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Set minimum block height for forks (algo switch, BIP66, BIP65, seq algo count)

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8bitcoder
2016-06-30 17:47:28 +02:00
parent 5a8087fede
commit 185bebec9e
4 changed files with 43 additions and 34 deletions
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src/main.cpp
+35 -26
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@@ -1974,14 +1974,17 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
unsigned int flags = SCRIPT_VERIFY_P2SH;
// Start enforcing the DERSIG (BIP66) rules, for block.nVersion=3 blocks, when 75% of the network has upgraded:
if (block.nVersion >= 3 && IsSuperMajority(3, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) {
flags |= SCRIPT_VERIFY_DERSIG;
}
if (pindex->nHeight >= chainparams.GetConsensus().nFork1MinBlock)
{
if (block.nVersion >= 3 && IsSuperMajority(3, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) {
flags |= SCRIPT_VERIFY_DERSIG;
}
// Start enforcing CHECKLOCKTIMEVERIFY, (BIP65) for block.nVersion=4
// blocks, when 75% of the network has upgraded:
if (block.nVersion >= 4 && IsSuperMajority(4, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) {
flags |= SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY;
// Start enforcing CHECKLOCKTIMEVERIFY, (BIP65) for block.nVersion=4
// blocks, when 75% of the network has upgraded:
if (block.nVersion >= 4 && IsSuperMajority(4, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) {
flags |= SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY;
}
}
CBlockUndo blockundo;
@@ -2952,7 +2955,7 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
// previous YESCRYPT block was mined or;
// mining majority and fork height reached
bool bAlgoSwitch1 = false;
if (nHeight >= consensusParams.nAlgoSwitchBlock1)
if (nHeight >= consensusParams.nFork1MinBlock)
{
bAlgoSwitch1 = IsAlgoSwitch1Active(pindexPrev, consensusParams);
if (!bAlgoSwitch1)
@@ -2986,20 +2989,23 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
return state.DoS(100, error("%s: forked chain older than last checkpoint (height %d)", __func__, nHeight));
}
// Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded:
// if (block.nVersion < 2 && IsSuperMajority(2, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams))
// return state.Invalid(error("%s: rejected nVersion=1 block", __func__),
// REJECT_OBSOLETE, "bad-version");
if (nHeight >= consensusParams.nFork1MinBlock)
{
// Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded:
// if (block.nVersion < 2 && IsSuperMajority(2, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams))
// return state.Invalid(error("%s: rejected nVersion=1 block", __func__),
// REJECT_OBSOLETE, "bad-version");
// Reject block.nVersion=2 blocks when 95% (75% on testnet) of the network has upgraded:
if (block.nVersion < 3 && IsSuperMajority(3, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams))
return state.Invalid(error("%s : rejected nVersion=2 block", __func__),
REJECT_OBSOLETE, "bad-version");
// Reject block.nVersion=2 blocks when 95% (75% on testnet) of the network has upgraded:
if (block.nVersion < 3 && IsSuperMajority(3, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams))
return state.Invalid(error("%s : rejected nVersion=2 block", __func__),
REJECT_OBSOLETE, "bad-version");
// Reject block.nVersion=3 blocks when 95% (75% on testnet) of the network has upgraded:
if (block.nVersion < 4 && IsSuperMajority(4, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams))
return state.Invalid(error("%s : rejected nVersion=3 block", __func__),
REJECT_OBSOLETE, "bad-version");
// Reject block.nVersion=3 blocks when 95% (75% on testnet) of the network has upgraded:
if (block.nVersion < 4 && IsSuperMajority(4, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams))
return state.Invalid(error("%s : rejected nVersion=3 block", __func__),
REJECT_OBSOLETE, "bad-version");
}
return true;
}
@@ -3022,12 +3028,15 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn
// Enforce block.nVersion=2 rule that the coinbase starts with serialized block height
// if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet):
if (block.nVersion >= 2 && IsSuperMajority(3, pindexPrev, consensusParams.nMajorityEnforceBlockUpgrade, consensusParams))
if (nHeight >= consensusParams.nFork1MinBlock)
{
CScript expect = CScript() << nHeight;
if (block.vtx[0].vin[0].scriptSig.size() < expect.size() ||
!std::equal(expect.begin(), expect.end(), block.vtx[0].vin[0].scriptSig.begin())) {
return state.DoS(100, error("%s: block height mismatch in coinbase", __func__), REJECT_INVALID, "bad-cb-height");
if (block.nVersion >= 2 && IsSuperMajority(3, pindexPrev, consensusParams.nMajorityEnforceBlockUpgrade, consensusParams))
{
CScript expect = CScript() << nHeight;
if (block.vtx[0].vin[0].scriptSig.size() < expect.size() ||
!std::equal(expect.begin(), expect.end(), block.vtx[0].vin[0].scriptSig.begin())) {
return state.DoS(100, error("%s: block height mismatch in coinbase", __func__), REJECT_INVALID, "bad-cb-height");
}
}
}
@@ -3076,7 +3085,7 @@ bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBloc
// Maximum sequence count allowed
int nMaxSeqCount;
if ( (nHeight > chainparams.GetConsensus().nBlockSequentialAlgoRuleStart3) &&
if ( (nHeight > chainparams.GetConsensus().nFork1MinBlock) &&
(block.nVersion > 3) &&
IsSuperMajority(4, pindexPrev, chainparams.GetConsensus().nMajorityEnableAlgoSwitch1, chainparams.GetConsensus()) )
nMaxSeqCount = chainparams.GetConsensus().nBlockSequentialAlgoMaxCount3;