/* SPDX-License-Identifier: BSD-2-Clause */
/***********************************************************************;
 * Copyright (c) 2015 - 2017, Intel Corporation
 * All rights reserved.
 ***********************************************************************/

#ifdef HAVE_CONFIG_H
#include "config.h" // IWYU pragma: keep
#endif

#include "sysapi_util.h"     // for _TSS2_SYS_CONTEXT_BLOB, syscontext_cast
#include "tss2_common.h"     // for TSS2_RC, TSS2_SYS_RC_BAD_REFERENCE, UINT16
#include "tss2_mu.h"         // for Tss2_MU_TPM2B_ECC_POINT_Unmarshal, Tss2...
#include "tss2_sys.h"        // for TSS2_SYS_CONTEXT, TSS2L_SYS_AUTH_COMMAND
#include "tss2_tpm2_types.h" // for TPM2B_ECC_POINT, TPM2B_ECC_PARAMETER

TSS2_RC
Tss2_Sys_Commit_Prepare(TSS2_SYS_CONTEXT           *sysContext,
                        TPMI_DH_OBJECT              signHandle,
                        const TPM2B_ECC_POINT      *P1,
                        const TPM2B_SENSITIVE_DATA *s2,
                        const TPM2B_ECC_PARAMETER  *y2) {
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
    TSS2_RC                rval;

    if (!ctx)
        return TSS2_SYS_RC_BAD_REFERENCE;

    rval = CommonPreparePrologue(ctx, TPM2_CC_Commit);
    if (rval)
        return rval;

    rval = Tss2_MU_UINT32_Marshal(signHandle, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
    if (rval)
        return rval;

    if (!P1) {
        ctx->decryptNull = 1;

        rval = Tss2_MU_UINT16_Marshal(0, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
    } else {
        rval = Tss2_MU_TPM2B_ECC_POINT_Marshal(P1, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
    }

    if (rval)
        return rval;

    if (!s2) {
        rval = Tss2_MU_UINT16_Marshal(0, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);

    } else {

        rval = Tss2_MU_TPM2B_SENSITIVE_DATA_Marshal(s2, ctx->cmdBuffer, ctx->maxCmdSize,
                                                    &ctx->nextData);
    }

    if (rval)
        return rval;

    if (!y2) {
        rval = Tss2_MU_UINT16_Marshal(0, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);

    } else {

        rval = Tss2_MU_TPM2B_ECC_PARAMETER_Marshal(y2, ctx->cmdBuffer, ctx->maxCmdSize,
                                                   &ctx->nextData);
    }

    if (rval)
        return rval;

    ctx->decryptAllowed = 1;
    ctx->encryptAllowed = 1;
    ctx->authAllowed = 1;

    return CommonPrepareEpilogue(ctx);
}

TSS2_RC
Tss2_Sys_Commit_Complete(TSS2_SYS_CONTEXT *sysContext,
                         TPM2B_ECC_POINT  *K,
                         TPM2B_ECC_POINT  *L,
                         TPM2B_ECC_POINT  *E,
                         UINT16           *counter) {
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
    TSS2_RC                rval;

    if (!ctx)
        return TSS2_SYS_RC_BAD_REFERENCE;

    rval = CommonComplete(ctx);
    if (rval)
        return rval;

    rval = Tss2_MU_TPM2B_ECC_POINT_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData, K);
    if (rval)
        return rval;

    rval = Tss2_MU_TPM2B_ECC_POINT_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData, L);
    if (rval)
        return rval;

    rval = Tss2_MU_TPM2B_ECC_POINT_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData, E);
    if (rval)
        return rval;

    return Tss2_MU_UINT16_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData, counter);
}

TSS2_RC
Tss2_Sys_Commit(TSS2_SYS_CONTEXT             *sysContext,
                TPMI_DH_OBJECT                signHandle,
                TSS2L_SYS_AUTH_COMMAND const *cmdAuthsArray,
                const TPM2B_ECC_POINT        *P1,
                const TPM2B_SENSITIVE_DATA   *s2,
                const TPM2B_ECC_PARAMETER    *y2,
                TPM2B_ECC_POINT              *K,
                TPM2B_ECC_POINT              *L,
                TPM2B_ECC_POINT              *E,
                UINT16                       *counter,
                TSS2L_SYS_AUTH_RESPONSE      *rspAuthsArray) {
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
    TSS2_RC                rval;

    rval = Tss2_Sys_Commit_Prepare(sysContext, signHandle, P1, s2, y2);
    if (rval)
        return rval;

    rval = CommonOneCall(ctx, cmdAuthsArray, rspAuthsArray);
    if (rval)
        return rval;

    return Tss2_Sys_Commit_Complete(sysContext, K, L, E, counter);
}
