linux-kernel - [PATCH v6 18/20] evm: replace hmac_status with evm

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Message-Id: <1307017423-15093-19-git-send-email-zohar@linux.vnet.ibm.com>
Date:	Thu,  2 Jun 2011 08:23:41 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	linux-security-module@...r.kernel.org
Cc:	Dmitry Kasatkin <dmitry.kasatkin@...ia.com>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	James Morris <jmorris@...ei.org>,
	David Safford <safford@...son.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg KH <greg@...ah.com>,
	Dmitry Kasatkin <dmitry.s.kasatkin@...il.com>,
	Mimi Zohar <zohar@...ibm.com>
Subject: [PATCH v6 18/20] evm: replace hmac_status with evm_status

From: Dmitry Kasatkin <dmitry.kasatkin@...ia.com>

We will use digital signatures in addtion to hmac.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@...ia.com>
Signed-off-by: Mimi Zohar <zohar@...ibm.com>
---
 security/integrity/evm/evm_main.c |   14 +++++++-------
 security/integrity/iint.c         |    2 +-
 security/integrity/integrity.h    |    2 +-
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 9abe75b..0dbb562 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -56,8 +56,8 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
 	struct evm_ima_xattr_data xattr_data;
 	int rc;
 
-	if (iint->hmac_status == INTEGRITY_PASS)
-		return iint->hmac_status;
+	if (iint->evm_status == INTEGRITY_PASS)
+		return iint->evm_status;
 
 	/* if status is not PASS, try to check again - against -ENOMEM */
 
@@ -71,18 +71,18 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
 			   sizeof xattr_data, GFP_NOFS);
 	if (rc < 0)
 		goto err_out;
-	iint->hmac_status = INTEGRITY_PASS;
-	return iint->hmac_status;
+	iint->evm_status = INTEGRITY_PASS;
+	return iint->evm_status;
 
 err_out:
 	switch (rc) {
 	case -ENODATA:		/* file not labelled */
-		iint->hmac_status = INTEGRITY_NOLABEL;
+		iint->evm_status = INTEGRITY_NOLABEL;
 		break;
 	default:
-		iint->hmac_status = INTEGRITY_FAIL;
+		iint->evm_status = INTEGRITY_FAIL;
 	}
-	return iint->hmac_status;
+	return iint->evm_status;
 }
 
 static int evm_protected_xattr(const char *req_xattr_name)
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index 991df20..0a23e07 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -157,7 +157,7 @@ static void init_once(void *foo)
 	iint->version = 0;
 	iint->flags = 0UL;
 	mutex_init(&iint->mutex);
-	iint->hmac_status = INTEGRITY_UNKNOWN;
+	iint->evm_status = INTEGRITY_UNKNOWN;
 }
 
 static int __init integrity_iintcache_init(void)
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index 7efbf56..880bbee 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -37,7 +37,7 @@ struct integrity_iint_cache {
 	unsigned char flags;
 	u8 digest[SHA1_DIGEST_SIZE];
 	struct mutex mutex;	/* protects: version, flags, digest */
-	enum integrity_status hmac_status;
+	enum integrity_status evm_status;
 };
 
 /* rbtree tree calls to lookup, insert, delete
-- 
1.7.3.4

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