PeerHandler Class Reference

PeerHandler's job is primarily format conversion. More...

#include <peer_handler.hh>

Inheritance diagram for PeerHandler:

List of all members.

Public Member Functions
	PeerHandler (const string &peername, BGPPeer *peer, BGPPlumbing *plumbing_unicast, BGPPlumbing *plumbing_multicast)
void	stop ()
void	peering_went_down ()
void	peering_came_up ()
bool	peering_is_up () const
int	process_update_packet (UpdatePacket *p)
	process_update_packet is called when an update packet has been received by this peer
template<typename A >
bool	add (const UpdatePacket *p, ref_ptr< FastPathAttributeList< IPv4 > > &original_pa_list, ref_ptr< FastPathAttributeList< A > > &pa_list, Safi safi)
	Given an update packet find all the NLRIs with <AFI,SAFI> specified and inject one by one into the plumbing.
template<typename A >
bool	withdraw (const UpdatePacket *p, ref_ptr< FastPathAttributeList< IPv4 > > &original_pa_list, Safi safi)
	Given an update packet find all the WITHDRAWs with <AFI,SAFI> specified and inject one by on into the plumbing.
template<typename A >
bool	multiprotocol (Safi safi, BGPPeerData::Direction d) const
virtual int	start_packet ()
	add_route and delete_route are called by the plumbing to propagate a route *to* the peer.
virtual int	add_route (const SubnetRoute< IPv4 > &rt, FPAList4Ref &pa_list, bool ibgp, Safi safi)
virtual int	replace_route (const SubnetRoute< IPv4 > &old_rt, bool old_ibgp, const SubnetRoute< IPv4 > &new_rt, bool new_ibgp, FPAList4Ref &pa_list, Safi safi)
virtual int	delete_route (const SubnetRoute< IPv4 > &rt, FPAList4Ref &pa_list, bool new_ibgp, Safi safi)
virtual PeerOutputState	push_packet ()
virtual void	output_no_longer_busy ()
AsNum	my_AS_number () const
	The AS number of this router.
AsNum	AS_number () const
	The AS number of the peer router.
bool	use_4byte_asnums () const
	Do we use 4-byte AS numbers with this peer?
virtual PeerType	get_peer_type () const
const string &	peername () const
bool	ibgp () const
virtual bool	originate_route_handler () const
virtual uint32_t	get_unique_id () const
virtual const IPv4 &	id () const
uint32_t	neighbour_address () const
const IPv4 &	my_v4_nexthop () const
string	get_local_addr () const
	Get the local address as a string in numeric form.
string	get_peer_addr () const
	Get the peer address as a string in numeric form.
bool	get_peer_addr (IPv4 &addr) const
uint32_t	get_prefix_count () const
virtual EventLoop &	eventloop () const
template<>
bool	add (const UpdatePacket *p, ref_ptr< FastPathAttributeList< IPv4 > > &original_pa_list, ref_ptr< FastPathAttributeList< IPv4 > > &pa_list, Safi safi)
Protected Attributes
BGPPlumbing *	_plumbing_unicast
BGPPlumbing *	_plumbing_multicast
Private Attributes
string	_peername
BGPPeer *	_peer
bool	_peering_is_up
UpdatePacket *	_packet
uint32_t	_nlri_total
uint32_t	_packets

---

Detailed Description

PeerHandler's job is primarily format conversion.

But it also servers as a handle to tie together the input and output sides of a RIB.

---

Member Function Documentation

template<typename A >

bool PeerHandler::add	(	const UpdatePacket *	p,
		ref_ptr< FastPathAttributeList< IPv4 > > &	original_pa_list,
		ref_ptr< FastPathAttributeList< A > > &	pa_list,
		Safi	safi
	)

Given an update packet find all the NLRIs with <AFI,SAFI> specified and inject one by one into the plumbing.

Parameters:

p	- packet to tease apart
safi	- Subsequent address family identifier

Returns:

true if an <AFI,SAFI> was found.

bool PeerHandler::get_peer_addr

(

IPv4 &

addr

)

const [inline]

Parameters:

addr	fill in the address if this is IPv4.

Returns:

true if the peer address is IPv4.

uint32_t PeerHandler::get_prefix_count

(

)

const

Returns:

the number of prefixes in the RIB-IN.

virtual uint32_t PeerHandler::get_unique_id

(

)

const [inline, virtual]

Returns:

an ID that is unique per peer for use in decision.

Reimplemented in RibIpcHandler, and AggregationHandler.

virtual const IPv4& PeerHandler::id

(

)

const [inline, virtual]

Returns:

the neighbours BGP ID as an integer for use by decision.

Reimplemented in RibIpcHandler.

uint32_t PeerHandler::neighbour_address

(

)

const [inline]

Returns:

the neighbours IP address an as integer for use by decision.

virtual bool PeerHandler::originate_route_handler

(

)

const [inline, virtual]

Returns:

true if this is the originate route handler.

Reimplemented in RibIpcHandler, and AggregationHandler.

bool PeerHandler::withdraw< IPv4 >	(	const UpdatePacket *	p,
		ref_ptr< FastPathAttributeList< IPv4 > > &	original_pa_list,
		Safi	safi
	)

Given an update packet find all the WITHDRAWs with <AFI,SAFI> specified and inject one by on into the plumbing.

Parameters:

p	- packet to tease apart
safi	- Subsequent address family identifier

Returns:

true if an <AFI,SAFI> was found.

---

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

• /home/greearb/git/xorp.ct.github/xorp/bgp/peer_handler.hh
• /home/greearb/git/xorp.ct.github/xorp/bgp/peer_handler.cc