nfd::RibManager Class Reference

Implements the RIB Management of NFD Management Protocol. More...

#include <rib-manager.hpp>

Inheritance diagram for nfd::RibManager:

Collaboration diagram for nfd::RibManager:

Public Types
enum	SlAnnounceResult {   SlAnnounceResult::OK, SlAnnounceResult::ERROR, SlAnnounceResult::VALIDATION_FAILURE, SlAnnounceResult::EXPIRED,   SlAnnounceResult::NOT_FOUND }
using	SlAnnounceCallback = std::function< void(SlAnnounceResult res)>
using	SlFindAnnCallback = std::function< void(optional< ndn::PrefixAnnouncement >)>

Public Member Functions
	RibManager (rib::Rib &rib, ndn::Face &face, ndn::KeyChain &keyChain, ndn::nfd::Controller &nfdController, Dispatcher &dispatcher)
void	applyLocalhostConfig (const ConfigSection &section, const std::string &filename)
	Apply localhost_security configuration. More...
void	enableLocalhop (const ConfigSection &section, const std::string &filename)
	Apply localhop_security configuration and allow accepting commands on /localhop/nfd/rib prefix. More...
void	disableLocalhop ()
	Disallow accepting commands on /localhop/nfd/rib prefix. More...
void	applyPaConfig (const ConfigSection &section, const std::string &filename)
	Apply prefix_announcement_validation configuration. More...
void	registerWithNfd ()
	Start accepting commands and dataset requests. More...
void	enableLocalFields ()
	Enable NDNLP IncomingFaceId field in order to support self-registration commands. More...
void	slAnnounce (const ndn::PrefixAnnouncement &pa, uint64_t faceId, time::milliseconds maxLifetime, const SlAnnounceCallback &cb)
	Insert a route by prefix announcement from self-learning strategy. More...
void	slRenew (const Name &name, uint64_t faceId, time::milliseconds maxLifetime, const SlAnnounceCallback &cb)
	Renew a route created by prefix announcement from self-learning strategy. More...
void	slFindAnn (const Name &name, const SlFindAnnCallback &cb) const
	Retrieve an outgoing prefix announcement for self-learning strategy. More...
Public Member Functions inherited from nfd::ManagerBase
virtual	~ManagerBase ()
const std::string &	getModule () const

Static Public Attributes
static const Name	LOCALHOP_TOP_PREFIX = "/localhop/nfd"

Additional Inherited Members
Protected Types inherited from nfd::ManagerBase
using	ControlCommandHandler = std::function< void(const ControlCommand &command, const Name &prefix, const Interest &interest, const ControlParameters &parameters, const ndn::mgmt::CommandContinuation done)>
Protected Member Functions inherited from nfd::ManagerBase
	ManagerBase (const std::string &module, Dispatcher &dispatcher)
	ManagerBase (const std::string &module, Dispatcher &dispatcher, CommandAuthenticator &authenticator)
template<typename Command >
void	registerCommandHandler (const std::string &verb, const ControlCommandHandler &handler)
void	registerStatusDatasetHandler (const std::string &verb, const ndn::mgmt::StatusDatasetHandler &handler)
ndn::mgmt::PostNotification	registerNotificationStream (const std::string &verb)
void	extractRequester (const Interest &interest, ndn::mgmt::AcceptContinuation accept)
	Extracts the requester from a ControlCommand request. More...

Detailed Description

Implements the RIB Management of NFD Management Protocol.

See also

https://redmine.named-data.net/projects/nfd/wiki/RibMgmt

Definition at line 49 of file rib-manager.hpp.

Member Typedef Documentation

SlAnnounceCallback

using nfd::RibManager::SlAnnounceCallback = std::function<void(SlAnnounceResult res)>

Definition at line 101 of file rib-manager.hpp.

SlFindAnnCallback

using nfd::RibManager::SlFindAnnCallback = std::function<void(optional<ndn::PrefixAnnouncement>)>

Definition at line 102 of file rib-manager.hpp.

Member Enumeration Documentation

SlAnnounceResult

enum nfd::RibManager::SlAnnounceResult

strong

Enumerator
OK	RIB and FIB have been updated.
ERROR	unspecified error
VALIDATION_FAILURE	the announcement cannot be verified against the trust schema
EXPIRED	the announcement has expired
NOT_FOUND	route does not exist (slRenew only)

Definition at line 93 of file rib-manager.hpp.

Constructor & Destructor Documentation

RibManager()

nfd::RibManager::RibManager	(	rib::Rib &	rib,
		ndn::Face &	face,
		ndn::KeyChain &	keyChain,
		ndn::nfd::Controller &	nfdController,
		Dispatcher &	dispatcher
	)

Definition at line 51 of file rib-manager.cpp.

References nfd::ManagerBase::registerStatusDatasetHandler().

Member Function Documentation

applyLocalhostConfig()

void nfd::RibManager::applyLocalhostConfig	(	const ConfigSection &	section,
		const std::string &	filename
	)

Apply localhost_security configuration.

Definition at line 73 of file rib-manager.cpp.

References ndn::security::ValidatorConfig::load().

enableLocalhop()

void nfd::RibManager::enableLocalhop	(	const ConfigSection &	section,
		const std::string &	filename
	)

Apply localhop_security configuration and allow accepting commands on /localhop/nfd/rib prefix.

Definition at line 79 of file rib-manager.cpp.

References ndn::security::ValidatorConfig::load().

disableLocalhop()

void nfd::RibManager::disableLocalhop

(

)

Disallow accepting commands on /localhop/nfd/rib prefix.

Definition at line 86 of file rib-manager.cpp.

applyPaConfig()

void nfd::RibManager::applyPaConfig	(	const ConfigSection &	section,
		const std::string &	filename
	)

Apply prefix_announcement_validation configuration.

Definition at line 92 of file rib-manager.cpp.

References ndn::security::ValidatorConfig::load().

registerWithNfd()

void nfd::RibManager::registerWithNfd

(

)

Start accepting commands and dataset requests.

Definition at line 98 of file rib-manager.cpp.

References nfd::ACTIVE_FACE_FETCH_INTERVAL, LOCALHOP_TOP_PREFIX, nfd::LOCALHOST_TOP_PREFIX, NFD_LOG_INFO, ndn::util::NotificationSubscriber< Notification >::onNotification, and ndn::util::NotificationSubscriberBase::start().

enableLocalFields()

void nfd::RibManager::enableLocalFields

(

)

Enable NDNLP IncomingFaceId field in order to support self-registration commands.

Definition at line 114 of file rib-manager.cpp.

References ndn::nfd::BIT_LOCAL_FIELDS_ENABLED, ndn::tlv::nfd::ControlParameters, NDN_THROW, NFD_LOG_DEBUG, ndn::nfd::Controller::start(), and ndn::to_string().

slAnnounce()

void nfd::RibManager::slAnnounce	(	const ndn::PrefixAnnouncement &	pa,
		uint64_t	faceId,
		time::milliseconds	maxLifetime,
		const SlAnnounceCallback &	cb
	)

Insert a route by prefix announcement from self-learning strategy.

Parameters

pa	A prefix announcement. It must contain the Data.
faceId	Face on which the announcement arrives.
maxLifetime	Maximum route lifetime as imposed by self-learning strategy.
cb	Callback to receive the operation result.

If pa passes validation and is unexpired, inserts or replaces a route for the announced name and faceId whose lifetime is set to the earlier of now+maxLifetime or prefix announcement expiration time, updates FIB, and invokes cb with SlAnnounceResult::OK. In case pa expires when validation completes, invokes cb with SlAnnounceResult::EXPIRED. If pa cannot be verified by the trust schema given in rib.localhop_security config key, or the relevant config has not been loaded via enableLocalHop, invokes cb with SlAnnounceResult::VALIDATION_FAILURE.

Self-learning strategy invokes this method after receiving a Data carrying a prefix announcement.

Definition at line 357 of file rib-manager.cpp.

References ndn::PrefixAnnouncement::getData(), and ndn::security::v2::Validator::validate().

slRenew()

void nfd::RibManager::slRenew	(	const Name &	name,
		uint64_t	faceId,
		time::milliseconds	maxLifetime,
		const SlAnnounceCallback &	cb
	)

Renew a route created by prefix announcement from self-learning strategy.

Parameters

name	Data name, for finding RIB entry by longest-prefix-match.
faceId	Nexthop face.
maxLifetime	Maximum route lifetime as imposed by self-learning strategy.
cb	Callback to receive the operation result.

If the specified route exists, prolongs its lifetime to the earlier of now+maxLifetime or prefix announcement expiration time, and invokes cb with SlAnnounceResult::OK. If the prefix announcement has expired, invokes cb with SlAnnounceResult::EXPIRED. If the route is not found, invokes cb with SlAnnounceResult::NOT_FOUND.

Self-learning strategy invokes this method after an Interest forwarded via a learned route is satisfied.

Bug:

In current implementation, if an slAnnounce operation is in progress to create a Route or replace a prefix announcement, slRenew could fail because Route does not exist in existing RIB, or overwrite the new prefix announcement with an old one.

Definition at line 382 of file rib-manager.cpp.

References nfd::rib::Route::annExpires, nfd::rib::Route::announcement, nfd::rib::Route::expires, nfd::rib::Route::faceId, NFD_LOG_DEBUG, NFD_LOG_INFO, ndn::time::steady_clock::now(), nonstd::optional_lite::nullopt, nfd::rib::Route::origin, and ndn::nfd::ROUTE_ORIGIN_PREFIXANN.

slFindAnn()

void nfd::RibManager::slFindAnn	(	const Name &	name,
		const SlFindAnnCallback &	cb
	)		const

Retrieve an outgoing prefix announcement for self-learning strategy.

Parameters

name	Data name.
cb	Callback to receive a prefix announcement that announces a prefix of name, or nullopt if no RIB entry is found by longest-prefix-match of name.

Self-learning strategy invokes this method before sending a Data in reply to a discovery Interest, so as to attach a prefix announcement onto that Data.

Bug:

In current implementation, if an slAnnounce operation is in progress, slFindAnn does not wait for that operation to complete and its result reflects the prior RIB state.

Definition at line 407 of file rib-manager.cpp.

References nonstd::optional_lite::nullopt.

Member Data Documentation

LOCALHOP_TOP_PREFIX

const Name nfd::RibManager::LOCALHOP_TOP_PREFIX = "/localhop/nfd"

static

Definition at line 243 of file rib-manager.hpp.

Referenced by nfd::rib::HostToGatewayReadvertisePolicy::handleNewRoute(), and registerWithNfd().

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

• ndnSIM/NFD/daemon/mgmt/rib-manager.hpp
• ndnSIM/NFD/daemon/mgmt/rib-manager.cpp