NDP server, receives router solicitations and sends advertisements. More...

#include <ndp.hpp>

Inheritance diagram for join::BasicNdpServer< Protocol >:

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Collaboration diagram for join::BasicNdpServer< Protocol >:

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Public Types
using	RouterSolicitationNotify = Function<void (const RouterSolicitation& solicitation)>
	router solicitation notification callback.

Public Member Functions
	BasicNdpServer ()=delete
	create the BasicNdpServer instance.

	BasicNdpServer (const std::string &interface, Reactor &reactor=ReactorThread::reactor())
	create the instance bound to the given interface and start receiving solicitations.

	~BasicNdpServer ()
	stop receiving solicitations and destroy the instance.

int	setRouterSolicitationListener (RouterSolicitationNotify cb) noexcept
	set the callback called on every router solicitation received.

int	unsetRouterSolicitationListener () noexcept
	unset the router solicitation callback, it is no longer called once this returns.

int	routerAdvertise (const RouterAdvertisement &advert, const IpAddress &destination=IpAddress::ipv6AllNodes) noexcept
	send a router advertisement.

int	routerAdvertise (const RouterAdvertisement &advert, const RouterSolicitation &solicitation) noexcept
	answer a router solicitation, to the solicitor or to all the nodes of the link if it has no address.

Additional Inherited Members
Protected Types inherited from join::BasicNdp< Protocol >
using	Socket = typename Protocol::Socket

using	Endpoint = typename Protocol::Endpoint

using	NeighborSolicitationNotify = Function<void (const NeighborSolicitation& solicitation)>
	neighbor solicitation notification callback.

using	NeighborAdvertisementNotify = Function<void (const NeighborAdvertisement& advert)>
	neighbor advertisement notification callback.

Protected Member Functions inherited from join::BasicNdp< Protocol >
void	attach ()
	register with the reactor, to be called by the final class once fully constructed.

void	detach () noexcept
	unregister from the reactor, to be called by the final class before destruction starts.

int	applyFilter (uint8_t type, bool pass) noexcept
	pass or block a message type in the ICMPv6 filter.

int	send (const char *data, size_t size, const IpAddress &destination)
	write a message on the interface.

ssize_t	receive (char *data, size_t maxSize, IpAddress &from)
	read a message that passed the checks common to every NDP message.

bool	onNeighborMessage (size_t size, const IpAddress &from) noexcept
	hand a received neighbor message to its listener, and an advertisement to the solicitations waiting for it.

	BasicNdp ()=delete
	create the BasicNdp instance.

	BasicNdp (const std::string &interface, uint8_t filter, const IpAddress &group, Reactor &reactor)
	create the instance bound to the given interface.

	BasicNdp (const BasicNdp &other)=delete
	create instance by copy.

BasicNdp &	operator= (const BasicNdp &other)=delete
	assign instance by copy.

	BasicNdp (BasicNdp &&other)=delete
	create instance by move.

BasicNdp &	operator= (BasicNdp &&other)=delete
	assign instance by move.

virtual	~BasicNdp ()=default
	destroy the instance.

int	neighborSolicit (const IpAddress &target, NeighborAdvertisement &advert, std::chrono::milliseconds timeout=std::chrono::seconds(1)) noexcept
	send a neighbor solicitation and wait for the advertisement of the target.

int	neighborAdvertise (const NeighborAdvertisement &advert, const IpAddress &destination=IpAddress::ipv6AllNodes) noexcept
	send a neighbor advertisement, the interface hardware address is used if it carries none.

int	neighborAdvertise (const NeighborAdvertisement &advert, const NeighborSolicitation &solicitation) noexcept
	answer a neighbor solicitation, to the solicitor or to all the nodes of the link if it has no address.

int	setNeighborSolicitationListener (NeighborSolicitationNotify cb) noexcept
	set the callback called on every neighbor solicitation received.

int	unsetNeighborSolicitationListener () noexcept
	unset the neighbor solicitation callback, it is no longer called once this returns.

int	setNeighborAdvertisementListener (NeighborAdvertisementNotify cb) noexcept
	set the callback called on every neighbor advertisement received, solicited or not.

int	unsetNeighborAdvertisementListener () noexcept
	unset the neighbor advertisement callback, it is no longer called once this returns.

const std::string &	interface () const noexcept
	get the name of the interface the instance is bound to.

unsigned int	index () const noexcept
	get the index of the interface the instance is bound to.

const MacAddress &	hardware () const noexcept
	get the hardware address of the interface the instance is bound to.

Protected Member Functions inherited from join::EventHandler
virtual void	onEvent (int fd, uint32_t revents)
	method called when events are reported on handle.

virtual void	onWriteable (int fd)
	method called when data are ready to be written on handle.

virtual void	onClose (int fd)
	method called when handle was closed by the peer.

virtual void	onError (int fd)
	method called when an error occurred on handle.

	EventHandler ()=default
	create instance.

	EventHandler (const EventHandler &other)=default
	copy constructor.

EventHandler &	operator= (const EventHandler &other)=default
	copy assignment operator.

	EventHandler (EventHandler &&other)=default
	move constructor.

EventHandler &	operator= (EventHandler &&other)=default
	move assignment operator.

virtual	~EventHandler ()=default
	destroy instance.

Static Protected Member Functions inherited from join::BasicNdp< Protocol >
static unsigned int	lookup (const std::string &interface)
	get the index of the given interface.

Protected Attributes inherited from join::BasicNdp< Protocol >
Socket	_socket
	underlying socket.

NdpMessage	_message
	NDP message codec.

std::unique_ptr< char[]>	_buffer
	receive buffer.

const std::string	_interface
	interface name.

const unsigned int	_index
	interface index.

const MacAddress	_hardware
	hardware address of the interface.

Reactor &	_reactor
	event loop reactor.

struct icmp6_filter	_filter
	ICMPv6 filter applied to the socket, only accessed from the reactor thread once constructed.

std::vector< NeighborRequest * >	_neighborPending
	neighbor solicitations waiting for an advertisement, only accessed from the reactor thread.

Mutex	_neighborMutex
	neighbor solicitations protection mutex.

NeighborSolicitationNotify	_neighborSolicitationListener
	neighbor solicitation listener, only accessed from the reactor thread.

bool	_neighborSolicitationCalling = false

NeighborAdvertisementNotify	_neighborAdvertisementListener
	neighbor advertisement listener, only accessed from the reactor thread.

bool	_neighborAdvertisementCalling = false

Detailed Description

template<class Protocol>
class join::BasicNdpServer< Protocol >

NDP server, receives router solicitations and sends advertisements.

Member Typedef Documentation

◆ RouterSolicitationNotify

template<class Protocol >

using join::BasicNdpServer< Protocol >::RouterSolicitationNotify = Function<void (const RouterSolicitation& solicitation)>

router solicitation notification callback.

Constructor & Destructor Documentation

◆ BasicNdpServer() [1/2]

template<class Protocol >

join::BasicNdpServer< Protocol >::BasicNdpServer ( )

delete

create the BasicNdpServer instance.

◆ BasicNdpServer() [2/2]

template<class Protocol >

join::BasicNdpServer< Protocol >::BasicNdpServer	(	const std::string &	interface,
		Reactor &	reactor = ReactorThread::reactor () )

inlineexplicit

create the instance bound to the given interface and start receiving solicitations.

Parameters

interface	interface name.
reactor	reactor instance.

Exceptions

std::system_error if the interface is unknown or the socket could not be set up.

◆ ~BasicNdpServer()

template<class Protocol >

join::BasicNdpServer< Protocol >::~BasicNdpServer ( )

inline

stop receiving solicitations and destroy the instance.

Member Function Documentation

◆ routerAdvertise() [1/2]

template<class Protocol >

int join::BasicNdpServer< Protocol >::routerAdvertise	(	const RouterAdvertisement &	advert,
		const IpAddress &	destination = IpAddress::ipv6AllNodes )

inlinenoexcept

send a router advertisement.

Parameters

advert	advertisement to send, the interface hardware address is used if it carries none.
destination	destination address, the solicitor or all the nodes of the link.

Returns: 0 on success, -1 on failure.

◆ routerAdvertise() [2/2]

template<class Protocol >

int join::BasicNdpServer< Protocol >::routerAdvertise	(	const RouterAdvertisement &	advert,
		const RouterSolicitation &	solicitation )

inlinenoexcept

answer a router solicitation, to the solicitor or to all the nodes of the link if it has no address.

Parameters

advert	advertisement to send, the interface hardware address is used if it carries none.
solicitation	solicitation to answer.

Returns: 0 on success, -1 on failure.

◆ setRouterSolicitationListener()

template<class Protocol >

int join::BasicNdpServer< Protocol >::setRouterSolicitationListener ( RouterSolicitationNotify cb )

inlinenoexcept

set the callback called on every router solicitation received.

Parameters

cb	callback, called from the reactor thread, must not throw nor destroy the instance.

Returns: 0 on success, -1 on failure.

◆ unsetRouterSolicitationListener()

template<class Protocol >

int join::BasicNdpServer< Protocol >::unsetRouterSolicitationListener ( )

inlinenoexcept

unset the router solicitation callback, it is no longer called once this returns.

Returns: 0 on success, -1 on failure.

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

fabric/include/join/ndp.hpp
fabric/include/join/ndp_protocol.hpp

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ RouterSolicitationNotify

Constructor & Destructor Documentation

◆ BasicNdpServer() [1/2]

◆ BasicNdpServer() [2/2]

◆ ~BasicNdpServer()

Member Function Documentation

◆ routerAdvertise() [1/2]

◆ routerAdvertise() [2/2]

◆ setRouterSolicitationListener()

◆ unsetRouterSolicitationListener()