// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-// Copyright (c) 2001-2003 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/rtrmgr/tools/show_interfaces.hh,v 1.4 2003/10/24 20:48:52 pavlin Exp $#ifndef __RIB_VIFMANAGER_HH__#define __RIB_VIFMANAGER_HH__#include <map>#include "libxorp/vif.hh"#include "libxipc/xrl_router.hh"#include "xrl/interfaces/fea_ifmgr_xif.hh"#define IF_EVENT_CREATED 1#define IF_EVENT_DELETED 2#define IF_EVENT_CHANGED 3class InterfaceMonitor {public:    /**     * The state of the InterfaceMonitor.  It it hasn't yet successfully     * registered with the FEA, it will be in INITIALIZING state.  If     * it has permanently failed to register with the FEA it will be     * in FAILED state.  Otherwise it should be in READY state.     */    enum State { INITIALIZING, READY, FAILED };    /**     * InterfaceMonitor constructor     *     * @param xrl_rtr this process's XRL router.     * @param eventloop this process's EventLoop.     */    InterfaceMonitor(XrlRouter& xrl_rtr, EventLoop& eventloop);    /**     * InterfaceMonitor destructor     */    ~InterfaceMonitor();    /**     * Start the process of registering with the FEA, etc     */    void start();    /**     * @returns the state of the InterfaceMonitor.      * @see InterfaceMonitor::State     */    State state() const { return _state; }    /**     * interface_update is called when receiving an XRL from the FEA     * indicating that a physical interface on the router has been added,     * deleted, or reconfigured      *     * @param ifname the name of the physical interface that changed.     * @param event the event that occured. One of IF_EVENT_CREATED,     * IF_EVENT_DELETED, or IF_EVENT_CHANGED     */    void interface_update(const string& ifname,			  const uint32_t& event);    /**     * vif_update is called when receiving an XRL from the FEA     * indicating that a virtual interface on the router has been added,     * deleted, or reconfigured      *     * @param ifname the name of the physical interface on which the     * virtual interface resides.     * @param vifname the name of the virtual interface that changed.     * @param event the event that occured. One of IF_EVENT_CREATED,     * IF_EVENT_DELETED, or IF_EVENT_CHANGED      */    void vif_update(const string& ifname,		    const string& vifname, const uint32_t& event);    /**     * vifaddr4_update is called when receiving an XRL from the FEA     * indicating that a virtual interface has undergone an address     * change.  An IPv4 address (and associated prefix length) has     * been added, deleted, or reconfigured on this VIF.     *     * @param ifname the name of the interface containing the VIF     * @param vifname the name of the VIF on which the address change occured.     * @param addr the address that was added or deleted.     * @param event the event that occured. One of IF_EVENT_CREATED or     * IF_EVENT_DELETED      */    void vifaddr4_update(const string& ifname,			 const string& vifname,			 const IPv4& addr,			 const uint32_t& event);    /**     * vifaddr6_update is called when receiving an XRL from the FEA     * indicating that a virtual interface has undergone an address     * change.  An IPv6 address (and associated prefix length) has     * been added, deleted, or reconfigured on this VIF.     *     * @param ifname the name of the interface containing the VIF     * @param vifname the name of the VIF on which the address change occured.     * @param addr the address that was added or deleted.     * @param event the event that occured. One of IF_EVENT_CREATED or     * IF_EVENT_DELETED      */    void vifaddr6_update(const string& ifname,			 const string& vifname,			 const IPv6& addr,			 const uint32_t& event);    void print_results() const;private:    void clean_out_old_state();    void clean_out_old_state_done(const XrlError& e);    void register_if_spy();    void register_if_spy_done(const XrlError& e);    void interface_names_done(const XrlError& e, const XrlAtomList* alist);    void vif_names_done(const XrlError& e, const XrlAtomList* alist,			string ifname);    void get_vifaddr4_done(const XrlError& e, const XrlAtomList* alist,			   string ifname, string vifname);    void interface_deleted(const string& ifname);    void vif_deleted(const string& ifname, const string& vifname);    void vif_created(const string& ifname, const string& vifname);    void vifaddr4_created(const string& ifname, const string& vifname,			  const IPv4& addr);    void vifaddr4_done(const XrlError& e, const uint32_t* prefix_len,		       string ifname, string vifname,		       IPv4 addr);    void get_flags4_done(const XrlError& e, 			 const bool *enabled,			 const bool *broadcast,			 const bool *loopback,			 const bool *point_to_point,			 const bool *multicast,			 string ifname, string vifname, IPv4 addr);    void vifaddr6_created(const string& ifname, const string& vifname,			  const IPv6& addr);    void vifaddr6_done(const XrlError& e, const uint32_t* prefix_len,		       string ifname, string vifname,		       IPv6 addr);    void vifaddr4_deleted(const string& ifname, const string& vifname,			  const IPv4& addr);    void vifaddr6_deleted(const string& ifname, const string& vifname,			  const IPv6& addr);    XrlRouter &_xrl_rtr;    EventLoop &_eventloop;    XrlIfmgrV0p1Client _ifmgr_client;    XorpTimer _register_retry_timer;    State _state;    int _register_retry_counter;    /* the following variables keep track of how many answers we're       still expecting from various pipelined queries to the FEA */    int _interfaces_remaining;    int _vifs_remaining;    int _addrs_remaining;    int _flags_remaining;    map <string, Vif*> _vifs_by_name;    multimap <string, Vif*> _vifs_by_interface;};#endif // __RIB_VIFMANAGER_HH__