1 /* Copyright 2010 The ChromiumOS Authors
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 /* Timing test for various TPM operations. This is mostly a validity check to
7 * make sure the part doesn't have ridicolously bad timing on simple
8 * operations.
9 */
10
11 #include <stdio.h>
12 #include <stdint.h>
13 #include <stdlib.h>
14 #include <sys/time.h>
15 #include <time.h>
16
17 #include "tlcl.h"
18 #include "tlcl_tests.h"
19
20 /* Runs [op] and ensures it returns success and doesn't run longer than
21 * [time_limit] in milliseconds.
22 */
23 #define TTPM_CHECK(op, time_limit) do { \
24 struct timeval before, after; \
25 int time; \
26 uint32_t __result; \
27 gettimeofday(&before, NULL); \
28 __result = op; \
29 if (__result != TPM_SUCCESS) { \
30 printf(#op ": error %#x\n", __result); \
31 errors++; \
32 } \
33 gettimeofday(&after, NULL); \
34 time = (int) ((after.tv_sec - before.tv_sec) * 1000 + \
35 (after.tv_usec - before.tv_usec) / 1000); \
36 printf(#op ": %d ms\n", time); \
37 if (time > time_limit) { \
38 printf(#op " exceeded " #time_limit " ms\n"); \
39 time_limit_exceeded = 1; \
40 } \
41 } while (0)
42
main(int argc,char ** argv)43 int main(int argc, char** argv) {
44 uint32_t x;
45 uint8_t in[20], out[20];
46 int time_limit_exceeded = 0;
47 int errors = 0;
48
49 TlclLibInit();
50 TTPM_CHECK(0, 50);
51 TTPM_CHECK(TlclStartupIfNeeded(), 50);
52 TTPM_CHECK(TlclContinueSelfTest(), 100);
53 TTPM_CHECK(TlclSelfTestFull(), 1000);
54 TTPM_CHECK(TlclAssertPhysicalPresence(), 100);
55 TTPM_CHECK(TlclWrite(INDEX0, (uint8_t*) &x, sizeof(x)), 100);
56 TTPM_CHECK(TlclRead(INDEX0, (uint8_t*) &x, sizeof(x)), 100);
57 TTPM_CHECK(TlclExtend(0, in, out), 200);
58 TTPM_CHECK(TlclSetGlobalLock(), 50);
59 TTPM_CHECK(TlclLockPhysicalPresence(), 100);
60 if (time_limit_exceeded || errors > 0) {
61 printf("TEST FAILED\n");
62 exit(1);
63 } else {
64 printf("TEST SUCCEEDED\n");
65 return 0;
66 }
67 }
68