ProtocolPP::jreplay< T, TE > Class Template Reference

Public Member Functions
	jreplay (std::shared_ptr< jrand > &rand, protocol_t prot, T &seqnum, TE &extseq, bool usext, uint32_t winsize)
	jreplay (std::shared_ptr< jrand > &rand, protocol_t prot, T &seqnum, TE &extseq, bool usext, uint32_t winsize, jarray< uint8_t > &window)
virtual	~jreplay ()=default
	Standard deconstructor.
uint32_t	antireplay (T &currseq, TE &currext)
uint32_t	size ()
int	next (T &currseq, TE &currext, replay_t type=NORMAL)
T	get_seqnum ()
TE	get_extseq ()
jarray< uint8_t >	get_window ()
std::string	print (bool pretty=false, int indent=10)
	jreplay (jreplay &jreplay)=delete
	jreplay (const jreplay &jreplay)=delete

Constructor & Destructor Documentation

jreplay() [1/2]

template<typename T , typename TE >

jreplay::jreplay	(	std::shared_ptr< jrand > &	rand,
		protocol_t	prot,
		T &	seqnum,
		TE &	extseq,
		bool	usext,
		uint32_t	winsize
	)

Constructor for replay

Parameters

rand	- randomizer
prot	- protocol for anti-replay
seqnum	- sequence number to verify
extseq	- extended sequence number to verify
usext	- flag to indicate use of extended sequence number
winsize	- number of packets to track in the window

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jreplay() [2/2]

template<typename T , typename TE >

jreplay::jreplay	(	std::shared_ptr< jrand > &	rand,
		protocol_t	prot,
		T &	seqnum,
		TE &	extseq,
		bool	usext,
		uint32_t	winsize,
		jarray< uint8_t > &	window
	)

Constructor for replay

Parameters

rand	- randomizer
prot	- protocol for anti-replay
seqnum	- sequence number to verify
extseq	- extended sequence number to verify
usext	- flag to indicate use of extended sequence number
winsize	- number of packets to track in the window
window	- initial replay window to start with populated with UNIT8_T values where one bit equals a packet e.g., 0xF0 would mean four packets have been received

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Member Function Documentation

antireplay()

template<typename T , typename TE >

uint32_t jreplay::antireplay	(	T &	currseq,
		TE &	currext
	)

anti-replay function, uses an BYTE array to support any size window instead of being limited to 32, 64, or 128 packets

Parameters

currseq	- received sequence number to verify
currext	- received extended sequence number to verify

Returns

value indicating type of error

0 - no error

1 - late error

2 - replay error

3 - rollover error (overflow)

4 - rollunder error (underflow)

5 - programming error

get_extseq()

template<typename T , typename TE >

TE jreplay::get_extseq

Return the current extended sequence number

Returns

size of the window

get_seqnum()

template<typename T , typename TE >

T jreplay::get_seqnum

Return current sequence number

Returns

size of the window

get_window()

template<typename T , typename TE >

jarray< uint8_t > jreplay::get_window

Return the current anti-replay window

Returns

the window

next()

template<typename T , typename TE >

int jreplay::next	(	T &	currseq,
		TE &	currext,
		replay_t	type = NORMAL
	)

Return value to add to seqnum for next value for debug purposes If the user would like to create a LATE packet, this function may be called with the current sequence number and the type=LATE and this function will return the value the should be added to the sequence number to create the desired packet

Parameters

type	- Type of seqnum/extseqnum to retrieve (NORMAL, WINDOW, REPLAY, LATE, OVERFLOW, UNDERFLOW)
currseq	- Current seqnum
currext	- Current extended seqnum

Returns

amount to add (or subtract) to the current seqnum for the type requested

print()

template<typename T , typename TE >

std::string jreplay::print	(	bool	pretty = false,
		int	indent = 10
	)

Return string representation of replay window

Parameters

pretty	- adds formatting to the replay window to make it more readable as follows
indent	- causes each line of the pretty print window to be indented the number of spaces requested

Returns

string representation of replay window array

Screen Capture of Anti-Replay Pretty-Print

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size()

template<typename T , typename TE >

uint32_t jreplay::size

Return the size of the anti-replay window

Returns

size of the window

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The documentation for this class was generated from the following file:

• include/jreplay.h