Represents a device with IPv4 and/or IPv6 reservations. More...

#include <host.h>

Inheritance diagram for isc::dhcp::Host:

Public Types
enum	IdentifierType { IDENT_HWADDR , IDENT_DUID , IDENT_CIRCUIT_ID , IDENT_CLIENT_ID , IDENT_FLEX }
	Type of the host identifier. More...

Public Member Functions
	Host (const std::string &identifier, const std::string &identifier_name, const SubnetID ipv4_subnet_id, const SubnetID ipv6_subnet_id, const asiolink::IOAddress &ipv4_reservation, const std::string &hostname="", const std::string &dhcp4_client_classes="", const std::string &dhcp6_client_classes="", const asiolink::IOAddress &next_server=asiolink::IOAddress::IPV4_ZERO_ADDRESS(), const std::string &server_host_name="", const std::string &boot_file_name="", const AuthKey &auth_key=AuthKey(""))
	Constructor.

	Host (const uint8_t *identifier, const size_t identifier_len, const IdentifierType &identifier_type, const SubnetID ipv4_subnet_id, const SubnetID ipv6_subnet_id, const asiolink::IOAddress &ipv4_reservation, const std::string &hostname="", const std::string &dhcp4_client_classes="", const std::string &dhcp6_client_classes="", const asiolink::IOAddress &next_server=asiolink::IOAddress::IPV4_ZERO_ADDRESS(), const std::string &server_host_name="", const std::string &boot_file_name="", const AuthKey &auth_key=AuthKey(""))
	Constructor.

void	addClientClass4 (const std::string &class_name)
	Adds new client class for DHCPv4.

void	addClientClass6 (const std::string &class_name)
	Adds new client class for DHCPv6.

void	addReservation (const IPv6Resrv &reservation)
	Adds new IPv6 reservation.

void	encapsulateOptions () const
	Encapsulates host-specific options with their suboptions.

const std::string &	getBootFileName () const
	Returns value of boot file name (file).

CfgOptionPtr	getCfgOption4 ()
	Returns pointer to the DHCPv4 option data configuration for this host.

ConstCfgOptionPtr	getCfgOption4 () const
	Returns const pointer to the DHCPv4 option data configuration for this host.

CfgOptionPtr	getCfgOption6 ()
	Returns pointer to the DHCPv6 option data configuration for this host.

ConstCfgOptionPtr	getCfgOption6 () const
	Returns const pointer to the DHCPv6 option data configuration for this host.

const ClientClasses &	getClientClasses4 () const
	Returns classes which DHCPv4 client is associated with.

const ClientClasses &	getClientClasses6 () const
	Returns classes which DHCPv6 client is associated with.

DuidPtr	getDuid () const
	Returns DUID for which the reservations are made.

HostID	getHostId () const
	Returns Host ID (primary key in MySQL and PostgreSQL backends)

const std::string &	getHostname () const
	Returns reserved hostname.

HWAddrPtr	getHWAddress () const
	Returns hardware address for which the reservations are made.

const std::vector< uint8_t > &	getIdentifier () const
	Returns the identifier in a binary form.

std::string	getIdentifierAsText () const
	Returns host identifier in a textual form.

IdentifierType	getIdentifierType () const
	Returns the identifier type.

const asiolink::IOAddress &	getIPv4Reservation () const
	Returns reserved IPv4 address.

SubnetID	getIPv4SubnetID () const
	Returns subnet identifier for IPv4 reservation.

IPv6ResrvRange	getIPv6Reservations () const
	Returns all IPv6 reservations.

IPv6ResrvRange	getIPv6Reservations (const IPv6Resrv::Type &type) const
	Returns IPv6 reservations of a specified type.

SubnetID	getIPv6SubnetID () const
	Returns subnet identifier for IPv6 reservations.

AuthKey	getKey () const
	Returns the key.

std::string	getLowerHostname () const
	Returns reserved hostname in lower case.

bool	getNegative () const
	Return the negative cache flag value.

const asiolink::IOAddress &	getNextServer () const
	Returns value of next server field (siaddr).

const std::string &	getServerHostname () const
	Returns value of server hostname (sname).

bool	hasIPv6Reservation () const
	Checks if there is at least one IPv6 reservation for this host.

bool	hasReservation (const IPv6Resrv &reservation) const
	Checks if specified IPv6 reservation exists for the host.

void	removeIPv4Reservation ()
	Removes the IPv4 reservation.

void	setBootFileName (const std::string &boot_file_name)
	Sets new value for boot file name (file).

void	setHostId (HostID id)
	Sets Host ID (primary key in MySQL and PostgreSQL backends)

void	setHostname (const std::string &hostname)
	Sets new hostname.

void	setIdentifier (const std::string &identifier, const std::string &name)
	Replaces currently used identifier with a new identifier.

void	setIdentifier (const uint8_t *identifier, const size_t len, const IdentifierType &type)
	Replaces currently used identifier with a new identifier.

void	setIPv4Reservation (const asiolink::IOAddress &address)
	Sets new IPv4 reservation.

void	setIPv4SubnetID (const SubnetID ipv4_subnet_id)
	Sets new IPv4 subnet identifier.

void	setIPv6SubnetID (const SubnetID ipv6_subnet_id)
	Sets new IPv6 subnet identifier.

void	setKey (const AuthKey &key)
	sets key.

void	setNegative (bool negative)
	Sets the negative cached flag.

void	setNextServer (const asiolink::IOAddress &next_server)
	Sets new value for next server field (siaddr).

void	setServerHostname (const std::string &server_host_name)
	Sets new value for server hostname (sname).

isc::data::ElementPtr	toElement4 () const
	Unparses (converts to Element representation) IPv4 host.

isc::data::ElementPtr	toElement6 () const
	Unparses (converts to Element representation) IPv6 host.

std::string	toText () const
	Returns information about the host in the textual format.

Public Member Functions inherited from isc::data::UserContext
void	contextToElement (data::ElementPtr map) const
	Merge unparse a user_context object.

data::ConstElementPtr	getContext () const
	Returns const pointer to the user context.

void	setContext (const data::ConstElementPtr &ctx)
	Sets user context.

Static Public Member Functions
static std::string	getIdentifierAsText (const IdentifierType &type, const uint8_t *value, const size_t length)
	Returns host identifier in textual form.

static size_t	getIdentifierMaxLength (const IdentifierType &type)
	Get maximum identifier length.

static std::string	getIdentifierName (const IdentifierType &type)
	Returns name of the identifier of a specified type.

static IdentifierType	getIdentifierType (const std::string &identifier_name)
	Converts identifier name to identifier type.

Static Public Member Functions inherited from isc::data::UserContext
static data::ElementPtr	toElement (data::ConstElementPtr map)
	Copy an Element map.

Static Public Attributes
static const IdentifierType	LAST_IDENTIFIER_TYPE = IDENT_FLEX
	Constant pointing to the last identifier of the IdentifierType enumeration.

Protected Member Functions
void	setIdentifierType (const IdentifierType &type)
	Set the identifier type.

Additional Inherited Members
Protected Attributes inherited from isc::data::UserContext
data::ConstElementPtr	user_context_
	Pointer to the user context (may be NULL)

Detailed Description

Represents a device with IPv4 and/or IPv6 reservations.

This class represents a network device which can be identified by a unique property, such as MAC address on the interface or client identifier (DUID), and for which some resources are statically assigned:

IPv4 address which the device obtains when it contacts a DHCPv4 server
IPv6 address(es) which the device obtains when it contacts a DHCPv6 server
IPv6 prefix(es) obtained when the device contacts the DHCPv6 server and requests allocation of prefixes using prefix delegation mechanism
hostname which is used for dynamic DNS updates for both DHCPv4 and DHCPv6 exchanges.
client classes which the client is associated with
DHCP options specifically configured for the device

Note, that "host" in this context has a different meaning from host construed as device attached to a network with (possibly) multiple interfaces. For the MAC address based reservations, each interface on a network device maps to a single Host object as each Host object contains at most one MAC address. So, it is possible that a single device is associated with multiple distinct Host objects if the device has multiple interfaces. Under normal circumstances, a non-mobile dual stack device using one interface should be represented by a single Host object.

A DHCPv6 DUID is common for all interfaces on a device. Therefore, for DUID based reservations a Host object may represent a network device with multiple interfaces. However, since Host objects are grouped by subnets to which device's interfaces are connected a single instance of Host object usually defines reservations for a single interface.

The Host object combines reservations for both IPv4 and IPv6 resources to allow for correlation of the information about the dual stack devices using DHCPv4 and DHCPv6 respectively. For example: both the DHCPv4 and DHCPv6 servers may use the same database for storing host reservations, so the information about the DHCPv4 reservations are available for the DHCPv6 server and vice versa. Also, this approach allows for reserving common resources such as host name for DHCPv4 and DHCPv6 clients.

This class also holds pointers to specific DHCP options reserved for a host. Options instances are held in CfgOption objects. There are two CfgOption objects in this class, one holding DHCPv4 options, another one holding DHCPv6 options.

Todo:

This class offers basic functionality for storing host information. It will need to be extended to allow for the following operations:

remove and replace IPv6 reservations
remove and replace client classes
disable IPv4 reservation without a need to set it to the 0.0.0.0 address Note that the last three operations are mainly required for managing host reservations which will be implemented later.

Definition at line 297 of file host.h.

Member Enumeration Documentation

◆ IdentifierType

enum isc::dhcp::Host::IdentifierType

Type of the host identifier.

Currently supported identifiers are:

hardware address (DHCPv4 and DHCPv6) (identifier name: "hw-address"),
DUID (DHCPv4 and DHCPv6) (identifier name: "duid"),
circuit identifier (DHCPv4) (identifier name: "circuit-id"),
client identifier (DHCPv4) (identifier name: "client-id")

Enumerator
IDENT_HWADDR
IDENT_DUID
IDENT_CIRCUIT_ID
IDENT_CLIENT_ID
IDENT_FLEX	Flexible host identifier.

Definition at line 307 of file host.h.

Constructor & Destructor Documentation

◆ Host() [1/2]

isc::dhcp::Host::Host	(	const uint8_t *	identifier,
		const size_t	identifier_len,
		const IdentifierType &	identifier_type,
		const SubnetID	ipv4_subnet_id,
		const SubnetID	ipv6_subnet_id,
		const asiolink::IOAddress &	ipv4_reservation,
		const std::string &	hostname = `""`,
		const std::string &	dhcp4_client_classes = `""`,
		const std::string &	dhcp6_client_classes = `""`,
		const asiolink::IOAddress &	next_server = `asiolink::IOAddress::IPV4_ZERO_ADDRESS()`,
		const std::string &	server_host_name = `""`,
		const std::string &	boot_file_name = `""`,
		const AuthKey &	auth_key = `AuthKey("")`
	)

Constructor.

Creates a Host object using an identifier in a binary format. This is most useful in cases where the identifier is obtained from the database. The constructor will create an instance of the HWAddr or DUID object depending on the identifier type.

Parameters

identifier	Pointer to the binary value holding an identifier.
identifier_len	Length of the identifier.
identifier_type	Type of the identifier (hardware address or DUID).
ipv4_subnet_id	Identifier of the IPv4 subnet to which the host is connected.
ipv6_subnet_id	Identifier of the IPv6 subnet to which the host is connected.
ipv4_reservation	An IPv4 address reserved for the client. If this address is set to 0, there is no reservation.
hostname	Hostname to be allocated to both DHCPv4 and DHCPv6 clients. This is empty string if hostname is not allocated.
dhcp4_client_classes	A string holding DHCPv4 client class names separated by commas. The names get trimmed by this constructor.
dhcp6_client_classes	A string holding DHCPv6 client class names separated by commas. The names get trimmed by this constructor.
next_server	IPv4 address of next server (siaddr).
server_host_name	Server host name (a.k.a. sname).
boot_file_name	Boot file name (a.k.a. file).
auth_key	Authentication key.

Exceptions

BadValue if the provided values are invalid. In particular, if the identifier is invalid.

Definition at line 140 of file host.cc.

References isc::asiolink::IOAddress::isV4Zero(), setIdentifier(), setIPv4Reservation(), and setNextServer().

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◆ Host() [2/2]

isc::dhcp::Host::Host	(	const std::string &	identifier,
		const std::string &	identifier_name,
		const SubnetID	ipv4_subnet_id,
		const SubnetID	ipv6_subnet_id,
		const asiolink::IOAddress &	ipv4_reservation,
		const std::string &	hostname = `""`,
		const std::string &	dhcp4_client_classes = `""`,
		const std::string &	dhcp6_client_classes = `""`,
		const asiolink::IOAddress &	next_server = `asiolink::IOAddress::IPV4_ZERO_ADDRESS()`,
		const std::string &	server_host_name = `""`,
		const std::string &	boot_file_name = `""`,
		const AuthKey &	auth_key = `AuthKey("")`
	)

Constructor.

Creates Host object using an identifier in a textual format. This is useful in cases when the reservation is specified in the server configuration file. Identifiers can be specified in the following formats:

"yy:yy:yy:yy:yy:yy"
"yyyyyyyyyy",
"0xyyyyyyyyyy",
"'some identifier'". where y is a hexadecimal digit.

Note that it is possible to use textual representation, e.g. 'some identifier', which is converted to a vector of ASCII codes representing characters in a given string, excluding quotes. This is useful in cases when specific identifiers, e.g. circuit-id are manually assigned user friendly values.

Parameters

identifier	Identifier in the textual format. The expected formats for the hardware address and other identifiers are provided above.
identifier_name	One of the supported identifiers in the text form as described for IdentifierType.
ipv4_subnet_id	Identifier of the IPv4 subnet to which the host is connected.
ipv6_subnet_id	Identifier of the IPv6 subnet to which the host is connected.
ipv4_reservation	An IPv4 address reserved for the client. If this address is set to 0, there is no reservation.
hostname	Hostname to be allocated to both DHCPv4 and DHCPv6 clients. This is empty string if hostname is not allocated.
dhcp4_client_classes	A string holding DHCPv4 client class names separated by commas. The names get trimmed by this constructor.
dhcp6_client_classes	A string holding DHCPv6 client class names separated by commas. The names get trimmed by this constructor.
next_server	IPv4 address of next server (siaddr).
server_host_name	Server host name (a.k.a. sname).
boot_file_name	Boot file name (a.k.a. file).
auth_key	Authentication key.

Exceptions

BadValue if the provided values are invalid. In particular, if the identifier is invalid.

Definition at line 178 of file host.cc.

References isc::asiolink::IOAddress::isV4Zero(), setIdentifier(), setIPv4Reservation(), and setNextServer().

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Member Function Documentation

◆ addClientClass4()

void isc::dhcp::Host::addClientClass4 ( const std::string & class_name )

Adds new client class for DHCPv4.

Parameters

class_name Class name.

Definition at line 464 of file host.cc.

◆ addClientClass6()

void isc::dhcp::Host::addClientClass6 ( const std::string & class_name )

Adds new client class for DHCPv6.

Parameters

class_name Class name.

Definition at line 470 of file host.cc.

◆ addReservation()

void isc::dhcp::Host::addReservation ( const IPv6Resrv & reservation )

Adds new IPv6 reservation.

Parameters

reservation New IPv6 reservation to be appended.

Definition at line 421 of file host.cc.

References isc::dhcp::IPv6Resrv::getType(), hasReservation(), isc_throw, and isc::dhcp::IPv6Resrv::toText().

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◆ encapsulateOptions()

void isc::dhcp::Host::encapsulateOptions ( ) const

Encapsulates host-specific options with their suboptions.

This function must be called before the server returns host-specific DHCP options to the client.

Definition at line 637 of file host.cc.

◆ getBootFileName()

const std::string & isc::dhcp::Host::getBootFileName ( ) const

inline

Returns value of boot file name (file).

Definition at line 638 of file host.h.

Referenced by toElement4().

◆ getCfgOption4() [1/2]

CfgOptionPtr isc::dhcp::Host::getCfgOption4 ( )

inline

Returns pointer to the DHCPv4 option data configuration for this host.

Returned pointer can be used to add, remove and update options reserved for a host.

Definition at line 647 of file host.h.

Referenced by toElement4().

◆ getCfgOption4() [2/2]

ConstCfgOptionPtr isc::dhcp::Host::getCfgOption4 ( ) const

inline

Returns const pointer to the DHCPv4 option data configuration for this host.

Definition at line 653 of file host.h.

◆ getCfgOption6() [1/2]

CfgOptionPtr isc::dhcp::Host::getCfgOption6 ( )

inline

Returns pointer to the DHCPv6 option data configuration for this host.

Returned pointer can be used to add, remove and update options reserved for a host.

Definition at line 662 of file host.h.

Referenced by toElement6().

◆ getCfgOption6() [2/2]

ConstCfgOptionPtr isc::dhcp::Host::getCfgOption6 ( ) const

inline

Returns const pointer to the DHCPv6 option data configuration for this host.

Definition at line 668 of file host.h.

◆ getClientClasses4()

const ClientClasses & isc::dhcp::Host::getClientClasses4 ( ) const

inline

Returns classes which DHCPv4 client is associated with.

Definition at line 591 of file host.h.

Referenced by toElement4().

◆ getClientClasses6()

const ClientClasses & isc::dhcp::Host::getClientClasses6 ( ) const

inline

Returns classes which DHCPv6 client is associated with.

Definition at line 601 of file host.h.

Referenced by toElement6().

◆ getDuid()

DuidPtr isc::dhcp::Host::getDuid ( ) const

Returns DUID for which the reservations are made.

Returns: Pointer to the DUID structure or null if the reservation is not associated with a DUID.

Definition at line 268 of file host.cc.

References IDENT_DUID.

Referenced by toElement4(), and toElement6().

◆ getHostId()

HostID isc::dhcp::Host::getHostId ( ) const

inline

Returns Host ID (primary key in MySQL and PostgreSQL backends)

Returns: id HostId value (or 0 if not set)

Definition at line 689 of file host.h.

◆ getHostname()

const std::string & isc::dhcp::Host::getHostname ( ) const

inline

Returns reserved hostname.

Definition at line 576 of file host.h.

Referenced by toElement4(), and toElement6().

◆ getHWAddress()

HWAddrPtr isc::dhcp::Host::getHWAddress ( ) const

Returns hardware address for which the reservations are made.

Returns: Pointer to the HWAddr structure or null if the reservation is not associated with a hardware address.

Definition at line 262 of file host.cc.

References isc::dhcp::HTYPE_ETHER, and IDENT_HWADDR.

Referenced by toElement4(), and toElement6().

◆ getIdentifier()

const std::vector< uint8_t > & isc::dhcp::Host::getIdentifier ( ) const

Returns the identifier in a binary form.

Returns: const reference to a vector<uint8_t> holding an identifier value.

Definition at line 231 of file host.cc.

Referenced by toElement4(), and toElement6().

◆ getIdentifierAsText() [1/2]

std::string isc::dhcp::Host::getIdentifierAsText ( ) const

Returns host identifier in a textual form.

Returns: Identifier in the form of type=value.

Definition at line 275 of file host.cc.

References getIdentifierAsText().

Referenced by isc::dhcp::CfgHosts::del4(), isc::dhcp::CfgHosts::del6(), isc::dhcp::HostMgr::get4Any(), isc::dhcp::HostMgr::get6Any(), getIdentifierAsText(), isc::dhcp::Dhcpv4Exchange::setHostIdentifiers(), isc::dhcp::Dhcpv6Srv::setHostIdentifiers(), and toText().

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◆ getIdentifierAsText() [2/2]

std::string isc::dhcp::Host::getIdentifierAsText	(	const IdentifierType &	type,
		const uint8_t *	value,
		const size_t	length
	)

static

Returns host identifier in textual form.

Parameters

type	Identifier type.
value	Pointer to a buffer holding identifier.
length	Length of the identifier.

Returns: Identifier in the form of type=value.

Definition at line 281 of file host.cc.

References isc::util::encode::encodeHex(), IDENT_CIRCUIT_ID, IDENT_CLIENT_ID, IDENT_DUID, IDENT_FLEX, and IDENT_HWADDR.

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◆ getIdentifierMaxLength()

size_t isc::dhcp::Host::getIdentifierMaxLength ( const IdentifierType & type )

static

Get maximum identifier length.

This method returns the maximum identifier length.

Parameters

type	Identifier type.

Definition at line 215 of file host.cc.

References IDENT_CLIENT_ID, IDENT_DUID, IDENT_HWADDR, isc::dhcp::ClientId::MAX_CLIENT_ID_LEN, isc::dhcp::DUID::MAX_DUID_LEN, and isc::dhcp::HWAddr::MAX_HWADDR_LEN.

Referenced by setIdentifier().

◆ getIdentifierName()

std::string isc::dhcp::Host::getIdentifierName ( const IdentifierType & type )

static

Returns name of the identifier of a specified type.

Definition at line 312 of file host.cc.

References IDENT_CIRCUIT_ID, IDENT_CLIENT_ID, IDENT_DUID, IDENT_FLEX, and IDENT_HWADDR.

Referenced by isc::dhcp::HostReservationIdsParser::parseInternal(), setIdentifier(), and isc::dhcp::CfgHostOperations::toElement().

◆ getIdentifierType() [1/2]

Host::IdentifierType isc::dhcp::Host::getIdentifierType ( ) const

Returns the identifier type.

Definition at line 236 of file host.cc.

Referenced by isc::dhcp::CfgHostOperations::addIdentifierType(), setIdentifier(), toElement4(), and toElement6().

◆ getIdentifierType() [2/2]

Host::IdentifierType isc::dhcp::Host::getIdentifierType ( const std::string & identifier_name )

static

Converts identifier name to identifier type.

Parameters

identifier_name Identifier name.

Returns: Identifier type.

Definition at line 241 of file host.cc.

References IDENT_CIRCUIT_ID, IDENT_CLIENT_ID, IDENT_DUID, IDENT_FLEX, IDENT_HWADDR, and isc_throw.

◆ getIPv4Reservation()

const asiolink::IOAddress & isc::dhcp::Host::getIPv4Reservation ( ) const

inline

Returns reserved IPv4 address.

Returns: IPv4 address or 0.0.0.0 if no IPv4 reservation specified.

Definition at line 532 of file host.h.

Referenced by toElement4().

◆ getIPv4SubnetID()

SubnetID isc::dhcp::Host::getIPv4SubnetID ( ) const

inline

Returns subnet identifier for IPv4 reservation.

Definition at line 505 of file host.h.

◆ getIPv6Reservations() [1/2]

IPv6ResrvRange isc::dhcp::Host::getIPv6Reservations ( ) const

Returns all IPv6 reservations.

Returns: A range of iterators pointing to the reservations of the specified type.

Definition at line 438 of file host.cc.

Referenced by hasReservation(), and toElement6().

◆ getIPv6Reservations() [2/2]

IPv6ResrvRange isc::dhcp::Host::getIPv6Reservations ( const IPv6Resrv::Type & type ) const

Returns IPv6 reservations of a specified type.

Parameters

type	Type of the reservations to be returned (NA or PD).

Returns: A range of iterators pointing to the reservations of the specified type.

Definition at line 433 of file host.cc.

◆ getIPv6SubnetID()

SubnetID isc::dhcp::Host::getIPv6SubnetID ( ) const

inline

Returns subnet identifier for IPv6 reservations.

Definition at line 510 of file host.h.

◆ getKey()

AuthKey isc::dhcp::Host::getKey ( ) const

inline

Returns the key.

Keys are used for signing the Reconfigure Message.

Definition at line 728 of file host.h.

◆ getLowerHostname()

std::string isc::dhcp::Host::getLowerHostname ( ) const

inline

Returns reserved hostname in lower case.

Definition at line 581 of file host.h.

◆ getNegative()

bool isc::dhcp::Host::getNegative ( ) const

inline

Return the negative cache flag value.

When true standard lookup methods return null host pointer instead.

Definition at line 704 of file host.h.

◆ getNextServer()

const asiolink::IOAddress & isc::dhcp::Host::getNextServer ( ) const

inline

Returns value of next server field (siaddr).

Definition at line 614 of file host.h.

Referenced by toElement4().

◆ getServerHostname()

const std::string & isc::dhcp::Host::getServerHostname ( ) const

inline

Returns value of server hostname (sname).

Definition at line 626 of file host.h.

Referenced by toElement4().

◆ hasIPv6Reservation()

bool isc::dhcp::Host::hasIPv6Reservation ( ) const

Checks if there is at least one IPv6 reservation for this host.

Returns: true if there is a reservation for the host, false otherwise.

Definition at line 444 of file host.cc.

◆ hasReservation()

bool isc::dhcp::Host::hasReservation ( const IPv6Resrv & reservation ) const

Checks if specified IPv6 reservation exists for the host.

Parameters

reservation A reservation to be checked for the host.

Returns: true if the reservation already exists for the host, false otherwise.

Definition at line 449 of file host.cc.

References getIPv6Reservations(), and isc::dhcp::IPv6Resrv::getType().

Referenced by addReservation().

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◆ removeIPv4Reservation()

void isc::dhcp::Host::removeIPv4Reservation ( )

Removes the IPv4 reservation.

Sets the IPv4 reserved address to 0.

Definition at line 416 of file host.cc.

References isc::asiolink::IOAddress::IPV4_ZERO_ADDRESS().

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◆ setBootFileName()

void isc::dhcp::Host::setBootFileName ( const std::string & boot_file_name )

Sets new value for boot file name (file).

Parameters

boot_file_name New value of boot file name.

Exceptions

BadValue if boot file name is longer than 128 bytes.

Definition at line 506 of file host.cc.

References isc_throw, and isc::dhcp::Pkt4::MAX_FILE_LEN.

◆ setHostId()

void isc::dhcp::Host::setHostId ( HostID id )

inline

Sets Host ID (primary key in MySQL and PostgreSQL backends)

Parameters

id	HostId value

Definition at line 683 of file host.h.

◆ setHostname()

void isc::dhcp::Host::setHostname ( const std::string & hostname )

inline

Sets new hostname.

Parameters

hostname New hostname.

Definition at line 571 of file host.h.

◆ setIdentifier() [1/2]

void isc::dhcp::Host::setIdentifier	(	const std::string &	identifier,
		const std::string &	name
	)

Replaces currently used identifier with a new identifier.

This method sets a new identifier type and value for a host. This method is called by the Host constructor.

Parameters

identifier	Reference to a new identifier in the textual format.
name	One of the supported identifiers in the text form as described for IdentifierType.

Exceptions

BadValue if the identifier is invalid.

Definition at line 352 of file host.cc.

References isc::util::str::decodeFormattedHexString(), getIdentifierMaxLength(), getIdentifierType(), isc_throw, and isc::util::str::quotedStringToBinary().

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◆ setIdentifier() [2/2]

void isc::dhcp::Host::setIdentifier	(	const uint8_t *	identifier,
		const size_t	len,
		const IdentifierType &	type
	)

Replaces currently used identifier with a new identifier.

This method sets a new identifier type and value for a host. This method is called by the Host constructor.

Parameters

identifier	Pointer to a buffer holding an identifier.
len	Length of the identifier that the `identifier` points to.
type	Identifier type.

Exceptions

BadValue if the identifier is invalid.

Definition at line 337 of file host.cc.

References getIdentifierMaxLength(), getIdentifierName(), and isc_throw.

Referenced by Host().

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◆ setIdentifierType()

void isc::dhcp::Host::setIdentifierType ( const IdentifierType & type )

protected

Set the identifier type.

Note: for test only!

Parameters

type	Identifier type.

Definition at line 399 of file host.cc.

◆ setIPv4Reservation()

void isc::dhcp::Host::setIPv4Reservation ( const asiolink::IOAddress & address )

Sets new IPv4 reservation.

The new reservation removes a previous reservation.

Parameters

address Address to be reserved for the client.

Exceptions

isc::BadValue if the provided address is not an IPv4 address, is a 0 address or broadcast address.

Definition at line 404 of file host.cc.

References isc_throw, isc::asiolink::IOAddress::isV4(), isc::asiolink::IOAddress::isV4Bcast(), and isc::asiolink::IOAddress::isV4Zero().

Referenced by Host().

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◆ setIPv4SubnetID()

void isc::dhcp::Host::setIPv4SubnetID ( const SubnetID ipv4_subnet_id )

inline

Sets new IPv4 subnet identifier.

Parameters

ipv4_subnet_id New subnet identifier.

Definition at line 493 of file host.h.

◆ setIPv6SubnetID()

void isc::dhcp::Host::setIPv6SubnetID ( const SubnetID ipv6_subnet_id )

inline

Sets new IPv6 subnet identifier.

Parameters

ipv6_subnet_id New subnet identifier.

Definition at line 500 of file host.h.

◆ setKey()

void isc::dhcp::Host::setKey ( const AuthKey & key )

inline

sets key.

Keys are used for signing the Reconfigure Message.

Definition at line 721 of file host.h.

◆ setNegative()

void isc::dhcp::Host::setNegative ( bool negative )

inline

Sets the negative cached flag.

Parameters

negative sets whether this is a negative cached host, i.e. a fake host in the cache which indicates non-existence and avoids to lookup in a slow backend.

Definition at line 698 of file host.h.

◆ setNextServer()

void isc::dhcp::Host::setNextServer ( const asiolink::IOAddress & next_server )

Sets new value for next server field (siaddr).

Parameters

next_server New address of a next server.

Exceptions

isc::BadValue if the provided address is not an IPv4 address, is broadcast address.

Definition at line 484 of file host.cc.

References isc_throw, isc::asiolink::IOAddress::isV4(), and isc::asiolink::IOAddress::isV4Bcast().

Referenced by Host().

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◆ setServerHostname()

void isc::dhcp::Host::setServerHostname ( const std::string & server_host_name )

Sets new value for server hostname (sname).

Parameters

server_host_name New value for server hostname.

Exceptions

BadValue if hostname is longer than 63 bytes.

Definition at line 497 of file host.cc.

References isc_throw, and isc::dhcp::Pkt4::MAX_SNAME_LEN.

◆ toElement4()

ElementPtr isc::dhcp::Host::toElement4 ( ) const

Unparses (converts to Element representation) IPv4 host.

Returns: Element representation of the host

Definition at line 515 of file host.cc.

References isc::data::UserContext::contextToElement(), isc::data::Element::create(), isc::data::Element::createList(), isc::data::Element::createMap(), isc::util::encode::encodeHex(), getBootFileName(), getCfgOption4(), getClientClasses4(), getDuid(), getHostname(), getHWAddress(), getIdentifier(), getIdentifierType(), getIPv4Reservation(), getNextServer(), getServerHostname(), IDENT_CIRCUIT_ID, IDENT_CLIENT_ID, IDENT_DUID, IDENT_FLEX, IDENT_HWADDR, isc_throw, isc::asiolink::IOAddress::isV4Zero(), and isc::asiolink::IOAddress::toText().

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◆ toElement6()

ElementPtr isc::dhcp::Host::toElement6 ( ) const

Unparses (converts to Element representation) IPv6 host.

Returns: Element representation of the host

Definition at line 576 of file host.cc.

References isc::data::UserContext::contextToElement(), isc::data::Element::create(), isc::data::Element::createList(), isc::data::Element::createMap(), isc::util::encode::encodeHex(), getCfgOption6(), getClientClasses6(), getDuid(), getHostname(), getHWAddress(), getIdentifier(), getIdentifierType(), getIPv6Reservations(), IDENT_CIRCUIT_ID, IDENT_CLIENT_ID, IDENT_DUID, IDENT_FLEX, IDENT_HWADDR, isc_throw, isc::dhcp::IPv6Resrv::TYPE_NA, and isc::dhcp::IPv6Resrv::TYPE_PD.

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◆ toText()

std::string isc::dhcp::Host::toText ( ) const

Returns information about the host in the textual format.

Definition at line 647 of file host.cc.

References getIdentifierAsText(), isc::asiolink::IOAddress::isV4Zero(), isc::asiolink::IOAddress::toText(), and isc::dhcp::AuthKey::toText().

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Member Data Documentation

◆ LAST_IDENTIFIER_TYPE

const IdentifierType isc::dhcp::Host::LAST_IDENTIFIER_TYPE = IDENT_FLEX

static

Constant pointing to the last identifier of the IdentifierType enumeration.

Definition at line 317 of file host.h.

Referenced by isc::dhcp::HostReservationIdsParser::parseInternal().

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

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ IdentifierType

Constructor & Destructor Documentation

◆ Host() [1/2]

◆ Host() [2/2]

Member Function Documentation

◆ addClientClass4()

◆ addClientClass6()

◆ addReservation()

◆ encapsulateOptions()

◆ getBootFileName()

◆ getCfgOption4() [1/2]

◆ getCfgOption4() [2/2]

◆ getCfgOption6() [1/2]

◆ getCfgOption6() [2/2]

◆ getClientClasses4()

◆ getClientClasses6()

◆ getDuid()

◆ getHostId()

◆ getHostname()

◆ getHWAddress()

◆ getIdentifier()

◆ getIdentifierAsText() [1/2]

◆ getIdentifierAsText() [2/2]

◆ getIdentifierMaxLength()

◆ getIdentifierName()

◆ getIdentifierType() [1/2]

◆ getIdentifierType() [2/2]

◆ getIPv4Reservation()

◆ getIPv4SubnetID()

◆ getIPv6Reservations() [1/2]

◆ getIPv6Reservations() [2/2]

◆ getIPv6SubnetID()

◆ getKey()

◆ getLowerHostname()

◆ getNegative()

◆ getNextServer()

◆ getServerHostname()

◆ hasIPv6Reservation()

◆ hasReservation()

◆ removeIPv4Reservation()

◆ setBootFileName()

◆ setHostId()

◆ setHostname()

◆ setIdentifier() [1/2]

◆ setIdentifier() [2/2]

◆ setIdentifierType()

◆ setIPv4Reservation()

◆ setIPv4SubnetID()

◆ setIPv6SubnetID()

◆ setKey()

◆ setNegative()

◆ setNextServer()

◆ setServerHostname()

◆ toElement4()

◆ toElement6()

◆ toText()

Member Data Documentation

◆ LAST_IDENTIFIER_TYPE