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294 lines
10 KiB
294 lines
10 KiB
/* SPDX-License-Identifier: BSD-2-Clause */
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/*******************************************************************************
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* Copyright 2017-2018, Fraunhofer SIT sponsored by Infineon Technologies AG
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* All rights reserved.
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*******************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include "tss2_esys.h"
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#include "esys_iutil.h"
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#define LOGMODULE test
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#include "util/log.h"
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#include "util/aux_util.h"
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/** This test is intended to test the ESAPI commands PolicyAuthValue,
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* PolicyCommandCode, Esys_PolicyGetDigest, and NV_ChangeAuth.
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*
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* First in a trial session the policy value to ensure that the auth value
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* is included in the policy session used for NV_ChangeAuth is
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* computed.
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* A NV ram space with this policy is defined afterwards.
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* With a real policy session the auth value of this NV ram space
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* will be changed.
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*
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* Tested ESAPI commands:
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* - Esys_FlushContext() (M)
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* - Esys_NV_ChangeAuth() (M)
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* - Esys_NV_DefineSpace() (M)
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* - Esys_NV_UndefineSpace() (M)
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* - Esys_PolicyAuthValue() (M)
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* - Esys_PolicyCommandCode() (M)
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* - Esys_PolicyGetDigest() (M)
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* - Esys_StartAuthSession() (M)
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*
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* @param[in,out] esys_context The ESYS_CONTEXT.
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* @retval EXIT_FAILURE
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* @retval EXIT_SUCCESS
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*/
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int
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test_esys_policy_nv_changeauth(ESYS_CONTEXT * esys_context)
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{
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TSS2_RC r;
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ESYS_TR nvHandle = ESYS_TR_NONE;
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ESYS_TR policySession = ESYS_TR_NONE;
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TPM2B_DIGEST *policyDigestTrial = NULL;
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/*
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* Firth the policy value for changing the auth value of an NV index has to be
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* determined with a policy trial session.
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*/
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ESYS_TR sessionTrial = ESYS_TR_NONE;
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TPMT_SYM_DEF symmetricTrial = {.algorithm = TPM2_ALG_AES,
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.keyBits = {.aes = 128},
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.mode = {.aes = TPM2_ALG_CFB}
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};
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TPM2B_NONCE nonceCallerTrial = {
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.size = 20,
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.buffer = {11, 12, 13, 14, 15, 16, 17, 18, 19, 11,
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21, 22, 23, 24, 25, 26, 27, 28, 29, 30}
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};
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r = Esys_StartAuthSession(esys_context, ESYS_TR_NONE, ESYS_TR_NONE,
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ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE,
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&nonceCallerTrial,
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TPM2_SE_TRIAL, &symmetricTrial, TPM2_ALG_SHA1,
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&sessionTrial);
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goto_if_error(r, "Error: During initialization of policy trial session", error);
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r = Esys_PolicyAuthValue(esys_context,
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sessionTrial,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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ESYS_TR_NONE
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);
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goto_if_error(r, "Error: PolicyAuthValue", error);
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r = Esys_PolicyCommandCode(esys_context,
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sessionTrial,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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TPM2_CC_NV_ChangeAuth
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);
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goto_if_error(r, "Error: PolicyCommandCode", error);
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r = Esys_PolicyGetDigest(esys_context,
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sessionTrial,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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&policyDigestTrial
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);
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goto_if_error(r, "Error: PolicyGetDigest", error);
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r = Esys_FlushContext(esys_context, sessionTrial);
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goto_if_error(r, "Flushing context", error);
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TPM2B_AUTH auth = {.size = 20,
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.buffer={10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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20, 21, 22, 23, 24, 25, 26, 27, 28, 29}};
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TPM2B_NV_PUBLIC publicInfo = {
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.size = 0,
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.nvPublic = {
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.nvIndex =TPM2_NV_INDEX_FIRST,
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.nameAlg = TPM2_ALG_SHA1,
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.attributes = (
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TPMA_NV_OWNERWRITE |
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TPMA_NV_AUTHWRITE |
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TPMA_NV_WRITE_STCLEAR |
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TPMA_NV_READ_STCLEAR |
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TPMA_NV_AUTHREAD |
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TPMA_NV_OWNERREAD
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),
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.authPolicy = *policyDigestTrial,
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.dataSize = 32,
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}
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};
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r = Esys_NV_DefineSpace(esys_context,
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ESYS_TR_RH_OWNER,
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ESYS_TR_PASSWORD,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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&auth,
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&publicInfo,
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&nvHandle);
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goto_if_error(r, "Error esys define nv space", error);
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TPM2B_AUTH newAuth = {.size = 20,
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.buffer={30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47, 48, 49}};
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TPMT_SYM_DEF policySymmetric = {.algorithm = TPM2_ALG_AES,
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.keyBits = {.aes = 128},
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.mode = {.aes = TPM2_ALG_CFB}
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};
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TPM2B_NONCE policyNonceCaller = {
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.size = 20,
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.buffer = {11, 12, 13, 14, 15, 16, 17, 18, 19, 11,
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21, 22, 23, 24, 25, 26, 27, 28, 29, 30}
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};
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r = Esys_StartAuthSession(esys_context, ESYS_TR_NONE, ESYS_TR_NONE,
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ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE,
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&policyNonceCaller,
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TPM2_SE_POLICY, &policySymmetric, TPM2_ALG_SHA1,
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&policySession);
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goto_if_error(r, "Error: During initialization of policy trial session", error);
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r = Esys_PolicyAuthValue(esys_context,
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policySession,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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ESYS_TR_NONE
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);
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goto_if_error(r, "Error: PolicyAuthValue", error);
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r = Esys_PolicyCommandCode(esys_context,
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policySession,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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TPM2_CC_NV_ChangeAuth
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);
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goto_if_error(r, "Error: PolicyCommandCode", error);
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r = Esys_NV_ChangeAuth(esys_context,
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nvHandle,
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policySession,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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&newAuth
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);
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goto_if_error(r, "Error: NV_ChangeAuth", error);
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r = Esys_NV_UndefineSpace(esys_context,
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ESYS_TR_RH_OWNER,
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nvHandle,
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ESYS_TR_PASSWORD,
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ESYS_TR_NONE,
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ESYS_TR_NONE
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);
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goto_if_error(r, "Error: NV_UndefineSpace", error);
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r = Esys_FlushContext(esys_context, policySession);
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goto_if_error(r, "Flushing context", error);
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/* Check DefineSpace with auth equal NULL */
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r = Esys_NV_DefineSpace(esys_context,
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ESYS_TR_RH_OWNER,
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ESYS_TR_PASSWORD,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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NULL,
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&publicInfo,
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&nvHandle);
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goto_if_error(r, "Error esys define nv space", error);
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r = Esys_StartAuthSession(esys_context, ESYS_TR_NONE, ESYS_TR_NONE,
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ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE,
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&policyNonceCaller,
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TPM2_SE_POLICY, &policySymmetric, TPM2_ALG_SHA1,
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&policySession);
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goto_if_error(r, "Error: During initialization of policy trial session", error);
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r = Esys_PolicyAuthValue(esys_context,
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policySession,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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ESYS_TR_NONE
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);
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goto_if_error(r, "Error: PolicyAuthValue", error);
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r = Esys_PolicyCommandCode(esys_context,
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policySession,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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TPM2_CC_NV_ChangeAuth
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);
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goto_if_error(r, "Error: PolicyCommandCode", error);
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r = Esys_NV_ChangeAuth(esys_context,
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nvHandle,
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policySession,
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ESYS_TR_NONE,
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ESYS_TR_NONE,
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NULL
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);
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goto_if_error(r, "Error: NV_ChangeAuth", error);
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r = Esys_NV_UndefineSpace(esys_context,
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ESYS_TR_RH_OWNER,
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nvHandle,
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ESYS_TR_PASSWORD,
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ESYS_TR_NONE,
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ESYS_TR_NONE
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);
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goto_if_error(r, "Error: NV_UndefineSpace", error);
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r = Esys_FlushContext(esys_context, policySession);
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goto_if_error(r, "Flushing context", error);
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Esys_Free(policyDigestTrial);
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return EXIT_SUCCESS;
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error:
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if (sessionTrial != ESYS_TR_NONE) {
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if (Esys_FlushContext(esys_context, sessionTrial) != TSS2_RC_SUCCESS) {
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LOG_ERROR("Cleanup policySession failed.");
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}
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}
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if (policySession != ESYS_TR_NONE) {
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if (Esys_FlushContext(esys_context, policySession) != TSS2_RC_SUCCESS) {
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LOG_ERROR("Cleanup policySession failed.");
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}
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}
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if (nvHandle != ESYS_TR_NONE) {
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if (Esys_NV_UndefineSpace(esys_context,
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ESYS_TR_RH_OWNER,
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nvHandle,
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ESYS_TR_PASSWORD,
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ESYS_TR_NONE,
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ESYS_TR_NONE) != TSS2_RC_SUCCESS) {
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LOG_ERROR("Cleanup nvHandle failed.");
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}
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}
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Esys_Free(policyDigestTrial);
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return EXIT_FAILURE;
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}
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int
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test_invoke_esapi(ESYS_CONTEXT * esys_context) {
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return test_esys_policy_nv_changeauth(esys_context);
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}
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