From patchwork Mon Sep 4 13:33:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13373923 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 BF408CA0FF7 for ; Mon, 4 Sep 2023 13:35:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353060AbjIDNfv (ORCPT ); Mon, 4 Sep 2023 09:35:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46512 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234216AbjIDNfv (ORCPT ); Mon, 4 Sep 2023 09:35:51 -0400 Received: from frasgout11.his.huawei.com (unknown [14.137.139.23]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FD8FE58; Mon, 4 Sep 2023 06:35:42 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.18.147.228]) by frasgout11.his.huawei.com (SkyGuard) with ESMTP id 4RfTq81b3Hz9xHvy; Mon, 4 Sep 2023 21:23:32 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP1 (Coremail) with SMTP id LxC2BwDHerrf3PVkUqceAg--.16511S5; Mon, 04 Sep 2023 14:35:13 +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 Subject: [PATCH v3 03/25] ima: Align ima_post_create_tmpfile() definition with LSM infrastructure Date: Mon, 4 Sep 2023 15:33:53 +0200 Message-Id: <20230904133415.1799503-4-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230904133415.1799503-1-roberto.sassu@huaweicloud.com> References: <20230904133415.1799503-1-roberto.sassu@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: LxC2BwDHerrf3PVkUqceAg--.16511S5 X-Coremail-Antispam: 1UD129KBjvJXoWxJF1fWrWUtrW3tr4DKryDZFb_yoW5Xw48pF s3Kw1UGrZ5Wry29FykJayDZryfKayqqr4UZrWfW3s0yF1vqr1FvF1fCFnIkF13JFWrCry2 v3y5KrWDAr1UKFJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBab4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUWw A2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVWUJVWUCwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV W8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2 WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkE bVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJwCI42IY 6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aV CY1x0267AKxVW8Jr0_Cr1UYxBIdaVFxhVjvjDU0xZFpf9x07UAkuxUUUUU= X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAgAKBF1jj4+BUAAAsj X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org From: Roberto Sassu Change ima_post_create_tmpfile() definition, so that it can be registered as implementation of the post_create_tmpfile hook. Signed-off-by: Roberto Sassu Reviewed-by: Stefan Berger --- fs/namei.c | 2 +- include/linux/ima.h | 7 +++++-- security/integrity/ima/ima_main.c | 8 ++++++-- 3 files changed, 12 insertions(+), 5 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index c5e96f716f98..1f5ec71360de 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3698,7 +3698,7 @@ static int vfs_tmpfile(struct mnt_idmap *idmap, inode->i_state |= I_LINKABLE; spin_unlock(&inode->i_lock); } - ima_post_create_tmpfile(idmap, inode); + ima_post_create_tmpfile(idmap, dir, file, mode); return 0; } diff --git a/include/linux/ima.h b/include/linux/ima.h index 179ce52013b2..893c3b98b4d0 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -19,7 +19,8 @@ extern enum hash_algo ima_get_current_hash_algo(void); extern int ima_bprm_check(struct linux_binprm *bprm); extern int ima_file_check(struct file *file, int mask); extern void ima_post_create_tmpfile(struct mnt_idmap *idmap, - struct inode *inode); + struct inode *dir, struct file *file, + umode_t mode); extern void ima_file_free(struct file *file); extern int ima_file_mmap(struct file *file, unsigned long reqprot, unsigned long prot, unsigned long flags); @@ -69,7 +70,9 @@ static inline int ima_file_check(struct file *file, int mask) } static inline void ima_post_create_tmpfile(struct mnt_idmap *idmap, - struct inode *inode) + struct inode *dir, + struct file *file, + umode_t mode) { } diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 76eba92d7f10..52e742d32f4b 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -663,16 +663,20 @@ EXPORT_SYMBOL_GPL(ima_inode_hash); /** * ima_post_create_tmpfile - mark newly created tmpfile as new * @idmap: idmap of the mount the inode was found from - * @inode: inode of the newly created tmpfile + * @dir: inode structure of the parent of the new file + * @file: file descriptor of the new file + * @mode: mode of the new file * * No measuring, appraising or auditing of newly created tmpfiles is needed. * Skip calling process_measurement(), but indicate which newly, created * tmpfiles are in policy. */ void ima_post_create_tmpfile(struct mnt_idmap *idmap, - struct inode *inode) + struct inode *dir, struct file *file, + umode_t mode) { struct integrity_iint_cache *iint; + struct inode *inode = file_inode(file); int must_appraise; if (!ima_policy_flag || !S_ISREG(inode->i_mode))