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Message-Id: <20230831104136.903180-12-roberto.sassu@huaweicloud.com>
Date: Thu, 31 Aug 2023 12:41:22 +0200
From: Roberto Sassu <roberto.sassu@...weicloud.com>
To: viro@...iv.linux.org.uk, brauner@...nel.org,
chuck.lever@...cle.com, jlayton@...nel.org, neilb@...e.de,
kolga@...app.com, Dai.Ngo@...cle.com, tom@...pey.com,
zohar@...ux.ibm.com, dmitry.kasatkin@...il.com,
paul@...l-moore.com, jmorris@...ei.org, serge@...lyn.com,
dhowells@...hat.com, jarkko@...nel.org,
stephen.smalley.work@...il.com, eparis@...isplace.org,
casey@...aufler-ca.com
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-nfs@...r.kernel.org, linux-integrity@...r.kernel.org,
linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
selinux@...r.kernel.org, Roberto Sassu <roberto.sassu@...wei.com>,
Stefan Berger <stefanb@...ux.ibm.com>
Subject: [PATCH v2 11/25] security: Align inode_setattr hook definition with EVM
From: Roberto Sassu <roberto.sassu@...wei.com>
Add the idmap parameter to the definition, so that evm_inode_setattr() can
be registered as this hook implementation.
Signed-off-by: Roberto Sassu <roberto.sassu@...wei.com>
Reviewed-by: Stefan Berger <stefanb@...ux.ibm.com>
Acked-by: Casey Schaufler <casey@...aufler-ca.com>
---
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 4bdddb52a8fe..fdf075a6b1bb 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -134,7 +134,8 @@ 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 cb6242feb968..2b24d01cf181 100644
--- a/security/security.c
+++ b/security/security.c
@@ -2117,7 +2117,7 @@ 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 ee7c49c2cfd3..bfcc4d9aa5ab 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3075,7 +3075,8 @@ 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 679156601a10..89f2669d50a9 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1181,12 +1181,14 @@ 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;
--
2.34.1
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