/* 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" // IWYU pragma: keep
#endif

#include <stdlib.h> // for EXIT_FAILURE, EXIT_SUCCESS, NULL

#include "tss2_common.h"     // for TSS2_RC
#include "tss2_esys.h"       // for ESYS_TR_NONE, Esys_Free, ESYS_TR_PASSWORD
#include "tss2_tpm2_types.h" // for TPM2B_AUTH, TPM2B_MAX_BUFFER, TPM2_ALG_...

#define LOGMODULE test
#include "util/log.h" // for goto_if_error

/** Test the ESYS commands HashSequenceStart, SequenceUpdate,
 *  and EventSequenceComplete.
 *
 * Tested ESYS commands:
 *  - Esys_EventSequenceComplete() (M)
 *  - Esys_HashSequenceStart() (M)
 *  - Esys_SequenceUpdate() (M)
 *
 * @param[in,out] esys_context The ESYS_CONTEXT.
 * @retval EXIT_FAILURE
 * @retval EXIT_SUCCESS
 */

int
test_esys_event_sequence_complete(ESYS_CONTEXT *esys_context) {
    TSS2_RC r;

    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 } };

    TPMI_ALG_HASH       hashAlg = TPM2_ALG_NULL; /**< enforce event Sequence */
    ESYS_TR             sequenceHandle_handle;
    TPML_DIGEST_VALUES *results = NULL;

    r = Esys_HashSequenceStart(esys_context, ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE, &auth,
                               hashAlg, &sequenceHandle_handle);
    goto_if_error(r, "Error: HashSequenceStart", error);

    TPM2B_MAX_BUFFER buffer = { .size = 20, .buffer = { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
                                                        20, 21, 22, 23, 24, 25, 26, 27, 28, 29 } };

    r = Esys_TR_SetAuth(esys_context, sequenceHandle_handle, &auth);
    goto_if_error(r, "Error esys TR_SetAuth ", error);

    r = Esys_SequenceUpdate(esys_context, sequenceHandle_handle, ESYS_TR_PASSWORD, ESYS_TR_NONE,
                            ESYS_TR_NONE, &buffer);
    goto_if_error(r, "Error: SequenceUpdate", error);

    ESYS_TR pcrHandle_handle = 16;

    r = Esys_EventSequenceComplete(esys_context, pcrHandle_handle, sequenceHandle_handle,
                                   ESYS_TR_PASSWORD, ESYS_TR_PASSWORD, ESYS_TR_NONE, &buffer,
                                   &results);
    goto_if_error(r, "Error: EventSequenceComplete", error);

    r = Esys_PCR_Reset(esys_context, pcrHandle_handle, ESYS_TR_PASSWORD, ESYS_TR_NONE,
                       ESYS_TR_NONE);
    goto_if_error(r, "Error: PCR_Reset", error);

    Esys_Free(results);
    return EXIT_SUCCESS;

error:
    Esys_Free(results);
    return EXIT_FAILURE;
}

int
test_invoke_esys(ESYS_CONTEXT *esys_context) {
    return test_esys_event_sequence_complete(esys_context);
}
