Implemented TCG PTS Generate Attestation Evidence attribute
Added two new Attributes to sources in Makefile
This commit is contained in:
Sansar Choinyambuu
committed by
Andreas Steffen
Andreas Steffen
parent
befdbcb769
commit
cbb7925245
@@ -23,7 +23,9 @@ libimcv_la_SOURCES = \
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tcg/tcg_pts_attr_get_tpm_version_info.h tcg/tcg_pts_attr_get_tpm_version_info.c \
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tcg/tcg_pts_attr_tpm_version_info.h tcg/tcg_pts_attr_tpm_version_info.c \
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tcg/tcg_pts_attr_get_aik.h tcg/tcg_pts_attr_get_aik.c \
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tcg/tcg_pts_attr_aik.h tcg/tcg_pts_attr_aik.c
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tcg/tcg_pts_attr_aik.h tcg/tcg_pts_attr_aik.c \
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tcg/tcg_pts_attr_req_funct_comp_evid.h tcg/tcg_pts_attr_req_funct_comp_evid.c \
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tcg/tcg_pts_attr_gen_attest_evid.h tcg/tcg_pts_attr_gen_attest_evid.c
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# CFLAGS = -Wall -Werror
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@@ -0,0 +1,193 @@
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/*
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* Copyright (C) 2011 Sansar Choinyambuu
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "tcg_pts_attr_gen_attest_evid.h"
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#include <pa_tnc/pa_tnc_msg.h>
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#include <bio/bio_writer.h>
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#include <bio/bio_reader.h>
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#include <debug.h>
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typedef struct private_tcg_pts_attr_gen_attest_evid_t private_tcg_pts_attr_gen_attest_evid_t;
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/**
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* Generate Attestation Evidence (see section 3.14.2 of PTS Protocol: Binding to TNC IF-M Specification)
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*
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* 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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*
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Reserved |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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*/
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#define PTS_GEN_ATTEST_EVID_SIZE 4
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#define PTS_GEN_ATTEST_EVID_RESERVED 0x00
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/**
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* Private data of an tcg_pts_attr_gen_attest_evid_t object.
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*/
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struct private_tcg_pts_attr_gen_attest_evid_t {
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/**
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* Public members of tcg_pts_attr_gen_attest_evid_t
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*/
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tcg_pts_attr_gen_attest_evid_t public;
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/**
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* Attribute vendor ID
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*/
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pen_t vendor_id;
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/**
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* Attribute type
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*/
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u_int32_t type;
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/**
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* Attribute value
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*/
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chunk_t value;
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/**
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* Noskip flag
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*/
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bool noskip_flag;
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};
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METHOD(pa_tnc_attr_t, get_vendor_id, pen_t,
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private_tcg_pts_attr_gen_attest_evid_t *this)
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{
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return this->vendor_id;
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}
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METHOD(pa_tnc_attr_t, get_type, u_int32_t,
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private_tcg_pts_attr_gen_attest_evid_t *this)
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{
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return this->type;
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}
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METHOD(pa_tnc_attr_t, get_value, chunk_t,
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private_tcg_pts_attr_gen_attest_evid_t *this)
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{
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return this->value;
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}
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METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
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private_tcg_pts_attr_gen_attest_evid_t *this)
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{
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return this->noskip_flag;
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}
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METHOD(pa_tnc_attr_t, set_noskip_flag,void,
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private_tcg_pts_attr_gen_attest_evid_t *this, bool noskip)
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{
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this->noskip_flag = noskip;
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}
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METHOD(pa_tnc_attr_t, build, void,
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private_tcg_pts_attr_gen_attest_evid_t *this)
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{
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bio_writer_t *writer;
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writer = bio_writer_create(PTS_GEN_ATTEST_EVID_SIZE);
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writer->write_uint32 (writer, PTS_GEN_ATTEST_EVID_RESERVED);
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this->value = chunk_clone(writer->get_buf(writer));
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writer->destroy(writer);
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}
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METHOD(pa_tnc_attr_t, process, status_t,
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private_tcg_pts_attr_gen_attest_evid_t *this, u_int32_t *offset)
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{
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bio_reader_t *reader;
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u_int32_t reserved;
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if (this->value.len < PTS_GEN_ATTEST_EVID_SIZE)
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{
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DBG1(DBG_TNC, "insufficient data for Generate Attestation Evidence");
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*offset = 0;
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return FAILED;
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}
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reader = bio_reader_create(this->value);
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reader->read_uint32 (reader, &reserved);
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reader->destroy(reader);
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return SUCCESS;
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}
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METHOD(pa_tnc_attr_t, destroy, void,
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private_tcg_pts_attr_gen_attest_evid_t *this)
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{
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free(this->value.ptr);
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free(this);
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}
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/**
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* Described in header.
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*/
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pa_tnc_attr_t *tcg_pts_attr_gen_attest_evid_create()
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{
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private_tcg_pts_attr_gen_attest_evid_t *this;
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INIT(this,
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.public = {
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.pa_tnc_attribute = {
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.get_vendor_id = _get_vendor_id,
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.get_type = _get_type,
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.get_value = _get_value,
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.get_noskip_flag = _get_noskip_flag,
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.set_noskip_flag = _set_noskip_flag,
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.build = _build,
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.process = _process,
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.destroy = _destroy,
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},
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},
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.vendor_id = PEN_TCG,
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.type = TCG_PTS_GEN_ATTEST_EVID,
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);
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return &this->public.pa_tnc_attribute;
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}
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/**
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* Described in header.
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*/
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pa_tnc_attr_t *tcg_pts_attr_gen_attest_evid_create_from_data(chunk_t data)
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{
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private_tcg_pts_attr_gen_attest_evid_t *this;
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INIT(this,
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.public = {
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.pa_tnc_attribute = {
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.get_vendor_id = _get_vendor_id,
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.get_type = _get_type,
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.get_value = _get_value,
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.get_noskip_flag = _get_noskip_flag,
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.set_noskip_flag = _set_noskip_flag,
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.build = _build,
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.process = _process,
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.destroy = _destroy,
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},
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},
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.vendor_id = PEN_TCG,
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.type = TCG_PTS_GEN_ATTEST_EVID,
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.value = chunk_clone(data),
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);
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return &this->public.pa_tnc_attribute;
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}
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@@ -0,0 +1,53 @@
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/*
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* Copyright (C) 2011 Sansar Choinyambuu
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup tcg_pts_attr_gen_attest_evid tcg_pts_attr_gen_attest_evid
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* @{ @ingroup tcg_pts_attr_gen_attest_evid
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*/
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#ifndef TCG_PTS_ATTR_GEN_ATTEST_EVID_H_
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#define TCG_PTS_ATTR_GEN_ATTEST_EVID_H_
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typedef struct tcg_pts_attr_gen_attest_evid_t tcg_pts_attr_gen_attest_evid_t;
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#include "tcg_attr.h"
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#include "pa_tnc/pa_tnc_attr.h"
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/**
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* Class implementing the TCG PTS Generate Attestation Evidence Attribute
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*
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*/
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struct tcg_pts_attr_gen_attest_evid_t {
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/**
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* Public PA-TNC attribute interface
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*/
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pa_tnc_attr_t pa_tnc_attribute;
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};
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/**
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* Creates an tcg_pts_attr_gen_attest_evid_t object
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*/
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pa_tnc_attr_t* tcg_pts_attr_gen_attest_evid_create();
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/**
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* Creates an tcg_pts_attr_gen_attest_evid_t object from received data
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*
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* @param value unparsed attribute value
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*/
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pa_tnc_attr_t* tcg_pts_attr_gen_attest_evid_create_from_data(chunk_t value);
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#endif /** TCG_PTS_ATTR_GEN_ATTEST_EVID_H_ @}*/
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