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38fd0552d3
Success case:
- the path endpoint creates and sends a LR_StatusMessage upon
successful path creation
Failure case:
- an intermediate hop creates and sends a LR_StatusMessage upon
failure to forward the path to the next hop for any reason
Both cases:
- transit hops receive LR_StatusMessages and add a frame
to them reflecting their "status" with respect to that path
- the path creator receives LR_StatusMessages and decrypts/parses
the LR_StatusRecord frames from the path hops. If all is good,
the Path does as it would when receiving a PathConfirmMessage.
If not, the Path marks the new path as failed.
LR_StatusMessage is now used/sent in place of PathConfirmMessage
71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
#ifndef LLARP_PATH_IHOPHANDLER_HPP
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#define LLARP_PATH_IHOPHANDLER_HPP
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#include <crypto/types.hpp>
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#include <util/types.hpp>
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#include <crypto/encrypted_frame.hpp>
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#include <memory>
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struct llarp_buffer_t;
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namespace llarp
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{
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struct AbstractRouter;
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namespace routing
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{
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struct IMessage;
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}
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namespace path
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{
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struct IHopHandler
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{
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virtual ~IHopHandler()
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{
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}
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virtual bool
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Expired(llarp_time_t now) const = 0;
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virtual bool
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ExpiresSoon(llarp_time_t now, llarp_time_t dlt) const = 0;
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/// send routing message and increment sequence number
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virtual bool
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SendRoutingMessage(const routing::IMessage& msg, AbstractRouter* r) = 0;
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// handle data in upstream direction
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virtual bool
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HandleUpstream(const llarp_buffer_t& X, const TunnelNonce& Y,
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AbstractRouter* r) = 0;
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// handle data in downstream direction
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virtual bool
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HandleDownstream(const llarp_buffer_t& X, const TunnelNonce& Y,
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AbstractRouter* r) = 0;
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/// return timestamp last remote activity happened at
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virtual llarp_time_t
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LastRemoteActivityAt() const = 0;
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virtual bool
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HandleLRSM(uint64_t status, std::array< EncryptedFrame, 8 >& frames,
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AbstractRouter* r) = 0;
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uint64_t
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NextSeqNo()
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{
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return m_SequenceNum++;
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}
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protected:
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uint64_t m_SequenceNum = 0;
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};
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using HopHandler_ptr = std::shared_ptr< IHopHandler >;
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} // namespace path
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} // namespace llarp
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#endif
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