pass actual LeaseSet instead of I2NP message

Garlic.cpp

@@ -15,8 +15,8 @@ namespace i2p
 namespace garlic
 {	
 	GarlicRoutingSession::GarlicRoutingSession (const i2p::data::RoutingDestination * destination, int numTags):
-		m_Destination (destination), m_FirstMsgID (0), m_IsAcknowledged (false), 
-		m_NumTags (numTags), m_NextTag (-1), m_SessionTags (0), m_TagsCreationTime (0)
+		m_Destination (destination), m_FirstMsgID (0), m_IsAcknowledged (false), m_NumTags (numTags), 
+		m_NextTag (-1), m_SessionTags (0), m_TagsCreationTime (0), m_LocalLeaseSet (nullptr)	
 	{
 		// create new session tags and session key
 		m_Rnd.GenerateBlock (m_SessionKey, 32);
@@ -31,7 +31,8 @@ namespace garlic
 	}	
 
 	GarlicRoutingSession::GarlicRoutingSession (const uint8_t * sessionKey, const SessionTag& sessionTag):
-		m_Destination (nullptr), m_FirstMsgID (0), m_IsAcknowledged (true), m_NumTags (1), m_NextTag (0)
+		m_Destination (nullptr), m_FirstMsgID (0), m_IsAcknowledged (true), m_NumTags (1), m_NextTag (0),
+		m_LocalLeaseSet (nullptr)	
 	{
 		memcpy (m_SessionKey, sessionKey, 32);
 		m_Encryption.SetKey (m_SessionKey);
@@ -56,8 +57,9 @@ namespace garlic
 		}
 	}
 	
-	I2NPMessage * GarlicRoutingSession::WrapSingleMessage (I2NPMessage * msg, I2NPMessage * leaseSet)
+	I2NPMessage * GarlicRoutingSession::WrapSingleMessage (I2NPMessage * msg, const i2p::data::LeaseSet * leaseSet)
 	{
+		if (leaseSet) m_LocalLeaseSet = leaseSet;
 		I2NPMessage * m = NewI2NPMessage ();
 		size_t len = 0;
 		uint8_t * buf = m->GetPayload () + 4; // 4 bytes for length
@@ -122,12 +124,10 @@ namespace garlic
 		FillI2NPMessageHeader (m, eI2NPGarlic);
 		if (msg)
 			DeleteI2NPMessage (msg);
-		if (leaseSet)
-			DeleteI2NPMessage (leaseSet);
 		return m;
 	}	
 
-	size_t GarlicRoutingSession::CreateAESBlock (uint8_t * buf, const I2NPMessage * msg, const I2NPMessage * leaseSet)
+	size_t GarlicRoutingSession::CreateAESBlock (uint8_t * buf, const I2NPMessage * msg, bool attachLeaseSet)
 	{
 		size_t blockSize = 0;
 		*(uint16_t *)buf = m_NextTag < 0 ? htobe16 (m_NumTags) : 0; // tag count
@@ -146,7 +146,7 @@ namespace garlic
 		blockSize += 32;
 		buf[blockSize] = 0; // flag
 		blockSize++;
-		size_t len = CreateGarlicPayload (buf + blockSize, msg, leaseSet);
+		size_t len = CreateGarlicPayload (buf + blockSize, msg, attachLeaseSet);
 		*payloadSize = htobe32 (len);
 		CryptoPP::SHA256().CalculateDigest(payloadHash, buf + blockSize, len);
 		blockSize += len;
@@ -157,7 +157,7 @@ namespace garlic
 		return blockSize;
 	}	
 
-	size_t GarlicRoutingSession::CreateGarlicPayload (uint8_t * payload, const I2NPMessage * msg, const I2NPMessage * leaseSet)
+	size_t GarlicRoutingSession::CreateGarlicPayload (uint8_t * payload, const I2NPMessage * msg, bool attachLeaseSet)
 	{
 		uint64_t ts = i2p::util::GetMillisecondsSinceEpoch () + 5000; // 5 sec
 		uint32_t msgID = m_Rnd.GenerateWord32 ();	
@@ -166,18 +166,28 @@ namespace garlic
 		*numCloves = 0;
 		size++;
 
-		if (m_NextTag < 0) // new session
-		{
-			// clove is DeliveryStatus 
-			size += CreateDeliveryStatusClove (payload + size, msgID);
-			(*numCloves)++;
-			m_FirstMsgID = msgID;
-		}	
-		if (leaseSet) 
-		{
-			// clove is our leaseSet if presented
-			size += CreateGarlicClove (payload + size, leaseSet, false);
-			(*numCloves)++;
+		if (m_LocalLeaseSet)
+		{	
+			if (m_NextTag < 0) // new session
+			{
+				// clove is DeliveryStatus 
+				size += CreateDeliveryStatusClove (payload + size, msgID);
+				if (size > 0) // successive?
+				{
+					(*numCloves)++;
+					m_FirstMsgID = msgID;
+				}
+				else
+					LogPrint ("DeliveryStatus clove was not created");
+			}	
+			if (attachLeaseSet) 
+			{
+				// clove if our leaseSet must be attached
+				auto leaseSet = CreateDatabaseStoreMsg (m_LocalLeaseSet);
+				size += CreateGarlicClove (payload + size, leaseSet, false);
+				DeleteI2NPMessage (leaseSet);
+				(*numCloves)++;
+			}
 		}	
 		if (msg) // clove message ifself if presented
 		{	
@@ -225,37 +235,39 @@ namespace garlic
 	size_t GarlicRoutingSession::CreateDeliveryStatusClove (uint8_t * buf, uint32_t msgID)
 	{		
 		size_t size = 0;
-		auto tunnel = i2p::tunnel::tunnels.GetNextInboundTunnel ();
-		if (tunnel)
-		{	
-			buf[size] = eGarlicDeliveryTypeTunnel << 5; // delivery instructions flag tunnel
-			size++;
-			// hash and tunnelID sequence is reversed for Garlic
-			memcpy (buf + size, tunnel->GetNextIdentHash (), 32); // To Hash
-			size += 32;
-			*(uint32_t *)(buf + size) = htobe32 (tunnel->GetNextTunnelID ()); // tunnelID
-			size += 4; 	
-		}
-		else	
-		{	
-			LogPrint ("No reply tunnels for garlic DeliveryStatus found");
-			buf[size] = 0;//  delivery instructions flag local
-			size++;
+		if (m_LocalLeaseSet)
+		{
+			auto leases = m_LocalLeaseSet->GetNonExpiredLeases ();
+			if (!leases.empty ())
+			{	
+				buf[size] = eGarlicDeliveryTypeTunnel << 5; // delivery instructions flag tunnel
+				size++;
+				uint32_t i = m_Rnd.GenerateWord32 (0, leases.size () - 1);
+				// hash and tunnelID sequence is reversed for Garlic 
+				memcpy (buf + size, leases[i].tunnelGateway, 32); // To Hash
+				size += 32;
+				*(uint32_t *)(buf + size) = htobe32 (leases[i].tunnelID); // tunnelID
+				size += 4; 	
+				// create msg 
+				I2NPMessage * msg = CreateDeliveryStatusMsg (msgID);
+				memcpy (buf + size, msg->GetBuffer (), msg->GetLength ());
+				size += msg->GetLength ();
+				DeleteI2NPMessage (msg);
+				// fill clove
+				uint64_t ts = i2p::util::GetMillisecondsSinceEpoch () + 5000; // 5 sec
+				*(uint32_t *)(buf + size) = htobe32 (m_Rnd.GenerateWord32 ()); // CloveID
+				size += 4;
+				*(uint64_t *)(buf + size) = htobe64 (ts); // Expiration of clove
+				size += 8;
+				memset (buf + size, 0, 3); // certificate of clove
+				size += 3;
+			}
+			else	
+				LogPrint ("All tunnels of local LeaseSet expired");	
 		}
-			
-		
-		I2NPMessage * msg = CreateDeliveryStatusMsg (msgID);
-		memcpy (buf + size, msg->GetBuffer (), msg->GetLength ());
-		size += msg->GetLength ();
-		DeleteI2NPMessage (msg);
-		uint64_t ts = i2p::util::GetMillisecondsSinceEpoch () + 5000; // 5 sec
-		*(uint32_t *)(buf + size) = htobe32 (m_Rnd.GenerateWord32 ()); // CloveID
-		size += 4;
-		*(uint64_t *)(buf + size) = htobe64 (ts); // Expiration of clove
-		size += 8;
-		memset (buf + size, 0, 3); // certificate of clove
-		size += 3;
-		
+		else
+			LogPrint ("Missing local LeaseSet");
+
 		return size;
 	}
 		
@@ -296,7 +308,7 @@ namespace garlic
 	}	
 
 	I2NPMessage * GarlicRouting::WrapMessage (const i2p::data::RoutingDestination& destination, 
-		I2NPMessage * msg, I2NPMessage * leaseSet)
+		I2NPMessage * msg, const i2p::data::LeaseSet * leaseSet)
 	{
 		auto it = m_Sessions.find (destination.GetIdentHash ());
 		GarlicRoutingSession * session = nullptr;

Garlic.h

@@ -45,7 +45,7 @@ namespace garlic
 			GarlicRoutingSession (const i2p::data::RoutingDestination * destination, int numTags);
 			GarlicRoutingSession (const uint8_t * sessionKey, const SessionTag& sessionTag); // one time encryption
 			~GarlicRoutingSession ();
-			I2NPMessage * WrapSingleMessage (I2NPMessage * msg, I2NPMessage * leaseSet);
+			I2NPMessage * WrapSingleMessage (I2NPMessage * msg, const i2p::data::LeaseSet * leaseSet);
 			int GetNextTag () const { return m_NextTag; };
 			uint32_t GetFirstMsgID () const { return m_FirstMsgID; };
 
@@ -54,8 +54,8 @@ namespace garlic
 			
 		private:
 
-			size_t CreateAESBlock (uint8_t * buf, const I2NPMessage * msg, const I2NPMessage * leaseSet);
-			size_t CreateGarlicPayload (uint8_t * payload, const I2NPMessage * msg, const I2NPMessage * leaseSet);
+			size_t CreateAESBlock (uint8_t * buf, const I2NPMessage * msg, bool attachLeaseSet);
+			size_t CreateGarlicPayload (uint8_t * payload, const I2NPMessage * msg, bool attachLeaseSet);
 			size_t CreateGarlicClove (uint8_t * buf, const I2NPMessage * msg, bool isDestination);
 			size_t CreateDeliveryStatusClove (uint8_t * buf, uint32_t msgID);
 			
@@ -70,7 +70,8 @@ namespace garlic
 			int m_NumTags, m_NextTag;
 			SessionTag * m_SessionTags; // m_NumTags*32 bytes
 			uint32_t m_TagsCreationTime; // seconds since epoch
-			
+			const i2p::data::LeaseSet * m_LocalLeaseSet;			
+
 			i2p::crypto::CBCEncryption m_Encryption;
 			CryptoPP::AutoSeededRandomPool m_Rnd;
 	};	
@@ -106,7 +107,7 @@ namespace garlic
 			
 			I2NPMessage * WrapSingleMessage (const i2p::data::RoutingDestination& destination, I2NPMessage * msg);
 			I2NPMessage * WrapMessage (const i2p::data::RoutingDestination& destination, 
-			    I2NPMessage * msg, I2NPMessage * leaseSet = nullptr);
+			    I2NPMessage * msg, const i2p::data::LeaseSet * leaseSet = nullptr);
 
 		private:
 

Streaming.cpp

@@ -394,10 +394,10 @@ namespace stream
 			}
 		}
 
-		I2NPMessage * leaseSet = nullptr;
+		const i2p::data::LeaseSet * leaseSet = nullptr;
 		if (m_LeaseSetUpdated)
 		{	
-			leaseSet = m_LocalDestination->GetLeaseSetMsg ();
+			leaseSet = m_LocalDestination->GetLeaseSet ();
 			m_LeaseSetUpdated = false;
 		}	
 
@@ -571,11 +571,6 @@ namespace stream
 			delete stream;
 		}	
 	}	
-		
-	I2NPMessage * StreamingDestination::GetLeaseSetMsg ()
-	{		
-		return CreateDatabaseStoreMsg (GetLeaseSet ());
-	}	
 
 	const i2p::data::LeaseSet * StreamingDestination::GetLeaseSet ()
 	{

Streaming.h

@@ -143,7 +143,6 @@ namespace stream
 			~StreamingDestination ();	
 
 			const i2p::data::PrivateKeys& GetKeys () const { return m_Keys; };
-			I2NPMessage * GetLeaseSetMsg ();
 			const i2p::data::LeaseSet * GetLeaseSet ();
 			i2p::tunnel::TunnelPool * GetTunnelPool () const  { return m_Pool; };