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56 lines
1.3 KiB
56 lines
1.3 KiB
/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
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* Use of this source code is governed by a BSD-style license that can be |
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* found in the LICENSE file. |
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*/ |
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/* Test of recovery when we hit the NVRAM write limit for an unowned TPM. |
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*/ |
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#include <stdio.h> |
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#include <stdint.h> |
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#include <stdlib.h> |
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#include "host_common.h" |
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#include "tlcl.h" |
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#include "tlcl_tests.h" |
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#define TPM_MAX_NV_WRITES_NOOWNER 64 |
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int main(int argc, char** argv) { |
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int i; |
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uint32_t result; |
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TlclLibInit(); |
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TPM_CHECK(TlclStartupIfNeeded()); |
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TPM_CHECK(TlclSelfTestFull()); |
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TPM_CHECK(TlclAssertPhysicalPresence()); |
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TPM_CHECK(TlclForceClear()); |
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TPM_CHECK(TlclSetEnable()); |
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TPM_CHECK(TlclSetDeactivated(0)); |
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for (i = 0; i < TPM_MAX_NV_WRITES_NOOWNER + 2; i++) { |
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printf("writing %d\n", i); |
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if ((result = TlclWrite(INDEX0, (uint8_t*)&i, sizeof(i))) != TPM_SUCCESS) { |
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switch (result) { |
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case TPM_E_MAXNVWRITES: |
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VbAssert(i >= TPM_MAX_NV_WRITES_NOOWNER); |
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break; |
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default: |
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VbExError("unexpected error code %d (0x%x)\n", result, result); |
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} |
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} |
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} |
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/* Reset write count */ |
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TPM_CHECK(TlclForceClear()); |
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TPM_CHECK(TlclSetEnable()); |
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TPM_CHECK(TlclSetDeactivated(0)); |
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/* Try writing again. */ |
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TPM_CHECK(TlclWrite(INDEX0, (uint8_t*)&i, sizeof(i))); |
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printf("TEST SUCCEEDED\n"); |
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exit(0); |
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}
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