#include <linux/inotify.h>
#include <linux/fsnotify_backend.h>
#include <linux/audit.h>
+#include <linux/slab.h>
/*
* fsnotify_d_instantiate - instantiate a dentry for inode
static inline void fsnotify_d_instantiate(struct dentry *entry,
struct inode *inode)
{
+ __fsnotify_d_instantiate(entry, inode);
+
inotify_d_instantiate(entry, inode);
}
+/* Notify this dentry's parent about a child's events. */
+static inline void fsnotify_parent(struct dentry *dentry, __u32 mask)
+{
+ __fsnotify_parent(dentry, mask);
+
+ inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
+}
+
/*
* fsnotify_d_move - entry has been moved
* Called with dcache_lock and entry->d_lock held.
*/
static inline void fsnotify_d_move(struct dentry *entry)
{
+ /*
+ * On move we need to update entry->d_flags to indicate if the new parent
+ * cares about events from this entry.
+ */
+ __fsnotify_update_dcache_flags(entry);
+
inotify_d_move(entry);
}
{
inotify_inode_queue_event(inode, IN_ATTRIB, 0, NULL, NULL);
- fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE);
+ fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
/*
* fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
*/
static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
- const char *old_name, const char *new_name,
+ const char *old_name,
int isdir, struct inode *target, struct dentry *moved)
{
struct inode *source = moved->d_inode;
- u32 cookie = inotify_get_cookie();
- __u32 old_dir_mask = 0;
- __u32 new_dir_mask = 0;
-
- if (old_dir == new_dir) {
- inode_dir_notify(old_dir, DN_RENAME);
- old_dir_mask = FS_DN_RENAME;
- } else {
- inode_dir_notify(old_dir, DN_DELETE);
- old_dir_mask = FS_DELETE;
- inode_dir_notify(new_dir, DN_CREATE);
- new_dir_mask = FS_CREATE;
- }
+ u32 in_cookie = inotify_get_cookie();
+ u32 fs_cookie = fsnotify_get_cookie();
+ __u32 old_dir_mask = (FS_EVENT_ON_CHILD | FS_MOVED_FROM);
+ __u32 new_dir_mask = (FS_EVENT_ON_CHILD | FS_MOVED_TO);
+ const char *new_name = moved->d_name.name;
+
+ if (old_dir == new_dir)
+ old_dir_mask |= FS_DN_RENAME;
if (isdir) {
isdir = IN_ISDIR;
new_dir_mask |= FS_IN_ISDIR;
}
- old_dir_mask |= FS_MOVED_FROM;
- new_dir_mask |= FS_MOVED_TO;
-
- inotify_inode_queue_event(old_dir, IN_MOVED_FROM|isdir,cookie,old_name,
+ inotify_inode_queue_event(old_dir, IN_MOVED_FROM|isdir, in_cookie, old_name,
source);
- inotify_inode_queue_event(new_dir, IN_MOVED_TO|isdir, cookie, new_name,
+ inotify_inode_queue_event(new_dir, IN_MOVED_TO|isdir, in_cookie, new_name,
source);
- fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE);
- fsnotify(new_dir, new_dir_mask, new_dir, FSNOTIFY_EVENT_INODE);
+ fsnotify(old_dir, old_dir_mask, old_dir, FSNOTIFY_EVENT_INODE, old_name, fs_cookie);
+ fsnotify(new_dir, new_dir_mask, new_dir, FSNOTIFY_EVENT_INODE, new_name, fs_cookie);
if (target) {
inotify_inode_queue_event(target, IN_DELETE_SELF, 0, NULL, NULL);
if (source) {
inotify_inode_queue_event(source, IN_MOVE_SELF, 0, NULL, NULL);
- fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE);
+ fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
- audit_inode_child(new_name, moved, new_dir);
+ audit_inode_child(moved, new_dir);
+}
+
+/*
+ * fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed
+ */
+static inline void fsnotify_inode_delete(struct inode *inode)
+{
+ __fsnotify_inode_delete(inode);
}
/*
if (isdir)
mask |= FS_IN_ISDIR;
- dnotify_parent(dentry, DN_DELETE);
- inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
+
+ fsnotify_parent(dentry, mask);
}
/*
inotify_inode_queue_event(inode, IN_DELETE_SELF, 0, NULL, NULL);
inotify_inode_is_dead(inode);
- fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE);
+ fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
+ __fsnotify_inode_delete(inode);
}
/*
*/
static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
{
- inode_dir_notify(inode, DN_CREATE);
inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name,
dentry->d_inode);
- audit_inode_child(dentry->d_name.name, dentry, inode);
+ audit_inode_child(dentry, inode);
- fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE);
+ fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0);
}
/*
*/
static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct dentry *new_dentry)
{
- inode_dir_notify(dir, DN_CREATE);
inotify_inode_queue_event(dir, IN_CREATE, 0, new_dentry->d_name.name,
inode);
fsnotify_link_count(inode);
- audit_inode_child(new_dentry->d_name.name, new_dentry, dir);
+ audit_inode_child(new_dentry, dir);
- fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE);
+ fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, new_dentry->d_name.name, 0);
}
/*
__u32 mask = (FS_CREATE | FS_IN_ISDIR);
struct inode *d_inode = dentry->d_inode;
- inode_dir_notify(inode, DN_CREATE);
inotify_inode_queue_event(inode, mask, 0, dentry->d_name.name, d_inode);
- audit_inode_child(dentry->d_name.name, dentry, inode);
+ audit_inode_child(dentry, inode);
- fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE);
+ fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE, dentry->d_name.name, 0);
}
/*
if (S_ISDIR(inode->i_mode))
mask |= FS_IN_ISDIR;
- dnotify_parent(dentry, DN_ACCESS);
- inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
- fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
+ fsnotify_parent(dentry, mask);
+ fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
/*
if (S_ISDIR(inode->i_mode))
mask |= FS_IN_ISDIR;
- dnotify_parent(dentry, DN_MODIFY);
- inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
- fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
+ fsnotify_parent(dentry, mask);
+ fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
/*
if (S_ISDIR(inode->i_mode))
mask |= FS_IN_ISDIR;
- inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
- fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
+ fsnotify_parent(dentry, mask);
+ fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
/*
{
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
- const char *name = dentry->d_name.name;
fmode_t mode = file->f_mode;
__u32 mask = (mode & FMODE_WRITE) ? FS_CLOSE_WRITE : FS_CLOSE_NOWRITE;
if (S_ISDIR(inode->i_mode))
mask |= FS_IN_ISDIR;
- inotify_dentry_parent_queue_event(dentry, mask, 0, name);
inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
- fsnotify(inode, mask, file, FSNOTIFY_EVENT_FILE);
+ fsnotify_parent(dentry, mask);
+ fsnotify(inode, mask, file, FSNOTIFY_EVENT_FILE, NULL, 0);
}
/*
if (S_ISDIR(inode->i_mode))
mask |= FS_IN_ISDIR;
- inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
- fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE);
+ fsnotify_parent(dentry, mask);
+ fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
/*
static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
{
struct inode *inode = dentry->d_inode;
- int dn_mask = 0;
- __u32 in_mask = 0;
+ __u32 mask = 0;
+
+ if (ia_valid & ATTR_UID)
+ mask |= FS_ATTRIB;
+ if (ia_valid & ATTR_GID)
+ mask |= FS_ATTRIB;
+ if (ia_valid & ATTR_SIZE)
+ mask |= FS_MODIFY;
- if (ia_valid & ATTR_UID) {
- in_mask |= FS_ATTRIB;
- dn_mask |= DN_ATTRIB;
- }
- if (ia_valid & ATTR_GID) {
- in_mask |= FS_ATTRIB;
- dn_mask |= DN_ATTRIB;
- }
- if (ia_valid & ATTR_SIZE) {
- in_mask |= FS_MODIFY;
- dn_mask |= DN_MODIFY;
- }
/* both times implies a utime(s) call */
if ((ia_valid & (ATTR_ATIME | ATTR_MTIME)) == (ATTR_ATIME | ATTR_MTIME))
- {
- in_mask |= FS_ATTRIB;
- dn_mask |= DN_ATTRIB;
- } else if (ia_valid & ATTR_ATIME) {
- in_mask |= FS_ACCESS;
- dn_mask |= DN_ACCESS;
- } else if (ia_valid & ATTR_MTIME) {
- in_mask |= FS_MODIFY;
- dn_mask |= DN_MODIFY;
- }
- if (ia_valid & ATTR_MODE) {
- in_mask |= FS_ATTRIB;
- dn_mask |= DN_ATTRIB;
- }
+ mask |= FS_ATTRIB;
+ else if (ia_valid & ATTR_ATIME)
+ mask |= FS_ACCESS;
+ else if (ia_valid & ATTR_MTIME)
+ mask |= FS_MODIFY;
+
+ if (ia_valid & ATTR_MODE)
+ mask |= FS_ATTRIB;
- if (dn_mask)
- dnotify_parent(dentry, dn_mask);
- if (in_mask) {
+ if (mask) {
if (S_ISDIR(inode->i_mode))
- in_mask |= FS_IN_ISDIR;
- inotify_inode_queue_event(inode, in_mask, 0, NULL, NULL);
- inotify_dentry_parent_queue_event(dentry, in_mask, 0,
- dentry->d_name.name);
- fsnotify(inode, in_mask, inode, FSNOTIFY_EVENT_INODE);
+ mask |= FS_IN_ISDIR;
+ inotify_inode_queue_event(inode, mask, 0, NULL, NULL);
+
+ fsnotify_parent(dentry, mask);
+ fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
}
}