flex_option_callouts.cc File Reference

#include <config.h>
#include <flex_option.h>
#include <flex_option_log.h>
#include <cc/command_interpreter.h>
#include <hooks/hooks.h>
#include <dhcp/pkt4.h>
#include <dhcp/pkt6.h>
#include <dhcpsrv/cfgmgr.h>
#include <process/daemon.h>

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Namespaces
namespace	isc
	Defines the logger used by the top-level component of kea-lfc.
namespace	isc::flex_option

Functions
int	load (LibraryHandle &handle)
	This function is called when the library is loaded.
int	multi_threading_compatible ()
	This function is called to retrieve the multi-threading compatibility.
int	pkt4_send (CalloutHandle &handle)
	This callout is called at the "pkt4_send" hook.
int	pkt6_send (CalloutHandle &handle)
	This callout is called at the "pkt6_send" hook.
int	unload ()
	This function is called when the library is unloaded.

Variables
FlexOptionImplPtr	isc::flex_option::impl

Function Documentation

load()

int load

(

LibraryHandle &

handle

)

This function is called when the library is loaded.

Parameters

handle

library handle

Returns

0 when initialization is successful, 1 otherwise

Definition at line 124 of file flex_option_callouts.cc.

References FLEX_OPTION_LOAD_ERROR, isc::flex_option::flex_option_logger, isc::hooks::LibraryHandle::getParameter(), isc::process::Daemon::getProcName(), isc::flex_option::impl, isc::dhcp::CfgMgr::instance(), isc_throw, and LOG_ERROR.

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multi_threading_compatible()

int multi_threading_compatible

(

)

This function is called to retrieve the multi-threading compatibility.

Returns

1 which means compatible with multi-threading.

Definition at line 165 of file flex_option_callouts.cc.

pkt4_send()

int pkt4_send

(

CalloutHandle &

handle

)

This callout is called at the "pkt4_send" hook.

It retrieves v4 query and response packets, and then adds, supersedes or removes option values in the response according to expressions evaluated on the query.

Parameters

handle

CalloutHandle.

Returns

0 upon success, non-zero otherwise

Definition at line 47 of file flex_option_callouts.cc.

References isc::flex_option::flex_option_logger, FLEX_OPTION_PROCESS_ERROR, isc::hooks::CalloutHandle::getArgument(), isc::hooks::CalloutHandle::getStatus(), isc::flex_option::impl, isc_throw, LOG_ERROR, isc::hooks::CalloutHandle::NEXT_STEP_DROP, isc::hooks::CalloutHandle::NEXT_STEP_SKIP, and isc::dhcp::Option::V4.

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pkt6_send()

int pkt6_send

(

CalloutHandle &

handle

)

This callout is called at the "pkt6_send" hook.

It retrieves v6 query and response packets, and then adds, supersedes or removes option values in the response according to expressions evaluated on the query.

Parameters

handle

CalloutHandle.

Returns

0 upon success, non-zero otherwise

Definition at line 88 of file flex_option_callouts.cc.

References isc::flex_option::flex_option_logger, FLEX_OPTION_PROCESS_ERROR, isc::hooks::CalloutHandle::getArgument(), isc::hooks::CalloutHandle::getStatus(), isc::flex_option::impl, isc_throw, LOG_ERROR, isc::hooks::CalloutHandle::NEXT_STEP_DROP, isc::hooks::CalloutHandle::NEXT_STEP_SKIP, and isc::dhcp::Option::V6.

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unload()

int unload

(

)

This function is called when the library is unloaded.

Returns

always 0.

Definition at line 156 of file flex_option_callouts.cc.

References isc::flex_option::flex_option_logger, FLEX_OPTION_UNLOAD, isc::flex_option::impl, and LOG_INFO.