diff --git a/src/libimcv/Makefile.am b/src/libimcv/Makefile.am index c04e4f265..503b1d63d 100644 --- a/src/libimcv/Makefile.am +++ b/src/libimcv/Makefile.am @@ -28,7 +28,8 @@ libimcv_la_SOURCES = \ tcg/tcg_pts_attr_gen_attest_evid.h tcg/tcg_pts_attr_gen_attest_evid.c \ tcg/tcg_pts_attr_simple_comp_evid.h tcg/tcg_pts_attr_simple_comp_evid.c \ tcg/tcg_pts_attr_simple_evid_final.h tcg/tcg_pts_attr_simple_evid_final.c \ - tcg/tcg_pts_attr_req_file_meas.h tcg/tcg_pts_attr_req_file_meas.c + tcg/tcg_pts_attr_req_file_meas.h tcg/tcg_pts_attr_req_file_meas.c \ + tcg/tcg_pts_attr_file_meas.h tcg/tcg_pts_attr_file_meas.c # CFLAGS = -Wall -Werror diff --git a/src/libimcv/tcg/tcg_pts_attr_file_meas.c b/src/libimcv/tcg/tcg_pts_attr_file_meas.c new file mode 100644 index 000000000..c2f04a97b --- /dev/null +++ b/src/libimcv/tcg/tcg_pts_attr_file_meas.c @@ -0,0 +1,371 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * 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 . + * + * 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. + */ + +#include "tcg_pts_attr_file_meas.h" + +#include +#include +#include +#include +/* For pow function */ +#include +#include + +typedef struct private_tcg_pts_attr_file_meas_t private_tcg_pts_attr_file_meas_t; +typedef struct file_meas_entry_t file_meas_entry_t; + +/** + * File Measurement entry + */ +struct file_meas_entry_t { + chunk_t measurement; + u_int16_t file_name_len; + chunk_t file_name; +}; + +/** + * File Measurement (see section 3.19.2 of PTS Protocol: Binding to TNC IF-M Specification) + * + * 1 2 3 + * 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 + * + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Number of Files included | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Number of Files included | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Request ID | Measurement Length | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement #1 (Variable Length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Filename Length | Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement #2 (Variable Length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Filename Length | Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ........................... + */ + +#define PTS_FILE_MEAS_SIZE 12 + +/** + * Private data of an tcg_pts_attr_file_meas_t object. + */ +struct private_tcg_pts_attr_file_meas_t { + + /** + * Public members of tcg_pts_attr_file_meas_t + */ + tcg_pts_attr_file_meas_t public; + + /** + * Attribute vendor ID + */ + pen_t vendor_id; + + /** + * Attribute type + */ + u_int32_t type; + + /** + * Attribute value + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Number of files included + */ + u_int64_t number_of_files; + + /** + * Request ID + */ + u_int16_t request_id; + + /** + * Measurement Length + */ + u_int16_t meas_len; + + /** + * List of File Measurement entries + */ + linked_list_t *measurements; + +}; + +METHOD(pa_tnc_attr_t, get_vendor_id, pen_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->vendor_id; +} + +METHOD(pa_tnc_attr_t, get_type, u_int32_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_file_meas_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_file_meas_t *this) +{ + bio_writer_t *writer; + enumerator_t *enumerator; + file_meas_entry_t *entry; + + writer = bio_writer_create(PTS_FILE_MEAS_SIZE); + + /* Write the 64 bit integer as 2 parts, first 32 bit and second */ + writer->write_uint32 (writer, (this->number_of_files >> 32)); + writer->write_uint32 (writer, (this->number_of_files & (int)(pow(2,32) - 1))); + writer->write_uint16(writer, this->request_id); + writer->write_uint16(writer, this->meas_len); + + enumerator = this->measurements->create_enumerator(this->measurements); + while (enumerator->enumerate(enumerator, &entry)) + { + writer->write_data (writer, entry->measurement); + writer->write_uint16 (writer, entry->file_name_len); + writer->write_data(writer, entry->file_name); + } + enumerator->destroy(enumerator); + + this->value = chunk_clone(writer->get_buf(writer)); + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_file_meas_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int32_t number_of_files; + u_int64_t number_of_files_64; + file_meas_entry_t *entry; + + if (this->value.len < PTS_FILE_MEAS_SIZE) + { + DBG1(DBG_TNC, "insufficient data for File Measurement"); + *offset = 0; + return FAILED; + } + reader = bio_reader_create(this->value); + + reader->read_uint32(reader, &number_of_files); + number_of_files_64 = number_of_files; + this->number_of_files = (number_of_files_64 << 32); + reader->read_uint32(reader, &number_of_files); + this->number_of_files += number_of_files; + + reader->read_uint16(reader, &this->request_id); + reader->read_uint16(reader, &this->meas_len); + + while (reader->remaining(reader)) + { + entry = malloc_thing(file_meas_entry_t); + reader->read_data (reader, this->meas_len, &entry->measurement); + reader->read_uint16 (reader, &entry->file_name_len); + reader->read_data(reader, entry->file_name_len, &entry->file_name); + this->measurements->insert_last(this->measurements, entry); + } + + reader->destroy(reader); + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_file_meas_t *this) +{ + free(this->value.ptr); + this->measurements->destroy_function(this->measurements, free); + free(this); +} + +METHOD(tcg_pts_attr_file_meas_t, get_number_of_files, u_int64_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->number_of_files; +} + +METHOD(tcg_pts_attr_file_meas_t, set_number_of_files, void, + private_tcg_pts_attr_file_meas_t *this, u_int64_t number_of_files) +{ + this->number_of_files = number_of_files; +} + +METHOD(tcg_pts_attr_file_meas_t, get_request_id, u_int16_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->request_id; +} + +METHOD(tcg_pts_attr_file_meas_t, set_request_id, void, + private_tcg_pts_attr_file_meas_t *this, u_int16_t request_id) +{ + this->request_id = request_id; +} + +METHOD(tcg_pts_attr_file_meas_t, get_meas_len, u_int16_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->meas_len; +} + +METHOD(tcg_pts_attr_file_meas_t, set_meas_len, void, + private_tcg_pts_attr_file_meas_t *this, u_int16_t meas_len) +{ + this->meas_len = meas_len; +} + +METHOD(tcg_pts_attr_file_meas_t, add_file_meas, void, + private_tcg_pts_attr_file_meas_t *this, chunk_t measurement, + chunk_t file_name) +{ + file_meas_entry_t *entry; + + entry = malloc_thing(file_meas_entry_t); + entry->measurement = measurement; + entry->file_name_len = file_name.len; + entry->file_name = file_name; + this->measurements->insert_last(this->measurements, entry); +} + +/** + * Enumerate file measurement entries + */ +static bool port_filter(void *null, file_meas_entry_t **entry, chunk_t *measurement, + void *i2, u_int16_t *file_name_len, + void *i3, chunk_t *file_name) +{ + *measurement = (*entry)->measurement; + *file_name_len = (*entry)->file_name_len; + *file_name = (*entry)->file_name; + return TRUE; +} + +METHOD(tcg_pts_attr_file_meas_t, create_file_meas_enumerator, enumerator_t*, + private_tcg_pts_attr_file_meas_t *this) +{ + return enumerator_create_filter(this->measurements->create_enumerator(this->measurements), + (void*)port_filter, NULL, NULL); +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_file_meas_create( + u_int64_t number_of_files, + u_int16_t request_id, + u_int16_t meas_len) +{ + private_tcg_pts_attr_file_meas_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_vendor_id = _get_vendor_id, + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .destroy = _destroy, + }, + .get_number_of_files= _get_number_of_files, + .set_number_of_files= _set_number_of_files, + .get_request_id = _get_request_id, + .set_request_id = _set_request_id, + .get_meas_len = _get_meas_len, + .set_meas_len = _set_meas_len, + .add_file_meas = _add_file_meas, + .create_file_meas_enumerator = _create_file_meas_enumerator, + }, + .vendor_id = PEN_TCG, + .type = TCG_PTS_FILE_MEAS, + .number_of_files = number_of_files, + .request_id = request_id, + .meas_len = meas_len, + .measurements = linked_list_create(), + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_file_meas_create_from_data(chunk_t data) +{ + private_tcg_pts_attr_file_meas_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_vendor_id = _get_vendor_id, + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .destroy = _destroy, + }, + .get_number_of_files= _get_number_of_files, + .set_number_of_files= _set_number_of_files, + .get_request_id = _get_request_id, + .set_request_id = _set_request_id, + .get_meas_len = _get_meas_len, + .set_meas_len = _set_meas_len, + .add_file_meas = _add_file_meas, + .create_file_meas_enumerator = _create_file_meas_enumerator, + }, + .vendor_id = PEN_TCG, + .type = TCG_PTS_FILE_MEAS, + .value = chunk_clone(data), + .measurements = linked_list_create(), + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/tcg_pts_attr_file_meas.h b/src/libimcv/tcg/tcg_pts_attr_file_meas.h new file mode 100644 index 000000000..8b610c00d --- /dev/null +++ b/src/libimcv/tcg/tcg_pts_attr_file_meas.h @@ -0,0 +1,122 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * 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 . + * + * 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 tcg_pts_attr_file_meas tcg_pts_attr_file_meas + * @{ @ingroup tcg_pts_attr_file_meas + */ + +#ifndef TCG_PTS_ATTR_FILE_MEAS_H_ +#define TCG_PTS_ATTR_FILE_MEAS_H_ + +typedef struct tcg_pts_attr_file_meas_t tcg_pts_attr_file_meas_t; + +#include "tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS File Measurement attribute + * + */ +struct tcg_pts_attr_file_meas_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get Number of Files included + * + * @return Number of Files included + */ + u_int64_t (*get_number_of_files)(tcg_pts_attr_file_meas_t *this); + + /** + * Set Number of Files included + * + * @param num_files Number of Files included + */ + void (*set_number_of_files)(tcg_pts_attr_file_meas_t *this, + u_int64_t num_files); + + /** + * Get Request ID + * + * @return Request ID + */ + u_int16_t (*get_request_id)(tcg_pts_attr_file_meas_t *this); + + /** + * Set Request ID + * + * @param request_id Request ID + */ + void (*set_request_id)(tcg_pts_attr_file_meas_t *this, + u_int16_t request_id); + + /** + * Get Measurement Length + * + * @return Measurement Length + */ + u_int16_t (*get_meas_len)(tcg_pts_attr_file_meas_t *this); + + /** + * Set Measurement Length + * + * @param meas_len Measurement Length + */ + void (*set_meas_len)(tcg_pts_attr_file_meas_t *this, + u_int16_t meas_len); + + /** + * Add a file measurement entry + * + * @param measurement Measurement value + * @param file_name File Name + */ + void (*add_file_meas)(tcg_pts_attr_file_meas_t *this, chunk_t measurement, + chunk_t file_name); + + /** + * Enumerates over all file measurements + * Format: chunk_t *measurement, chunk_t *file_name + * + * @return enumerator + */ + enumerator_t* (*create_file_meas_enumerator)(tcg_pts_attr_file_meas_t *this); +}; + +/** + * Creates an tcg_pts_attr_file_meas_t object + * + * @param directory_flag Directory Contents Flag + * @param request_id Request ID + * @param delimiter Delimiter Character + * @param path File Path + */ +pa_tnc_attr_t* tcg_pts_attr_file_meas_create(u_int64_t number_of_files, + u_int16_t request_id, + u_int16_t meas_len); + +/** + * Creates an tcg_pts_attr_file_meas_t object from received data + * + * @param value unparsed attribute value + */ +pa_tnc_attr_t* tcg_pts_attr_file_meas_create_from_data(chunk_t value); + +#endif /** TCG_PTS_ATTR_FILE_MEAS_H_ @}*/