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resend peer test responses

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orignal 2024-09-29 18:17:49 -04:00
parent c2234599cd
commit ba41f7107d
1 changed files with 27 additions and 18 deletions
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45
libi2pd/SSU2Session.cpp
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@ -2171,11 +2171,14 @@ namespace transport
else
{
// Charlie not found, send error back to Alice
uint8_t payload[SSU2_MAX_PACKET_SIZE], zeroHash[32] = {0};
size_t payloadSize = CreatePeerTestBlock (payload, m_MaxPayloadSize, 4,
auto packet = m_Server.GetSentPacketsPool ().AcquireShared ();
uint8_t zeroHash[32] = {0};
packet->payloadSize = CreatePeerTestBlock (packet->payload, m_MaxPayloadSize, 4,
eSSU2PeerTestCodeBobNoCharlieAvailable, zeroHash, buf + offset, len - offset);
payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize);
SendData (payload, payloadSize);
packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize);
uint32_t packetNum = SendData (packet->payload, packet->payloadSize);
packet->sendTime = ts;
m_SentPackets.emplace (packetNum, packet);
}
break;
}
@ -2241,11 +2244,13 @@ namespace transport
else
code = eSSU2PeerTestCodeCharlieAliceIsUnknown;
// send msg 3 back to Bob
uint8_t payload[SSU2_MAX_PACKET_SIZE];
size_t payloadSize = CreatePeerTestBlock (payload, m_MaxPayloadSize, 3,
auto packet = m_Server.GetSentPacketsPool ().AcquireShared ();
packet->payloadSize = CreatePeerTestBlock (packet->payload, m_MaxPayloadSize, 3,
code, nullptr, newSignedData.data (), newSignedData.size ());
payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize);
SendData (payload, payloadSize);
packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize);
uint32_t packetNum = SendData (packet->payload, packet->payloadSize);
packet->sendTime = ts;
m_SentPackets.emplace (packetNum, packet);
break;
}
case 3: // Bob from Charlie
@ -2253,25 +2258,29 @@ namespace transport
auto aliceSession = m_Server.GetPeerTest (nonce);
if (aliceSession && aliceSession->IsEstablished ())
{
uint8_t payload[SSU2_MAX_PACKET_SIZE];
auto packet = m_Server.GetSentPacketsPool ().AcquireShared ();
// Charlie's RouterInfo
auto r = i2p::data::netdb.FindRouter (GetRemoteIdentity ()->GetIdentHash ());
if (r && (r->IsUnreachable () || !i2p::data::netdb.PopulateRouterInfoBuffer (r))) r = nullptr;
size_t payloadSize = r ? CreateRouterInfoBlock (payload, m_MaxPayloadSize - len - 32, r) : 0;
if (!payloadSize && r)
packet->payloadSize = r ? CreateRouterInfoBlock (packet->payload, m_MaxPayloadSize - len - 32, r) : 0;
if (!packet->payloadSize && r)
aliceSession->SendFragmentedMessage (CreateDatabaseStoreMsg (r));
if (payloadSize + len + 16 > m_MaxPayloadSize)
if (packet->payloadSize + len + 16 > m_MaxPayloadSize)
{
// doesn't fit one message, send RouterInfo in separate message
aliceSession->SendData (payload, payloadSize);
payloadSize = 0;
uint32_t packetNum = aliceSession->SendData (packet->payload, packet->payloadSize);
packet->sendTime = ts;
aliceSession->m_SentPackets.emplace (packetNum, packet);
packet = m_Server.GetSentPacketsPool ().AcquireShared ();
}
// PeerTest to Alice
payloadSize += CreatePeerTestBlock (payload + payloadSize, m_MaxPayloadSize, 4,
packet->payloadSize += CreatePeerTestBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize, 4,
(SSU2PeerTestCode)buf[1], GetRemoteIdentity ()->GetIdentHash (), buf + offset, len - offset);
if (payloadSize < m_MaxPayloadSize)
payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize);
aliceSession->SendData (payload, payloadSize);
if (packet->payloadSize < m_MaxPayloadSize)
packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize);
uint32_t packetNum = aliceSession->SendData (packet->payload, packet->payloadSize);
packet->sendTime = ts;
aliceSession->m_SentPackets.emplace (packetNum, packet);
}
else
LogPrint (eLogWarning, "SSU2: Unknown peer test 3 nonce ", nonce);