/*
* evm.h
*
* Copyright (c) 2009 IBM Corporation
* Author: Mimi Zohar <[email protected]>
*/

#ifndef _LINUX_EVM_H
#define _LINUX_EVM_H

#include <linux/integrity.h>
#include <linux/xattr.h>

struct integrity_iint_cache;

#ifdef CONFIG_EVM
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 dentry *dentry, struct iattr *attr);
extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid);
extern int evm_inode_setxattr(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 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);
#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
#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 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 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 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;
}

#endif /* CONFIG_EVM */
#endif /* LINUX_EVM_H */