Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2017 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_mvpn.h"
      10             : #include "bgp/bgp_server.h"
      11             : #include "bgp/mvpn/mvpn_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 mvpn table.
      22             : //
      23           0 : static void FillMvpnManagerInfo(ShowMvpnManager *smm,
      24             :     const BgpSandeshContext *bsc, const MvpnTable *table) {
      25           0 :     smm->set_name(table->name());
      26           0 :     const MvpnManager *manager = table->manager();
      27           0 :     if (!manager)
      28           0 :         return;
      29             : 
      30           0 :     smm->set_project_manager(
      31             :         table->routing_instance()->mvpn_project_manager_network());
      32           0 :     smm->set_deleted(manager->deleted());
      33           0 :     smm->set_deleted_at(
      34           0 :         UTCUsecToString(manager->deleter()->delete_time_stamp_usecs()));
      35             : }
      36             : 
      37             : //
      38             : // Specialization of BgpShowHandler<>::CallbackCommon.
      39             : //
      40             : template <>
      41           0 : bool BgpShowHandler<ShowMvpnManagerReq, ShowMvpnManagerReqIterate,
      42             :     ShowMvpnManagerResp, ShowMvpnManager>::CallbackCommon(
      43             :     const BgpSandeshContext *bsc, Data *data) {
      44           0 :     uint32_t page_limit = bsc->page_limit() ? bsc->page_limit() : kPageLimit;
      45           0 :     uint32_t iter_limit = bsc->iter_limit() ? bsc->iter_limit() : kIterLimit;
      46           0 :     RoutingInstanceMgr *rim = bsc->bgp_server->routing_instance_mgr();
      47             : 
      48           0 :     regex search_expr(data->search_string);
      49             :     RoutingInstanceMgr::const_name_iterator it =
      50           0 :         rim->name_clower_bound(data->next_entry);
      51           0 :     for (uint32_t iter_count = 0; it != rim->name_cend(); ++it, ++iter_count) {
      52           0 :         const RoutingInstance *rtinstance = it->second;
      53             :         const MvpnTable *table = static_cast<const MvpnTable *>(
      54           0 :             rtinstance->GetTable(Address::MVPN));
      55           0 :         if (!table)
      56           0 :             continue;
      57           0 :         if ((!regex_search(table->name(), search_expr)) &&
      58           0 :             (data->search_string != "deleted" || !table->IsDeleted())) {
      59           0 :             continue;
      60             :         }
      61           0 :         ShowMvpnManager smm;
      62           0 :         FillMvpnManagerInfo(&smm, bsc, table);
      63           0 :         data->show_list.push_back(smm);
      64           0 :         if (data->show_list.size() >= page_limit)
      65           0 :             break;
      66           0 :         if (iter_count >= iter_limit)
      67           0 :             break;
      68           0 :     }
      69             : 
      70             :     // All done if we've looked at all instances.
      71           0 :     if (it == rim->name_cend() || ++it == rim->name_cend())
      72           0 :         return true;
      73             : 
      74             :     // Return true if we've reached the page limit, false if we've reached the
      75             :     // iteration limit.
      76           0 :     bool done = data->show_list.size() >= page_limit;
      77           0 :     SaveContextToData(it->second->name(), done, data);
      78           0 :     return done;
      79           0 : }
      80             : 
      81             : //
      82             : // Specialization of BgpShowHandler<>::FillShowList.
      83             : //
      84             : template <>
      85           0 : void BgpShowHandler<ShowMvpnManagerReq, ShowMvpnManagerReqIterate,
      86             :     ShowMvpnManagerResp, ShowMvpnManager>::FillShowList(
      87             :     ShowMvpnManagerResp *resp,
      88             :     const vector<ShowMvpnManager> &show_list) {
      89           0 :     resp->set_managers(show_list);
      90           0 : }
      91             : 
      92             : //
      93             : // Handler for ShowMvpnManagerReq.
      94             : //
      95           0 : void ShowMvpnManagerReq::HandleRequest() const {
      96           0 :     RequestPipeline::PipeSpec ps(this);
      97           0 :     RequestPipeline::StageSpec s1;
      98           0 :     TaskScheduler *scheduler = TaskScheduler::GetInstance();
      99             : 
     100           0 :     s1.taskId_ = scheduler->GetTaskId("bgp::ShowCommand");
     101             :     s1.cbFn_ = boost::bind(&BgpShowHandler<
     102             :         ShowMvpnManagerReq,
     103             :         ShowMvpnManagerReqIterate,
     104             :         ShowMvpnManagerResp,
     105           0 :         ShowMvpnManager>::Callback, _1, _2, _3, _4, _5);
     106             :     s1.allocFn_ = BgpShowHandler<
     107             :         ShowMvpnManagerReq,
     108             :         ShowMvpnManagerReqIterate,
     109             :         ShowMvpnManagerResp,
     110           0 :         ShowMvpnManager>::CreateData;
     111           0 :     s1.instances_.push_back(0);
     112           0 :     ps.stages_.push_back(s1);
     113           0 :     RequestPipeline rp(ps);
     114           0 : }
     115             : 
     116             : //
     117             : // Handler for ShowMvpnManagerReqIterate.
     118             : //
     119           0 : void ShowMvpnManagerReqIterate::HandleRequest() const {
     120           0 :     RequestPipeline::PipeSpec ps(this);
     121           0 :     RequestPipeline::StageSpec s1;
     122           0 :     TaskScheduler *scheduler = TaskScheduler::GetInstance();
     123             : 
     124           0 :     s1.taskId_ = scheduler->GetTaskId("bgp::ShowCommand");
     125             :     s1.cbFn_ = boost::bind(&BgpShowHandler<
     126             :         ShowMvpnManagerReq,
     127             :         ShowMvpnManagerReqIterate,
     128             :         ShowMvpnManagerResp,
     129           0 :         ShowMvpnManager>::CallbackIterate, _1, _2, _3, _4, _5);
     130             :     s1.allocFn_ = BgpShowHandler<
     131             :         ShowMvpnManagerReq,
     132             :         ShowMvpnManagerReqIterate,
     133             :         ShowMvpnManagerResp,
     134           0 :         ShowMvpnManager>::CreateData;
     135           0 :     s1.instances_.push_back(0);
     136           0 :     ps.stages_.push_back(s1);
     137           0 :     RequestPipeline rp(ps);
     138           0 : }