isc::dhcp::Dhcp6to4Ipc Class Reference

Handles DHCPv4-over-DHCPv6 IPC on the DHCPv6 server side. More...

#include <dhcp6to4_ipc.h>

Inheritance diagram for isc::dhcp::Dhcp6to4Ipc:

Public Member Functions
virtual void	open ()
	Open communication socket.
Public Member Functions inherited from isc::dhcp::Dhcp4o6IpcBase
void	close ()
	Close communication socket.
virtual void	open ()=0
	Open communication socket (for derived classes).
Pkt6Ptr	receive ()
	Receive message over IPC.
void	send (const Pkt6Ptr &pkt)
	Send message over IPC.

Static Public Member Functions
static void	handler (int)
	On receive handler.
static Dhcp6to4Ipc &	instance ()
	Returns pointer to the sole instance of Dhcp6to4Ipc.

Static Public Attributes
static uint16_t	client_port = 0

Protected Member Functions
	Dhcp6to4Ipc ()
	Constructor.
virtual	~Dhcp6to4Ipc ()
	Destructor.
Protected Member Functions inherited from isc::dhcp::Dhcp4o6IpcBase
	Dhcp4o6IpcBase ()
	Constructor.
virtual	~Dhcp4o6IpcBase ()
	Destructor.
int	open (uint16_t port, EndpointType endpoint_type)
	Open communication socket (from base class).

Additional Inherited Members
Public Types inherited from isc::dhcp::Dhcp4o6IpcBase
enum	EndpointType { ENDPOINT_TYPE_V4 = 4 , ENDPOINT_TYPE_V6 = 6 }
	Endpoint type: DHCPv4 or DHCPv6 server. More...
Protected Attributes inherited from isc::dhcp::Dhcp4o6IpcBase
uint16_t	port_
	Port number configured for IPC communication.
int	socket_fd_
	Socket descriptor.

Detailed Description

Handles DHCPv4-over-DHCPv6 IPC on the DHCPv6 server side.

Definition at line 21 of file dhcp6to4_ipc.h.

Constructor & Destructor Documentation

Dhcp6to4Ipc()

isc::dhcp::Dhcp6to4Ipc::Dhcp6to4Ipc ( )

protected

Constructor.

Default constructor

Definition at line 32 of file dhcp6to4_ipc.cc.

~Dhcp6to4Ipc()

virtual isc::dhcp::Dhcp6to4Ipc::~Dhcp6to4Ipc ( )

inlineprotectedvirtual

Destructor.

Definition at line 29 of file dhcp6to4_ipc.h.

Member Function Documentation

handler()

void isc::dhcp::Dhcp6to4Ipc::handler ( int  )

static

On receive handler.

The handler sends the DHCPv6 packet back to the remote address

Definition at line 57 of file dhcp6to4_ipc.cc.

References isc::hooks::HooksManager::callCallouts(), isc::hooks::HooksManager::calloutsPresent(), isc::dhcp::Dhcpv6Srv::checkRelaySourcePort(), isc::util::OutputBuffer::clear(), client_port, isc::dhcp::DBG_DHCP6_BASIC, isc::dhcp::DBG_DHCP6_DETAIL, isc::dhcp::DBG_DHCP6_DETAIL_DATA, isc::dhcp::DBG_DHCP6_HOOKS, isc::dhcp::DHCP6_DHCP4O6_PACKET_RECEIVED, isc::dhcp::DHCP6_DHCP4O6_RECEIVE_FAIL, isc::dhcp::DHCP6_DHCP4O6_RECEIVING, isc::dhcp::DHCP6_DHCP4O6_RESPONSE_DATA, isc::dhcp::DHCP6_DHCP4O6_SEND_FAIL, isc::dhcp::DHCP6_HOOK_BUFFER_SEND_SKIP, DHCPV6_RELAY_FORW, DHCPV6_RELAY_REPL, isc::dhcp::getCalloutHandle(), isc::dhcp::Dhcpv6Srv::getHookIndexBuffer6Send(), isc::hooks::hooks_logger, instance(), isc::dhcp::IfaceMgr::instance(), LOG_DEBUG, LOG_ERROR, isc::hooks::CalloutHandle::NEXT_STEP_DROP, isc::hooks::CalloutHandle::NEXT_STEP_SKIP, isc::dhcp::packet6_logger, isc::dhcp::Dhcpv6Srv::processStatsSent(), isc::dhcp::Dhcp4o6IpcBase::receive(), and isc::dhcp::IfaceMgr::send().

Referenced by open().

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instance()

Dhcp6to4Ipc & isc::dhcp::Dhcp6to4Ipc::instance ( )

static

Returns pointer to the sole instance of Dhcp6to4Ipc.

Dhcp6to4Ipc is a singleton class

Returns

the only existing instance of DHCP4o6 IPC

Definition at line 34 of file dhcp6to4_ipc.cc.

Referenced by isc::dhcp::Dhcpv6Srv::Dhcpv6Srv(), isc::dhcp::Dhcpv6Srv::~Dhcpv6Srv(), handler(), isc::dhcp::ControlledDhcpv6Srv::processConfig(), and isc::dhcp::Dhcpv6Srv::processDhcp4Query().

open()

void isc::dhcp::Dhcp6to4Ipc::open ( )

virtual

Open communication socket.

Call base open method and sets the handler/callback when needed

Implements isc::dhcp::Dhcp4o6IpcBase.

Definition at line 39 of file dhcp6to4_ipc.cc.

References isc::dhcp::IfaceMgr::addExternalSocket(), isc::dhcp::Dhcp4o6IpcBase::close(), isc::dhcp::Dhcp4o6IpcBase::ENDPOINT_TYPE_V6, isc::dhcp::CfgMgr::getStagingCfg(), handler(), isc::dhcp::IfaceMgr::instance(), isc::dhcp::CfgMgr::instance(), isc_throw, isc::dhcp::Dhcp4o6IpcBase::open(), and isc::dhcp::Dhcp4o6IpcBase::socket_fd_.

Referenced by isc::dhcp::ControlledDhcpv6Srv::processConfig().

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Member Data Documentation

client_port

uint16_t isc::dhcp::Dhcp6to4Ipc::client_port = 0

static

Parameters

client_port

UDP port where all responses are sent to. Not zero is mostly useful for testing purposes.

Definition at line 51 of file dhcp6to4_ipc.h.

Referenced by isc::dhcp::Dhcpv6Srv::Dhcpv6Srv(), and handler().

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

• dhcp6to4_ipc.h
• dhcp6to4_ipc.cc