[PATCH 2/3] fs/ntfs3: Add hidedotfiles option

Konstantin Komarov
2022-09-12T16:40:02Z

With this option all files with filename[0] == '.'
will have FILE_ATTRIBUTE_HIDDEN attribute.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
fs/ntfs3/inode.c | 4 ++++
fs/ntfs3/ntfs_fs.h | 1 +
fs/ntfs3/super.c | 5 +++++
3 files changed, 10 insertions(+)

diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 51363d4e8636..40b8565815a2 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -1257,6 +1257,10 @@ struct inode *ntfs_create_inode(struct user_namespace *mnt_userns,
fa = FILE_ATTRIBUTE_ARCHIVE;
}

+ /* If option "hidedotfiles" then set hidden attribute for dot files. */
+ if (sbi->options->hide_dot_files && name->name[0] == '.')
+ fa |= FILE_ATTRIBUTE_HIDDEN;
+
if (!(mode & 0222))
fa |= FILE_ATTRIBUTE_READONLY;

diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 2c791222c4e2..cd680ada50ab 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -97,6 +97,7 @@ struct ntfs_mount_options {
unsigned sparse : 1; /* Create sparse files. */
unsigned showmeta : 1; /* Show meta files. */
unsigned nohidden : 1; /* Do not show hidden files. */
+ unsigned hide_dot_files : 1; /* Set hidden flag on dot files. */
unsigned force : 1; /* RW mount dirty volume. */
unsigned noacsrules : 1; /* Exclude acs rules. */
unsigned prealloc : 1; /* Preallocate space when file is growing. */
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index 86ff55133faf..067a0e9cf590 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -247,6 +247,7 @@ enum Opt {
Opt_force,
Opt_sparse,
Opt_nohidden,
+ Opt_hide_dot_files,
Opt_showmeta,
Opt_acl,
Opt_iocharset,
@@ -266,6 +267,7 @@ static const struct fs_parameter_spec ntfs_fs_parameters[] = {
fsparam_flag_no("force", Opt_force),
fsparam_flag_no("sparse", Opt_sparse),
fsparam_flag_no("hidden", Opt_nohidden),
+ fsparam_flag_no("hidedotfiles", Opt_hide_dot_files),
fsparam_flag_no("acl", Opt_acl),
fsparam_flag_no("showmeta", Opt_showmeta),
fsparam_flag_no("prealloc", Opt_prealloc),
@@ -357,6 +359,9 @@ static int ntfs_fs_parse_param(struct fs_context *fc,
case Opt_nohidden:
opts->nohidden = result.negated ? 1 : 0;
break;
+ case Opt_hide_dot_files:
+ opts->hide_dot_files = result.negated ? 1 : 0;
+ break;
case Opt_acl:
if (!result.negated)
#ifdef CONFIG_NTFS3_FS_POSIX_ACL
--
2.37.0