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