diff options
| -rw-r--r-- | src/main.cpp | 34 | ||||
| -rw-r--r-- | src/main.h | 6 | ||||
| -rw-r--r-- | src/test/checkblock_tests.cpp | 2 |
3 files changed, 21 insertions, 21 deletions
diff --git a/src/main.cpp b/src/main.cpp index d7388077ef..f14d2e51cd 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -1720,7 +1720,7 @@ void ThreadScriptCheck() { bool ConnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& view, bool fJustCheck) { // Check it again in case a previous version let a bad block in - if (!block.CheckBlock(state, !fJustCheck, !fJustCheck)) + if (!CheckBlock(block, state, !fJustCheck, !fJustCheck)) return false; // verify that the view's current state corresponds to the previous block @@ -2188,51 +2188,51 @@ bool FindUndoPos(CValidationState &state, int nFile, CDiskBlockPos &pos, unsigne } -bool CBlock::CheckBlock(CValidationState &state, bool fCheckPOW, bool fCheckMerkleRoot) const +bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bool fCheckMerkleRoot) { // These are checks that are independent of context // that can be verified before saving an orphan block. // Size limits - if (vtx.empty() || vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE) + if (block.vtx.empty() || block.vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE) return state.DoS(100, error("CheckBlock() : size limits failed")); // Check proof of work matches claimed amount - if (fCheckPOW && !CheckProofOfWork(GetHash(), nBits)) + if (fCheckPOW && !CheckProofOfWork(block.GetHash(), block.nBits)) return state.DoS(50, error("CheckBlock() : proof of work failed")); // Check timestamp - if (GetBlockTime() > GetAdjustedTime() + 2 * 60 * 60) + if (block.GetBlockTime() > GetAdjustedTime() + 2 * 60 * 60) return state.Invalid(error("CheckBlock() : block timestamp too far in the future")); // First transaction must be coinbase, the rest must not be - if (vtx.empty() || !vtx[0].IsCoinBase()) + if (block.vtx.empty() || !block.vtx[0].IsCoinBase()) return state.DoS(100, error("CheckBlock() : first tx is not coinbase")); - for (unsigned int i = 1; i < vtx.size(); i++) - if (vtx[i].IsCoinBase()) + for (unsigned int i = 1; i < block.vtx.size(); i++) + if (block.vtx[i].IsCoinBase()) return state.DoS(100, error("CheckBlock() : more than one coinbase")); // Check transactions - BOOST_FOREACH(const CTransaction& tx, vtx) + BOOST_FOREACH(const CTransaction& tx, block.vtx) if (!CheckTransaction(tx, state)) return error("CheckBlock() : CheckTransaction failed"); // Build the merkle tree already. We need it anyway later, and it makes the // block cache the transaction hashes, which means they don't need to be // recalculated many times during this block's validation. - BuildMerkleTree(); + block.BuildMerkleTree(); // Check for duplicate txids. This is caught by ConnectInputs(), // but catching it earlier avoids a potential DoS attack: set<uint256> uniqueTx; - for (unsigned int i=0; i<vtx.size(); i++) { - uniqueTx.insert(GetTxHash(i)); + for (unsigned int i = 0; i < block.vtx.size(); i++) { + uniqueTx.insert(block.GetTxHash(i)); } - if (uniqueTx.size() != vtx.size()) + if (uniqueTx.size() != block.vtx.size()) return state.DoS(100, error("CheckBlock() : duplicate transaction")); unsigned int nSigOps = 0; - BOOST_FOREACH(const CTransaction& tx, vtx) + BOOST_FOREACH(const CTransaction& tx, block.vtx) { nSigOps += GetLegacySigOpCount(tx); } @@ -2240,7 +2240,7 @@ bool CBlock::CheckBlock(CValidationState &state, bool fCheckPOW, bool fCheckMerk return state.DoS(100, error("CheckBlock() : out-of-bounds SigOpCount")); // Check merkle root - if (fCheckMerkleRoot && hashMerkleRoot != BuildMerkleTree()) + if (fCheckMerkleRoot && block.hashMerkleRoot != block.BuildMerkleTree()) return state.DoS(100, error("CheckBlock() : hashMerkleRoot mismatch")); return true; @@ -2366,7 +2366,7 @@ bool ProcessBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDiskBl return state.Invalid(error("ProcessBlock() : already have block (orphan) %s", hash.ToString().c_str())); // Preliminary checks - if (!pblock->CheckBlock(state)) + if (!CheckBlock(*pblock, state)) return error("ProcessBlock() : CheckBlock FAILED"); CBlockIndex* pcheckpoint = Checkpoints::GetLastCheckpoint(mapBlockIndex); @@ -2763,7 +2763,7 @@ bool VerifyDB(int nCheckLevel, int nCheckDepth) if (!ReadBlockFromDisk(block, pindex)) return error("VerifyDB() : *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString().c_str()); // check level 1: verify block validity - if (nCheckLevel >= 1 && !block.CheckBlock(state)) + if (nCheckLevel >= 1 && !CheckBlock(block, state)) return error("VerifyDB() : *** found bad block at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString().c_str()); // check level 2: verify undo validity if (nCheckLevel >= 2 && pindex) { diff --git a/src/main.h b/src/main.h index e44844a79e..022c6ad074 100644 --- a/src/main.h +++ b/src/main.h @@ -703,9 +703,6 @@ public: } - // Context-independent validity checks - bool CheckBlock(CValidationState &state, bool fCheckPOW=true, bool fCheckMerkleRoot=true) const; - // Store block on disk // if dbp is provided, the file is known to already reside on disk bool AcceptBlock(CValidationState &state, CDiskBlockPos *dbp = NULL); @@ -732,6 +729,9 @@ bool ConnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, C // Add this block to the block index, and if necessary, switch the active block chain to this bool AddToBlockIndex(CBlock& block, CValidationState& state, const CDiskBlockPos& pos); +// Context-independent validity checks +bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW = true, bool fCheckMerkleRoot = true); + class CBlockFileInfo diff --git a/src/test/checkblock_tests.cpp b/src/test/checkblock_tests.cpp index d626f9a6f4..5675c40e76 100644 --- a/src/test/checkblock_tests.cpp +++ b/src/test/checkblock_tests.cpp @@ -55,7 +55,7 @@ BOOST_AUTO_TEST_CASE(May15) // After May 15'th, big blocks are OK: forkingBlock.nTime = tMay15; // Invalidates PoW - BOOST_CHECK(forkingBlock.CheckBlock(state, false, false)); + BOOST_CHECK(CheckBlock(forkingBlock, state, false, false)); } SetMockTime(0); |