libvirt/src/util/virtpm.c
Michal Privoznik 7c9a2d88cd virutil: Move string related functions to virstring.c
The source code base needs to be adapted as well. Some files
include virutil.h just for the string related functions (here,
the include is substituted to match the new file), some include
virutil.h without any need (here, the include is removed), and
some require both.
2013-05-02 16:56:55 +02:00

66 lines
1.7 KiB
C

/*
* virtpm.c: TPM support
*
* Copyright (C) 2013 IBM Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Stefan Berger <stefanb@linux.vnet.ibm.com>
*/
#include <config.h>
#include <sys/stat.h>
#include "virstring.h"
#include "virerror.h"
#include "virtpm.h"
#define VIR_FROM_THIS VIR_FROM_NONE
/**
* virTPMCreateCancelPath:
* @devpath: Path to the TPM device
*
* Create the cancel path given the path to the TPM device
*/
char *
virTPMCreateCancelPath(const char *devpath)
{
char *path = NULL;
const char *dev;
if (devpath) {
dev = strrchr(devpath, '/');
if (dev) {
dev++;
if (virAsprintf(&path, "/sys/class/misc/%s/device/cancel",
dev) < 0) {
virReportOOMError();
goto cleanup;
}
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("TPM device path %s is invalid"), devpath);
}
} else {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Missing TPM device path"));
}
cleanup:
return path;
}