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check if we connected recently to an endpoint before sending peer test

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orignal 2024-09-17 21:49:23 -04:00
parent ca4db7aab2
commit f20391d460
3 changed files with 45 additions and 15 deletions
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8
libi2pd/SSU2.h
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@ -39,6 +39,7 @@ namespace transport
const int SSU2_KEEP_ALIVE_INTERVAL = 15; // in seconds
const int SSU2_KEEP_ALIVE_INTERVAL_VARIANCE = 4; // in seconds
const int SSU2_PROXY_CONNECT_RETRY_TIMEOUT = 30; // in seconds
const int SSU2_HOLE_PUNCH_EXPIRATION = 20; // in seconds
class SSU2Server: private i2p::util::RunnableServiceWithWork
{
@ -72,6 +73,8 @@ namespace transport
bool UsesProxy () const { return m_IsThroughProxy; };
bool IsSupported (const boost::asio::ip::address& addr) const;
uint16_t GetPort (bool v4) const;
bool IsConnectedRecently (const boost::asio::ip::udp::endpoint& ep) const;
void AddConnectedRecently (const boost::asio::ip::udp::endpoint& ep, uint64_t ts);
std::mt19937& GetRng () { return m_Rng; }
bool IsMaxNumIntroducers (bool v4) const { return (v4 ? m_Introducers.size () : m_IntroducersV6.size ()) >= SSU2_MAX_NUM_INTRODUCERS; }
bool IsSyncClockFromPeers () const { return m_IsSyncClockFromPeers; };
@ -160,7 +163,7 @@ namespace transport
std::map<boost::asio::ip::udp::endpoint, std::shared_ptr<SSU2Session> > m_PendingOutgoingSessions;
mutable std::mutex m_PendingOutgoingSessionsMutex;
std::map<boost::asio::ip::udp::endpoint, std::pair<uint64_t, uint32_t> > m_IncomingTokens, m_OutgoingTokens; // remote endpoint -> (token, expires in seconds)
std::map<uint32_t, std::shared_ptr<SSU2Session> > m_Relays; // we are introducer, relay tag -> session
std::unordered_map<uint32_t, std::shared_ptr<SSU2Session> > m_Relays; // we are introducer, relay tag -> session
std::list<i2p::data::IdentHash> m_Introducers, m_IntroducersV6; // introducers we are connected to
i2p::util::MemoryPoolMt<Packet> m_PacketsPool;
i2p::util::MemoryPool<SSU2SentPacket> m_SentPacketsPool;
@ -174,7 +177,8 @@ namespace transport
int64_t m_PendingTimeOffset; // during peer test
std::shared_ptr<const i2p::data::IdentityEx> m_PendingTimeOffsetFrom;
std::mt19937 m_Rng;
std::map<boost::asio::ip::udp::endpoint, uint64_t> m_ConnectedRecently; // endpoint -> last activity time in seconds
// proxy
bool m_IsThroughProxy;
uint8_t m_UDPRequestHeader[SOCKS5_UDP_IPV6_REQUEST_HEADER_SIZE];