[mirror_ubuntu-artful-kernel.git] / include / linux / evm.h

/*
 * 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 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

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 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 */
Commit	Line	Data
3e1be52d MZ	1	/*
	2	* evm.h
	3	*
	4	* Copyright (c) 2009 IBM Corporation
	5	* Author: Mimi Zohar <zohar@us.ibm.com>
	6	*/
	7
	8	#ifndef _LINUX_EVM_H
	9	#define _LINUX_EVM_H
	10
	11	#include <linux/integrity.h>
cb723180	12	#include <linux/xattr.h>
3e1be52d	13
2960e6cb DK	14	struct integrity_iint_cache;
2960e6cb DK	15
3e1be52d	16	#ifdef CONFIG_EVM
76266763	17	extern int evm_set_key(void *key, size_t keylen);
3e1be52d MZ	18	extern enum integrity_status evm_verifyxattr(struct dentry *dentry,
	19	const char *xattr_name,
	20	void *xattr_value,
2960e6cb DK	21	size_t xattr_value_len,
2960e6cb DK	22	struct integrity_iint_cache *iint);
817b54aa	23	extern int evm_inode_setattr(struct dentry dentry, struct iattr attr);
975d2943	24	extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid);
3e1be52d MZ	25	extern int evm_inode_setxattr(struct dentry dentry, const char name,
	26	const void *value, size_t size);
	27	extern void evm_inode_post_setxattr(struct dentry *dentry,
	28	const char *xattr_name,
	29	const void *xattr_value,
	30	size_t xattr_value_len);
	31	extern int evm_inode_removexattr(struct dentry dentry, const char xattr_name);
c7b87de2 MZ	32	extern void evm_inode_post_removexattr(struct dentry *dentry,
c7b87de2 MZ	33	const char *xattr_name);
cb723180 MZ	34	extern int evm_inode_init_security(struct inode *inode,
	35	const struct xattr *xattr_array,
	36	struct xattr *evm);
bf6d0f5d MZ	37	#ifdef CONFIG_FS_POSIX_ACL
	38	extern int posix_xattr_acl(const char *xattrname);
	39	#else
	40	static inline int posix_xattr_acl(const char *xattrname)
	41	{
	42	return 0;
	43	}
	44	#endif
3e1be52d	45	#else
76266763 DK	46
	47	static inline int evm_set_key(void *key, size_t keylen)
	48	{
	49	return -EOPNOTSUPP;
	50	}
	51
3e1be52d MZ	52	#ifdef CONFIG_INTEGRITY
	53	static inline enum integrity_status evm_verifyxattr(struct dentry *dentry,
	54	const char *xattr_name,
	55	void *xattr_value,
2960e6cb DK	56	size_t xattr_value_len,
2960e6cb DK	57	struct integrity_iint_cache *iint)
3e1be52d MZ	58	{
	59	return INTEGRITY_UNKNOWN;
	60	}
	61	#endif
	62
e1c9b23a	63	static inline int evm_inode_setattr(struct dentry dentry, struct iattr attr)
817b54aa MZ	64	{
	65	return 0;
	66	}
	67
975d2943 MZ	68	static inline void evm_inode_post_setattr(struct dentry *dentry, int ia_valid)
	69	{
	70	return;
	71	}
	72
3e1be52d MZ	73	static inline int evm_inode_setxattr(struct dentry dentry, const char name,
	74	const void *value, size_t size)
	75	{
	76	return 0;
	77	}
	78
	79	static inline void evm_inode_post_setxattr(struct dentry *dentry,
	80	const char *xattr_name,
	81	const void *xattr_value,
	82	size_t xattr_value_len)
	83	{
	84	return;
	85	}
	86
	87	static inline int evm_inode_removexattr(struct dentry *dentry,
	88	const char *xattr_name)
	89	{
	90	return 0;
	91	}
c7b87de2 MZ	92
	93	static inline void evm_inode_post_removexattr(struct dentry *dentry,
	94	const char *xattr_name)
	95	{
	96	return;
	97	}
	98
cb723180 MZ	99	static inline int evm_inode_init_security(struct inode *inode,
	100	const struct xattr *xattr_array,
	101	struct xattr *evm)
	102	{
5a4730ba	103	return 0;
cb723180 MZ	104	}
cb723180 MZ	105
e05a4f4f	106	#endif /* CONFIG_EVM */
3e1be52d	107	#endif /* LINUX_EVM_H */