BER General Decoder. More...

#include <asn.h>

Inheritance diagram for BERGeneralDecoder:

Public Types
enum	{ DefaultTag = SEQUENCE \| static_cast<int>( CONSTRUCTED ) }
	Default ASN.1 tag. More...

Public Member Functions
	BERGeneralDecoder (BufferedTransformation &inQueue)
	Construct an ASN.1 decoder. More...

	BERGeneralDecoder (BufferedTransformation &inQueue, byte asnTag)
	Construct an ASN.1 decoder. More...

	BERGeneralDecoder (BERGeneralDecoder &inQueue, byte asnTag)
	Construct an ASN.1 decoder. More...

bool	IsDefiniteLength () const
	Determine length encoding. More...

lword	RemainingLength () const
	Determine remaining length. More...

bool	EndReached () const
	Determine end of stream. More...

byte	PeekByte () const
	Determine next octet. More...

void	CheckByte (byte b)
	Determine next octet. More...

size_t	TransferTo2 (BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
	Transfer bytes to another BufferedTransformation. More...

size_t	CopyRangeTo2 (BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const
	Copy bytes to another BufferedTransformation. More...

void	MessageEnd ()
	Signals the end of messages to the object. More...

Public Member Functions inherited from Store
	Store ()
	Construct a Store. More...

void	IsolatedInitialize (const NameValuePairs &parameters)
	Initialize or reinitialize this object, without signal propagation. More...

unsigned int	NumberOfMessages () const
	Provides the number of meesages processed by this object. More...

bool	GetNextMessage ()
	Start retrieving the next message. More...

unsigned int	CopyMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) const

Public Member Functions inherited from AutoSignaling< InputRejecting< BufferedTransformation > >
	AutoSignaling (int propagation=-1)
	Construct an AutoSignaling. More...

void	SetAutoSignalPropagation (int propagation)
	Set propagation of automatically generated and transferred signals. More...

int	GetAutoSignalPropagation () const
	Retrieve automatic signal propagation value. More...

Public Member Functions inherited from InputRejecting< BufferedTransformation >
size_t	Put2 (const byte *inString, size_t length, int messageEnd, bool blocking)
	Input a byte array for processing. More...

bool	IsolatedFlush (bool hardFlush, bool blocking)
	Flushes data buffered by this object, without signal propagation. More...

bool	IsolatedMessageSeriesEnd (bool blocking)
	Marks the end of a series of messages, without signal propagation. More...

size_t	ChannelPut2 (const std::string &channel, const byte *inString, size_t length, int messageEnd, bool blocking)
	Input multiple bytes for processing on a channel. More...

bool	ChannelMessageSeriesEnd (const std::string &channel, int messageEnd, bool blocking)
	Marks the end of a series of messages on a channel. More...

Public Member Functions inherited from BufferedTransformation
	BufferedTransformation ()
	Construct a BufferedTransformation. More...

BufferedTransformation &	Ref ()
	Provides a reference to this object. More...

virtual bool	Attachable ()
	Determines whether the object allows attachment. More...

virtual BufferedTransformation *	AttachedTransformation ()
	Returns the object immediately attached to this object. More...

virtual const BufferedTransformation *	AttachedTransformation () const
	Returns the object immediately attached to this object. More...

virtual void	Detach (BufferedTransformation *newAttachment=NULL)
	Delete the current attachment chain and attach a new one. More...

virtual void	Attach (BufferedTransformation *newAttachment)
	Add newAttachment to the end of attachment chain. More...

size_t	Put (byte inByte, bool blocking=true)
	Input a byte for processing. More...

size_t	Put (const byte *inString, size_t length, bool blocking=true)
	Input a byte buffer for processing. More...

size_t	PutWord16 (word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 16-bit word for processing. More...

size_t	PutWord32 (word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 32-bit word for processing. More...

size_t	PutWord64 (word64 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 64-bit word for processing. More...

virtual byte *	CreatePutSpace (size_t &size)
	Request space which can be written into by the caller. More...

virtual bool	CanModifyInput () const
	Determines whether input can be modified by the callee. More...

size_t	PutModifiable (byte *inString, size_t length, bool blocking=true)
	Input multiple bytes that may be modified by callee. More...

bool	MessageEnd (int propagation=-1, bool blocking=true)
	Signals the end of messages to the object. More...

size_t	PutMessageEnd (const byte *inString, size_t length, int propagation=-1, bool blocking=true)
	Input multiple bytes for processing and signal the end of a message. More...

virtual size_t	PutModifiable2 (byte *inString, size_t length, int messageEnd, bool blocking)
	Input multiple bytes that may be modified by callee. More...

unsigned int	GetMaxWaitObjectCount () const
	Retrieves the maximum number of waitable objects. More...

void	GetWaitObjects (WaitObjectContainer &container, CallStack const &callStack)
	Retrieves waitable objects. More...

virtual void	Initialize (const NameValuePairs &parameters=g_nullNameValuePairs, int propagation=-1)
	Initialize or reinitialize this object, with signal propagation. More...

virtual bool	Flush (bool hardFlush, int propagation=-1, bool blocking=true)
	Flush buffered input and/or output, with signal propagation. More...

virtual bool	MessageSeriesEnd (int propagation=-1, bool blocking=true)
	Marks the end of a series of messages, with signal propagation. More...

virtual lword	MaxRetrievable () const
	Provides the number of bytes ready for retrieval. More...

virtual bool	AnyRetrievable () const
	Determines whether bytes are ready for retrieval. More...

virtual size_t	Get (byte &outByte)
	Retrieve a 8-bit byte. More...

virtual size_t	Get (byte *outString, size_t getMax)
	Retrieve a block of bytes. More...

virtual size_t	Peek (byte &outByte) const
	Peek a 8-bit byte. More...

virtual size_t	Peek (byte *outString, size_t peekMax) const
	Peek a block of bytes. More...

size_t	GetWord16 (word16 &value, ByteOrder order=BIG_ENDIAN_ORDER)
	Retrieve a 16-bit word. More...

size_t	GetWord32 (word32 &value, ByteOrder order=BIG_ENDIAN_ORDER)
	Retrieve a 32-bit word. More...

size_t	GetWord64 (word64 &value, ByteOrder order=BIG_ENDIAN_ORDER)
	Retrieve a 64-bit word. More...

size_t	PeekWord16 (word16 &value, ByteOrder order=BIG_ENDIAN_ORDER) const
	Peek a 16-bit word. More...

size_t	PeekWord32 (word32 &value, ByteOrder order=BIG_ENDIAN_ORDER) const
	Peek a 32-bit word. More...

size_t	PeekWord64 (word64 &value, ByteOrder order=BIG_ENDIAN_ORDER) const
	Peek a 64-bit word. More...

lword	TransferTo (BufferedTransformation &target, lword transferMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL)
	move transferMax bytes of the buffered output to target as input More...

virtual lword	Skip (lword skipMax=LWORD_MAX)
	Discard skipMax bytes from the output buffer. More...

lword	CopyTo (BufferedTransformation &target, lword copyMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) const
	Copy bytes from this object to another BufferedTransformation. More...

lword	CopyRangeTo (BufferedTransformation &target, lword position, lword copyMax=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL) const
	Copy bytes from this object using an index to another BufferedTransformation. More...

virtual lword	TotalBytesRetrievable () const
	Provides the number of bytes ready for retrieval. More...

virtual bool	AnyMessages () const
	Determines if any messages are available for retrieval. More...

virtual unsigned int	SkipMessages (unsigned int count=UINT_MAX)
	Skip a number of meessages. More...

unsigned int	TransferMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL)
	Transfer messages from this object to another BufferedTransformation. More...

unsigned int	CopyMessagesTo (BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) const
	Copy messages from this object to another BufferedTransformation. More...

virtual void	SkipAll ()
	Skip all messages in the series.

void	TransferAllTo (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL)
	Transfer all bytes from this object to another BufferedTransformation. More...

void	CopyAllTo (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL) const
	Copy messages from this object to another BufferedTransformation. More...

virtual bool	GetNextMessageSeries ()
	Retrieve the next message in a series. More...

virtual unsigned int	NumberOfMessagesInThisSeries () const
	Provides the number of messages in a series. More...

virtual unsigned int	NumberOfMessageSeries () const
	Provides the number of messages in a series. More...

size_t	TransferMessagesTo2 (BufferedTransformation &target, unsigned int &messageCount, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
	Transfer messages from this object to another BufferedTransformation. More...

size_t	TransferAllTo2 (BufferedTransformation &target, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true)
	Transfer all bytes from this object to another BufferedTransformation. More...

size_t	ChannelPut (const std::string &channel, byte inByte, bool blocking=true)
	Input a byte for processing on a channel. More...

size_t	ChannelPut (const std::string &channel, const byte *inString, size_t length, bool blocking=true)
	Input a byte buffer for processing on a channel. More...

size_t	ChannelPutModifiable (const std::string &channel, byte *inString, size_t length, bool blocking=true)
	Input multiple bytes that may be modified by callee on a channel. More...

size_t	ChannelPutWord16 (const std::string &channel, word16 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 16-bit word for processing on a channel. More...

size_t	ChannelPutWord32 (const std::string &channel, word32 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 32-bit word for processing on a channel. More...

size_t	ChannelPutWord64 (const std::string &channel, word64 value, ByteOrder order=BIG_ENDIAN_ORDER, bool blocking=true)
	Input a 64-bit word for processing on a channel. More...

bool	ChannelMessageEnd (const std::string &channel, int propagation=-1, bool blocking=true)
	Signal the end of a message. More...

size_t	ChannelPutMessageEnd (const std::string &channel, const byte *inString, size_t length, int propagation=-1, bool blocking=true)
	Input multiple bytes for processing and signal the end of a message. More...

virtual byte *	ChannelCreatePutSpace (const std::string &channel, size_t &size)
	Request space which can be written into by the caller. More...

virtual size_t	ChannelPutModifiable2 (const std::string &channel, byte *inString, size_t length, int messageEnd, bool blocking)
	Input multiple bytes that may be modified by callee on a channel. More...

virtual bool	ChannelFlush (const std::string &channel, bool hardFlush, int propagation=-1, bool blocking=true)
	Flush buffered input and/or output on a channel. More...

virtual void	SetRetrievalChannel (const std::string &channel)
	Sets the default retrieval channel. More...

Public Member Functions inherited from Algorithm
	Algorithm (bool checkSelfTestStatus=true)
	Interface for all crypto algorithms. More...

virtual std::string	AlgorithmName () const
	Provides the name of this algorithm. More...

virtual std::string	AlgorithmProvider () const
	Retrieve the provider of this algorithm. More...

Public Member Functions inherited from Clonable
virtual Clonable *	Clone () const
	Copies this object. More...

Public Member Functions inherited from Waitable
virtual unsigned int	GetMaxWaitObjectCount () const =0
	Maximum number of wait objects that this object can return. More...

virtual void	GetWaitObjects (WaitObjectContainer &container, CallStack const &callStack)=0
	Retrieves waitable objects. More...

bool	Wait (unsigned long milliseconds, CallStack const &callStack)
	Wait on this object. More...

Detailed Description

BER General Decoder.

Definition at line 379 of file asn.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Default ASN.1 tag.

Definition at line 383 of file asn.h.

Constructor & Destructor Documentation

◆ BERGeneralDecoder() [1/3]

BERGeneralDecoder::BERGeneralDecoder ( BufferedTransformation & inQueue )

explicit

Construct an ASN.1 decoder.

Parameters

inQueue input byte queue

BERGeneralDecoder uses DefaultTag

◆ BERGeneralDecoder() [2/3]

BERGeneralDecoder::BERGeneralDecoder	(	BufferedTransformation &	inQueue,
		byte	asnTag
	)

explicit

Construct an ASN.1 decoder.

Parameters

inQueue	input byte queue
asnTag	ASN.1 tag

◆ BERGeneralDecoder() [3/3]

BERGeneralDecoder::BERGeneralDecoder	(	BERGeneralDecoder &	inQueue,
		byte	asnTag
	)

explicit

Construct an ASN.1 decoder.

Parameters

inQueue	input byte queue
asnTag	ASN.1 tag

Member Function Documentation

◆ IsDefiniteLength()

bool BERGeneralDecoder::IsDefiniteLength ( ) const

inline

Determine length encoding.

Returns: true if the ASN.1 object is definite length encoded, false otherwise

Definition at line 404 of file asn.h.

◆ RemainingLength()

lword BERGeneralDecoder::RemainingLength ( ) const

inline

Determine remaining length.

Returns: number of octets that remain to be consumed

RemainingLength() is only valid if IsDefiniteLength() returns true.

Definition at line 412 of file asn.h.

◆ EndReached()

bool BERGeneralDecoder::EndReached ( ) const

Determine end of stream.

Returns: true if all octets have been consumed, false otherwise

◆ PeekByte()

byte BERGeneralDecoder::PeekByte ( ) const

Determine next octet.

Returns: next octet in the stream

PeekByte does not consume the octet.

Exceptions

BERDecodeError if there are no octets remaining

◆ CheckByte()

void BERGeneralDecoder::CheckByte ( byte b )

Determine next octet.

CheckByte reads the next byte in the stream and verifies the octet matches b.

Exceptions

BERDecodeError if the next octet is not b

◆ TransferTo2()

size_t BERGeneralDecoder::TransferTo2	(	BufferedTransformation &	target,
		lword &	transferBytes,
		const std::string &	channel = `DEFAULT_CHANNEL`,
		bool	blocking = `true`
	)

virtual

Transfer bytes to another BufferedTransformation.

Parameters

target	the destination BufferedTransformation
transferBytes	the number of bytes to transfer
channel	the channel on which the transfer should occur
blocking	specifies whether the object should block when processing input

Returns: the number of bytes that remain in the transfer block (i.e., bytes not transferred)

TransferTo2() removes bytes and moves them to the destination. Transfer begins at the index position in the current stream, and not from an absolute position in the stream.

transferBytes is an IN and OUT parameter. When the call is made, transferBytes is the requested size of the transfer. When the call returns, transferBytes is the number of bytes that were transferred.

Implements BufferedTransformation.

◆ CopyRangeTo2()

size_t BERGeneralDecoder::CopyRangeTo2	(	BufferedTransformation &	target,
		lword &	begin,
		lword	end = `LWORD_MAX`,
		const std::string &	channel = `DEFAULT_CHANNEL`,
		bool	blocking = `true`
	)		const

virtual

Copy bytes to another BufferedTransformation.

Parameters

target	the destination BufferedTransformation
begin	the 0-based index of the first byte to copy in the stream
end	the 0-based index of the last byte to copy in the stream
channel	the channel on which the transfer should occur
blocking	specifies whether the object should block when processing input

Returns: the number of bytes that remain in the copy block (i.e., bytes not copied)

CopyRangeTo2 copies bytes to the destination. The bytes are not removed from this object. Copying begins at the index position in the current stream, and not from an absolute position in the stream.

begin is an IN and OUT parameter. When the call is made, begin is the starting position of the copy. When the call returns, begin is the position of the first byte that was not copied (which may be different than end). begin can be used for subsequent calls to CopyRangeTo2().

Implements BufferedTransformation.

◆ MessageEnd()

void BERGeneralDecoder::MessageEnd ( )

Signals the end of messages to the object.

Call this to denote end of sequence

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

asn.h

Public Types

Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ BERGeneralDecoder() [1/3]

◆ BERGeneralDecoder() [2/3]

◆ BERGeneralDecoder() [3/3]

Member Function Documentation

◆ IsDefiniteLength()

◆ RemainingLength()

◆ EndReached()

◆ PeekByte()

◆ CheckByte()

◆ TransferTo2()

◆ CopyRangeTo2()

◆ MessageEnd()