From patchwork Tue Nov 7 13:39:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13448733 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 5D08BC41535 for ; Tue, 7 Nov 2023 13:42:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234330AbjKGNm5 (ORCPT ); Tue, 7 Nov 2023 08:42:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234562AbjKGNmx (ORCPT ); Tue, 7 Nov 2023 08:42:53 -0500 Received: from frasgout13.his.huawei.com (frasgout13.his.huawei.com [14.137.139.46]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71FA4C1; Tue, 7 Nov 2023 05:42:50 -0800 (PST) Received: from mail02.huawei.com (unknown [172.18.147.227]) by frasgout13.his.huawei.com (SkyGuard) with ESMTP id 4SPpwT5SnVz9y1BL; Tue, 7 Nov 2023 21:29:29 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP2 (Coremail) with SMTP id GxC2BwDHdmBmPkplW202AA--.56782S8; Tue, 07 Nov 2023 14:42:22 +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 06/23] evm: Align evm_inode_post_setattr() definition with LSM infrastructure Date: Tue, 7 Nov 2023 14:39:55 +0100 Message-Id: <20231107134012.682009-7-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> MIME-Version: 1.0 X-CM-TRANSID: GxC2BwDHdmBmPkplW202AA--.56782S8 X-Coremail-Antispam: 1UD129KBjvJXoWxuF4fuFy5GFWkXry7uFWrGrg_yoW5Ar1fpF Z5K3WkCw1ruryUWr95GF48Za1FgFyrWryUX3yFgw1YyFnrtrnFqFn7G3yUAry5GrW8Wrn0 qFnFvrn5Ar15A3DanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBvb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAV Cq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0 rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWUCVW8JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267 AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv6xkF7I0E 14v26r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrV C2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE 7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCF04k20x vY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I 3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIx AIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJwCI 42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z2 80aVCY1x0267AKxVW8Jr0_Cr1UYxBIdaVFxhVjvjDU0xZFpf9x07UZo7tUUUUU= X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAgAOBF1jj5IbbQABsc 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 (to be introduced). Signed-off-by: Roberto Sassu Reviewed-by: Stefan Berger Reviewed-by: Casey Schaufler --- 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 9bddc0a6352c..498e673bdf06 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -503,7 +503,7 @@ 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..cf976d8dbd7a 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); @@ -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 894570fe39bc..d452d469c503 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -840,6 +840,7 @@ 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 * @@ -849,7 +850,8 @@ 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;