Robin Mueller
0ac1d1c1ca
This PR adds the packet stack for the CCSDS File Delivery Protocol. It also refactors the existing TMTC infastructure to allow sending of CFDP packets to the CCSDS handlers. This includes the whole PDU (Protocol Data Unit) stack: - File Data PDUs and all file directive PDUs - ACK PDU - NAK PDU - Metadata PDU - Finished PDU - Prompt PDU - Keep Alive PDU - EOF PDU The PR includes a full set of unittests for the packet stack with a coverage of 90+ %. The refactoring of the existing TMTC infastructure includes non-ideal solutions like diamond inheritance. Avoiding this solution would require refactoring the packet stack. This would be a good idea anyway because the existing stack is tightly coupled to the FSFW, making reuse more difficult if only the stack is planned to be used without the store functionalities etc. The PDU implementation provided here is only weakly coupled to the FSFW, only using components like returnvalues or the Serialization modules. There are dedicated serializers and deserializers, which also helps in creating small focused modules which are easy to test. Some of the modules here were provied by Matthias Tompert.
54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
#ifndef FSFW_SRC_FSFW_CFDP_LV_H_
|
|
#define FSFW_SRC_FSFW_CFDP_LV_H_
|
|
|
|
#include "fsfw/serialize/SerialBufferAdapter.h"
|
|
|
|
namespace cfdp {
|
|
|
|
/**
|
|
* @brief Length-Value field implementation
|
|
* @details
|
|
* Thin abstraction layer around a serial buffer adapter
|
|
*/
|
|
class Lv: public SerializeIF {
|
|
public:
|
|
Lv(const uint8_t* value, size_t size);
|
|
Lv();
|
|
|
|
// Delete copy ctor and assingment ctor for now because this class contains a reference to
|
|
// data
|
|
Lv (const Lv&);
|
|
Lv& operator= (const Lv&);
|
|
|
|
ReturnValue_t serialize(uint8_t **buffer, size_t *size,
|
|
size_t maxSize, Endianness streamEndianness) const override;
|
|
|
|
size_t getSerializedSize() const override;
|
|
|
|
/**
|
|
* @brief Deserialize a LV field from a raw buffer
|
|
* @param buffer Raw buffer including the size field
|
|
* @param size
|
|
* @param streamEndianness
|
|
* @return
|
|
*/
|
|
ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size,
|
|
Endianness streamEndianness) override;
|
|
|
|
/**
|
|
* Get value field and its size.
|
|
* @param size Optionally retrieve size. Size will be the size of the actual value field
|
|
* without the length field of the LV
|
|
* @return
|
|
*/
|
|
const uint8_t* getValue(size_t* size) const;
|
|
private:
|
|
|
|
bool zeroLen = true;
|
|
SerialBufferAdapter<uint8_t> value;
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* FSFW_SRC_FSFW_CFDP_LV_H_ */
|