[PATCH v6 06/25] evm: Align evm_inode_post_setattr() definition with LSM infrastructure

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From: Roberto Sassu <roberto.sassu@xxxxxxxxxx>

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 <roberto.sassu@xxxxxxxxxx>
Reviewed-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
Reviewed-by: Casey Schaufler <casey@xxxxxxxxxxxxxxxx>
Reviewed-by: Mimi Zohar <zohar@xxxxxxxxxxxxx>
---
 fs/attr.c                         | 2 +-
 include/linux/evm.h               | 6 ++++--
 security/integrity/evm/evm_main.c | 4 +++-
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/fs/attr.c b/fs/attr.c
index 9bddc0a6352c..498e673bdf06 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 894570fe39bc..d452d469c503 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -840,6 +840,7 @@ 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
  *
@@ -849,7 +850,8 @@ 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;
-- 
2.34.1




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