Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Roberto Sassu <roberto.sassu@huaweicloud.com>
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 <roberto.sassu@huawei.com>
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>
In-Reply-To: <20230904133415.1799503-1-roberto.sassu@huaweicloud.com>
References: <20230904133415.1799503-1-roberto.sassu@huaweicloud.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Roberto Sassu <roberto.sassu@huawei.com>

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 <roberto.sassu@huawei.com>
---
 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))
-- 
2.34.1