107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
#include "icsneo/disk/vsa/vsa0d.h"
|
|
|
|
#include <algorithm>
|
|
|
|
using namespace icsneo;
|
|
|
|
static constexpr auto FirstPayloadOffset = 8;
|
|
static constexpr auto FirstPayloadSize = 12;
|
|
static constexpr auto ConsecutivePayloadOffset = 4;
|
|
static constexpr auto LastPayloadSize = 24;
|
|
static constexpr auto OtherPayloadSize = 28;
|
|
|
|
// Parent class functions
|
|
|
|
VSA0D::VSA0D(uint8_t* const recordBytes, uint8_t* const messageBytes, size_t numBytes, uint32_t& runningChecksum, Network::CoreMini networkId)
|
|
: VSAExtendedMessage(messageBytes, numBytes, networkId)
|
|
{
|
|
static constexpr auto DWordSize = 4;
|
|
setType(VSA::Type::AA0D);
|
|
setIndex(*reinterpret_cast<uint16_t*>(recordBytes + 2) & 0x01FFu);
|
|
setSequenceNum((*reinterpret_cast<uint16_t*>(recordBytes + 2) & 0xFE00u) >> 9);
|
|
uint32_t* dwords = reinterpret_cast<uint32_t*>(payload.data());
|
|
for(size_t i = 0; i < payload.size() / DWordSize; i++) {
|
|
runningChecksum += dwords[i];
|
|
}
|
|
}
|
|
|
|
// First Record Functions
|
|
|
|
VSA0DFirst::VSA0DFirst(uint8_t* const recordBytes, uint32_t& runningChecksum)
|
|
: VSA0D(recordBytes, recordBytes + FirstPayloadOffset, FirstPayloadSize, runningChecksum, static_cast<Network::CoreMini>(recordBytes[29]))
|
|
{
|
|
captureBitfield = *reinterpret_cast<uint16_t*>(recordBytes + 4);
|
|
setRecordCount(*reinterpret_cast<uint16_t*>(recordBytes + 6));
|
|
timestamp = *reinterpret_cast<uint64_t*>(recordBytes + 20) & UINT63_MAX;
|
|
vNetInfo = *reinterpret_cast<VNet*>(recordBytes + 28);
|
|
checksum = *reinterpret_cast<uint16_t*>(recordBytes + 30);
|
|
doChecksum(recordBytes);
|
|
uint32_t* const timestampDWords = reinterpret_cast<uint32_t*>(timestamp);
|
|
runningChecksum += timestampDWords[0];
|
|
runningChecksum += timestampDWords[1];
|
|
}
|
|
|
|
void VSA0DFirst::doChecksum(uint8_t* recordBytes)
|
|
{
|
|
uint16_t* words = reinterpret_cast<uint16_t*>(recordBytes);
|
|
uint16_t sum = 0;
|
|
for(size_t i = 0; i < 15; i++) {
|
|
sum += words[i];
|
|
}
|
|
setChecksumFailed(sum != checksum);
|
|
}
|
|
|
|
void VSA0DFirst::reservePacketData(std::shared_ptr<Packet>& packet) const
|
|
{
|
|
uint32_t numMessageBytes = (getRecordCount() - 2) * OtherPayloadSize + FirstPayloadSize + LastPayloadSize;
|
|
packet->data.reserve(numMessageBytes);
|
|
}
|
|
|
|
void VSA0DFirst::reorderPayload(std::vector<uint8_t>& secondPayload)
|
|
{
|
|
std::vector<uint8_t> tempPayload;
|
|
tempPayload.insert(tempPayload.end(), secondPayload.begin(), secondPayload.begin() + 4);
|
|
uint8_t* timestampBytes = reinterpret_cast<uint8_t*>(×tamp);
|
|
if(timestampIsExtended) {
|
|
timestampBytes[7] += 0x80;
|
|
}
|
|
tempPayload.insert(tempPayload.end(), timestampBytes, timestampBytes + 8);
|
|
tempPayload.insert(tempPayload.end(), secondPayload.begin() + 4, secondPayload.end());
|
|
payload.clear();
|
|
secondPayload.clear();
|
|
payload.insert(payload.end(), tempPayload.begin(), tempPayload.begin() + 12); // This is done because the capacity of payload is already 12
|
|
secondPayload.insert(secondPayload.end(), tempPayload.begin() + 12, tempPayload.end());
|
|
}
|
|
|
|
bool VSA0DFirst::filter(const std::shared_ptr<VSAMessageReadFilter> filter)
|
|
{
|
|
if((filter->captureBitfield != captureBitfield && filter->captureBitfield != UINT16_MAX) ||
|
|
getICSTimestampFromTimepoint(filter->readRange.first) > timestamp ||
|
|
getICSTimestampFromTimepoint(filter->readRange.second) < timestamp) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Consecutive Record Functions
|
|
|
|
VSA0DConsecutive::VSA0DConsecutive(uint8_t* const recordBytes, uint32_t& runningChecksum, std::shared_ptr<VSA0DFirst> first, bool isLastRecord)
|
|
: VSA0D(recordBytes, recordBytes + ConsecutivePayloadOffset, isLastRecord ? LastPayloadSize : OtherPayloadSize, runningChecksum)
|
|
{
|
|
this->first = first;
|
|
calculatedChecksum = runningChecksum;
|
|
if(getIndex() == 1) {
|
|
first->reorderPayload(payload);
|
|
} else if(isLastRecord) {
|
|
recordChecksum = *reinterpret_cast<uint32_t*>(recordBytes + 28);
|
|
doChecksum(recordBytes);
|
|
} else {
|
|
setChecksumFailed(first->getChecksumFailed());
|
|
}
|
|
setRecordCount(first->getRecordCount());
|
|
}
|
|
|
|
void VSA0DConsecutive::doChecksum(uint8_t* recordBytes)
|
|
{
|
|
setChecksumFailed(recordBytes && calculatedChecksum != recordChecksum);
|
|
} |