mirror of
https://github.com/PurpleI2P/i2pd.git
synced 2025-04-30 12:47:48 +02:00
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*
|
|
* Copyright (c) 2013-2020, The PurpleI2P Project
|
|
*
|
|
* This file is part of Purple i2pd project and licensed under BSD3
|
|
*
|
|
* See full license text in LICENSE file at top of project tree
|
|
*/
|
|
|
|
#ifndef TUNNEL_BASE_H__
|
|
#define TUNNEL_BASE_H__
|
|
|
|
#include <inttypes.h>
|
|
#include <memory>
|
|
#include "Timestamp.h"
|
|
#include "I2NPProtocol.h"
|
|
#include "Identity.h"
|
|
|
|
namespace i2p {
|
|
namespace tunnel {
|
|
const size_t TUNNEL_DATA_MSG_SIZE = 1028;
|
|
const size_t TUNNEL_DATA_ENCRYPTED_SIZE = 1008;
|
|
const size_t TUNNEL_DATA_MAX_PAYLOAD_SIZE = 1003;
|
|
|
|
enum TunnelDeliveryType {
|
|
eDeliveryTypeLocal = 0,
|
|
eDeliveryTypeTunnel = 1,
|
|
eDeliveryTypeRouter = 2
|
|
};
|
|
struct TunnelMessageBlock {
|
|
TunnelDeliveryType deliveryType;
|
|
i2p::data::IdentHash hash;
|
|
uint32_t tunnelID;
|
|
std::shared_ptr<I2NPMessage> data;
|
|
};
|
|
|
|
class TunnelBase {
|
|
public:
|
|
|
|
TunnelBase(uint32_t tunnelID, uint32_t nextTunnelID, i2p::data::IdentHash nextIdent) :
|
|
m_TunnelID(tunnelID), m_NextTunnelID(nextTunnelID), m_NextIdent(nextIdent),
|
|
m_CreationTime(i2p::util::GetSecondsSinceEpoch()) {};
|
|
|
|
virtual ~TunnelBase() {};
|
|
|
|
virtual void Cleanup() {};
|
|
|
|
virtual void HandleTunnelDataMsg(std::shared_ptr<i2p::I2NPMessage> &&tunnelMsg) = 0;
|
|
|
|
virtual void SendTunnelDataMsg(std::shared_ptr<i2p::I2NPMessage> msg) = 0;
|
|
|
|
virtual void FlushTunnelDataMsgs() {};
|
|
|
|
virtual void EncryptTunnelMsg(std::shared_ptr<const I2NPMessage> in, std::shared_ptr<I2NPMessage> out) = 0;
|
|
|
|
uint32_t GetNextTunnelID() const { return m_NextTunnelID; };
|
|
|
|
const i2p::data::IdentHash &GetNextIdentHash() const { return m_NextIdent; };
|
|
|
|
virtual uint32_t GetTunnelID() const { return m_TunnelID; }; // as known at our side
|
|
|
|
uint32_t GetCreationTime() const { return m_CreationTime; };
|
|
|
|
void SetCreationTime(uint32_t t) { m_CreationTime = t; };
|
|
|
|
private:
|
|
|
|
uint32_t m_TunnelID, m_NextTunnelID;
|
|
i2p::data::IdentHash m_NextIdent;
|
|
uint32_t m_CreationTime; // seconds since epoch
|
|
};
|
|
|
|
struct TunnelCreationTimeCmp {
|
|
template<typename T>
|
|
bool operator()(const std::shared_ptr<T> &t1, const std::shared_ptr<T> &t2) const {
|
|
if (t1->GetCreationTime() != t2->GetCreationTime())
|
|
return t1->GetCreationTime() > t2->GetCreationTime();
|
|
else
|
|
return t1 < t2;
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
#endif
|