diff options
Diffstat (limited to 'src/tpm2/Response.c')
| -rw-r--r-- | src/tpm2/Response.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/tpm2/Response.c b/src/tpm2/Response.c new file mode 100644 index 0000000..40d62ce --- /dev/null +++ b/src/tpm2/Response.c @@ -0,0 +1,105 @@ +/********************************************************************************/ +/* */ +/* */ +/* 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; +} |