diff options
| author | Christian Brauner <brauner@kernel.org> | 2024-04-16 13:20:50 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-04-23 10:39:07 +0300 |
| commit | 9b872cc50daa7d1cb07d5bfd27ee9fa3f4e7eda9 (patch) | |
| tree | f213d71bc963d7847a46b1a716552836c4f0e3ab /fs/ntfs3/inode.c | |
| parent | d55f90e9b243faa5bcd5c8a323a8f43040500106 (diff) | |
| download | linux-9b872cc50daa7d1cb07d5bfd27ee9fa3f4e7eda9.tar.xz | |
ntfs3: add legacy ntfs file operations
To ensure that ioctl()s can't be used to circumvent write restrictions.
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/ntfs3/inode.c')
| -rw-r--r-- | fs/ntfs3/inode.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c index eb7a8c9fba01..d273eda1cf45 100644 --- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -440,7 +440,10 @@ end_enum: * Usually a hard links to directories are disabled. */ inode->i_op = &ntfs_dir_inode_operations; - inode->i_fop = &ntfs_dir_operations; + if (is_legacy_ntfs(inode->i_sb)) + inode->i_fop = &ntfs_legacy_dir_operations; + else + inode->i_fop = &ntfs_dir_operations; ni->i_valid = 0; } else if (S_ISLNK(mode)) { ni->std_fa &= ~FILE_ATTRIBUTE_DIRECTORY; @@ -450,7 +453,10 @@ end_enum: } else if (S_ISREG(mode)) { ni->std_fa &= ~FILE_ATTRIBUTE_DIRECTORY; inode->i_op = &ntfs_file_inode_operations; - inode->i_fop = &ntfs_file_operations; + if (is_legacy_ntfs(inode->i_sb)) + inode->i_fop = &ntfs_legacy_file_operations; + else + inode->i_fop = &ntfs_file_operations; inode->i_mapping->a_ops = is_compressed(ni) ? &ntfs_aops_cmpr : &ntfs_aops; if (ino != MFT_REC_MFT) @@ -1614,7 +1620,10 @@ struct inode *ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir, if (S_ISDIR(mode)) { inode->i_op = &ntfs_dir_inode_operations; - inode->i_fop = &ntfs_dir_operations; + if (is_legacy_ntfs(inode->i_sb)) + inode->i_fop = &ntfs_legacy_dir_operations; + else + inode->i_fop = &ntfs_dir_operations; } else if (S_ISLNK(mode)) { inode->i_op = &ntfs_link_inode_operations; inode->i_fop = NULL; @@ -1623,7 +1632,10 @@ struct inode *ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir, inode_nohighmem(inode); } else if (S_ISREG(mode)) { inode->i_op = &ntfs_file_inode_operations; - inode->i_fop = &ntfs_file_operations; + if (is_legacy_ntfs(inode->i_sb)) + inode->i_fop = &ntfs_legacy_file_operations; + else + inode->i_fop = &ntfs_file_operations; inode->i_mapping->a_ops = is_compressed(ni) ? &ntfs_aops_cmpr : &ntfs_aops; init_rwsem(&ni->file.run_lock); |