xorp

OriginAttribute Class Reference

OriginAttribute has a payload of size 1 containing the origin type. More...

#include <path_attribute.hh>

Inheritance diagram for OriginAttribute:
PathAttribute NONCOPYABLE

List of all members.

Public Member Functions

 OriginAttribute (OriginType t)
 OriginAttribute.
 OriginAttribute (const uint8_t *d) throw (CorruptMessage)
PathAttributeclone () const
 Make a copy of the current attribute.
string str () const
 We need to encode an attribute to send to a peer.
OriginType origin () const
bool encode (uint8_t *buf, size_t &wire_size, const BGPPeerData *peerdata) const
 encode a path attribute.

Private Attributes

OriginType _origin

Detailed Description

OriginAttribute has a payload of size 1 containing the origin type.


Member Function Documentation

PathAttribute * OriginAttribute::clone ( ) const [virtual]

Make a copy of the current attribute.

The derived class should use new to generate a copy of itself. The wire format representation will not be used by the caller.

Implements PathAttribute.

bool OriginAttribute::encode ( uint8_t *  buf,
size_t &  wire_size,
const BGPPeerData peerdata 
) const [virtual]

encode a path attribute.

In a sane world, we'd use a virtual function for this. But we store so many path attributes that we can't afford the overhead of a virtual function table for them, so we have to do this the hard way

XXX THE ABOVE IS NO LONGER THE CASE. WE SHOULD REWRITE THIS TO USE VIRTUAL FUNCTIONS

Implements PathAttribute.

string OriginAttribute::str ( ) const [virtual]

We need to encode an attribute to send to a peer.

However we only have the canonically encoded byte stream data for it. Sometimes that is fine, and we should just send that; sometimes we need to decode and re-encode for this specific peer.

Reimplemented from PathAttribute.


The documentation for this class was generated from the following files:
 All Classes Namespaces Functions Variables Typedefs Enumerations