static uint32_t swapOutKey(uint32_t handle)
{
unsigned char labelhash[20];
char *filename = createKeyFilename(handle);
STACK_TPM_BUFFER(context);
uint32_t ret = 0;
if (NULL == filename) {
ret = ERR_MEM_ERR;
}
#if 0
printf("Swapping OUT key with handle %08x\n",handle);
#endif
TSS_sha1("KEY",3,labelhash);
if (ret == 0) {
ret = TPM_SaveContext(handle,
TPM_RT_KEY,
(char *)labelhash,
&context);
}
if (ret == 0) {
FILE * f = fopen(filename, "w+");
if (f) {
fwrite(context.buffer, context.used, 1, f);
fclose(f);
} else {
ret = ERR_BAD_FILE;
}
}
if (ret == 0) {
ret = TPM_EvictKey(handle);
#if 0
printf("Evicted key with handle 0x%08x\n",handle);
} else {
printf("DID NOT Evicted key with handle 0x%08x\n",handle);
#endif
}
#if 0
if (ret == 0) {
printf("Swapped out key with handle %08x.\n",handle);
} else {
printf("Could NOT swap out key with handle %08x.\n",handle);
}
#endif
return ret;
}
int main(int argc, char *argv[])
{
unsigned char labelhash[20];
int ret;
char * filename = NULL;
char * label = NULL;
uint32_t handle = 0xffffffff;
uint32_t restype = 0;
STACK_TPM_BUFFER(context);
int i = 1;
TPM_setlog(0);
while (i < argc) {
if (!strcmp("-rt",argv[i])) {
i++;
if (i < argc) {
sscanf(argv[i],"%x",&restype);
} else {
printf("Missing parameter for -rt.\n");
usage();
}
} else
if (!strcmp("-of",argv[i])) {
i++;
if (i < argc) {
filename = argv[i];
} else {
printf("Missing parameter for -of.\n");
usage();
}
} else
if (!strcmp("-la",argv[i])) {
i++;
if (i < argc) {
label = argv[i];
} else {
printf("Missing parameter for -la.\n");
usage();
}
} else
if (!strcmp("-ha",argv[i])) {
i++;
if (i < argc) {
sscanf(argv[i],"%x",&handle);
} else {
printf("Missing parameter for -ha.\n");
usage();
}
} else
if (!strcmp("-v",argv[i])) {
TPM_setlog(1);
} else
if (!strcmp("-h",argv[i])) {
usage();
} else {
printf("\n%s is not a valid option\n", argv[i]);
usage();
}
i++;
}
if (NULL == filename || 0xffffffff == handle || NULL == label) {
printf("Missing argument.\n");
usage();
}
if (NULL != label) {
TSS_sha1(label,strlen(label),labelhash);
}
ret = TPM_SaveContext(handle, restype, (char *)labelhash, &context);
if (0 != ret) {
printf("SaveContext returned error '%s' (%d).\n",
TPM_GetErrMsg(ret),
ret);
} else {
FILE * f = fopen(filename, "wb");
if (NULL != f) {
fwrite(context.buffer,context.used,1,f);
fclose(f);
}
}
exit(ret);
}