/********************************************************************************/
/* */
/* Unseal */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* */
/* (c) Copyright IBM Corporation 2015 - 2019. */
/* */
/* 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 <ibmtss/tss.h>
#include <ibmtss/tssutils.h>
#include <ibmtss/tssresponsecode.h>
static void printUsage(void);
extern int tssUtilsVerbose;
int main(int argc, char *argv[])
{
TPM_RC rc = 0;
int i; /* argc iterator */
TSS_CONTEXT *tssContext = NULL;
Unseal_In in;
Unseal_Out out;
TPMI_DH_OBJECT itemHandle = 0;
const char *outDataFilename = NULL;
const char *password = NULL;
TPMI_SH_AUTH_SESSION sessionHandle0 = TPM_RS_PW;
unsigned int sessionAttributes0 = 0;
TPMI_SH_AUTH_SESSION sessionHandle1 = TPM_RH_NULL;
unsigned int sessionAttributes1 = 0;
TPMI_SH_AUTH_SESSION sessionHandle2 = TPM_RH_NULL;
unsigned int sessionAttributes2 = 0;
setvbuf(stdout, 0, _IONBF, 0); /* output may be going through pipe to log file */
TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "1");
tssUtilsVerbose = FALSE;
for (i=1 ; (i<argc) && (rc == 0) ; i++) {
if (strcmp(argv[i],"-ha") == 0) {
i++;
if (i < argc) {
sscanf(argv[i],"%x", &itemHandle);
}
else {
printf("Missing parameter for -ha\n");
printUsage();
}
}
else if (strcmp(argv[i],"-pwd") == 0) {
i++;
if (i < argc) {
password = argv[i];
}
else {
printf("-pwd option needs a value\n");
printUsage();
}
}
else if (strcmp(argv[i],"-of") == 0) {
i++;
if (i < argc) {
outDataFilename = argv[i];
}
else {
printf("-of option needs a value\n");
printUsage();
}
}
else if (strcmp(argv[i],"-se0") == 0) {
i++;
if (i < argc) {
sscanf(argv[i],"%x", &sessionHandle0);
}
else {
printf("Missing parameter for -se0\n");
printUsage();
}
i++;
if (i < argc) {
sscanf(argv[i],"%x", &sessionAttributes0);
if (sessionAttributes0 > 0xff) {
printf("Out of range session attributes for -se0\n");
printUsage();
}
}
else {
printf("Missing parameter for -se0\n");
printUsage();
}
}
else if (strcmp(argv[i],"-se1") == 0) {
i++;
if (i < argc) {
sscanf(argv[i],"%x", &sessionHandle1);
}
else {
printf("Missing parameter for -se1\n");
printUsage();
}
i++;
if (i < argc) {
sscanf(argv[i],"%x", &sessionAttributes1);
if (sessionAttributes1 > 0xff) {
printf("Out of range session attributes for -se1\n");
printUsage();
}
}
else {
printf("Missing parameter for -se1\n");
printUsage();
}
}
else if (strcmp(argv[i],"-se2") == 0) {
i++;
if (i < argc) {
sscanf(argv[i],"%x", &sessionHandle2);
}
else {
printf("Missing parameter for -se2\n");
printUsage();
}
i++;
if (i < argc) {
sscanf(argv[i],"%x", &sessionAttributes2);
if (sessionAttributes2 > 0xff) {
printf("Out of range session attributes for -se2\n");
printUsage();
}
}
else {
printf("Missing parameter for -se2\n");
printUsage();
}
}
else if (strcmp(argv[i],"-h") == 0) {
printUsage();
}
else if (strcmp(argv[i],"-v") == 0) {
tssUtilsVerbose = TRUE;
TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "2");
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
if (itemHandle == 0) {
printf("Missing handle parameter -ha\n");
printUsage();
}
if (rc == 0) {
in.itemHandle = itemHandle;
}
/* Start a TSS context */
if (rc == 0) {
rc = TSS_Create(&tssContext);
}
/* call TSS to execute the command */
if (rc == 0) {
rc = TSS_Execute(tssContext,
(RESPONSE_PARAMETERS *)&out,
(COMMAND_PARAMETERS *)&in,
NULL,
TPM_CC_Unseal,
sessionHandle0, password, sessionAttributes0,
sessionHandle1, NULL, sessionAttributes1,
sessionHandle2, NULL, sessionAttributes2,
TPM_RH_NULL, NULL, 0);
}
{
TPM_RC rc1 = TSS_Delete(tssContext);
if (rc == 0) {
rc = rc1;
}
}
if ((rc == 0) && (outDataFilename != NULL)) {
rc = TSS_File_WriteBinaryFile(out.outData.t.buffer,
out.outData.t.size,
outDataFilename);
}
if (rc == 0) {
if (tssUtilsVerbose) TSS_PrintAll("outData",
out.outData.t.buffer,
out.outData.t.size);
if (tssUtilsVerbose) printf("unseal: success\n");
}
else {
const char *msg;
const char *submsg;
const char *num;
printf("unseal: failed, rc %08x\n", rc);
TSS_ResponseCode_toString(&msg, &submsg, &num, rc);
printf("%s%s%s\n", msg, submsg, num);
rc = EXIT_FAILURE;
}
return rc;
}
static void printUsage(void)
{
printf("\n");
printf("unseal\n");
printf("\n");
printf("Runs TPM2_Unseal\n");
printf("\n");
printf("\t-ha\tsealed data item handle\n");
printf("\t[-pwd\tpassword sealed data item (default empty)]\n");
printf("\t[-of\toutput data (default do not save)]\n");
printf("\n");
printf("\t-se[0-2] session handle / attributes (default PWAP)\n");
printf("\t01\tcontinue\n");
printf("\t40\tresponse encrypt\n");
exit(1);
}