diff options
| -rw-r--r-- | src/chainparams.cpp | 9 | ||||
| -rw-r--r-- | src/chainparams.h | 8 | ||||
| -rw-r--r-- | src/main.cpp | 34 | ||||
| -rw-r--r-- | src/main.h | 5 |
4 files changed, 34 insertions, 22 deletions
diff --git a/src/chainparams.cpp b/src/chainparams.cpp index 75a14c6013..86d80629eb 100644 --- a/src/chainparams.cpp +++ b/src/chainparams.cpp @@ -112,6 +112,9 @@ public: nRPCPort = 8332; bnProofOfWorkLimit = ~uint256(0) >> 32; nSubsidyHalvingInterval = 210000; + nEnforceBlockUpgradeMajority = 750; + nRejectBlockOutdatedMajority = 950; + nToCheckBlockUpgradeMajority = 1000; nMinerThreads = 0; // Build the genesis block. Note that the output of the genesis coinbase cannot @@ -199,6 +202,9 @@ public: vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a"); nDefaultPort = 18333; nRPCPort = 18332; + nEnforceBlockUpgradeMajority = 51; + nRejectBlockOutdatedMajority = 75; + nToCheckBlockUpgradeMajority = 100; strDataDir = "testnet3"; // Modify the testnet genesis block so the timestamp is valid for a later start. @@ -234,6 +240,9 @@ public: pchMessageStart[2] = 0xb5; pchMessageStart[3] = 0xda; nSubsidyHalvingInterval = 150; + nEnforceBlockUpgradeMajority = 750; + nRejectBlockOutdatedMajority = 950; + nToCheckBlockUpgradeMajority = 1000; nMinerThreads = 1; bnProofOfWorkLimit = ~uint256(0) >> 1; genesis.nTime = 1296688602; diff --git a/src/chainparams.h b/src/chainparams.h index f0c90bf50f..f400907d73 100644 --- a/src/chainparams.h +++ b/src/chainparams.h @@ -57,6 +57,11 @@ public: int GetDefaultPort() const { return nDefaultPort; } const uint256& ProofOfWorkLimit() const { return bnProofOfWorkLimit; } int SubsidyHalvingInterval() const { return nSubsidyHalvingInterval; } + /* Used to check majorities for block version upgrade */ + int EnforceBlockUpgradeMajority() const { return nEnforceBlockUpgradeMajority; } + int RejectBlockOutdatedMajority() const { return nRejectBlockOutdatedMajority; } + int ToCheckBlockUpgradeMajority() const { return nToCheckBlockUpgradeMajority; } + /* Used if GenerateBitcoins is called with a negative number of threads */ int DefaultMinerThreads() const { return nMinerThreads; } virtual const CBlock& GenesisBlock() const = 0; @@ -85,6 +90,9 @@ protected: int nRPCPort; uint256 bnProofOfWorkLimit; int nSubsidyHalvingInterval; + int nEnforceBlockUpgradeMajority; + int nRejectBlockOutdatedMajority; + int nToCheckBlockUpgradeMajority; string strDataDir; int nMinerThreads; vector<CDNSSeedData> vSeeds; diff --git a/src/main.cpp b/src/main.cpp index 30fa9c6d70..e6519864d8 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -2469,14 +2469,11 @@ bool AcceptBlockHeader(CBlockHeader& block, CValidationState& state, CBlockIndex return state.DoS(100, error("AcceptBlock() : forked chain older than last checkpoint (height %d)", nHeight)); // Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded: - if (block.nVersion < 2) + if (block.nVersion < 2 && + CBlockIndex::IsSuperMajority(2, pindexPrev, Params().RejectBlockOutdatedMajority())) { - if ((!TestNet() && CBlockIndex::IsSuperMajority(2, pindexPrev, 950, 1000)) || - (TestNet() && CBlockIndex::IsSuperMajority(2, pindexPrev, 75, 100))) - { - return state.Invalid(error("AcceptBlock() : rejected nVersion=1 block"), - REJECT_OBSOLETE, "bad-version"); - } + return state.Invalid(error("AcceptBlock() : rejected nVersion=1 block"), + REJECT_OBSOLETE, "bad-version"); } } @@ -2517,19 +2514,15 @@ bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex** ppindex, } // Enforce block.nVersion=2 rule that the coinbase starts with serialized block height - if (block.nVersion >= 2) + // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet): + if (block.nVersion >= 2 && + CBlockIndex::IsSuperMajority(2, pindex->pprev, Params().EnforceBlockUpgradeMajority())) { - // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet): - if ((!TestNet() && CBlockIndex::IsSuperMajority(2, pindex->pprev, 750, 1000)) || - (TestNet() && CBlockIndex::IsSuperMajority(2, pindex->pprev, 51, 100))) - { - 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())) { - pindex->nStatus |= BLOCK_FAILED_VALID; - return state.DoS(100, error("AcceptBlock() : block height mismatch in coinbase"), - REJECT_INVALID, "bad-cb-height"); - } + 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())) { + pindex->nStatus |= BLOCK_FAILED_VALID; + return state.DoS(100, error("AcceptBlock() : block height mismatch in coinbase"), REJECT_INVALID, "bad-cb-height"); } } @@ -2563,8 +2556,9 @@ bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex** ppindex, return true; } -bool CBlockIndex::IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned int nRequired, unsigned int nToCheck) +bool CBlockIndex::IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned int nRequired) { + unsigned int nToCheck = Params().ToCheckBlockUpgradeMajority(); unsigned int nFound = 0; for (unsigned int i = 0; i < nToCheck && nFound < nRequired && pstart != NULL; i++) { diff --git a/src/main.h b/src/main.h index 42cf4a0861..58515b44b9 100644 --- a/src/main.h +++ b/src/main.h @@ -848,10 +848,11 @@ public: /** * Returns true if there are nRequired or more blocks of minVersion or above - * in the last nToCheck blocks, starting at pstart and going backwards. + * in the last Params().ToCheckBlockUpgradeMajority() blocks, starting at pstart + * and going backwards. */ static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, - unsigned int nRequired, unsigned int nToCheck); + unsigned int nRequired); std::string ToString() const { |