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send DeliveryStatusMsg for LeaseSet

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orignal 2020-03-08 18:13:41 -04:00
parent 64da62dbe6
commit 4adc741de3
4 changed files with 96 additions and 29 deletions
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53
libi2pd/ECIESX25519AEADRatchetSession.cpp
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@ -6,6 +6,8 @@
#include "Tag.h"
#include "I2PEndian.h"
#include "Timestamp.h"
#include "Tunnel.h"
#include "TunnelPool.h"
#include "ECIESX25519AEADRatchetSession.h"
namespace i2p
@ -460,12 +462,22 @@ namespace garlic
std::vector<uint8_t> ECIESX25519AEADRatchetSession::CreatePayload (std::shared_ptr<const I2NPMessage> msg)
{
uint64_t ts = i2p::util::GetMillisecondsSinceEpoch ();
size_t payloadLen = 7; // datatime
if (msg && m_Destination)
payloadLen += msg->GetPayloadLength () + 13 + 32;
auto leaseSet = CreateDatabaseStoreMsg (GetOwner ()->GetLeaseSet ());
if (leaseSet)
auto leaseSet = (GetLeaseSetUpdateStatus () == eLeaseSetUpdated) ? CreateDatabaseStoreMsg (GetOwner ()->GetLeaseSet ()) : nullptr;
std::shared_ptr<I2NPMessage> deliveryStatus;
if (leaseSet)
{
payloadLen += leaseSet->GetPayloadLength () + 13;
deliveryStatus = CreateEncryptedDeliveryStatusMsg (leaseSet->GetMsgID ());
payloadLen += deliveryStatus->GetPayloadLength () + 49;
if (GetLeaseSetUpdateMsgID ()) GetOwner ()->RemoveDeliveryStatusSession (GetLeaseSetUpdateMsgID ()); // remove previous
SetLeaseSetUpdateStatus (eLeaseSetSubmitted);
SetLeaseSetUpdateMsgID (leaseSet->GetMsgID ());
SetLeaseSetSubmissionTime (ts);
}
uint8_t paddingSize;
RAND_bytes (&paddingSize, 1);
paddingSize &= 0x0F; paddingSize++; // 1 - 16
@ -475,10 +487,13 @@ namespace garlic
// DateTime
v[offset] = eECIESx25519BlkDateTime; offset++;
htobe16buf (v.data () + offset, 4); offset += 2;
htobe32buf (v.data () + offset, i2p::util::GetSecondsSinceEpoch ()); offset += 4;
htobe32buf (v.data () + offset, ts/1000); offset += 4; // in seconds
// LeaseSet
if (leaseSet)
offset += CreateGarlicClove (leaseSet, v.data () + offset, payloadLen - offset);
// DeliveryStatus
if (deliveryStatus)
offset += CreateDeliveryStatusClove (deliveryStatus, v.data () + offset, payloadLen - offset);
// msg
if (msg && m_Destination)
offset += CreateGarlicClove (msg, v.data () + offset, payloadLen - offset, true);
@ -513,6 +528,38 @@ namespace garlic
return cloveSize + 3;
}
size_t ECIESX25519AEADRatchetSession::CreateDeliveryStatusClove (std::shared_ptr<const I2NPMessage> msg, uint8_t * buf, size_t len)
{
uint16_t cloveSize = msg->GetPayloadLength () + 9 + 37 /* delivery instruction */;
if ((int)len < cloveSize + 3) return 0;
buf[0] = eECIESx25519BlkGalicClove; // clove type
htobe16buf (buf + 1, cloveSize); // size
buf += 3;
if (GetOwner ())
{
auto inboundTunnel = GetOwner ()->GetTunnelPool ()->GetNextInboundTunnel ();
if (inboundTunnel)
{
// delivery instructions
*buf = eGarlicDeliveryTypeTunnel << 5; buf++; // delivery instructions flag tunnel
// hash and tunnelID sequence is reversed for Garlic
memcpy (buf, inboundTunnel->GetNextIdentHash (), 32); buf += 32;// To Hash
htobe32buf (buf, inboundTunnel->GetNextTunnelID ()); buf += 4;// tunnelID
}
else
{
LogPrint (eLogError, "Garlic: No inbound tunnels in the pool for DeliveryStatus");
return 0;
}
htobe32buf (buf + 1, msg->GetMsgID ()); // msgID
htobe32buf (buf + 5, msg->GetExpiration ()/1000); // expiration in seconds
memcpy (buf + 9, msg->GetPayload (), msg->GetPayloadLength ());
}
else
return 0;
return cloveSize + 3;
}
void ECIESX25519AEADRatchetSession::GenerateMoreReceiveTags (int numTags)
{
for (int i = 0; i < numTags; i++)