// SPDX-License-Identifier: GPL-2.0
|
/* Copyright Intel Corp. 2018 */
|
#include <linux/init.h>
|
#include <linux/module.h>
|
#include <linux/moduleparam.h>
|
#include <linux/nd.h>
|
#include "pmem.h"
|
#include "pfn.h"
|
#include "nd.h"
|
#include "nd-core.h"
|
|
ssize_t security_show(struct device *dev,
|
struct device_attribute *attr, char *buf)
|
{
|
struct nvdimm *nvdimm = to_nvdimm(dev);
|
|
/*
|
* For the test version we need to poll the "hardware" in order
|
* to get the updated status for unlock testing.
|
*/
|
nvdimm->sec.flags = nvdimm_security_flags(nvdimm, NVDIMM_USER);
|
|
if (test_bit(NVDIMM_SECURITY_DISABLED, &nvdimm->sec.flags))
|
return sprintf(buf, "disabled\n");
|
if (test_bit(NVDIMM_SECURITY_UNLOCKED, &nvdimm->sec.flags))
|
return sprintf(buf, "unlocked\n");
|
if (test_bit(NVDIMM_SECURITY_LOCKED, &nvdimm->sec.flags))
|
return sprintf(buf, "locked\n");
|
return -ENOTTY;
|
}
|
