523 lines
12 KiB
C
523 lines
12 KiB
C
/*
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* Copyright (C) 2017 Andreas Steffen
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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 "imv_swima_state.h"
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#include <imv/imv_lang_string.h>
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#include <imv/imv_reason_string.h>
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#include <imv/imv_remediation_string.h>
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#include <tncif_policy.h>
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#include <utils/debug.h>
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typedef struct private_imv_swima_state_t private_imv_swima_state_t;
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/**
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* Private data of an imv_swima_state_t object.
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*/
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struct private_imv_swima_state_t {
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/**
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* Public members of imv_swima_state_t
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*/
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imv_swima_state_t public;
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/**
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* TNCCS connection ID
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*/
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TNC_ConnectionID connection_id;
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/**
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* TNCCS connection state
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*/
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TNC_ConnectionState state;
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/**
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* Does the TNCCS connection support long message types?
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*/
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bool has_long;
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/**
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* Does the TNCCS connection support exclusive delivery?
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*/
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bool has_excl;
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/**
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* Maximum PA-TNC message size for this TNCCS connection
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*/
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uint32_t max_msg_len;
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/**
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* Flags set for completed actions
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*/
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uint32_t action_flags;
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/**
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* IMV database session associated with TNCCS connection
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*/
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imv_session_t *session;
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/**
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* PA-TNC attribute segmentation contracts associated with TNCCS connection
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*/
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seg_contract_manager_t *contracts;
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/**
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* IMV action recommendation
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*/
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TNC_IMV_Action_Recommendation rec;
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/**
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* IMV evaluation result
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*/
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TNC_IMV_Evaluation_Result eval;
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/**
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* IMV Scanner handshake state
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*/
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imv_swima_handshake_state_t handshake_state;
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/**
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* TNC Reason String
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*/
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imv_reason_string_t *reason_string;
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/**
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* IETF Remediation Instructions String
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*/
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imv_remediation_string_t *remediation_string;
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/**
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* Has a subscription been established?
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*/
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bool has_subscription;
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/**
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* SWID Tag Request ID
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*/
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uint32_t request_id;
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/**
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* Number of processed Software Identifiers
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*/
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int sw_id_count;
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/**
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* Number of processed SWID Tags
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*/
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int tag_count;
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/**
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* Number of missing Software Identifiers or SWID Tags
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*/
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uint32_t missing;
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/**
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* SWID IMC ID
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*/
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TNC_UInt32 imc_id;
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/**
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* Top level JSON object
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*/
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json_object *jobj;
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/**
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* JSON array containing either a SW [ID] inventory or SW ID events
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*/
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json_object *jarray;
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};
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METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
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private_imv_swima_state_t *this)
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{
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return this->connection_id;
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}
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METHOD(imv_state_t, has_long, bool,
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private_imv_swima_state_t *this)
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{
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return this->has_long;
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}
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METHOD(imv_state_t, has_excl, bool,
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private_imv_swima_state_t *this)
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{
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return this->has_excl;
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}
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METHOD(imv_state_t, set_flags, void,
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private_imv_swima_state_t *this, bool has_long, bool has_excl)
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{
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this->has_long = has_long;
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this->has_excl = has_excl;
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}
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METHOD(imv_state_t, set_max_msg_len, void,
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private_imv_swima_state_t *this, uint32_t max_msg_len)
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{
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this->max_msg_len = max_msg_len;
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}
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METHOD(imv_state_t, get_max_msg_len, uint32_t,
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private_imv_swima_state_t *this)
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{
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return this->max_msg_len;
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}
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METHOD(imv_state_t, set_action_flags, void,
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private_imv_swima_state_t *this, uint32_t flags)
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{
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this->action_flags |= flags;
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}
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METHOD(imv_state_t, get_action_flags, uint32_t,
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private_imv_swima_state_t *this)
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{
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return this->action_flags;
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}
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METHOD(imv_state_t, set_session, void,
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private_imv_swima_state_t *this, imv_session_t *session)
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{
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this->session = session;
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}
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METHOD(imv_state_t, get_session, imv_session_t*,
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private_imv_swima_state_t *this)
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{
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return this->session;
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}
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METHOD(imv_state_t, get_contracts, seg_contract_manager_t*,
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private_imv_swima_state_t *this)
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{
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return this->contracts;
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}
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METHOD(imv_state_t, change_state, TNC_ConnectionState,
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private_imv_swima_state_t *this, TNC_ConnectionState new_state)
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{
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TNC_ConnectionState old_state;
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old_state = this->state;
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this->state = new_state;
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return old_state;
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}
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METHOD(imv_state_t, get_recommendation, void,
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private_imv_swima_state_t *this, TNC_IMV_Action_Recommendation *rec,
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TNC_IMV_Evaluation_Result *eval)
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{
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*rec = this->rec;
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*eval = this->eval;
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}
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METHOD(imv_state_t, set_recommendation, void,
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private_imv_swima_state_t *this, TNC_IMV_Action_Recommendation rec,
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TNC_IMV_Evaluation_Result eval)
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{
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this->rec = rec;
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this->eval = eval;
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}
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METHOD(imv_state_t, update_recommendation, void,
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private_imv_swima_state_t *this, TNC_IMV_Action_Recommendation rec,
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TNC_IMV_Evaluation_Result eval)
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{
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this->rec = tncif_policy_update_recommendation(this->rec, rec);
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this->eval = tncif_policy_update_evaluation(this->eval, eval);
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}
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METHOD(imv_state_t, get_reason_string, bool,
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private_imv_swima_state_t *this, enumerator_t *language_enumerator,
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chunk_t *reason_string, char **reason_language)
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{
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return FALSE;
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}
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METHOD(imv_state_t, get_remediation_instructions, bool,
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private_imv_swima_state_t *this, enumerator_t *language_enumerator,
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chunk_t *string, char **lang_code, char **uri)
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{
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return FALSE;
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}
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METHOD(imv_state_t, reset, void,
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private_imv_swima_state_t *this)
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{
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this->rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION;
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this->eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
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this->action_flags = 0;
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this->handshake_state = IMV_SWIMA_STATE_INIT;
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this->sw_id_count = 0;
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this->tag_count = 0;
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this->missing = 0;
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json_object_put(this->jobj);
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this->jobj = json_object_new_object();
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}
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METHOD(imv_state_t, destroy, void,
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private_imv_swima_state_t *this)
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{
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json_object_put(this->jobj);
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DESTROY_IF(this->session);
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this->contracts->destroy(this->contracts);
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free(this);
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}
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METHOD(imv_swima_state_t, set_handshake_state, void,
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private_imv_swima_state_t *this, imv_swima_handshake_state_t new_state)
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{
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this->handshake_state = new_state;
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}
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METHOD(imv_swima_state_t, get_handshake_state, imv_swima_handshake_state_t,
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private_imv_swima_state_t *this)
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{
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return this->handshake_state;
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}
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METHOD(imv_swima_state_t, set_request_id, void,
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private_imv_swima_state_t *this, uint32_t request_id)
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{
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this->request_id = request_id;
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}
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METHOD(imv_swima_state_t, get_request_id, uint32_t,
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private_imv_swima_state_t *this)
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{
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return this->request_id;
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}
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METHOD(imv_swima_state_t, set_inventory, void,
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private_imv_swima_state_t *this, swima_inventory_t *inventory)
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{
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chunk_t sw_id, sw_locator;
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uint32_t record_id;
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char *sw_id_str;
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json_object *jstring;
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swima_record_t *sw_record;
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enumerator_t *enumerator;
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if (this->sw_id_count == 0)
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{
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this->jarray = json_object_new_array();
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json_object_object_add(this->jobj, "data", this->jarray);
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}
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enumerator = inventory->create_enumerator(inventory);
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while (enumerator->enumerate(enumerator, &sw_record))
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{
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record_id = sw_record->get_record_id(sw_record);
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sw_id = sw_record->get_sw_id(sw_record, &sw_locator);
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sw_id_str = strndup(sw_id.ptr, sw_id.len);
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if (sw_locator.len)
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{
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DBG3(DBG_IMV, "%6u: %s @ %.*s", record_id, sw_id_str,
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sw_locator.len, sw_locator.ptr);
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}
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else
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{
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DBG3(DBG_IMV, "%6u: %s", record_id, sw_id_str);
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}
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/* Add software identity to JSON array */
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jstring = json_object_new_string(sw_id_str);
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json_object_array_add(this->jarray, jstring);
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free(sw_id_str);
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}
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enumerator->destroy(enumerator);
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}
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METHOD(imv_swima_state_t, set_events, void,
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private_imv_swima_state_t *this, swima_events_t *events)
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{
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chunk_t sw_id, timestamp;
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uint32_t record_id, eid, last_eid, epoch, source_id, action;
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char *sw_id_str, *timestamp_str;
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json_object *jevent, *jvalue, *jstring;
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swima_event_t *sw_event;
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swima_record_t *sw_record;
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enumerator_t *enumerator;
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if (this->sw_id_count == 0)
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{
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last_eid = events->get_eid(events, &epoch, NULL);
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jvalue = json_object_new_int(epoch);
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json_object_object_add(this->jobj, "epoch", jvalue);
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jvalue = json_object_new_int(last_eid);
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json_object_object_add(this->jobj, "lastEid", jvalue);
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this->jarray = json_object_new_array();
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json_object_object_add(this->jobj, "events", this->jarray);
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}
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enumerator = events->create_enumerator(events);
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while (enumerator->enumerate(enumerator, &sw_event))
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{
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eid = sw_event->get_eid(sw_event, ×tamp);
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timestamp_str = strndup(timestamp.ptr, timestamp.len);
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action = sw_event->get_action(sw_event);
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sw_record = sw_event->get_sw_record(sw_event);
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record_id = sw_record->get_record_id(sw_record);
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source_id = sw_record->get_source_id(sw_record);
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sw_id = sw_record->get_sw_id(sw_record, NULL);
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sw_id_str = strndup(sw_id.ptr, sw_id.len);
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DBG3(DBG_IMV, "%3u %.*s %u %5u: %s", eid, timestamp.len, timestamp.ptr,
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action, record_id, sw_id_str);
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/* Add software event to JSON array */
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jevent = json_object_new_object();
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jvalue = json_object_new_int(eid);
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json_object_object_add(jevent, "eid", jvalue);
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jstring = json_object_new_string(timestamp_str);
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json_object_object_add(jevent, "timestamp", jstring);
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jvalue = json_object_new_int(record_id);
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json_object_object_add(jevent, "recordId", jvalue);
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jvalue = json_object_new_int(source_id);
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json_object_object_add(jevent, "sourceId", jvalue);
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jvalue = json_object_new_int(action);
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json_object_object_add(jevent, "action", jvalue);
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jstring = json_object_new_string(sw_id_str);
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json_object_object_add(jevent, "softwareId", jstring);
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json_object_array_add(this->jarray, jevent);
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free(timestamp_str);
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free(sw_id_str);
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}
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enumerator->destroy(enumerator);
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}
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METHOD(imv_swima_state_t, get_jrequest, json_object*,
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private_imv_swima_state_t *this)
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{
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return this->jobj;
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}
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METHOD(imv_swima_state_t, set_missing, void,
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private_imv_swima_state_t *this, uint32_t count)
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{
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this->missing = count;
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}
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METHOD(imv_swima_state_t, get_missing, uint32_t,
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private_imv_swima_state_t *this)
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{
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return this->missing;
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}
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METHOD(imv_swima_state_t, set_count, void,
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private_imv_swima_state_t *this, int sw_id_count, int tag_count,
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TNC_UInt32 imc_id)
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{
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this->sw_id_count += sw_id_count;
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this->tag_count += tag_count;
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this->imc_id = imc_id;
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}
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METHOD(imv_swima_state_t, get_count, void,
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private_imv_swima_state_t *this, int *sw_id_count, int *tag_count)
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{
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if (sw_id_count)
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{
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*sw_id_count = this->sw_id_count;
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}
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if (tag_count)
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{
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*tag_count = this->tag_count;
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}
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}
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METHOD(imv_swima_state_t, get_imc_id, TNC_UInt32,
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private_imv_swima_state_t *this)
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{
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return this->imc_id;
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}
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METHOD(imv_swima_state_t, set_subscription, void,
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private_imv_swima_state_t *this, bool set)
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{
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this->has_subscription = set;
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}
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METHOD(imv_swima_state_t, get_subscription, bool,
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private_imv_swima_state_t *this)
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{
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return this->has_subscription;
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}
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/**
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* Described in header.
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*/
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imv_state_t *imv_swima_state_create(TNC_ConnectionID connection_id)
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{
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private_imv_swima_state_t *this;
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INIT(this,
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.public = {
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.interface = {
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.get_connection_id = _get_connection_id,
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.has_long = _has_long,
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.has_excl = _has_excl,
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.set_flags = _set_flags,
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.set_max_msg_len = _set_max_msg_len,
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.get_max_msg_len = _get_max_msg_len,
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.set_action_flags = _set_action_flags,
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.get_action_flags = _get_action_flags,
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.set_session = _set_session,
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.get_session= _get_session,
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.get_contracts = _get_contracts,
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.change_state = _change_state,
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.get_recommendation = _get_recommendation,
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.set_recommendation = _set_recommendation,
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.update_recommendation = _update_recommendation,
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.get_reason_string = _get_reason_string,
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.get_remediation_instructions = _get_remediation_instructions,
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.reset = _reset,
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.destroy = _destroy,
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},
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.set_handshake_state = _set_handshake_state,
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.get_handshake_state = _get_handshake_state,
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.set_request_id = _set_request_id,
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.get_request_id = _get_request_id,
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.set_inventory = _set_inventory,
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.set_events = _set_events,
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.get_jrequest = _get_jrequest,
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.set_missing = _set_missing,
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.get_missing = _get_missing,
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.set_count = _set_count,
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.get_count = _get_count,
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.get_imc_id = _get_imc_id,
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.set_subscription = _set_subscription,
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.get_subscription = _get_subscription,
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},
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.state = TNC_CONNECTION_STATE_CREATE,
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.rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
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.eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
|
|
.connection_id = connection_id,
|
|
.contracts = seg_contract_manager_create(),
|
|
.imc_id = TNC_IMCID_ANY,
|
|
.jobj = json_object_new_object(),
|
|
);
|
|
|
|
return &this->public.interface;
|
|
}
|
|
|
|
|