class BGPVarRW Allows reading an modifying a BGP route. More...

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Public Types

• enum { VAR_NETWORK4 = VAR_PROTOCOL, VAR_NEXTHOP4, VAR_NETWORK6, VAR_NEXTHOP6, VAR_ASPATH, VAR_ORIGIN, VAR_NEIGHBOR, VAR_LOCALPREF, VAR_COMMUNITY, VAR_MED, VAR_MED_REMOVE, VAR_AGGREGATE_PREFIX_LEN, VAR_AGGREGATE_BRIEF_MODE, VAR_WAS_AGGREGATED, VAR_BGPMAX }

Public Methods

•  BGPVarRW (const string& name)
• virtual  ~BGPVarRW ()
• void  attach_route (const InternalMessage<A>& rtmsg, bool no_modify)
• InternalMessage<A>*  filtered_message ()
• Element*  single_read (const Id& id)
• void  single_write (const Id& id, const Element& e)
• void  end_write ()
• bool  modified ()
• virtual string  more_tracelog ()
• virtual Element*  read_neighbor ()
• Element*  read_neighbor_base_cb ()
• Element*  read_policytags ()
• Element*  read_filter_im ()
• Element*  read_filter_sm ()
• Element*  read_filter_ex ()
• Element*  read_network4 ()
• Element*  read_network6 ()
• Element*  read_nexthop4 ()
• Element*  read_nexthop6 ()
• Element*  read_aspath ()
• Element*  read_origin ()
• Element*  read_localpref ()
• Element*  read_community ()
• Element*  read_med ()
• Element*  read_med_remove ()
• Element*  read_aggregate_prefix_len ()
• Element*  read_aggregate_brief_mode ()
• Element*  read_was_aggregated ()
• void  write_filter_im (const Element& e)
• void  write_filter_sm (const Element& e)
• void  write_filter_ex (const Element& e)
• void  write_policytags (const Element& e)
• void  write_nexthop4 (const Element& e)
• void  write_nexthop6 (const Element& e)
• void  write_aspath (const Element& e)
• void  write_origin (const Element& e)
• void  write_aggregate_prefix_len (const Element& e)
• void  write_aggregate_brief_mode (const Element& e)
• void  write_was_aggregated (const Element& e)
• void  write_localpref (const Element& e)
• void  write_community (const Element& e)
• void  write_med (const Element& e)
• void  write_med_remove (const Element& e)

Public Members

• typedef Element*  (*BGPVarRW::ReadCallback) ()
• typedef void  (*BGPVarRW::WriteCallback) (const Element& e)

Protected Members

• ElementFactory _ef
• string _name

Detailed Description

If the route is modified, the user is responsible for retrieving the filtered message and deleting it.

This varrw allows for routes to remain untouched even though they are filtered. This is useful in order to check if a route will be accepted or rejected, without caring about its modifications.

Parameters:

[virtual]

Attach a route to the varrw.

Parameters:

Caller owns the message [responsible for delete]. Calling multiple times will always return the same message, not a copy.

Returns: the modified message. Null if no changes were made.

Reimplemented from SingleVarRW.

Reimplemented from SingleVarRW.

Reimplemented from SingleVarRW.

If a route is modified, the caller may obtain it via the filtered_message call.

Returns: true if route was modified. False otherwise.

[virtual]

Output basic BGP specific information.

Returns: BGP trace based on verbosity level returned from trace().

[virtual]

Reads the neighbor variable. This is different on input/output branch.

Returns: the neighbor variable.

Callback wrapper used to call the virtual read_neighbor() method.

Returns: the neighbor variable.

[protected]

[protected]