/* SPDX-License-Identifier: BSD-2-Clause */
/***********************************************************************;
 * Copyright (c) 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
#include "tss2_mu.h"         // for Tss2_MU_TPM2_HANDLE_Marshal, Tss2_MU_TP...
#include "tss2_sys.h"        // for TSS2_SYS_CONTEXT, TSS2L_SYS_AUTH_COMMAND
#include "tss2_tpm2_types.h" // for TPM2B_MAX_BUFFER, TPMI_DH_OBJECT, TPMI_...

TSS2_RC
Tss2_Sys_AC_Send_Prepare(TSS2_SYS_CONTEXT *sysContext,
                         TPMI_DH_OBJECT    sendObject,
                         TPMI_RH_NV_AUTH   authHandle,
                         TPMI_RH_AC        ac,
                         TPM2B_MAX_BUFFER *acDataIn) {
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
    TSS2_RC                rval;

    if (!ctx)
        return TSS2_SYS_RC_BAD_REFERENCE;

    rval = CommonPreparePrologue(ctx, TPM2_CC_AC_Send);
    if (rval)
        return rval;

    rval = Tss2_MU_TPM2_HANDLE_Marshal(sendObject, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
    if (rval)
        return rval;

    rval = Tss2_MU_TPM2_HANDLE_Marshal(authHandle, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
    if (rval)
        return rval;

    rval = Tss2_MU_TPM2_HANDLE_Marshal(ac, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
    if (rval)
        return rval;

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

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

        rval = Tss2_MU_TPM2B_MAX_BUFFER_Marshal(acDataIn, ctx->cmdBuffer, ctx->maxCmdSize,
                                                &ctx->nextData);
    }
    if (rval)
        return rval;

    ctx->decryptAllowed = 1;
    ctx->encryptAllowed = 0;
    ctx->authAllowed = 1;

    return CommonPrepareEpilogue(ctx);
}

TSS2_RC
Tss2_Sys_AC_Send_Complete(TSS2_SYS_CONTEXT *sysContext, TPMS_AC_OUTPUT *acDataOut) {
    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;

    return Tss2_MU_TPMS_AC_OUTPUT_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData,
                                            acDataOut);
}

TSS2_RC
Tss2_Sys_AC_Send(TSS2_SYS_CONTEXT             *sysContext,
                 TPMI_DH_OBJECT                sendObject,
                 TPMI_RH_NV_AUTH               authHandle,
                 TPMI_RH_AC                    ac,
                 TSS2L_SYS_AUTH_COMMAND const *cmdAuthsArray,
                 TPM2B_MAX_BUFFER             *acDataIn,
                 TPMS_AC_OUTPUT               *acDataOut,
                 TSS2L_SYS_AUTH_RESPONSE      *rspAuthsArray) {
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
    TSS2_RC                rval;

    rval = Tss2_Sys_AC_Send_Prepare(sysContext, sendObject, authHandle, ac, acDataIn);
    if (rval)
        return rval;

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

    return Tss2_Sys_AC_Send_Complete(sysContext, acDataOut);
}
