isc::dhcp::RelayInfoParser Class Reference

parser for additional relay information More...

#include <dhcp_parsers.h>

Inheritance diagram for isc::dhcp::RelayInfoParser:

Public Member Functions
	RelayInfoParser (const isc::dhcp::Option::Universe &family)
	constructor
void	addAddress (const std::string &name, const std::string &address_str, isc::data::ConstElementPtr relay_elem, const isc::dhcp::Network::RelayInfoPtr &relay_info)
	Attempts to add an IP address to list of relay addresses.
void	parse (const isc::dhcp::Network::RelayInfoPtr &relay_info, isc::data::ConstElementPtr relay_elem)
	parses the actual relay parameters
Public Member Functions inherited from isc::data::SimpleParser
uint16_t	getUint16 (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a value converted to uint16_t.
uint32_t	getUint32 (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a value converted to uint32_t.
uint8_t	getUint8 (ConstElementPtr scope, const std::string &name)
	Get an uint8_t value.
const isc::util::Triplet< uint32_t >	parseIntTriplet (const data::ConstElementPtr &scope, const std::string &name)
	Parses an integer triplet.

Additional Inherited Members
Static Public Member Functions inherited from isc::data::SimpleParser
static void	checkKeywords (const SimpleKeywords &keywords, isc::data::ConstElementPtr scope)
	Checks acceptable keywords with their expected type.
static void	checkRequired (const SimpleRequiredKeywords &required, isc::data::ConstElementPtr scope)
	Checks that all required keywords are present.
static size_t	deriveParams (isc::data::ConstElementPtr parent, isc::data::ElementPtr child, const ParamsList &params)
	Derives (inherits) parameters from parent scope to a child.
static isc::asiolink::IOAddress	getAddress (const ConstElementPtr &scope, const std::string &name)
	Returns a IOAddress parameter from a scope.
static bool	getBoolean (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a boolean parameter from a scope.
static double	getDouble (const ConstElementPtr &scope, const std::string &name)
	Returns a floating point parameter from a scope.
static int64_t	getInteger (isc::data::ConstElementPtr scope, const std::string &name)
	Returns an integer parameter from a scope.
static int64_t	getInteger (isc::data::ConstElementPtr scope, const std::string &name, int64_t min, int64_t max)
	Returns an integer parameter from a scope and checks its range.
static const data::Element::Position &	getPosition (const std::string &name, const data::ConstElementPtr parent)
	Utility method that returns position of an element.
static std::string	getString (isc::data::ConstElementPtr scope, const std::string &name)
	Returns a string parameter from a scope.
static size_t	setDefaults (isc::data::ElementPtr scope, const SimpleDefaults &default_values)
	Sets the default values.
static size_t	setListDefaults (isc::data::ConstElementPtr list, const SimpleDefaults &default_values)
	Sets the default values for all entries in a list.
Protected Member Functions inherited from isc::data::SimpleParser
template<typename target_type , target_type convert>
target_type	getAndConvert (isc::data::ConstElementPtr scope, const std::string &name, const std::string &type_name)
	Returns a converted value from a scope.
template<typename int_type >
int_type	getIntType (isc::data::ConstElementPtr scope, const std::string &name)
	Returns an integer value with range checking from a scope.

Detailed Description

parser for additional relay information

This concrete parser handles RelayInfo structure definitions. So far that structure holds only relay IP (v4 or v6) address, but it is expected that the number of parameters will increase over time.

It is useful for parsing Dhcp<4/6>/subnet<4/6>[x]/relay parameters.

Definition at line 449 of file dhcp_parsers.h.

Constructor & Destructor Documentation

RelayInfoParser()

isc::dhcp::RelayInfoParser::RelayInfoParser ( const isc::dhcp::Option::Universe & family )

explicit

constructor

Parameters

family

specifies protocol family (IPv4 or IPv6)

Definition at line 304 of file dhcp_parsers.cc.

Member Function Documentation

addAddress()

void isc::dhcp::RelayInfoParser::addAddress	(	const std::string &	name,
		const std::string &	address_str,
		isc::data::ConstElementPtr	relay_elem,
		const isc::dhcp::Network::RelayInfoPtr &	relay_info )

Attempts to add an IP address to list of relay addresses.

Parameters

name	name of the element supplying the address string, (either "ip-address" or "ip-addresses")
address_str	string form of the IP address to add
relay_elem	parent relay element (needed for position info)
relay_info	RelayInfo to which the address should be added

Exceptions

isc::dhcp::DhcpConfigError

if the address string is not a valid IP address, is an address of the wrong family, or is already in the relay address list

Definition at line 336 of file dhcp_parsers.cc.

References isc::data::SimpleParser::getPosition(), isc_throw, isc::dhcp::Option::V4, isc::dhcp::Option::V6, and isc::Exception::what().

Referenced by parse().

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parse()

void isc::dhcp::RelayInfoParser::parse	(	const isc::dhcp::Network::RelayInfoPtr &	relay_info,
		isc::data::ConstElementPtr	relay_elem )

parses the actual relay parameters

The elements currently supported are:

1. ip-address
2. ip-addresses

Note that ip-address and ip-addresses are mutually exclusive, with former being deprecated. The use of ip-address will cause an debug log to be emitted, reminded users to switch.

Parameters

relay_info	configuration will be stored here
relay_elem	Element tree containing the relay and its members

Exceptions

isc::dhcp::DhcpConfigError

if both or neither of ip-address and ip-addresses are specified.

Definition at line 309 of file dhcp_parsers.cc.

References addAddress(), isc::data::SimpleParser::getPosition(), isc_throw, isc::data::Element::list, and isc::data::Element::map.

Referenced by isc::dhcp::SharedNetwork4Parser::parse(), isc::dhcp::SharedNetwork6Parser::parse(), and isc::dhcp::SubnetConfigParser::parse().

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

• dhcp_parsers.h
• dhcp_parsers.cc