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limit mininal received packet size to 40 bytes
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parent
b4484c8e8f
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@ -283,8 +283,15 @@ namespace transport
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// but better to find out which host were sent it and mark that router as unreachable
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{
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i2p::transport::transports.UpdateReceivedBytes (bytes_transferred);
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if (bytes_transferred < SSU2_MIN_RECEIVED_PACKET_SIZE)
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{
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// drop too short packets
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m_PacketsPool.ReleaseMt (packet);
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Receive (socket);
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return;
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}
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packet->len = bytes_transferred;
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boost::system::error_code ec;
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size_t moreBytes = socket.available (ec);
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if (!ec && moreBytes)
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2022-2023, The PurpleI2P Project
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* Copyright (c) 2022-2024, The PurpleI2P Project
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*
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* This file is part of Purple i2pd project and licensed under BSD3
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*
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@ -27,6 +27,7 @@ namespace transport
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const size_t SSU2_SOCKET_RECEIVE_BUFFER_SIZE = 0x1FFFF; // 128K
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const size_t SSU2_SOCKET_SEND_BUFFER_SIZE = 0x1FFFF; // 128K
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const size_t SSU2_MAX_NUM_INTRODUCERS = 3;
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const size_t SSU2_MIN_RECEIVED_PACKET_SIZE = 40; // 16 byte short header + 8 byte minimum payload + 16 byte MAC
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const int SSU2_TO_INTRODUCER_SESSION_DURATION = 3600; // 1 hour
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const int SSU2_TO_INTRODUCER_SESSION_EXPIRATION = 4800; // 80 minutes
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const int SSU2_KEEP_ALIVE_INTERVAL = 15; // in seconds
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