This class manages routes leaking between bridge VRF instances and the routing VRF instance. Routes are leaking is bi-directional: a) first, during the forward stage interface routes with LOCAL_VM_PORT_PEER are copied from each bridge VRF inet table into the routing VRF inet and EVPN tables; b) second, routes from the routing VRF are redistributed amongst bridge VRF tables durging the backward stage. The class extensively uses events notifications to trigger routes leaking. More...

#include <vxlan_routing_manager.h>

Collaboration diagram for VxlanRoutingManager:

[legend]

Public Member Functions
	VxlanRoutingManager (Agent *agent)
	Constructs instance of the class and links to the Agent class instance. Since only one agent class instance works per system process, this implies that only one instance of VxlanRoutingManager exists. More...

virtual	~VxlanRoutingManager ()
	Destroys the VxlanRoutingManager instance. More...

void	Register ()
	Registers handlers for events associated with changes in virtual networks (VnTable class) and VRF instances (VrfTable class). More...

void	Shutdown ()
	Unregisters handlers for events associated with changes in virtual networks (VnTable class) and VRF instances (VrfTable class). More...

void	VnNotify (DBTablePartBase partition, DBEntryBase e)
	A handler for changes (new/update/delete) in a virtual network (VnEntry class). More...

void	BridgeVnNotify (const VnEntry vn, VxlanRoutingVnState vn_state)
	A handler for changes (new/update/delete) in the virtual network from a bridge VRF. More...

void	RoutingVnNotify (const VnEntry vn, VxlanRoutingVnState vn_state)
	A handler for changes (new/update/delete) in the virtual network from a routing VRF. More...

void	VrfNotify (DBTablePartBase partition, DBEntryBase e)
	A handler for changes (new/update/delete) in a VRF instance (VrfEntry class). More...

void	VmiNotify (DBTablePartBase partition, DBEntryBase e)
	Handler for changes (new/update/delete) in a VMI (VmInterface class). More...

bool	RouteNotify (DBTablePartBase partition, DBEntryBase e)
	Handler for changes (new/update/delete) in a route (EVPN or Inet). Main entry point for routes leaking. More...

bool	WithdrawEvpnRouteFromRoutingVrf (const VrfEntry routing_vrf, DBTablePartBase partition, DBEntryBase *e)
	Deletes a given EVPN route from EVPN table of the routing VRF instance. More...

bool	LeakRoutesIntoBridgeTables (DBTablePartBase partition, DBEntryBase e, const boost::uuids::uuid &uuid, const VnEntry *vn, bool update=false)
	Performs advertisement and deletion of routing routes (with VrfNH) in bridge VRF instances. External tunnels and routes with a prefix that is not present in bridge VRF instance are selected for leaking. More...

void	HandleSubnetRoute (const VrfEntry *vrf, bool bridge_vrf=false)
	Handles routing routes (with VrfNH) update in the routing VRF instance. More...

void	FillSandeshInfo (VxlanRoutingResp *resp)
	Updates Sandesh response. More...

DBTable::ListenerId	vn_listener_id () const
	Returns the ID of the listener to changes in the VnTable. More...

DBTable::ListenerId	vrf_listener_id () const
	Returns the ID of the listener to changes in the VrfTable. More...

DBTable::ListenerId	vmi_listener_id () const
	Returns the ID of the listener to changes in the InterfaceTable. More...

const VxlanRoutingVrfMapper &	vrf_mapper () const
	Returns the map between LR uuids and associated bridge and routing VRF instances. More...

AgentRouteWalker *	walker ()
	Returns a pointer to the AgentRouteWalkerPtr object. More...

	DISALLOW_COPY_AND_ASSIGN (VxlanRoutingManager)

Static Public Member Functions
static void	PrintEvpnTable (const VrfEntry *const_vrf)
	Prints EVPN table of the given VRF instance. More...

static void	PrintInetTable (const VrfEntry *const_vrf)
	Prints IPv4 Inet table of the given VRF instance. More...

static void	ListAttachedVns ()
	Prints all virtual networks attached to logical routers. More...

Private Member Functions
bool	InetRouteNotify (DBTablePartBase partition, DBEntryBase e)
	Routes leaking functions. More...

bool	EvpnRouteNotify (DBTablePartBase partition, DBEntryBase e)
	Performs routes leaking between the EVPN table of the routing VRF instance and the Inet table of the routing VRF instance. More...

void	ClearRedundantVrfPath (DBEntryBase *e)
	Removes redundant VrfNH path from a given route. These routes might arise with small chance in a bridge VRF inet tables when tunnels in the routing VRF instance arrive later then in the bridge VRF instance. More...

void	WhenBridgeInetIntfWasDeleted (const InetUnicastRouteEntry inet_rt, const VrfEntry routing_vrf)
	Handles deletion of a route in the EVPN table of the routing VRF instance. More...

void	WhenRoutingEvpnRouteWasDeleted (const EvpnRouteEntry routing_evpn_rt, const Peer delete_from_peer)
	Handles deletion of a route in the Inet table of the routing VRF instance. More...

void	RoutingVrfDeleteAllRoutes (VrfEntry *rt_vrf)
	deletes all routes in EVPN table of routing VRF More...

void	DeleteSubnetRoute (const VrfEntry *vrf)
	Deletes subnet routes (actually, paths with VrfNH) in the given bridge VRF. This function is demanded at vn.c:618. More...

void	DeleteSubnetRoute (const VnEntry *vn, const std::string &vrf_name)
	Deletes subnet routes from a specified virtual network (VirtualNetwork) More...

void	DeleteIpamRoutes (const VnEntry *vn, const std::string &vrf_name, const IpAddress &ipam_prefix, const uint32_t plen)
	Delete routes to IPAM, specified by IP prefix and prefix length. More...

void	UpdateSubnetRoute (const VrfEntry vrf, const VrfEntry routing_vrf)
	Updates subnet routes (actually, paths with VrfNH) in the given bridge VRF. More...

std::string	GetOriginVn (const VrfEntry *routing_vrf, const IpAddress &ip_addr, const uint8_t &plen)
	Finds first occurence of a route with the given prefix (IP address and length) in Inet tables of bridge VRF instances connected to the given routing VRF instance (LR). More...

bool	IsHostRouteFromLocalSubnet (const EvpnRouteEntry *rt)
	Determines whether the given EVPN route is a host one and belongs to a subnet of a local bridge VRF. During the search all subnets in all bridge VRF instances connected to the LR are traversed. More...

bool	IsVrfLocalRoute (EvpnRouteEntry routing_evpn_rt, VrfEntry bridge_vrf)
	Determines if the given EVPN route has an interface NH or a composite of interfaces NH that belongs to the given bridge VRF instance. More...

bool	IsLocalRoute (EvpnRouteEntry routing_evpn_rt, VrfEntry bridge_vrf)
	Determines if the given EVPN route is already present in the given VRF. More...

bool	HasBgpPeerPath (EvpnRouteEntry *evpn_rt)
	Determines whether the given EVPN route has at least one path originating from BGP/XMPP (has Peer type BGP_PATH) More...

const AgentPath *	FindBGPaaSPath (const InetUnicastRouteEntry *rt)
	Finds in the given route the path that was announced using BGPaaS. It is expected that this path has BGP_PEER peer type and the interface or composite nexthop. More...

void	AdvertiseBGPaaSRoute (const IpAddress &prefix_ip, uint32_t prefix_len, const AgentPath path, EvpnAgentRouteTable evpn_table)
	Advertises BGPaaS interface path in the routing VRF instance by selecting corresponding path components in a path from the bridge VRF instance. More...

TunnelNHKey *	AllocateTunnelNextHopKey (const IpAddress &dip, const MacAddress &dmac) const
	XMPP Advertising functions. More...

void	XmppAdvertiseEvpnRoute (const IpAddress &prefix_ip, const int prefix_len, uint32_t vxlan_id, const std::string vrf_name, const RouteParameters &params, const Peer *bgp_peer)
	Advertises an EVPN route received using XMPP channel. More...

void	XmppAdvertiseInetRoute (const IpAddress &prefix_ip, const int prefix_len, uint32_t vxlan_id, const std::string vrf_name, const RouteParameters &params, const Peer *bgp_peer)
	Advertises an Inet route received using XMPP channel. More...

void	XmppAdvertiseInetRoute (const IpAddress &prefix_ip, const int prefix_len, const std::string vrf_name, const AgentPath *)
	Advertises an Inet route received from EVPN table. More...

void	XmppAdvertiseEvpnTunnel (EvpnAgentRouteTable inet_table, const IpAddress &prefix_ip, const int prefix_len, uint32_t vxlan_id, const std::string vrf_name, const RouteParameters &params, const Peer bgp_peer)
	Advertises in the EVPN table a tunnel route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute. More...

void	XmppAdvertiseEvpnInterface (EvpnAgentRouteTable inet_table, const IpAddress &prefix_ip, const int prefix_len, uint32_t vxlan_id, const std::string vrf_name, const RouteParameters &params, const Peer bgp_peer)
	Advertises in the EVPN table an interface route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute. More...

void	XmppAdvertiseInetTunnel (InetUnicastAgentRouteTable inet_table, const IpAddress &prefix_ip, const int prefix_len, uint32_t vxlan_id, const std::string vrf_name, const RouteParameters &params, const Peer bgp_peer)
	Advertises in the Inet table a tunnel route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute. More...

void	XmppAdvertiseInetTunnel (InetUnicastAgentRouteTable inet_table, const IpAddress &prefix_ip, const int prefix_len, const std::string vrf_name, const AgentPath path)
	Advertises in the Inet table a tunnel route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute. More...

void	XmppAdvertiseInetInterfaceOrComposite (InetUnicastAgentRouteTable inet_table, const IpAddress &prefix_ip, const int prefix_len, const std::string vrf_name, const AgentPath path)
	Advertises in the Inet table an interface route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute. More...

void	CopyPathToInetTable (const AgentPath path, const IpAddress &prefix_ip, const uint32_t plen, const Peer peer, const RouteParameters &params, InetUnicastAgentRouteTable *inet_table)
	Copies the path to the prefix address into the EVPN table with the given Peer. The function is used during routes leaking between routing VRF EVPN and Inet tables. More...

Static Private Member Functions
static uint32_t	GetNewLocalSequence (const AgentPath *)
	Auxilliary functions. More...

static bool	is_ipv4_string (const std::string &prefix_str)
	Determines whether the address string contains an IPv4 address as substring or not. More...

static bool	is_ipv6_string (const std::string &prefix_str)
	Determines whether the address string contains an IPv6 address as substring or not. More...

static uint32_t	ipv4_prefix_len (const std::string &prefix_str)
	Extracts length of IPv4 subnet address from the prefix string. More...

static std::string	ipv4_prefix (const std::string &prefix_str)
	Extracts an IPv4 address string from the prefix string. More...

static uint32_t	ipv6_prefix_len (const std::string &prefix_str)
	Extracts length of IPv6 subnet address from the prefix string. More...

static std::string	ipv6_prefix (const std::string &prefix_str)
	Extracts an IPv6 address string from the prefix string. More...

static bool	IsVxlanAvailable (const Agent *agent)
	Checks whether VxLAN routing manager is enabled or not. More...

static bool	RoutePrefixIsEqualTo (const EvpnRouteEntry *route, const IpAddress &prefix_ip, const uint32_t prefix_len)
	Determines whether route prefix in the EVPN route is equal to the given pair of prefix IP address and length. More...

static bool	RoutePrefixIsEqualTo (const InetUnicastRouteEntry *route, const IpAddress &prefix_ip, const uint32_t prefix_len)
	Determines whether route prefix of the Inet route is equal to the given pair of prefix IP address and length. More...

static bool	IsHostRoute (const IpAddress &prefix_ip, uint32_t prefix_len)
	Determines whether the prefix address and the prefix length point to a host route (/32 for IPv4, /128 for IPv6) or to a subnet route. More...

static bool	IsHostRoute (const EvpnRouteEntry *rt)
	Determines whether the given EVPN route points to a host or a subnet. More...

static bool	HasVrfNexthop (const AgentRoute *rt)
	Determines whether the given route has the path with a VRF nexthop (VrfNH) More...

static bool	IsRoutingVrf (const VrfEntry *vrf)
	Determines whether the pointer to the VRF instance is of routing type. More...

static bool	IsBridgeVrf (const VrfEntry *vrf)
	Determines whether the pointer to the VRF instance is of bridge type. More...

static bool	IsRoutingVrf (const std::string vrf_name, const Agent *agent)
	Checks whether the VRF instance with the given name is routing or not. More...

static const AgentPath *	FindPathWithGivenPeer (const AgentRoute *inet_rt, const Peer::Type peer_type)
	Finds in the given route the path with a specified Peer type. More...

static const AgentPath *	FindPathWithGivenPeerAndNexthop (const AgentRoute *inet_rt, const Peer::Type peer_type, const NextHop::Type nh_type, bool strict_match=true)
	Finds in the given route the path with a specified Peer type and a specified nexthop type. More...

static const AgentPath *	FindInterfacePathWithGivenPeer (const AgentRoute *inet_rt, const Peer::Type peer_type, bool strict_match=true)
	Finds in the given route the path with the given Peer type and interface nexthop (InterfaceNH). More...

static const AgentPath *	FindInterfacePathWithBgpPeer (const AgentRoute *inet_rt, bool strict_match=true)
	Finds in the given route the path which has the BGP_PEER Peer type and the Interface nexthop type. Such path presumably points to BGPaaS advertised route. More...

static const AgentPath *	FindInterfacePathWithLocalVmPeer (const AgentRoute *inet_rt, bool strict_match=true)
	Finds in the given route the path which has the LOCAL_VM_PEER peer type and the Interface nexthop type. More...

static MacAddress	NbComputeMac (const Ip4Address &compute_ip, const Agent *agent)
	Returns the MAC address for the IP of a given neighbouring compute. More...

template<class ItType >
static std::vector< IpAddress >	ItemNexthopsToVector (ItType *item)
	Templates. More...

template<typename NhType >
static void	AddInterfaceComponentToList (const std::string &prefix_str, const std::string &vrf_name, const NhType &nh_item, ComponentNHKeyList &comp_nh_list)
	Adds an interface or a composite of interfaces nexthops to the list of components NH keys needed for construction of the a mixed composite. More...

static AgentRoute *	FindEvpnOrInetRoute (const Agent *agent, const std::string &vrf_name, const IpAddress &ip_addr, uint32_t prefix_len, const autogen::EnetNextHopType &nh_item)
	Finds a route with the given prefix address and len in the EVPN table. More...

static AgentRoute *	FindEvpnOrInetRoute (const Agent *agent, const std::string &vrf_name, const IpAddress &ip_addr, uint32_t prefix_len, const autogen::NextHopType &nh_item)
	Finds a route with the given prefix address and len in the Inet table. More...

static void	DeleteOldInterfacePath (const IpAddress &prefix_ip, const uint32_t plen, const Peer peer, EvpnAgentRouteTable evpn_table)
	Routes copying functions. More...

static void	CopyInterfacePathToEvpnTable (const AgentPath path, const IpAddress &prefix_ip, const uint32_t plen, const Peer peer, const RouteParameters &params, EvpnAgentRouteTable *evpn_table)
	Copies the path to the prefix address into the EVPN table with the given Peer. The function is used during routes leaking between bridge VRF Inet and routing EVPN tables. More...

static void	DeleteOldInterfacePath (const IpAddress &prefix_ip, const uint32_t plen, const Peer peer, InetUnicastAgentRouteTable inet_table)

Private Attributes
Agent *	agent_
	A pointer to the Agent instance. More...

AgentRouteWalkerPtr	walker_
	A pointer to the walker to loop over INET tables in bridge VRF instances. More...

DBTable::ListenerId	vn_listener_id_
	An ID of the listener to changes in VnTable. More...

DBTable::ListenerId	vrf_listener_id_
	An ID of the listener to changes in VrfTable. More...

DBTable::ListenerId	vmi_listener_id_
	An ID of the listener to changes in InterfaceTable. More...

VxlanRoutingVrfMapper	vrf_mapper_
	A map between LR uuids and associated bridge and routing VRF instances. More...

Static Private Attributes
static const Peer *	routing_vrf_interface_peer_ = NULL
	Internal data of this class. More...

static const Peer *	routing_vrf_vxlan_bgp_peer_ = NULL
	A pointer to the Peer where all BGP routes are stored. More...

static uint32_t	loc_sequence_ = 0
	An always increasing counter for new paths (used to signal controoler about new routes). More...

static tbb::mutex	mutex_

Friends
class	VxlanRoutingRouteWalker
	Friends declarations. More...

class	ControllerEcmpRoute
	Allows ControllerEcmpRoute to use private members of this class. More...

class	AgentXmppChannel
	Allows AgentXmppChannel to use private members of this class. More...

class	AgentXmppChannelVxlanInterface
	Allows access to Xmpp advertisement functions via external class. More...

class	VxlanRoutingVrfMapper
	Allows VxlanRoutingVrfMapper to use private members of this class. More...

class	MetadataProxy
	Allows MetadataProxy to use private members of this class. More...

Detailed Description

This class manages routes leaking between bridge VRF instances and the routing VRF instance. Routes are leaking is bi-directional: a) first, during the forward stage interface routes with LOCAL_VM_PORT_PEER are copied from each bridge VRF inet table into the routing VRF inet and EVPN tables; b) second, routes from the routing VRF are redistributed amongst bridge VRF tables durging the backward stage. The class extensively uses events notifications to trigger routes leaking.

Definition at line 423 of file vxlan_routing_manager.h.

Constructor & Destructor Documentation

VxlanRoutingManager::VxlanRoutingManager ( Agent * agent )

Constructs instance of the class and links to the Agent class instance. Since only one agent class instance works per system process, this implies that only one instance of VxlanRoutingManager exists.

VxlanRoutingManager

Definition at line 335 of file vxlan_routing_manager.cc.

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VxlanRoutingManager::~VxlanRoutingManager ( )

virtual

Destroys the VxlanRoutingManager instance.

Definition at line 343 of file vxlan_routing_manager.cc.

Member Function Documentation

template<typename NhType >

void VxlanRoutingManager::AddInterfaceComponentToList	(	const std::string &	prefix_str,
		const std::string &	vrf_name,
		const NhType &	nh_item,
		ComponentNHKeyList &	comp_nh_list
	)

staticprivate

Adds an interface or a composite of interfaces nexthops to the list of components NH keys needed for construction of the a mixed composite.

Definition at line 15 of file vxlan_templates.cc.

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void VxlanRoutingManager::AdvertiseBGPaaSRoute	(	const IpAddress &	prefix_ip,
		uint32_t	prefix_len,
		const AgentPath *	path,
		EvpnAgentRouteTable *	evpn_table
	)

private

Advertises BGPaaS interface path in the routing VRF instance by selecting corresponding path components in a path from the bridge VRF instance.

Definition at line 488 of file vxlan_auxilliary.cc.

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TunnelNHKey * VxlanRoutingManager::AllocateTunnelNextHopKey	(	const IpAddress &	dip,
		const MacAddress &	dmac
	)		const

private

XMPP Advertising functions.

Allocates and returns a new key for the VxLAN tunnel to the given router

Definition at line 18 of file vxlan_xmpp_routes.cc.

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void VxlanRoutingManager::BridgeVnNotify	(	const VnEntry *	vn,
		VxlanRoutingVnState *	vn_state
	)

A handler for changes (new/update/delete) in the virtual network from a bridge VRF.

Definition at line 451 of file vxlan_routing_manager.cc.

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void VxlanRoutingManager::ClearRedundantVrfPath ( DBEntryBase * e )

private

Removes redundant VrfNH path from a given route. These routes might arise with small chance in a bridge VRF inet tables when tunnels in the routing VRF instance arrive later then in the bridge VRF instance.

Definition at line 215 of file vxlan_routes_leaking.cc.

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void VxlanRoutingManager::CopyInterfacePathToEvpnTable	(	const AgentPath *	path,
		const IpAddress &	prefix_ip,
		const uint32_t	plen,
		const Peer *	peer,
		const RouteParameters &	params,
		EvpnAgentRouteTable *	evpn_table
	)

staticprivate

Copies the path to the prefix address into the EVPN table with the given Peer. The function is used during routes leaking between bridge VRF Inet and routing EVPN tables.

Definition at line 869 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::CopyPathToInetTable	(	const AgentPath *	path,
		const IpAddress &	prefix_ip,
		const uint32_t	plen,
		const Peer *	peer,
		const RouteParameters &	params,
		InetUnicastAgentRouteTable *	inet_table
	)

private

Copies the path to the prefix address into the EVPN table with the given Peer. The function is used during routes leaking between routing VRF EVPN and Inet tables.

Definition at line 922 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::DeleteIpamRoutes	(	const VnEntry *	vn,
		const std::string &	vrf_name,
		const IpAddress &	ipam_prefix,
		const uint32_t	plen
	)

private

Delete routes to IPAM, specified by IP prefix and prefix length.

Definition at line 765 of file vxlan_routing_manager.cc.

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void VxlanRoutingManager::DeleteOldInterfacePath	(	const IpAddress &	prefix_ip,
		const uint32_t	plen,
		const Peer *	peer,
		EvpnAgentRouteTable *	evpn_table
	)

staticprivate

Routes copying functions.

Deletes interface path specified with IP prefix, prefix length and Peer from the EVPN table.

Definition at line 848 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::DeleteOldInterfacePath	(	const IpAddress &	prefix_ip,
		const uint32_t	plen,
		const Peer *	peer,
		InetUnicastAgentRouteTable *	inet_table
	)

staticprivate

Definition at line 901 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::DeleteSubnetRoute ( const VrfEntry * vrf )

private

Deletes subnet routes (actually, paths with VrfNH) in the given bridge VRF. This function is demanded at vn.c:618.

Definition at line 850 of file vxlan_routing_manager.cc.

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void VxlanRoutingManager::DeleteSubnetRoute	(	const VnEntry *	vn,
		const std::string &	vrf_name
	)

private

Deletes subnet routes from a specified virtual network (VirtualNetwork)

Definition at line 799 of file vxlan_routing_manager.cc.

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VxlanRoutingManager::DISALLOW_COPY_AND_ASSIGN ( VxlanRoutingManager )

bool VxlanRoutingManager::EvpnRouteNotify	(	DBTablePartBase *	partition,
		DBEntryBase *	e
	)

private

Performs routes leaking between the EVPN table of the routing VRF instance and the Inet table of the routing VRF instance.

Definition at line 146 of file vxlan_routes_leaking.cc.

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void VxlanRoutingManager::FillSandeshInfo ( VxlanRoutingResp * resp )

Updates Sandesh response.

sandesh request

Definition at line 931 of file vxlan_routing_manager.cc.

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const AgentPath * VxlanRoutingManager::FindBGPaaSPath ( const InetUnicastRouteEntry * rt )

private

Finds in the given route the path that was announced using BGPaaS. It is expected that this path has BGP_PEER peer type and the interface or composite nexthop.

Definition at line 455 of file vxlan_auxilliary.cc.

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static AgentRoute* VxlanRoutingManager::FindEvpnOrInetRoute	(	const Agent *	agent,
		const std::string &	vrf_name,
		const IpAddress &	ip_addr,
		uint32_t	prefix_len,
		const autogen::EnetNextHopType &	nh_item
	)

staticprivate

Finds a route with the given prefix address and len in the EVPN table.

static AgentRoute* VxlanRoutingManager::FindEvpnOrInetRoute	(	const Agent *	agent,
		const std::string &	vrf_name,
		const IpAddress &	ip_addr,
		uint32_t	prefix_len,
		const autogen::NextHopType &	nh_item
	)

staticprivate

Finds a route with the given prefix address and len in the Inet table.

const AgentPath * VxlanRoutingManager::FindInterfacePathWithBgpPeer	(	const AgentRoute *	inet_rt,
		bool	strict_match = `true`
	)

staticprivate

Finds in the given route the path which has the BGP_PEER Peer type and the Interface nexthop type. Such path presumably points to BGPaaS advertised route.

Definition at line 440 of file vxlan_auxilliary.cc.

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const AgentPath * VxlanRoutingManager::FindInterfacePathWithGivenPeer	(	const AgentRoute *	inet_rt,
		const Peer::Type	peer_type,
		bool	strict_match = `true`
	)

staticprivate

Finds in the given route the path with the given Peer type and interface nexthop (InterfaceNH).

Definition at line 432 of file vxlan_auxilliary.cc.

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const AgentPath * VxlanRoutingManager::FindInterfacePathWithLocalVmPeer	(	const AgentRoute *	inet_rt,
		bool	strict_match = `true`
	)

staticprivate

Finds in the given route the path which has the LOCAL_VM_PEER peer type and the Interface nexthop type.

Definition at line 447 of file vxlan_auxilliary.cc.

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const AgentPath * VxlanRoutingManager::FindPathWithGivenPeer	(	const AgentRoute *	inet_rt,
		const Peer::Type	peer_type
	)

staticprivate

Finds in the given route the path with a specified Peer type.

Definition at line 382 of file vxlan_auxilliary.cc.

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const AgentPath * VxlanRoutingManager::FindPathWithGivenPeerAndNexthop	(	const AgentRoute *	inet_rt,
		const Peer::Type	peer_type,
		const NextHop::Type	nh_type,
		bool	strict_match = `true`
	)

staticprivate

Finds in the given route the path with a specified Peer type and a specified nexthop type.

Definition at line 402 of file vxlan_auxilliary.cc.

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uint32_t VxlanRoutingManager::GetNewLocalSequence ( const AgentPath * path )

staticprivate

Auxilliary functions.

Returns new value of a local sequence. Thread safe version

Definition at line 94 of file vxlan_auxilliary.cc.

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std::string VxlanRoutingManager::GetOriginVn	(	const VrfEntry *	routing_vrf,
		const IpAddress &	ip_addr,
		const uint8_t &	plen
	)

private

Finds first occurence of a route with the given prefix (IP address and length) in Inet tables of bridge VRF instances connected to the given routing VRF instance (LR).

Definition at line 186 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::HandleSubnetRoute	(	const VrfEntry *	vrf,
		bool	bridge_vrf = `false`
	)

Handles routing routes (with VrfNH) update in the routing VRF instance.

Definition at line 748 of file vxlan_routing_manager.cc.

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bool VxlanRoutingManager::HasBgpPeerPath ( EvpnRouteEntry * evpn_rt )

private

Determines whether the given EVPN route has at least one path originating from BGP/XMPP (has Peer type BGP_PATH)

Definition at line 322 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::HasVrfNexthop ( const AgentRoute * rt )

staticprivate

Determines whether the given route has the path with a VRF nexthop (VrfNH)

Definition at line 306 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::InetRouteNotify	(	DBTablePartBase *	partition,
		DBEntryBase *	e
	)

private

Routes leaking functions.

Performs routes leaking between the Inet table of a bridge VRF instance and the EVPN table of the routing VRF instance.

Definition at line 72 of file vxlan_routes_leaking.cc.

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std::string VxlanRoutingManager::ipv4_prefix ( const std::string & prefix_str )

staticprivate

Extracts an IPv4 address string from the prefix string.

Definition at line 124 of file vxlan_auxilliary.cc.

uint32_t VxlanRoutingManager::ipv4_prefix_len ( const std::string & prefix_str )

staticprivate

Extracts length of IPv4 subnet address from the prefix string.

Definition at line 113 of file vxlan_auxilliary.cc.

std::string VxlanRoutingManager::ipv6_prefix ( const std::string & prefix_str )

staticprivate

Extracts an IPv6 address string from the prefix string.

Definition at line 156 of file vxlan_auxilliary.cc.

uint32_t VxlanRoutingManager::ipv6_prefix_len ( const std::string & prefix_str )

staticprivate

Extracts length of IPv6 subnet address from the prefix string.

Definition at line 145 of file vxlan_auxilliary.cc.

bool VxlanRoutingManager::is_ipv4_string ( const std::string & prefix_str )

staticprivate

Determines whether the address string contains an IPv4 address as substring or not.

Definition at line 104 of file vxlan_auxilliary.cc.

bool VxlanRoutingManager::is_ipv6_string ( const std::string & prefix_str )

staticprivate

Determines whether the address string contains an IPv6 address as substring or not.

Definition at line 108 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::IsBridgeVrf ( const VrfEntry * vrf )

staticprivate

Determines whether the pointer to the VRF instance is of bridge type.

Returns: true if it is routing, otherwise return value is false.

Definition at line 358 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::IsHostRoute	(	const IpAddress &	prefix_ip,
		uint32_t	prefix_len
	)

staticprivate

Determines whether the prefix address and the prefix length point to a host route (/32 for IPv4, /128 for IPv6) or to a subnet route.

Definition at line 233 of file vxlan_auxilliary.cc.

bool VxlanRoutingManager::IsHostRoute ( const EvpnRouteEntry * rt )

staticprivate

Determines whether the given EVPN route points to a host or a subnet.

Definition at line 241 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::IsHostRouteFromLocalSubnet ( const EvpnRouteEntry * rt )

private

Determines whether the given EVPN route is a host one and belongs to a subnet of a local bridge VRF. During the search all subnets in all bridge VRF instances connected to the LR are traversed.

Definition at line 248 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::IsLocalRoute	(	EvpnRouteEntry *	routing_evpn_rt,
		VrfEntry *	bridge_vrf
	)

private

Determines if the given EVPN route is already present in the given VRF.

bool VxlanRoutingManager::IsRoutingVrf ( const VrfEntry * vrf )

staticprivate

Determines whether the pointer to the VRF instance is of routing type.

Returns: true if it is routing, otherwise return value is false.

Definition at line 337 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::IsRoutingVrf	(	const std::string	vrf_name,
		const Agent *	agent
	)

staticprivate

Checks whether the VRF instance with the given name is routing or not.

Returns: true if this VRF is routing, otherwise return value is false.

Definition at line 364 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::IsVrfLocalRoute	(	EvpnRouteEntry *	routing_evpn_rt,
		VrfEntry *	bridge_vrf
	)

private

Determines if the given EVPN route has an interface NH or a composite of interfaces NH that belongs to the given bridge VRF instance.

Definition at line 286 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::IsVxlanAvailable ( const Agent * agent )

staticprivate

Checks whether VxLAN routing manager is enabled or not.

Definition at line 175 of file vxlan_auxilliary.cc.

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template<class ItType >

std::vector< IpAddress > VxlanRoutingManager::ItemNexthopsToVector ( ItType * item )

staticprivate

Templates.

Converts item's (EnetItemType for EVPN / ItemType for Inet) nexthops into the list of IP addresses (IpAddress)

Definition at line 2 of file vxlan_templates.cc.

bool VxlanRoutingManager::LeakRoutesIntoBridgeTables	(	DBTablePartBase *	partition,
		DBEntryBase *	e,
		const boost::uuids::uuid &	uuid,
		const VnEntry *	vn,
		bool	update = `false`
	)

Performs advertisement and deletion of routing routes (with VrfNH) in bridge VRF instances. External tunnels and routes with a prefix that is not present in bridge VRF instance are selected for leaking.

Definition at line 364 of file vxlan_routes_leaking.cc.

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void VxlanRoutingManager::ListAttachedVns ( )

static

Prints all virtual networks attached to logical routers.

Definition at line 1063 of file vxlan_auxilliary.cc.

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MacAddress VxlanRoutingManager::NbComputeMac	(	const Ip4Address &	compute_ip,
		const Agent *	agent
	)

staticprivate

Returns the MAC address for the IP of a given neighbouring compute.

Definition at line 587 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::PrintEvpnTable ( const VrfEntry * const_vrf )

static

Prints EVPN table of the given VRF instance.

Definition at line 950 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::PrintInetTable ( const VrfEntry * const_vrf )

static

Prints IPv4 Inet table of the given VRF instance.

Definition at line 1008 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::Register ( )

Registers handlers for events associated with changes in virtual networks (VnTable class) and VRF instances (VrfTable class).

Definition at line 346 of file vxlan_routing_manager.cc.

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bool VxlanRoutingManager::RouteNotify	(	DBTablePartBase *	partition,
		DBEntryBase *	e
	)

Handler for changes (new/update/delete) in a route (EVPN or Inet). Main entry point for routes leaking.

Definition at line 29 of file vxlan_routes_leaking.cc.

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bool VxlanRoutingManager::RoutePrefixIsEqualTo	(	const EvpnRouteEntry *	route,
		const IpAddress &	prefix_ip,
		const uint32_t	prefix_len
	)

staticprivate

Determines whether route prefix in the EVPN route is equal to the given pair of prefix IP address and length.

Definition at line 211 of file vxlan_auxilliary.cc.

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bool VxlanRoutingManager::RoutePrefixIsEqualTo	(	const InetUnicastRouteEntry *	route,
		const IpAddress &	prefix_ip,
		const uint32_t	prefix_len
	)

staticprivate

Determines whether route prefix of the Inet route is equal to the given pair of prefix IP address and length.

Definition at line 222 of file vxlan_auxilliary.cc.

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void VxlanRoutingManager::RoutingVnNotify	(	const VnEntry *	vn,
		VxlanRoutingVnState *	vn_state
	)

A handler for changes (new/update/delete) in the virtual network from a routing VRF.

Definition at line 596 of file vxlan_routing_manager.cc.

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void VxlanRoutingManager::RoutingVrfDeleteAllRoutes ( VrfEntry * rt_vrf )

private

deletes all routes in EVPN table of routing VRF

Definition at line 542 of file vxlan_routing_manager.cc.

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void VxlanRoutingManager::Shutdown ( )

Unregisters handlers for events associated with changes in virtual networks (VnTable class) and VRF instances (VrfTable class).

Definition at line 363 of file vxlan_routing_manager.cc.

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void VxlanRoutingManager::UpdateSubnetRoute	(	const VrfEntry *	vrf,
		const VrfEntry *	routing_vrf
	)

private

Updates subnet routes (actually, paths with VrfNH) in the given bridge VRF.

Definition at line 856 of file vxlan_routing_manager.cc.

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DBTable::ListenerId VxlanRoutingManager::vmi_listener_id ( ) const

inline

Returns the ID of the listener to changes in the InterfaceTable.

Definition at line 557 of file vxlan_routing_manager.h.

void VxlanRoutingManager::VmiNotify	(	DBTablePartBase *	partition,
		DBEntryBase *	e
	)

Handler for changes (new/update/delete) in a VMI (VmInterface class).

Definition at line 689 of file vxlan_routing_manager.cc.

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DBTable::ListenerId VxlanRoutingManager::vn_listener_id ( ) const

inline

Returns the ID of the listener to changes in the VnTable.

Definition at line 547 of file vxlan_routing_manager.h.

void VxlanRoutingManager::VnNotify	(	DBTablePartBase *	partition,
		DBEntryBase *	e
	)

A handler for changes (new/update/delete) in a virtual network (VnEntry class).

VNNotify Handles routing vrf i.e. VRF meant for doing evpn routing. Addition or deletion of same add/withdraws route imported from bridge vrf in routing vrf. Walk is issued for the routes of bridge vrf's evpn table.

For bridge VRF, only delete of VN is handled here. Add has no operation as add of VN does not give any info on LR/Routing VRF to use. When delete is seen withdraw from the list of bridge list.

Definition at line 383 of file vxlan_routing_manager.cc.

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DBTable::ListenerId VxlanRoutingManager::vrf_listener_id ( ) const

inline

Returns the ID of the listener to changes in the VrfTable.

Definition at line 552 of file vxlan_routing_manager.h.

const VxlanRoutingVrfMapper& VxlanRoutingManager::vrf_mapper ( ) const

inline

Returns the map between LR uuids and associated bridge and routing VRF instances.

Definition at line 563 of file vxlan_routing_manager.h.

void VxlanRoutingManager::VrfNotify	(	DBTablePartBase *	partition,
		DBEntryBase *	e
	)

A handler for changes (new/update/delete) in a VRF instance (VrfEntry class).

Updates (sets or deletes) VxlanRoutingState for the given modified VrfEntry

Definition at line 662 of file vxlan_routing_manager.cc.

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AgentRouteWalker* VxlanRoutingManager::walker ( )

inline

Returns a pointer to the AgentRouteWalkerPtr object.

Definition at line 568 of file vxlan_routing_manager.h.

void VxlanRoutingManager::WhenBridgeInetIntfWasDeleted	(	const InetUnicastRouteEntry *	inet_rt,
		const VrfEntry *	routing_vrf
	)

private

Handles deletion of a route in the EVPN table of the routing VRF instance.

Definition at line 238 of file vxlan_routes_leaking.cc.

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void VxlanRoutingManager::WhenRoutingEvpnRouteWasDeleted	(	const EvpnRouteEntry *	routing_evpn_rt,
		const Peer *	delete_from_peer
	)

private

Handles deletion of a route in the Inet table of the routing VRF instance.

Definition at line 291 of file vxlan_routes_leaking.cc.

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bool VxlanRoutingManager::WithdrawEvpnRouteFromRoutingVrf	(	const VrfEntry *	routing_vrf,
		DBTablePartBase *	partition,
		DBEntryBase *	e
	)

Deletes a given EVPN route from EVPN table of the routing VRF instance.

Definition at line 335 of file vxlan_routes_leaking.cc.

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void VxlanRoutingManager::XmppAdvertiseEvpnInterface	(	EvpnAgentRouteTable *	inet_table,
		const IpAddress &	prefix_ip,
		const int	prefix_len,
		uint32_t	vxlan_id,
		const std::string	vrf_name,
		const RouteParameters &	params,
		const Peer *	bgp_peer
	)

private

Advertises in the EVPN table an interface route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute.

Definition at line 125 of file vxlan_xmpp_routes.cc.

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void VxlanRoutingManager::XmppAdvertiseEvpnRoute	(	const IpAddress &	prefix_ip,
		const int	prefix_len,
		uint32_t	vxlan_id,
		const std::string	vrf_name,
		const RouteParameters &	params,
		const Peer *	bgp_peer
	)

private

Advertises an EVPN route received using XMPP channel.

Definition at line 42 of file vxlan_xmpp_routes.cc.

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void VxlanRoutingManager::XmppAdvertiseEvpnTunnel	(	EvpnAgentRouteTable *	inet_table,
		const IpAddress &	prefix_ip,
		const int	prefix_len,
		uint32_t	vxlan_id,
		const std::string	vrf_name,
		const RouteParameters &	params,
		const Peer *	bgp_peer
	)

private

Advertises in the EVPN table a tunnel route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute.

Definition at line 87 of file vxlan_xmpp_routes.cc.

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void VxlanRoutingManager::XmppAdvertiseInetInterfaceOrComposite	(	InetUnicastAgentRouteTable *	inet_table,
		const IpAddress &	prefix_ip,
		const int	prefix_len,
		const std::string	vrf_name,
		const AgentPath *	path
	)

private

Advertises in the Inet table an interface route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute.

Definition at line 184 of file vxlan_xmpp_routes.cc.

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void VxlanRoutingManager::XmppAdvertiseInetRoute	(	const IpAddress &	prefix_ip,
		const int	prefix_len,
		uint32_t	vxlan_id,
		const std::string	vrf_name,
		const RouteParameters &	params,
		const Peer *	bgp_peer
	)

private

Advertises an Inet route received using XMPP channel.

void VxlanRoutingManager::XmppAdvertiseInetRoute	(	const IpAddress &	prefix_ip,
		const int	prefix_len,
		const std::string	vrf_name,
		const AgentPath *	path
	)

private

Advertises an Inet route received from EVPN table.

Definition at line 64 of file vxlan_xmpp_routes.cc.

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void VxlanRoutingManager::XmppAdvertiseInetTunnel	(	InetUnicastAgentRouteTable *	inet_table,
		const IpAddress &	prefix_ip,
		const int	prefix_len,
		uint32_t	vxlan_id,
		const std::string	vrf_name,
		const RouteParameters &	params,
		const Peer *	bgp_peer
	)

private

Advertises in the Inet table a tunnel route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute.

void VxlanRoutingManager::XmppAdvertiseInetTunnel	(	InetUnicastAgentRouteTable *	inet_table,
		const IpAddress &	prefix_ip,
		const int	prefix_len,
		const std::string	vrf_name,
		const AgentPath *	path
	)

private

Advertises in the Inet table a tunnel route that arrived via XMPP channel. Must be called only from XmppAdvertiseInetRoute.

Definition at line 154 of file vxlan_xmpp_routes.cc.

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Friends And Related Function Documentation

friend class AgentXmppChannel

friend

Allows AgentXmppChannel to use private members of this class.

Definition at line 621 of file vxlan_routing_manager.h.

friend class AgentXmppChannelVxlanInterface

friend

Allows access to Xmpp advertisement functions via external class.

Definition at line 624 of file vxlan_routing_manager.h.

friend class ControllerEcmpRoute

friend

Allows ControllerEcmpRoute to use private members of this class.

Definition at line 618 of file vxlan_routing_manager.h.

friend class MetadataProxy

friend

Allows MetadataProxy to use private members of this class.

Definition at line 631 of file vxlan_routing_manager.h.

friend class VxlanRoutingRouteWalker

friend

Friends declarations.

Allows access to private members for the VxlanRoutingRouteWalker class.

Definition at line 615 of file vxlan_routing_manager.h.

friend class VxlanRoutingVrfMapper

friend

Allows VxlanRoutingVrfMapper to use private members of this class.

Definition at line 628 of file vxlan_routing_manager.h.

Member Data Documentation

Agent* VxlanRoutingManager::agent_

private

A pointer to the Agent instance.

Definition at line 584 of file vxlan_routing_manager.h.

uint32_t VxlanRoutingManager::loc_sequence_ = 0

staticprivate

An always increasing counter for new paths (used to signal controoler about new routes).

Definition at line 605 of file vxlan_routing_manager.h.

tbb::mutex VxlanRoutingManager::mutex_

staticprivate

A mutex object to prevent simultaneous update of local sequence number property.

Definition at line 609 of file vxlan_routing_manager.h.

const Peer * VxlanRoutingManager::routing_vrf_interface_peer_ = NULL

staticprivate

Internal data of this class.

A pointer to the Peer where all interface / composite of interfaces routes in routing VRF are linked to.

Definition at line 578 of file vxlan_routing_manager.h.

const Peer * VxlanRoutingManager::routing_vrf_vxlan_bgp_peer_ = NULL

staticprivate

A pointer to the Peer where all BGP routes are stored.

Definition at line 581 of file vxlan_routing_manager.h.

DBTable::ListenerId VxlanRoutingManager::vmi_listener_id_

private

An ID of the listener to changes in InterfaceTable.

Definition at line 597 of file vxlan_routing_manager.h.

DBTable::ListenerId VxlanRoutingManager::vn_listener_id_

private

An ID of the listener to changes in VnTable.

Definition at line 591 of file vxlan_routing_manager.h.

DBTable::ListenerId VxlanRoutingManager::vrf_listener_id_

private

An ID of the listener to changes in VrfTable.

Definition at line 594 of file vxlan_routing_manager.h.

VxlanRoutingVrfMapper VxlanRoutingManager::vrf_mapper_

private

A map between LR uuids and associated bridge and routing VRF instances.

Definition at line 601 of file vxlan_routing_manager.h.

AgentRouteWalkerPtr VxlanRoutingManager::walker_

private

A pointer to the walker to loop over INET tables in bridge VRF instances.

Definition at line 588 of file vxlan_routing_manager.h.

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

Public Member Functions

Static Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation