Forward declaration to OptionIntArray. More...

#include <option_int_array.h>

Inheritance diagram for isc::dhcp::OptionIntArray< T >:

Public Member Functions
	OptionIntArray (const Option::Universe u, const uint16_t type)
	Constructor.

	OptionIntArray (const Option::Universe u, const uint16_t type, const OptionBuffer &buf)
	Constructor.

	OptionIntArray (const Option::Universe u, const uint16_t type, OptionBufferConstIter begin, OptionBufferConstIter end)
	Constructor.

void	addValue (const T value)
	Adds a new value to the array.

virtual OptionPtr	clone () const
	Copies this option and returns a pointer to the copy.

const std::vector< T > &	getValues () const
	Return collection of option values.

virtual uint16_t	len () const
	returns complete length of option

virtual void	pack (isc::util::OutputBuffer &buf, bool check=true) const
	Writes option in wire-format to buf, returns pointer to first unused byte after stored option.

void	setValues (const std::vector< T > &values)
	Set option values.

virtual std::string	toText (int indent=0) const
	Returns textual representation of the option.

virtual void	unpack (OptionBufferConstIter begin, OptionBufferConstIter end)
	Parses received buffer.

Public Member Functions inherited from isc::dhcp::Option
	Option (const Option &source)
	Copy constructor.

	Option (Universe u, uint16_t type)
	ctor, used for options constructed, usually during transmission

	Option (Universe u, uint16_t type, const OptionBuffer &data)
	Constructor, used for received options.

	Option (Universe u, uint16_t type, OptionBufferConstIter first, OptionBufferConstIter last)
	Constructor, used for received options.

virtual	~Option ()
	just to force that every option has virtual dtor

void	addOption (OptionPtr opt)
	Adds a sub-option.

virtual OptionPtr	clone () const
	Copies this option and returns a pointer to the copy.

bool	delOption (uint16_t type)
	Attempts to delete first suboption of requested type.

virtual bool	equals (const Option &other) const
	Checks if two options are equal.

bool	equals (const OptionPtr &other) const
	Checks if options are equal.

virtual const OptionBuffer &	getData () const
	Returns pointer to actual data.

std::string	getEncapsulatedSpace () const
	Returns the name of the option space encapsulated by this option.

virtual uint16_t	getHeaderLen () const
	Returns length of header (2 for v4, 4 for v6)

OptionCollection &	getMutableOptions ()
	Returns all encapsulated options.

OptionPtr	getOption (uint16_t type) const
	Returns shared_ptr to suboption of specific type.

const OptionCollection &	getOptions () const
	Returns all encapsulated options.

void	getOptionsCopy (OptionCollection &options_copy) const
	Performs deep copy of suboptions.

uint16_t	getType () const
	Returns option type (0-255 for DHCPv4, 0-65535 for DHCPv6)

uint16_t	getUint16 () const
	Returns content of first word.

uint32_t	getUint32 () const
	Returns content of first double word.

uint8_t	getUint8 () const
	Returns content of first byte.

Universe	getUniverse () const
	returns option universe (V4 or V6)

virtual uint16_t	len () const
	Returns length of the complete option (data length + DHCPv4/DHCPv6 option header)

Option &	operator= (const Option &rhs)
	Assignment operator.

virtual void	pack (isc::util::OutputBuffer &buf, bool check=true) const
	Writes option in wire-format to a buffer.

template<typename InputIterator >
void	setData (InputIterator first, InputIterator last)
	Sets content of this option from buffer.

void	setEncapsulatedSpace (const std::string &encapsulated_space)
	Sets the name of the option space encapsulated by this option.

void	setUint16 (uint16_t value)
	Sets content of this option to a single uint16 value.

void	setUint32 (uint32_t value)
	Sets content of this option to a single uint32 value.

void	setUint8 (uint8_t value)
	Sets content of this option to a single uint8 value.

virtual std::vector< uint8_t >	toBinary (const bool include_header=false) const
	Returns binary representation of the option.

virtual std::string	toHexString (const bool include_header=false) const
	Returns string containing hexadecimal representation of option.

virtual std::string	toString () const
	Returns string representation of the value.

virtual std::string	toText (int indent=0) const
	Returns string representation of the option.

virtual void	unpack (OptionBufferConstIter begin, OptionBufferConstIter end)
	Parses received buffer.

virtual bool	valid () const
	returns if option is valid (e.g.

Additional Inherited Members
Public Types inherited from isc::dhcp::Option
typedef OptionPtr	Factory(Option::Universe u, uint16_t type, const OptionBuffer &buf)
	a factory function prototype

enum	Universe { V4 , V6 }
	defines option universe DHCPv4 or DHCPv6 More...

Static Public Member Functions inherited from isc::dhcp::Option
static OptionPtr	create (Universe u, uint16_t type)
	Factory function creating an instance of the `Option`.

static OptionPtr	create (Universe u, uint16_t type, const OptionBuffer &data)
	Factory function creating an instance of the `Option`.

static OptionPtr	factory (Option::Universe u, uint16_t type)
	Factory function to create instance of option.

static OptionPtr	factory (Option::Universe u, uint16_t type, const OptionBuffer &buf)
	Factory function to create instance of option.

Static Public Attributes inherited from isc::dhcp::Option
static bool	lenient_parsing_
	Governs whether options should be parsed less strictly.

static const size_t	OPTION4_HDR_LEN = 2
	length of the usual DHCPv4 option header (there are exceptions)

static const size_t	OPTION6_HDR_LEN = 4
	length of any DHCPv6 option header

Protected Member Functions inherited from isc::dhcp::Option
void	check () const
	A protected method used for option correctness.

template<typename OptionType >
OptionPtr	cloneInternal () const
	Copies this option and returns a pointer to the copy.

std::string	headerToText (const int indent=0, const std::string &type_name="") const
	Returns option header in the textual format.

void	packHeader (isc::util::OutputBuffer &buf, bool check=true) const
	Store option's header in a buffer.

void	packOptions (isc::util::OutputBuffer &buf, bool check=true) const
	Store sub options in a buffer.

std::string	suboptionsToText (const int indent=0) const
	Returns collection of suboptions in the textual format.

void	unpackOptions (const OptionBuffer &buf)
	Builds a collection of sub options from the buffer.

Protected Attributes inherited from isc::dhcp::Option
OptionBuffer	data_
	contains content of this data

std::string	encapsulated_space_
	Name of the option space being encapsulated by this option.

OptionCollection	options_
	collection for storing suboptions

uint16_t	type_
	option type (0-255 for DHCPv4, 0-65535 for DHCPv6)

Universe	universe_
	option universe (V4 or V6)

Detailed Description

template<typename T>
class isc::dhcp::OptionIntArray< T >

Forward declaration to OptionIntArray.

This template class represents DHCP (v4 or v6) option with an array of integer values.

Forward declaration of OptionIntArray.

This forward declaration is needed to access the OptionIntArray class without having to include the option_int_array.h header file. It is required because this header includes libdhcp++.h, and including option_int_array.h would cause circular inclusion between libdhcp++.h, option_definition.h and option_int_array.h.

The type of the elements in the array can be any of the following:

uint8_t,
uint16_t,
uint32_t,
int8_t,
int16_t,
int32_t.

Warning: Since this option may convey variable number of integer values, sub-options are should not be added in this option as there is no way to distinguish them from other data. The API will allow addition of sub-options but they will be ignored during packing and unpacking option data.

Template Parameters

T	data field type (see above).

Definition at line 56 of file option_int_array.h.

Constructor & Destructor Documentation

◆ OptionIntArray() [1/3]

template<typename T >

isc::dhcp::OptionIntArray< T >::OptionIntArray	(	const Option::Universe	u,
		const uint16_t	type
	)

inline

Constructor.

Creates option with empty values vector.

Parameters

u	universe (V4 or V6).
type	option type.

Exceptions

isc::dhcp::InvalidDataType if data field type provided as template parameter is not a supported integer type.

Definition at line 73 of file option_int_array.h.

References isc_throw.

◆ OptionIntArray() [2/3]

template<typename T >

isc::dhcp::OptionIntArray< T >::OptionIntArray	(	const Option::Universe	u,
		const uint16_t	type,
		const OptionBuffer &	buf
	)

inline

Constructor.

Parameters

u	universe (V4 or V6).
type	option type.
buf	buffer with option data (must not be empty).

Exceptions

isc::OutOfRange	if provided buffer is empty or its length is not multiple of size of the data type in bytes.
isc::dhcp::InvalidDataType	if data field type provided as template parameter is not a supported integer type.

Definition at line 91 of file option_int_array.h.

References isc_throw, and isc::dhcp::OptionIntArray< T >::unpack().

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◆ OptionIntArray() [3/3]

template<typename T >

isc::dhcp::OptionIntArray< T >::OptionIntArray	(	const Option::Universe	u,
		const uint16_t	type,
		OptionBufferConstIter	begin,
		OptionBufferConstIter	end
	)

inline

Constructor.

This constructor creates option from a buffer. This constructor may throw exception if unpack function throws during buffer parsing.

Parameters

u	universe (V4 or V6).
type	option type.
begin	iterator to first byte of option data.
end	iterator to end of option data (first byte after option end).

Exceptions

isc::OutOfRange	if provided buffer is empty or its length is not multiple of size of the data type in bytes.
isc::dhcp::InvalidDataType	if data field type provided as template parameter is not a supported integer type.

Definition at line 115 of file option_int_array.h.

References isc_throw, and isc::dhcp::OptionIntArray< T >::unpack().

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Member Function Documentation

◆ addValue()

template<typename T >

void isc::dhcp::OptionIntArray< T >::addValue ( const T value )

inline

Adds a new value to the array.

Parameters

value a value being added.

Definition at line 132 of file option_int_array.h.

◆ clone()

template<typename T >

virtual OptionPtr isc::dhcp::OptionIntArray< T >::clone ( ) const

inlinevirtual

Copies this option and returns a pointer to the copy.

Reimplemented from isc::dhcp::Option.

Definition at line 125 of file option_int_array.h.

References isc::dhcp::Option::cloneInternal().

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◆ getValues()

template<typename T >

const std::vector< T > & isc::dhcp::OptionIntArray< T >::getValues ( ) const

inline

Return collection of option values.

Returns: collection of values.

Definition at line 231 of file option_int_array.h.

◆ len()

template<typename T >

virtual uint16_t isc::dhcp::OptionIntArray< T >::len ( ) const

inlinevirtual

returns complete length of option

Returns length of this option, including option header and suboptions

Returns: length of this option

Reimplemented from isc::dhcp::Option.

Definition at line 243 of file option_int_array.h.

References isc::dhcp::Option::getUniverse(), isc::dhcp::Option::OPTION4_HDR_LEN, isc::dhcp::Option::OPTION6_HDR_LEN, isc::dhcp::Option::options_, and isc::dhcp::Option::V4.

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◆ pack()

template<typename T >

virtual void isc::dhcp::OptionIntArray< T >::pack	(	isc::util::OutputBuffer &	buf,
		bool	check = `true`
	)		const

inlinevirtual

Writes option in wire-format to buf, returns pointer to first unused byte after stored option.

Parameters

[out]	buf	buffer (option will be stored here)
	check	if set to false, allows options larger than 255 for v4

Exceptions

isc::dhcp::InvalidDataType if size of a data fields type is not equal to 1, 2 or 4 bytes. The data type is not checked in this function because it is checked in a constructor.

Reimplemented from isc::dhcp::Option.

Definition at line 145 of file option_int_array.h.

References isc::dhcp::Option::check(), isc_throw, isc::dhcp::Option::packHeader(), isc::util::OutputBuffer::writeUint16(), isc::util::OutputBuffer::writeUint32(), and isc::util::OutputBuffer::writeUint8().

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◆ setValues()

template<typename T >

void isc::dhcp::OptionIntArray< T >::setValues ( const std::vector< T > & values )

inline

Set option values.

Parameters

values collection of values to be set for option.

Definition at line 236 of file option_int_array.h.

◆ toText()

template<typename T >

virtual std::string isc::dhcp::OptionIntArray< T >::toText ( int indent = 0 ) const

inlinevirtual

Returns textual representation of the option.

Parameters

indent Number of space characters to be inserted before the text.

Returns: textual representation of the option.

Reimplemented from isc::dhcp::Option.

Definition at line 259 of file option_int_array.h.

References isc::dhcp::OptionDataTypeUtil::getDataTypeName(), and isc::dhcp::Option::headerToText().

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◆ unpack()

template<typename T >

virtual void isc::dhcp::OptionIntArray< T >::unpack	(	OptionBufferConstIter	begin,
		OptionBufferConstIter	end
	)

inlinevirtual

Parses received buffer.

Parses received buffer and returns offset to the first unused byte after parsed option.

Parameters

begin	iterator to first byte of option data
end	iterator to end of option data (first byte after option end)

Exceptions

isc::dhcp::InvalidDataType if size of a data fields type is not equal to 1, 2 or 4 bytes. The data type is not checked in this function because it is checked in a constructor.

Reimplemented from isc::dhcp::Option.

Definition at line 185 of file option_int_array.h.

References isc::dhcp::Option::getType(), isc_throw, isc::util::readUint16(), and isc::util::readUint32().

Referenced by isc::dhcp::OptionIntArray< T >::OptionIntArray().

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ OptionIntArray() [1/3]

◆ OptionIntArray() [2/3]

◆ OptionIntArray() [3/3]

Member Function Documentation

◆ addValue()

◆ clone()

◆ getValues()

◆ len()

◆ pack()

◆ setValues()

◆ toText()

◆ unpack()