2 * Copyright (C) 2009-2010 IBM Corporation
5 * Mimi Zohar <zohar@us.ibm.com>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation, version 2 of the
14 #include <linux/types.h>
15 #include <linux/integrity.h>
16 #include <crypto/sha.h>
18 /* iint cache flags */
19 #define IMA_MEASURED 0x01
21 /* integrity data associated with an inode */
22 struct integrity_iint_cache {
23 struct rb_node rb_node; /* rooted in integrity_iint_tree */
24 struct inode *inode; /* back pointer to inode in question */
25 u64 version; /* track inode changes */
27 u8 digest[SHA1_DIGEST_SIZE];
28 struct mutex mutex; /* protects: version, flags, digest */
31 /* rbtree tree calls to lookup, insert, delete
32 * integrity data associated with an inode.
34 struct integrity_iint_cache *integrity_iint_insert(struct inode *inode);
35 struct integrity_iint_cache *integrity_iint_find(struct inode *inode);