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Merge #7906: net: prerequisites for p2p encapsulation changes

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5d5e7a0 net: No need to export ConnectNode (Cory Fields)
e9ed620 net: No need to export DumpBanlist (Cory Fields)
8b8f877 net: make Ban/Unban/ClearBan functionality consistent (Cory Fields)
cca221f net: Drop CNodeRef for AttemptToEvictConnection (Cory Fields)
563f375 net: use the exposed GetNodeSignals() rather than g_signals directly (Cory Fields)
9faa490 net: remove unused set (Cory Fields)
52cbce2 net: don't import std namespace (Cory Fields)
This commit is contained in:
Wladimir J. van der Laan 2016-05-18 12:13:00 +02:00
commit 83121cca75
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GPG Key ID: 74810B012346C9A6
4 changed files with 117 additions and 146 deletions
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231
src/net.cpp
View File

@ -56,7 +56,6 @@
#endif
#endif
using namespace std;
namespace {
const int MAX_OUTBOUND_CONNECTIONS = 8;
@ -78,7 +77,7 @@ bool fDiscover = true;
bool fListen = true;
uint64_t nLocalServices = NODE_NETWORK;
CCriticalSection cs_mapLocalHost;
map<CNetAddr, LocalServiceInfo> mapLocalHost;
std::map<CNetAddr, LocalServiceInfo> mapLocalHost;
static bool vfLimited[NET_MAX] = {};
static CNode* pnodeLocalHost = NULL;
uint64_t nLocalHostNonce = 0;
@ -88,20 +87,17 @@ int nMaxConnections = DEFAULT_MAX_PEER_CONNECTIONS;
bool fAddressesInitialized = false;
std::string strSubVersion;
vector<CNode*> vNodes;
std::vector<CNode*> vNodes;
CCriticalSection cs_vNodes;
map<uint256, CTransaction> mapRelay;
deque<pair<int64_t, uint256> > vRelayExpiration;
std::map<uint256, CTransaction> mapRelay;
std::deque<std::pair<int64_t, uint256> > vRelayExpiration;
CCriticalSection cs_mapRelay;
limitedmap<uint256, int64_t> mapAlreadyAskedFor(MAX_INV_SZ);
static deque<string> vOneShots;
static std::deque<std::string> vOneShots;
CCriticalSection cs_vOneShots;
set<CNetAddr> setservAddNodeAddresses;
CCriticalSection cs_setservAddNodeAddresses;
vector<std::string> vAddedNodes;
std::vector<std::string> vAddedNodes;
CCriticalSection cs_vAddedNodes;
NodeId nLastNodeId = 0;
@ -135,7 +131,7 @@ bool GetLocal(CService& addr, const CNetAddr *paddrPeer)
int nBestReachability = -1;
{
LOCK(cs_mapLocalHost);
for (map<CNetAddr, LocalServiceInfo>::iterator it = mapLocalHost.begin(); it != mapLocalHost.end(); it++)
for (std::map<CNetAddr, LocalServiceInfo>::iterator it = mapLocalHost.begin(); it != mapLocalHost.end(); it++)
{
int nScore = (*it).second.nScore;
int nReachability = (*it).first.GetReachabilityFrom(paddrPeer);
@ -426,6 +422,26 @@ CNode* ConnectNode(CAddress addrConnect, const char *pszDest)
return NULL;
}
static void DumpBanlist()
{
CNode::SweepBanned(); // clean unused entries (if bantime has expired)
if (!CNode::BannedSetIsDirty())
return;
int64_t nStart = GetTimeMillis();
CBanDB bandb;
banmap_t banmap;
CNode::SetBannedSetDirty(false);
CNode::GetBanned(banmap);
if (!bandb.Write(banmap))
CNode::SetBannedSetDirty(true);
LogPrint("net", "Flushed %d banned node ips/subnets to banlist.dat %dms\n",
banmap.size(), GetTimeMillis() - nStart);
}
void CNode::CloseSocketDisconnect()
{
fDisconnect = true;
@ -443,7 +459,7 @@ void CNode::CloseSocketDisconnect()
void CNode::PushVersion()
{
int nBestHeight = g_signals.GetHeight().get_value_or(0);
int nBestHeight = GetNodeSignals().GetHeight().get_value_or(0);
int64_t nTime = (fInbound ? GetAdjustedTime() : GetTime());
CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService("0.0.0.0",0)));
@ -466,11 +482,15 @@ CCriticalSection CNode::cs_setBanned;
bool CNode::setBannedIsDirty;
void CNode::ClearBanned()
{
{
LOCK(cs_setBanned);
setBanned.clear();
setBannedIsDirty = true;
}
DumpBanlist(); //store banlist to disk
uiInterface.BannedListChanged();
}
bool CNode::IsBanned(CNetAddr ip)
{
@ -520,12 +540,26 @@ void CNode::Ban(const CSubNet& subNet, const BanReason &banReason, int64_t banti
}
banEntry.nBanUntil = (sinceUnixEpoch ? 0 : GetTime() )+bantimeoffset;
{
LOCK(cs_setBanned);
if (setBanned[subNet].nBanUntil < banEntry.nBanUntil)
if (setBanned[subNet].nBanUntil < banEntry.nBanUntil) {
setBanned[subNet] = banEntry;
setBannedIsDirty = true;
}
else
return;
}
uiInterface.BannedListChanged();
{
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes) {
if (subNet.Match((CNetAddr)pnode->addr))
pnode->fDisconnect = true;
}
}
if(banReason == BanReasonManuallyAdded)
DumpBanlist(); //store banlist to disk immediately if user requested ban
}
bool CNode::Unban(const CNetAddr &addr) {
CSubNet subNet(addr);
@ -533,13 +567,15 @@ bool CNode::Unban(const CNetAddr &addr) {
}
bool CNode::Unban(const CSubNet &subNet) {
LOCK(cs_setBanned);
if (setBanned.erase(subNet))
{
setBannedIsDirty = true;
return true;
}
LOCK(cs_setBanned);
if (!setBanned.erase(subNet))
return false;
setBannedIsDirty = true;
}
uiInterface.BannedListChanged();
DumpBanlist(); //store banlist to disk immediately
return true;
}
void CNode::GetBanned(banmap_t &banMap)
@ -796,53 +832,24 @@ void SocketSendData(CNode *pnode)
pnode->vSendMsg.erase(pnode->vSendMsg.begin(), it);
}
static list<CNode*> vNodesDisconnected;
static std::list<CNode*> vNodesDisconnected;
class CNodeRef {
public:
CNodeRef(CNode *pnode) : _pnode(pnode) {
LOCK(cs_vNodes);
_pnode->AddRef();
}
~CNodeRef() {
LOCK(cs_vNodes);
_pnode->Release();
}
CNode& operator *() const {return *_pnode;};
CNode* operator ->() const {return _pnode;};
CNodeRef& operator =(const CNodeRef& other)
struct NodeEvictionCandidate
{
if (this != &other) {
LOCK(cs_vNodes);
_pnode->Release();
_pnode = other._pnode;
_pnode->AddRef();
}
return *this;
}
CNodeRef(const CNodeRef& other):
_pnode(other._pnode)
{
LOCK(cs_vNodes);
_pnode->AddRef();
}
private:
CNode *_pnode;
NodeId id;
int64_t nTimeConnected;
int64_t nMinPingUsecTime;
CAddress addr;
};
static bool ReverseCompareNodeMinPingTime(const CNodeRef &a, const CNodeRef &b)
static bool ReverseCompareNodeMinPingTime(const NodeEvictionCandidate &a, const NodeEvictionCandidate &b)
{
return a->nMinPingUsecTime > b->nMinPingUsecTime;
return a.nMinPingUsecTime > b.nMinPingUsecTime;
}
static bool ReverseCompareNodeTimeConnected(const CNodeRef &a, const CNodeRef &b)
static bool ReverseCompareNodeTimeConnected(const NodeEvictionCandidate &a, const NodeEvictionCandidate &b)
{
return a->nTimeConnected > b->nTimeConnected;
return a.nTimeConnected > b.nTimeConnected;
}
class CompareNetGroupKeyed
@ -855,14 +862,14 @@ public:
GetRandBytes(vchSecretKey.data(), vchSecretKey.size());
}
bool operator()(const CNodeRef &a, const CNodeRef &b)
bool operator()(const NodeEvictionCandidate &a, const NodeEvictionCandidate &b)
{
std::vector<unsigned char> vchGroupA, vchGroupB;
CSHA256 hashA, hashB;
std::vector<unsigned char> vchA(32), vchB(32);
vchGroupA = a->addr.GetGroup();
vchGroupB = b->addr.GetGroup();
vchGroupA = a.addr.GetGroup();
vchGroupB = b.addr.GetGroup();
hashA.Write(begin_ptr(vchGroupA), vchGroupA.size());
hashB.Write(begin_ptr(vchGroupB), vchGroupB.size());
@ -886,7 +893,7 @@ public:
* simultaneously better at all of them than honest peers.
*/
static bool AttemptToEvictConnection(bool fPreferNewConnection) {
std::vector<CNodeRef> vEvictionCandidates;
std::vector<NodeEvictionCandidate> vEvictionCandidates;
{
LOCK(cs_vNodes);
@ -897,7 +904,8 @@ static bool AttemptToEvictConnection(bool fPreferNewConnection) {
continue;
if (node->fDisconnect)
continue;
vEvictionCandidates.push_back(CNodeRef(node));
NodeEvictionCandidate candidate = {node->id, node->nTimeConnected, node->nMinPingUsecTime, node->addr};
vEvictionCandidates.push_back(candidate);
}
}
@ -932,16 +940,16 @@ static bool AttemptToEvictConnection(bool fPreferNewConnection) {
std::vector<unsigned char> naMostConnections;
unsigned int nMostConnections = 0;
int64_t nMostConnectionsTime = 0;
std::map<std::vector<unsigned char>, std::vector<CNodeRef> > mapAddrCounts;
BOOST_FOREACH(const CNodeRef &node, vEvictionCandidates) {
mapAddrCounts[node->addr.GetGroup()].push_back(node);
int64_t grouptime = mapAddrCounts[node->addr.GetGroup()][0]->nTimeConnected;
size_t groupsize = mapAddrCounts[node->addr.GetGroup()].size();
std::map<std::vector<unsigned char>, std::vector<NodeEvictionCandidate> > mapAddrCounts;
BOOST_FOREACH(const NodeEvictionCandidate &node, vEvictionCandidates) {
mapAddrCounts[node.addr.GetGroup()].push_back(node);
int64_t grouptime = mapAddrCounts[node.addr.GetGroup()][0].nTimeConnected;
size_t groupsize = mapAddrCounts[node.addr.GetGroup()].size();
if (groupsize > nMostConnections || (groupsize == nMostConnections && grouptime > nMostConnectionsTime)) {
nMostConnections = groupsize;
nMostConnectionsTime = grouptime;
naMostConnections = node->addr.GetGroup();
naMostConnections = node.addr.GetGroup();
}
}
@ -956,10 +964,16 @@ static bool AttemptToEvictConnection(bool fPreferNewConnection) {
return false;
// Disconnect from the network group with the most connections
vEvictionCandidates[0]->fDisconnect = true;
NodeId evicted = vEvictionCandidates.front().id;
LOCK(cs_vNodes);
for(std::vector<CNode*>::const_iterator it(vNodes.begin()); it != vNodes.end(); ++it) {
if ((*it)->GetId() == evicted) {
(*it)->fDisconnect = true;
return true;
}
}
return false;
}
static void AcceptConnection(const ListenSocket& hListenSocket) {
struct sockaddr_storage sockaddr;
@ -1045,7 +1059,7 @@ void ThreadSocketHandler()
{
LOCK(cs_vNodes);
// Disconnect unused nodes
vector<CNode*> vNodesCopy = vNodes;
std::vector<CNode*> vNodesCopy = vNodes;
BOOST_FOREACH(CNode* pnode, vNodesCopy)
{
if (pnode->fDisconnect ||
@ -1069,7 +1083,7 @@ void ThreadSocketHandler()
}
{
// Delete disconnected nodes
list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
std::list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
BOOST_FOREACH(CNode* pnode, vNodesDisconnectedCopy)
{
// wait until threads are done using it
@ -1120,7 +1134,7 @@ void ThreadSocketHandler()
BOOST_FOREACH(const ListenSocket& hListenSocket, vhListenSocket) {
FD_SET(hListenSocket.socket, &fdsetRecv);
hSocketMax = max(hSocketMax, hListenSocket.socket);
hSocketMax = std::max(hSocketMax, hListenSocket.socket);
have_fds = true;
}
@ -1131,7 +1145,7 @@ void ThreadSocketHandler()
if (pnode->hSocket == INVALID_SOCKET)
continue;
FD_SET(pnode->hSocket, &fdsetError);
hSocketMax = max(hSocketMax, pnode->hSocket);
hSocketMax = std::max(hSocketMax, pnode->hSocket);
have_fds = true;
// Implement the following logic:
@ -1198,7 +1212,7 @@ void ThreadSocketHandler()
//
// Service each socket
//
vector<CNode*> vNodesCopy;
std::vector<CNode*> vNodesCopy;
{
LOCK(cs_vNodes);
vNodesCopy = vNodes;
@ -1355,7 +1369,7 @@ void ThreadMapPort()
}
}
string strDesc = "Bitcoin " + FormatFullVersion();
std::string strDesc = "Bitcoin " + FormatFullVersion();
try {
while (true) {
@ -1441,7 +1455,7 @@ void ThreadDNSAddressSeed()
}
}
const vector<CDNSSeedData> &vSeeds = Params().DNSSeeds();
const std::vector<CDNSSeedData> &vSeeds = Params().DNSSeeds();
int found = 0;
LogPrintf("Loading addresses from DNS seeds (could take a while)\n");
@ -1450,8 +1464,8 @@ void ThreadDNSAddressSeed()
if (HaveNameProxy()) {
AddOneShot(seed.host);
} else {
vector<CNetAddr> vIPs;
vector<CAddress> vAdd;
std::vector<CNetAddr> vIPs;
std::vector<CAddress> vAdd;
if (LookupHost(seed.host.c_str(), vIPs, 0, true))
{
BOOST_FOREACH(const CNetAddr& ip, vIPs)
@ -1508,7 +1522,7 @@ void DumpData()
void static ProcessOneShot()
{
string strDest;
std::string strDest;
{
LOCK(cs_vOneShots);
if (vOneShots.empty())
@ -1574,7 +1588,7 @@ void ThreadOpenConnections()
// Only connect out to one peer per network group (/16 for IPv4).
// Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
int nOutbound = 0;
set<vector<unsigned char> > setConnected;
std::set<std::vector<unsigned char> > setConnected;
{
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes) {
@ -1632,7 +1646,7 @@ void ThreadOpenAddedConnections()
if (HaveNameProxy()) {
while(true) {
list<string> lAddresses(0);
std::list<std::string> lAddresses(0);
{
LOCK(cs_vAddedNodes);
BOOST_FOREACH(const std::string& strAddNode, vAddedNodes)
@ -1650,32 +1664,25 @@ void ThreadOpenAddedConnections()
for (unsigned int i = 0; true; i++)
{
list<string> lAddresses(0);
std::list<std::string> lAddresses(0);
{
LOCK(cs_vAddedNodes);
BOOST_FOREACH(const std::string& strAddNode, vAddedNodes)
lAddresses.push_back(strAddNode);
}
list<vector<CService> > lservAddressesToAdd(0);
std::list<std::vector<CService> > lservAddressesToAdd(0);
BOOST_FOREACH(const std::string& strAddNode, lAddresses) {
vector<CService> vservNode(0);
std::vector<CService> vservNode(0);
if(Lookup(strAddNode.c_str(), vservNode, Params().GetDefaultPort(), fNameLookup, 0))
{
lservAddressesToAdd.push_back(vservNode);
{
LOCK(cs_setservAddNodeAddresses);
BOOST_FOREACH(const CService& serv, vservNode)
setservAddNodeAddresses.insert(serv);
}
}
}
// Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
// (keeping in mind that addnode entries can have many IPs if fNameLookup)
{
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
for (list<vector<CService> >::iterator it = lservAddressesToAdd.begin(); it != lservAddressesToAdd.end(); it++)
for (std::list<std::vector<CService> >::iterator it = lservAddressesToAdd.begin(); it != lservAddressesToAdd.end(); it++)
BOOST_FOREACH(const CService& addrNode, *(it))
if (pnode->addr == addrNode)
{
@ -1684,7 +1691,7 @@ void ThreadOpenAddedConnections()
break;
}
}
BOOST_FOREACH(vector<CService>& vserv, lservAddressesToAdd)
BOOST_FOREACH(std::vector<CService>& vserv, lservAddressesToAdd)
{
CSemaphoreGrant grant(*semOutbound);
OpenNetworkConnection(CAddress(vserv[i % vserv.size()]), &grant);
@ -1731,7 +1738,7 @@ void ThreadMessageHandler()
while (true)
{
vector<CNode*> vNodesCopy;
std::vector<CNode*> vNodesCopy;
{
LOCK(cs_vNodes);
vNodesCopy = vNodes;
@ -1752,7 +1759,7 @@ void ThreadMessageHandler()
TRY_LOCK(pnode->cs_vRecvMsg, lockRecv);
if (lockRecv)
{
if (!g_signals.ProcessMessages(pnode))
if (!GetNodeSignals().ProcessMessages(pnode))
pnode->CloseSocketDisconnect();
if (pnode->nSendSize < SendBufferSize())
@ -1770,7 +1777,7 @@ void ThreadMessageHandler()
{
TRY_LOCK(pnode->cs_vSend, lockSend);
if (lockSend)
g_signals.SendMessages(pnode);
GetNodeSignals().SendMessages(pnode);
}
boost::this_thread::interruption_point();
}
@ -1791,7 +1798,7 @@ void ThreadMessageHandler()
bool BindListenPort(const CService &addrBind, string& strError, bool fWhitelisted)
bool BindListenPort(const CService &addrBind, std::string& strError, bool fWhitelisted)
{
strError = "";
int nOne = 1;
@ -1899,7 +1906,7 @@ void static Discover(boost::thread_group& threadGroup)
char pszHostName[256] = "";
if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
{
vector<CNetAddr> vaddr;
std::vector<CNetAddr> vaddr;
if (LookupHost(pszHostName, vaddr, 0, true))
{
BOOST_FOREACH (const CNetAddr &addr, vaddr)
@ -2300,7 +2307,7 @@ bool CAddrDB::Read(CAddrMan& addr)
// Don't try to resize to a negative number if file is small
if (fileSize >= sizeof(uint256))
dataSize = fileSize - sizeof(uint256);
vector<unsigned char> vchData;
std::vector<unsigned char> vchData;
vchData.resize(dataSize);
uint256 hashIn;
@ -2587,7 +2594,7 @@ bool CBanDB::Read(banmap_t& banSet)
// Don't try to resize to a negative number if file is small
if (fileSize >= sizeof(uint256))
dataSize = fileSize - sizeof(uint256);
vector<unsigned char> vchData;
std::vector<unsigned char> vchData;
vchData.resize(dataSize);
uint256 hashIn;
@ -2627,26 +2634,6 @@ bool CBanDB::Read(banmap_t& banSet)
return true;
}
void DumpBanlist()
{
CNode::SweepBanned(); // clean unused entries (if bantime has expired)
if (!CNode::BannedSetIsDirty())
return;
int64_t nStart = GetTimeMillis();
CBanDB bandb;
banmap_t banmap;
CNode::SetBannedSetDirty(false);
CNode::GetBanned(banmap);
if (!bandb.Write(banmap))
CNode::SetBannedSetDirty(true);
LogPrint("net", "Flushed %d banned node ips/subnets to banlist.dat %dms\n",
banmap.size(), GetTimeMillis() - nStart);
}
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);
}

3
src/net.h
View File

@ -83,7 +83,6 @@ CNode* FindNode(const CNetAddr& ip);
CNode* FindNode(const CSubNet& subNet);
CNode* FindNode(const std::string& addrName);
CNode* FindNode(const CService& ip);
CNode* ConnectNode(CAddress addrConnect, const char *pszDest = NULL);
bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOutbound = NULL, const char *strDest = NULL, bool fOneShot = false);
void MapPort(bool fUseUPnP);
unsigned short GetListenPort();
@ -808,8 +807,6 @@ public:
bool Read(banmap_t& banSet);
};
void DumpBanlist();
/** Return a timestamp in the future (in microseconds) for exponentially distributed events. */
int64_t PoissonNextSend(int64_t nNow, int average_interval_seconds);

5
src/qt/rpcconsole.cpp
View File

@ -885,15 +885,13 @@ void RPCConsole::banSelectedNode(int bantime)
// Get currently selected peer address
QString strNode = GUIUtil::getEntryData(ui->peerWidget, 0, PeerTableModel::Address);
// Find possible nodes, ban it and clear the selected node
if (CNode *bannedNode = FindNode(strNode.toStdString())) {
if (FindNode(strNode.toStdString())) {
std::string nStr = strNode.toStdString();
std::string addr;
int port = 0;
SplitHostPort(nStr, port, addr);
CNode::Ban(CNetAddr(addr), BanReasonManuallyAdded, bantime);
bannedNode->fDisconnect = true;
DumpBanlist();
clearSelectedNode();
clientModel->getBanTableModel()->refresh();
@ -912,7 +910,6 @@ void RPCConsole::unbanSelectedNode()
if (possibleSubnet.IsValid())
{
CNode::Unban(possibleSubnet);
DumpBanlist();
clientModel->getBanTableModel()->refresh();
}
}

10
src/rpc/net.cpp
View File

@ -565,20 +565,12 @@ UniValue setban(const UniValue& params, bool fHelp)
absolute = true;
isSubnet ? CNode::Ban(subNet, BanReasonManuallyAdded, banTime, absolute) : CNode::Ban(netAddr, BanReasonManuallyAdded, banTime, absolute);
//disconnect possible nodes
while(CNode *bannedNode = (isSubnet ? FindNode(subNet) : FindNode(netAddr)))
bannedNode->fDisconnect = true;
}
else if(strCommand == "remove")
{
if (!( isSubnet ? CNode::Unban(subNet) : CNode::Unban(netAddr) ))
throw JSONRPCError(RPC_MISC_ERROR, "Error: Unban failed");
}
DumpBanlist(); //store banlist to disk
uiInterface.BannedListChanged();
return NullUniValue;
}
@ -624,8 +616,6 @@ UniValue clearbanned(const UniValue& params, bool fHelp)
);
CNode::ClearBanned();
DumpBanlist(); //store banlist to disk
uiInterface.BannedListChanged();
return NullUniValue;
}