From patchwork Fri Mar 3 18:18:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13159364 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 A423DC7EE2D for ; Fri, 3 Mar 2023 18:37:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231225AbjCCShm (ORCPT ); Fri, 3 Mar 2023 13:37:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231822AbjCCShh (ORCPT ); Fri, 3 Mar 2023 13:37:37 -0500 Received: from frasgout13.his.huawei.com (frasgout13.his.huawei.com [14.137.139.46]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1BBC60D5A; Fri, 3 Mar 2023 10:37:26 -0800 (PST) Received: from mail02.huawei.com (unknown [172.18.147.227]) by frasgout13.his.huawei.com (SkyGuard) with ESMTP id 4PSwyy3pmDz9xrpw; Sat, 4 Mar 2023 02:11:38 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP2 (Coremail) with SMTP id GxC2BwBnMVgKOgJk5iFpAQ--.12605S7; Fri, 03 Mar 2023 19:19:55 +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 05/28] ima: Align ima_inode_setxattr() definition with LSM infrastructure Date: Fri, 3 Mar 2023 19:18:19 +0100 Message-Id: <20230303181842.1087717-6-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--.12605S7 X-Coremail-Antispam: 1UD129KBjvJXoWxJF1DKw1xZrWUtFy3uFy5XFb_yoW5AF15pF s5Ja48Gw1FqFy7WryFya17u39Y93yrWryUurWDK3Z2yFnxtryxtFyfJr1j9ry5Zr48Gr1v qanIqrs0kw13trJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 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/1tbiAgAFBF1jj4YvdQAAsu X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: keyrings@vger.kernel.org From: Roberto Sassu Change ima_inode_setxattr() definition, so that it can be registered as implementation of the inode_setxattr hook. Signed-off-by: Roberto Sassu Reviewed-by: Stefan Berger --- include/linux/ima.h | 11 +++++++---- security/integrity/ima/ima_appraise.c | 5 +++-- security/security.c | 2 +- 3 files changed, 11 insertions(+), 7 deletions(-) diff --git a/include/linux/ima.h b/include/linux/ima.h index dd216afab6c..6ec6725e3ad 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -194,8 +194,9 @@ static inline void ima_post_key_create_or_update(struct key *keyring, extern bool is_ima_appraise_enabled(void); extern void ima_inode_post_setattr(struct mnt_idmap *idmap, 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_setxattr(struct mnt_idmap *idmap, struct dentry *dentry, + const char *xattr_name, const void *xattr_value, + size_t xattr_value_len, int flags); extern int ima_inode_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, const char *acl_name, struct posix_acl *kacl); @@ -218,10 +219,12 @@ static inline void ima_inode_post_setattr(struct mnt_idmap *idmap, return; } -static inline int ima_inode_setxattr(struct dentry *dentry, +static inline int ima_inode_setxattr(struct mnt_idmap *idmap, + struct dentry *dentry, const char *xattr_name, const void *xattr_value, - size_t xattr_value_len) + size_t xattr_value_len, + int flags) { return 0; } diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c index 6b032bce4fe..88c5a0b2992 100644 --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c @@ -748,8 +748,9 @@ static int validate_hash_algo(struct dentry *dentry, return -EACCES; } -int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name, - const void *xattr_value, size_t xattr_value_len) +int ima_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry, + const char *xattr_name, const void *xattr_value, + size_t xattr_value_len, int flags) { const struct evm_ima_xattr_data *xvalue = xattr_value; int digsig = 0; diff --git a/security/security.c b/security/security.c index 8d31b739879..51612dcf05b 100644 --- a/security/security.c +++ b/security/security.c @@ -2221,7 +2221,7 @@ int security_inode_setxattr(struct mnt_idmap *idmap, ret = cap_inode_setxattr(dentry, name, value, size, flags); if (ret) return ret; - ret = ima_inode_setxattr(dentry, name, value, size); + ret = ima_inode_setxattr(idmap, dentry, name, value, size, flags); if (ret) return ret; return evm_inode_setxattr(idmap, dentry, name, value, size);