Source: ../../rib/rib_manager.hh
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// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
// Copyright (c) 2001-2004 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/rib_manager.hh,v 1.26 2004/06/10 22:41:39 hodson Exp $
#ifndef __RIB_RIB_MANAGER_HH__
#define __RIB_RIB_MANAGER_HH__
#include "libxorp/xorp.h"
#include "libxorp/status_codes.h"
#include "libproto/proto_state.hh"
#include "libxipc/xrl_std_router.hh"
#include "rib.hh"
#include "rib_client.hh"
#include "register_server.hh"
#include "vifmanager.hh"
#include "xrl_target.hh"
class EventLoop;
/**
* @short Main top-level class containing RIBs and main eventloop.
*
* The single RibManager class instance is the top-level class in the
* RIB process from which everything else is built and run. It
* contains the four RIBs for IPv4 unicast routes, IPv4 multicast
* routes, IPv6 unicast routes and IPv6 multicast routes. It also
* contains the RIB's main eventloop.
*/
class RibManager : public ProtoState {
public:
/**
* RibManager constructor
*
* @param eventloop the event loop to user.
* @param xrl_std_router the XRL router to use.
* @param fea_target the FEA XRL target name.
*/
RibManager(EventLoop& eventloop, XrlStdRouter& xrl_std_router,
const string& fea_target);
/**
* RibManager destructor
*/
~RibManager();
/**
* Start operation.
*
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int start();
/**
* Stop operation.
*
* Gracefully stop the RIB.
*
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int stop();
/**
* Periodic Status Update
*
* @return true to reschedule next status check.
*/
bool status_updater();
/**
* Check status of RIB process.
*
* @return the process status code.
* @see ProcessStatus.
*/
ProcessStatus status(string& reason) const
{
reason = _status_reason;
return _status_code;
}
/**
* new_vif is called to inform all the RIBs that a new virtual
* interface has been created.
*
* @param vifname the name of the new VIF.
* @param vif the Vif class instance holding information about the
* new VIF.
* @param err reference to string in which to store the
* human-readable error message in case anything goes wrong. Used
* for debugging purposes.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int new_vif(const string& vifname, const Vif& vif, string& err);
/**
* delete_vif is called to inform all the RIBs that a virtual
* interface that they previously knew about has been deleted.
*
* @param vifname the name of the VIF that was deleted.
* @param err reference to string in which to store the
* human-readable error message in case anything goes wrong. Used
* for debugging purposes.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int delete_vif(const string& vifname, string& err);
/**
* Set the vif flags of a configured vif.
*
* @param vifname the name of the vif.
* @param is_pim_register true if the vif is a PIM Register interface.
* @param is_p2p true if the vif is point-to-point interface.
* @param is_loopback true if the vif is a loopback interface.
* @param is_multicast true if the vif is multicast capable.
* @param is_broadcast true if the vif is broadcast capable.
* @param is_up true if the underlying vif is UP.
* @param err reference to string in which to store the
* human-readable error message in case anything goes wrong. Used
* for debugging purposes.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int set_vif_flags(const string& vifname,
bool is_p2p,
bool is_loopback,
bool is_multicast,
bool is_broadcast,
bool is_up,
string& err);
/**
* add_vif_address is called to inform all the RIBs that a new IPv4
* address has been added to a virtual interface.
*
* @param vifname the name of the VIF that the address was added to.
* @param addr the new address.
* @param subnet the subnet (masked address) that the new address
* resides on.
* @param broadcast the broadcast address to add.
* @param peer the peer address to add.
* @param err reference to string in which to store the
* human-readable error message in case anything goes wrong. Used
* for debugging purposes.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int add_vif_address(const string& vifname,
const IPv4& addr,
const IPv4Net& subnet,
const IPv4& broadcast_addr,
const IPv4& peer_addr,
string& err);
/**
* delete_vif_address is called to inform all the RIBs that an IPv4
* address that they previously know about has been deleted from a
* specific VIF.
*
* @param vifname the name of the VIF that the address was deleted from.
* @param addr the address that was deleted.
* @param err reference to string in which to store the
* human-readable error message in case anything goes wrong. Used
* for debugging purposes.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int delete_vif_address(const string& vifname,
const IPv4& addr,
string& err);
/**
* add_vif_address is called to inform all the RIBs that a new IPv6
* address has been added to a virtual interface.
*
* @param vifname the name of the VIF that the address was added to.
* @param addr the new address.
* @param subnet the subnet (masked address) that the new address
* resides on.
* @param peer the peer address to add.
* @param err reference to string in which to store the
* human-readable error message in case anything goes wrong. Used
* for debugging purposes.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int add_vif_address(const string& vifname,
const IPv6& addr,
const IPv6Net& subnet,
const IPv6& peer,
string& err);
/**
* delete_vif_address is called to inform all the RIBs that an IPv6
* address that they previously know about has been deleted from a
* specific VIF.
*
* @param vifname the name of the VIF that the address was deleted from.
* @param addr the address that was deleted.
* @param err reference to string in which to store the
* human-readable error message in case anything goes wrong. Used
* for debugging purposes.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int delete_vif_address(const string& vifname,
const IPv6& addr,
string& err);
/**
* Find a RIB client.
*
* Find a RIB client for a given target name, address family, and
* unicast/multicast flags.
*
* @param target_name the target name of the RIB client.
* @param family the address family (AF_INET or AF_INET6 for
* IPv4 and IPv6 respectively).
* @param unicast true if a client for the unicast RIB.
* @param multicast true if a client for the multicast RIB.
* @return a pointer to a valid @ref RibClient if found, otherwise NULL.
*/
RibClient* find_rib_client(const string& target_name, int family,
bool unicast, bool multicast);
/**
* Add a RIB client.
*
* Add a RIB client for a given target name, address family, and
* unicast/multicast flags.
*
* @param target_name the target name of the RIB client.
* @param family the address family (AF_INET or AF_INET6 for
* IPv4 and IPv6 respectively).
* @param unicast true if a client for the unicast RIB.
* @param multicast true if a client for the multicast RIB.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int add_rib_client(const string& target_name, int family,
bool unicast, bool multicast);
/**
* Delete a RIB client.
*
* Delete a RIB client for a given target name, address family, and
* unicast/multicast flags.
*
* @param target_name the target name of the RIB client.
* @param family the address family (AF_INET or AF_INET6 for
* IPv4 and IPv6 respectively).
* @param unicast true if a client for the unicast RIB.
* @param multicast true if a client for the multicast RIB.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int delete_rib_client(const string& target_name, int family,
bool unicast, bool multicast);
/**
* Enable a RIB client.
*
* Enable a RIB client for a given target name, address family, and
* unicast/multicast flags.
*
* @param target_name the target name of the RIB client.
* @param family the address family (AF_INET or AF_INET6 for
* IPv4 and IPv6 respectively).
* @param unicast true if a client for the unicast RIB.
* @param multicast true if a client for the multicast RIB.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int enable_rib_client(const string& target_name, int family,
bool unicast, bool multicast);
/**
* Disable a RIB client.
*
* Disable a RIB client for a given target name, address family, and
* unicast/multicast flags.
*
* @param target_name the target name of the RIB client.
* @param family the address family (AF_INET or AF_INET6 for
* IPv4 and IPv6 respectively).
* @param unicast true if a client for the unicast RIB.
* @param multicast true if a client for the multicast RIB.
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
int disable_rib_client(const string& target_name, int family,
bool unicast, bool multicast);
/**
* Make some errors we'd normally mask fatal. Should be used for
* testing only.
*/
void make_errors_fatal();
/**
* Register Interest in an XRL target so we can monitor process
* births and deaths and clean up appropriately when things die.
*
* @param target_class the XRL Target Class we're interested in.
*/
void register_interest_in_target(const string& target_class);
/**
* Called in response to registering interest in an XRL target
*
* @param e XRL Response code.
*/
void register_interest_in_target_done(const XrlError& e);
/**
* Target Death is called when an XRL target that we've registered
* an interest in dies.
*
* @param target_class the XRL Class of the target that died.
* @param target_instance the XRL Class Instance of the target that died.
*/
void target_death(const string& target_class,
const string& target_instance);
/**
* Add Route Redistributor that generates updates with redist4
* XRL interface.
*
* @param target_name XRL target to receive redistributed routes.
* @param from_protocol protocol routes are redistributed from.
* @param unicast apply to unicast rib.
* @param multicast apply to multicast rib.
* @param cookie cookie passed in route redistribution XRLs.
* @param is_xrl_transaction_output if true the add/delete route XRLs
* are grouped into transactions.
*
* @return XORP_OK on success, XORP_ERROR on failure.
*/
int add_redist_xrl_output4(const string& target_name,
const string& from_protocol,
bool unicast,
bool multicast,
const string& cookie,
bool is_xrl_transaction_output);
/**
* Add Route Redistributor that generates updates with redist6
* XRL interface.
*
* @param target_name XRL target to receive redistributed routes.
* @param from_protocol protocol routes are redistributed from.
* @param unicast apply to unicast rib.
* @param multicast apply to multicast rib.
* @param cookie cookie passed in route redistribution XRLs.
* @param is_xrl_transaction_output if true the add/delete route XRLs
* are grouped into transactions.
*
* @return XORP_OK on success, XORP_ERROR on failure.
*/
int add_redist_xrl_output6(const string& target_name,
const string& from_protocol,
bool unicast,
bool multicast,
const string& cookie,
bool is_xrl_transaction_output);
/**
* Remove Route Redistributor that generates updates with redist4
* XRL interface.
*
* @param target_name XRL target to receive redistributed routes.
* @param from_protocol protocol routes are redistributed from.
* @param unicast apply to unicast rib.
* @param multicast apply to multicast rib.
* @param cookie cookie passed in route redistribution XRLs.
* @param is_xrl_transaction_output if true the add/delete route XRLs
* are grouped into transactions.
*
* @return XORP_OK on success, XORP_ERROR on failure.
*/
int delete_redist_xrl_output4(const string& target_name,
const string& from_protocol,
bool unicast,
bool multicast,
const string& cookie,
bool is_xrl_transaction_output);
/**
* Remove Route Redistributor that generates updates with redist6
* XRL interface.
*
* @param target_name XRL target to receive redistributed routes.
* @param from_protocol protocol routes are redistributed from.
* @param unicast apply to unicast rib.
* @param multicast apply to multicast rib.
* @param cookie cookie passed in route redistribution XRLs.
* @param is_xrl_transaction_output if true the add/delete route XRLs
* are grouped into transactions.
*
* @return XORP_OK on success, XORP_ERROR on failure.
*/
int delete_redist_xrl_output6(const string& target_name,
const string& from_protocol,
bool unicast,
bool multicast,
const string& cookie,
bool is_xrl_transaction_output);
private:
/**
* Select the appropriate list of RIB clients.
*
* Select a list of RIB clients for a given address family and
* unicast/multicast flags.
*
* @param family the address family (AF_INET or AF_INET6 for
* IPv4 and IPv6 respectively).
* @param unicast true if we want to select the list of RIB clients
* for the unicast RIB.
* @param multicast true if we want to select the list of RIB clients
* for the multicast RIB.
* @return a pointer to the appropriate list if found, otherwise NULL.
*/
list<RibClient* >* select_rib_clients_list(int family, bool unicast,
bool multicast);
ProcessStatus _status_code;
string _status_reason;
EventLoop& _eventloop; // The event loop to use
XrlStdRouter& _xrl_router; // The XRL router to use
list<RibClient* > _urib4_clients_list; // The list of IPv4 URIB clients
list<RibClient* > _mrib4_clients_list; // The list of IPv4 MRIB clients
list<RibClient* > _urib6_clients_list; // The list of IPv6 URIB clients
list<RibClient* > _mrib6_clients_list; // The list of IPv6 MRIB clients
RegisterServer _register_server; // To notify clients about route change
RIB<IPv4> _urib4; // The IPv4 unicast RIB
RIB<IPv4> _mrib4; // The IPv4 multicast RIB
RIB<IPv6> _urib6; // The IPv6 unicast RIB
RIB<IPv6> _mrib6; // The IPv6 multicast RIB
VifManager _vif_manager; // The VIF manager
XrlRibTarget _xrl_rib_target;
set<string> _targets_of_interest; // Monitored XRL targets
XorpTimer _status_update_timer; // Timer for periodic checks of RIB status
const string _fea_target;
};
#endif // __RIB_RIB_MANAGER_HH__
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