/* 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
#include "tss2_mu.h"         // for Tss2_MU_UINT16_Marshal, Tss2_MU_UINT32_...
#include "tss2_sys.h"        // for TSS2_SYS_CONTEXT, TSS2L_SYS_AUTH_COMMAND
#include "tss2_tpm2_types.h" // for TPMI_DH_OBJECT, TPM2B_DIGEST, TPM2B_ENC...

TSS2_RC
Tss2_Sys_ActivateCredential_Prepare(TSS2_SYS_CONTEXT             *sysContext,
                                    TPMI_DH_OBJECT                activateHandle,
                                    TPMI_DH_OBJECT                keyHandle,
                                    const TPM2B_ID_OBJECT        *credentialBlob,
                                    const TPM2B_ENCRYPTED_SECRET *secret) {
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
    TSS2_RC                rval;

    if (!ctx)
        return TSS2_SYS_RC_BAD_REFERENCE;

    rval = CommonPreparePrologue(ctx, TPM2_CC_ActivateCredential);
    if (rval)
        return rval;

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

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

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

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

        rval = Tss2_MU_TPM2B_ID_OBJECT_Marshal(credentialBlob, ctx->cmdBuffer, ctx->maxCmdSize,
                                               &ctx->nextData);
    }

    if (rval)
        return rval;

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

    } else {

        rval = Tss2_MU_TPM2B_ENCRYPTED_SECRET_Marshal(secret, 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_ActivateCredential_Complete(TSS2_SYS_CONTEXT *sysContext, TPM2B_DIGEST *certInfo) {
    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_TPM2B_DIGEST_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData,
                                          certInfo);
}

TSS2_RC
Tss2_Sys_ActivateCredential(TSS2_SYS_CONTEXT             *sysContext,
                            TPMI_DH_OBJECT                activateHandle,
                            TPMI_DH_OBJECT                keyHandle,
                            TSS2L_SYS_AUTH_COMMAND const *cmdAuthsArray,
                            const TPM2B_ID_OBJECT        *credentialBlob,
                            const TPM2B_ENCRYPTED_SECRET *secret,
                            TPM2B_DIGEST                 *certInfo,
                            TSS2L_SYS_AUTH_RESPONSE      *rspAuthsArray) {
    TSS2_RC                rval;
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);

    rval = Tss2_Sys_ActivateCredential_Prepare(sysContext, activateHandle, keyHandle,
                                               credentialBlob, secret);
    if (rval)
        return rval;

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

    return Tss2_Sys_ActivateCredential_Complete(sysContext, certInfo);
}
