mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
7f97c7ea9a
As we start refactoring the code to break dependencies (see doc/refactoring.txt), I want us to use full paths in the includes (eg, #include "base/data-struct/list.h"). This makes it more obvious when we're breaking abstraction boundaries, eg, including a file in metadata/ from base/
40 lines
1002 B
C
40 lines
1002 B
C
/*
|
|
* Copyright (C) 2010 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This file is part of LVM2.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU Lesser General Public License v.2.1.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "lib/misc/lib.h"
|
|
#include "lib/device/dev-type.h"
|
|
|
|
#define LUKS_SIGNATURE "LUKS\xba\xbe"
|
|
#define LUKS_SIGNATURE_SIZE 6
|
|
|
|
int dev_is_luks(struct device *dev, uint64_t *offset_found, int full)
|
|
{
|
|
char buf[LUKS_SIGNATURE_SIZE];
|
|
int ret = -1;
|
|
|
|
if (!scan_bcache)
|
|
return -EAGAIN;
|
|
|
|
if (offset_found)
|
|
*offset_found = 0;
|
|
|
|
if (!dev_read_bytes(dev, 0, LUKS_SIGNATURE_SIZE, buf))
|
|
goto_out;
|
|
|
|
ret = memcmp(buf, LUKS_SIGNATURE, LUKS_SIGNATURE_SIZE) ? 0 : 1;
|
|
|
|
out:
|
|
return ret;
|
|
}
|