From patchwork Tue Nov 7 13:39:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13448674 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C04C330CED; Tue, 7 Nov 2023 13:42:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from frasgout11.his.huawei.com (frasgout11.his.huawei.com [14.137.139.23]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8B5511D; Tue, 7 Nov 2023 05:42:38 -0800 (PST) Received: from mail02.huawei.com (unknown [172.18.147.228]) by frasgout11.his.huawei.com (SkyGuard) with ESMTP id 4SPpwC1d8vz9y50D; Tue, 7 Nov 2023 21:29:15 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP2 (Coremail) with SMTP id GxC2BwDHdmBmPkplW202AA--.56782S7; Tue, 07 Nov 2023 14:42:10 +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 05/23] ima: Align ima_post_read_file() definition with LSM infrastructure Date: Tue, 7 Nov 2023 14:39:54 +0100 Message-Id: <20231107134012.682009-6-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> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: GxC2BwDHdmBmPkplW202AA--.56782S7 X-Coremail-Antispam: 1UD129KBjvJXoW7Cw4ftr1DJFyxAF43trWkZwb_yoW8uF1rp3 Z8Ka4UGrZYgry8CF97Ja9xA34rWr9FgF4UWFZ3W3sIqF17Xr1qvrZxCF1q9r1rKrWkArn0 93yqgrZIk3WUtrJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 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/1tbiAgAOBF1jj5IbbQAAsd X-CFilter-Loop: Reflected From: Roberto Sassu Change ima_post_read_file() definition, by making "void *buf" a "char *buf", so that it can be registered as implementation of the post_read_file hook. Signed-off-by: Roberto Sassu Reviewed-by: Stefan Berger Reviewed-by: Casey Schaufler --- include/linux/ima.h | 4 ++-- security/integrity/ima/ima_main.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/ima.h b/include/linux/ima.h index 678a03fddd7e..31ef6c3c3207 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -30,7 +30,7 @@ extern int ima_post_load_data(char *buf, loff_t size, enum kernel_load_data_id id, char *description); extern int ima_read_file(struct file *file, enum kernel_read_file_id id, bool contents); -extern int ima_post_read_file(struct file *file, void *buf, loff_t size, +extern int ima_post_read_file(struct file *file, char *buf, loff_t size, enum kernel_read_file_id id); extern void ima_post_path_mknod(struct mnt_idmap *idmap, struct dentry *dentry); @@ -108,7 +108,7 @@ static inline int ima_read_file(struct file *file, enum kernel_read_file_id id, return 0; } -static inline int ima_post_read_file(struct file *file, void *buf, loff_t size, +static inline int ima_post_read_file(struct file *file, char *buf, loff_t size, enum kernel_read_file_id id) { return 0; diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index b3f5e8401056..02021ee467d3 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -803,7 +803,7 @@ const int read_idmap[READING_MAX_ID] = { * On success return 0. On integrity appraisal error, assuming the file * is in policy and IMA-appraisal is in enforcing mode, return -EACCES. */ -int ima_post_read_file(struct file *file, void *buf, loff_t size, +int ima_post_read_file(struct file *file, char *buf, loff_t size, enum kernel_read_file_id read_id) { enum ima_hooks func;