From patchwork Thu Aug 31 10:41:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13371247 X-Patchwork-Delegate: paul@paul-moore.com 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 54A86C83F33 for ; Thu, 31 Aug 2023 10:44:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242083AbjHaKoy (ORCPT ); Thu, 31 Aug 2023 06:44:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231699AbjHaKow (ORCPT ); Thu, 31 Aug 2023 06:44:52 -0400 Received: from frasgout11.his.huawei.com (unknown [14.137.139.23]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60436E4F; Thu, 31 Aug 2023 03:44:32 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.18.147.229]) by frasgout11.his.huawei.com (SkyGuard) with ESMTP id 4RbyCb0PyTz9v7gP; Thu, 31 Aug 2023 18:32:27 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP1 (Coremail) with SMTP id LxC2BwBXC7t9bvBkiGfdAQ--.39787S10; Thu, 31 Aug 2023 11:44:03 +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, 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 Cc: linux-fsdevel@vger.kernel.org, linux-kernel@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, Roberto Sassu , Stefan Berger Subject: [PATCH v2 08/25] evm: Align evm_inode_post_setattr() definition with LSM infrastructure Date: Thu, 31 Aug 2023 12:41:19 +0200 Message-Id: <20230831104136.903180-9-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230831104136.903180-1-roberto.sassu@huaweicloud.com> References: <20230831104136.903180-1-roberto.sassu@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: LxC2BwBXC7t9bvBkiGfdAQ--.39787S10 X-Coremail-Antispam: 1UD129KBjvJXoWxuF43Cw43Jr43Jw1xWF1ftFb_yoW5Ww1xpF Z5K3Wvkw1F9ryUWr95GF48ZayFgFy8WryUX3yFgw1YyFnrKrnIqFn3K3yUAry5GrW8Wrn0 qFnFvrs5Ar15A3DanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBIb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAV Cq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0 rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267 AKxVWxJr0_GcWl84ACjcxK6I8E87Iv67AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIEc7CjxVAF wI0_Cr1j6rxdM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7 xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Y z7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a6rW5MIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Xr0_Ar1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4UJVW0owCI42IY 6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcVC2z280aV CY1x0267AKxVWxJr0_GcJvcSsGvfC2KfnxnUUI43ZEXa7IUbGXdUUUUUU== X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAgAGBF1jj49c5wAAsF X-CFilter-Loop: Reflected Precedence: bulk List-ID: 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 7d4553c1208d..431f667726c7 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -487,7 +487,7 @@ 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 01fc495a83e2..aebaae181fd9 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); +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); @@ -97,7 +98,8 @@ 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 ff9a939dad8e..d2f986a55d38 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -841,6 +841,7 @@ 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 * @@ -850,7 +851,8 @@ 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;