Source: ../../rib/rt_tab_pol_redist.hh
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// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
// vim:set sts=4 ts=8:
// Copyright (c) 2001-2005 International Computer Science Institute
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software")
// to deal in the Software without restriction, subject to the conditions
// listed in the XORP LICENSE file. These conditions include: you must
// preserve this copyright notice, and you cannot mention the copyright
// holders in advertising related to the Software without their permission.
// The Software is provided WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. This
// notice is a summary of the XORP LICENSE file; the license in that file is
// legally binding.
// $XORP: xorp/rib/rt_tab_pol_redist.hh,v 1.4 2005/03/25 02:54:23 pavlin Exp $
#ifndef __RIB_RT_TAB_POL_REDIST_HH__
#define __RIB_RT_TAB_POL_REDIST_HH__
#include "rt_tab_base.hh"
#include "libxorp/xorp.h"
#include "libxorp/utils.hh"
#include "libxorp/eventloop.hh"
#include "libxipc/xrl_std_router.hh"
#include "policy/backend/policy_redist_map.hh"
#include "xrl/interfaces/policy_redist4_xif.hh"
#include "xrl/interfaces/policy_redist6_xif.hh"
/**
* @short This table redistributes routes to protocols according to policytags.
*
* Based on the policy-tags in a route, this table will request a protocol to
* start or end a redistribution of a route, depending whether the route is
* being added or deleted.
*/
template<class A>
class PolicyRedistTable : public RouteTable<A> {
public:
static const string table_name;
PolicyRedistTable(RouteTable<A>* parent, XrlRouter& rtr, PolicyRedistMap&,
bool multicast);
int add_route(const IPRouteEntry<A>& route, RouteTable<A>* caller);
int delete_route(const IPRouteEntry<A>* route, RouteTable<A>* caller);
const IPRouteEntry<A>* lookup_route(const IPNet<A>& net) const;
const IPRouteEntry<A>* lookup_route(const A& addr) const;
RouteRange<A>* lookup_route_range(const A& addr) const;
TableType type() const { return POLICY_REDIST_TABLE; }
RouteTable<A>* parent() { return _parent; }
void replumb(RouteTable<A>* old_parent, RouteTable<A>* new_parent);
string str() const;
void xrl_cb(const XrlError&, string);
/**
* If policy-tags of a route changed, this table will need to figure out
* which protocol should stop advertising a route, and which protocol
* should continue or start.
*
* @param route the route with its new policy tags.
* @param prevtags the previous policytags of the route.
* @param caller the table which invoked this method.
*/
void replace_policytags(const IPRouteEntry<A>& route,
const PolicyTags& prevtags,
RouteTable<A>* caller);
private:
typedef set<string> Set;
/**
* Start a redistribution of a route.
*
* @param route route to redistribute.
* @param protos the set of protocols which should do the redistribution.
*/
void add_redist(const IPRouteEntry<A>& route, const Set& protos);
/**
* End a route redistribution.
*
* @param route the route which should no longer be redistributed.
* @param protos the protocols which should stop advertising the route.
*/
void del_redist(const IPRouteEntry<A>& route, const Set& protos);
/**
* Start a route redistribution.
*
* @param route route to be redistributed.
* @param proto protocol which should advertise route.
*/
void add_redist(const IPRouteEntry<A>& route, const string& proto);
/**
* End a route redistribution.
*
* @param route route which should no longer be redistributed.
* @param proto protocol which should stop advertising the route.
*/
void del_redist(const IPRouteEntry<A>& route, const string& proto);
RouteTable<A>* _parent;
XrlRouter& _xrl_router;
EventLoop& _eventloop;
PolicyRedistMap& _redist_map;
XrlPolicyRedist4V0p1Client _redist4_client;
XrlPolicyRedist6V0p1Client _redist6_client;
bool _multicast;
};
#endif // __RIB_RT_TAB_POL_REDIST_HH__
Generated by: pavlin on possum.icir.org on Thu Mar 9 04:43:48 2006, using kdoc $.