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 /* Timing test for various TPM operations. This is mostly a sanity 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 #include "utility.h" 20 21 /* Runs [op] and ensures it returns success and doesn't run longer than 22 * [time_limit] in milliseconds. 23 */ 24 #define TTPM_CHECK(op, time_limit) do { \ 25 struct timeval before, after; \ 26 int time; \ 27 uint32_t __result; \ 28 gettimeofday(&before, NULL); \ 29 __result = op; \ 30 if (__result != TPM_SUCCESS) { \ 31 printf(#op ": error 0x%x\n", __result); \ 32 errors++; \ 33 } \ 34 gettimeofday(&after, NULL); \ 35 time = (int) ((after.tv_sec - before.tv_sec) * 1000 + \ 36 (after.tv_usec - before.tv_usec) / 1000); \ 37 printf(#op ": %d ms\n", time); \ 38 if (time > time_limit) { \ 39 printf(#op " exceeded " #time_limit " ms\n"); \ 40 time_limit_exceeded = 1; \ 41 } \ 42 } while (0) 43 44 int main(int argc, char** argv) { 45 uint32_t x; 46 uint8_t in[20], out[20]; 47 int time_limit_exceeded = 0; 48 int errors = 0; 49 50 TlclLibInit(); 51 TTPM_CHECK(0, 50); 52 TTPM_CHECK(TlclStartupIfNeeded(), 50); 53 TTPM_CHECK(TlclContinueSelfTest(), 100); 54 TTPM_CHECK(TlclSelfTestFull(), 1000); 55 TTPM_CHECK(TlclAssertPhysicalPresence(), 100); 56 TTPM_CHECK(TlclWrite(INDEX0, (uint8_t*) &x, sizeof(x)), 100); 57 TTPM_CHECK(TlclRead(INDEX0, (uint8_t*) &x, sizeof(x)), 100); 58 TTPM_CHECK(TlclExtend(0, in, out), 200); 59 TTPM_CHECK(TlclSetGlobalLock(), 50); 60 TTPM_CHECK(TlclLockPhysicalPresence(), 100); 61 if (time_limit_exceeded || errors > 0) { 62 printf("TEST FAILED\n"); 63 exit(1); 64 } else { 65 printf("TEST SUCCEEDED\n"); 66 return 0; 67 } 68 } 69
