* cryptsetup volume key implementation
*
* Copyright (C) 2004-2006, Clemens Fruhwirth <clemens@endorphin.org>
- * Copyright (C) 2010 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2010-2012, Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <string.h>
#include "internal.h"
-int getRandom(char *buf, size_t len);
-
struct volume_key *crypt_alloc_volume_key(unsigned keylength, const char *key)
{
struct volume_key *vk = malloc(sizeof(*vk) + keylength);
vk->keylength = keylength;
if (key)
memcpy(&vk->key, key, keylength);
+ else
+ crypt_memzero(&vk->key, keylength);
return vk;
}
void crypt_free_volume_key(struct volume_key *vk)
{
if (vk) {
- memset(vk->key, 0, vk->keylength);
+ crypt_memzero(vk->key, vk->keylength);
vk->keylength = 0;
free(vk);
}
}
-struct volume_key *crypt_generate_volume_key(unsigned keylength)
+struct volume_key *crypt_generate_volume_key(struct crypt_device *cd, unsigned keylength)
{
int r;
struct volume_key *vk;
if (!vk)
return NULL;
- r = getRandom(vk->key, keylength);
+ r = crypt_random_get(cd, vk->key, keylength, CRYPT_RND_KEY);
if(r < 0) {
crypt_free_volume_key(vk);
return NULL;
}
return vk;
}
-