mirror of
https://github.com/PurpleI2P/i2pd.git
synced 2025-04-30 12:47:48 +02:00
246 lines
9.5 KiB
C++
246 lines
9.5 KiB
C++
/*
|
|
* Copyright (c) 2013-2022, 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 NETDB_H__
|
|
#define NETDB_H__
|
|
// this file is called NetDb.hpp to resolve conflict with libc's netdb.h on case insensitive fs
|
|
#include <inttypes.h>
|
|
#include <set>
|
|
#include <unordered_map>
|
|
#include <list>
|
|
#include <string>
|
|
#include <thread>
|
|
#include <mutex>
|
|
|
|
#include "Base.h"
|
|
#include "Gzip.h"
|
|
#include "FS.h"
|
|
#include "Queue.h"
|
|
#include "I2NPProtocol.h"
|
|
#include "RouterInfo.h"
|
|
#include "LeaseSet.h"
|
|
#include "Tunnel.h"
|
|
#include "TunnelPool.h"
|
|
#include "Reseed.h"
|
|
#include "NetDbRequests.h"
|
|
#include "Family.h"
|
|
#include "version.h"
|
|
#include "util.h"
|
|
|
|
namespace i2p {
|
|
namespace data {
|
|
const int NETDB_MIN_ROUTERS = 90;
|
|
const int NETDB_MIN_FLOODFILLS = 5;
|
|
const int NETDB_FLOODFILL_EXPIRATION_TIMEOUT = 60 * 60; // 1 hour, in seconds
|
|
const int NETDB_INTRODUCEE_EXPIRATION_TIMEOUT = 65 * 60;
|
|
const int NETDB_MIN_EXPIRATION_TIMEOUT = 90 * 60; // 1.5 hours
|
|
const int NETDB_MAX_EXPIRATION_TIMEOUT = 27 * 60 * 60; // 27 hours
|
|
const int NETDB_MAX_OFFLINE_EXPIRATION_TIMEOUT = 180; // in days
|
|
const int NETDB_PUBLISH_INTERVAL = 60 * 40;
|
|
const int NETDB_PUBLISH_CONFIRMATION_TIMEOUT = 5; // in seconds
|
|
const int NETDB_MAX_PUBLISH_EXCLUDED_FLOODFILLS = 15;
|
|
const int NETDB_MIN_HIGHBANDWIDTH_VERSION = MAKE_VERSION_NUMBER(0, 9, 36); // 0.9.36
|
|
const int NETDB_MIN_FLOODFILL_VERSION = MAKE_VERSION_NUMBER(0, 9, 38); // 0.9.38
|
|
const int NETDB_MIN_SHORT_TUNNEL_BUILD_VERSION = MAKE_VERSION_NUMBER(0, 9, 51); // 0.9.51
|
|
|
|
/** function for visiting a leaseset stored in a floodfill */
|
|
typedef std::function<void(const IdentHash, std::shared_ptr<LeaseSet>)> LeaseSetVisitor;
|
|
|
|
/** function for visiting a router info we have locally */
|
|
typedef std::function<void(std::shared_ptr<const i2p::data::RouterInfo>)> RouterInfoVisitor;
|
|
|
|
/** function for visiting a router info and determining if we want to use it */
|
|
typedef std::function<bool(std::shared_ptr<const i2p::data::RouterInfo>)> RouterInfoFilter;
|
|
|
|
class NetDb {
|
|
public:
|
|
|
|
NetDb();
|
|
|
|
~NetDb();
|
|
|
|
void Start();
|
|
|
|
void Stop();
|
|
|
|
std::shared_ptr<const RouterInfo> AddRouterInfo(const uint8_t *buf, int len);
|
|
|
|
bool AddRouterInfo(const IdentHash &ident, const uint8_t *buf, int len);
|
|
|
|
bool AddLeaseSet(const IdentHash &ident, const uint8_t *buf, int len);
|
|
|
|
bool AddLeaseSet2(const IdentHash &ident, const uint8_t *buf, int len, uint8_t storeType);
|
|
|
|
std::shared_ptr<RouterInfo> FindRouter(const IdentHash &ident) const;
|
|
|
|
std::shared_ptr<LeaseSet> FindLeaseSet(const IdentHash &destination) const;
|
|
|
|
std::shared_ptr<RouterProfile> FindRouterProfile(const IdentHash &ident) const;
|
|
|
|
void RequestDestination(const IdentHash &destination,
|
|
RequestedDestination::RequestComplete requestComplete = nullptr,
|
|
bool direct = true);
|
|
|
|
void RequestDestinationFrom(const IdentHash &destination, const IdentHash &from, bool exploritory,
|
|
RequestedDestination::RequestComplete requestComplete = nullptr);
|
|
|
|
void HandleDatabaseStoreMsg(std::shared_ptr<const I2NPMessage> msg);
|
|
|
|
void HandleDatabaseSearchReplyMsg(std::shared_ptr<const I2NPMessage> msg);
|
|
|
|
void HandleDatabaseLookupMsg(std::shared_ptr<const I2NPMessage> msg);
|
|
|
|
void HandleNTCP2RouterInfoMsg(std::shared_ptr<const I2NPMessage> m);
|
|
|
|
void HandleDeliveryStatusMsg(std::shared_ptr<const I2NPMessage> msg);
|
|
|
|
std::shared_ptr<const RouterInfo> GetRandomRouter() const;
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
GetRandomRouter(std::shared_ptr<const RouterInfo> compatibleWith, bool reverse) const;
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
GetHighBandwidthRandomRouter(std::shared_ptr<const RouterInfo> compatibleWith, bool reverse) const;
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
GetRandomPeerTestRouter(bool v4, const std::set<IdentHash> &excluded) const;
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
GetRandomSSU2PeerTestRouter(bool v4, const std::set<IdentHash> &excluded) const;
|
|
|
|
std::shared_ptr<const RouterInfo> GetRandomSSUV6Router() const; // TODO: change to v6 peer test later
|
|
std::shared_ptr<const RouterInfo> GetRandomIntroducer(bool v4, const std::set<IdentHash> &excluded) const;
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
GetRandomSSU2Introducer(bool v4, const std::set<IdentHash> &excluded) const;
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
GetClosestFloodfill(const IdentHash &destination, const std::set<IdentHash> &excluded,
|
|
bool closeThanUsOnly = false) const;
|
|
|
|
std::vector<IdentHash> GetClosestFloodfills(const IdentHash &destination, size_t num,
|
|
std::set<IdentHash> &excluded,
|
|
bool closeThanUsOnly = false) const;
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
GetClosestNonFloodfill(const IdentHash &destination, const std::set<IdentHash> &excluded) const;
|
|
|
|
std::shared_ptr<const RouterInfo> GetRandomRouterInFamily(FamilyID fam) const;
|
|
|
|
void SetUnreachable(const IdentHash &ident, bool unreachable);
|
|
|
|
void PostI2NPMsg(std::shared_ptr<const I2NPMessage> msg);
|
|
|
|
/** set hidden mode, aka don't publish our RI to netdb and don't explore */
|
|
void SetHidden(bool hide);
|
|
|
|
void Reseed();
|
|
|
|
Families &GetFamilies() { return m_Families; };
|
|
|
|
// for web interface
|
|
int GetNumRouters() const { return m_RouterInfos.size(); };
|
|
|
|
int GetNumFloodfills() const { return m_Floodfills.size(); };
|
|
|
|
int GetNumLeaseSets() const { return m_LeaseSets.size(); };
|
|
|
|
/** visit all lease sets we currently store */
|
|
void VisitLeaseSets(LeaseSetVisitor v);
|
|
|
|
/** visit all router infos we have currently on disk, usually insanely expensive, does not access in memory RI */
|
|
void VisitStoredRouterInfos(RouterInfoVisitor v);
|
|
|
|
/** visit all router infos we have loaded in memory, cheaper than VisitLocalRouterInfos but locks access while visiting */
|
|
void VisitRouterInfos(RouterInfoVisitor v);
|
|
|
|
/** visit N random router that match using filter, then visit them with a visitor, return number of RouterInfos that were visited */
|
|
size_t VisitRandomRouterInfos(RouterInfoFilter f, RouterInfoVisitor v, size_t n);
|
|
|
|
void ClearRouterInfos() { m_RouterInfos.clear(); };
|
|
|
|
std::shared_ptr<RouterInfo::Buffer>
|
|
NewRouterInfoBuffer() { return m_RouterInfoBuffersPool.AcquireSharedMt(); };
|
|
|
|
void PopulateRouterInfoBuffer(std::shared_ptr<RouterInfo> r);
|
|
|
|
std::shared_ptr<Lease> NewLease(const Lease &lease) { return m_LeasesPool.AcquireSharedMt(lease); };
|
|
|
|
uint32_t GetPublishReplyToken() const { return m_PublishReplyToken; };
|
|
|
|
private:
|
|
|
|
void Load();
|
|
|
|
bool LoadRouterInfo(const std::string &path, uint64_t ts);
|
|
|
|
void SaveUpdated();
|
|
|
|
void Run(); // exploratory thread
|
|
void Explore(int numDestinations);
|
|
|
|
void Publish();
|
|
|
|
void Flood(const IdentHash &ident, std::shared_ptr<I2NPMessage> floodMsg);
|
|
|
|
void ManageLeaseSets();
|
|
|
|
void ManageRequests();
|
|
|
|
void ReseedFromFloodfill(const RouterInfo &ri, int numRouters = 40, int numFloodfills = 20);
|
|
|
|
std::shared_ptr<const RouterInfo> AddRouterInfo(const uint8_t *buf, int len, bool &updated);
|
|
|
|
std::shared_ptr<const RouterInfo>
|
|
AddRouterInfo(const IdentHash &ident, const uint8_t *buf, int len, bool &updated);
|
|
|
|
template<typename Filter>
|
|
std::shared_ptr<const RouterInfo> GetRandomRouter(Filter filter) const;
|
|
|
|
private:
|
|
|
|
mutable std::mutex m_LeaseSetsMutex;
|
|
std::unordered_map<IdentHash, std::shared_ptr<LeaseSet> > m_LeaseSets;
|
|
mutable std::mutex m_RouterInfosMutex;
|
|
std::unordered_map<IdentHash, std::shared_ptr<RouterInfo> > m_RouterInfos;
|
|
mutable std::mutex m_FloodfillsMutex;
|
|
std::list<std::shared_ptr<RouterInfo> > m_Floodfills;
|
|
|
|
bool m_IsRunning;
|
|
std::thread *m_Thread;
|
|
i2p::util::Queue<std::shared_ptr<const I2NPMessage> > m_Queue; // of I2NPDatabaseStoreMsg
|
|
|
|
GzipInflator m_Inflator;
|
|
Reseeder *m_Reseeder;
|
|
Families m_Families;
|
|
i2p::fs::HashedStorage m_Storage;
|
|
|
|
friend class NetDbRequests;
|
|
|
|
NetDbRequests m_Requests;
|
|
|
|
bool m_PersistProfiles;
|
|
|
|
/** router info we are bootstrapping from or nullptr if we are not currently doing that*/
|
|
std::shared_ptr<RouterInfo> m_FloodfillBootstrap;
|
|
|
|
/** true if in hidden mode */
|
|
bool m_HiddenMode;
|
|
|
|
std::set<IdentHash> m_PublishExcluded;
|
|
uint32_t m_PublishReplyToken = 0;
|
|
|
|
i2p::util::MemoryPoolMt<RouterInfo::Buffer> m_RouterInfoBuffersPool;
|
|
i2p::util::MemoryPoolMt<Lease> m_LeasesPool;
|
|
};
|
|
|
|
extern NetDb netdb;
|
|
}
|
|
}
|
|
|
|
#endif
|