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Move static global randomizer seeds into CConnman

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This commit is contained in:
Pieter Wuille
2016-09-09 12:48:10 +02:00
parent 254ea97e94
commit d9ff591d42
7 changed files with 34 additions and 24 deletions
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23
src/net.cpp
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@@ -63,6 +63,7 @@
const static std::string NET_MESSAGE_COMMAND_OTHER = "*other*";
static const uint64_t RANDOMIZER_ID_NETGROUP = 0x6c0edd8036ef4036ULL; // SHA256("netgroup")[0:8]
//
// Global state variables
//
@@ -387,7 +388,7 @@ CNode* CConnman::ConnectNode(CAddress addrConnect, const char *pszDest, bool fCo
addrman.Attempt(addrConnect, fCountFailure);
// Add node
CNode* pnode = new CNode(GetNewNodeId(), nLocalServices, GetBestHeight(), hSocket, addrConnect, pszDest ? pszDest : "", false);
CNode* pnode = new CNode(GetNewNodeId(), nLocalServices, GetBestHeight(), hSocket, addrConnect, CalculateKeyedNetGroup(addrConnect), pszDest ? pszDest : "", false);
GetNodeSignals().InitializeNode(pnode->GetId(), pnode);
pnode->AddRef();
@@ -1022,7 +1023,7 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) {
}
}
CNode* pnode = new CNode(GetNewNodeId(), nLocalServices, GetBestHeight(), hSocket, addr, "", true);
CNode* pnode = new CNode(GetNewNodeId(), nLocalServices, GetBestHeight(), hSocket, addr, CalculateKeyedNetGroup(addr), "", true);
GetNodeSignals().InitializeNode(pnode->GetId(), pnode);
pnode->AddRef();
pnode->fWhitelisted = whitelisted;
@@ -2023,7 +2024,7 @@ void Discover(boost::thread_group& threadGroup)
#endif
}
CConnman::CConnman()
CConnman::CConnman(uint64_t nSeed0In, uint64_t nSeed1In) : nSeed0(nSeed0In), nSeed1(nSeed1In)
{
setBannedIsDirty = false;
fAddressesInitialized = false;
@@ -2108,7 +2109,7 @@ bool CConnman::Start(boost::thread_group& threadGroup, CScheduler& scheduler, st
if (pnodeLocalHost == NULL) {
CNetAddr local;
LookupHost("127.0.0.1", local, false);
pnodeLocalHost = new CNode(GetNewNodeId(), nLocalServices, GetBestHeight(), INVALID_SOCKET, CAddress(CService(local, 0), nLocalServices));
pnodeLocalHost = new CNode(GetNewNodeId(), nLocalServices, GetBestHeight(), INVALID_SOCKET, CAddress(CService(local, 0), nLocalServices), 0);
GetNodeSignals().InitializeNode(pnodeLocalHost->GetId(), pnodeLocalHost);
}
@@ -2498,10 +2499,10 @@ void CNode::Fuzz(int nChance)
unsigned int CConnman::GetReceiveFloodSize() const { return nReceiveFloodSize; }
unsigned int CConnman::GetSendBufferSize() const{ return nSendBufferMaxSize; }
CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn, SOCKET hSocketIn, const CAddress& addrIn, const std::string& addrNameIn, bool fInboundIn) :
CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn, SOCKET hSocketIn, const CAddress& addrIn, uint64_t nKeyedNetGroupIn, const std::string& addrNameIn, bool fInboundIn) :
ssSend(SER_NETWORK, INIT_PROTO_VERSION),
addr(addrIn),
nKeyedNetGroup(CalculateKeyedNetGroup(addrIn)),
nKeyedNetGroup(nKeyedNetGroupIn),
addrKnown(5000, 0.001),
filterInventoryKnown(50000, 0.000001)
{
@@ -2694,12 +2695,14 @@ int64_t PoissonNextSend(int64_t nNow, int average_interval_seconds) {
return nNow + (int64_t)(log1p(GetRand(1ULL << 48) * -0.0000000000000035527136788 /* -1/2^48 */) * average_interval_seconds * -1000000.0 + 0.5);
}
/* static */ uint64_t CNode::CalculateKeyedNetGroup(const CAddress& ad)
CSipHasher CConnman::GetDeterministicRandomizer(uint64_t id)
{
static const uint64_t k0 = GetRand(std::numeric_limits<uint64_t>::max());
static const uint64_t k1 = GetRand(std::numeric_limits<uint64_t>::max());
return CSipHasher(nSeed0, nSeed1).Write(id);
}
uint64_t CConnman::CalculateKeyedNetGroup(const CAddress& ad)
{
std::vector<unsigned char> vchNetGroup(ad.GetGroup());
return CSipHasher(k0, k1).Write(&vchNetGroup[0], vchNetGroup.size()).Finalize();
return GetDeterministicRandomizer(RANDOMIZER_ID_NETGROUP).Write(&vchNetGroup[0], vchNetGroup.size()).Finalize();
}