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-rw-r--r--include/linux/fsnotify.h115
1 files changed, 80 insertions, 35 deletions
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 00fbd5b245c9..6c9ebefdac8e 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -13,6 +13,7 @@
#include <linux/dnotify.h>
#include <linux/inotify.h>
+#include <linux/fsnotify_backend.h>
#include <linux/audit.h>
/*
@@ -35,6 +36,16 @@ static inline void fsnotify_d_move(struct dentry *entry)
}
/*
+ * fsnotify_link_count - inode's link count changed
+ */
+static inline void fsnotify_link_count(struct inode *inode)
+{
+ inotify_inode_queue_event(inode, IN_ATTRIB, 0, NULL, NULL);
+
+ fsnotify(inode, FS_ATTRIB, inode, FSNOTIFY_EVENT_INODE);
+}
+
+/*
* 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,
@@ -43,28 +54,47 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
{
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)
+ if (old_dir == new_dir) {
inode_dir_notify(old_dir, DN_RENAME);
- else {
+ 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;
}
- if (isdir)
+ if (isdir) {
isdir = IN_ISDIR;
+ old_dir_mask |= FS_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,
source);
inotify_inode_queue_event(new_dir, IN_MOVED_TO|isdir, 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);
+
if (target) {
inotify_inode_queue_event(target, IN_DELETE_SELF, 0, NULL, NULL);
inotify_inode_is_dead(target);
+
+ /* this is really a link_count change not a removal */
+ fsnotify_link_count(target);
}
if (source) {
inotify_inode_queue_event(source, IN_MOVE_SELF, 0, NULL, NULL);
+ fsnotify(source, FS_MOVE_SELF, moved->d_inode, FSNOTIFY_EVENT_INODE);
}
audit_inode_child(new_name, moved, new_dir);
}
@@ -74,10 +104,12 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
*/
static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
{
+ __u32 mask = FS_DELETE;
+
if (isdir)
- isdir = IN_ISDIR;
+ mask |= FS_IN_ISDIR;
dnotify_parent(dentry, DN_DELETE);
- inotify_dentry_parent_queue_event(dentry, IN_DELETE|isdir, 0, dentry->d_name.name);
+ inotify_dentry_parent_queue_event(dentry, mask, 0, dentry->d_name.name);
}
/*
@@ -87,14 +119,8 @@ static inline void fsnotify_inoderemove(struct inode *inode)
{
inotify_inode_queue_event(inode, IN_DELETE_SELF, 0, NULL, NULL);
inotify_inode_is_dead(inode);
-}
-/*
- * fsnotify_link_count - inode's link count changed
- */
-static inline void fsnotify_link_count(struct inode *inode)
-{
- inotify_inode_queue_event(inode, IN_ATTRIB, 0, NULL, NULL);
+ fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE);
}
/*
@@ -106,6 +132,8 @@ static inline void fsnotify_create(struct inode *inode, struct dentry *dentry)
inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name,
dentry->d_inode);
audit_inode_child(dentry->d_name.name, dentry, inode);
+
+ fsnotify(inode, FS_CREATE, dentry->d_inode, FSNOTIFY_EVENT_INODE);
}
/*
@@ -120,6 +148,8 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct
inode);
fsnotify_link_count(inode);
audit_inode_child(new_dentry->d_name.name, new_dentry, dir);
+
+ fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE);
}
/*
@@ -127,10 +157,14 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct
*/
static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
{
+ __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, IN_CREATE | IN_ISDIR, 0,
- dentry->d_name.name, dentry->d_inode);
+ inotify_inode_queue_event(inode, mask, 0, dentry->d_name.name, d_inode);
audit_inode_child(dentry->d_name.name, dentry, inode);
+
+ fsnotify(inode, mask, d_inode, FSNOTIFY_EVENT_INODE);
}
/*
@@ -139,14 +173,16 @@ static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
static inline void fsnotify_access(struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- u32 mask = IN_ACCESS;
+ __u32 mask = FS_ACCESS;
if (S_ISDIR(inode->i_mode))
- mask |= IN_ISDIR;
+ 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);
}
/*
@@ -155,14 +191,16 @@ static inline void fsnotify_access(struct dentry *dentry)
static inline void fsnotify_modify(struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- u32 mask = IN_MODIFY;
+ __u32 mask = FS_MODIFY;
if (S_ISDIR(inode->i_mode))
- mask |= IN_ISDIR;
+ 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);
}
/*
@@ -171,13 +209,15 @@ static inline void fsnotify_modify(struct dentry *dentry)
static inline void fsnotify_open(struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- u32 mask = IN_OPEN;
+ __u32 mask = FS_OPEN;
if (S_ISDIR(inode->i_mode))
- mask |= IN_ISDIR;
+ 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);
}
/*
@@ -189,13 +229,15 @@ static inline void fsnotify_close(struct file *file)
struct inode *inode = dentry->d_inode;
const char *name = dentry->d_name.name;
fmode_t mode = file->f_mode;
- u32 mask = (mode & FMODE_WRITE) ? IN_CLOSE_WRITE : IN_CLOSE_NOWRITE;
+ __u32 mask = (mode & FMODE_WRITE) ? FS_CLOSE_WRITE : FS_CLOSE_NOWRITE;
if (S_ISDIR(inode->i_mode))
- mask |= IN_ISDIR;
+ 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);
}
/*
@@ -204,13 +246,15 @@ static inline void fsnotify_close(struct file *file)
static inline void fsnotify_xattr(struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- u32 mask = IN_ATTRIB;
+ __u32 mask = FS_ATTRIB;
if (S_ISDIR(inode->i_mode))
- mask |= IN_ISDIR;
+ 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);
}
/*
@@ -221,34 +265,34 @@ 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 in_mask = 0;
if (ia_valid & ATTR_UID) {
- in_mask |= IN_ATTRIB;
+ in_mask |= FS_ATTRIB;
dn_mask |= DN_ATTRIB;
}
if (ia_valid & ATTR_GID) {
- in_mask |= IN_ATTRIB;
+ in_mask |= FS_ATTRIB;
dn_mask |= DN_ATTRIB;
}
if (ia_valid & ATTR_SIZE) {
- in_mask |= IN_MODIFY;
+ 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 |= IN_ATTRIB;
+ in_mask |= FS_ATTRIB;
dn_mask |= DN_ATTRIB;
} else if (ia_valid & ATTR_ATIME) {
- in_mask |= IN_ACCESS;
+ in_mask |= FS_ACCESS;
dn_mask |= DN_ACCESS;
} else if (ia_valid & ATTR_MTIME) {
- in_mask |= IN_MODIFY;
+ in_mask |= FS_MODIFY;
dn_mask |= DN_MODIFY;
}
if (ia_valid & ATTR_MODE) {
- in_mask |= IN_ATTRIB;
+ in_mask |= FS_ATTRIB;
dn_mask |= DN_ATTRIB;
}
@@ -256,14 +300,15 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
dnotify_parent(dentry, dn_mask);
if (in_mask) {
if (S_ISDIR(inode->i_mode))
- in_mask |= IN_ISDIR;
+ 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);
}
}
-#ifdef CONFIG_INOTIFY /* inotify helpers */
+#if defined(CONFIG_INOTIFY) || defined(CONFIG_FSNOTIFY) /* notify helpers */
/*
* fsnotify_oldname_init - save off the old filename before we change it
@@ -281,7 +326,7 @@ static inline void fsnotify_oldname_free(const char *old_name)
kfree(old_name);
}
-#else /* CONFIG_INOTIFY */
+#else /* CONFIG_INOTIFY || CONFIG_FSNOTIFY */
static inline const char *fsnotify_oldname_init(const char *name)
{
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.