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/********************************************************************************/
/* */
/* */
/* Written by Ken Goldman */
/* IBM Thomas J. Watson Research Center */
/* $Id: Response.c 1259 2018-07-10 19:11:09Z kgoldman $ */
/* */
/* Licenses and Notices */
/* */
/* 1. Copyright Licenses: */
/* */
/* - Trusted Computing Group (TCG) grants to the user of the source code in */
/* this specification (the "Source Code") a worldwide, irrevocable, */
/* nonexclusive, royalty free, copyright license to reproduce, create */
/* derivative works, distribute, display and perform the Source Code and */
/* derivative works thereof, and to grant others the rights granted herein. */
/* */
/* - The TCG grants to the user of the other parts of the specification */
/* (other than the Source Code) the rights to reproduce, distribute, */
/* display, and perform the specification solely for the purpose of */
/* developing products based on such documents. */
/* */
/* 2. Source Code Distribution Conditions: */
/* */
/* - Redistributions of Source Code must retain the above copyright licenses, */
/* this list of conditions and the following disclaimers. */
/* */
/* - Redistributions in binary form must reproduce the above copyright */
/* licenses, this list of conditions and the following disclaimers in the */
/* documentation and/or other materials provided with the distribution. */
/* */
/* 3. Disclaimers: */
/* */
/* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */
/* LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH */
/* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */
/* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */
/* Contact TCG Administration (admin@trustedcomputinggroup.org) for */
/* information on specification licensing rights available through TCG */
/* membership agreements. */
/* */
/* - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED */
/* WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR */
/* FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR */
/* NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY */
/* OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. */
/* */
/* - Without limitation, TCG and its members and licensors disclaim all */
/* liability, including liability for infringement of any proprietary */
/* rights, relating to use of information in this specification and to the */
/* implementation of this specification, and TCG disclaims all liability for */
/* cost of procurement of substitute goods or services, lost profits, loss */
/* of use, loss of data or any incidental, consequential, direct, indirect, */
/* or special damages, whether under contract, tort, warranty or otherwise, */
/* arising in any way out of use or reliance upon this specification or any */
/* information herein. */
/* */
/* (c) Copyright IBM Corp. and others, 2016 - 2018 */
/* */
/********************************************************************************/
/* 9.15 Response.c */
/* 9.15.1 Description */
/* This file contains the common code for building a response header, including setting the size of
the structure. command may be NULL if result is not TPM_RC_SUCCESS. */
/* 9.15.2 Includes and Defines */
#include "Tpm.h"
/* 9.15.3 BuildResponseHeader() */
/* Adds the response header to the response. It will update command->parameterSize to indicate the
total size of the response. */
void
BuildResponseHeader(
COMMAND *command, // IN: main control structure
BYTE *buffer, // OUT: the output buffer
TPM_RC result // IN: the response code
)
{
TPM_ST tag;
UINT32 size;
if(result != TPM_RC_SUCCESS)
{
tag = TPM_ST_NO_SESSIONS;
size = 10;
}
else
{
tag = command->tag;
// Compute the overall size of the response
size = STD_RESPONSE_HEADER + command->handleNum * sizeof(TPM_HANDLE);
size += command->parameterSize;
size += (command->tag == TPM_ST_SESSIONS) ?
command->authSize + sizeof(UINT32) : 0;
}
TPM_ST_Marshal(&tag, &buffer, NULL);
UINT32_Marshal(&size, &buffer, NULL);
TPM_RC_Marshal(&result, &buffer, NULL);
if(result == TPM_RC_SUCCESS)
{
if(command->handleNum > 0)
TPM_HANDLE_Marshal(&command->handles[0], &buffer, NULL);
if(tag == TPM_ST_SESSIONS)
UINT32_Marshal((UINT32 *)&command->parameterSize, &buffer, NULL);
}
command->parameterSize = size;
}
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