Mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd.git synced 2025-04-28 11:47:48 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

send ack

Browse source
This commit is contained in:
orignal 2014-02-07 15:47:10 -05:00
parent 656392fe1e
commit 1c1103dcce
2 changed files with 30 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

22
SSU.cpp
View file

@ -382,7 +382,7 @@ namespace ssu
uint16_t fragmentSize = fragmentInfo & 0x1FFF; // bits 0 - 13
bool isLast = fragmentInfo & 0x010000; // bit 16
uint8_t fragmentNum = fragmentInfo >> 17; // bits 23 - 17
LogPrint ("SSU data fragment ", (int)fragmentNum, " of message ", msgID, " size=", (int)fragmentSize, isLast ? " last" : " non-last");
LogPrint ("SSU data fragment ", (int)fragmentNum, " of message ", msgID, " size=", (int)fragmentSize, isLast ? " last" : " non-last");
I2NPMessage * msg = nullptr;
if (fragmentNum > 0) // follow-up fragment
{
@ -414,15 +414,35 @@ namespace ssu
m_IncomleteMessages.erase (msgID);
msg->FromSSU (msgID);
i2p::HandleI2NPMessage (msg, false);
SendMsgAck (msgID);
}
}
buf += fragmentSize;
}
}
void SSUSession::SendMsgAck (uint32_t msgID)
{
uint8_t buf[48]; // actual length is 44 = 37 + 7 but pad it to multiple of 16
uint8_t iv[16];
*buf = DATA_FLAG_EXPLICIT_ACKS_INCLUDED; // flag
buf[1] = 1; // number of ACKs
*(uint32_t *)(buf + 2) = htobe32 (msgID); // msgID
buf[6] = 0; // number of fragments
CryptoPP::RandomNumberGenerator& rnd = i2p::context.GetRandomNumberGenerator ();
rnd.GenerateBlock (iv, 16); // random iv
// encrypt message with session key
FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, 48, m_SessionKey, iv, m_MacKey);
m_State = eSessionStateConfirmedSent;
m_Server->Send (buf, 48, m_RemoteEndpoint);
}
SSUServer::SSUServer (boost::asio::io_service& service, int port):
m_Endpoint (boost::asio::ip::udp::v4 (), port), m_Socket (service, m_Endpoint)
{
m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (65535));
m_Socket.set_option (boost::asio::socket_base::send_buffer_size (65535));
}
SSUServer::~SSUServer ()