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net: handle version push in InitializeNode

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Cory Fields 2016-10-26 18:08:11 -04:00 committed by Pieter Wuille
parent 7588b85cd2
commit 902768099c
4 changed files with 44 additions and 41 deletions
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30
src/main.cpp
View file

@ -18,6 +18,7 @@
#include "init.h"
#include "merkleblock.h"
#include "net.h"
#include "netbase.h"
#include "policy/fees.h"
#include "policy/policy.h"
#include "pow.h"
@ -354,12 +355,37 @@ void UpdatePreferredDownload(CNode* node, CNodeState* state)
nPreferredDownload += state->fPreferredDownload;
}
void InitializeNode(NodeId nodeid, const CNode *pnode) {
void PushNodeVersion(CNode *pnode, CConnman& connman, int64_t nTime)
{
ServiceFlags nLocalNodeServices = pnode->GetLocalServices();
uint64_t nonce = pnode->GetLocalNonce();
int nNodeStartingHeight = pnode->GetMyStartingHeight();
NodeId nodeid = pnode->GetId();
CAddress addr = pnode->addr;
CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService(), addr.nServices));
CAddress addrMe = CAddress(CService(), nLocalNodeServices);
connman.PushMessageWithVersion(pnode, INIT_PROTO_VERSION, NetMsgType::VERSION, PROTOCOL_VERSION, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe,
nonce, strSubVersion, nNodeStartingHeight, ::fRelayTxes);
if (fLogIPs)
LogPrint("net", "send version message: version %d, blocks=%d, us=%s, them=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), nodeid);
else
LogPrint("net", "send version message: version %d, blocks=%d, us=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), nodeid);
}
void InitializeNode(CNode *pnode, CConnman& connman) {
CAddress addr = pnode->addr;
std::string addrName = pnode->addrName;
NodeId nodeid = pnode->GetId();
{
LOCK(cs_main);
mapNodeState.emplace_hint(mapNodeState.end(), std::piecewise_construct, std::forward_as_tuple(nodeid), std::forward_as_tuple(addr, std::move(addrName)));
}
if(!pnode->fInbound)
PushNodeVersion(pnode, connman, GetTime());
}
void FinalizeNode(NodeId nodeid, bool& fUpdateConnectionTime) {
fUpdateConnectionTime = false;
@ -5118,7 +5144,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
// Be shy and don't send version until we hear
if (pfrom->fInbound)
connman.PushVersion(pfrom, GetAdjustedTime());
PushNodeVersion(pfrom, connman, GetAdjustedTime());
pfrom->fClient = !(pfrom->nServices & NODE_NETWORK);

34
src/net.cpp
View file

@ -393,21 +393,15 @@ CNode* CConnman::ConnectNode(CAddress addrConnect, const char *pszDest, bool fCo
NodeId id = GetNewNodeId();
uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize();
CNode* pnode = new CNode(id, nLocalServices, GetBestHeight(), hSocket, addrConnect, CalculateKeyedNetGroup(addrConnect), nonce, pszDest ? pszDest : "", false);
PushVersion(pnode, GetTime());
GetNodeSignals().InitializeNode(pnode->GetId(), pnode);
pnode->nServicesExpected = ServiceFlags(addrConnect.nServices & nRelevantServices);
pnode->nTimeConnected = GetTime();
pnode->AddRef();
GetNodeSignals().InitializeNode(pnode, *this);
{
LOCK(cs_vNodes);
vNodes.push_back(pnode);
}
pnode->nServicesExpected = ServiceFlags(addrConnect.nServices & nRelevantServices);
pnode->nTimeConnected = GetTime();
return pnode;
} else if (!proxyConnectionFailed) {
// If connecting to the node failed, and failure is not caused by a problem connecting to
@ -418,24 +412,6 @@ CNode* CConnman::ConnectNode(CAddress addrConnect, const char *pszDest, bool fCo
return NULL;
}
void CConnman::PushVersion(CNode* pnode, int64_t nTime)
{
ServiceFlags nLocalNodeServices = pnode->GetLocalServices();
CAddress addrYou = (pnode->addr.IsRoutable() && !IsProxy(pnode->addr) ? pnode->addr : CAddress(CService(), pnode->addr.nServices));
CAddress addrMe = CAddress(CService(), nLocalNodeServices);
uint64_t nonce = pnode->GetLocalNonce();
int nNodeStartingHeight = pnode->nMyStartingHeight;
NodeId id = pnode->GetId();
PushMessageWithVersion(pnode, INIT_PROTO_VERSION, NetMsgType::VERSION, PROTOCOL_VERSION, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe,
nonce, strSubVersion, nNodeStartingHeight, ::fRelayTxes);
if (fLogIPs)
LogPrint("net", "send version message: version %d, blocks=%d, us=%s, them=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), id);
else
LogPrint("net", "send version message: version %d, blocks=%d, us=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), id);
}
void CConnman::DumpBanlist()
{
SweepBanned(); // clean unused entries (if bantime has expired)
@ -1036,9 +1012,9 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) {
uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize();
CNode* pnode = new CNode(id, nLocalServices, GetBestHeight(), hSocket, addr, CalculateKeyedNetGroup(addr), nonce, "", true);
GetNodeSignals().InitializeNode(pnode->GetId(), pnode);
pnode->AddRef();
pnode->fWhitelisted = whitelisted;
GetNodeSignals().InitializeNode(pnode, *this);
LogPrint("net", "connection from %s accepted\n", addr.ToString());
@ -2130,7 +2106,7 @@ bool CConnman::Start(boost::thread_group& threadGroup, CScheduler& scheduler, st
uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize();
pnodeLocalHost = new CNode(id, nLocalServices, GetBestHeight(), INVALID_SOCKET, CAddress(CService(local, 0), nLocalServices), 0, nonce);
GetNodeSignals().InitializeNode(pnodeLocalHost->GetId(), pnodeLocalHost);
GetNodeSignals().InitializeNode(pnodeLocalHost, *this);
}
//

9
src/net.h
View file

@ -163,9 +163,6 @@ public:
PushMessageWithVersionAndFlag(pnode, 0, 0, sCommand, std::forward<Args>(args)...);
}
void PushVersion(CNode* pnode, int64_t nTime);
template<typename Callable>
bool ForEachNodeContinueIf(Callable&& func)
{
@ -462,7 +459,7 @@ struct CNodeSignals
{
boost::signals2::signal<bool (CNode*, CConnman&), CombinerAll> ProcessMessages;
boost::signals2::signal<bool (CNode*, CConnman&), CombinerAll> SendMessages;
boost::signals2::signal<void (NodeId, const CNode*)> InitializeNode;
boost::signals2::signal<void (CNode*, CConnman&)> InitializeNode;
boost::signals2::signal<void (NodeId, bool&)> FinalizeNode;
};
@ -722,6 +719,10 @@ public:
return nLocalHostNonce;
}
int GetMyStartingHeight() const {
return nMyStartingHeight;
}
int GetRefCount()
{
assert(nRefCount >= 0);

8
src/test/DoS_tests.cpp
View file

@ -50,7 +50,7 @@ BOOST_AUTO_TEST_CASE(DoS_banning)
CAddress addr1(ip(0xa0b0c001), NODE_NONE);
CNode dummyNode1(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr1, 0, 0, "", true);
dummyNode1.SetSendVersion(PROTOCOL_VERSION);
GetNodeSignals().InitializeNode(dummyNode1.GetId(), &dummyNode1);
GetNodeSignals().InitializeNode(&dummyNode1, *connman);
dummyNode1.nVersion = 1;
Misbehaving(dummyNode1.GetId(), 100); // Should get banned
SendMessages(&dummyNode1, *connman);
@ -60,7 +60,7 @@ BOOST_AUTO_TEST_CASE(DoS_banning)
CAddress addr2(ip(0xa0b0c002), NODE_NONE);
CNode dummyNode2(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr2, 1, 1, "", true);
dummyNode2.SetSendVersion(PROTOCOL_VERSION);
GetNodeSignals().InitializeNode(dummyNode2.GetId(), &dummyNode2);
GetNodeSignals().InitializeNode(&dummyNode2, *connman);
dummyNode2.nVersion = 1;
Misbehaving(dummyNode2.GetId(), 50);
SendMessages(&dummyNode2, *connman);
@ -78,7 +78,7 @@ BOOST_AUTO_TEST_CASE(DoS_banscore)
CAddress addr1(ip(0xa0b0c001), NODE_NONE);
CNode dummyNode1(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr1, 3, 1, "", true);
dummyNode1.SetSendVersion(PROTOCOL_VERSION);
GetNodeSignals().InitializeNode(dummyNode1.GetId(), &dummyNode1);
GetNodeSignals().InitializeNode(&dummyNode1, *connman);
dummyNode1.nVersion = 1;
Misbehaving(dummyNode1.GetId(), 100);
SendMessages(&dummyNode1, *connman);
@ -101,7 +101,7 @@ BOOST_AUTO_TEST_CASE(DoS_bantime)
CAddress addr(ip(0xa0b0c001), NODE_NONE);
CNode dummyNode(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr, 4, 4, "", true);
dummyNode.SetSendVersion(PROTOCOL_VERSION);
GetNodeSignals().InitializeNode(dummyNode.GetId(), &dummyNode);
GetNodeSignals().InitializeNode(&dummyNode, *connman);
dummyNode.nVersion = 1;
Misbehaving(dummyNode.GetId(), 100);