fsfw/src/fsfw/cfdp/pdu/MetadataPduReader.cpp

68 lines
2.2 KiB
C++

#include "MetadataPduReader.h"
MetadataPduReader::MetadataPduReader(const uint8_t* pduBuf, size_t maxSize,
MetadataGenericInfo& info, cfdp::Tlv* optionsArray,
size_t optArrayMaxSize)
: FileDirectiveReader(pduBuf, maxSize),
info(info),
optionArray(optionsArray),
optionArrayMaxSize(optArrayMaxSize) {}
ReturnValue_t MetadataPduReader::parseData() {
parsedOptions = 0;
ReturnValue_t result = FileDirectiveReader::parseData();
if (result != returnvalue::OK) {
return result;
}
size_t currentIdx = FileDirectiveReader::getHeaderSize();
const uint8_t* buf = pointers.rawPtr + currentIdx;
size_t remSize = FileDirectiveReader::getWholePduSize() - currentIdx;
if (remSize < 1) {
return SerializeIF::STREAM_TOO_SHORT;
}
info.setClosureRequested((*buf >> 6) & 0x01);
info.setChecksumType(static_cast<cfdp::ChecksumType>(*buf & 0x0f));
remSize -= 1;
buf += 1;
auto endianness = getEndianness();
result = info.getMutFileSize().deSerialize(&buf, &remSize, endianness);
if (result != returnvalue::OK) {
return result;
}
result = srcFileName.deSerialize(&buf, &remSize, endianness);
if (result != returnvalue::OK) {
return result;
}
result = destFileName.deSerialize(&buf, &remSize, endianness);
if (result != returnvalue::OK) {
return result;
}
if (remSize > 0) {
if (optionArrayMaxSize == 0 or optionArray == nullptr) {
return cfdp::METADATA_CANT_PARSE_OPTIONS;
}
size_t optsIdx = 0;
while (remSize > 0) {
if (optsIdx > optionArrayMaxSize) {
return cfdp::METADATA_CANT_PARSE_OPTIONS;
}
result = optionArray[optsIdx].deSerialize(&buf, &remSize, endianness);
if (result != returnvalue::OK) {
return result;
}
optsIdx++;
}
parsedOptions = optsIdx;
}
return result;
}
size_t MetadataPduReader::getNumberOfParsedOptions() const { return parsedOptions; }
const cfdp::StringLv& MetadataPduReader::getSourceFileName() const { return srcFileName; }
const cfdp::StringLv& MetadataPduReader::getDestFileName() const { return destFileName; }
const MetadataGenericInfo& MetadataPduReader::getGenericInfo() const { return info; }