Server Class Reference

a DHCP server handing out addresses from a pool. More...

Inheritance diagram for Server:

Collaboration diagram for Server:

Public Member Functions
	Server (const std::string &device, const IpAddress &first, uint32_t count, const DhcpOption &options)
	create the server instance.

Protected Member Functions
void	onDiscover (const DhcpPacket &request) override
	offer an address to a client asking for one.
void	onRequest (const DhcpPacket &request) override
	acknowledge the address a client asks to keep.
void	onRelease (const DhcpPacket &request) override
	give the address of a client back to the pool.
void	onDecline (const DhcpPacket &request) override
	drop an address a client reported as already in use.
void	onInform (const DhcpPacket &request) override
	answer a client asking only for the parameters.
IpAddress	allocate (const DhcpPacket &request)
	pick an address for the given client.

Protected Attributes
const uint32_t	_first
	first address of the pool, in host order.
const uint32_t	_count
	number of addresses in the pool.
const DhcpOption	_options
	options advertised to the clients.
std::map< MacAddress, IpAddress >	_leases
	addresses handed out, indexed by client hardware address.

Detailed Description

a DHCP server handing out addresses from a pool.

Constructor & Destructor Documentation

Server()

Server::Server ( const std::string & device, const IpAddress & first, uint32_t count, const DhcpOption & options )

inline

create the server instance.

Parameters

device	interface to serve.
first	first address of the pool.
count	number of addresses in the pool.
options	options to advertise to the clients.

Member Function Documentation

allocate()

IpAddress Server::allocate ( const DhcpPacket & request )

inlineprotected

pick an address for the given client.

Parameters

request

message received.

Returns

the address picked, wildcard if the pool is exhausted.

onDecline()

void Server::onDecline ( const DhcpPacket & request )

inlineoverrideprotected

drop an address a client reported as already in use.

Parameters

request

message received.

onDiscover()

void Server::onDiscover ( const DhcpPacket & request )

inlineoverrideprotected

offer an address to a client asking for one.

Parameters

request

message received.

onInform()

void Server::onInform ( const DhcpPacket & request )

inlineoverrideprotected

answer a client asking only for the parameters.

Parameters

request

message received.

onRelease()

void Server::onRelease ( const DhcpPacket & request )

inlineoverrideprotected

give the address of a client back to the pool.

Parameters

request

message received.

onRequest()

void Server::onRequest ( const DhcpPacket & request )

inlineoverrideprotected

acknowledge the address a client asks to keep.

Parameters

request

message received.

Member Data Documentation

_count

const uint32_t Server::_count

protected

number of addresses in the pool.

_first

const uint32_t Server::_first

protected

first address of the pool, in host order.

_leases

std::map<MacAddress, IpAddress> Server::_leases

protected

addresses handed out, indexed by client hardware address.

_options

const DhcpOption Server::_options

protected

options advertised to the clients.

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

• fabric/samples/dhcpd.cpp