if (arg & DN_ATTRIB)
new_mask |= FS_ATTRIB;
if (arg & DN_RENAME)
- new_mask |= FS_DN_RENAME;
+ new_mask |= FS_RENAME;
if (arg & DN_CREATE)
new_mask |= (FS_CREATE | FS_MOVED_TO);
struct fanotify_info *info2)
{
if (info1->dir_fh_totlen != info2->dir_fh_totlen ||
+ info1->dir2_fh_totlen != info2->dir2_fh_totlen ||
info1->file_fh_totlen != info2->file_fh_totlen ||
- info1->name_len != info2->name_len)
+ info1->name_len != info2->name_len ||
+ info1->name2_len != info2->name2_len)
return false;
if (info1->dir_fh_totlen &&
fanotify_info_dir_fh(info2)))
return false;
+ if (info1->dir2_fh_totlen &&
+ !fanotify_fh_equal(fanotify_info_dir2_fh(info1),
+ fanotify_info_dir2_fh(info2)))
+ return false;
+
if (info1->file_fh_totlen &&
!fanotify_fh_equal(fanotify_info_file_fh(info1),
fanotify_info_file_fh(info2)))
return false;
- return !info1->name_len ||
- !memcmp(fanotify_info_name(info1), fanotify_info_name(info2),
- info1->name_len);
+ if (info1->name_len &&
+ memcmp(fanotify_info_name(info1), fanotify_info_name(info2),
+ info1->name_len))
+ return false;
+
+ return !info1->name2_len ||
+ !memcmp(fanotify_info_name2(info1), fanotify_info_name2(info2),
+ info1->name2_len);
}
static bool fanotify_name_event_equal(struct fanotify_name_event *fne1,
if ((old->mask & FS_ISDIR) != (new->mask & FS_ISDIR))
return false;
+ /*
+ * FAN_RENAME event is reported with special info record types,
+ * so we cannot merge it with other events.
+ */
+ if ((old->mask & FAN_RENAME) != (new->mask & FAN_RENAME))
+ return false;
+
switch (old->type) {
case FANOTIFY_EVENT_TYPE_PATH:
return fanotify_path_equal(fanotify_event_path(old),
*/
static u32 fanotify_group_event_mask(struct fsnotify_group *group,
struct fsnotify_iter_info *iter_info,
- u32 event_mask, const void *data,
- int data_type, struct inode *dir)
+ u32 *match_mask, u32 event_mask,
+ const void *data, int data_type,
+ struct inode *dir)
{
__u32 marks_mask = 0, marks_ignored_mask = 0;
__u32 test_mask, user_mask = FANOTIFY_OUTGOING_EVENTS |
return 0;
}
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
if (!fsnotify_iter_should_report_type(iter_info, type))
continue;
mark = iter_info->marks[type];
* If the event is on a child and this mark is on a parent not
* watching children, don't send it!
*/
- if (type == FSNOTIFY_OBJ_TYPE_PARENT &&
+ if (type == FSNOTIFY_ITER_TYPE_PARENT &&
!(mark->mask & FS_EVENT_ON_CHILD))
continue;
marks_mask |= mark->mask;
+
+ /* Record the mark types of this group that matched the event */
+ *match_mask |= 1U << type;
}
test_mask = event_mask & marks_mask & ~marks_ignored_mask;
* be zero in that case if encoding fh len failed.
*/
err = -ENOENT;
- if (fh_len < 4 || WARN_ON_ONCE(fh_len % 4))
+ if (fh_len < 4 || WARN_ON_ONCE(fh_len % 4) || fh_len > MAX_HANDLE_SZ)
goto out_err;
/* No external buffer in a variable size allocated fh */
}
/*
- * The inode to use as identifier when reporting fid depends on the event.
- * Report the modified directory inode on dirent modification events.
- * Report the "victim" inode otherwise.
+ * FAN_REPORT_FID is ambiguous in that it reports the fid of the child for
+ * some events and the fid of the parent for create/delete/move events.
+ *
+ * With the FAN_REPORT_TARGET_FID flag, the fid of the child is reported
+ * also in create/delete/move events in addition to the fid of the parent
+ * and the name of the child.
+ */
+static inline bool fanotify_report_child_fid(unsigned int fid_mode, u32 mask)
+{
+ if (mask & ALL_FSNOTIFY_DIRENT_EVENTS)
+ return (fid_mode & FAN_REPORT_TARGET_FID);
+
+ return (fid_mode & FAN_REPORT_FID) && !(mask & FAN_ONDIR);
+}
+
+/*
+ * The inode to use as identifier when reporting fid depends on the event
+ * and the group flags.
+ *
+ * With the group flag FAN_REPORT_TARGET_FID, always report the child fid.
+ *
+ * Without the group flag FAN_REPORT_TARGET_FID, report the modified directory
+ * fid on dirent events and the child fid otherwise.
+ *
* For example:
- * FS_ATTRIB reports the child inode even if reported on a watched parent.
- * FS_CREATE reports the modified dir inode and not the created inode.
+ * FS_ATTRIB reports the child fid even if reported on a watched parent.
+ * FS_CREATE reports the modified dir fid without FAN_REPORT_TARGET_FID.
+ * and reports the created child fid with FAN_REPORT_TARGET_FID.
*/
static struct inode *fanotify_fid_inode(u32 event_mask, const void *data,
- int data_type, struct inode *dir)
+ int data_type, struct inode *dir,
+ unsigned int fid_mode)
{
- if (event_mask & ALL_FSNOTIFY_DIRENT_EVENTS)
+ if ((event_mask & ALL_FSNOTIFY_DIRENT_EVENTS) &&
+ !(fid_mode & FAN_REPORT_TARGET_FID))
return dir;
return fsnotify_data_inode(data, data_type);
return &ffe->fae;
}
-static struct fanotify_event *fanotify_alloc_name_event(struct inode *id,
+static struct fanotify_event *fanotify_alloc_name_event(struct inode *dir,
__kernel_fsid_t *fsid,
const struct qstr *name,
struct inode *child,
+ struct dentry *moved,
unsigned int *hash,
gfp_t gfp)
{
struct fanotify_name_event *fne;
struct fanotify_info *info;
struct fanotify_fh *dfh, *ffh;
- unsigned int dir_fh_len = fanotify_encode_fh_len(id);
+ struct inode *dir2 = moved ? d_inode(moved->d_parent) : NULL;
+ const struct qstr *name2 = moved ? &moved->d_name : NULL;
+ unsigned int dir_fh_len = fanotify_encode_fh_len(dir);
+ unsigned int dir2_fh_len = fanotify_encode_fh_len(dir2);
unsigned int child_fh_len = fanotify_encode_fh_len(child);
- unsigned int size;
-
- size = sizeof(*fne) + FANOTIFY_FH_HDR_LEN + dir_fh_len;
+ unsigned long name_len = name ? name->len : 0;
+ unsigned long name2_len = name2 ? name2->len : 0;
+ unsigned int len, size;
+
+ /* Reserve terminating null byte even for empty name */
+ size = sizeof(*fne) + name_len + name2_len + 2;
+ if (dir_fh_len)
+ size += FANOTIFY_FH_HDR_LEN + dir_fh_len;
+ if (dir2_fh_len)
+ size += FANOTIFY_FH_HDR_LEN + dir2_fh_len;
if (child_fh_len)
size += FANOTIFY_FH_HDR_LEN + child_fh_len;
- if (name)
- size += name->len + 1;
fne = kmalloc(size, gfp);
if (!fne)
return NULL;
*hash ^= fanotify_hash_fsid(fsid);
info = &fne->info;
fanotify_info_init(info);
- dfh = fanotify_info_dir_fh(info);
- info->dir_fh_totlen = fanotify_encode_fh(dfh, id, dir_fh_len, hash, 0);
+ if (dir_fh_len) {
+ dfh = fanotify_info_dir_fh(info);
+ len = fanotify_encode_fh(dfh, dir, dir_fh_len, hash, 0);
+ fanotify_info_set_dir_fh(info, len);
+ }
+ if (dir2_fh_len) {
+ dfh = fanotify_info_dir2_fh(info);
+ len = fanotify_encode_fh(dfh, dir2, dir2_fh_len, hash, 0);
+ fanotify_info_set_dir2_fh(info, len);
+ }
if (child_fh_len) {
ffh = fanotify_info_file_fh(info);
- info->file_fh_totlen = fanotify_encode_fh(ffh, child,
- child_fh_len, hash, 0);
+ len = fanotify_encode_fh(ffh, child, child_fh_len, hash, 0);
+ fanotify_info_set_file_fh(info, len);
}
- if (name) {
- long salt = name->len;
-
+ if (name_len) {
fanotify_info_copy_name(info, name);
- *hash ^= full_name_hash((void *)salt, name->name, name->len);
+ *hash ^= full_name_hash((void *)name_len, name->name, name_len);
+ }
+ if (name2_len) {
+ fanotify_info_copy_name2(info, name2);
+ *hash ^= full_name_hash((void *)name2_len, name2->name,
+ name2_len);
}
- pr_debug("%s: ino=%lu size=%u dir_fh_len=%u child_fh_len=%u name_len=%u name='%.*s'\n",
- __func__, id->i_ino, size, dir_fh_len, child_fh_len,
+ pr_debug("%s: size=%u dir_fh_len=%u child_fh_len=%u name_len=%u name='%.*s'\n",
+ __func__, size, dir_fh_len, child_fh_len,
info->name_len, info->name_len, fanotify_info_name(info));
+ if (dir2_fh_len) {
+ pr_debug("%s: dir2_fh_len=%u name2_len=%u name2='%.*s'\n",
+ __func__, dir2_fh_len, info->name2_len,
+ info->name2_len, fanotify_info_name2(info));
+ }
+
return &fne->fae;
}
return &fee->fae;
}
-static struct fanotify_event *fanotify_alloc_event(struct fsnotify_group *group,
- u32 mask, const void *data,
- int data_type, struct inode *dir,
- const struct qstr *file_name,
- __kernel_fsid_t *fsid)
+static struct fanotify_event *fanotify_alloc_event(
+ struct fsnotify_group *group,
+ u32 mask, const void *data, int data_type,
+ struct inode *dir, const struct qstr *file_name,
+ __kernel_fsid_t *fsid, u32 match_mask)
{
struct fanotify_event *event = NULL;
gfp_t gfp = GFP_KERNEL_ACCOUNT;
- struct inode *id = fanotify_fid_inode(mask, data, data_type, dir);
+ unsigned int fid_mode = FAN_GROUP_FLAG(group, FANOTIFY_FID_BITS);
+ struct inode *id = fanotify_fid_inode(mask, data, data_type, dir,
+ fid_mode);
struct inode *dirid = fanotify_dfid_inode(mask, data, data_type, dir);
const struct path *path = fsnotify_data_path(data, data_type);
- unsigned int fid_mode = FAN_GROUP_FLAG(group, FANOTIFY_FID_BITS);
struct mem_cgroup *old_memcg;
+ struct dentry *moved = NULL;
struct inode *child = NULL;
bool name_event = false;
unsigned int hash = 0;
if ((fid_mode & FAN_REPORT_DIR_FID) && dirid) {
/*
- * With both flags FAN_REPORT_DIR_FID and FAN_REPORT_FID, we
- * report the child fid for events reported on a non-dir child
+ * For certain events and group flags, report the child fid
* in addition to reporting the parent fid and maybe child name.
*/
- if ((fid_mode & FAN_REPORT_FID) && id != dirid && !ondir)
+ if (fanotify_report_child_fid(fid_mode, mask) && id != dirid)
child = id;
id = dirid;
} else if ((mask & ALL_FSNOTIFY_DIRENT_EVENTS) || !ondir) {
name_event = true;
}
+
+ /*
+ * In the special case of FAN_RENAME event, use the match_mask
+ * to determine if we need to report only the old parent+name,
+ * only the new parent+name or both.
+ * 'dirid' and 'file_name' are the old parent+name and
+ * 'moved' has the new parent+name.
+ */
+ if (mask & FAN_RENAME) {
+ bool report_old, report_new;
+
+ if (WARN_ON_ONCE(!match_mask))
+ return NULL;
+
+ /* Report both old and new parent+name if sb watching */
+ report_old = report_new =
+ match_mask & (1U << FSNOTIFY_ITER_TYPE_SB);
+ report_old |=
+ match_mask & (1U << FSNOTIFY_ITER_TYPE_INODE);
+ report_new |=
+ match_mask & (1U << FSNOTIFY_ITER_TYPE_INODE2);
+
+ if (!report_old) {
+ /* Do not report old parent+name */
+ dirid = NULL;
+ file_name = NULL;
+ }
+ if (report_new) {
+ /* Report new parent+name */
+ moved = fsnotify_data_dentry(data, data_type);
+ }
+ }
}
/*
} else if (fanotify_is_error_event(mask)) {
event = fanotify_alloc_error_event(group, fsid, data,
data_type, &hash);
- } else if (name_event && (file_name || child)) {
- event = fanotify_alloc_name_event(id, fsid, file_name, child,
- &hash, gfp);
+ } else if (name_event && (file_name || moved || child)) {
+ event = fanotify_alloc_name_event(dirid, fsid, file_name, child,
+ moved, &hash, gfp);
} else if (fid_mode) {
event = fanotify_alloc_fid_event(id, fsid, &hash, gfp);
} else {
int type;
__kernel_fsid_t fsid = {};
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
struct fsnotify_mark_connector *conn;
if (!fsnotify_iter_should_report_type(iter_info, type))
struct fanotify_event *event;
struct fsnotify_event *fsn_event;
__kernel_fsid_t fsid = {};
+ u32 match_mask = 0;
BUILD_BUG_ON(FAN_ACCESS != FS_ACCESS);
BUILD_BUG_ON(FAN_MODIFY != FS_MODIFY);
BUILD_BUG_ON(FAN_OPEN_EXEC != FS_OPEN_EXEC);
BUILD_BUG_ON(FAN_OPEN_EXEC_PERM != FS_OPEN_EXEC_PERM);
BUILD_BUG_ON(FAN_FS_ERROR != FS_ERROR);
+ BUILD_BUG_ON(FAN_RENAME != FS_RENAME);
- BUILD_BUG_ON(HWEIGHT32(ALL_FANOTIFY_EVENT_BITS) != 20);
+ BUILD_BUG_ON(HWEIGHT32(ALL_FANOTIFY_EVENT_BITS) != 21);
- mask = fanotify_group_event_mask(group, iter_info, mask, data,
- data_type, dir);
+ mask = fanotify_group_event_mask(group, iter_info, &match_mask,
+ mask, data, data_type, dir);
if (!mask)
return 0;
- pr_debug("%s: group=%p mask=%x\n", __func__, group, mask);
+ pr_debug("%s: group=%p mask=%x report_mask=%x\n", __func__,
+ group, mask, match_mask);
if (fanotify_is_perm_event(mask)) {
/*
}
event = fanotify_alloc_event(group, mask, data, data_type, dir,
- file_name, &fsid);
+ file_name, &fsid, match_mask);
ret = -ENOMEM;
if (unlikely(!event)) {
/*
struct fanotify_info {
/* size of dir_fh/file_fh including fanotify_fh hdr size */
u8 dir_fh_totlen;
+ u8 dir2_fh_totlen;
u8 file_fh_totlen;
u8 name_len;
- u8 pad;
+ u8 name2_len;
+ u8 pad[3];
unsigned char buf[];
/*
* (struct fanotify_fh) dir_fh starts at buf[0]
- * (optional) file_fh starts at buf[dir_fh_totlen]
- * name starts at buf[dir_fh_totlen + file_fh_totlen]
+ * (optional) dir2_fh starts at buf[dir_fh_totlen]
+ * (optional) file_fh starts at buf[dir_fh_totlen + dir2_fh_totlen]
+ * name starts at buf[dir_fh_totlen + dir2_fh_totlen + file_fh_totlen]
+ * ...
*/
+#define FANOTIFY_DIR_FH_SIZE(info) ((info)->dir_fh_totlen)
+#define FANOTIFY_DIR2_FH_SIZE(info) ((info)->dir2_fh_totlen)
+#define FANOTIFY_FILE_FH_SIZE(info) ((info)->file_fh_totlen)
+#define FANOTIFY_NAME_SIZE(info) ((info)->name_len + 1)
+#define FANOTIFY_NAME2_SIZE(info) ((info)->name2_len + 1)
+
+#define FANOTIFY_DIR_FH_OFFSET(info) 0
+#define FANOTIFY_DIR2_FH_OFFSET(info) \
+ (FANOTIFY_DIR_FH_OFFSET(info) + FANOTIFY_DIR_FH_SIZE(info))
+#define FANOTIFY_FILE_FH_OFFSET(info) \
+ (FANOTIFY_DIR2_FH_OFFSET(info) + FANOTIFY_DIR2_FH_SIZE(info))
+#define FANOTIFY_NAME_OFFSET(info) \
+ (FANOTIFY_FILE_FH_OFFSET(info) + FANOTIFY_FILE_FH_SIZE(info))
+#define FANOTIFY_NAME2_OFFSET(info) \
+ (FANOTIFY_NAME_OFFSET(info) + FANOTIFY_NAME_SIZE(info))
+
+#define FANOTIFY_DIR_FH_BUF(info) \
+ ((info)->buf + FANOTIFY_DIR_FH_OFFSET(info))
+#define FANOTIFY_DIR2_FH_BUF(info) \
+ ((info)->buf + FANOTIFY_DIR2_FH_OFFSET(info))
+#define FANOTIFY_FILE_FH_BUF(info) \
+ ((info)->buf + FANOTIFY_FILE_FH_OFFSET(info))
+#define FANOTIFY_NAME_BUF(info) \
+ ((info)->buf + FANOTIFY_NAME_OFFSET(info))
+#define FANOTIFY_NAME2_BUF(info) \
+ ((info)->buf + FANOTIFY_NAME2_OFFSET(info))
} __aligned(4);
static inline bool fanotify_fh_has_ext_buf(struct fanotify_fh *fh)
{
BUILD_BUG_ON(offsetof(struct fanotify_info, buf) % 4);
- return (struct fanotify_fh *)info->buf;
+ return (struct fanotify_fh *)FANOTIFY_DIR_FH_BUF(info);
+}
+
+static inline int fanotify_info_dir2_fh_len(struct fanotify_info *info)
+{
+ if (!info->dir2_fh_totlen ||
+ WARN_ON_ONCE(info->dir2_fh_totlen < FANOTIFY_FH_HDR_LEN))
+ return 0;
+
+ return info->dir2_fh_totlen - FANOTIFY_FH_HDR_LEN;
+}
+
+static inline struct fanotify_fh *fanotify_info_dir2_fh(struct fanotify_info *info)
+{
+ return (struct fanotify_fh *)FANOTIFY_DIR2_FH_BUF(info);
}
static inline int fanotify_info_file_fh_len(struct fanotify_info *info)
static inline struct fanotify_fh *fanotify_info_file_fh(struct fanotify_info *info)
{
- return (struct fanotify_fh *)(info->buf + info->dir_fh_totlen);
+ return (struct fanotify_fh *)FANOTIFY_FILE_FH_BUF(info);
}
-static inline const char *fanotify_info_name(struct fanotify_info *info)
+static inline char *fanotify_info_name(struct fanotify_info *info)
{
- return info->buf + info->dir_fh_totlen + info->file_fh_totlen;
+ if (!info->name_len)
+ return NULL;
+
+ return FANOTIFY_NAME_BUF(info);
+}
+
+static inline char *fanotify_info_name2(struct fanotify_info *info)
+{
+ if (!info->name2_len)
+ return NULL;
+
+ return FANOTIFY_NAME2_BUF(info);
}
static inline void fanotify_info_init(struct fanotify_info *info)
{
+ BUILD_BUG_ON(FANOTIFY_FH_HDR_LEN + MAX_HANDLE_SZ > U8_MAX);
+ BUILD_BUG_ON(NAME_MAX > U8_MAX);
+
info->dir_fh_totlen = 0;
+ info->dir2_fh_totlen = 0;
info->file_fh_totlen = 0;
info->name_len = 0;
+ info->name2_len = 0;
+}
+
+/* These set/copy helpers MUST be called by order */
+static inline void fanotify_info_set_dir_fh(struct fanotify_info *info,
+ unsigned int totlen)
+{
+ if (WARN_ON_ONCE(info->dir2_fh_totlen > 0) ||
+ WARN_ON_ONCE(info->file_fh_totlen > 0) ||
+ WARN_ON_ONCE(info->name_len > 0) ||
+ WARN_ON_ONCE(info->name2_len > 0))
+ return;
+
+ info->dir_fh_totlen = totlen;
}
-static inline unsigned int fanotify_info_len(struct fanotify_info *info)
+static inline void fanotify_info_set_dir2_fh(struct fanotify_info *info,
+ unsigned int totlen)
{
- return info->dir_fh_totlen + info->file_fh_totlen + info->name_len;
+ if (WARN_ON_ONCE(info->file_fh_totlen > 0) ||
+ WARN_ON_ONCE(info->name_len > 0) ||
+ WARN_ON_ONCE(info->name2_len > 0))
+ return;
+
+ info->dir2_fh_totlen = totlen;
+}
+
+static inline void fanotify_info_set_file_fh(struct fanotify_info *info,
+ unsigned int totlen)
+{
+ if (WARN_ON_ONCE(info->name_len > 0) ||
+ WARN_ON_ONCE(info->name2_len > 0))
+ return;
+
+ info->file_fh_totlen = totlen;
}
static inline void fanotify_info_copy_name(struct fanotify_info *info,
const struct qstr *name)
{
+ if (WARN_ON_ONCE(name->len > NAME_MAX) ||
+ WARN_ON_ONCE(info->name2_len > 0))
+ return;
+
info->name_len = name->len;
- strcpy(info->buf + info->dir_fh_totlen + info->file_fh_totlen,
- name->name);
+ strcpy(fanotify_info_name(info), name->name);
+}
+
+static inline void fanotify_info_copy_name2(struct fanotify_info *info,
+ const struct qstr *name)
+{
+ if (WARN_ON_ONCE(name->len > NAME_MAX))
+ return;
+
+ info->name2_len = name->len;
+ strcpy(fanotify_info_name2(info), name->name);
}
/*
return info ? fanotify_info_dir_fh_len(info) : 0;
}
+static inline int fanotify_event_dir2_fh_len(struct fanotify_event *event)
+{
+ struct fanotify_info *info = fanotify_event_info(event);
+
+ return info ? fanotify_info_dir2_fh_len(info) : 0;
+}
+
static inline bool fanotify_event_has_object_fh(struct fanotify_event *event)
{
/* For error events, even zeroed fh are reported. */
return fanotify_event_dir_fh_len(event) > 0;
}
+static inline bool fanotify_event_has_dir2_fh(struct fanotify_event *event)
+{
+ return fanotify_event_dir2_fh_len(event) > 0;
+}
+
+static inline bool fanotify_event_has_any_dir_fh(struct fanotify_event *event)
+{
+ return fanotify_event_has_dir_fh(event) ||
+ fanotify_event_has_dir2_fh(event);
+}
+
struct fanotify_path_event {
struct fanotify_event fae;
struct path path;
FANOTIFY_EVENT_ALIGN);
}
+/* FAN_RENAME may have one or two dir+name info records */
+static int fanotify_dir_name_info_len(struct fanotify_event *event)
+{
+ struct fanotify_info *info = fanotify_event_info(event);
+ int dir_fh_len = fanotify_event_dir_fh_len(event);
+ int dir2_fh_len = fanotify_event_dir2_fh_len(event);
+ int info_len = 0;
+
+ if (dir_fh_len)
+ info_len += fanotify_fid_info_len(dir_fh_len,
+ info->name_len);
+ if (dir2_fh_len)
+ info_len += fanotify_fid_info_len(dir2_fh_len,
+ info->name2_len);
+
+ return info_len;
+}
+
static size_t fanotify_event_len(unsigned int info_mode,
struct fanotify_event *event)
{
size_t event_len = FAN_EVENT_METADATA_LEN;
struct fanotify_info *info;
- int dir_fh_len;
int fh_len;
int dot_len = 0;
info = fanotify_event_info(event);
- if (fanotify_event_has_dir_fh(event)) {
- dir_fh_len = fanotify_event_dir_fh_len(event);
- event_len += fanotify_fid_info_len(dir_fh_len, info->name_len);
+ if (fanotify_event_has_any_dir_fh(event)) {
+ event_len += fanotify_dir_name_info_len(event);
} else if ((info_mode & FAN_REPORT_NAME) &&
(event->mask & FAN_ONDIR)) {
/*
static size_t copy_error_info_to_user(struct fanotify_event *event,
char __user *buf, int count)
{
- struct fanotify_event_info_error info;
+ struct fanotify_event_info_error info = { };
struct fanotify_error_event *fee = FANOTIFY_EE(event);
info.hdr.info_type = FAN_EVENT_INFO_TYPE_ERROR;
- info.hdr.pad = 0;
info.hdr.len = FANOTIFY_ERROR_INFO_LEN;
if (WARN_ON(count < info.hdr.len))
return -EFAULT;
break;
case FAN_EVENT_INFO_TYPE_DFID_NAME:
+ case FAN_EVENT_INFO_TYPE_OLD_DFID_NAME:
+ case FAN_EVENT_INFO_TYPE_NEW_DFID_NAME:
if (WARN_ON_ONCE(!name || !name_len))
return -EFAULT;
break;
unsigned int pidfd_mode = info_mode & FAN_REPORT_PIDFD;
/*
- * Event info records order is as follows: dir fid + name, child fid.
+ * Event info records order is as follows:
+ * 1. dir fid + name
+ * 2. (optional) new dir fid + new name
+ * 3. (optional) child fid
*/
if (fanotify_event_has_dir_fh(event)) {
info_type = info->name_len ? FAN_EVENT_INFO_TYPE_DFID_NAME :
FAN_EVENT_INFO_TYPE_DFID;
+
+ /* FAN_RENAME uses special info types */
+ if (event->mask & FAN_RENAME)
+ info_type = FAN_EVENT_INFO_TYPE_OLD_DFID_NAME;
+
ret = copy_fid_info_to_user(fanotify_event_fsid(event),
fanotify_info_dir_fh(info),
info_type,
total_bytes += ret;
}
+ /* New dir fid+name may be reported in addition to old dir fid+name */
+ if (fanotify_event_has_dir2_fh(event)) {
+ info_type = FAN_EVENT_INFO_TYPE_NEW_DFID_NAME;
+ ret = copy_fid_info_to_user(fanotify_event_fsid(event),
+ fanotify_info_dir2_fh(info),
+ info_type,
+ fanotify_info_name2(info),
+ info->name2_len, buf, count);
+ if (ret < 0)
+ return ret;
+
+ buf += ret;
+ count -= ret;
+ total_bytes += ret;
+ }
+
if (fanotify_event_has_object_fh(event)) {
const char *dot = NULL;
int dot_len = 0;
static struct fsnotify_mark *fanotify_add_new_mark(struct fsnotify_group *group,
fsnotify_connp_t *connp,
- unsigned int type,
+ unsigned int obj_type,
__kernel_fsid_t *fsid)
{
struct ucounts *ucounts = group->fanotify_data.ucounts;
}
fsnotify_init_mark(mark, group);
- ret = fsnotify_add_mark_locked(mark, connp, type, 0, fsid);
+ ret = fsnotify_add_mark_locked(mark, connp, obj_type, 0, fsid);
if (ret) {
fsnotify_put_mark(mark);
goto out_dec_ucounts;
}
static int fanotify_add_mark(struct fsnotify_group *group,
- fsnotify_connp_t *connp, unsigned int type,
+ fsnotify_connp_t *connp, unsigned int obj_type,
__u32 mask, unsigned int flags,
__kernel_fsid_t *fsid)
{
mutex_lock(&group->mark_mutex);
fsn_mark = fsnotify_find_mark(connp, group);
if (!fsn_mark) {
- fsn_mark = fanotify_add_new_mark(group, connp, type, fsid);
+ fsn_mark = fanotify_add_new_mark(group, connp, obj_type, fsid);
if (IS_ERR(fsn_mark)) {
mutex_unlock(&group->mark_mutex);
return PTR_ERR(fsn_mark);
if ((fid_mode & FAN_REPORT_NAME) && !(fid_mode & FAN_REPORT_DIR_FID))
return -EINVAL;
+ /*
+ * FAN_REPORT_TARGET_FID requires FAN_REPORT_NAME and FAN_REPORT_FID
+ * and is used as an indication to report both dir and child fid on all
+ * dirent events.
+ */
+ if ((fid_mode & FAN_REPORT_TARGET_FID) &&
+ (!(fid_mode & FAN_REPORT_NAME) || !(fid_mode & FAN_REPORT_FID)))
+ return -EINVAL;
+
f_flags = O_RDWR | FMODE_NONOTIFY;
if (flags & FAN_CLOEXEC)
f_flags |= O_CLOEXEC;
(!fid_mode || mark_type == FAN_MARK_MOUNT))
goto fput_and_out;
+ /*
+ * FAN_RENAME uses special info type records to report the old and
+ * new parent+name. Reporting only old and new parent id is less
+ * useful and was not implemented.
+ */
+ if (mask & FAN_RENAME && !(fid_mode & FAN_REPORT_NAME))
+ goto fput_and_out;
+
if (flags & FAN_MARK_FLUSH) {
ret = 0;
if (mark_type == FAN_MARK_MOUNT)
FANOTIFY_DEFAULT_MAX_USER_MARKS);
BUILD_BUG_ON(FANOTIFY_INIT_FLAGS & FANOTIFY_INTERNAL_GROUP_FLAGS);
- BUILD_BUG_ON(HWEIGHT32(FANOTIFY_INIT_FLAGS) != 11);
+ BUILD_BUG_ON(HWEIGHT32(FANOTIFY_INIT_FLAGS) != 12);
BUILD_BUG_ON(HWEIGHT32(FANOTIFY_MARK_FLAGS) != 9);
fanotify_mark_cache = KMEM_CACHE(fsnotify_mark,
WARN_ON_ONCE(fsnotify_iter_vfsmount_mark(iter_info)))
return 0;
+ /*
+ * For FS_RENAME, 'dir' is old dir and 'data' is new dentry.
+ * The only ->handle_inode_event() backend that supports FS_RENAME is
+ * dnotify, where it means file was renamed within same parent.
+ */
+ if (mask & FS_RENAME) {
+ struct dentry *moved = fsnotify_data_dentry(data, data_type);
+
+ if (dir != moved->d_parent->d_inode)
+ return 0;
+ }
+
if (parent_mark) {
/*
* parent_mark indicates that the parent inode is watching
/* clear ignored on inode modification */
if (mask & FS_MODIFY) {
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
if (!fsnotify_iter_should_report_type(iter_info, type))
continue;
mark = iter_info->marks[type];
}
}
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
if (!fsnotify_iter_should_report_type(iter_info, type))
continue;
mark = iter_info->marks[type];
int type;
/* Choose max prio group among groups of all queue heads */
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
mark = iter_info->marks[type];
if (mark &&
fsnotify_compare_groups(max_prio_group, mark->group) > 0)
/* Set the report mask for marks from same group as max prio group */
iter_info->report_mask = 0;
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
mark = iter_info->marks[type];
if (mark &&
fsnotify_compare_groups(max_prio_group, mark->group) == 0)
{
int type;
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
if (fsnotify_iter_should_report_type(iter_info, type))
iter_info->marks[type] =
fsnotify_next_mark(iter_info->marks[type]);
struct super_block *sb = fsnotify_data_sb(data, data_type);
struct fsnotify_iter_info iter_info = {};
struct mount *mnt = NULL;
- struct inode *parent = NULL;
+ struct inode *inode2 = NULL;
+ struct dentry *moved;
+ int inode2_type;
int ret = 0;
__u32 test_mask, marks_mask;
if (!inode) {
/* Dirent event - report on TYPE_INODE to dir */
inode = dir;
+ /* For FS_RENAME, inode is old_dir and inode2 is new_dir */
+ if (mask & FS_RENAME) {
+ moved = fsnotify_data_dentry(data, data_type);
+ inode2 = moved->d_parent->d_inode;
+ inode2_type = FSNOTIFY_ITER_TYPE_INODE2;
+ }
} else if (mask & FS_EVENT_ON_CHILD) {
/*
* Event on child - report on TYPE_PARENT to dir if it is
* watching children and on TYPE_INODE to child.
*/
- parent = dir;
+ inode2 = dir;
+ inode2_type = FSNOTIFY_ITER_TYPE_PARENT;
}
/*
if (!sb->s_fsnotify_marks &&
(!mnt || !mnt->mnt_fsnotify_marks) &&
(!inode || !inode->i_fsnotify_marks) &&
- (!parent || !parent->i_fsnotify_marks))
+ (!inode2 || !inode2->i_fsnotify_marks))
return 0;
marks_mask = sb->s_fsnotify_mask;
marks_mask |= mnt->mnt_fsnotify_mask;
if (inode)
marks_mask |= inode->i_fsnotify_mask;
- if (parent)
- marks_mask |= parent->i_fsnotify_mask;
+ if (inode2)
+ marks_mask |= inode2->i_fsnotify_mask;
/*
iter_info.srcu_idx = srcu_read_lock(&fsnotify_mark_srcu);
- iter_info.marks[FSNOTIFY_OBJ_TYPE_SB] =
+ iter_info.marks[FSNOTIFY_ITER_TYPE_SB] =
fsnotify_first_mark(&sb->s_fsnotify_marks);
if (mnt) {
- iter_info.marks[FSNOTIFY_OBJ_TYPE_VFSMOUNT] =
+ iter_info.marks[FSNOTIFY_ITER_TYPE_VFSMOUNT] =
fsnotify_first_mark(&mnt->mnt_fsnotify_marks);
}
if (inode) {
- iter_info.marks[FSNOTIFY_OBJ_TYPE_INODE] =
+ iter_info.marks[FSNOTIFY_ITER_TYPE_INODE] =
fsnotify_first_mark(&inode->i_fsnotify_marks);
}
- if (parent) {
- iter_info.marks[FSNOTIFY_OBJ_TYPE_PARENT] =
- fsnotify_first_mark(&parent->i_fsnotify_marks);
+ if (inode2) {
+ iter_info.marks[inode2_type] =
+ fsnotify_first_mark(&inode2->i_fsnotify_marks);
}
/*
fsnotify_group_stop_queueing(group);
/* Clear all marks for this group and queue them for destruction */
- fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_ALL_TYPES_MASK);
+ fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_TYPE_ANY);
/*
* Some marks can still be pinned when waiting for response from
{
int type;
- fsnotify_foreach_obj_type(type) {
+ fsnotify_foreach_iter_type(type) {
/* This can fail if mark is being removed */
if (!fsnotify_get_mark_safe(iter_info->marks[type])) {
__release(&fsnotify_mark_srcu);
int type;
iter_info->srcu_idx = srcu_read_lock(&fsnotify_mark_srcu);
- fsnotify_foreach_obj_type(type)
+ fsnotify_foreach_iter_type(type)
fsnotify_put_mark_wake(iter_info->marks[type]);
}
}
static int fsnotify_attach_connector_to_object(fsnotify_connp_t *connp,
- unsigned int type,
+ unsigned int obj_type,
__kernel_fsid_t *fsid)
{
struct inode *inode = NULL;
return -ENOMEM;
spin_lock_init(&conn->lock);
INIT_HLIST_HEAD(&conn->list);
- conn->type = type;
+ conn->type = obj_type;
conn->obj = connp;
/* Cache fsid of filesystem containing the object */
if (fsid) {
* priority, highest number first, and then by the group's location in memory.
*/
static int fsnotify_add_mark_list(struct fsnotify_mark *mark,
- fsnotify_connp_t *connp, unsigned int type,
+ fsnotify_connp_t *connp,
+ unsigned int obj_type,
int allow_dups, __kernel_fsid_t *fsid)
{
struct fsnotify_mark *lmark, *last = NULL;
int cmp;
int err = 0;
- if (WARN_ON(!fsnotify_valid_obj_type(type)))
+ if (WARN_ON(!fsnotify_valid_obj_type(obj_type)))
return -EINVAL;
/* Backend is expected to check for zero fsid (e.g. tmpfs) */
conn = fsnotify_grab_connector(connp);
if (!conn) {
spin_unlock(&mark->lock);
- err = fsnotify_attach_connector_to_object(connp, type, fsid);
+ err = fsnotify_attach_connector_to_object(connp, obj_type,
+ fsid);
if (err)
return err;
goto restart;
* event types should be delivered to which group.
*/
int fsnotify_add_mark_locked(struct fsnotify_mark *mark,
- fsnotify_connp_t *connp, unsigned int type,
+ fsnotify_connp_t *connp, unsigned int obj_type,
int allow_dups, __kernel_fsid_t *fsid)
{
struct fsnotify_group *group = mark->group;
fsnotify_get_mark(mark); /* for g_list */
spin_unlock(&mark->lock);
- ret = fsnotify_add_mark_list(mark, connp, type, allow_dups, fsid);
+ ret = fsnotify_add_mark_list(mark, connp, obj_type, allow_dups, fsid);
if (ret)
goto err;
}
int fsnotify_add_mark(struct fsnotify_mark *mark, fsnotify_connp_t *connp,
- unsigned int type, int allow_dups, __kernel_fsid_t *fsid)
+ unsigned int obj_type, int allow_dups,
+ __kernel_fsid_t *fsid)
{
int ret;
struct fsnotify_group *group = mark->group;
mutex_lock(&group->mark_mutex);
- ret = fsnotify_add_mark_locked(mark, connp, type, allow_dups, fsid);
+ ret = fsnotify_add_mark_locked(mark, connp, obj_type, allow_dups, fsid);
mutex_unlock(&group->mark_mutex);
return ret;
}
/* Clear any marks in a group with given type mask */
void fsnotify_clear_marks_by_group(struct fsnotify_group *group,
- unsigned int type_mask)
+ unsigned int obj_type)
{
struct fsnotify_mark *lmark, *mark;
LIST_HEAD(to_free);
struct list_head *head = &to_free;
/* Skip selection step if we want to clear all marks. */
- if (type_mask == FSNOTIFY_OBJ_ALL_TYPES_MASK) {
+ if (obj_type == FSNOTIFY_OBJ_TYPE_ANY) {
head = &group->marks_list;
goto clear;
}
*/
mutex_lock_nested(&group->mark_mutex, SINGLE_DEPTH_NESTING);
list_for_each_entry_safe(mark, lmark, &group->marks_list, g_list) {
- if ((1U << mark->connector->type) & type_mask)
+ if (mark->connector->type == obj_type)
list_move(&mark->g_list, &to_free);
}
mutex_unlock(&group->mark_mutex);
FS_MODIFY | FS_MODIFY_CHILD |\
FS_ACCESS | FS_ACCESS_CHILD |\
FS_ATTRIB | FS_ATTRIB_CHILD |\
- FS_CREATE | FS_DN_RENAME |\
+ FS_CREATE | FS_RENAME |\
FS_MOVED_FROM | FS_MOVED_TO)
extern int dir_notify_enable;
#define FANOTIFY_CLASS_BITS (FAN_CLASS_NOTIF | FANOTIFY_PERM_CLASSES)
-#define FANOTIFY_FID_BITS (FAN_REPORT_FID | FAN_REPORT_DFID_NAME)
+#define FANOTIFY_FID_BITS (FAN_REPORT_DFID_NAME_TARGET)
#define FANOTIFY_INFO_MODES (FANOTIFY_FID_BITS | FAN_REPORT_PIDFD)
* Directory entry modification events - reported only to directory
* where entry is modified and not to a watching parent.
*/
-#define FANOTIFY_DIRENT_EVENTS (FAN_MOVE | FAN_CREATE | FAN_DELETE)
+#define FANOTIFY_DIRENT_EVENTS (FAN_MOVE | FAN_CREATE | FAN_DELETE | \
+ FAN_RENAME)
/* Events that can be reported with event->fd */
#define FANOTIFY_FD_EVENTS (FANOTIFY_PATH_EVENTS | FANOTIFY_PERM_EVENTS)
u32 fs_cookie = fsnotify_get_cookie();
__u32 old_dir_mask = FS_MOVED_FROM;
__u32 new_dir_mask = FS_MOVED_TO;
+ __u32 rename_mask = FS_RENAME;
const struct qstr *new_name = &moved->d_name;
- if (old_dir == new_dir)
- old_dir_mask |= FS_DN_RENAME;
-
if (isdir) {
old_dir_mask |= FS_ISDIR;
new_dir_mask |= FS_ISDIR;
+ rename_mask |= FS_ISDIR;
}
+ /* Event with information about both old and new parent+name */
+ fsnotify_name(rename_mask, moved, FSNOTIFY_EVENT_DENTRY,
+ old_dir, old_name, 0);
+
fsnotify_name(old_dir_mask, source, FSNOTIFY_EVENT_INODE,
old_dir, old_name, fs_cookie);
fsnotify_name(new_dir_mask, source, FSNOTIFY_EVENT_INODE,
*/
#define FS_EVENT_ON_CHILD 0x08000000
-#define FS_DN_RENAME 0x10000000 /* file renamed */
+#define FS_RENAME 0x10000000 /* File was renamed */
#define FS_DN_MULTISHOT 0x20000000 /* dnotify multishot */
#define FS_ISDIR 0x40000000 /* event occurred against dir */
#define FS_IN_ONESHOT 0x80000000 /* only send event once */
* The watching parent may get an FS_ATTRIB|FS_EVENT_ON_CHILD event
* when a directory entry inside a child subdir changes.
*/
-#define ALL_FSNOTIFY_DIRENT_EVENTS (FS_CREATE | FS_DELETE | FS_MOVE)
+#define ALL_FSNOTIFY_DIRENT_EVENTS (FS_CREATE | FS_DELETE | FS_MOVE | FS_RENAME)
#define ALL_FSNOTIFY_PERM_EVENTS (FS_OPEN_PERM | FS_ACCESS_PERM | \
FS_OPEN_EXEC_PERM)
/* Events that can be reported to backends */
#define ALL_FSNOTIFY_EVENTS (ALL_FSNOTIFY_DIRENT_EVENTS | \
FS_EVENTS_POSS_ON_CHILD | \
- FS_DELETE_SELF | FS_MOVE_SELF | FS_DN_RENAME | \
+ FS_DELETE_SELF | FS_MOVE_SELF | \
FS_UNMOUNT | FS_Q_OVERFLOW | FS_IN_IGNORED | \
FS_ERROR)
}
}
+/*
+ * Index to merged marks iterator array that correlates to a type of watch.
+ * The type of watched object can be deduced from the iterator type, but not
+ * the other way around, because an event can match different watched objects
+ * of the same object type.
+ * For example, both parent and child are watching an object of type inode.
+ */
+enum fsnotify_iter_type {
+ FSNOTIFY_ITER_TYPE_INODE,
+ FSNOTIFY_ITER_TYPE_VFSMOUNT,
+ FSNOTIFY_ITER_TYPE_SB,
+ FSNOTIFY_ITER_TYPE_PARENT,
+ FSNOTIFY_ITER_TYPE_INODE2,
+ FSNOTIFY_ITER_TYPE_COUNT
+};
+
+/* The type of object that a mark is attached to */
enum fsnotify_obj_type {
+ FSNOTIFY_OBJ_TYPE_ANY = -1,
FSNOTIFY_OBJ_TYPE_INODE,
- FSNOTIFY_OBJ_TYPE_PARENT,
FSNOTIFY_OBJ_TYPE_VFSMOUNT,
FSNOTIFY_OBJ_TYPE_SB,
FSNOTIFY_OBJ_TYPE_COUNT,
FSNOTIFY_OBJ_TYPE_DETACHED = FSNOTIFY_OBJ_TYPE_COUNT
};
-#define FSNOTIFY_OBJ_TYPE_INODE_FL (1U << FSNOTIFY_OBJ_TYPE_INODE)
-#define FSNOTIFY_OBJ_TYPE_PARENT_FL (1U << FSNOTIFY_OBJ_TYPE_PARENT)
-#define FSNOTIFY_OBJ_TYPE_VFSMOUNT_FL (1U << FSNOTIFY_OBJ_TYPE_VFSMOUNT)
-#define FSNOTIFY_OBJ_TYPE_SB_FL (1U << FSNOTIFY_OBJ_TYPE_SB)
-#define FSNOTIFY_OBJ_ALL_TYPES_MASK ((1U << FSNOTIFY_OBJ_TYPE_COUNT) - 1)
-
-static inline bool fsnotify_valid_obj_type(unsigned int type)
+static inline bool fsnotify_valid_obj_type(unsigned int obj_type)
{
- return (type < FSNOTIFY_OBJ_TYPE_COUNT);
+ return (obj_type < FSNOTIFY_OBJ_TYPE_COUNT);
}
struct fsnotify_iter_info {
- struct fsnotify_mark *marks[FSNOTIFY_OBJ_TYPE_COUNT];
+ struct fsnotify_mark *marks[FSNOTIFY_ITER_TYPE_COUNT];
unsigned int report_mask;
int srcu_idx;
};
static inline bool fsnotify_iter_should_report_type(
- struct fsnotify_iter_info *iter_info, int type)
+ struct fsnotify_iter_info *iter_info, int iter_type)
{
- return (iter_info->report_mask & (1U << type));
+ return (iter_info->report_mask & (1U << iter_type));
}
static inline void fsnotify_iter_set_report_type(
- struct fsnotify_iter_info *iter_info, int type)
+ struct fsnotify_iter_info *iter_info, int iter_type)
{
- iter_info->report_mask |= (1U << type);
+ iter_info->report_mask |= (1U << iter_type);
}
static inline void fsnotify_iter_set_report_type_mark(
- struct fsnotify_iter_info *iter_info, int type,
+ struct fsnotify_iter_info *iter_info, int iter_type,
struct fsnotify_mark *mark)
{
- iter_info->marks[type] = mark;
- iter_info->report_mask |= (1U << type);
+ iter_info->marks[iter_type] = mark;
+ iter_info->report_mask |= (1U << iter_type);
}
#define FSNOTIFY_ITER_FUNCS(name, NAME) \
static inline struct fsnotify_mark *fsnotify_iter_##name##_mark( \
struct fsnotify_iter_info *iter_info) \
{ \
- return (iter_info->report_mask & FSNOTIFY_OBJ_TYPE_##NAME##_FL) ? \
- iter_info->marks[FSNOTIFY_OBJ_TYPE_##NAME] : NULL; \
+ return (iter_info->report_mask & (1U << FSNOTIFY_ITER_TYPE_##NAME)) ? \
+ iter_info->marks[FSNOTIFY_ITER_TYPE_##NAME] : NULL; \
}
FSNOTIFY_ITER_FUNCS(inode, INODE)
FSNOTIFY_ITER_FUNCS(vfsmount, VFSMOUNT)
FSNOTIFY_ITER_FUNCS(sb, SB)
-#define fsnotify_foreach_obj_type(type) \
- for (type = 0; type < FSNOTIFY_OBJ_TYPE_COUNT; type++)
+#define fsnotify_foreach_iter_type(type) \
+ for (type = 0; type < FSNOTIFY_ITER_TYPE_COUNT; type++)
/*
* fsnotify_connp_t is what we embed in objects which connector can be attached
__kernel_fsid_t *fsid);
/* attach the mark to the object */
extern int fsnotify_add_mark(struct fsnotify_mark *mark,
- fsnotify_connp_t *connp, unsigned int type,
+ fsnotify_connp_t *connp, unsigned int obj_type,
int allow_dups, __kernel_fsid_t *fsid);
extern int fsnotify_add_mark_locked(struct fsnotify_mark *mark,
fsnotify_connp_t *connp,
- unsigned int type, int allow_dups,
+ unsigned int obj_type, int allow_dups,
__kernel_fsid_t *fsid);
/* attach the mark to the inode */
extern void fsnotify_free_mark(struct fsnotify_mark *mark);
/* Wait until all marks queued for destruction are destroyed */
extern void fsnotify_wait_marks_destroyed(void);
-/* run all the marks in a group, and clear all of the marks attached to given object type */
-extern void fsnotify_clear_marks_by_group(struct fsnotify_group *group, unsigned int type);
+/* Clear all of the marks of a group attached to a given object type */
+extern void fsnotify_clear_marks_by_group(struct fsnotify_group *group,
+ unsigned int obj_type);
/* run all the marks in a group, and clear all of the vfsmount marks */
static inline void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group)
{
- fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_TYPE_VFSMOUNT_FL);
+ fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_TYPE_VFSMOUNT);
}
/* run all the marks in a group, and clear all of the inode marks */
static inline void fsnotify_clear_inode_marks_by_group(struct fsnotify_group *group)
{
- fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_TYPE_INODE_FL);
+ fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_TYPE_INODE);
}
/* run all the marks in a group, and clear all of the sn marks */
static inline void fsnotify_clear_sb_marks_by_group(struct fsnotify_group *group)
{
- fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_TYPE_SB_FL);
+ fsnotify_clear_marks_by_group(group, FSNOTIFY_OBJ_TYPE_SB);
}
extern void fsnotify_get_mark(struct fsnotify_mark *mark);
extern void fsnotify_put_mark(struct fsnotify_mark *mark);
#define FAN_EVENT_ON_CHILD 0x08000000 /* Interested in child events */
+#define FAN_RENAME 0x10000000 /* File was renamed */
+
#define FAN_ONDIR 0x40000000 /* Event occurred against dir */
/* helper events */
#define FAN_REPORT_FID 0x00000200 /* Report unique file id */
#define FAN_REPORT_DIR_FID 0x00000400 /* Report unique directory id */
#define FAN_REPORT_NAME 0x00000800 /* Report events with name */
+#define FAN_REPORT_TARGET_FID 0x00001000 /* Report dirent target id */
/* Convenience macro - FAN_REPORT_NAME requires FAN_REPORT_DIR_FID */
#define FAN_REPORT_DFID_NAME (FAN_REPORT_DIR_FID | FAN_REPORT_NAME)
+/* Convenience macro - FAN_REPORT_TARGET_FID requires all other FID flags */
+#define FAN_REPORT_DFID_NAME_TARGET (FAN_REPORT_DFID_NAME | \
+ FAN_REPORT_FID | FAN_REPORT_TARGET_FID)
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | \
#define FAN_EVENT_INFO_TYPE_PIDFD 4
#define FAN_EVENT_INFO_TYPE_ERROR 5
+/* Special info types for FAN_RENAME */
+#define FAN_EVENT_INFO_TYPE_OLD_DFID_NAME 10
+/* Reserved for FAN_EVENT_INFO_TYPE_OLD_DFID 11 */
+#define FAN_EVENT_INFO_TYPE_NEW_DFID_NAME 12
+/* Reserved for FAN_EVENT_INFO_TYPE_NEW_DFID 13 */
+
/* Variable length info record following event metadata */
struct fanotify_event_info_header {
__u8 info_type;
projects / linux-2.6-microblaze.git / commitdiff