diff options
Diffstat (limited to 'src/libimcv/plugins/imc_swid/imc_swid.c')
-rw-r--r-- | src/libimcv/plugins/imc_swid/imc_swid.c | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/src/libimcv/plugins/imc_swid/imc_swid.c b/src/libimcv/plugins/imc_swid/imc_swid.c deleted file mode 100644 index 1468a59cc..000000000 --- a/src/libimcv/plugins/imc_swid/imc_swid.c +++ /dev/null @@ -1,417 +0,0 @@ -/* - * Copyright (C) 2013-2017 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. - */ - -#include "imc_swid_state.h" - -#include <imc/imc_agent.h> -#include <imc/imc_msg.h> -#include "tcg/seg/tcg_seg_attr_max_size.h" -#include "tcg/seg/tcg_seg_attr_seg_env.h" -#include "tcg/swid/tcg_swid_attr_req.h" -#include "tcg/swid/tcg_swid_attr_tag_inv.h" -#include "tcg/swid/tcg_swid_attr_tag_id_inv.h" -#include "swid/swid_inventory.h" -#include "swid/swid_error.h" - -#include <tncif_pa_subtypes.h> - -#include <pen/pen.h> -#include <utils/debug.h> - -/* IMC definitions */ - -static const char imc_name[] = "SWID"; - -static pen_type_t msg_types[] = { - { PEN_TCG, PA_SUBTYPE_TCG_SWID } -}; - -static imc_agent_t *imc_swid; - -/** - * see section 3.8.1 of TCG TNC IF-IMC Specification 1.3 - */ -TNC_Result TNC_IMC_Initialize(TNC_IMCID imc_id, - TNC_Version min_version, - TNC_Version max_version, - TNC_Version *actual_version) -{ - if (imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name); - return TNC_RESULT_ALREADY_INITIALIZED; - } - imc_swid = imc_agent_create(imc_name, msg_types, countof(msg_types), - imc_id, actual_version); - if (!imc_swid) - { - return TNC_RESULT_FATAL; - } - if (min_version > TNC_IFIMC_VERSION_1 || max_version < TNC_IFIMC_VERSION_1) - { - DBG1(DBG_IMC, "no common IF-IMC version"); - return TNC_RESULT_NO_COMMON_VERSION; - } - return TNC_RESULT_SUCCESS; -} - -/** - * see section 3.8.2 of TCG TNC IF-IMC Specification 1.3 - */ -TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id, - TNC_ConnectionID connection_id, - TNC_ConnectionState new_state) -{ - imc_state_t *state; - - if (!imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); - return TNC_RESULT_NOT_INITIALIZED; - } - switch (new_state) - { - case TNC_CONNECTION_STATE_CREATE: - state = imc_swid_state_create(connection_id); - return imc_swid->create_state(imc_swid, state); - case TNC_CONNECTION_STATE_HANDSHAKE: - if (imc_swid->change_state(imc_swid, connection_id, new_state, - &state) != TNC_RESULT_SUCCESS) - { - return TNC_RESULT_FATAL; - } - state->set_result(state, imc_id, - TNC_IMV_EVALUATION_RESULT_DONT_KNOW); - return TNC_RESULT_SUCCESS; - case TNC_CONNECTION_STATE_DELETE: - return imc_swid->delete_state(imc_swid, connection_id); - default: - return imc_swid->change_state(imc_swid, connection_id, - new_state, NULL); - } -} - -/** - * see section 3.8.3 of TCG TNC IF-IMC Specification 1.3 - */ -TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id, - TNC_ConnectionID connection_id) -{ - imc_state_t *state; - imc_msg_t *out_msg; - pa_tnc_attr_t *attr; - seg_contract_t *contract; - seg_contract_manager_t *contracts; - size_t max_attr_size = SWID_MAX_ATTR_SIZE; - size_t max_seg_size; - char buf[BUF_LEN]; - TNC_Result result = TNC_RESULT_SUCCESS; - - if (!imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); - return TNC_RESULT_NOT_INITIALIZED; - } - if (!imc_swid->get_state(imc_swid, connection_id, &state)) - { - return TNC_RESULT_FATAL; - } - - /* Determine maximum PA-TNC attribute segment size */ - max_seg_size = state->get_max_msg_len(state) - PA_TNC_HEADER_SIZE - - PA_TNC_ATTR_HEADER_SIZE - - TCG_SEG_ATTR_SEG_ENV_HEADER; - - /* Announce support of PA-TNC segmentation to IMV */ - contract = seg_contract_create(msg_types[0], max_attr_size, max_seg_size, - TRUE, imc_id, TRUE); - contract->get_info_string(contract, buf, BUF_LEN, TRUE); - DBG2(DBG_IMC, "%s", buf); - contracts = state->get_contracts(state); - contracts->add_contract(contracts, contract); - attr = tcg_seg_attr_max_size_create(max_attr_size, max_seg_size, TRUE); - - /* send PA-TNC message with the excl flag not set */ - out_msg = imc_msg_create(imc_swid, state, connection_id, imc_id, - TNC_IMVID_ANY, msg_types[0]); - out_msg->add_attribute(out_msg, attr); - result = out_msg->send(out_msg, FALSE); - out_msg->destroy(out_msg); - - return result; -} - -/** - * Add one or multiple SWID Inventory attributes to the send queue - */ -static bool add_swid_inventory(imc_state_t *state, imc_msg_t *msg, - uint32_t request_id, bool full_tags, - swid_inventory_t *targets) -{ - pa_tnc_attr_t *attr, *attr_error; - imc_swid_state_t *swid_state; - swid_inventory_t *swid_inventory; - char *swid_directory; - uint32_t eid_epoch; - bool swid_pretty, swid_full; - enumerator_t *enumerator; - - swid_directory = lib->settings->get_str(lib->settings, - "%s.plugins.imc-swid.swid_directory", - SWID_DIRECTORY, lib->ns); - swid_pretty = lib->settings->get_bool(lib->settings, - "%s.plugins.imc-swid.swid_pretty", - FALSE, lib->ns); - swid_full = lib->settings->get_bool(lib->settings, - "%s.plugins.imc-swid.swid_full", - FALSE, lib->ns); - - swid_inventory = swid_inventory_create(full_tags); - if (!swid_inventory->collect(swid_inventory, swid_directory, targets, - swid_pretty, swid_full)) - { - swid_inventory->destroy(swid_inventory); - attr_error = swid_error_create(TCG_SWID_ERROR, request_id, - 0, "error in SWID tag collection"); - msg->add_attribute(msg, attr_error); - return FALSE; - } - DBG1(DBG_IMC, "collected %d SWID tag%s%s", - swid_inventory->get_count(swid_inventory), full_tags ? "" : " ID", - swid_inventory->get_count(swid_inventory) == 1 ? "" : "s"); - - swid_state = (imc_swid_state_t*)state; - eid_epoch = swid_state->get_eid_epoch(swid_state); - - if (full_tags) - { - tcg_swid_attr_tag_inv_t *swid_attr; - swid_tag_t *tag; - - /* Send a TCG SWID Tag Inventory attribute */ - attr = tcg_swid_attr_tag_inv_create(request_id, eid_epoch, 1); - swid_attr = (tcg_swid_attr_tag_inv_t*)attr; - - enumerator = swid_inventory->create_enumerator(swid_inventory); - while (enumerator->enumerate(enumerator, &tag)) - { - swid_attr->add(swid_attr, tag->get_ref(tag)); - } - enumerator->destroy(enumerator); - } - else - { - tcg_swid_attr_tag_id_inv_t *swid_id_attr; - swid_tag_id_t *tag_id; - - /* Send a TCG SWID Tag ID Inventory attribute */ - attr = tcg_swid_attr_tag_id_inv_create(request_id, eid_epoch, 1); - swid_id_attr = (tcg_swid_attr_tag_id_inv_t*)attr; - - enumerator = swid_inventory->create_enumerator(swid_inventory); - while (enumerator->enumerate(enumerator, &tag_id)) - { - swid_id_attr->add(swid_id_attr, tag_id->get_ref(tag_id)); - } - enumerator->destroy(enumerator); - } - - msg->add_attribute(msg, attr); - swid_inventory->destroy(swid_inventory); - - return TRUE; -} - -static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg) -{ - imc_msg_t *out_msg; - pa_tnc_attr_t *attr; - enumerator_t *enumerator; - pen_type_t type; - TNC_Result result; - bool fatal_error = FALSE; - - /* generate an outgoing PA-TNC message - we might need it */ - out_msg = imc_msg_create_as_reply(in_msg); - - /* parse received PA-TNC message and handle local and remote errors */ - result = in_msg->receive(in_msg, out_msg, &fatal_error); - if (result != TNC_RESULT_SUCCESS) - { - out_msg->destroy(out_msg); - return result; - } - - /* analyze PA-TNC attributes */ - enumerator = in_msg->create_attribute_enumerator(in_msg); - while (enumerator->enumerate(enumerator, &attr)) - { - tcg_swid_attr_req_t *attr_req; - uint8_t flags; - uint32_t request_id; - bool full_tags; - swid_inventory_t *targets; - - type = attr->get_type(attr); - - if (type.vendor_id != PEN_TCG || type.type != TCG_SWID_REQUEST) - { - continue; - } - - attr_req = (tcg_swid_attr_req_t*)attr; - flags = attr_req->get_flags(attr_req); - request_id = attr_req->get_request_id(attr_req); - targets = attr_req->get_targets(attr_req); - - if (flags & (TCG_SWID_ATTR_REQ_FLAG_S | TCG_SWID_ATTR_REQ_FLAG_C)) - { - attr = swid_error_create(TCG_SWID_SUBSCRIPTION_DENIED, request_id, - 0, "no subscription available yet"); - out_msg->add_attribute(out_msg, attr); - break; - } - full_tags = (flags & TCG_SWID_ATTR_REQ_FLAG_R) == 0; - - if (!add_swid_inventory(state, out_msg, request_id, full_tags, targets)) - { - break; - } - } - enumerator->destroy(enumerator); - - if (fatal_error) - { - result = TNC_RESULT_FATAL; - } - else - { - /* send PA-TNC message with the EXCL flag set */ - result = out_msg->send(out_msg, TRUE); - } - out_msg->destroy(out_msg); - - return result; -} - -/** - * see section 3.8.4 of TCG TNC IF-IMC Specification 1.3 - - */ -TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id, - TNC_ConnectionID connection_id, - TNC_BufferReference msg, - TNC_UInt32 msg_len, - TNC_MessageType msg_type) -{ - imc_state_t *state; - imc_msg_t *in_msg; - TNC_Result result; - - if (!imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); - return TNC_RESULT_NOT_INITIALIZED; - } - if (!imc_swid->get_state(imc_swid, connection_id, &state)) - { - return TNC_RESULT_FATAL; - } - in_msg = imc_msg_create_from_data(imc_swid, state, connection_id, msg_type, - chunk_create(msg, msg_len)); - result = receive_message(state, in_msg); - in_msg->destroy(in_msg); - - return result; -} - -/** - * see section 3.8.6 of TCG TNC IF-IMV Specification 1.3 - */ -TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id, - TNC_ConnectionID connection_id, - TNC_UInt32 msg_flags, - TNC_BufferReference msg, - TNC_UInt32 msg_len, - TNC_VendorID msg_vid, - TNC_MessageSubtype msg_subtype, - TNC_UInt32 src_imv_id, - TNC_UInt32 dst_imc_id) -{ - imc_state_t *state; - imc_msg_t *in_msg; - TNC_Result result; - - if (!imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); - return TNC_RESULT_NOT_INITIALIZED; - } - if (!imc_swid->get_state(imc_swid, connection_id, &state)) - { - return TNC_RESULT_FATAL; - } - in_msg = imc_msg_create_from_long_data(imc_swid, state, connection_id, - src_imv_id, dst_imc_id,msg_vid, msg_subtype, - chunk_create(msg, msg_len)); - result =receive_message(state, in_msg); - in_msg->destroy(in_msg); - - return result; -} - -/** - * see section 3.8.7 of TCG TNC IF-IMC Specification 1.3 - */ -TNC_Result TNC_IMC_BatchEnding(TNC_IMCID imc_id, - TNC_ConnectionID connection_id) -{ - if (!imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); - return TNC_RESULT_NOT_INITIALIZED; - } - return TNC_RESULT_SUCCESS; -} - -/** - * see section 3.8.8 of TCG TNC IF-IMC Specification 1.3 - */ -TNC_Result TNC_IMC_Terminate(TNC_IMCID imc_id) -{ - if (!imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); - return TNC_RESULT_NOT_INITIALIZED; - } - imc_swid->destroy(imc_swid); - imc_swid = NULL; - - return TNC_RESULT_SUCCESS; -} - -/** - * see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.3 - */ -TNC_Result TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id, - TNC_TNCC_BindFunctionPointer bind_function) -{ - if (!imc_swid) - { - DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); - return TNC_RESULT_NOT_INITIALIZED; - } - return imc_swid->bind_functions(imc_swid, bind_function); -} |