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82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
#ifndef LLARP_IWP_LINKLAYER_HPP
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#define LLARP_IWP_LINKLAYER_HPP
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#include <constants/link_layer.hpp>
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#include <crypto/crypto.hpp>
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#include <crypto/encrypted.hpp>
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#include <crypto/types.hpp>
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#include <link/server.hpp>
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#include <iwp/outermessage.hpp>
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namespace llarp
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{
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namespace iwp
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{
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struct LinkLayer final : public ILinkLayer
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{
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LinkLayer(const SecretKey &encryptionSecretKey, GetRCFunc getrc,
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LinkMessageHandler h, SessionEstablishedHandler established,
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SessionRenegotiateHandler reneg, SignBufferFunc sign,
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TimeoutHandler timeout, SessionClosedHandler closed);
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~LinkLayer();
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bool
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Start(std::shared_ptr< Logic > l) override;
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std::shared_ptr< ILinkSession >
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NewOutboundSession(const RouterContact &rc,
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const AddressInfo &ai) override;
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void
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Pump() override;
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bool
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KeyGen(SecretKey &k) override;
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const char *
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Name() const override;
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uint16_t
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Rank() const override;
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/// verify that a new flow id matches addresses and pubkey
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bool
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VerifyFlowID(const PubKey &pk, const Addr &from,
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const FlowID_t &flow) const;
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void
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RecvFrom(const Addr &from, const void *buf, size_t sz) override;
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private:
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bool
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GenFlowIDFor(const PubKey &pk, const Addr &from, FlowID_t &flow) const;
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bool
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ShouldSendFlowID(const Addr &from) const;
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void
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SendReject(const Addr &to, const char *msg);
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void
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SendFlowID(const Addr &to, const FlowID_t &flow);
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using ActiveFlows_t =
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std::unordered_map< FlowID_t, RouterID, FlowID_t::Hash >;
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ActiveFlows_t m_ActiveFlows;
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using PendingFlows_t = std::unordered_map< Addr, FlowID_t, Addr::Hash >;
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/// flows that are pending authentication
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PendingFlows_t m_PendingFlows;
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/// cookie used in flow id computation
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AlignedBuffer< 32 > m_FlowCookie;
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OuterMessage m_OuterMsg;
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};
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} // namespace iwp
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} // namespace llarp
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#endif
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