diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/chain.h | 14 | ||||
| -rw-r--r-- | src/rpc/blockchain.cpp | 2 | ||||
| -rw-r--r-- | src/validation.cpp | 2 | ||||
| -rw-r--r-- | src/wallet/rpcdump.cpp | 6 | ||||
| -rw-r--r-- | src/wallet/test/wallet_tests.cpp | 2 | ||||
| -rw-r--r-- | src/wallet/wallet.cpp | 4 |
6 files changed, 22 insertions, 8 deletions
diff --git a/src/chain.h b/src/chain.h index acb29b667b..eab4d5c58a 100644 --- a/src/chain.h +++ b/src/chain.h @@ -14,6 +14,20 @@ #include <vector> +/** + * Maximum amount of time that a block timestamp is allowed to exceed the + * current network-adjusted time before the block will be accepted. + */ +static const int64_t MAX_FUTURE_BLOCK_TIME = 2 * 60 * 60; + +/** + * Timestamp window used as a grace period by code that compares external + * timestamps (such as timestamps passed to RPCs, or wallet key creation times) + * to block timestamps. This should be set at least as high as + * MAX_FUTURE_BLOCK_TIME. + */ +static const int64_t TIMESTAMP_WINDOW = MAX_FUTURE_BLOCK_TIME; + class CBlockFileInfo { public: diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 6826ce4a79..dd46a3c3ba 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -846,7 +846,7 @@ UniValue pruneblockchain(const JSONRPCRequest& request) // too low to be a block time (corresponds to timestamp from Sep 2001). if (heightParam > 1000000000) { // Add a 2 hour buffer to include blocks which might have had old timestamps - CBlockIndex* pindex = chainActive.FindEarliestAtLeast(heightParam - 7200); + CBlockIndex* pindex = chainActive.FindEarliestAtLeast(heightParam - TIMESTAMP_WINDOW); if (!pindex) { throw JSONRPCError(RPC_INTERNAL_ERROR, "Could not find block with at least the specified timestamp."); } diff --git a/src/validation.cpp b/src/validation.cpp index e84b1a7281..e09eba1aca 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -2983,7 +2983,7 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta return state.Invalid(false, REJECT_INVALID, "time-too-old", "block's timestamp is too early"); // Check timestamp - if (block.GetBlockTime() > nAdjustedTime + 2 * 60 * 60) + if (block.GetBlockTime() > nAdjustedTime + MAX_FUTURE_BLOCK_TIME) return state.Invalid(false, REJECT_INVALID, "time-too-new", "block timestamp too far in the future"); // Reject outdated version blocks when 95% (75% on testnet) of the network has upgraded: diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp index 20a3cbda1e..550eff0c7d 100644 --- a/src/wallet/rpcdump.cpp +++ b/src/wallet/rpcdump.cpp @@ -497,7 +497,7 @@ UniValue importwallet(const JSONRPCRequest& request) pwalletMain->ShowProgress("", 100); // hide progress dialog in GUI CBlockIndex *pindex = chainActive.Tip(); - while (pindex && pindex->pprev && pindex->GetBlockTime() > nTimeBegin - 7200) + while (pindex && pindex->pprev && pindex->GetBlockTime() > nTimeBegin - TIMESTAMP_WINDOW) pindex = pindex->pprev; pwalletMain->UpdateTimeFirstKey(nTimeBegin); @@ -1073,7 +1073,7 @@ UniValue importmulti(const JSONRPCRequest& mainRequest) } if (fRescan && fRunScan && requests.size()) { - CBlockIndex* pindex = nLowestTimestamp > minimumTimestamp ? chainActive.FindEarliestAtLeast(std::max<int64_t>(nLowestTimestamp - 7200, 0)) : chainActive.Genesis(); + CBlockIndex* pindex = nLowestTimestamp > minimumTimestamp ? chainActive.FindEarliestAtLeast(std::max<int64_t>(nLowestTimestamp - TIMESTAMP_WINDOW, 0)) : chainActive.Genesis(); CBlockIndex* scannedRange = nullptr; if (pindex) { scannedRange = pwalletMain->ScanForWalletTransactions(pindex, true); @@ -1090,7 +1090,7 @@ UniValue importmulti(const JSONRPCRequest& mainRequest) // range, or if the import result already has an error set, let // the result stand unmodified. Otherwise replace the result // with an error message. - if (GetImportTimestamp(request, now) - 7200 >= scannedRange->GetBlockTimeMax() || results.at(i).exists("error")) { + if (GetImportTimestamp(request, now) - TIMESTAMP_WINDOW >= scannedRange->GetBlockTimeMax() || results.at(i).exists("error")) { response.push_back(results.at(i)); } else { UniValue result = UniValue(UniValue::VOBJ); diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp index 7ac2112dd2..34a0608547 100644 --- a/src/wallet/test/wallet_tests.cpp +++ b/src/wallet/test/wallet_tests.cpp @@ -415,7 +415,7 @@ BOOST_FIXTURE_TEST_CASE(rescan, TestChain100Setup) CKey futureKey; futureKey.MakeNewKey(true); key.pushKV("scriptPubKey", HexStr(GetScriptForRawPubKey(futureKey.GetPubKey()))); - key.pushKV("timestamp", newTip->GetBlockTimeMax() + 7200); + key.pushKV("timestamp", newTip->GetBlockTimeMax() + TIMESTAMP_WINDOW); key.pushKV("internal", UniValue(true)); keys.push_back(key); JSONRPCRequest request; diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 63501b04be..2a9142d5e2 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -1562,7 +1562,7 @@ CBlockIndex* CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool f // no need to read and scan block, if block was created before // our wallet birthday (as adjusted for block time variability) - while (pindex && nTimeFirstKey && (pindex->GetBlockTime() < (nTimeFirstKey - 7200))) + while (pindex && nTimeFirstKey && (pindex->GetBlockTime() < (nTimeFirstKey - TIMESTAMP_WINDOW))) pindex = chainActive.Next(pindex); ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup @@ -3490,7 +3490,7 @@ void CWallet::GetKeyBirthTimes(std::map<CTxDestination, int64_t> &mapKeyBirth) c // Extract block timestamps for those keys for (std::map<CKeyID, CBlockIndex*>::const_iterator it = mapKeyFirstBlock.begin(); it != mapKeyFirstBlock.end(); it++) - mapKeyBirth[it->first] = it->second->GetBlockTime() - 7200; // block times can be 2h off + mapKeyBirth[it->first] = it->second->GetBlockTime() - TIMESTAMP_WINDOW; // block times can be 2h off } bool CWallet::AddDestData(const CTxDestination &dest, const std::string &key, const std::string &value) |