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123 lines
3.0 KiB
C++
123 lines
3.0 KiB
C++
#ifndef LLARP_SERVICE_OUTBOUND_CONTEXT_HPP
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#define LLARP_SERVICE_OUTBOUND_CONTEXT_HPP
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#include <path/pathbuilder.hpp>
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#include <service/sendcontext.hpp>
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#include <util/status.hpp>
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#include <unordered_map>
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namespace llarp
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{
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namespace service
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{
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struct AsyncKeyExchange;
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struct Endpoint;
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/// context needed to initiate an outbound hidden service session
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struct OutboundContext
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: public path::Builder,
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public SendContext,
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public std::enable_shared_from_this< OutboundContext >
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{
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OutboundContext(const IntroSet& introSet, Endpoint* parent);
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~OutboundContext();
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util::StatusObject
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ExtractStatus() const;
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bool
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ShouldBundleRC() const override;
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path::PathSet_ptr
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GetSelf() override
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{
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return shared_from_this();
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}
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bool
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Stop() override;
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bool
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HandleDataDrop(path::Path_ptr p, const PathID_t& dst, uint64_t s);
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void
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HandlePathDied(path::Path_ptr p) override;
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/// set to true if we are updating the remote introset right now
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bool updatingIntroSet;
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/// update the current selected intro to be a new best introduction
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/// return true if we have changed intros
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bool
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ShiftIntroduction(bool rebuild = true) override;
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/// mark the current remote intro as bad
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bool
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MarkCurrentIntroBad(llarp_time_t now) override;
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/// return true if we are ready to send
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bool
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ReadyToSend() const;
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bool
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ShouldBuildMore(llarp_time_t now) const override;
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/// pump internal state
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/// return true to mark as dead
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bool
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Pump(llarp_time_t now);
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/// return true if it's safe to remove ourselves
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bool
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IsDone(llarp_time_t now) const;
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bool
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CheckPathIsDead(path::Path_ptr p, llarp_time_t dlt);
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void
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AsyncGenIntro(const llarp_buffer_t& payload, ProtocolType t) override;
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/// issues a lookup to find the current intro set of the remote service
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void
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UpdateIntroSet(bool randomizePath) override;
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void
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HandlePathBuilt(path::Path_ptr path) override;
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bool
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SelectHop(llarp_nodedb* db, const std::set< RouterID >& prev,
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RouterContact& cur, size_t hop, path::PathRole roles) override;
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bool
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HandleHiddenServiceFrame(path::Path_ptr p, const ProtocolFrame& frame);
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std::string
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Name() const override;
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private:
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/// swap remoteIntro with next intro
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void
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SwapIntros();
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void
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OnGeneratedIntroFrame(AsyncKeyExchange* k, PathID_t p);
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bool
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OnIntroSetUpdate(const Address& addr, const IntroSet* i,
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const RouterID& endpoint);
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uint64_t m_UpdateIntrosetTX = 0;
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IntroSet currentIntroSet;
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Introduction m_NextIntro;
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std::unordered_map< Introduction, llarp_time_t, Introduction::Hash >
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m_BadIntros;
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llarp_time_t lastShift = 0;
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uint16_t m_LookupFails = 0;
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uint16_t m_BuildFails = 0;
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};
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} // namespace service
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} // namespace llarp
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#endif
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