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/* SPDX-License-Identifier: BSD-2-Clause */
/*******************************************************************************
* Copyright 2017-2018, Fraunhofer SIT sponsored by Infineon Technologies AG
* All rights reserved.
*******************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include "tss2_esys.h"
#include "tss2_mu.h"
#include "esys_iutil.h"
#include "test-esapi.h"
#define LOGMODULE test
#include "util/log.h"
#include "util/aux_util.h"
#define FLUSH true
#define NOT_FLUSH false
/*
* Function to compare policy digest with expected digest.
* The digest is computed with Esys_PolicyGetDigest.
*/
bool
cmp_policy_digest(ESYS_CONTEXT * esys_context,
ESYS_TR * session,
TPM2B_DIGEST * expected_digest,
char *comment, bool flush_session)
{
TSS2_RC r;
TPM2B_DIGEST *policyDigest;
r = Esys_PolicyGetDigest(esys_context,
*session,
ESYS_TR_NONE,
ESYS_TR_NONE, ESYS_TR_NONE, &policyDigest);
goto_if_error(r, "Error: PolicyGetDigest", error);
LOGBLOB_DEBUG(&policyDigest->buffer[0], policyDigest->size,
"POLICY DIGEST");
if (policyDigest->size != 20
|| memcmp(&policyDigest->buffer[0], &expected_digest->buffer[0],
policyDigest->size)) {
free(policyDigest);
LOG_ERROR("Error: Policy%s digest did not match expected policy.",
comment);
return false;
}
free(policyDigest);
if (flush_session) {
r = Esys_FlushContext(esys_context, *session);
goto_if_error(r, "Error: PolicyGetDigest", error);
*session = ESYS_TR_NONE;
}
return true;
error:
return false;
}
/** This test is intended to test the ESAPI policy commands, not tested
* in other test cases.
* When possoble the commands are tested with a
* trial session and the policy digest is compared with the expected digest.
*
* Tested ESAPI commands:
* - Esys_PolicyPhysicalPresence() (O)
*
* @param[in,out] esys_context The ESYS_CONTEXT.
* @retval EXIT_FAILURE
* @retval EXIT_SKIP
* @retval EXIT_SUCCESS
*/
int
test_esys_policy_physical_presence_opt(ESYS_CONTEXT * esys_context)
{
TSS2_RC r;
int failure_return = EXIT_FAILURE;
/* Dummy parameters for trial sessoin */
ESYS_TR sessionTrial = ESYS_TR_NONE;
TPMT_SYM_DEF symmetricTrial = {.algorithm = TPM2_ALG_AES,
.keyBits = {.aes = 128},
.mode = {.aes = TPM2_ALG_CFB}
};
TPM2B_NONCE nonceCallerTrial = {
.size = 20,
.buffer = {11, 12, 13, 14, 15, 16, 17, 18, 19, 11,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30}
};
/*
* Test PolicyPhysicalPresence
*/
r = Esys_StartAuthSession(esys_context, ESYS_TR_NONE, ESYS_TR_NONE,
ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE,
&nonceCallerTrial,
TPM2_SE_TRIAL, &symmetricTrial, TPM2_ALG_SHA1,
&sessionTrial);
goto_if_error(r, "Error: During initialization of policy trial session",
error);
r = Esys_PolicyPhysicalPresence(esys_context,
sessionTrial,
ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE);
if ((r == TPM2_RC_COMMAND_CODE) ||
(r == (TPM2_RC_COMMAND_CODE | TSS2_RESMGR_RC_LAYER)) ||
(r == (TPM2_RC_COMMAND_CODE | TSS2_RESMGR_TPM_RC_LAYER))) {
LOG_WARNING("Command TPM2_PolicyPhysicalPresence not supported by TPM.");
failure_return = EXIT_SKIP;
goto error;
} else {
goto_if_error(r, "Error: PolicyPhysicalPresence", error);
}
TPM2B_DIGEST expectedPolicyPhysicalPresence = {
.size = 20,
.buffer = {0x9a, 0xcb, 0x06, 0x39, 0x5f, 0x83, 0x1f, 0x88, 0xe8, 0x9e,
0xea, 0xc2, 0x94, 0x42, 0xcb, 0x0e, 0xbe, 0x94, 0x85, 0xab}
};
if (!cmp_policy_digest
(esys_context, &sessionTrial, &expectedPolicyPhysicalPresence,
"PhysicalPresence", FLUSH))
goto error;
return EXIT_SUCCESS;
error:
if (sessionTrial != ESYS_TR_NONE) {
if (Esys_FlushContext(esys_context, sessionTrial) != TSS2_RC_SUCCESS) {
LOG_ERROR("Cleanup sessionTrial failed.");
}
}
return failure_return;
}
int
test_invoke_esapi(ESYS_CONTEXT * esys_context) {
return test_esys_policy_physical_presence_opt(esys_context);
}