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BUG=chromium-os:26317 BRANCH=none TEST=manual sudo emerge vboot_reference emerge-link vboot_reference chromeos-u-boot chromeos-installer emerge-daisy vboot_reference chromeos-u-boot chromeos-installer Signed-off-by: Randall Spangler <rspangler@chromium.org> Change-Id: I8c55ca40f3f0cacf08530ab63c886fe351bcee8e Reviewed-on: https://gerrit.chromium.org/gerrit/41152
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/* 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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