kopia lustrzana https://github.com/weetmuts/wmbusmeters
86 wiersze
3.2 KiB
C++
86 wiersze
3.2 KiB
C++
/*
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Copyright (C) 2019 Jacek Tomasiak (gpl-3.0-or-later)
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Copyright (C) 2021 Vincent Privat (gpl-3.0-or-later)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MANUFACTURER_SPECIFICITIES_H
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#define MANUFACTURER_SPECIFICITIES_H
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#include"util.h"
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#include"wmbus.h"
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using namespace std;
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// Common: add default manufacturers key if none specified and we know one for the given frame
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void addDefaultManufacturerKeyIfAny(const vector<uchar> &frame, TPLSecurityMode tpl_sec_mode, MeterKeys *meter_keys);
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uint32_t uint32FromBytes(const vector<uchar> &data, int offset, bool reverse = false);
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// Diehl: initialize support of default keys in a meter
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void initializeDiehlDefaultKeySupport(const vector<uchar> &confidentiality_key, vector<uint32_t>& keys);
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// Diehl: check method of LFSR decryption algorithm
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enum class DiehlLfsrCheckMethod {
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CHECKSUM_AND_0XEF,
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HEADER_1_BYTE
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};
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// Diehl: decode LFSR encrypted data used in Izar/PRIOS and Sharky meters
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vector<uchar> decodeDiehlLfsr(const vector<uchar> &origin, const vector<uchar> &frame, uint32_t key, DiehlLfsrCheckMethod check_method, uint32_t check_value);
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// Diehl: frame interpretation
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enum class DiehlFrameInterpretation {
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NA, // N/A: not a Diehl frame
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REAL_DATA,
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OMS,
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PRIOS,
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SAP_PRIOS,
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SAP_PRIOS_STD,
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PRIOS_SCR,
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RESERVED
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};
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const char *toString(DiehlFrameInterpretation i);
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// Diehl: address transformation method
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enum class DiehlAddressTransformMethod {
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NONE, // "A field" coded as per standard
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SWAPPING, // "A field" coded as version/type/serialnumber instead of standard serialnumber/version/type
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SAP_PRIOS, // Version and type not included in telegram. Must be hardcoded to 0 and 7
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SAP_PRIOS_STANDARD // ?
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};
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const char *toString(DiehlAddressTransformMethod m);
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// Diehl: Determines how to interpret frame
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DiehlFrameInterpretation detectDiehlFrameInterpretation(const vector<uchar>& frame);
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// Diehl: Is "A field" coded differently from standard?
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DiehlAddressTransformMethod mustTransformDiehlAddress(const vector<uchar>& frame);
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// Diehl: transform "A field" to make it compliant to standard
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void transformDiehlAddress(vector<uchar>& frame, DiehlAddressTransformMethod method);
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// Diehl: Is payload real data crypted (LFSR)?
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bool mustDecryptDiehlRealData(const vector<uchar>& frame);
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// Diehl: decrypt real data payload (LFSR)
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bool decryptDielhRealData(Telegram *t, vector<uchar> &frame, vector<uchar>::iterator &pos, const vector<uchar> &meterkey);
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void qdsExtractWalkByField(Telegram *t, Meter *driver, DVEntry &mfctEntry, int pos, int n, const string &key_s, const string &fieldName, Quantity quantity);
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#endif
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