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