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include DeliveryStatus to Garlic

Browse Source
pull/7/head
orignal 11 years ago
parent 3aab091e9f
commit 57c97208f9
7 changed files with 93 additions and 14 deletions
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54
Garlic.cpp
Unescape Escape View File

@ -4,6 +4,8 @@
#include <string>
#include "ElGamal.h"
#include "RouterContext.h"
#include "I2NPProtocol.h"
#include "Tunnel.h"
#include "Timestamp.h"
#include "Streaming.h"
#include "Garlic.h"
@ -65,8 +67,6 @@ namespace garlic
FillI2NPMessageHeader (m, eI2NPGarlic);
if (msg)
DeleteI2NPMessage (msg);
if (leaseSet)
DeleteI2NPMessage (leaseSet);
return m;
}
@ -97,17 +97,23 @@ namespace garlic
size_t GarlicRoutingSession::CreateGarlicPayload (uint8_t * payload, I2NPMessage * msg, I2NPMessage * leaseSet)
{
uint64_t ts = i2p::util::GetMillisecondsSinceEpoch () + 5000; // 5 sec
uint32_t msgID = m_Rnd.GenerateWord32 ();
size_t size = 0;
uint8_t * numCloves = payload + size;
*numCloves = 0;
size++;
if (leaseSet)
{
// clove is DeliveryStatus is LeaseSet is presented
size += CreateDeliveryStatusClove (payload + size, msgID);
(*numCloves)++;
if (leaseSet) // first clove is our leaseSet if presented
{
// clove is our leaseSet if presented
size += CreateGarlicClove (payload + size, leaseSet, false);
(*numCloves)++;
}
if (msg) // next clove message ifself if presented
if (msg) // clove message ifself if presented
{
size += CreateGarlicClove (payload + size, msg, m_Destination->IsDestination ());
(*numCloves)++;
@ -115,7 +121,7 @@ namespace garlic
memset (payload + size, 0, 3); // certificate of message
size += 3;
*(uint32_t *)(payload + size) = htobe32 (m_Rnd.GenerateWord32 ()); // MessageID
*(uint32_t *)(payload + size) = htobe32 (msgID); // MessageID
size += 4;
*(uint64_t *)(payload + size) = htobe64 (ts); // Expiration of message
size += 8;
@ -149,6 +155,42 @@ namespace garlic
size += 3;
return size;
}
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++;
*(uint32_t *)(buf + size) = htobe32 (tunnel->GetNextTunnelID ()); // tunnelID
size += 4;
memcpy (buf + size, tunnel->GetNextIdentHash (), 32); // To Hash
size += 32;
}
else
{
LogPrint ("No reply tunnels for garlic DeliveryStatus found");
buf[size] = 0;// delivery instructions flag local
size++;
}
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;
return size;
}
GarlicRouting routing;
GarlicRouting::GarlicRouting ()

1
Garlic.h
Unescape Escape View File

@ -48,6 +48,7 @@ namespace garlic
size_t CreateAESBlock (uint8_t * buf, I2NPMessage * msg, I2NPMessage * leaseSet);
size_t CreateGarlicPayload (uint8_t * payload, I2NPMessage * msg, I2NPMessage * leaseSet);
size_t CreateGarlicClove (uint8_t * buf, I2NPMessage * msg, bool isDestination);
size_t CreateDeliveryStatusClove (uint8_t * buf, uint32_t msgID);
private:

4
I2NPProtocol.cpp
Unescape Escape View File

@ -67,7 +67,7 @@ namespace i2p
return msg;
}
I2NPMessage * CreateDeliveryStatusMsg ()
I2NPMessage * CreateDeliveryStatusMsg (uint32_t msgID)
{
#pragma pack(1)
struct
@ -77,7 +77,7 @@ namespace i2p
} msg;
#pragma pack ()
msg.msgID = 0;
msg.msgID = htobe32 (msgID);
msg.timestamp = htobe64 (i2p::util::GetMillisecondsSinceEpoch ());
return CreateI2NPMessage (eI2NPDeliveryStatus, (uint8_t *)&msg, sizeof (msg));
}

2
I2NPProtocol.h
Unescape Escape View File

@ -103,7 +103,7 @@ namespace i2p
I2NPMessage * CreateI2NPMessage (I2NPMessageType msgType, const uint8_t * buf, int len, uint32_t replyMsgID = 0);
I2NPMessage * CreateI2NPMessage (const uint8_t * buf, int len);
I2NPMessage * CreateDeliveryStatusMsg ();
I2NPMessage * CreateDeliveryStatusMsg (uint32_t msgID);
I2NPMessage * CreateDatabaseLookupMsg (const uint8_t * key, const uint8_t * from,
uint32_t replyTunnelID, bool exploratory = false,
std::set<i2p::data::IdentHash> * excludedPeers = nullptr);

16
LeaseSet.cpp
Unescape Escape View File

@ -1,3 +1,5 @@
#include <cryptopp/dsa.h>
#include "CryptoConst.h"
#include "Log.h"
#include "LeaseSet.h"
@ -24,10 +26,22 @@ namespace data
memcpy (m_EncryptionKey, header->encryptionKey, 256);
LogPrint ("LeaseSet num=", (int)header->num);
const uint8_t * leases = buf + sizeof (H);
for (int i = 0; i < header->num; i++)
{
m_Leases.push_back (*(Lease *)(buf + sizeof (H)));
Lease lease = *(Lease *)leases;
lease.tunnelID = be32toh (lease.tunnelID);
m_Leases.push_back (lease);
leases += sizeof (Lease);
}
// verify
CryptoPP::DSA::PublicKey pubKey;
pubKey.Initialize (i2p::crypto::dsap, i2p::crypto::dsaq, i2p::crypto::dsag,
CryptoPP::Integer (m_Identity.signingKey, 128));
CryptoPP::DSA::Verifier verifier (pubKey);
if (!verifier.VerifyMessage (buf, leases - buf, leases, 40))
LogPrint ("LeaseSet verification failed");
}
}
}

19
Streaming.cpp
Unescape Escape View File

@ -91,7 +91,7 @@ namespace stream
size += len; // payload
m_LocalDestination->Sign (packet, size, signature);
I2NPMessage * msg = i2p::garlic::routing.WrapSingleMessage (m_RemoteLeaseSet,
CreateDataMessage (this, packet, size), m_LocalDestination->CreateLeaseSet ());
CreateDataMessage (this, packet, size), m_LocalDestination->GetLeaseSet ());
auto outbound = i2p::tunnel::tunnels.GetNextOutboundTunnel ();
if (outbound)
@ -106,7 +106,7 @@ namespace stream
StreamingDestination * sharedLocalDestination = nullptr;
StreamingDestination::StreamingDestination ()
StreamingDestination::StreamingDestination (): m_LeaseSet (nullptr)
{
// TODO: read from file later
m_Keys = i2p::data::CreateRandomKeys ();
@ -115,6 +115,12 @@ namespace stream
m_SigningPrivateKey.Initialize (i2p::crypto::dsap, i2p::crypto::dsaq, i2p::crypto::dsag,
CryptoPP::Integer (m_Keys.signingPrivateKey, 20));
}
StreamingDestination::~StreamingDestination ()
{
if (m_LeaseSet)
DeleteI2NPMessage (m_LeaseSet);
}
void StreamingDestination::HandleNextPacket (const uint8_t * buf, size_t len)
{
@ -141,6 +147,15 @@ namespace stream
delete stream;
}
}
I2NPMessage * StreamingDestination::GetLeaseSet ()
{
if (!m_LeaseSet)
m_LeaseSet = CreateLeaseSet ();
else
FillI2NPMessageHeader (m_LeaseSet, eI2NPDatabaseStore); // refresh msgID
return m_LeaseSet;
}
I2NPMessage * StreamingDestination::CreateLeaseSet () const
{

11
Streaming.h
Unescape Escape View File

@ -52,15 +52,20 @@ namespace stream
public:
StreamingDestination ();
~StreamingDestination ();
const i2p::data::Keys& GetKeys () const { return m_Keys; };
const i2p::data::Identity& GetIdentity () const { return m_Identity; };
I2NPMessage * CreateLeaseSet () const;
I2NPMessage * GetLeaseSet ();
void Sign (uint8_t * buf, int len, uint8_t * signature) const;
Stream * CreateNewStream (const i2p::data::LeaseSet * remote);
void DeleteStream (Stream * stream);
void HandleNextPacket (const uint8_t * buf, size_t len);
private:
I2NPMessage * CreateLeaseSet () const;
private:
@ -69,6 +74,8 @@ namespace stream
i2p::data::Identity m_Identity;
i2p::data::IdentHash m_IdentHash;
I2NPMessage * m_LeaseSet;
CryptoPP::DSA::PrivateKey m_SigningPrivateKey;
};

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