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@ -84,11 +84,17 @@ namespace transport
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void SSU2Server::Stop ()
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{
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for (auto& it: m_Sessions)
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{
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it.second->RequestTermination (eSSU2TerminationReasonRouterShutdown);
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it.second->Done ();
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}
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m_Sessions.clear ();
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m_SessionsByRouterHash.clear ();
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m_PendingOutgoingSessions.clear ();
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m_Relays.clear ();
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m_Introducers.clear ();
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m_IntroducersV6.clear ();
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if (context.SupportsV4 () || context.SupportsV6 ())
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m_ReceiveService.Stop ();
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@ -715,5 +721,58 @@ namespace transport
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m_IncomingTokens.emplace (ep, ret);
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return ret;
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}
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std::list<std::shared_ptr<SSU2Session> > SSU2Server::FindIntroducers (int maxNumIntroducers,
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bool v4, const std::set<i2p::data::IdentHash>& excluded) const
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{
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std::list<std::shared_ptr<SSU2Session> > ret;
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for (const auto& s : m_Sessions)
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{
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if (s.second->IsEstablished () && (s.second->GetRelayTag () && !s.second->IsOutgoing ()) &&
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!excluded.count (s.second->GetRemoteIdentity ()->GetIdentHash ()) &&
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((v4 && (s.second->GetRemoteTransports () | i2p::data::RouterInfo::eSSU2V4)) ||
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(!v4 && (s.second->GetRemoteTransports () | i2p::data::RouterInfo::eSSU2V6))))
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ret.push_back (s.second);
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}
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if ((int)ret.size () > maxNumIntroducers)
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{
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// shink ret randomly
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int sz = ret.size () - maxNumIntroducers;
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for (int i = 0; i < sz; i++)
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{
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auto ind = rand () % ret.size ();
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auto it = ret.begin ();
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std::advance (it, ind);
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ret.erase (it);
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}
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}
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return ret;
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}
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void SSU2Server::UpdateIntroducers (bool v4)
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{
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std::list<std::shared_ptr<SSU2Session>> newList;
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auto& introducers = v4 ? m_Introducers : m_IntroducersV6;
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for (const auto& it : introducers)
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{
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if (it->IsEstablished ())
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{
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it->SendKeepAlive ();
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newList.push_back (it);
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}
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}
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if (newList.size () < SSU2_MAX_NUM_INTRODUCERS)
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{
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std::set<i2p::data::IdentHash> excluded;
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for (auto& it1: newList)
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excluded.insert (it1->GetRemoteIdentity ()->GetIdentHash ());
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auto sessions = FindIntroducers (SSU_MAX_NUM_INTRODUCERS - newList.size (), v4, excluded);
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for (const auto& it : sessions)
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{
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newList.push_back (it);
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}
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}
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introducers = newList;
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}
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}
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}
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