tmtcpacket/SpacePacketBase.cpp

@@ -14,7 +14,8 @@ uint8_t SpacePacketBase::getPacketVersionNumber( void ) {
 	return (this->data->header.packet_id_h & 0b11100000) >> 5;
 }
 
-void SpacePacketBase::initSpacePacketHeader(bool isTelecommand, bool hasSecondaryHeader, uint16_t apid, uint16_t sequenceCount) {
+void SpacePacketBase::initSpacePacketHeader(bool isTelecommand,
+		bool hasSecondaryHeader, uint16_t apid, uint16_t sequenceCount) {
 	//reset header to zero:
 	memset(data,0, sizeof(this->data->header) );
 	//Set TC/TM bit.

tmtcpacket/pus/TcPacketBase.cpp

@@ -28,7 +28,7 @@ const uint8_t* TcPacketBase::getApplicationData() const {
 	return &tcData->data;
 }
 
-uint16_t TcPacketBase::getApplicationDataSize() {
+size_t TcPacketBase::getApplicationDataSize() {
 	return getPacketDataLength() - sizeof(tcData->data_field) - CRC_SIZE + 1;
 }
 
@@ -46,9 +46,16 @@ void TcPacketBase::setErrorControl() {
 	(&tcData->data)[size + 1] = (crc) & 0X00FF; 		// CRCL
 }
 
-void TcPacketBase::setData(const uint8_t* p_Data) {
-	SpacePacketBase::setData(p_Data);
-	tcData = (TcPacketPointer*) p_Data;
+void TcPacketBase::setData(const uint8_t* pData) {
+	SpacePacketBase::setData(pData);
+	tcData = (TcPacketPointer*) pData;
+}
+
+void TcPacketBase::setApplicationData(const uint8_t * pData, size_t dataLen) {
+	SpacePacketBase::setData(pData);
+	tcData = (TcPacketPointer*) pData;
+	SpacePacketBase::setPacketDataLength(dataLen +
+			sizeof(PUSTcDataFieldHeader) + TcPacketBase::CRC_SIZE-1);
 }
 
 uint8_t TcPacketBase::getSecondaryHeaderFlag() {
@@ -72,7 +79,7 @@ void TcPacketBase::initializeTcPacket(uint16_t apid, uint16_t sequenceCount,
 		uint8_t ack, uint8_t service, uint8_t subservice) {
 	initSpacePacketHeader(true, true, apid, sequenceCount);
 	memset(&tcData->data_field, 0, sizeof(tcData->data_field));
-	setPacketDataLength(sizeof(tcData->data_field) + CRC_SIZE);
+	setPacketDataLength(sizeof(PUSTcDataFieldHeader) + CRC_SIZE - 1);
 	//Data Field Header:
 	//Set CCSDS_secondary_header_flag to 0, version number to 001 and ack to 0000
 	tcData->data_field.version_type_ack = 0b00010000;
@@ -80,3 +87,8 @@ void TcPacketBase::initializeTcPacket(uint16_t apid, uint16_t sequenceCount,
 	tcData->data_field.service_type = service;
 	tcData->data_field.service_subtype = subservice;
 }
+
+size_t TcPacketBase::calculateFullPacketLength(size_t appDataLen) {
+	return sizeof(CCSDSPrimaryHeader) + sizeof(PUSTcDataFieldHeader) +
+			appDataLen + TcPacketBase::CRC_SIZE;
+}

tmtcpacket/pus/TcPacketBase.h

@@ -2,6 +2,7 @@
 #define TCPACKETBASE_H_
 
 #include <framework/tmtcpacket/SpacePacketBase.h>
+#include <cstddef>
 
 /**
  * This struct defines a byte-wise structured PUS TC Data Field Header.
@@ -99,7 +100,8 @@ public:
 	 * @param service	PUS Service
 	 * @param subservice PUS Subservice
 	 */
-	void initializeTcPacket(uint16_t apid, uint16_t sequenceCount, uint8_t ack, uint8_t service, uint8_t subservice);
+	void initializeTcPacket(uint16_t apid, uint16_t sequenceCount, uint8_t ack,
+			uint8_t service, uint8_t subservice);
 	/**
 	 * This command returns the CCSDS Secondary Header Flag.
 	 * It shall always be zero for PUS Packets. This is the
@@ -151,7 +153,7 @@ public:
 	 * @return	The size of the PUS Application Data (without Error Control
 	 * 		field)
 	 */
-	uint16_t getApplicationDataSize();
+	size_t getApplicationDataSize();
 	/**
 	 * This getter returns the Error Control Field of the packet.
 	 *
@@ -175,12 +177,24 @@ public:
 	 *
 	 * @param p_data	A pointer to another PUS Telecommand Packet.
 	 */
-	void setData( const uint8_t* p_data );
+	void setData( const uint8_t* pData );
+	/**
+	 * Set application data and corresponding length field.
+	 * @param pData
+	 * @param dataLen
+	 */
+	void setApplicationData(const uint8_t * pData, size_t dataLen);
 	/**
 	 * This is a debugging helper method that prints the whole packet content
 	 * to the screen.
 	 */
 	void print();
+	/**
+	 * Calculate full packet length from application data length.
+	 * @param appDataLen
+	 * @return
+	 */
+	static size_t calculateFullPacketLength(size_t appDataLen);
 };