mirror of
https://github.com/PurpleI2P/i2pd.git
synced 2024-11-16 00:12:43 +00:00
183 lines
5.7 KiB
C++
183 lines
5.7 KiB
C++
#ifndef ROUTER_INFO_H__
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#define ROUTER_INFO_H__
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#include <inttypes.h>
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#include <string>
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#include <map>
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#include <vector>
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#include <iostream>
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#include <boost/asio.hpp>
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#include "Identity.h"
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#include "Profiling.h"
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namespace i2p
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{
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namespace data
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{
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const char CAPS_FLAG_FLOODFILL = 'f';
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const char CAPS_FLAG_HIDDEN = 'H';
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const char CAPS_FLAG_REACHABLE = 'R';
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const char CAPS_FLAG_UNREACHABLE = 'U';
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const char CAPS_FLAG_LOW_BANDWIDTH1 = 'K';
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const char CAPS_FLAG_LOW_BANDWIDTH2 = 'L';
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const char CAPS_FLAG_HIGH_BANDWIDTH1 = 'M';
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const char CAPS_FLAG_HIGH_BANDWIDTH2 = 'N';
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const char CAPS_FLAG_HIGH_BANDWIDTH3 = 'O';
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const char CAPS_FLAG_SSU_TESTING = 'B';
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const char CAPS_FLAG_SSU_INTRODUCER = 'C';
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const int MAX_RI_BUFFER_SIZE = 2048;
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class RouterInfo: public RoutingDestination
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{
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public:
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enum SupportedTranports
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{
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eNTCPV4 = 0x01,
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eNTCPV6 = 0x02,
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eSSUV4 = 0x04,
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eSSUV6 = 0x08
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};
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enum Caps
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{
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eFloodfill = 0x01,
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eHighBandwidth = 0x02,
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eReachable = 0x04,
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eSSUTesting = 0x08,
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eSSUIntroducer = 0x10,
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eHidden = 0x20,
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eUnreachable = 0x40
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};
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enum TransportStyle
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{
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eTransportUnknown = 0,
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eTransportNTCP,
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eTransportSSU
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};
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struct Introducer
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{
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boost::asio::ip::address iHost;
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int iPort;
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Tag<32> iKey;
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uint32_t iTag;
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};
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struct Address
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{
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TransportStyle transportStyle;
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boost::asio::ip::address host;
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std::string addressString;
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int port, mtu;
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uint64_t date;
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uint8_t cost;
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// SSU only
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Tag<32> key; // intro key for SSU
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std::vector<Introducer> introducers;
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bool IsCompatible (const boost::asio::ip::address& other) const
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{
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return (host.is_v4 () && other.is_v4 ()) ||
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(host.is_v6 () && other.is_v6 ());
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}
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};
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RouterInfo (const std::string& fullPath);
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RouterInfo (): m_Buffer (nullptr) { };
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RouterInfo (const RouterInfo& ) = default;
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RouterInfo& operator=(const RouterInfo& ) = default;
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RouterInfo (const uint8_t * buf, int len);
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~RouterInfo ();
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const IdentityEx& GetRouterIdentity () const { return m_RouterIdentity; };
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void SetRouterIdentity (const IdentityEx& identity);
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std::string GetIdentHashBase64 () const { return GetIdentHash ().ToBase64 (); };
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std::string GetIdentHashAbbreviation () const { return GetIdentHash ().ToBase64 ().substr (0, 4); };
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uint64_t GetTimestamp () const { return m_Timestamp; };
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std::vector<Address>& GetAddresses () { return m_Addresses; };
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const Address * GetNTCPAddress (bool v4only = true) const;
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const Address * GetSSUAddress (bool v4only = true) const;
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const Address * GetSSUV6Address () const;
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void AddNTCPAddress (const char * host, int port);
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void AddSSUAddress (const char * host, int port, const uint8_t * key, int mtu = 0);
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bool AddIntroducer (const Address * address, uint32_t tag);
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bool RemoveIntroducer (const boost::asio::ip::udp::endpoint& e);
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void SetProperty (const std::string& key, const std::string& value); // called from RouterContext only
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void DeleteProperty (const std::string& key); // called from RouterContext only
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void ClearProperties () { m_Properties.clear (); };
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bool IsFloodfill () const;
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bool IsNTCP (bool v4only = true) const;
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bool IsSSU (bool v4only = true) const;
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bool IsV6 () const;
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void EnableV6 ();
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void DisableV6 ();
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bool IsCompatible (const RouterInfo& other) const { return m_SupportedTransports & other.m_SupportedTransports; };
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bool UsesIntroducer () const;
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bool IsIntroducer () const { return m_Caps & eSSUIntroducer; };
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bool IsPeerTesting () const { return m_Caps & eSSUTesting; };
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bool IsHidden () const { return m_Caps & eHidden; };
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bool IsHighBandwidth () const { return m_Caps & RouterInfo::eHighBandwidth; };
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uint8_t GetCaps () const { return m_Caps; };
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void SetCaps (uint8_t caps);
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void SetCaps (const char * caps);
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void SetUnreachable (bool unreachable) { m_IsUnreachable = unreachable; };
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bool IsUnreachable () const { return m_IsUnreachable; };
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const uint8_t * GetBuffer () const { return m_Buffer; };
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const uint8_t * LoadBuffer (); // load if necessary
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int GetBufferLen () const { return m_BufferLen; };
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void CreateBuffer (const PrivateKeys& privateKeys);
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bool IsUpdated () const { return m_IsUpdated; };
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void SetUpdated (bool updated) { m_IsUpdated = updated; };
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void SaveToFile (const std::string& fullPath);
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std::shared_ptr<RouterProfile> GetProfile () const;
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void SaveProfile () { if (m_Profile) m_Profile->Save (); };
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void Update (const uint8_t * buf, int len);
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void DeleteBuffer () { delete[] m_Buffer; m_Buffer = nullptr; };
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// implements RoutingDestination
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const IdentHash& GetIdentHash () const { return m_RouterIdentity.GetIdentHash (); };
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const uint8_t * GetEncryptionPublicKey () const { return m_RouterIdentity.GetStandardIdentity ().publicKey; };
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bool IsDestination () const { return false; };
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private:
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bool LoadFile ();
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void ReadFromFile ();
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void ReadFromStream (std::istream& s);
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void ReadFromBuffer (bool verifySignature);
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void WriteToStream (std::ostream& s);
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size_t ReadString (char * str, std::istream& s);
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void WriteString (const std::string& str, std::ostream& s);
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void ExtractCaps (const char * value);
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const Address * GetAddress (TransportStyle s, bool v4only, bool v6only = false) const;
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void UpdateCapsProperty ();
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private:
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std::string m_FullPath;
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IdentityEx m_RouterIdentity;
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uint8_t * m_Buffer;
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int m_BufferLen;
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uint64_t m_Timestamp;
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std::vector<Address> m_Addresses;
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std::map<std::string, std::string> m_Properties;
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bool m_IsUpdated, m_IsUnreachable;
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uint8_t m_SupportedTransports, m_Caps;
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mutable std::shared_ptr<RouterProfile> m_Profile;
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};
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}
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}
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#endif
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