I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#ifndef ROUTER_CONTEXT_H__
#define ROUTER_CONTEXT_H__
#include <inttypes.h>
#include <string>
#include <memory>
#include <mutex>
#include <boost/asio.hpp>
#include "Identity.h"
#include "RouterInfo.h"
#include "Garlic.h"
namespace i2p
{
const char ROUTER_INFO[] = "router.info";
const char ROUTER_KEYS[] = "router.keys";
const int ROUTER_INFO_UPDATE_INTERVAL = 1800; // 30 minutes
enum RouterStatus
{
eRouterStatusOK = 0,
eRouterStatusTesting = 1,
eRouterStatusFirewalled = 2
};
class RouterContext: public i2p::garlic::GarlicDestination
{
public:
RouterContext ();
void Init ();
i2p::data::RouterInfo& GetRouterInfo () { return m_RouterInfo; };
std::shared_ptr<const i2p::data::RouterInfo> GetSharedRouterInfo () const
{
return std::shared_ptr<const i2p::data::RouterInfo> (&m_RouterInfo,
[](const i2p::data::RouterInfo *) {});
}
std::shared_ptr<i2p::garlic::GarlicDestination> GetSharedDestination ()
{
return std::shared_ptr<i2p::garlic::GarlicDestination> (this,
[](i2p::garlic::GarlicDestination *) {});
}
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uint32_t GetUptime () const;
uint32_t GetStartupTime () const { return m_StartupTime; };
uint64_t GetLastUpdateTime () const { return m_LastUpdateTime; };
uint64_t GetBandwidthLimit () const { return m_BandwidthLimit; };
RouterStatus GetStatus () const { return m_Status; };
void SetStatus (RouterStatus status);
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void UpdatePort (int port); // called from Daemon
void UpdateAddress (const boost::asio::ip::address& host); // called from SSU or Daemon
bool AddIntroducer (const i2p::data::RouterInfo::Introducer& introducer);
void RemoveIntroducer (const boost::asio::ip::udp::endpoint& e);
bool IsUnreachable () const;
void SetUnreachable ();
void SetReachable ();
bool IsFloodfill () const { return m_IsFloodfill; };
void SetFloodfill (bool floodfill);
void SetFamily (const std::string& family);
std::string GetFamily () const;
void SetBandwidth (int limit); /* in kilobytes */
void SetBandwidth (char L); /* by letter */
bool AcceptsTunnels () const { return m_AcceptsTunnels; };
void SetAcceptsTunnels (bool acceptsTunnels) { m_AcceptsTunnels = acceptsTunnels; };
bool SupportsV6 () const { return m_RouterInfo.IsV6 (); };
bool SupportsV4 () const { return m_RouterInfo.IsV4 (); };
void SetSupportsV6 (bool supportsV6);
void SetSupportsV4 (bool supportsV4);
void UpdateNTCPV6Address (const boost::asio::ip::address& host); // called from NTCP session
void UpdateStats ();
// implements LocalDestination
const i2p::data::PrivateKeys& GetPrivateKeys () const { return m_Keys; };
const uint8_t * GetEncryptionPrivateKey () const { return m_Keys.GetPrivateKey (); };
const uint8_t * GetEncryptionPublicKey () const { return GetIdentity ()->GetStandardIdentity ().publicKey; };
void SetLeaseSetUpdated () {};
// implements GarlicDestination
std::shared_ptr<const i2p::data::LocalLeaseSet> GetLeaseSet () { return nullptr; };
std::shared_ptr<i2p::tunnel::TunnelPool> GetTunnelPool () const;
void HandleI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr<i2p::tunnel::InboundTunnel> from);
// override GarlicDestination
void ProcessGarlicMessage (std::shared_ptr<I2NPMessage> msg);
void ProcessDeliveryStatusMessage (std::shared_ptr<I2NPMessage> msg);
private:
void CreateNewRouter ();
void NewRouterInfo ();
void UpdateRouterInfo ();
bool Load ();
void SaveKeys ();
private:
i2p::data::RouterInfo m_RouterInfo;
i2p::data::PrivateKeys m_Keys;
uint64_t m_LastUpdateTime;
bool m_AcceptsTunnels, m_IsFloodfill;
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uint64_t m_StartupTime; // in seconds since epoch
uint32_t m_BandwidthLimit; // allowed bandwidth
RouterStatus m_Status;
std::mutex m_GarlicMutex;
};
extern RouterContext context;
}
#endif