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I2P: End-to-End encrypted and anonymous Internet
https://i2pd.website/
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84 lines
2.5 KiB
84 lines
2.5 KiB
#ifndef STREAMING_H__ |
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#define STREAMING_H__ |
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#include <inttypes.h> |
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#include <map> |
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#include <cryptopp/dsa.h> |
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#include "Identity.h" |
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#include "LeaseSet.h" |
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#include "I2NPProtocol.h" |
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namespace i2p |
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{ |
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namespace stream |
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{ |
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const uint16_t PACKET_FLAG_SYNCHRONIZE = 0x0001; |
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const uint16_t PACKET_FLAG_CLOSE = 0x0002; |
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const uint16_t PACKET_FLAG_RESET = 0x0004; |
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const uint16_t PACKET_FLAG_SIGNATURE_INCLUDED = 0x0008; |
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const uint16_t PACKET_FLAG_SIGNATURE_REQUESTED = 0x0010; |
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const uint16_t PACKET_FLAG_FROM_INCLUDED = 0x0020; |
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const uint16_t PACKET_FLAG_DELAY_REQUESTED = 0x0040; |
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const uint16_t PACKET_FLAG_MAX_PACKET_SIZE_INCLUDED = 0x0080; |
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const uint16_t PACKET_FLAG_PROFILE_INTERACTIVE = 0x0100; |
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const uint16_t PACKET_FLAG_ECHO = 0x0200; |
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const uint16_t PACKET_FLAG_NO_ACK = 0x0400; |
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const size_t STREAMING_MTU = 1730; |
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class StreamingDestination; |
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class Stream |
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{ |
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public: |
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Stream (StreamingDestination * local, const i2p::data::LeaseSet * remote); |
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uint32_t GetSendStreamID () const { return m_SendStreamID; }; |
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uint32_t GetRecvStreamID () const { return m_RecvStreamID; }; |
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const i2p::data::LeaseSet * GetRemoteLeaseSet () const { return m_RemoteLeaseSet; }; |
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bool IsEstablished () const { return !m_SendStreamID; }; |
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void HandleNextPacket (const uint8_t * buf, size_t len); |
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size_t Send (uint8_t * buf, size_t len, int timeout); // timeout in seconds |
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private: |
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uint32_t m_SendStreamID, m_RecvStreamID, m_SequenceNumber; |
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StreamingDestination * m_LocalDestination; |
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const i2p::data::LeaseSet * m_RemoteLeaseSet; |
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}; |
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class StreamingDestination |
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{ |
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public: |
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StreamingDestination (); |
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const i2p::data::Keys& GetKeys () const { return m_Keys; }; |
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const i2p::data::Identity& GetIdentity () const { return m_Identity; }; |
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I2NPMessage * CreateLeaseSet () const; |
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void Sign (uint8_t * buf, int len, uint8_t * signature) const; |
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Stream * CreateNewStream (const i2p::data::LeaseSet * remote); |
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void DeleteStream (Stream * stream); |
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void HandleNextPacket (const uint8_t * buf, size_t len); |
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private: |
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std::map<uint32_t, Stream *> m_Streams; |
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i2p::data::Keys m_Keys; |
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i2p::data::Identity m_Identity; |
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i2p::data::IdentHash m_IdentHash; |
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CryptoPP::DSA::PrivateKey m_SigningPrivateKey; |
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}; |
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Stream * CreateStream (const i2p::data::LeaseSet * remote); |
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void CloseStream (Stream * stream); |
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// assuming data is I2CP message |
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void HandleDataMessage (i2p::data::IdentHash * destination, const uint8_t * buf, size_t len); |
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I2NPMessage * CreateDataMessage (Stream * s, uint8_t * payload, size_t len); |
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} |
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} |
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#endif
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