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Drop for tunnel and encrypted messages

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orignal 2024-01-30 15:41:57 -05:00
parent 85f5f5b91e
commit e40b656ecf
5 changed files with 21 additions and 6 deletions
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10
libi2pd/ECIESX25519AEADRatchetSession.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2023, The PurpleI2P Project
* Copyright (c) 2013-2024, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -1171,7 +1171,7 @@ namespace garlic
return m;
}
std::shared_ptr<I2NPMessage> WrapECIESX25519MessageForRouter (std::shared_ptr<const I2NPMessage> msg, const uint8_t * routerPublicKey)
std::shared_ptr<I2NPMessage> WrapECIESX25519MessageForRouter (std::shared_ptr<I2NPMessage> msg, const uint8_t * routerPublicKey)
{
// Noise_N, we are Alice, routerPublicKey is Bob's
i2p::crypto::NoiseSymmetricState noiseState;
@ -1205,6 +1205,12 @@ namespace garlic
htobe32buf (m->GetPayload (), offset);
m->len += offset + 4;
m->FillI2NPMessageHeader (eI2NPGarlic);
if (msg->onDrop)
{
// move onDrop to the wrapping I2NP messages
m->onDrop = msg->onDrop;
msg->onDrop = nullptr;
}
return m;
}
}

4
libi2pd/ECIESX25519AEADRatchetSession.h
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2021, The PurpleI2P Project
* Copyright (c) 2013-2024, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -246,7 +246,7 @@ namespace garlic
};
std::shared_ptr<I2NPMessage> WrapECIESX25519Message (std::shared_ptr<const I2NPMessage> msg, const uint8_t * key, uint64_t tag);
std::shared_ptr<I2NPMessage> WrapECIESX25519MessageForRouter (std::shared_ptr<const I2NPMessage> msg, const uint8_t * routerPublicKey);
std::shared_ptr<I2NPMessage> WrapECIESX25519MessageForRouter (std::shared_ptr<I2NPMessage> msg, const uint8_t * routerPublicKey);
}
}

1
libi2pd/NetDb.cpp
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@ -749,6 +749,7 @@ namespace data
if (outbound && inbound)
{
auto msg = dest->CreateRequestMessage (floodfill, inbound);
msg->onDrop = [this, dest]() { this->m_Requests.SendNextRequest (dest); };
outbound->SendTunnelDataMsgTo (floodfill->GetIdentHash (), 0,
i2p::garlic::WrapECIESX25519MessageForRouter (msg, floodfill->GetIdentity ()->GetEncryptionPublicKey ()));
}

1
libi2pd/NetDbRequests.cpp
View File

@ -202,6 +202,7 @@ namespace data
{
LogPrint (eLogDebug, "NetDbReq: Try ", dest->GetDestination (), " at ", count, " floodfill ", nextFloodfill->GetIdentHash ().ToBase64 ());
auto msg = dest->CreateRequestMessage (nextFloodfill, inbound);
msg->onDrop = [this, dest]() { this->SendNextRequest (dest); };
outbound->SendTunnelDataMsgTo (nextFloodfill->GetIdentHash (), 0,
i2p::garlic::WrapECIESX25519MessageForRouter (msg, nextFloodfill->GetIdentity ()->GetEncryptionPublicKey ()));
}

11
libi2pd/TunnelGateway.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2021, The PurpleI2P Project
* Copyright (c) 2013-2024, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -35,6 +35,13 @@ namespace tunnel
if (!m_CurrentTunnelDataMsg)
{
CreateCurrentTunnelDataMessage ();
if (block.data && block.data->onDrop)
{
// onDrop is called for the first fragment in tunnel message
// that's usually true for short TBMs or lookups
m_CurrentTunnelDataMsg->onDrop = block.data->onDrop;
block.data->onDrop = nullptr;
}
messageCreated = true;
}
@ -155,7 +162,6 @@ namespace tunnel
void TunnelGatewayBuffer::CreateCurrentTunnelDataMessage ()
{
m_CurrentTunnelDataMsg = nullptr;
m_CurrentTunnelDataMsg = NewI2NPTunnelMessage (true); // tunnel endpoint is at least of two tunnel messages size
// we reserve space for padding
m_CurrentTunnelDataMsg->offset += TUNNEL_DATA_MSG_SIZE + I2NP_HEADER_SIZE;
@ -223,6 +229,7 @@ namespace tunnel
m_Tunnel->EncryptTunnelMsg (tunnelMsg, newMsg);
htobe32buf (newMsg->GetPayload (), m_Tunnel->GetNextTunnelID ());
newMsg->FillI2NPMessageHeader (eI2NPTunnelData);
if (tunnelMsg->onDrop) newMsg->onDrop = tunnelMsg->onDrop;
newTunnelMsgs.push_back (newMsg);
m_NumSentBytes += TUNNEL_DATA_MSG_SIZE;
}