From:   Roberto Sassu <roberto.sassu@huaweicloud.com>
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 <roberto.sassu@huawei.com>
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>
In-Reply-To: <20230303181842.1087717-1-roberto.sassu@huaweicloud.com>
References: <20230303181842.1087717-1-roberto.sassu@huaweicloud.com>
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From: Roberto Sassu <roberto.sassu@huawei.com>

Change ima_inode_setxattr() definition, so that it can be registered as
implementation of the inode_setxattr hook.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
---
 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);
-- 
2.25.1