[v4,06/23] evm: Align evm_inode_post_setattr() definition with LSM infrastructure

Commit Message

Roberto Sassu Oct. 27, 2023, 8:35 a.m. UTC

From: Roberto Sassu <[e-mail]>

Change evm_inode_post_setattr() definition, so that it can be registered as
implementation of the inode_post_setattr hook (to be introduced).

Signed-off-by: Roberto Sassu <[e-mail]>
Reviewed-by: Stefan Berger <[e-mail]>
---
 fs/attr.c                         | 2 +-
 include/linux/evm.h               | 6 ++++--
 security/integrity/evm/evm_main.c | 4 +++-
 3 files changed, 8 insertions(+), 4 deletions(-)

Patch

diff --git a/fs/attr.c b/fs/attr.c
index bb658937f16a..9ecafb13a53b 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -503,7 +503,7 @@  int notify_change(struct mnt_idmap *idmap, struct dentry *dentry,
 	if (!error) {
 		fsnotify_change(dentry, ia_valid);
 		ima_inode_post_setattr(idmap, dentry, ia_valid);
-		evm_inode_post_setattr(dentry, ia_valid);
+		evm_inode_post_setattr(idmap, dentry, ia_valid);
 	}
 
 	return error;
diff --git a/include/linux/evm.h b/include/linux/evm.h
index 01fc495a83e2..cf976d8dbd7a 100644
--- a/include/linux/evm.h
+++ b/include/linux/evm.h
@@ -23,7 +23,8 @@  extern enum integrity_status evm_verifyxattr(struct dentry *dentry,
 					     struct integrity_iint_cache *iint);
 extern int evm_inode_setattr(struct mnt_idmap *idmap,
 			     struct dentry *dentry, struct iattr *attr);
-extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid);
+extern void evm_inode_post_setattr(struct mnt_idmap *idmap,
+				   struct dentry *dentry, int ia_valid);
 extern int evm_inode_setxattr(struct mnt_idmap *idmap,
 			      struct dentry *dentry, const char *name,
 			      const void *value, size_t size);
@@ -97,7 +98,8 @@  static inline int evm_inode_setattr(struct mnt_idmap *idmap,
 	return 0;
 }
 
-static inline void evm_inode_post_setattr(struct dentry *dentry, int ia_valid)
+static inline void evm_inode_post_setattr(struct mnt_idmap *idmap,
+					  struct dentry *dentry, int ia_valid)
 {
 	return;
 }
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index ff9a939dad8e..d2f986a55d38 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -841,6 +841,7 @@  int evm_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 
 /**
  * evm_inode_post_setattr - update 'security.evm' after modifying metadata
+ * @idmap: idmap of the idmapped mount
  * @dentry: pointer to the affected dentry
  * @ia_valid: for the UID and GID status
  *
@@ -850,7 +851,8 @@  int evm_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
  * This function is called from notify_change(), which expects the caller
  * to lock the inode's i_mutex.
  */
-void evm_inode_post_setattr(struct dentry *dentry, int ia_valid)
+void evm_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
+			    int ia_valid)
 {
 	if (!evm_revalidate_status(NULL))
 		return;