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