320 lines
8.6 KiB
C
320 lines
8.6 KiB
C
/*
|
|
* Copyright (C) 2011 Sansar Choinyambuu
|
|
* Copyright (C) 2012-2016 Andreas Steffen
|
|
* HSR Hochschule fuer Technik Rapperswil
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*/
|
|
|
|
/**
|
|
* @defgroup pts pts
|
|
* @{ @ingroup libimcv
|
|
*/
|
|
|
|
#ifndef PTS_H_
|
|
#define PTS_H_
|
|
|
|
typedef struct pts_t pts_t;
|
|
|
|
#include "pts_error.h"
|
|
#include "pts_proto_caps.h"
|
|
#include "pts_meas_algo.h"
|
|
#include "pts_file_meas.h"
|
|
#include "pts_file_meta.h"
|
|
#include "pts_dh_group.h"
|
|
#include "pts_pcr.h"
|
|
#include "pts_req_func_comp_evid.h"
|
|
#include "pts_simple_evid_final.h"
|
|
#include "components/pts_comp_func_name.h"
|
|
|
|
#include <library.h>
|
|
#include <collections/linked_list.h>
|
|
|
|
/**
|
|
* UTF-8 encoding of the character used to delimiter the filename
|
|
*/
|
|
#define SOLIDUS_UTF 0x2F
|
|
#define REVERSE_SOLIDUS_UTF 0x5C
|
|
|
|
/**
|
|
* PCR indices used for measurements of various functional components
|
|
*/
|
|
#define PCR_BIOS 0
|
|
#define PCR_PLATFORM_EXT 1
|
|
#define PCR_MOTHERBOARD 1
|
|
#define PCR_OPTION_ROMS 2
|
|
#define PCR_IPL 4
|
|
|
|
#define PCR_TBOOT_POLICY 17
|
|
#define PCR_TBOOT_MLE 18
|
|
|
|
#define PCR_TGRUB_MBR_STAGE1 4
|
|
#define PCR_TGRUB_STAGE2_PART1 8
|
|
#define PCR_TGRUB_STAGE2_PART2 9
|
|
#define PCR_TGRUB_CMD_LINE_ARGS 12
|
|
#define PCR_TGRUB_CHECKFILE 13
|
|
#define PCR_TGRUB_LOADED_FILES 14
|
|
|
|
#define PCR_DEBUG 16
|
|
|
|
/**
|
|
* Length of the generated nonce used for calculation of shared secret
|
|
*/
|
|
#define ASSESSMENT_SECRET_LEN 20
|
|
|
|
/**
|
|
* Length of the TPM_QUOTE_INFO structure, TPM Spec 1.2
|
|
*/
|
|
#define TPM_QUOTE_INFO_LEN 48
|
|
|
|
/**
|
|
* Hashing algorithm used by tboot and trustedGRUB
|
|
*/
|
|
#define TRUSTED_HASH_ALGO PTS_MEAS_ALGO_SHA1
|
|
|
|
/**
|
|
* Class implementing the TCG Platform Trust Service (PTS)
|
|
*
|
|
*/
|
|
struct pts_t {
|
|
|
|
/**
|
|
* Get PTS Protocol Capabilities
|
|
*
|
|
* @return Protocol capabilities flags
|
|
*/
|
|
pts_proto_caps_flag_t (*get_proto_caps)(pts_t *this);
|
|
|
|
/**
|
|
* Set PTS Protocol Capabilities
|
|
*
|
|
* @param flags Protocol capabilities flags
|
|
*/
|
|
void (*set_proto_caps)(pts_t *this, pts_proto_caps_flag_t flags);
|
|
|
|
/**
|
|
* Get PTS Measurement Algorithm
|
|
*
|
|
* @return PTS measurement algorithm
|
|
*/
|
|
pts_meas_algorithms_t (*get_meas_algorithm)(pts_t *this);
|
|
|
|
/**
|
|
* Set PTS Measurement Algorithm
|
|
*
|
|
* @param algorithm PTS measurement algorithm
|
|
*/
|
|
void (*set_meas_algorithm)(pts_t *this, pts_meas_algorithms_t algorithm);
|
|
|
|
/**
|
|
* Get DH Hash Algorithm
|
|
*
|
|
* @return DH hash algorithm
|
|
*/
|
|
pts_meas_algorithms_t (*get_dh_hash_algorithm)(pts_t *this);
|
|
|
|
/**
|
|
* Set DH Hash Algorithm
|
|
*
|
|
* @param algorithm DH hash algorithm
|
|
*/
|
|
void (*set_dh_hash_algorithm)(pts_t *this, pts_meas_algorithms_t algorithm);
|
|
|
|
/**
|
|
* Create PTS Diffie-Hellman object and nonce
|
|
*
|
|
* @param group PTS DH group
|
|
* @param nonce_len Nonce length
|
|
* @return TRUE if creation was successful
|
|
*
|
|
*/
|
|
bool (*create_dh_nonce)(pts_t *this, pts_dh_group_t group, int nonce_len);
|
|
|
|
/**
|
|
* Get my Diffie-Hellman public value
|
|
*
|
|
* @param value My public DH value
|
|
* @param nonce My DH nonce
|
|
* @return TRUE if public value retrieved successfully
|
|
*/
|
|
bool (*get_my_public_value)(pts_t *this, chunk_t *value, chunk_t *nonce);
|
|
|
|
/**
|
|
* Set peer Diffie.Hellman public value
|
|
*
|
|
* @param value Peer public DH value
|
|
* @param nonce Peer DH nonce
|
|
* @return TRUE if public value set successfully
|
|
*/
|
|
bool (*set_peer_public_value) (pts_t *this, chunk_t value, chunk_t nonce);
|
|
|
|
/**
|
|
* Calculates assessment secret to be used for TPM Quote as ExternalData
|
|
*
|
|
* @return TRUE unless both DH public values
|
|
* and nonces are set
|
|
*/
|
|
bool (*calculate_secret) (pts_t *this);
|
|
|
|
/**
|
|
* Get primary key of platform entry in database
|
|
*
|
|
* @return Platform and OS info
|
|
*/
|
|
int (*get_platform_id)(pts_t *this);
|
|
|
|
/**
|
|
* Set primary key of platform entry in database
|
|
*
|
|
* @param pid Primary key of platform entry in database
|
|
*/
|
|
void (*set_platform_id)(pts_t *this, int pid);
|
|
|
|
/**
|
|
* Get TPM 1.2 Version Info
|
|
*
|
|
* @param info chunk containing a TPM_CAP_VERSION_INFO struct
|
|
* @return TRUE if TPM Version Info available
|
|
*/
|
|
bool (*get_tpm_version_info)(pts_t *this, chunk_t *info);
|
|
|
|
/**
|
|
* Set TPM 1.2 Version Info
|
|
*
|
|
* @param info chunk containing a TPM_CAP_VERSION_INFO struct
|
|
*/
|
|
void (*set_tpm_version_info)(pts_t *this, chunk_t info);
|
|
|
|
/**
|
|
* Get Attestation Identity Certificate or Public Key
|
|
*
|
|
* @return AIK Certificate or Public Key
|
|
*/
|
|
certificate_t* (*get_aik)(pts_t *this);
|
|
|
|
/**
|
|
* Set Attestation Identity Certificate or Public Key
|
|
*
|
|
* @param aik AIK Certificate or Public Key
|
|
* @param aik_id Primary key referencing AIK in database
|
|
*/
|
|
void (*set_aik)(pts_t *this, certificate_t *aik, int aik_id);
|
|
|
|
/**
|
|
* Get primary key referencing AIK in database
|
|
*
|
|
* @return Primary key referencing AIK in database
|
|
*/
|
|
int (*get_aik_id)(pts_t *this);
|
|
|
|
/**
|
|
* Check whether path is valid file/directory on filesystem
|
|
*
|
|
* @param path Absolute path
|
|
* @param error_code Output variable for PTS error code
|
|
* @return TRUE if path is valid or file/directory
|
|
* doesn't exist or path is invalid
|
|
* FALSE if local error occurred within stat function
|
|
*/
|
|
bool (*is_path_valid)(pts_t *this, char *path, pts_error_code_t *error_code);
|
|
|
|
/**
|
|
* Obtain file metadata
|
|
*
|
|
* @param pathname Absolute pathname of file/directory
|
|
* @param is_dir TRUE if directory contents are requested
|
|
* @return PTS File Metadata or NULL if FAILED
|
|
*/
|
|
pts_file_meta_t* (*get_metadata)(pts_t *this, char *pathname, bool is_dir);
|
|
|
|
/**
|
|
* Retrieve the current value of a PCR register in a given PCR bank
|
|
*
|
|
* @param pcr_num PCR number
|
|
* @param pcr_value PCR value returned
|
|
* @param alg hash algorithm, selects PCR bank (TPM 2.0 only)
|
|
* @return TRUE if PCR value retrieval succeeded
|
|
*/
|
|
bool (*read_pcr)(pts_t *this, uint32_t pcr_num, chunk_t *pcr_value,
|
|
hash_algorithm_t alg);
|
|
|
|
/**
|
|
* Extend a PCR register in a given PCR bank with a hash value
|
|
*
|
|
* @param pcr_num PCR number
|
|
* @param pcr_value extended PCR value returned
|
|
* @param hash data to be extended into the PCR
|
|
* @param alg hash algorithm, selects PCR bank (TPM 2.0 only)
|
|
* @return TRUE if PCR extension succeeded
|
|
*/
|
|
bool (*extend_pcr)(pts_t *this, uint32_t pcr_num, chunk_t *pcr_value,
|
|
chunk_t data, hash_algorithm_t alg);
|
|
|
|
/**
|
|
* Quote over PCR's
|
|
* Expects owner and SRK secret to be WELL_KNOWN_SECRET and no password set for AIK
|
|
*
|
|
* @param use_quote2 Version of the Quote function to be used
|
|
* @param use_version_info Version info is concatenated to TPM_QUOTE_INFO2
|
|
* @param pcr_comp Chunk to save PCR composite structure
|
|
* @param quote_sig Chunk to save quote operation output
|
|
* without external data (anti-replay protection)
|
|
* @return FALSE in case of TSS error, TRUE otherwise
|
|
*/
|
|
bool (*quote_tpm)(pts_t *this, bool use_quote2, bool use_version_info,
|
|
chunk_t *pcr_comp, chunk_t *quote_sig);
|
|
|
|
/**
|
|
* Get the shadow PCR set
|
|
*
|
|
* @return shadow PCR set
|
|
*/
|
|
pts_pcr_t* (*get_pcrs)(pts_t *this);
|
|
|
|
/**
|
|
* Constructs and returns TPM Quote Info structure expected from IMC
|
|
*
|
|
* @param use_quote2 Version of the TPM_QUOTE_INFO to be constructed
|
|
* @param use_version_info Version info is concatenated to TPM_QUOTE_INFO2
|
|
* @param comp_hash_algo Composite Hash Algorithm
|
|
* @param pcr_comp Output variable to store PCR Composite
|
|
* @param quote_info Output variable to store TPM Quote Info
|
|
* @return FALSE in case of any error, TRUE otherwise
|
|
*/
|
|
bool (*get_quote_info)(pts_t *this, bool use_quote2, bool use_version_info,
|
|
pts_meas_algorithms_t comp_hash_algo,
|
|
chunk_t *pcr_comp, chunk_t *quote_info);
|
|
|
|
/**
|
|
* Constructs and returns PCR Quote Digest structure expected from IMC
|
|
*
|
|
* @param data Calculated TPM Quote Digest
|
|
* @param signature TPM Quote Signature received from IMC
|
|
* @return FALSE if signature is not verified
|
|
*/
|
|
bool (*verify_quote_signature)(pts_t *this, chunk_t data, chunk_t signature);
|
|
|
|
/**
|
|
* Destroys a pts_t object.
|
|
*/
|
|
void (*destroy)(pts_t *this);
|
|
|
|
};
|
|
|
|
/**
|
|
* Creates an pts_t object
|
|
*
|
|
* @param is_imc TRUE if running on an IMC
|
|
*/
|
|
pts_t* pts_create(bool is_imc);
|
|
|
|
#endif /** PTS_H_ @}*/
|