From patchwork Mon Jan 15 18:17:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13519921 X-Patchwork-Delegate: paul@paul-moore.com Received: from frasgout11.his.huawei.com (frasgout11.his.huawei.com [14.137.139.23]) (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 03B9818B02; Mon, 15 Jan 2024 18:20:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.18.186.29]) by frasgout11.his.huawei.com (SkyGuard) with ESMTP id 4TDKnx4b4pz9xrcl; Tue, 16 Jan 2024 02:06:13 +0800 (CST) Received: from mail02.huawei.com (unknown [7.182.16.27]) by mail.maildlp.com (Postfix) with ESMTP id 51AF4140A11; Tue, 16 Jan 2024 02:20:45 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP2 (Coremail) with SMTP id GxC2BwAXBCjzdqVl8DKbAA--.57127S11; Mon, 15 Jan 2024 19:20:44 +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, eric.snowberg@oracle.com, dhowells@redhat.com, jarkko@kernel.org, stephen.smalley.work@gmail.com, eparis@parisplace.org, casey@schaufler-ca.com, shuah@kernel.org, mic@digikod.net Cc: linux-kernel@vger.kernel.org, linux-fsdevel@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, linux-kselftest@vger.kernel.org, Roberto Sassu , Stefan Berger Subject: [PATCH v9 09/25] security: Align inode_setattr hook definition with EVM Date: Mon, 15 Jan 2024 19:17:53 +0100 Message-Id: <20240115181809.885385-10-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240115181809.885385-1-roberto.sassu@huaweicloud.com> References: <20240115181809.885385-1-roberto.sassu@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: GxC2BwAXBCjzdqVl8DKbAA--.57127S11 X-Coremail-Antispam: 1UD129KBjvJXoWxAw47tr4fJFWrKr17ury7Awb_yoW5ur18pF 4UJ3ZxGr4rXFy7Wr1vkF45ua1S9FWfurWUArWjgw1SyF92qr1IgFyxGr1jkF15GrWUGrnF qFsFvrs8Wr15ArJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBvb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAV Cq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0 rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWUCVW8JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267 AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv6xkF7I0E 14v26r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrV C2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE 7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCF04k20x vY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I 3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIx AIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJwCI 42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcVC2z2 80aVCY1x0267AKxVW8Jr0_Cr1UYxBIdaVFxhVjvjDU0xZFpf9x07UZo7tUUUUU= X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAQADBF1jj5iRzQAAsz From: Roberto Sassu Add the idmap parameter to the definition, so that evm_inode_setattr() can be registered as this hook implementation. Signed-off-by: Roberto Sassu Reviewed-by: Stefan Berger Acked-by: Casey Schaufler Reviewed-by: Mimi Zohar Acked-by: Paul Moore --- include/linux/lsm_hook_defs.h | 3 ++- security/security.c | 2 +- security/selinux/hooks.c | 3 ++- security/smack/smack_lsm.c | 4 +++- 4 files changed, 8 insertions(+), 4 deletions(-) diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h index 185924c56378..a843bb5f6f4b 100644 --- a/include/linux/lsm_hook_defs.h +++ b/include/linux/lsm_hook_defs.h @@ -135,7 +135,8 @@ LSM_HOOK(int, 0, inode_readlink, struct dentry *dentry) LSM_HOOK(int, 0, inode_follow_link, struct dentry *dentry, struct inode *inode, bool rcu) LSM_HOOK(int, 0, inode_permission, struct inode *inode, int mask) -LSM_HOOK(int, 0, inode_setattr, struct dentry *dentry, struct iattr *attr) +LSM_HOOK(int, 0, inode_setattr, struct mnt_idmap *idmap, struct dentry *dentry, + struct iattr *attr) LSM_HOOK(int, 0, inode_getattr, const struct path *path) LSM_HOOK(int, 0, inode_setxattr, struct mnt_idmap *idmap, struct dentry *dentry, const char *name, const void *value, diff --git a/security/security.c b/security/security.c index ab847af2c74d..1d332e294704 100644 --- a/security/security.c +++ b/security/security.c @@ -2215,7 +2215,7 @@ int security_inode_setattr(struct mnt_idmap *idmap, if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) return 0; - ret = call_int_hook(inode_setattr, 0, dentry, attr); + ret = call_int_hook(inode_setattr, 0, idmap, dentry, attr); if (ret) return ret; return evm_inode_setattr(idmap, dentry, attr); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 179540441115..dae53d7778bb 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3128,7 +3128,8 @@ static int selinux_inode_permission(struct inode *inode, int mask) return rc; } -static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr) +static int selinux_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, + struct iattr *iattr) { const struct cred *cred = current_cred(); struct inode *inode = d_backing_inode(dentry); diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index c126f6a16de4..9b75216d4a58 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -1232,12 +1232,14 @@ static int smack_inode_permission(struct inode *inode, int mask) /** * smack_inode_setattr - Smack check for setting attributes + * @idmap: idmap of the mount * @dentry: the object * @iattr: for the force flag * * Returns 0 if access is permitted, an error code otherwise */ -static int smack_inode_setattr(struct dentry *dentry, struct iattr *iattr) +static int smack_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, + struct iattr *iattr) { struct smk_audit_info ad; int rc;