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handle NTCP2 RouterInfo flag

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orignal 2018-11-21 11:23:48 -05:00
parent 0e9074aaba
commit 42ed312384
4 changed files with 19 additions and 5 deletions
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4
libi2pd/NTCP2.cpp
View file

@ -695,7 +695,7 @@ namespace transport
SendTerminationAndTerminate (eNTCP2IncorrectSParameter);
return;
}
i2p::data::netdb.PostI2NPMsg (CreateI2NPMessage (eI2NPDummyMsg, buf.data () + 4, size - 1)); // TODO: should insert ri and not parse it twice
i2p::data::netdb.PostI2NPMsg (CreateI2NPMessage (eI2NPDummyMsg, buf.data () + 3, size)); // TODO: should insert ri and not parse it twice
// TODO: process options
// ready to communicate
@ -860,7 +860,7 @@ namespace transport
case eNTCP2BlkRouterInfo:
{
LogPrint (eLogDebug, "NTCP2: RouterInfo flag=", (int)frame[offset]);
i2p::data::netdb.PostI2NPMsg (CreateI2NPMessage (eI2NPDummyMsg, frame + offset + 1, size - 1));
i2p::data::netdb.PostI2NPMsg (CreateI2NPMessage (eI2NPDummyMsg, frame + offset, size));
break;
}
case eNTCP2BlkI2NPMessage:

2
libi2pd/NTCP2.h
View file

@ -73,6 +73,8 @@ namespace transport
eNTCP2Banned, // 17
};
// RouterInfo flags
const uint8_t NTCP2_ROUTER_INFO_FLAG_REQUEST_FLOOD = 0x01;
typedef std::array<uint8_t, NTCP2_UNENCRYPTED_FRAME_MAX_SIZE> NTCP2FrameBuffer;
struct NTCP2Establisher

15
libi2pd/NetDb.cpp
View file

@ -12,6 +12,7 @@
#include "I2NPProtocol.h"
#include "Tunnel.h"
#include "Transports.h"
#include "NTCP2.h"
#include "RouterContext.h"
#include "Garlic.h"
#include "NetDb.hpp"
@ -99,8 +100,8 @@ namespace data
HandleDatabaseLookupMsg (msg);
break;
case eI2NPDummyMsg:
// plain RouterInfo from NTCP2 for now
AddRouterInfo (msg->GetPayload (), msg->GetPayloadLength ());
// plain RouterInfo from NTCP2 with flag for now
HandleNTCP2RouterInfoMsg (msg);
break;
default: // WTF?
LogPrint (eLogError, "NetDb: unexpected message type ", (int) msg->GetTypeID ());
@ -574,6 +575,16 @@ namespace data
transports.SendMessage (from, dest->CreateRequestMessage (nullptr, nullptr));
}
void NetDb::HandleNTCP2RouterInfoMsg (std::shared_ptr<const I2NPMessage> m)
{
uint8_t flood = m->GetPayload ()[0] & NTCP2_ROUTER_INFO_FLAG_REQUEST_FLOOD;
bool updated = AddRouterInfo (m->GetPayload () + 1, m->GetPayloadLength () - 1); // without flag
if (flood && updated && context.IsFloodfill ())
{
// TODO: flood
LogPrint (eLogInfo, "NetDb: NTCP RouterInfo flood is not implemented");
}
}
void NetDb::HandleDatabaseStoreMsg (std::shared_ptr<const I2NPMessage> m)
{

3
libi2pd/NetDb.hpp
View file

@ -65,7 +65,8 @@ namespace data
void HandleDatabaseStoreMsg (std::shared_ptr<const I2NPMessage> msg);
void HandleDatabaseSearchReplyMsg (std::shared_ptr<const I2NPMessage> msg);
void HandleDatabaseLookupMsg (std::shared_ptr<const I2NPMessage> msg);
void HandleNTCP2RouterInfoMsg (std::shared_ptr<const I2NPMessage> m);
std::shared_ptr<const RouterInfo> GetRandomRouter () const;
std::shared_ptr<const RouterInfo> GetRandomRouter (std::shared_ptr<const RouterInfo> compatibleWith) const;
std::shared_ptr<const RouterInfo> GetHighBandwidthRandomRouter (std::shared_ptr<const RouterInfo> compatibleWith) const;