Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
       3             :  */
       4             : 
       5             : #include "bgp/bgp_show_handler.h"
       6             : 
       7             : #include "base/regex.h"
       8             : #include "bgp/bgp_peer_internal_types.h"
       9             : #include "bgp/bgp_multicast.h"
      10             : #include "bgp/bgp_server.h"
      11             : #include "bgp/ermvpn/ermvpn_table.h"
      12             : #include "bgp/routing-instance/routing_instance.h"
      13             : 
      14             : using contrail::regex;
      15             : using contrail::regex_match;
      16             : using contrail::regex_search;
      17             : using std::string;
      18             : using std::vector;
      19             : 
      20             : //
      21             : // Fill in information for an ermvpn table.
      22             : //
      23           0 : static void FillMulticastManagerInfo(ShowMulticastManager *smm,
      24             :     const BgpSandeshContext *bsc, const ErmVpnTable *table) {
      25           0 :     smm->set_name(table->name());
      26           0 :     const McastTreeManager *manager = table->GetTreeManager();
      27           0 :     if (!manager)
      28           0 :         return;
      29             : 
      30           0 :     smm->set_deleted(manager->deleted());
      31           0 :     smm->set_deleted_at(
      32           0 :         UTCUsecToString(manager->deleter()->delete_time_stamp_usecs()));
      33             : 
      34           0 :     uint32_t total_trees = 0;
      35           0 :     for (McastTreeManager::const_iterator it = manager->begin();
      36           0 :          it != manager->end(); ++it) {
      37           0 :         const McastManagerPartition *partition = *it;
      38           0 :         total_trees += partition->size();
      39             :     }
      40           0 :     smm->set_total_trees(total_trees);
      41             : }
      42             : 
      43             : //
      44             : // Specialization of BgpShowHandler<>::CallbackCommon.
      45             : //
      46             : template <>
      47           0 : bool BgpShowHandler<ShowMulticastManagerReq, ShowMulticastManagerReqIterate,
      48             :     ShowMulticastManagerResp, ShowMulticastManager>::CallbackCommon(
      49             :     const BgpSandeshContext *bsc, Data *data) {
      50           0 :     uint32_t page_limit = bsc->page_limit() ? bsc->page_limit() : kPageLimit;
      51           0 :     uint32_t iter_limit = bsc->iter_limit() ? bsc->iter_limit() : kIterLimit;
      52           0 :     RoutingInstanceMgr *rim = bsc->bgp_server->routing_instance_mgr();
      53             : 
      54           0 :     regex search_expr(data->search_string);
      55             :     RoutingInstanceMgr::const_name_iterator it =
      56           0 :         rim->name_clower_bound(data->next_entry);
      57           0 :     for (uint32_t iter_count = 0; it != rim->name_cend(); ++it, ++iter_count) {
      58           0 :         const RoutingInstance *rtinstance = it->second;
      59             :         const ErmVpnTable *table = static_cast<const ErmVpnTable *>(
      60           0 :             rtinstance->GetTable(Address::ERMVPN));
      61           0 :         if (!table)
      62           0 :             continue;
      63           0 :         if ((!regex_search(table->name(), search_expr)) &&
      64           0 :             (data->search_string != "deleted" || !table->IsDeleted())) {
      65           0 :             continue;
      66             :         }
      67           0 :         ShowMulticastManager smm;
      68           0 :         FillMulticastManagerInfo(&smm, bsc, table);
      69           0 :         data->show_list.push_back(smm);
      70           0 :         if (data->show_list.size() >= page_limit)
      71           0 :             break;
      72           0 :         if (iter_count >= iter_limit)
      73           0 :             break;
      74           0 :     }
      75             : 
      76             :     // All done if we've looked at all instances.
      77           0 :     if (it == rim->name_cend() || ++it == rim->name_cend())
      78           0 :         return true;
      79             : 
      80             :     // Return true if we've reached the page limit, false if we've reached the
      81             :     // iteration limit.
      82           0 :     bool done = data->show_list.size() >= page_limit;
      83           0 :     SaveContextToData(it->second->name(), done, data);
      84           0 :     return done;
      85           0 : }
      86             : 
      87             : //
      88             : // Specialization of BgpShowHandler<>::FillShowList.
      89             : //
      90             : template <>
      91           0 : void BgpShowHandler<ShowMulticastManagerReq, ShowMulticastManagerReqIterate,
      92             :     ShowMulticastManagerResp, ShowMulticastManager>::FillShowList(
      93             :     ShowMulticastManagerResp *resp,
      94             :     const vector<ShowMulticastManager> &show_list) {
      95           0 :     resp->set_managers(show_list);
      96           0 : }
      97             : 
      98             : //
      99             : // Handler for ShowMulticastManagerReq.
     100             : //
     101           0 : void ShowMulticastManagerReq::HandleRequest() const {
     102           0 :     RequestPipeline::PipeSpec ps(this);
     103           0 :     RequestPipeline::StageSpec s1;
     104           0 :     TaskScheduler *scheduler = TaskScheduler::GetInstance();
     105             : 
     106           0 :     s1.taskId_ = scheduler->GetTaskId("bgp::ShowCommand");
     107             :     s1.cbFn_ = boost::bind(&BgpShowHandler<
     108             :         ShowMulticastManagerReq,
     109             :         ShowMulticastManagerReqIterate,
     110             :         ShowMulticastManagerResp,
     111           0 :         ShowMulticastManager>::Callback, _1, _2, _3, _4, _5);
     112             :     s1.allocFn_ = BgpShowHandler<
     113             :         ShowMulticastManagerReq,
     114             :         ShowMulticastManagerReqIterate,
     115             :         ShowMulticastManagerResp,
     116           0 :         ShowMulticastManager>::CreateData;
     117           0 :     s1.instances_.push_back(0);
     118           0 :     ps.stages_.push_back(s1);
     119           0 :     RequestPipeline rp(ps);
     120           0 : }
     121             : 
     122             : //
     123             : // Handler for ShowMulticastManagerReqIterate.
     124             : //
     125           0 : void ShowMulticastManagerReqIterate::HandleRequest() const {
     126           0 :     RequestPipeline::PipeSpec ps(this);
     127           0 :     RequestPipeline::StageSpec s1;
     128           0 :     TaskScheduler *scheduler = TaskScheduler::GetInstance();
     129             : 
     130           0 :     s1.taskId_ = scheduler->GetTaskId("bgp::ShowCommand");
     131             :     s1.cbFn_ = boost::bind(&BgpShowHandler<
     132             :         ShowMulticastManagerReq,
     133             :         ShowMulticastManagerReqIterate,
     134             :         ShowMulticastManagerResp,
     135           0 :         ShowMulticastManager>::CallbackIterate, _1, _2, _3, _4, _5);
     136             :     s1.allocFn_ = BgpShowHandler<
     137             :         ShowMulticastManagerReq,
     138             :         ShowMulticastManagerReqIterate,
     139             :         ShowMulticastManagerResp,
     140           0 :         ShowMulticastManager>::CreateData;
     141           0 :     s1.instances_.push_back(0);
     142           0 :     ps.stages_.push_back(s1);
     143           0 :     RequestPipeline rp(ps);
     144           0 : }