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authorJames Morris <jmorris@namei.org>2011-08-09 10:31:03 +1000
committerJames Morris <jmorris@namei.org>2011-08-09 10:31:03 +1000
commit5a2f3a02aea164f4f59c0c3497772090a411b462 (patch)
treed3ebe03d4f97575290087843960baa01de3acd0a /security/integrity/integrity.h
parent1d568ab068c021672d6cd7f50f92a3695a921ffb (diff)
parent817b54aa45db03437c6d09a7693fc6926eb8e822 (diff)
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Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next
Conflicts: fs/attr.c Resolve conflict manually. Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/integrity/integrity.h')
-rw-r--r--security/integrity/integrity.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
new file mode 100644
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+++ b/security/integrity/integrity.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009-2010 IBM Corporation
+ *
+ * Authors:
+ * Mimi Zohar <zohar@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.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/integrity.h>
+#include <crypto/sha.h>
+
+/* iint cache flags */
+#define IMA_MEASURED 0x01
+
+enum evm_ima_xattr_type {
+ IMA_XATTR_DIGEST = 0x01,
+ EVM_XATTR_HMAC,
+ EVM_IMA_XATTR_DIGSIG,
+};
+
+struct evm_ima_xattr_data {
+ u8 type;
+ u8 digest[SHA1_DIGEST_SIZE];
+} __attribute__((packed));
+
+/* integrity data associated with an inode */
+struct integrity_iint_cache {
+ struct rb_node rb_node; /* rooted in integrity_iint_tree */
+ struct inode *inode; /* back pointer to inode in question */
+ u64 version; /* track inode changes */
+ unsigned char flags;
+ u8 digest[SHA1_DIGEST_SIZE];
+ struct mutex mutex; /* protects: version, flags, digest */
+ enum integrity_status evm_status;
+};
+
+/* rbtree tree calls to lookup, insert, delete
+ * integrity data associated with an inode.
+ */
+struct integrity_iint_cache *integrity_iint_insert(struct inode *inode);
+struct integrity_iint_cache *integrity_iint_find(struct inode *inode);