mirror of https://github.com/wolfSSL/wolfTPM.git
109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/* tpm2_winapi.c
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*
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* Copyright (C) 2006-2025 wolfSSL Inc.
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*
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* This file is part of wolfTPM.
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*
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* wolfTPM is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfTPM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <wolftpm/tpm2_types.h>
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#ifdef WOLFTPM_WINAPI
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#include <wolftpm/tpm2_winapi.h>
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#include <windows.h>
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#include <tbs.h>
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/*
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* minGW doesn't define the structs necessary for TPM2, so the TBS
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* structures are defined here to match the windows API.
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*/
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#ifndef TBS_CONTEXT_VERSION_TWO
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#define TBS_CONTEXT_VERSION_TWO 2
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/**
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* This supports native windows API for TPM support. This uses the
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* Windows TBSI (TPM Base Service Interface)
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*/
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typedef struct tdTBS_CONTEXT_PARAMS2
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{
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UINT32 version;
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union
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{
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struct
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{
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UINT32 requestRaw : 1; // if set to 1, request raw context
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UINT32 includeTpm12 : 1; // if 1.2 device present, can use this
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UINT32 includeTpm20 : 1; // if 2.0 device present, can use this
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};
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UINT32 asUINT32;
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};
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} TBS_CONTEXT_PARAMS2, *PTBS_CONTEXT_PARAMS2;
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typedef const TBS_CONTEXT_PARAMS2 *PCTBS_CONTEXT_PARAMS2;
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#endif /* ! TBS_CONTEXT_VERSION_TWO */
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/* Talk to a TPM device using Windows TBS */
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int TPM2_WinApi_SendCommand(TPM2_CTX* ctx, TPM2_Packet* packet)
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{
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int rc = 0;
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TBS_CONTEXT_PARAMS2 tbs_params;
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tbs_params.version = TBS_CONTEXT_VERSION_TWO;
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tbs_params.includeTpm12 = 0;
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tbs_params.includeTpm20 = 1;
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/* open, if not already open */
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if (ctx->winCtx.tbs_context == NULL) {
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rc = Tbsi_Context_Create((TBS_CONTEXT_PARAMS*)&tbs_params,
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&ctx->winCtx.tbs_context);
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}
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/* send the command to the device. Error if the device send fails. */
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if (rc == 0) {
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uint32_t tmp = packet->size;
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rc = Tbsip_Submit_Command(ctx->winCtx.tbs_context,
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TBS_COMMAND_LOCALITY_ZERO,
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TBS_COMMAND_PRIORITY_NORMAL,
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packet->buf,
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packet->pos,
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packet->buf,
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(UINT32*)&tmp);
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packet->pos = tmp;
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}
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return rc;
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}
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int TPM2_WinApi_Cleanup(TPM2_CTX* ctx)
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{
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int rc = TPM_RC_SUCCESS;
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if (ctx->winCtx.tbs_context != NULL) {
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rc = Tbsip_Context_Close(ctx->winCtx.tbs_context);
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ctx->winCtx.tbs_context = NULL;
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}
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return rc;
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}
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#endif
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