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54 lines
1.5 KiB
54 lines
1.5 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 two-stage locking using bGlobalLock and PP.
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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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int main(int argc, char** argv) {
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uint32_t zero = 0;
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uint32_t x;
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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(TlclRead(INDEX0, (uint8_t*) &x, sizeof(x)));
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TPM_CHECK(TlclWrite(INDEX0, (uint8_t*) &zero, sizeof(uint32_t)));
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TPM_CHECK(TlclRead(INDEX1, (uint8_t*) &x, sizeof(x)));
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TPM_CHECK(TlclWrite(INDEX1, (uint8_t*) &zero, sizeof(uint32_t)));
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TPM_CHECK(TlclSetGlobalLock());
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// Verifies that write to index0 fails.
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x = 1;
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TPM_EXPECT(TlclWrite(INDEX0, (uint8_t*) &x, sizeof(x)), TPM_E_AREA_LOCKED);
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TPM_CHECK(TlclRead(INDEX0, (uint8_t*) &x, sizeof(x)));
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VbAssert(x == 0);
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// Verifies that write to index1 is still possible.
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x = 2;
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TPM_CHECK(TlclWrite(INDEX1, (uint8_t*) &x, sizeof(x)));
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TPM_CHECK(TlclRead(INDEX1, (uint8_t*) &x, sizeof(x)));
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VbAssert(x == 2);
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// Turns off PP.
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TlclLockPhysicalPresence();
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// Verifies that write to index1 fails.
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x = 3;
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TPM_EXPECT(TlclWrite(INDEX1, (uint8_t*) &x, sizeof(x)), TPM_E_BAD_PRESENCE);
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TPM_CHECK(TlclRead(INDEX1, (uint8_t*) &x, sizeof(x)));
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VbAssert(x == 2);
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printf("TEST SUCCEEDED\n");
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exit(0);
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}
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