Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
7053aee2 JK |
2 | #include <linux/fsnotify_backend.h> |
3 | #include <linux/path.h> | |
4 | #include <linux/slab.h> | |
5 | ||
054c636e | 6 | extern struct kmem_cache *fanotify_mark_cache; |
7053aee2 | 7 | extern struct kmem_cache *fanotify_event_cachep; |
f083441b | 8 | extern struct kmem_cache *fanotify_perm_event_cachep; |
7053aee2 | 9 | |
85816794 | 10 | /* |
f083441b JK |
11 | * Structure for normal fanotify events. It gets allocated in |
12 | * fanotify_handle_event() and freed when the information is retrieved by | |
13 | * userspace | |
85816794 | 14 | */ |
7053aee2 JK |
15 | struct fanotify_event_info { |
16 | struct fsnotify_event fse; | |
17 | /* | |
18 | * We hold ref to this path so it may be dereferenced at any point | |
19 | * during this object's lifetime | |
20 | */ | |
21 | struct path path; | |
22 | struct pid *tgid; | |
f083441b JK |
23 | }; |
24 | ||
7053aee2 | 25 | #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS |
f083441b JK |
26 | /* |
27 | * Structure for permission fanotify events. It gets allocated and freed in | |
28 | * fanotify_handle_event() since we wait there for user response. When the | |
29 | * information is retrieved by userspace the structure is moved from | |
30 | * group->notification_list to group->fanotify_data.access_list to wait for | |
31 | * user response. | |
32 | */ | |
33 | struct fanotify_perm_event_info { | |
34 | struct fanotify_event_info fae; | |
35 | int response; /* userspace answer to question */ | |
36 | int fd; /* fd we passed to userspace for this event */ | |
7053aee2 JK |
37 | }; |
38 | ||
f083441b JK |
39 | static inline struct fanotify_perm_event_info * |
40 | FANOTIFY_PE(struct fsnotify_event *fse) | |
41 | { | |
42 | return container_of(fse, struct fanotify_perm_event_info, fae.fse); | |
43 | } | |
44 | #endif | |
45 | ||
7053aee2 JK |
46 | static inline struct fanotify_event_info *FANOTIFY_E(struct fsnotify_event *fse) |
47 | { | |
48 | return container_of(fse, struct fanotify_event_info, fse); | |
49 | } | |
f083441b JK |
50 | |
51 | struct fanotify_event_info *fanotify_alloc_event(struct inode *inode, u32 mask, | |
3cd5eca8 | 52 | const struct path *path); |