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91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
// Copyright 2020 Lukas Haubaum
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//
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// Licensed under the GNU Affero General Public License, Version 3;
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// https://www.gnu.org/licenses/agpl-3.0.html
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _ena_DATASTRUCTURES_H_
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#define _ena_DATASTRUCTURES_H_
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#include <stdio.h>
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#include "ena-crypto.h"
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/**
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* @brief different risk levels
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*
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* not used for now
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*/
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typedef enum
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{
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RISK_LEVEL_INVALID = 0,
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RISK_LEVEL_LOWEST,
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RISK_LEVEL_LOW,
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RISK_LEVEL_LOW_MEDIUM,
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RISK_LEVEL_MEDIUM,
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RISK_LEVEL_MEDIUM_HIGH,
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RISK_LEVEL_HIGH,
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RISK_LEVEL_VERY_HIGH,
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RISK_LEVEL_HIGHEST,
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} ena_risklevel_t;
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/**
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* @brief configuration for risk score calculation
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*
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* not used for now
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*/
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typedef struct
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{
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int minimum_risk_score;
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int attenuation_score[8];
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int attenuation_weight;
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int days_sinse_last_exposure_score[8];
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int days_sinse_last_exposure_weight;
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int duration_scores[8];
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float duration_weight;
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int transmission_risk_scores[8];
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float transmission_risk_weight;
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uint8_t duration_at_attenuation_thresholds[2];
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} __packed ena_config_t;
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/**
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* @brief structure for TEK
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*/
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typedef struct
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{
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uint8_t key_data[ENA_KEY_LENGTH]; // key data for encryption
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uint32_t enin; // ENIN marking start of validity
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uint8_t rolling_period; // period after validity start to mark key as expired
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} __packed ena_tek_t;
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/**
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* @brief sturcture for a temporary detection
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*/
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typedef struct
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{
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uint8_t rpi[ENA_KEY_LENGTH]; // received RPI of detection
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uint8_t aem[ENA_AEM_METADATA_LENGTH]; // received AEM of detection
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uint32_t timestamp_first; // timestamp of first recognition
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uint32_t timestamp_last; // timestamp of last recognition
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int rssi; // last measured RSSI
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} __packed ena_temp_detection_t;
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/**
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* @brief sturcture for a detection
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*/
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typedef struct
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{
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uint8_t rpi[ENA_KEY_LENGTH]; // received RPI of detection
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uint8_t aem[ENA_AEM_METADATA_LENGTH]; // received AEM of detection
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uint32_t timestamp; // timestamp of last recognition
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int rssi; // last measured RSSI
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} __packed ena_detection_t;
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#endif |