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bgp_server.h
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bgp_server.h
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#ifndef SRC_BGP_BGP_SERVER_H_
#define SRC_BGP_BGP_SERVER_H_
#include <tbb/spin_rw_mutex.h>
#include <boost/asio/ip/tcp.hpp>
#include <boost/dynamic_bitset.hpp>
#include <boost/scoped_ptr.hpp>
#include <map>
#include <set>
#include <string>
#include <vector>
#include "bgp/bgp_common.h"
#include "db/db.h"
#include "io/tcp_server.h"
#include "io/tcp_session.h"
#include "net/address.h"
class AsPathDB;
class BgpAttrDB;
class BgpConditionListener;
class BgpConfigManager;
class BgpOListDB;
class BgpPeer;
class BgpSessionManager;
class CommunityDB;
class EdgeDiscoveryDB;
class EdgeForwardingDB;
class ExtCommunityDB;
class LifetimeActor;
class LifetimeManager;
class OriginVnPathDB;
class PmsiTunnelDB;
class PeerRibMembershipManager;
class RoutePathReplicator;
class RoutingInstanceMgr;
class RTargetGroupMgr;
class SchedulingGroupManager;
class ServiceChainMgr;
class StaticRouteMgr;
class BgpServer {
public:
typedef boost::function<void(as_t, as_t)> ASNUpdateCb;
typedef boost::function<void(Ip4Address)> IdentifierUpdateCb;
typedef boost::function<void(BgpPeer *)> VisitorFn;
typedef std::set<StaticRouteMgr *> StaticRouteMgrList;
explicit BgpServer(EventManager *evm);
virtual ~BgpServer();
virtual std::string ToString() const;
virtual bool IsPeerCloseGraceful();
int RegisterPeer(BgpPeer *peer);
void UnregisterPeer(BgpPeer *peer);
BgpPeer *FindPeer(const std::string &name);
void Shutdown();
void VisitBgpPeers(BgpServer::VisitorFn) const;
// accessors
BgpSessionManager *session_manager() { return session_mgr_; }
SchedulingGroupManager *scheduling_group_manager() {
return sched_mgr_.get();
}
LifetimeManager *lifetime_manager() { return lifetime_manager_.get(); }
BgpConfigManager *config_manager() { return config_mgr_.get(); }
const BgpConfigManager *config_manager() const { return config_mgr_.get(); }
RoutingInstanceMgr *routing_instance_mgr() { return inst_mgr_.get(); }
const RoutingInstanceMgr *routing_instance_mgr() const {
return inst_mgr_.get();
}
RTargetGroupMgr *rtarget_group_mgr() { return rtarget_group_mgr_.get(); }
const RTargetGroupMgr *rtarget_group_mgr() const {
return rtarget_group_mgr_.get();
}
BgpConditionListener *condition_listener(Address::Family family) {
if (family == Address::INET)
return inet_condition_listener_.get();
if (family == Address::INET6)
return inet6_condition_listener_.get();
assert(false);
return NULL;
}
ServiceChainMgr *service_chain_mgr() {
return service_chain_mgr_.get();
}
RoutePathReplicator *replicator(Address::Family family) {
if (family == Address::INETVPN)
return inetvpn_replicator_.get();
if (family == Address::EVPN)
return evpn_replicator_.get();
if (family == Address::ERMVPN)
return ermvpn_replicator_.get();
if (family == Address::INET6VPN)
return inet6vpn_replicator_.get();
assert(false);
return NULL;
}
PeerRibMembershipManager *membership_mgr() { return membership_mgr_.get(); }
const PeerRibMembershipManager *membership_mgr() const {
return membership_mgr_.get();
}
AsPathDB *aspath_db() { return aspath_db_.get(); }
BgpAttrDB *attr_db() { return attr_db_.get(); }
BgpOListDB *olist_db() { return olist_db_.get(); }
CommunityDB *comm_db() { return comm_db_.get(); }
EdgeDiscoveryDB *edge_discovery_db() { return edge_discovery_db_.get(); }
EdgeForwardingDB *edge_forwarding_db() { return edge_forwarding_db_.get(); }
ExtCommunityDB *extcomm_db() { return extcomm_db_.get(); }
OriginVnPathDB *ovnpath_db() { return ovnpath_db_.get(); }
PmsiTunnelDB *pmsi_tunnel_db() { return pmsi_tunnel_db_.get(); }
bool IsDeleted() const;
bool IsReadyForDeletion();
void RetryDelete();
bool destroyed() const { return destroyed_; }
void set_destroyed() { destroyed_ = true; }
DB *database() { return &db_; }
const std::string &localname() const;
as_t autonomous_system() const { return autonomous_system_; }
as_t local_autonomous_system() const { return local_autonomous_system_; }
uint32_t bgp_identifier() const { return bgp_identifier_.to_ulong(); }
std::string bgp_identifier_string() const {
return bgp_identifier_.to_string();
}
uint16_t hold_time() const { return hold_time_; }
// Status
uint32_t num_routing_instance() const;
uint32_t num_deleted_routing_instance() const;
uint32_t num_bgp_peer() const {
return (peer_bmap_.size() - peer_bmap_.count());
}
uint32_t num_closing_bgp_peer() const { return closing_count_; }
void increment_closing_count() { closing_count_++; }
void decrement_closing_count() { closing_count_--; }
uint32_t get_output_queue_depth() const;
uint32_t num_service_chains() const;
uint32_t num_down_service_chains() const;
uint32_t num_static_routes() const;
uint32_t num_down_static_routes() const;
void IncUpPeerCount() {
num_up_peer_++;
}
void DecUpPeerCount() {
assert(num_up_peer_);
num_up_peer_--;
}
uint32_t NumUpPeer() const {
return num_up_peer_;
}
LifetimeActor *deleter();
boost::asio::io_service *ioservice();
void increment_message_build_error() const { ++message_build_error_; }
uint64_t message_build_error() const { return message_build_error_; }
int RegisterASNUpdateCallback(ASNUpdateCb callback);
void UnregisterASNUpdateCallback(int listener);
void NotifyASNUpdate(as_t old_asn, as_t old_local_asn);
int RegisterIdentifierUpdateCallback(IdentifierUpdateCb callback);
void UnregisterIdentifierUpdateCallback(int listener);
void NotifyIdentifierUpdate(Ip4Address old_identifier);
void InsertStaticRouteMgr(StaticRouteMgr *srt_manager);
void RemoveStaticRouteMgr(StaticRouteMgr *srt_manager);
void NotifyAllStaticRoutes();
uint32_t GetStaticRouteCount() const;
uint32_t GetDownStaticRouteCount() const;
private:
class ConfigUpdater;
class DeleteActor;
friend class BgpServerTest;
friend class BgpServerUnitTest;
typedef std::map<std::string, BgpPeer *> BgpPeerList;
typedef std::vector<ASNUpdateCb> ASNUpdateListenersList;
typedef std::vector<IdentifierUpdateCb> IdentifierUpdateListenersList;
void RoutingInstanceMgrDeletionComplete(RoutingInstanceMgr *mgr);
// base config variables
tbb::spin_rw_mutex rw_mutex_;
as_t autonomous_system_;
as_t local_autonomous_system_;
ASNUpdateListenersList asn_listeners_;
boost::dynamic_bitset<> asn_bmap_; // free list.
Ip4Address bgp_identifier_;
IdentifierUpdateListenersList id_listeners_;
boost::dynamic_bitset<> id_bmap_; // free list.
uint16_t hold_time_;
StaticRouteMgrList srt_manager_list_;
DB db_;
boost::dynamic_bitset<> peer_bmap_;
tbb::atomic<uint32_t> num_up_peer_;
tbb::atomic<uint32_t> closing_count_;
BgpPeerList peer_list_;
boost::scoped_ptr<LifetimeManager> lifetime_manager_;
boost::scoped_ptr<DeleteActor> deleter_;
bool destroyed_;
// databases
boost::scoped_ptr<AsPathDB> aspath_db_;
boost::scoped_ptr<BgpOListDB> olist_db_;
boost::scoped_ptr<CommunityDB> comm_db_;
boost::scoped_ptr<EdgeDiscoveryDB> edge_discovery_db_;
boost::scoped_ptr<EdgeForwardingDB> edge_forwarding_db_;
boost::scoped_ptr<ExtCommunityDB> extcomm_db_;
boost::scoped_ptr<OriginVnPathDB> ovnpath_db_;
boost::scoped_ptr<PmsiTunnelDB> pmsi_tunnel_db_;
boost::scoped_ptr<BgpAttrDB> attr_db_;
// sessions and state managers
BgpSessionManager *session_mgr_;
boost::scoped_ptr<SchedulingGroupManager> sched_mgr_;
boost::scoped_ptr<RoutingInstanceMgr> inst_mgr_;
boost::scoped_ptr<RTargetGroupMgr> rtarget_group_mgr_;
boost::scoped_ptr<PeerRibMembershipManager> membership_mgr_;
boost::scoped_ptr<BgpConditionListener> inet_condition_listener_;
boost::scoped_ptr<BgpConditionListener> inet6_condition_listener_;
boost::scoped_ptr<RoutePathReplicator> inetvpn_replicator_;
boost::scoped_ptr<RoutePathReplicator> ermvpn_replicator_;
boost::scoped_ptr<RoutePathReplicator> evpn_replicator_;
boost::scoped_ptr<RoutePathReplicator> inet6vpn_replicator_;
boost::scoped_ptr<ServiceChainMgr> service_chain_mgr_;
// configuration
boost::scoped_ptr<BgpConfigManager> config_mgr_;
boost::scoped_ptr<ConfigUpdater> updater_;
mutable tbb::atomic<uint64_t> message_build_error_;
DISALLOW_COPY_AND_ASSIGN(BgpServer);
};
#endif // SRC_BGP_BGP_SERVER_H_