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30 lines
874 B
30 lines
874 B
// 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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