From patchwork Fri Mar 3 18:18:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13159367 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8584C7EE2D for ; Fri, 3 Mar 2023 18:38:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231869AbjCCSiQ (ORCPT ); Fri, 3 Mar 2023 13:38:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231872AbjCCSiD (ORCPT ); Fri, 3 Mar 2023 13:38:03 -0500 Received: from frasgout12.his.huawei.com (frasgout12.his.huawei.com [14.137.139.154]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8908618A8; Fri, 3 Mar 2023 10:37:40 -0800 (PST) Received: from mail02.huawei.com (unknown [172.18.147.227]) by frasgout12.his.huawei.com (SkyGuard) with ESMTP id 4PSwz02dFPz9xtRy; Sat, 4 Mar 2023 02:11:40 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP2 (Coremail) with SMTP id GxC2BwBnMVgKOgJk5iFpAQ--.12605S10; Fri, 03 Mar 2023 19:20:27 +0100 (CET) From: Roberto Sassu To: viro@zeniv.linux.org.uk, chuck.lever@oracle.com, jlayton@kernel.org, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, dhowells@redhat.com, jarkko@kernel.org, stephen.smalley.work@gmail.com, eparis@parisplace.org, casey@schaufler-ca.com, brauner@kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, keyrings@vger.kernel.org, selinux@vger.kernel.org, linux-kernel@vger.kernel.org, stefanb@linux.ibm.com, Roberto Sassu Subject: [PATCH 08/28] evm: Align evm_inode_post_setattr() definition with LSM infrastructure Date: Fri, 3 Mar 2023 19:18:22 +0100 Message-Id: <20230303181842.1087717-9-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230303181842.1087717-1-roberto.sassu@huaweicloud.com> References: <20230303181842.1087717-1-roberto.sassu@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: GxC2BwBnMVgKOgJk5iFpAQ--.12605S10 X-Coremail-Antispam: 1UD129KBjvJXoWxJF1fWF1UKw4UAF1rKF4fuFg_yoW5WrWDpF Z5K3Wvkw1F9ryUWr95GF48Za1FgFy8WryUZ3yFgw1YyFnxKrnIqFn7K3yUAry5GrW8Wrn0 qFnFvrs5Zw15Aw7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPqb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAV Cq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0 rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267 AKxVWxJr0_GcWl84ACjcxK6I8E87Iv67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv6xkF7I0E 14v26F4UJVW0owAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I 80ewAv7VC0I7IYx2IY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCj c4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JM4IIrI8v6xkF7I0E8cxan2IY04v7MxkF7I0En4 kS14v26r4a6rW5MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E 5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVW8ZV WrXwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26ryj6F1UMIIF0xvE2Ix0cI8IcVCY 1x0267AKxVWxJr0_GcWlIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14 v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Cr1j6rxdYxBIdaVFxhVjvjDU0xZFpf9x 07j7GYLUUUUU= X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAQAFBF1jj4otVQAAsD X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: keyrings@vger.kernel.org From: Roberto Sassu Change evm_inode_post_setattr() definition, so that it can be registered as implementation of the inode_post_setattr hook. Signed-off-by: Roberto Sassu Reviewed-by: Stefan Berger --- fs/attr.c | 2 +- include/linux/evm.h | 6 ++++-- security/integrity/evm/evm_main.c | 4 +++- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index 5050ab4cc45..da45cf01be6 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -486,7 +486,7 @@ int notify_change(struct mnt_idmap *idmap, struct dentry *dentry, if (!error) { fsnotify_change(dentry, ia_valid); ima_inode_post_setattr(idmap, dentry, ia_valid); - evm_inode_post_setattr(dentry, ia_valid); + evm_inode_post_setattr(idmap, dentry, ia_valid); } return error; diff --git a/include/linux/evm.h b/include/linux/evm.h index cc64cea354e..b41f98791a7 100644 --- a/include/linux/evm.h +++ b/include/linux/evm.h @@ -23,7 +23,8 @@ extern enum integrity_status evm_verifyxattr(struct dentry *dentry, struct integrity_iint_cache *iint); extern int evm_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, struct iattr *attr); -extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid); +extern void evm_inode_post_setattr(struct mnt_idmap *idmap, + struct dentry *dentry, int ia_valid); extern int evm_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *name, const void *value, size_t size); @@ -96,7 +97,8 @@ static inline int evm_inode_setattr(struct mnt_idmap *idmap, return 0; } -static inline void evm_inode_post_setattr(struct dentry *dentry, int ia_valid) +static inline void evm_inode_post_setattr(struct mnt_idmap *idmap, + struct dentry *dentry, int ia_valid) { return; } diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c index 40cfe0d16c8..0cb63dfc998 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -838,6 +838,7 @@ int evm_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, /** * evm_inode_post_setattr - update 'security.evm' after modifying metadata + * @idmap: idmap of the idmapped mount * @dentry: pointer to the affected dentry * @ia_valid: for the UID and GID status * @@ -847,7 +848,8 @@ int evm_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, * This function is called from notify_change(), which expects the caller * to lock the inode's i_mutex. */ -void evm_inode_post_setattr(struct dentry *dentry, int ia_valid) +void evm_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, + int ia_valid) { if (!evm_revalidate_status(NULL)) return;