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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 12 Dec 2018 04:08:57 -0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id wBC48t4o18677966 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 12 Dec 2018 04:08:56 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D702A112062; Wed, 12 Dec 2018 04:08:55 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F08BA112061; Wed, 12 Dec 2018 04:08:47 +0000 (GMT) Received: from localhost.localdomain.com (unknown [9.199.35.96]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 12 Dec 2018 04:08:47 +0000 (GMT) From: Chandan Rajendra To: linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-doc@vger.kernel.org, linux-mips@linux-mips.org, linux-s390@vger.kernel.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org Cc: Chandan Rajendra , tytso@mit.edu, adilger.kernel@dilger.ca, ebiggers@kernel.org, jaegeuk@kernel.org, yuchao0@huawei.com, corbet@lwn.net, ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org, green.hu@gmail.com, deanbo422@gmail.com, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, richard@nod.at, dedekind1@gmail.com, adrian.hunter@intel.com, viro@zeniv.linux.org.uk Subject: [PATCH V4 8/9] fsverity: Move verity status check to fsverity_file_open Date: Wed, 12 Dec 2018 09:37:35 +0530 X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181212040736.2849-1-chandan@linux.vnet.ibm.com> References: <20181212040736.2849-1-chandan@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 18121204-0072-0000-0000-000003D81AAC X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010214; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000270; SDB=6.01130510; UDB=6.00582089; IPR=6.00910643; MB=3.00024660; MTD=3.00000008; XFM=3.00000015; UTC=2018-12-12 04:09:02 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18121204-0073-0000-0000-00004A69EE00 Message-Id: <20181212040736.2849-9-chandan@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-12-12_01:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1812120032 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Instead of conditionally checking for verity status of an inode before invoking fsverity_file_open(), this commit moves the check inside the definition of fsverity_file_open(). Signed-off-by: Chandan Rajendra --- fs/ext4/file.c | 8 +++----- fs/f2fs/file.c | 8 +++----- fs/verity/setup.c | 3 +++ include/linux/fsverity.h | 5 ++++- 4 files changed, 13 insertions(+), 11 deletions(-) diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 30fbd663354f..b404a857cd48 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -444,11 +444,9 @@ static int ext4_file_open(struct inode * inode, struct file * filp) if (ret) return ret; - if (IS_VERITY(inode)) { - ret = fsverity_file_open(inode, filp); - if (ret) - return ret; - } + ret = fsverity_file_open(inode, filp); + if (ret) + return ret; /* * Set up the jbd2_inode if we are opening the inode for diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 2eb4821d95d1..925c0d9608da 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -491,11 +491,9 @@ static int f2fs_file_open(struct inode *inode, struct file *filp) if (err) return err; - if (IS_VERITY(inode)) { - err = fsverity_file_open(inode, filp); - if (err) - return err; - } + err = fsverity_file_open(inode, filp); + if (err) + return err; filp->f_mode |= FMODE_NOWAIT; diff --git a/fs/verity/setup.c b/fs/verity/setup.c index 08b609127531..bc463dc601b1 100644 --- a/fs/verity/setup.c +++ b/fs/verity/setup.c @@ -771,6 +771,9 @@ static int setup_fsverity_info(struct inode *inode) */ int fsverity_file_open(struct inode *inode, struct file *filp) { + if (!IS_VERITY(inode)) + return 0; + if (filp->f_mode & FMODE_WRITE) { pr_debug("Denying opening verity file (ino %lu) for write\n", inode->i_ino); diff --git a/include/linux/fsverity.h b/include/linux/fsverity.h index ea8c418bd7d5..c770025606e1 100644 --- a/include/linux/fsverity.h +++ b/include/linux/fsverity.h @@ -60,7 +60,10 @@ static inline int fsverity_ioctl_measure(struct file *filp, void __user *arg) static inline int fsverity_file_open(struct inode *inode, struct file *filp) { - return -EOPNOTSUPP; + if (IS_VERITY(inode)) + return -EOPNOTSUPP; + + return 0; } static inline int fsverity_prepare_setattr(struct dentry *dentry,