1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef _UAPI_LINUX_WATCH_QUEUE_H
20 #define _UAPI_LINUX_WATCH_QUEUE_H
21 #include <linux/types.h>
22 #include <linux/fcntl.h>
23 #include <linux/ioctl.h>
24 #define O_NOTIFICATION_PIPE O_EXCL
25 #define IOC_WATCH_QUEUE_SET_SIZE _IO('W', 0x60)
26 #define IOC_WATCH_QUEUE_SET_FILTER _IO('W', 0x61)
27 enum watch_notification_type {
28   WATCH_TYPE_META = 0,
29   WATCH_TYPE_KEY_NOTIFY = 1,
30   WATCH_TYPE__NR = 2
31 };
32 enum watch_meta_notification_subtype {
33   WATCH_META_REMOVAL_NOTIFICATION = 0,
34   WATCH_META_LOSS_NOTIFICATION = 1,
35 };
36 struct watch_notification {
37   __u32 type : 24;
38   __u32 subtype : 8;
39   __u32 info;
40 #define WATCH_INFO_LENGTH 0x0000007f
41 #define WATCH_INFO_LENGTH__SHIFT 0
42 #define WATCH_INFO_ID 0x0000ff00
43 #define WATCH_INFO_ID__SHIFT 8
44 #define WATCH_INFO_TYPE_INFO 0xffff0000
45 #define WATCH_INFO_TYPE_INFO__SHIFT 16
46 #define WATCH_INFO_FLAG_0 0x00010000
47 #define WATCH_INFO_FLAG_1 0x00020000
48 #define WATCH_INFO_FLAG_2 0x00040000
49 #define WATCH_INFO_FLAG_3 0x00080000
50 #define WATCH_INFO_FLAG_4 0x00100000
51 #define WATCH_INFO_FLAG_5 0x00200000
52 #define WATCH_INFO_FLAG_6 0x00400000
53 #define WATCH_INFO_FLAG_7 0x00800000
54 };
55 struct watch_notification_type_filter {
56   __u32 type;
57   __u32 info_filter;
58   __u32 info_mask;
59   __u32 subtype_filter[8];
60 };
61 struct watch_notification_filter {
62   __u32 nr_filters;
63   __u32 __reserved;
64   struct watch_notification_type_filter filters[];
65 };
66 struct watch_notification_removal {
67   struct watch_notification watch;
68   __u64 id;
69 };
70 enum key_notification_subtype {
71   NOTIFY_KEY_INSTANTIATED = 0,
72   NOTIFY_KEY_UPDATED = 1,
73   NOTIFY_KEY_LINKED = 2,
74   NOTIFY_KEY_UNLINKED = 3,
75   NOTIFY_KEY_CLEARED = 4,
76   NOTIFY_KEY_REVOKED = 5,
77   NOTIFY_KEY_INVALIDATED = 6,
78   NOTIFY_KEY_SETATTR = 7,
79 };
80 struct key_notification {
81   struct watch_notification watch;
82   __u32 key_id;
83   __u32 aux;
84 };
85 #endif
86