137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* evm.h
|
|
*
|
|
* Copyright (c) 2009 IBM Corporation
|
|
* Author: Mimi Zohar <zohar@us.ibm.com>
|
|
*/
|
|
|
|
#ifndef _LINUX_EVM_H
|
|
#define _LINUX_EVM_H
|
|
|
|
#include <linux/integrity.h>
|
|
#include <linux/xattr.h>
|
|
|
|
struct integrity_iint_cache;
|
|
|
|
#ifdef CONFIG_EVM
|
|
extern int evm_set_key(void *key, size_t keylen);
|
|
extern enum integrity_status evm_verifyxattr(struct dentry *dentry,
|
|
const char *xattr_name,
|
|
void *xattr_value,
|
|
size_t xattr_value_len,
|
|
struct integrity_iint_cache *iint);
|
|
extern int evm_inode_setattr(struct user_namespace *mnt_userns,
|
|
struct dentry *dentry, struct iattr *attr);
|
|
extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid);
|
|
extern int evm_inode_setxattr(struct user_namespace *mnt_userns,
|
|
struct dentry *dentry, const char *name,
|
|
const void *value, size_t size);
|
|
extern void evm_inode_post_setxattr(struct dentry *dentry,
|
|
const char *xattr_name,
|
|
const void *xattr_value,
|
|
size_t xattr_value_len);
|
|
extern int evm_inode_removexattr(struct user_namespace *mnt_userns,
|
|
struct dentry *dentry, const char *xattr_name);
|
|
extern void evm_inode_post_removexattr(struct dentry *dentry,
|
|
const char *xattr_name);
|
|
extern int evm_inode_init_security(struct inode *inode,
|
|
const struct xattr *xattr_array,
|
|
struct xattr *evm);
|
|
extern bool evm_revalidate_status(const char *xattr_name);
|
|
extern int evm_protected_xattr_if_enabled(const char *req_xattr_name);
|
|
extern int evm_read_protected_xattrs(struct dentry *dentry, u8 *buffer,
|
|
int buffer_size, char type,
|
|
bool canonical_fmt);
|
|
#ifdef CONFIG_FS_POSIX_ACL
|
|
extern int posix_xattr_acl(const char *xattrname);
|
|
#else
|
|
static inline int posix_xattr_acl(const char *xattrname)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
#else
|
|
|
|
static inline int evm_set_key(void *key, size_t keylen)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
#ifdef CONFIG_INTEGRITY
|
|
static inline enum integrity_status evm_verifyxattr(struct dentry *dentry,
|
|
const char *xattr_name,
|
|
void *xattr_value,
|
|
size_t xattr_value_len,
|
|
struct integrity_iint_cache *iint)
|
|
{
|
|
return INTEGRITY_UNKNOWN;
|
|
}
|
|
#endif
|
|
|
|
static inline int evm_inode_setattr(struct user_namespace *mnt_userns,
|
|
struct dentry *dentry, struct iattr *attr)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void evm_inode_post_setattr(struct dentry *dentry, int ia_valid)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline int evm_inode_setxattr(struct user_namespace *mnt_userns,
|
|
struct dentry *dentry, const char *name,
|
|
const void *value, size_t size)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void evm_inode_post_setxattr(struct dentry *dentry,
|
|
const char *xattr_name,
|
|
const void *xattr_value,
|
|
size_t xattr_value_len)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline int evm_inode_removexattr(struct user_namespace *mnt_userns,
|
|
struct dentry *dentry,
|
|
const char *xattr_name)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void evm_inode_post_removexattr(struct dentry *dentry,
|
|
const char *xattr_name)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline int evm_inode_init_security(struct inode *inode,
|
|
const struct xattr *xattr_array,
|
|
struct xattr *evm)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline bool evm_revalidate_status(const char *xattr_name)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int evm_protected_xattr_if_enabled(const char *req_xattr_name)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int evm_read_protected_xattrs(struct dentry *dentry, u8 *buffer,
|
|
int buffer_size, char type,
|
|
bool canonical_fmt)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
#endif /* CONFIG_EVM */
|
|
#endif /* LINUX_EVM_H */
|