From patchwork Tue Nov 7 13:39:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13448670 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74C6530CED; Tue, 7 Nov 2023 13:41:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from frasgout12.his.huawei.com (frasgout12.his.huawei.com [14.137.139.154]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E22A2B0; Tue, 7 Nov 2023 05:41:48 -0800 (PST) Received: from mail02.huawei.com (unknown [172.18.147.229]) by frasgout12.his.huawei.com (SkyGuard) with ESMTP id 4SPpqv0sL9z9y5D8; Tue, 7 Nov 2023 21:25:31 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP2 (Coremail) with SMTP id GxC2BwDHdmBmPkplW202AA--.56782S3; Tue, 07 Nov 2023 14:41:21 +0100 (CET) From: Roberto Sassu To: viro@zeniv.linux.org.uk, brauner@kernel.org, chuck.lever@oracle.com, jlayton@kernel.org, neilb@suse.de, kolga@netapp.com, Dai.Ngo@oracle.com, tom@talpey.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, dhowells@redhat.com, jarkko@kernel.org, stephen.smalley.work@gmail.com, eparis@parisplace.org, casey@schaufler-ca.com, mic@digikod.net Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-security-module@vger.kernel.org, linux-integrity@vger.kernel.org, keyrings@vger.kernel.org, selinux@vger.kernel.org, Roberto Sassu , Stefan Berger Subject: [PATCH v5 01/23] ima: Align ima_inode_post_setattr() definition with LSM infrastructure Date: Tue, 7 Nov 2023 14:39:50 +0100 Message-Id: <20231107134012.682009-2-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231107134012.682009-1-roberto.sassu@huaweicloud.com> References: <20231107134012.682009-1-roberto.sassu@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: GxC2BwDHdmBmPkplW202AA--.56782S3 X-Coremail-Antispam: 1UD129KBjvJXoWxAF45Zw48Zw4xCry5ur1DAwb_yoW5Xw1xpa 95G3WDG34ruFW8Wr95Aa17A3yF9FyUWFy7W3yFg3yIyFnxtr12qFn3Kry3Cry5CrW8Kr90 qF1jgrs8Cw1ayrJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBYb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUGw A2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVWUJVWUCwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV WxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ Gr0_Gr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMc Ij6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_ Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1l42xK82IYc2Ij64 vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8G jcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a6rW5MIIYrxkI7VAKI48JMIIF0xvE2I x0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAI w20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x 0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU1cdbUUUUUU== X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAQAOBF1jj5YbcAAAsH X-CFilter-Loop: Reflected From: Roberto Sassu Change ima_inode_post_setattr() definition, so that it can be registered as implementation of the inode_post_setattr hook (to be introduced). Signed-off-by: Roberto Sassu Reviewed-by: Stefan Berger Reviewed-by: Casey Schaufler --- fs/attr.c | 2 +- include/linux/ima.h | 4 ++-- security/integrity/ima/ima_appraise.c | 3 ++- 3 files changed, 5 insertions(+), 4 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index bdf5deb06ea9..9bddc0a6352c 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -502,7 +502,7 @@ int notify_change(struct mnt_idmap *idmap, struct dentry *dentry, if (!error) { fsnotify_change(dentry, ia_valid); - ima_inode_post_setattr(idmap, dentry); + ima_inode_post_setattr(idmap, dentry, ia_valid); evm_inode_post_setattr(dentry, ia_valid); } diff --git a/include/linux/ima.h b/include/linux/ima.h index 86b57757c7b1..910a2f11a906 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -186,7 +186,7 @@ static inline void ima_post_key_create_or_update(struct key *keyring, #ifdef CONFIG_IMA_APPRAISE extern bool is_ima_appraise_enabled(void); extern void ima_inode_post_setattr(struct mnt_idmap *idmap, - struct dentry *dentry); + struct dentry *dentry, int ia_valid); extern int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name, const void *xattr_value, size_t xattr_value_len); extern int ima_inode_set_acl(struct mnt_idmap *idmap, @@ -206,7 +206,7 @@ static inline bool is_ima_appraise_enabled(void) } static inline void ima_inode_post_setattr(struct mnt_idmap *idmap, - struct dentry *dentry) + struct dentry *dentry, int ia_valid) { return; } diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c index 870dde67707b..36c2938a5c69 100644 --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c @@ -629,6 +629,7 @@ void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file) * ima_inode_post_setattr - reflect file metadata changes * @idmap: idmap of the mount the inode was found from * @dentry: pointer to the affected dentry + * @ia_valid: for the UID and GID status * * Changes to a dentry's metadata might result in needing to appraise. * @@ -636,7 +637,7 @@ void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file) * to lock the inode's i_mutex. */ void ima_inode_post_setattr(struct mnt_idmap *idmap, - struct dentry *dentry) + struct dentry *dentry, int ia_valid) { struct inode *inode = d_backing_inode(dentry); struct integrity_iint_cache *iint;