Add support for the FS_IOC_SETFSLABEL ioctl.
Signed-off-by: Ethan Ferguson <ethan.ferguson@xxxxxxxxxx>
---
fs/ntfs3/file.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 0a1e9f16ffaf..4c90ec2fa2ea 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -57,6 +57,22 @@ static int ntfs_ioctl_get_volume_label(struct ntfs_sb_info *sbi, u8 __user *buf)
return 0;
}
+static int ntfs_ioctl_set_volume_label(struct ntfs_sb_info *sbi, u8 __user *buf)
+{
+ u8 user[FSLABEL_MAX] = {0};
+ int len;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (copy_from_user(user, buf, FSLABEL_MAX))
+ return -EFAULT;
+
+ len = strnlen(user, FSLABEL_MAX);
+
+ return ntfs_set_label(sbi, user, len);
+}
+
/*
* ntfs_ioctl - file_operations::unlocked_ioctl
*/
@@ -74,6 +90,8 @@ long ntfs_ioctl(struct file *filp, u32 cmd, unsigned long arg)
return ntfs_ioctl_fitrim(sbi, arg);
case FS_IOC_GETFSLABEL:
return ntfs_ioctl_get_volume_label(sbi, (u8 __user *)arg);
+ case FS_IOC_SETFSLABEL:
+ return ntfs_ioctl_set_volume_label(sbi, (u8 __user *)arg);
}
return -ENOTTY; /* Inappropriate ioctl for device. */
}
--
2.34.1
