags allowed to be passed from/to userspace. 12 * 13 * We intentionally do not add new bits to the old FAN_ALL_* constants, because 14 * they are uapi exposed constants. If there are programs out there using 15 * these constant, the programs may break if re-compiled with new uapi headers 16 * and then run on an old kernel. 17 */ 18 #define FANOTIFY_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \ 19 FAN_CLASS_PRE_CONTENT) 20 21 #define FANOTIFY_INIT_FLAGS (FANOTIFY_CLASS_BITS | \ 22 FAN_REPORT_TID | FAN_REPORT_FID | \ 23 FAN_CLOEXEC | FAN_NONBLOCK | \ 24 FAN_UNLIMITED_QUEUE | FAN_UNLIMITED_MARKS) 25 26 #define FANOTIFY_MARK_TYPE_BITS (FAN_MARK_INODE | FAN_MARK_MOUNT | \ 27 FAN_MARK_FILESYSTEM) 28 29 #define FANOTIFY_MARK_FLAGS (FANOTIFY_MARK_TYPE_BITS | \ 30 FAN_MARK_ADD | \ 31 FAN_MARK_REMOVE | \ 32 FAN_MARK_DONT_FOLLOW | \ 33 FAN_MARK_ONLYDIR | \ 34 FAN_MARK_IGNORED_MASK | \ 35 FAN_MARK_IGNORED_SURV_MODIFY | \ 36 FAN_MARK_FLUSH) 37 38 /* 39 * Events that can be reported with data type FSNOTIFY_EVENT_PATH. 40 * Note that FAN_MODIFY can also be reported with data type 41 * FSNOTIFY_EVENT_INODE. 42 */ 43 #define FANOTIFY_PATH_EVENTS (FAN_ACCESS | FAN_MODIFY | \ 44 FAN_CLOSE | FAN_OPEN | FAN_OPEN_EXEC) 45 46 /* 47 * Directory entry modification events - reported only to directory 48 * where entry is modified and not to a watching parent. 49 */ 50 #define FANOTIFY_DIRENT_EVENTS (FAN_MOVE | FAN_CREATE | FAN_DELETE) 51 52 /* Events that can only be reported with data type FSNOTIFY_EVENT_INODE */ 53 #define FANOTIFY_INODE_EVENTS (FANOTIFY_DIRENT_EVENTS | \ 54 FAN_ATTRIB | FAN_MOVE_SELF | FAN_DELETE_SELF) 55 56 /* Events that user can request to be notified on */ 57 #define FANOTIFY_EVENTS (FANOTIFY_PATH_EVENTS | \ 58 FANOTIFY_INODE_EVENTS) 59 60 /* Events that require a permission response from user */ 61 #define FANOTIFY_PERM_EVENTS (FAN_OPEN_PERM | FAN_ACCESS_PERM | \ 62 FAN_OPEN_EXEC_PERM) 63 64 /* Extra flags that may be reported with event or control handling of events */ 65 #define FANOTIFY_EVENT_FLAGS (FAN_EVENT_ON_CHILD | FAN_ONDIR) 66 67 /* Events that may be reported to user */ 68 #define FANOTIFY_OUTGOING_EVENTS (FANOTIFY_EVENTS | \ 69 FANOTIFY_PERM_EVENTS | \ 70 FAN_Q_OVERFLOW | FAN_ONDIR) 71 72 #define ALL_FANOTIFY_EVENT_BITS (FANOTIFY_OUTGOING_EVENTS | \ 73 FANOTIFY_EVENT_FLAGS) 74 75 /* Do not use these old uapi constants internally */ 76 #undef FAN_ALL_CLASS_BITS 77 #undef FAN_ALL_INIT_FLAGS 78 #undef FAN_ALL_MARK_FLAGS 79 #undef FAN_ALL_EVENTS 80 #undef FAN_ALL_PERM_EVENTS 81 #undef FAN_ALL_OUTGOING_EVENTS 82 83 #endif /* _LINUX_FANOTIFY_H */ 84