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path reset flag for Datagram3
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This commit is contained in:
orignal 2025-10-08 13:28:02 -04:00
parent da399054c0
commit d10a7fe8e5
1 changed files with 12 additions and 1 deletions
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11
libi2pd_client/UDPTunnel.cpp
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@ -19,6 +19,9 @@ namespace client
{
constexpr std::string_view UDP_SESSION_SEQN { "seqn" };
constexpr std::string_view UDP_SESSION_ACKED { "acked" };
constexpr std::string_view UDP_SESSION_FLAGS { "flags" };
constexpr uint8_t UDP_SESSION_FLAG_RESET_PATH = 0x01;
void I2PUDPServerTunnel::HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort,
const uint8_t * buf, size_t len, const i2p::util::Mapping * options)
@ -34,6 +37,9 @@ namespace client
LogPrint (eLogInfo, "UDP Server: Send exception: ", ec.message (), " to ", m_RemoteEndpoint);
if (options)
{
uint8_t flags = 0;
if (options->Get (UDP_SESSION_FLAGS, flags) && (flags & UDP_SESSION_FLAG_RESET_PATH))
m_LastSession->GetDatagramSession ()->DropSharedRoutingPath ();
uint32_t seqn = 0;
if (options->Get (UDP_SESSION_SEQN, seqn) && seqn > m_LastSession->m_LastReceivedPacketNum)
{
@ -383,17 +389,22 @@ namespace client
{
if (m_DatagramVersion == i2p::datagram::eDatagramV3)
{
uint8_t flags = 0;
if (!m_UnackedDatagrams.empty () && (ts > m_UnackedDatagrams.front ().second + I2P_UDP_MAX_UNACKED_DATAGRAM_TIME ||
m_NextSendPacketNum > m_UnackedDatagrams.front ().first + I2P_UDP_MAX_NUM_UNACKED_DATAGRAMS))
{
m_UnackedDatagrams.clear ();
session->DropSharedRoutingPath ();
m_RTT = 0;
flags |= UDP_SESSION_FLAG_RESET_PATH;
}
m_UnackedDatagrams.push_back ({ m_NextSendPacketNum, ts });
i2p::util::Mapping options;
options.Put (UDP_SESSION_SEQN, m_NextSendPacketNum);
if (m_LastReceivedPacketNum > 0)
options.Put (UDP_SESSION_ACKED, m_LastReceivedPacketNum);
if (flags)
options.Put (UDP_SESSION_FLAGS, flags);
m_LocalDest->GetDatagramDestination ()->SendDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort, &options);
}
else