Release 4.18 security/integrity/evm/evm.h

/*
 * Copyright (C) 2005-2010 IBM Corporation
 *
 * Authors:
 * Mimi Zohar <zohar@us.ibm.com>
 * Kylene Hall <kjhall@us.ibm.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 2 of the License.
 *
 * File: evm.h
 *
 */

#ifndef __INTEGRITY_EVM_H

#define __INTEGRITY_EVM_H

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

#include "../integrity.h"


#define EVM_INIT_HMAC	0x0001

#define EVM_INIT_X509	0x0002

#define EVM_ALLOW_METADATA_WRITES	0x0004

#define EVM_SETUP_COMPLETE 0x80000000 
/* userland has signaled key load */


#define EVM_KEY_MASK (EVM_INIT_HMAC | EVM_INIT_X509)

#define EVM_INIT_MASK (EVM_INIT_HMAC | EVM_INIT_X509 | EVM_SETUP_COMPLETE | \
                       EVM_ALLOW_METADATA_WRITES)


struct xattr_list {
	
struct list_head list;
	
char *name;
};

extern int evm_initialized;


#define EVM_ATTR_FSUUID		0x0001

extern int evm_hmac_attrs;

extern struct crypto_shash *hmac_tfm;
extern struct crypto_shash *hash_tfm;

/* List of EVM protected security xattrs */
extern struct list_head evm_config_xattrnames;

int evm_init_key(void);
int evm_update_evmxattr(struct dentry *dentry,
			const char *req_xattr_name,
			const char *req_xattr_value,
			size_t req_xattr_value_len);
int evm_calc_hmac(struct dentry *dentry, const char *req_xattr_name,
		  const char *req_xattr_value,
		  size_t req_xattr_value_len, char *digest);
int evm_calc_hash(struct dentry *dentry, const char *req_xattr_name,
		  const char *req_xattr_value,
		  size_t req_xattr_value_len, char type, char *digest);
int evm_init_hmac(struct inode *inode, const struct xattr *xattr,
		  char *hmac_val);
int evm_init_secfs(void);

#endif
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Mimi Zohar
97
50.00%
2
18.18%
Dmitry Kasatkin
62
31.96%
5
45.45%
Matthew Garrett
35
18.04%
4
36.36%
Total
194
100.00%
11
100.00%
Directory: security/integrity/evm

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