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/********************************************************************************/
/* */
/* Time a TPM Command */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* $Id: pcrextend.c 851 2016-12-02 19:46:05Z kgoldman $ */
/* */
/* (c) Copyright IBM Corporation 2017. */
/* */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or without */
/* modification, are permitted provided that the following conditions are */
/* met: */
/* */
/* Redistributions of source code must retain the above copyright notice, */
/* this list of conditions and the following disclaimer. */
/* */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in the */
/* documentation and/or other materials provided with the distribution. */
/* */
/* Neither the names of the IBM Corporation nor the names of its */
/* contributors may be used to endorse or promote products derived from */
/* this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */
/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
/* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY */
/* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */
/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/********************************************************************************/
/*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <time.h>
#include <unistd.h>
#include <openssl/rand.h>
#include <tss2/tss.h>
#include <tss2/tsstransmit.h>
#include <tss2/tssfile.h>
#include <tss2/tssresponsecode.h>
static void printUsage(void);
int verbose = FALSE;
int main(int argc, char *argv[])
{
TPM_RC rc = 0;
int i; /* argc iterator */
TSS_CONTEXT *tssContext = NULL;
const char *commandFilename = NULL;
unsigned char *commandBufferString = NULL;
unsigned char *commandBuffer = NULL;
size_t commandStringLength;
size_t commandLength;
unsigned int loops = 1;
unsigned int count;
uint8_t responseBuffer[MAX_RESPONSE_SIZE];;
uint32_t responseLength;
time_t startTime;
time_t endTime;
setvbuf(stdout, 0, _IONBF, 0); /* output may be going through pipe to log file */
TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "1");
/* command line argument defaults */
for (i=1 ; (i<argc) && (rc == 0) ; i++) {
if (strcmp(argv[i],"-if") == 0) {
i++;
if (i < argc) {
commandFilename = argv[i];
}
else {
printf("-if option needs a value\n");
printUsage();
}
}
else if (strcmp(argv[i],"-l") == 0) {
i++;
if (i < argc) {
loops = atoi(argv[i]);
}
else {
printf("-l option needs a value\n");
printUsage();
}
}
else if (strcmp(argv[i],"-h") == 0) {
printUsage();
}
else if (strcmp(argv[i],"-v") == 0) {
verbose = TRUE;
TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "2");
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
if (commandFilename == NULL) {
printf("Missing parameter -if\n");
printUsage();
}
if (rc == 0) {
rc = TSS_File_ReadBinaryFile(&commandBufferString, &commandStringLength, commandFilename);
}
if (rc == 0) {
if (commandBufferString[commandStringLength-1] != ' ') {
printf("packet string does not end in a space\n");
}
else {
/* nul terminate the string */
commandBufferString[commandStringLength-1] = '\0';
}
}
if (rc == 0) {
rc = TSS_Array_Scan(&commandBuffer, /* freed @1 */
&commandLength, (char *)commandBufferString);
}
/* Start a TSS context */
if (rc == 0) {
rc = TSS_Create(&tssContext);
}
double timeDiff = 0;
for (count = 0 ; (rc == 0) && (count < loops) ; count++) {
uint32_t usec;
RAND_bytes((unsigned char *)&usec, sizeof(uint32_t));
usec %= 1000000;
usleep(usec);
startTime = time(NULL);
rc = TSS_Transmit(tssContext,
responseBuffer, &responseLength,
commandBuffer, commandLength,
NULL);
endTime = time(NULL);
printf("End Pass %u\n", count +1);
timeDiff += difftime(endTime, startTime);
}
if (rc == 0) {
}
{
TPM_RC rc1 = TSS_Delete(tssContext);
if (rc == 0) {
rc = rc1;
}
}
if (rc == 0) {
printf("Loops %u time %f time per pass %f\n", loops, timeDiff, timeDiff/loops);
}
if (rc == 0) {
if (verbose) printf("timepacket: success\n");
}
else {
const char *msg;
const char *submsg;
const char *num;
printf("timepacket: failed, rc %08x\n", rc);
TSS_ResponseCode_toString(&msg, &submsg, &num, rc);
printf("%s%s%s\n", msg, submsg, num);
rc = EXIT_FAILURE;
}
free(commandBufferString);
free(commandBuffer); /* @1 */
return rc;
}
static void printUsage(void)
{
printf("\n");
printf("timepacket\n");
printf("\n");
printf("Times the supplied packet\n");
printf("\n");
printf("\t-if packet in hexascii (requires one space at end of packet)\n");
printf("\t[-l number of loops to time (default 1)]\n");
exit(1);
}
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