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Side by Side Diff: tests/tpm_lite/globallock.c

Issue 2919010: Add tpm lite to vboot reference (Closed) Base URL: ssh://gitrw.chromium.org/vboot_reference.git
Patch Set: Created 10 years, 5 months ago
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1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file.
4 */
5
6 /* Test of two-stage locking using bGlobalLock and PP.
7 */
8
9 #include <stdio.h>
10 #include <stdint.h>
11 #include <stdlib.h>
12 #include <tss/tcs.h>
13
14 #include "tlcl.h"
15 #include "utility.h"
16
17 #define INDEX0 0xcafe
18 #define INDEX1 0xcaff
19
20 int main(int argc, char** argv) {
21 uint32_t zero = 0;
22 uint32_t perm;
23 uint32_t result;
24 uint32_t x;
25
26 TlclLibInit();
27
28 TlclStartup();
29 TlclSelftestfull();
30
31 TlclAssertPhysicalPresence();
32
33 result = TlclRead(INDEX0, (uint8_t*) &x, sizeof(x));
34 if (result == TPM_E_BADINDEX) {
35 perm = TPM_NV_PER_PPWRITE | TPM_NV_PER_GLOBALLOCK;
36 TlclDefineSpace(INDEX0, perm, sizeof(uint32_t));
37 }
38 result = TlclWrite(INDEX0, (uint8_t*) &zero, sizeof(uint32_t));
39 assert(result == TPM_SUCCESS);
40
41 result = TlclRead(INDEX1, (uint8_t*) &x, sizeof(x));
42 if (result == TPM_E_BADINDEX) {
43 perm = TPM_NV_PER_PPWRITE;
44 TlclDefineSpace(INDEX1, perm, sizeof(uint32_t));
45 }
46 result = TlclWrite(INDEX1, (uint8_t*) &zero, sizeof(uint32_t));
47 assert(result == TPM_SUCCESS);
48
49 // Sets the global lock.
50 TlclSetGlobalLock();
51
52 // Verifies that write to index0 fails.
53 x = 1;
54 result = TlclWrite(INDEX0, (uint8_t*) &x, sizeof(x));
55 if (result != TPM_E_AREA_LOCKED) {
56 error("INDEX0 is not locked\n");
57 exit(1);
58 }
59
60 // Verifies that write to index1 is still possible.
61 x = 2;
62 result = TlclWrite(INDEX1, (uint8_t*) &x, sizeof(x));
63 if (result != TPM_SUCCESS) {
64 error("failure to write at INDEX1\n");
65 exit(2);
66 }
67
68 // Turns off PP.
69 TlclLockPhysicalPresence();
70
71 // Verifies that write to index1 fails.
72 x = 3;
73 result = TlclWrite(INDEX1, (uint8_t*) &x, sizeof(x));
74 if (result != TPM_E_BAD_PRESENCE) {
75 error("INDEX1 is not locked\n");
76 exit(3);
77 }
78
79 printf("Test completed successfully\n");
80 exit(0);
81 }
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