1 /* 2 * Copyright (C) 2005-2010 IBM Corporation 3 * 4 * Authors: 5 * Mimi Zohar <zohar@us.ibm.com> 6 * Kylene Hall <kjhall@us.ibm.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation, version 2 of the License. 11 * 12 * File: evm.h 13 * 14 */ 15 #include <linux/xattr.h> 16 #include <linux/security.h> 17 #include "../integrity.h" 18 19 extern int evm_initialized; 20 extern char *evm_hmac; 21 22 extern struct crypto_shash *hmac_tfm; 23 24 /* List of EVM protected security xattrs */ 25 extern char *evm_config_xattrnames[]; 26 27 extern int evm_init_key(void); 28 extern int evm_update_evmxattr(struct dentry *dentry, 29 const char *req_xattr_name, 30 const char *req_xattr_value, 31 size_t req_xattr_value_len); 32 extern int evm_calc_hmac(struct dentry *dentry, const char *req_xattr_name, 33 const char *req_xattr_value, 34 size_t req_xattr_value_len, char *digest); 35 extern int evm_init_hmac(struct inode *inode, const struct xattr *xattr, 36 char *hmac_val); 37 extern int evm_init_secfs(void); 38 extern void evm_cleanup_secfs(void); 39