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Thu, 28 Aug 2025 13:37:31 -0700 (PDT) From: Ethan Ferguson To: almaz.alexandrovich@paragon-software.com Cc: ntfs3@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Ethan Ferguson Subject: [PATCH 3/3] ntfs3: add FS_IOC_SETFSLABEL ioctl Date: Thu, 28 Aug 2025 16:37:16 -0400 Message-Id: <20250828203716.468564-4-ethan.ferguson@zetier.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250828203716.468564-1-ethan.ferguson@zetier.com> References: <20250828203716.468564-1-ethan.ferguson@zetier.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add support for the FS_IOC_SETFSLABEL ioctl. Signed-off-by: Ethan Ferguson --- 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