Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
       3             :  */
       4             : 
       5             : #ifndef __XMPP_IFMAP_INC__
       6             : #define __XMPP_IFMAP_INC__
       7             : 
       8             : #include <map>
       9             : #include <string>
      10             : #include <mutex>
      11             : #include <atomic>
      12             : 
      13             : #include <boost/function.hpp>
      14             : #include <boost/system/error_code.hpp>
      15             : 
      16             : #include "base/queue_task.h"
      17             : #include "ifmap/ifmap_client.h"
      18             : #include "ifmap/ifmap_server.h"
      19             : #include "xmpp/xmpp_channel.h"
      20             : 
      21             : class XmppChannel;
      22             : class XmppServer;
      23             : class IFMapChannelManager;
      24             : class IFMapXmppChannelMapEntry;
      25             : 
      26             : // Xmpp Channel Events
      27             : enum XCEvent {
      28             :     XCE_NOT_READY = 1,
      29             :     XCE_VR_SUBSCRIBE = 2,
      30             :     XCE_VM_SUBSCRIBE = 3,
      31             :     XCE_VM_UNSUBSCRIBE = 4,
      32             : };
      33             : 
      34             : struct ChannelEventInfo {
      35             :     XCEvent event;
      36             :     XmppChannel *channel;
      37             :     std::string name;
      38             : };
      39             : 
      40             : class IFMapXmppChannel {
      41             : public:
      42             :     static const std::string NoFqnSet;
      43             :     class IFMapSender;
      44             :     IFMapXmppChannel(XmppChannel *, IFMapServer *, IFMapChannelManager *);
      45             :     virtual ~IFMapXmppChannel();
      46             : 
      47           0 :     std::string ToString() const { return channel_->ToString(); } // hostname
      48             :     IFMapClient *Sender();
      49             : 
      50             :     virtual void ReceiveUpdate(const XmppStanza::XmppMessage *);
      51           7 :     XmppChannel *channel() { return channel_; }
      52             : 
      53             :     void ClearCounters();
      54             :     uint64_t msgs_sent() const;
      55             :     std::string VrSubscribeGetVrName(const std::string &iqnode,
      56             :                                      bool *valid_message);
      57             :     std::string VmSubscribeGetVmUuid(const std::string &iqnode,
      58             :                                      bool *valid_message);
      59             :     bool MustProcessChannelNotReady();
      60             : 
      61             :     void ProcessVrSubscribe(const std::string &identifier);
      62             :     void EnqueueVrSubscribe(const std::string &identifier);
      63             : 
      64             :     void ProcessVmSubscribe(const std::string &vm_uuid);
      65             :     void ProcessVmUnsubscribe(const std::string &vm_uuid);
      66             :     void EnqueueVmSubUnsub(bool subscribe, const std::string &vm_uuid);
      67           0 :     bool get_client_added() { return client_added_; }
      68           0 :     const std::string& channel_name() { return channel_name_; }
      69             :     const std::string& FQName() const;
      70             : 
      71             : private:
      72             :     friend class XmppIfmapTest;
      73             :     void WriteReadyCb(const boost::system::error_code &ec);
      74             : 
      75             :     xmps::PeerId peer_id_;
      76             :     XmppChannel *channel_;
      77             :     IFMapServer *ifmap_server_;
      78             :     IFMapChannelManager *ifmap_channel_manager_;
      79             :     IFMapSender *ifmap_client_;
      80             :     bool client_added_;  // true if ifmap_server has processed add-client
      81             :     std::string channel_name_;
      82             : };
      83             : 
      84             : class IFMapChannelManager {
      85             : public:
      86             :     IFMapChannelManager(XmppServer *, IFMapServer *);
      87             :     virtual ~IFMapChannelManager();
      88             : 
      89             :     IFMapXmppChannel *FindChannel(XmppChannel *);
      90             :     IFMapXmppChannel *FindChannel(std::string);
      91             :     void IFMapXmppChannelEventCb(XmppChannel *, xmps::PeerState);
      92             :     virtual IFMapXmppChannel *CreateIFMapXmppChannel(XmppChannel *);
      93             :     void EnqueueChannelUnregister(XmppChannel *channel);
      94             :     void ProcessChannelReady(XmppChannel *channel);
      95             :     void ProcessChannelNotReady(XmppChannel *channel);
      96             : 
      97           0 :     void incr_unknown_subscribe_messages() { ++unknown_subscribe_messages; }
      98           0 :     void incr_unknown_unsubscribe_messages() { ++unknown_unsubscribe_messages; }
      99           0 :     void incr_duplicate_channel_ready_messages() {
     100           0 :         ++duplicate_channel_ready_messages;
     101           0 :     }
     102           0 :     void incr_invalid_channel_not_ready_messages() {
     103           0 :         ++invalid_channel_not_ready_messages;
     104           0 :     }
     105           0 :     void incr_invalid_channel_state_messages() {
     106           0 :         ++invalid_channel_state_messages;
     107           0 :     }
     108           0 :     void incr_invalid_vm_subscribe_messages() {
     109           0 :         ++invalid_vm_subscribe_messages;
     110           0 :     }
     111           0 :     void incr_vmsub_novrsub_messages() {
     112           0 :         ++vmsub_novrsub_messages;
     113           0 :     }
     114           0 :     void incr_vmunsub_novrsub_messages() {
     115           0 :         ++vmunsub_novrsub_messages;
     116           0 :     }
     117           0 :     void incr_vmunsub_novmsub_messages() {
     118           0 :         ++vmunsub_novmsub_messages;
     119           0 :     }
     120           0 :     void incr_duplicate_vrsub_messages() {
     121           0 :         ++duplicate_vrsub_messages;
     122           0 :     }
     123           0 :     void incr_duplicate_vmsub_messages() {
     124           0 :         ++duplicate_vmsub_messages;
     125           0 :     }
     126             : 
     127           0 :     uint64_t get_unknown_subscribe_messages() {
     128           0 :         return unknown_subscribe_messages;
     129             :     }
     130           0 :     uint64_t get_unknown_unsubscribe_messages() {
     131           0 :         return unknown_unsubscribe_messages;
     132             :     }
     133           0 :     uint64_t get_duplicate_channel_ready_messages() {
     134           0 :         return duplicate_channel_ready_messages;
     135             :     }
     136           0 :     uint64_t get_invalid_channel_not_ready_messages() {
     137           0 :         return invalid_channel_not_ready_messages;
     138             :     }
     139           0 :     uint64_t get_invalid_channel_state_messages() {
     140           0 :         return invalid_channel_state_messages;
     141             :     }
     142           0 :     uint64_t get_invalid_vm_subscribe_messages() {
     143           0 :         return invalid_vm_subscribe_messages;
     144             :     }
     145           0 :     uint64_t get_vmsub_novrsub_messages() {
     146           0 :         return vmsub_novrsub_messages;
     147             :     }
     148           0 :     uint64_t get_vmunsub_novrsub_messages() {
     149           0 :         return vmunsub_novrsub_messages;
     150             :     }
     151           0 :     uint64_t get_vmunsub_novmsub_messages() {
     152           0 :         return vmunsub_novmsub_messages;
     153             :     }
     154           0 :     uint64_t get_duplicate_vrsub_messages() {
     155           0 :         return duplicate_vrsub_messages;
     156             :     }
     157           0 :     uint64_t get_duplicate_vmsub_messages() {
     158           0 :         return duplicate_vmsub_messages;
     159             :     }
     160             :     void FillChannelMap(std::vector<IFMapXmppChannelMapEntry> *out_map);
     161             : 
     162             : private:
     163             :     friend class IFMapChannelManagerTest;
     164             :     friend class XmppIfmapTest;
     165             :     typedef std::map<XmppChannel *, IFMapXmppChannel *> ChannelMap;
     166             :     struct ConfigTaskQueueEntry {
     167             :         XmppChannel *channel;
     168             :     };
     169             : 
     170             :     XmppServer *xmpp_server_;
     171             :     IFMapServer *ifmap_server_;
     172             :     ChannelMap channel_map_;
     173             :     std::mutex channel_map_mutex_; // serializes access to channel_map_
     174             :     WorkQueue<ConfigTaskQueueEntry> config_task_work_queue_;
     175             : 
     176             :     bool ProcessChannelUnregister(ConfigTaskQueueEntry entry);
     177             : 
     178             :     void DeleteIFMapXmppChannel(IFMapXmppChannel *ifmap_chnl);
     179             :     void EnqueueChannelEvent(XCEvent event, XmppChannel *channel);
     180             : 
     181             :     std::atomic<uint64_t> unknown_subscribe_messages;
     182             :     std::atomic<uint64_t> unknown_unsubscribe_messages;
     183             :     std::atomic<uint64_t> duplicate_channel_ready_messages;
     184             :     std::atomic<uint64_t> invalid_channel_not_ready_messages;
     185             :     std::atomic<uint64_t> invalid_channel_state_messages;
     186             :     std::atomic<uint64_t> invalid_vm_subscribe_messages;
     187             :     std::atomic<uint64_t> vmsub_novrsub_messages;
     188             :     std::atomic<uint64_t> vmunsub_novrsub_messages;
     189             :     std::atomic<uint64_t> vmunsub_novmsub_messages;
     190             :     std::atomic<uint64_t> duplicate_vrsub_messages;
     191             :     std::atomic<uint64_t> duplicate_vmsub_messages;
     192             : };
     193             : 
     194             : #endif // __XMPP_IFMAP_INC__