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/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Test of protection from space redefinition when an owner is NOT present.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include "host_common.h"
#include "tlcl.h"
#include "tlcl_tests.h"
int main(int argc, char** argv) {
uint32_t perm;
uint32_t x;
TlclLibInit();
TPM_CHECK(TlclStartupIfNeeded());
TPM_CHECK(TlclSelfTestFull());
TPM_CHECK(TlclAssertPhysicalPresence());
VbAssert(!TlclIsOwned());
/* Ensures spaces exist. */
TPM_CHECK(TlclRead(INDEX0, (uint8_t*) &x, sizeof(x)));
TPM_CHECK(TlclRead(INDEX1, (uint8_t*) &x, sizeof(x)));
/* Redefines spaces a couple of times. */
perm = TPM_NV_PER_PPWRITE | TPM_NV_PER_GLOBALLOCK;
TPM_CHECK(TlclDefineSpace(INDEX0, perm, 2 * sizeof(uint32_t)));
TPM_CHECK(TlclDefineSpace(INDEX0, perm, sizeof(uint32_t)));
perm = TPM_NV_PER_PPWRITE;
TPM_CHECK(TlclDefineSpace(INDEX1, perm, 2 * sizeof(uint32_t)));
TPM_CHECK(TlclDefineSpace(INDEX1, perm, sizeof(uint32_t)));
// Sets the global lock.
TlclSetGlobalLock();
// Verifies that index0 cannot be redefined.
TPM_EXPECT(TlclDefineSpace(INDEX0, perm, sizeof(uint32_t)),
TPM_E_AREA_LOCKED);
// Checks that index1 can.
TPM_CHECK(TlclDefineSpace(INDEX1, perm, 2 * sizeof(uint32_t)));
TPM_CHECK(TlclDefineSpace(INDEX1, perm, sizeof(uint32_t)));
// Turns off PP.
TlclLockPhysicalPresence();
// Verifies that neither index0 nor index1 can be redefined.
TPM_EXPECT(TlclDefineSpace(INDEX0, perm, sizeof(uint32_t)),
TPM_E_BAD_PRESENCE);
TPM_EXPECT(TlclDefineSpace(INDEX1, perm, sizeof(uint32_t)),
TPM_E_BAD_PRESENCE);
printf("TEST SUCCEEDED\n");
exit(0);
}
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