- add client side code to create read journals requests required for IEC 61850 logging services
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/*
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* mms_client_journals.c
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*
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* Copyright 2016 Michael Zillgith
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*
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* This file is part of libIEC61850.
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*
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* libIEC61850 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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*
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* libIEC61850 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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*
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* You should have received a copy of the GNU General Public License
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* along with libIEC61850. If not, see <http://www.gnu.org/licenses/>.
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*
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* See COPYING file for the complete license text.
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*/
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#include "libiec61850_platform_includes.h"
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#include "stack_config.h"
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#include "mms_common.h"
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#include "mms_client_connection.h"
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#include "byte_buffer.h"
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#include "mms_client_internal.h"
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#include "ber_encoder.h"
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#include "ber_decode.h"
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#include "conversions.h"
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#include "mms_value_internal.h"
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void
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mmsClient_createReadJournalRequest(uint32_t invokeId, ByteBuffer* request, const char* domainId, const char* itemId)
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{
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/* calculate sizes */
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uint32_t invokeIdSize = BerEncoder_UInt32determineEncodedSize(invokeId);
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uint32_t domainIdStringSize = strlen(domainId);
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uint32_t domainIdSize = 1 + BerEncoder_determineLengthSize(domainIdStringSize) + domainIdStringSize;
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uint32_t itemIdStringSize = strlen(itemId);
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uint32_t itemIdSize = 1 + BerEncoder_determineLengthSize(itemIdStringSize) + itemIdStringSize;
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uint32_t objectIdSize = domainIdSize + itemIdSize;
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uint32_t journalNameSize = 1 + BerEncoder_determineLengthSize(objectIdSize) + (objectIdSize);
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uint32_t journalReadSize = 1 + BerEncoder_determineLengthSize(journalNameSize) + (journalNameSize);
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uint32_t confirmedRequestPduSize = 1 + 2 + 2 + invokeIdSize + journalReadSize;
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/* encode to buffer */
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int bufPos = 0;
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uint8_t* buffer = request->buffer;
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bufPos = BerEncoder_encodeTL(0xa0, confirmedRequestPduSize, buffer, bufPos);
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bufPos = BerEncoder_encodeTL(0x02, invokeIdSize, buffer, bufPos);
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bufPos = BerEncoder_encodeUInt32(invokeId, buffer, bufPos);
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/* Encode read journal tag (context | structured ) [65 = 41h] */
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buffer[bufPos++] = 0xbf;
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buffer[bufPos++] = 0x41;
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bufPos = BerEncoder_encodeLength(journalReadSize, buffer, bufPos);
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bufPos = BerEncoder_encodeTL(0xa0, journalNameSize, buffer, bufPos);
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bufPos = BerEncoder_encodeTL(0xa1, objectIdSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) domainId, domainIdStringSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) itemId, itemIdStringSize, buffer, bufPos);
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request->size = bufPos;
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}
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void
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mmsClient_createReadJournalRequestWithTimeRange(uint32_t invokeId, ByteBuffer* request, const char* domainId, const char* itemId,
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MmsValue* startingTime, MmsValue* endingTime)
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{
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/* calculate sizes */
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uint32_t invokeIdSize = BerEncoder_UInt32determineEncodedSize(invokeId);
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uint32_t domainIdStringSize = strlen(domainId);
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uint32_t domainIdSize = 1 + BerEncoder_determineLengthSize(domainIdStringSize) + domainIdStringSize;
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uint32_t itemIdStringSize = strlen(itemId);
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uint32_t itemIdSize = 1 + BerEncoder_determineLengthSize(itemIdStringSize) + itemIdStringSize;
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uint32_t objectIdSize = domainIdSize + itemIdSize;
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uint32_t journalNameSize = 1 + BerEncoder_determineLengthSize(objectIdSize) + (objectIdSize);
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uint32_t startingTimeSize = 2 + startingTime->value.binaryTime.size;
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uint32_t rangeStartSpecSize = 2 + startingTimeSize;
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uint32_t endingTimeSize = 2 + endingTime->value.binaryTime.size;
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uint32_t rangeEndSpecSize = 2 + endingTimeSize;
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uint32_t journalReadContentSize = journalNameSize + rangeStartSpecSize + rangeEndSpecSize;
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uint32_t journalReadSize = 1 + BerEncoder_determineLengthSize(journalReadContentSize) + (journalReadContentSize);
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uint32_t confirmedRequestPduSize = 1 + 2 + 2 + invokeIdSize + journalReadSize;
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/* encode to buffer */
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int bufPos = 0;
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uint8_t* buffer = request->buffer;
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bufPos = BerEncoder_encodeTL(0xa0, confirmedRequestPduSize, buffer, bufPos);
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bufPos = BerEncoder_encodeTL(0x02, invokeIdSize, buffer, bufPos);
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bufPos = BerEncoder_encodeUInt32(invokeId, buffer, bufPos);
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/* encode read journal tag (context | structured ) [65 = 41h] */
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buffer[bufPos++] = 0xbf;
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buffer[bufPos++] = 0x41;
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bufPos = BerEncoder_encodeLength(journalReadSize, buffer, bufPos);
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/* encode journalName */
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bufPos = BerEncoder_encodeTL(0xa0, journalNameSize, buffer, bufPos);
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bufPos = BerEncoder_encodeTL(0xa1, objectIdSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) domainId, domainIdStringSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) itemId, itemIdStringSize, buffer, bufPos);
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/* encode rangeStartSpecification|startingTime */
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bufPos = BerEncoder_encodeTL(0xa1, startingTimeSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x80, startingTime->value.binaryTime.buf,
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startingTime->value.binaryTime.size, buffer, bufPos);
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/* encode rangeStopSpecification|endingTime */
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bufPos = BerEncoder_encodeTL(0xa2, endingTimeSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x80, endingTime->value.binaryTime.buf,
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endingTime->value.binaryTime.size, buffer, bufPos);
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request->size = bufPos;
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}
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void
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mmsClient_createReadJournalRequestStartAfter(uint32_t invokeId, ByteBuffer* request, const char* domainId, const char* itemId,
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MmsValue* timeSpecification, MmsValue* entrySpecification)
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{
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/* calculate sizes */
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uint32_t invokeIdSize = BerEncoder_UInt32determineEncodedSize(invokeId);
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uint32_t domainIdStringSize = strlen(domainId);
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uint32_t domainIdSize = 1 + BerEncoder_determineLengthSize(domainIdStringSize) + domainIdStringSize;
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uint32_t itemIdStringSize = strlen(itemId);
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uint32_t itemIdSize = 1 + BerEncoder_determineLengthSize(itemIdStringSize) + itemIdStringSize;
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uint32_t objectIdSize = domainIdSize + itemIdSize;
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uint32_t journalNameSize = 1 + BerEncoder_determineLengthSize(objectIdSize) + (objectIdSize);
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uint32_t timeSpecificationSize = 2 + timeSpecification->value.binaryTime.size;
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uint32_t entrySpecificationSize = 2 + entrySpecification->value.octetString.size;
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uint32_t entryToStartAfterContentSize = timeSpecificationSize + entrySpecificationSize;
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uint32_t entryToStartAfterSize = 1 + BerEncoder_determineLengthSize(entryToStartAfterContentSize)
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+ entryToStartAfterContentSize;
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uint32_t journalReadContentSize = journalNameSize + entryToStartAfterSize;
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uint32_t journalReadSize = 1 + BerEncoder_determineLengthSize(journalReadContentSize) + (journalReadContentSize);
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uint32_t confirmedRequestPduSize = 1 + 2 + 2 + invokeIdSize + journalReadSize;
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/* encode to buffer */
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int bufPos = 0;
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uint8_t* buffer = request->buffer;
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bufPos = BerEncoder_encodeTL(0xa0, confirmedRequestPduSize, buffer, bufPos);
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bufPos = BerEncoder_encodeTL(0x02, invokeIdSize, buffer, bufPos);
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bufPos = BerEncoder_encodeUInt32(invokeId, buffer, bufPos);
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/* encode read journal tag (context | structured ) [65 = 41h] */
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buffer[bufPos++] = 0xbf;
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buffer[bufPos++] = 0x41;
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bufPos = BerEncoder_encodeLength(journalReadSize, buffer, bufPos);
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/* encode journalName */
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bufPos = BerEncoder_encodeTL(0xa0, journalNameSize, buffer, bufPos);
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bufPos = BerEncoder_encodeTL(0xa1, objectIdSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) domainId, domainIdStringSize, buffer, bufPos);
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bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) itemId, itemIdStringSize, buffer, bufPos);
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/* encode entryToStartAfter */
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bufPos = BerEncoder_encodeTL(0xa5, entryToStartAfterContentSize, buffer, bufPos);
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/* encode entryToStartAfter|timeSpecification */
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bufPos = BerEncoder_encodeOctetString(0x80, timeSpecification->value.binaryTime.buf,
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timeSpecification->value.binaryTime.size, buffer, bufPos);
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/* encode entryToStartAfter|entrySpecification */
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bufPos = BerEncoder_encodeOctetString(0x81, entrySpecification->value.octetString.buf,
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entrySpecification->value.octetString.size, buffer, bufPos);
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request->size = bufPos;
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}
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