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| author | Peter Todd <pete@petertodd.org> | 2015-06-28 14:30:50 -0400 |
|---|---|---|
| committer | Peter Todd <pete@petertodd.org> | 2015-10-08 17:48:51 +0200 |
| commit | 5e82e1c8f534f8685fb72a34e47c3beb36738783 (patch) | |
| tree | 24122f5f5bd2c807e38d163879f2ae86af937720 | |
| parent | 6ea5ca4b4e067cac3ad8de2027266bc62a8cb106 (diff) | |
| download | bitcoin-5e82e1c8f534f8685fb72a34e47c3beb36738783.tar.xz | |
Add CHECKLOCKTIMEVERIFY (BIP65) soft-fork logic
Based on the earlier BIP66 soft-fork logic implemented by Pieter
Wuille's 5a47811da5158df763aa2fca09ce646ee0c51e7b
Rebased-From: 287f54fc90c29301faede8d4ac2ea24a91441917
| -rw-r--r-- | src/main.cpp | 14 | ||||
| -rw-r--r-- | src/primitives/block.h | 2 | ||||
| -rw-r--r-- | src/script/bitcoinconsensus.h | 7 |
3 files changed, 18 insertions, 5 deletions
diff --git a/src/main.cpp b/src/main.cpp index cb41afc96b..2a6fa7d0b8 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -1853,11 +1853,18 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin unsigned int flags = fStrictPayToScriptHash ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE; - // Start enforcing the DERSIG (BIP66) rules, for block.nVersion=3 blocks, when 75% of the network has upgraded: + // 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; } + // 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; CCheckQueueControl<CScriptCheck> control(fScriptChecks && nScriptCheckThreads ? &scriptcheckqueue : NULL); @@ -2788,6 +2795,11 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta 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"); + return true; } diff --git a/src/primitives/block.h b/src/primitives/block.h index 59f46deb1c..90b8904ab8 100644 --- a/src/primitives/block.h +++ b/src/primitives/block.h @@ -21,7 +21,7 @@ class CBlockHeader { public: // header - static const int32_t CURRENT_VERSION=3; + static const int32_t CURRENT_VERSION=4; int32_t nVersion; uint256 hashPrevBlock; uint256 hashMerkleRoot; diff --git a/src/script/bitcoinconsensus.h b/src/script/bitcoinconsensus.h index 0320577797..a48ff1e18d 100644 --- a/src/script/bitcoinconsensus.h +++ b/src/script/bitcoinconsensus.h @@ -44,9 +44,10 @@ typedef enum bitcoinconsensus_error_t /** Script verification flags */ enum { - bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NONE = 0, - bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH = (1U << 0), // evaluate P2SH (BIP16) subscripts - bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG = (1U << 2), // enforce strict DER (BIP66) compliance + bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NONE = 0, + bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH = (1U << 0), // evaluate P2SH (BIP16) subscripts + bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG = (1U << 2), // enforce strict DER (BIP66) compliance + bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9), // enable CHECKLOCKTIMEVERIFY (BIP65) }; /// Returns 1 if the input nIn of the serialized transaction pointed to by |