Mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd.git synced 2025-04-27 11:17:49 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

implement streaming limiting (initial)

Browse source
This commit is contained in:
Jeff Becker 2016-07-28 11:16:29 -04:00
parent 17bfa35f77
commit aa3a93b6a0
No known key found for this signature in database
GPG key ID: AB950234D6EA286B
5 changed files with 129 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

37
Streaming.h
View file

@ -51,6 +51,22 @@ namespace stream
const int INITIAL_RTO = 9000; // in milliseconds
const size_t MAX_PENDING_INCOMING_BACKLOG = 128;
const int PENDING_INCOMING_TIMEOUT = 10; // in seconds
/** i2cp option for limiting inbound stremaing connections */
const char I2CP_PARAM_STREAMING_MAX_CONNS_PER_MIN[] = "i2p.streaming.maxConnsPerMinute";
/** default maximum connections attempts per minute per destination */
const uint32_t DEFAULT_MAX_CONNS_PER_MIN = 600;
/**
* max banned destinations per local destination
* TODO: make configurable
*/
const uint16_t MAX_BANNED_CONNS = 9999;
/**
* length of a ban in ms
* TODO: make configurable
*/
const uint64_t DEFAULT_BAN_INTERVAL = 60 * 60 * 1000;
struct Packet
{
@ -210,12 +226,22 @@ namespace stream
void HandleDataMessagePayload (const uint8_t * buf, size_t len);
std::shared_ptr<I2NPMessage> CreateDataMessage (const uint8_t * payload, size_t len, uint16_t toPort);
/** set max connections per minute per destination */
void SetMaxConnsPerMinute(const uint32_t conns);
private:
void HandleNextPacket (Packet * packet);
std::shared_ptr<Stream> CreateNewIncomingStream ();
void HandlePendingIncomingTimer (const boost::system::error_code& ecode);
/** handle cleaning up connection tracking for ratelimits */
void HandleConnTrack(const boost::system::error_code& ecode);
bool DropNewStream(const i2p::data::IdentHash & ident);
void ScheduleConnTrack();
private:
std::shared_ptr<i2p::client::ClientDestination> m_Owner;
@ -227,7 +253,16 @@ namespace stream
std::list<std::shared_ptr<Stream> > m_PendingIncomingStreams;
boost::asio::deadline_timer m_PendingIncomingTimer;
std::map<uint32_t, std::list<Packet *> > m_SavedPackets; // receiveStreamID->packets, arrived before SYN
std::mutex m_ConnsMutex;
/** how many connections per minute did each identity have */
std::map<i2p::data::IdentHash, uint32_t> m_Conns;
boost::asio::deadline_timer m_ConnTrackTimer;
uint32_t m_ConnsPerMinute;
/** banned identities */
std::vector<i2p::data::IdentHash> m_Banned;
uint64_t m_LastBanClear;
public:
i2p::data::GzipInflator m_Inflator;