int main(int argc, char** argv)
{
int rc = 0;
int start;
int update;
int complete;
int verbose;
unsigned char buffer1[] = "1234567890123456789012345678901234567890123456789012345678901234";
unsigned char buffer2[] = "12345678901234567890123456789012";
unsigned char expect[] = {0xbf, 0x63, 0xee, 0xe7, 0x1c, 0x21, 0x1f, 0x83,
0xc9, 0x63, 0xf1, 0x41, 0xd2, 0xff, 0xd4, 0x0a,
0x01, 0x9f, 0xb0, 0x90};
TPM_DIGEST actual;
int not_equal;
uint32_t maxNumBytes = 0; /* return from TPM_SHA1Start */
/* get caller's command line arguments */
if (rc == 0) {
rc = getArgs(&start,
&update,
&complete,
&verbose,
argc, argv);
}
if ((rc == 0) && start) {
rc = TPM_SHA1Start(&maxNumBytes); /* ignore, buffer is small */
if (rc != 0) {
printf("sha1parts: Error in TPM_SHA1Start\n");
}
}
if ((rc == 0) && update) {
rc = TPM_SHA1Update(buffer1, 64);
if (rc != 0) {
printf("sha1parts: Error in TPM_SHA1Update\n");
}
}
if ((rc == 0) && complete) {
rc = TPM_SHA1Complete(buffer2, 32, actual);
if (rc != 0) {
printf("sha1parts: Error in TPM_SHA1Complete\n");
}
}
if ((rc == 0) && complete) {
not_equal = memcmp(expect, actual, TPM_DIGEST_SIZE);
if (not_equal) {
printf("sha1parts: Error in digest\n");
rc = -1;
}
}
if (rc != 0) {
printf("sha1parts: Error\n");
}
return rc;
}
int main(int argc, char * argv[]) {
char * data = NULL;
char * filename = NULL;
int i = 1;
int offset = 0;
uint32_t len;
uint32_t ret = 0;
unsigned char hashbuffer[TPM_HASH_SIZE];
unsigned char pcrValue[TPM_HASH_SIZE];
int index = -1;
TPM_BOOL verbose = FALSE;
uint32_t maxNumBytes = 0; /* return from TPM_SHA1Start */
TPM_setlog(0);
while (i < argc) {
if (!strcmp("-ic",argv[i])) {
i++;
if (i < argc) {
data = argv[i];
} else {
printf("Missing mandatory parameter for -ic.\n");
usage();
}
} else
if (!strcmp("-if",argv[i])) {
i++;
if (i < argc) {
filename = argv[i];
} else {
printf("Missing mandatory parameter for -if.\n");
usage();
}
} else
if (!strcmp("-ix",argv[i])) {
i++;
if (i < argc) {
index = atoi(argv[i]);
} else {
printf("Missing mandatory parameter for -ix.\n");
usage();
}
} else
if (!strcmp("-v",argv[i])) {
TPM_setlog(1);
verbose = TRUE;
} else
if (!strcmp("-h",argv[i])) {
usage();
} else {
printf("\n%s is not a valid option\n", argv[i]);
usage();
}
i++;
}
if (NULL == data && filename == NULL) {
printf("Input parameters wrong or missing!\n");
usage();
}
/* Common processing, for data or file */
ret = TPM_SHA1Start(&maxNumBytes);
if (0 != ret) {
printf("Error from TPM_SHA1Start(): %d (0x%x)\n",
ret,
ret);
exit(-1);
}
if (maxNumBytes < 64) {
printf("The size parameter returned from SHA1Start() is bad.\n");
exit(-1);
}
/* If the connection is to a hardware device, the driver limits the buffer size to
2048, even if the TPM can support a larger size.
The -20 is presumably for the TPM command packet tag, paramSize, ordinal,
numBytes, although this only adds up to 14 bytes.
*/
#if defined TPM_USE_CHARDEV || defined XCRYPTO_USE_CCA
maxNumBytes = MIN(maxNumBytes, (2 * 1024) - 20);
maxNumBytes &= ~63;
#else
/* Even if the connection is to a socket, it may be then through a proxy to a
hardware device. Setting this env variable flag again limits the buffer to
2048. */
if (getenv("TPM_HW_DRIVER") != NULL) {
maxNumBytes = MIN(maxNumBytes, (2 * 1024) - 20);
maxNumBytes &= ~63;
}
#endif
if (NULL != data) {
len = strlen(data);
printf("SHA1 hash for '%s': ",data);
offset = 0;
while (len > 64) {
unsigned int chunksize;
chunksize = MIN(maxNumBytes, len & ~63);
if (verbose)
printf("Chunksize to hash: %d\n",chunksize);
ret = TPM_SHA1Update(&data[offset], chunksize);
if (ret != 0) {
printf("Error %s from SHA1Update.\n",
TPM_GetErrMsg(ret));
exit(ret);
}
offset += chunksize;
len -= chunksize;
}
if (index >= 0) {
ret = TPM_SHA1CompleteExtend(&data[offset],len,
index,
hashbuffer,
pcrValue);
} else {
ret = TPM_SHA1Complete(&data[offset],len,hashbuffer);
}
if (0 == ret) {
printf("Hash: ");
i = 0;
while (i < (int)sizeof(hashbuffer)) {
printf("%02x",hashbuffer[i]);
i++;
}
printf("\n");
if (index >= 0) {
printf("New value of PCR: ");
i = 0;
while (i < (int)sizeof(pcrValue)) {
printf("%02x",pcrValue[i]);
i++;
}
printf("\n");
}
} else {
printf("Error '%s' from SHA1Complete/SHA1CompleteExtend.\n",
TPM_GetErrMsg(ret));
}
}
if (NULL != filename) {
FILE * f = fopen(filename,"rb");
if (NULL != f) {
int n = 0;
uint32_t chunksize;
char *buf;
uint32_t total = 0;
printf("SHA1 hash for file '%s': \n",filename);
buf = malloc(maxNumBytes);
if (!buf) {
printf("Could not allocated buffer.\n");
exit(-1);
}
while ((n = fread(buf,1,maxNumBytes,f)) >= 64) {
chunksize = MIN(maxNumBytes,
(uint32_t)(n & ~63));
if (verbose)
printf("Chunksize to hash: %d\n",
chunksize);
ret = TPM_SHA1Update(buf,chunksize);
if (ret != 0) {
printf("Error %s from SHA1Update.\n",
TPM_GetErrMsg(ret));
exit(-1);
}
total += chunksize;
if ((chunksize - n)) {
offset = chunksize;
n &= 63;
break;
}
}
total += n;
if (index >= 0) {
ret = TPM_SHA1CompleteExtend(&buf[offset],n,
index,
hashbuffer,
pcrValue);
} else {
ret = TPM_SHA1Complete(&buf[offset],n,hashbuffer);
}
fclose(f);
free(buf);
if (0 == ret) {
printf("Hash: ");
i = 0;
while (i < (int)sizeof(hashbuffer)) {
printf("%02x",hashbuffer[i]);
i++;
}
printf("\n");
if (index >= 0) {
printf("New value of PCR: ");
i = 0;
while (i < (int)sizeof(pcrValue)) {
printf("%02x",pcrValue[i]);
i++;
}
printf("\n");
}
} else {
printf("Error '%s' from SHA1Complete/SHA1CompleteExtend.\n",
TPM_GetErrMsg(ret));
}
} else {
printf("Could not find file '%s'.\n",filename);
}
}
return 0;
}