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evm: Align evm_inode_post_setattr() definition with LSM infrastructure

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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@huawei.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Roberto Sassu 2024-02-15 11:30:54 +01:00 committed by Paul Moore
parent fec5f85e46
commit 784111d009
3 changed files with 8 additions and 4 deletions
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2
fs/attr.c
View file

@ -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;

6
include/linux/evm.h
View file

@ -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);
@ -98,7 +99,8 @@ 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;
}

4
security/integrity/evm/evm_main.c
View file

@ -870,6 +870,7 @@ 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
*
@ -879,7 +880,8 @@ 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;