mirror of
https://github.com/oxen-io/lokinet.git
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9e9c1ea732
Lots of code was using 32-byte nonces for xchacha20 symmetric encryption, but this just means 8 extra bytes per packet wasted as chacha is only using the first 24 bytes of that nonce anyway. Changing this resulted in a lot of dead/dying code breaking, so this commit also removes a lot of that (and comments a couple places with TODO instead) Also nounce -> nonce where it came up.
74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
#pragma once
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#include "path_types.hpp"
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#include <llarp/crypto/types.hpp>
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#include <llarp/util/decaying_hashset.hpp>
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#include <llarp/util/types.hpp>
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#include <memory>
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#include <vector>
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struct llarp_buffer_t;
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namespace llarp
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{
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struct Router;
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namespace routing
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{
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struct AbstractRoutingMessage;
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}
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namespace path
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{
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std::string
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make_onion_payload(
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const SymmNonce& nonce, const PathID_t& path_id, const std::string_view& inner_payload);
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std::string
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make_onion_payload(
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const SymmNonce& nonce, const PathID_t& path_id, const ustring_view& inner_payload);
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struct AbstractHopHandler
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{
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virtual ~AbstractHopHandler() = default;
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virtual PathID_t
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RXID() const = 0;
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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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/// sends a control request along a path
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///
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/// performs the necessary onion encryption before sending.
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/// func will be called when a timeout occurs or a response is received.
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/// if a response is received, onion decryption is performed before func is called.
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///
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/// func is called with a bt-encoded response string (if applicable), and
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/// a timeout flag (if set, response string will be empty)
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virtual bool
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send_path_control_message(
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std::string method, std::string body, std::function<void(std::string)> func) = 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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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<AbstractHopHandler>;
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} // namespace path
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} // namespace llarp
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