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ntfs3: add FS_IOC_SETFSLABEL ioctl 

Add support for the FS_IOC_SETFSLABEL ioctl.

Signed-off-by: Ethan Ferguson <ethan.ferguson@zetier.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
This commit is contained in:
Ethan Ferguson 2025-08-28 16:37:16 -04:00 committed by Konstantin Komarov
parent e4dff97009
commit 21dc07ac9c
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1 changed files with 18 additions and 0 deletions
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18
fs/ntfs3/file.c
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@ -57,6 +57,22 @@ static int ntfs_ioctl_get_volume_label(struct ntfs_sb_info *sbi, u8 __user *buf)
return 0; 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 * 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); return ntfs_ioctl_fitrim(sbi, arg);
case FS_IOC_GETFSLABEL: case FS_IOC_GETFSLABEL:
return ntfs_ioctl_get_volume_label(sbi, (u8 __user *)arg); 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. */ return -ENOTTY; /* Inappropriate ioctl for device. */
} }