diff options
Diffstat (limited to 'src/tpm12/tpm_ver.c')
-rw-r--r-- | src/tpm12/tpm_ver.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/src/tpm12/tpm_ver.c b/src/tpm12/tpm_ver.c new file mode 100644 index 0000000..a88154e --- /dev/null +++ b/src/tpm12/tpm_ver.c @@ -0,0 +1,273 @@ +/********************************************************************************/ +/* */ +/* Ver Structure Handler */ +/* Written by Ken Goldman */ +/* IBM Thomas J. Watson Research Center */ +/* $Id: tpm_ver.c 4071 2010-04-29 19:26:45Z kgoldman $ */ +/* */ +/* (c) Copyright IBM Corporation 2006, 2010. */ +/* */ +/* All rights reserved. */ +/* */ +/* Redistribution and use in source and binary forms, with or without */ +/* modification, are permitted provided that the following conditions are */ +/* met: */ +/* */ +/* Redistributions of source code must retain the above copyright notice, */ +/* this list of conditions and the following disclaimer. */ +/* */ +/* Redistributions in binary form must reproduce the above copyright */ +/* notice, this list of conditions and the following disclaimer in the */ +/* documentation and/or other materials provided with the distribution. */ +/* */ +/* Neither the names of the IBM Corporation nor the names of its */ +/* contributors may be used to endorse or promote products derived from */ +/* this software without specific prior written permission. */ +/* */ +/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */ +/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */ +/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */ +/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */ +/* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ +/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ +/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */ +/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY */ +/* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */ +/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */ +/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +/********************************************************************************/ + +#include <stdio.h> + +#include "tpm_debug.h" +#include "tpm_error.h" +#include "tpm_structures.h" + +#include "tpm_ver.h" + +/* + TPM_STRUCT_VER + + This indicates the version of the structure. + + Version 1.2 deprecates the use of this structure in all other structures. The structure is not + deprecated as many of the structures that contain this structure are not deprecated. + + The rationale behind keeping this structure and adding the new version structure is that in + version 1.1 this structure was in use for two purposes. The first was to indicate the structure + version, and in that mode the revMajor and revMinor were supposed to be set to 0. The second use + was in TPM_GetCapability and the structure would then return the correct revMajor and + revMinor. This use model caused problems in keeping track of when the revs were or were not set + and how software used the information. Version 1.2 went to structure tags. Some structures did not + change and the TPM_STRUCT_VER is still in use. To avoid the problems from 1.1 this structure now + is a fixed value and only remains for backwards compatibility. Structure versioning comes from the + tag on the structure and the TPM_GetCapability response for TPM versioning uses TPM_VERSION. +*/ + +/* TPM_StructVer_Init() + + sets members to default values + sets all pointers to NULL and sizes to 0 + always succeeds - no return code +*/ + +void TPM_StructVer_Init(TPM_STRUCT_VER *tpm_struct_ver) +{ + printf(" TPM_StructVer_Init:\n"); + tpm_struct_ver->major = 0x01; + tpm_struct_ver->minor = 0x01; + tpm_struct_ver->revMajor = 0x00; + tpm_struct_ver->revMinor = 0x00; + return; +} + +/* TPM_StructVer_Load() + + deserialize the structure from a 'stream' + 'stream_size' is checked for sufficient data + returns 0 or error codes +*/ + +TPM_RESULT TPM_StructVer_Load(TPM_STRUCT_VER *tpm_struct_ver, + unsigned char **stream, + uint32_t *stream_size) +{ + TPM_RESULT rc = 0; + + printf(" TPM_StructVer_Load:\n"); + if (rc == 0) { + rc = TPM_Load8(&(tpm_struct_ver->major), stream, stream_size); + } + if (rc == 0) { + rc = TPM_Load8(&(tpm_struct_ver->minor), stream, stream_size); + } + if (rc == 0) { + rc = TPM_Load8(&(tpm_struct_ver->revMajor), stream, stream_size); + } + if (rc == 0) { + rc = TPM_Load8(&(tpm_struct_ver->revMinor), stream, stream_size); + } + return rc; +} + + +/* TPM_StructVer_Store() + + serialize the structure to a stream contained in 'sbuffer' + returns 0 or error codes +*/ + +TPM_RESULT TPM_StructVer_Store(TPM_STORE_BUFFER *sbuffer, + const TPM_STRUCT_VER *tpm_struct_ver) +{ + TPM_RESULT rc = 0; + + printf(" TPM_StructVer_Store:\n"); + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_struct_ver->major), sizeof(BYTE)); + } + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_struct_ver->minor), sizeof(BYTE)); + } + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_struct_ver->revMajor), sizeof(BYTE)); + } + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_struct_ver->revMinor), sizeof(BYTE)); + } + return rc; +} + +/* TPM_StructVer_Copy() copies the src to the destination. */ + +void TPM_StructVer_Copy(TPM_STRUCT_VER *tpm_struct_ver_dest, + TPM_STRUCT_VER *tpm_struct_ver_src) +{ + printf(" TPM_StructVer_Copy:\n"); + tpm_struct_ver_dest->major = tpm_struct_ver_src->major; + tpm_struct_ver_dest->minor = tpm_struct_ver_src->minor; + tpm_struct_ver_dest->revMajor = tpm_struct_ver_src->revMajor; + tpm_struct_ver_dest->revMinor = tpm_struct_ver_src->revMinor; + return; +} + +/* TPM_StructVer_CheckVer() checks that the major and minor version are 0x01, 0x01 */ + +TPM_RESULT TPM_StructVer_CheckVer(TPM_STRUCT_VER *tpm_struct_ver) +{ + TPM_RESULT rc = 0; + + printf(" TPM_StructVer_CheckVer: version %u.%u.%u.%u\n", + tpm_struct_ver->major, + tpm_struct_ver->minor, + tpm_struct_ver->revMajor, + tpm_struct_ver->revMinor); + if ((tpm_struct_ver->major != 0x01) || + (tpm_struct_ver->minor != 0x01)) { + printf("TPM_StructVer_CheckVer: Error checking version\n"); + rc = TPM_BAD_VERSION; + } + return rc; +} + +/* + TPM_VERSION + + This structure provides information relative the version of the TPM. This structure should only be + in use by TPM_GetCapability to provide the information relative to the TPM. +*/ + +void TPM_Version_Init(TPM_VERSION *tpm_version) +{ + printf(" TPM_Version_Init:\n"); + tpm_version->major = 0; + tpm_version->minor = 0; + tpm_version->revMajor = 0; + tpm_version->revMinor = 0; + return; +} + +void TPM_Version_Set(TPM_VERSION *tpm_version, + TPM_PERMANENT_DATA *tpm_permanent_data) +{ + printf(" TPM_Version_Set:\n"); + /* This SHALL indicate the major version of the TPM, mostSigVer MUST be 0x01, leastSigVer MUST + be 0x00 */ + tpm_version->major = TPM_MAJOR; + /* This SHALL indicate the minor version of the TPM, mostSigVer MUST be 0x01 or 0x02, + leastSigVer MUST be 0x00 */ + tpm_version->minor = TPM_MINOR; + /* This SHALL be the value of the TPM_PERMANENT_DATA -> revMajor */ + tpm_version->revMajor = tpm_permanent_data->revMajor; + /* This SHALL be the value of the TPM_PERMANENT_DATA -> revMinor */ + tpm_version->revMinor = tpm_permanent_data->revMinor; + return; +} + +#if 0 +/* TPM_Version_Load() + + deserialize the structure from a 'stream' + 'stream_size' is checked for sufficient data + returns 0 or error codes + + Before use, call TPM_Version_Init() +*/ + +TPM_RESULT TPM_Version_Load(TPM_VERSION *tpm_version, + unsigned char **stream, + uint32_t *stream_size) +{ + TPM_RESULT rc = 0; + + printf(" TPM_Version_Load:\n"); + /* load major */ + if (rc == 0) { + rc = TPM_Load8(&(tpm_version->major), stream, stream_size); + } + /* load minor */ + if (rc == 0) { + rc = TPM_Load8(&(tpm_version->minor), stream, stream_size); + } + /* load revMajor */ + if (rc == 0) { + rc = TPM_Load8(&(tpm_version->revMajor), stream, stream_size); + } + /* load revMinor */ + if (rc == 0) { + rc = TPM_Load8(&(tpm_version->revMinor), stream, stream_size); + } + return rc; +} +#endif +/* TPM_Version_Store() + + serialize the structure to a stream contained in 'sbuffer' + returns 0 or error codes +*/ + +TPM_RESULT TPM_Version_Store(TPM_STORE_BUFFER *sbuffer, + const TPM_VERSION *tpm_version) + +{ + TPM_RESULT rc = 0; + + printf(" TPM_Version_Store:\n"); + /* store major */ + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_version->major), sizeof(BYTE)); + } + /* store minor */ + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_version->minor), sizeof(BYTE)); + } + /* store revMajor */ + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_version->revMajor), sizeof(BYTE)); + } + /* store revMinor */ + if (rc == 0) { + rc = TPM_Sbuffer_Append(sbuffer, &(tpm_version->revMinor), sizeof(BYTE)); + } + return rc; +} |