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new safety feature displays a warning message and locks down RPC if it detects a problem that may require an upgrade

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-- version 0.3.8
This commit is contained in:
Satoshi Nakamoto 2010-08-04 01:51:34 +00:00 committed by Gavin Andresen
parent 73aa262647
commit b34e8c3c36
8 changed files with 81 additions and 34 deletions
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13
db.cpp
View File

@ -342,6 +342,16 @@ bool CTxDB::WriteHashBestChain(uint256 hashBestChain)
return Write(string("hashBestChain"), hashBestChain);
}
bool CTxDB::ReadBestInvalidWork(CBigNum& bnBestInvalidWork)
{
return Read(string("bnBestInvalidWork"), bnBestInvalidWork);
}
bool CTxDB::WriteBestInvalidWork(CBigNum bnBestInvalidWork)
{
return Write(string("bnBestInvalidWork"), bnBestInvalidWork);
}
CBlockIndex* InsertBlockIndex(uint256 hash)
{
if (hash == 0)
@ -446,6 +456,9 @@ bool CTxDB::LoadBlockIndex()
bnBestChainWork = pindexBest->bnChainWork;
printf("LoadBlockIndex(): hashBestChain=%s height=%d\n", hashBestChain.ToString().substr(0,16).c_str(), nBestHeight);
// Load bnBestInvalidWork, OK if it doesn't exist
ReadBestInvalidWork(bnBestInvalidWork);
return true;
}

2
db.h
View File

@ -280,6 +280,8 @@ public:
bool EraseBlockIndex(uint256 hash);
bool ReadHashBestChain(uint256& hashBestChain);
bool WriteHashBestChain(uint256 hashBestChain);
bool ReadBestInvalidWork(CBigNum& bnBestInvalidWork);
bool WriteBestInvalidWork(CBigNum bnBestInvalidWork);
bool LoadBlockIndex();
};

60
main.cpp
View File

@ -25,6 +25,7 @@ const uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6
CBlockIndex* pindexGenesisBlock = NULL;
int nBestHeight = -1;
CBigNum bnBestChainWork = 0;
CBigNum bnBestInvalidWork = 0;
uint256 hashBestChain = 0;
CBlockIndex* pindexBest = NULL;
int64 nTimeBestReceived = 0;
@ -794,12 +795,12 @@ uint256 GetOrphanRoot(const CBlock* pblock)
return pblock->GetHash();
}
int64 CBlock::GetBlockValue(int64 nFees) const
int64 CBlock::GetBlockValue(int nHeight, int64 nFees) const
{
int64 nSubsidy = 50 * COIN;
// Subsidy is cut in half every 4 years
nSubsidy >>= (nBestHeight / 210000);
nSubsidy >>= (nHeight / 210000);
return nSubsidy + nFees;
}
@ -865,6 +866,28 @@ bool IsInitialBlockDownload()
pindexBest->nTime < GetTime() - 24 * 60 * 60);
}
bool IsLockdown()
{
if (!pindexBest)
return false;
return (bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6);
}
void Lockdown(CBlockIndex* pindexNew)
{
if (pindexNew->bnChainWork > bnBestInvalidWork)
{
bnBestInvalidWork = pindexNew->bnChainWork;
CTxDB().WriteBestInvalidWork(bnBestInvalidWork);
MainFrameRepaint();
}
printf("Lockdown: invalid block=%s height=%d work=%s\n", pindexNew->GetBlockHash().ToString().substr(0,22).c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str());
printf("Lockdown: current best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,22).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
printf("Lockdown: IsLockdown()=%d\n", (IsLockdown() ? 1 : 0));
if (IsLockdown())
printf("Lockdown: WARNING: Displayed transactions may not be correct! You may need to upgrade.\n");
}
@ -1086,7 +1109,7 @@ bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex)
return false;
}
if (vtx[0].GetValueOut() > GetBlockValue(nFees))
if (vtx[0].GetValueOut() > GetBlockValue(pindex->nHeight, nFees))
return false;
// Update block index on disk without changing it in memory.
@ -1116,11 +1139,13 @@ bool Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)
CBlockIndex* plonger = pindexNew;
while (pfork != plonger)
{
if (!(pfork = pfork->pprev))
return error("Reorganize() : pfork->pprev is null");
while (plonger->nHeight > pfork->nHeight)
if (!(plonger = plonger->pprev))
return error("Reorganize() : plonger->pprev is null");
if (pfork == plonger)
break;
if (!(pfork = pfork->pprev))
return error("Reorganize() : pfork->pprev is null");
}
// List of what to disconnect
@ -1160,16 +1185,8 @@ bool Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)
return error("Reorganize() : ReadFromDisk for connect failed");
if (!block.ConnectBlock(txdb, pindex))
{
// Invalid block, delete the rest of this branch
// Invalid block
txdb.TxnAbort();
for (int j = i; j < vConnect.size(); j++)
{
CBlockIndex* pindex = vConnect[j];
pindex->EraseBlockFromDisk();
txdb.EraseBlockIndex(pindex->GetBlockHash());
mapBlockIndex.erase(pindex->GetBlockHash());
delete pindex;
}
return error("Reorganize() : ConnectBlock failed");
}
@ -1227,12 +1244,12 @@ bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
pindexNew->bnChainWork = (pindexNew->pprev ? pindexNew->pprev->bnChainWork : 0) + pindexNew->GetBlockWork();
CTxDB txdb;
txdb.TxnBegin();
txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));
// New best
if (pindexNew->bnChainWork > bnBestChainWork)
{
txdb.TxnBegin();
if (pindexGenesisBlock == NULL && hash == hashGenesisBlock)
{
pindexGenesisBlock = pindexNew;
@ -1244,9 +1261,7 @@ bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash))
{
txdb.TxnAbort();
pindexNew->EraseBlockFromDisk();
mapBlockIndex.erase(pindexNew->GetBlockHash());
delete pindexNew;
Lockdown(pindexNew);
return error("AddToBlockIndex() : ConnectBlock failed");
}
txdb.TxnCommit();
@ -1262,9 +1277,11 @@ bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
if (!Reorganize(txdb, pindexNew))
{
txdb.TxnAbort();
Lockdown(pindexNew);
return error("AddToBlockIndex() : Reorganize failed");
}
}
txdb.TxnCommit();
// New best block
hashBestChain = hash;
@ -1273,10 +1290,9 @@ bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
bnBestChainWork = pindexNew->bnChainWork;
nTimeBestReceived = GetTime();
nTransactionsUpdated++;
printf("AddToBlockIndex: new best=%s height=%d\n", hashBestChain.ToString().substr(0,16).c_str(), nBestHeight);
printf("AddToBlockIndex: new best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,22).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
}
txdb.TxnCommit();
txdb.Close();
if (pindexNew == pindexBest)
@ -1352,7 +1368,7 @@ bool CBlock::AcceptBlock()
// Check that all transactions are finalized
foreach(const CTransaction& tx, vtx)
if (!tx.IsFinal(nTime))
if (!tx.IsFinal(pindexPrev->nHeight+1, nTime))
return error("AcceptBlock() : contains a non-final transaction");
// Check proof of work
@ -2648,7 +2664,7 @@ void BitcoinMiner()
}
}
pblock->nBits = nBits;
pblock->vtx[0].vout[0].nValue = pblock->GetBlockValue(nFees);
pblock->vtx[0].vout[0].nValue = pblock->GetBlockValue(pindexPrev->nHeight+1, nFees);
printf("Running BitcoinMiner with %d transactions in block\n", pblock->vtx.size());

13
main.h
View File

@ -33,6 +33,7 @@ extern const uint256 hashGenesisBlock;
extern CBlockIndex* pindexGenesisBlock;
extern int nBestHeight;
extern CBigNum bnBestChainWork;
extern CBigNum bnBestInvalidWork;
extern uint256 hashBestChain;
extern CBlockIndex* pindexBest;
extern unsigned int nTransactionsUpdated;
@ -80,6 +81,7 @@ void GenerateBitcoins(bool fGenerate);
void ThreadBitcoinMiner(void* parg);
void BitcoinMiner();
bool IsInitialBlockDownload();
bool IsLockdown();
@ -410,15 +412,16 @@ public:
return SerializeHash(*this);
}
bool IsFinal(int64 nBlockTime=0) const
bool IsFinal(int nBlockHeight=0, int64 nBlockTime=0) const
{
// Time based nLockTime implemented in 0.1.6,
// do not use time based until most 0.1.5 nodes have upgraded.
// Time based nLockTime implemented in 0.1.6
if (nLockTime == 0)
return true;
if (nBlockHeight == 0)
nBlockHeight = nBestHeight;
if (nBlockTime == 0)
nBlockTime = GetAdjustedTime();
if (nLockTime < (nLockTime < 500000000 ? nBestHeight : nBlockTime))
if (nLockTime < (nLockTime < 500000000 ? nBlockHeight : nBlockTime))
return true;
foreach(const CTxIn& txin, vin)
if (!txin.IsFinal())
@ -1046,7 +1049,7 @@ public:
}
int64 GetBlockValue(int64 nFees) const;
int64 GetBlockValue(int nHeight, int64 nFees) const;
bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);
bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);
bool ReadFromDisk(const CBlockIndex* blockindex, bool fReadTransactions=true);

4
rpc.cpp
View File

@ -946,6 +946,10 @@ void ThreadRPCServer2(void* parg)
printf("ThreadRPCServer method=%s\n", strMethod.c_str());
// Observe lockdown
if (IsLockdown() && strMethod != "help" && strMethod != "stop" && strMethod != "getgenerate" && strMethod != "setgenerate")
throw runtime_error("WARNING: Displayed transactions may not be correct! You may need to upgrade.");
// Execute
map<string, rpcfn_type>::iterator mi = mapCallTable.find(strMethod);
if (mi == mapCallTable.end())

2
serialize.h
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@ -19,7 +19,7 @@ class CScript;
class CDataStream;
class CAutoFile;
static const int VERSION = 307;
static const int VERSION = 308;
static const char* pszSubVer = "";

6
setup.nsi
View File

@ -7,7 +7,7 @@ RequestExecutionLevel highest
# General Symbol Definitions
!define REGKEY "SOFTWARE\$(^Name)"
!define VERSION 0.3.7
!define VERSION 0.3.8
!define COMPANY "Bitcoin project"
!define URL http://www.bitcoin.org/
@ -42,12 +42,12 @@ Var StartMenuGroup
!insertmacro MUI_LANGUAGE English
# Installer attributes
OutFile bitcoin-0.3.7-win32-setup.exe
OutFile bitcoin-0.3.8-win32-setup.exe
InstallDir $PROGRAMFILES\Bitcoin
CRCCheck on
XPStyle on
ShowInstDetails show
VIProductVersion 0.3.7.0
VIProductVersion 0.3.8.0
VIAddVersionKey ProductName Bitcoin
VIAddVersionKey ProductVersion "${VERSION}"
VIAddVersionKey CompanyName "${COMPANY}"

15
ui.cpp
View File

@ -196,6 +196,8 @@ bool ThreadSafeAskFee(int64 nFeeRequired, const string& strCaption, wxWindow* pa
void CalledSetStatusBar(const string& strText, int nField)
{
if (nField == 0 && IsLockdown())
return;
if (pframeMain && pframeMain->m_statusBar)
pframeMain->m_statusBar->SetStatusText(strText, nField);
}
@ -376,7 +378,7 @@ void CMainFrame::OnIconize(wxIconizeEvent& event)
// to get rid of the deprecated warning. Just ignore it.
if (!event.Iconized())
fClosedToTray = false;
#ifdef __WXGTK__
#if defined(__WXGTK__) || defined(__WXMAC_OSX__)
if (mapArgs.count("-minimizetotray")) {
#endif
// The tray icon sometimes disappears on ubuntu karmic
@ -1011,6 +1013,13 @@ void CMainFrame::OnPaintListCtrl(wxPaintEvent& event)
RefreshStatusColumn();
// Update status bar
static bool fPrevLockdown;
if (IsLockdown())
m_statusBar->SetStatusText(string(" ") + _("WARNING: Displayed transactions may not be correct! You may need to upgrade."), 0);
else if (fPrevLockdown)
m_statusBar->SetStatusText("", 0);
fPrevLockdown = IsLockdown();
string strGen = "";
if (fGenerateBitcoins)
strGen = _(" Generating");
@ -1598,7 +1607,7 @@ COptionsDialog::COptionsDialog(wxWindow* parent) : COptionsDialogBase(parent)
//m_listBox->Append(_("Test 2"));
m_listBox->SetSelection(0);
SelectPage(0);
#ifdef __WXGTK__
#if defined(__WXGTK__) || defined(__WXMAC_OSX__)
m_checkBoxStartOnSystemStartup->SetLabel(_("&Start Bitcoin on window system startup"));
if (!mapArgs.count("-minimizetotray"))
{
@ -2697,7 +2706,7 @@ void CreateMainWindow()
pframeMain = new CMainFrame(NULL);
if (mapArgs.count("-min"))
pframeMain->Iconize(true);
#ifdef __WXGTK__
#if defined(__WXGTK__) || defined(__WXMAC_OSX__)
if (!mapArgs.count("-minimizetotray"))
fMinimizeToTray = false;
#endif