38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
#include "AckPduDeserializer.h"
|
|
|
|
AckPduDeserializer::AckPduDeserializer(const uint8_t* pduBuf, size_t maxSize, AckInfo& info)
|
|
: FileDirectiveReader(pduBuf, maxSize), info(info) {}
|
|
|
|
ReturnValue_t AckPduDeserializer::parseData() {
|
|
ReturnValue_t result = FileDirectiveReader::parseData();
|
|
if (result != returnvalue::OK) {
|
|
return result;
|
|
}
|
|
size_t currentIdx = FileDirectiveReader::getHeaderSize();
|
|
if (currentIdx + 2 > this->maxSize) {
|
|
return SerializeIF::BUFFER_TOO_SHORT;
|
|
}
|
|
if (not checkAndSetCodes(pointers.rawPtr[currentIdx], pointers.rawPtr[currentIdx + 1])) {
|
|
return cfdp::INVALID_ACK_DIRECTIVE_FIELDS;
|
|
}
|
|
return returnvalue::OK;
|
|
}
|
|
|
|
bool AckPduDeserializer::checkAndSetCodes(uint8_t firstByte, uint8_t secondByte) {
|
|
uint8_t ackedDirective = static_cast<cfdp::FileDirectives>(firstByte >> 4);
|
|
|
|
if (ackedDirective != cfdp::FileDirectives::EOF_DIRECTIVE and
|
|
ackedDirective != cfdp::FileDirectives::FINISH) {
|
|
return false;
|
|
}
|
|
this->info.setAckedDirective(static_cast<cfdp::FileDirectives>(ackedDirective));
|
|
uint8_t directiveSubtypeCode = firstByte & 0x0f;
|
|
if (directiveSubtypeCode != 0b0000 and directiveSubtypeCode != 0b0001) {
|
|
return false;
|
|
}
|
|
this->info.setDirectiveSubtypeCode(directiveSubtypeCode);
|
|
this->info.setAckedConditionCode(static_cast<cfdp::ConditionCode>(secondByte >> 4));
|
|
this->info.setTransactionStatus(static_cast<cfdp::AckTransactionStatus>(secondByte & 0x0f));
|
|
return true;
|
|
}
|