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-rw-r--r--README.md3
-rwxr-xr-xcontrib/devtools/check-doc.py2
-rw-r--r--doc/gitian-building.md5
-rw-r--r--src/chain.cpp32
-rw-r--r--src/chain.h4
-rw-r--r--src/init.cpp18
-rw-r--r--src/main.cpp93
-rw-r--r--src/main.h6
-rw-r--r--src/net.cpp18
-rw-r--r--src/policy/policy.cpp37
-rw-r--r--src/pow.cpp32
-rw-r--r--src/pow.h5
-rw-r--r--src/script/standard.cpp21
-rw-r--r--src/script/standard.h1
-rw-r--r--src/test/script_P2SH_tests.cpp9
-rw-r--r--src/test/transaction_tests.cpp8
16 files changed, 113 insertions, 181 deletions
diff --git a/README.md b/README.md
index 77d30db695..b568978f05 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,8 @@ out collectively by the network. Bitcoin Core is the name of open source
software which enables the use of this currency.
For more information, as well as an immediately useable, binary version of
-the Bitcoin Core software, see https://www.bitcoin.org/en/download.
+the Bitcoin Core software, see https://www.bitcoin.org/en/download, or read the
+[original whitepaper](https://bitcoincore.org/bitcoin.pdf).
License
-------
diff --git a/contrib/devtools/check-doc.py b/contrib/devtools/check-doc.py
index 9c589e6e6d..8c73cf1e8a 100755
--- a/contrib/devtools/check-doc.py
+++ b/contrib/devtools/check-doc.py
@@ -21,7 +21,7 @@ CMD_GREP_DOCS = r"egrep -r -I 'HelpMessageOpt\(\"\-[^\"=]+?(=|\")' %s" % (CMD_RO
REGEX_ARG = re.compile(r'(?:map(?:Multi)?Args(?:\.count\(|\[)|Get(?:Bool)?Arg\()\"(\-[^\"]+?)\"')
REGEX_DOC = re.compile(r'HelpMessageOpt\(\"(\-[^\"=]+?)(?:=|\")')
# list unsupported, deprecated and duplicate args as they need no documentation
-SET_DOC_OPTIONAL = set(['-rpcssl', '-benchmark', '-h', '-help', '-socks', '-tor', '-debugnet'])
+SET_DOC_OPTIONAL = set(['-rpcssl', '-benchmark', '-h', '-help', '-socks', '-tor', '-debugnet', '-whitelistalwaysrelay'])
def main():
used = check_output(CMD_GREP_ARGS, shell=True)
diff --git a/doc/gitian-building.md b/doc/gitian-building.md
index e3fb944388..5ca91505e7 100644
--- a/doc/gitian-building.md
+++ b/doc/gitian-building.md
@@ -74,11 +74,11 @@ In the VirtualBox GUI click "Create" and choose the following parameters in the
- File location and size: at least 40GB; as low as 20GB *may* be possible, but better to err on the safe side
- Click `Create`
-Get the [Debian 8.x net installer](http://cdimage.debian.org/debian-cd/8.2.0/amd64/iso-cd/debian-8.2.0-amd64-netinst.iso) (a more recent minor version should also work, see also [Debian Network installation](https://www.debian.org/CD/netinst/)).
+Get the [Debian 8.x net installer](http://cdimage.debian.org/debian-cd/8.3.0/amd64/iso-cd/debian-8.3.0-amd64-netinst.iso) (a more recent minor version should also work, see also [Debian Network installation](https://www.debian.org/CD/netinst/)).
This DVD image can be validated using a SHA256 hashing tool, for example on
Unixy OSes by entering the following in a terminal:
- echo "d393d17ac6b3113c81186e545c416a00f28ed6e05774284bb5e8f0df39fcbcb9 debian-8.2.0-amd64-netinst.iso" | sha256sum -c
+ echo "dd25bcdde3c6ea5703cc0f313cde621b13d42ff7d252e2538a11663c93bf8654 debian-8.3.0-amd64-netinst.iso" | sha256sum -c
# (must return OK)
After creating the VM, we need to configure it.
@@ -305,6 +305,7 @@ Clone the git repositories for bitcoin and Gitian.
```bash
git clone https://github.com/devrandom/gitian-builder.git
git clone https://github.com/bitcoin/bitcoin
+git clone https://github.com/bitcoin/gitian.sigs.git
```
Setting up the Gitian image
diff --git a/src/chain.cpp b/src/chain.cpp
index 3450ed6c3f..32f6480f84 100644
--- a/src/chain.cpp
+++ b/src/chain.cpp
@@ -110,3 +110,35 @@ void CBlockIndex::BuildSkip()
if (pprev)
pskip = pprev->GetAncestor(GetSkipHeight(nHeight));
}
+
+arith_uint256 GetBlockProof(const CBlockIndex& block)
+{
+ arith_uint256 bnTarget;
+ bool fNegative;
+ bool fOverflow;
+ bnTarget.SetCompact(block.nBits, &fNegative, &fOverflow);
+ if (fNegative || fOverflow || bnTarget == 0)
+ return 0;
+ // We need to compute 2**256 / (bnTarget+1), but we can't represent 2**256
+ // as it's too large for a arith_uint256. However, as 2**256 is at least as large
+ // as bnTarget+1, it is equal to ((2**256 - bnTarget - 1) / (bnTarget+1)) + 1,
+ // or ~bnTarget / (nTarget+1) + 1.
+ return (~bnTarget / (bnTarget + 1)) + 1;
+}
+
+int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params& params)
+{
+ arith_uint256 r;
+ int sign = 1;
+ if (to.nChainWork > from.nChainWork) {
+ r = to.nChainWork - from.nChainWork;
+ } else {
+ r = from.nChainWork - to.nChainWork;
+ sign = -1;
+ }
+ r = r * arith_uint256(params.nPowTargetSpacing) / GetBlockProof(tip);
+ if (r.bits() > 63) {
+ return sign * std::numeric_limits<int64_t>::max();
+ }
+ return sign * r.GetLow64();
+}
diff --git a/src/chain.h b/src/chain.h
index b9b1b9306f..9199983565 100644
--- a/src/chain.h
+++ b/src/chain.h
@@ -282,6 +282,10 @@ public:
const CBlockIndex* GetAncestor(int height) const;
};
+arith_uint256 GetBlockProof(const CBlockIndex& block);
+/** Return the time it would take to redo the work difference between from and to, assuming the current hashrate corresponds to the difficulty at tip, in seconds. */
+int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params&);
+
/** Used to marshal pointers into hashes for db storage. */
class CDiskBlockIndex : public CBlockIndex
{
diff --git a/src/init.cpp b/src/init.cpp
index d72c113133..b4ae380404 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -388,7 +388,8 @@ std::string HelpMessage(HelpMessageMode mode)
strUsage += HelpMessageOpt("-whitebind=<addr>", _("Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6"));
strUsage += HelpMessageOpt("-whitelist=<netmask>", _("Whitelist peers connecting from the given netmask or IP address. Can be specified multiple times.") +
" " + _("Whitelisted peers cannot be DoS banned and their transactions are always relayed, even if they are already in the mempool, useful e.g. for a gateway"));
- strUsage += HelpMessageOpt("-whitelistalwaysrelay", strprintf(_("Always relay transactions received from whitelisted peers (default: %d)"), DEFAULT_WHITELISTALWAYSRELAY));
+ strUsage += HelpMessageOpt("-whitelistrelay", strprintf(_("Accept relayed transactions received from whitelisted peers even when not relaying transactions (default: %d)"), DEFAULT_WHITELISTRELAY));
+ strUsage += HelpMessageOpt("-whitelistforcerelay", strprintf(_("Force relay of transactions from whitelisted peers even they violate local relay policy (default: %d)"), DEFAULT_WHITELISTFORCERELAY));
strUsage += HelpMessageOpt("-maxuploadtarget=<n>", strprintf(_("Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit (default: %d)"), DEFAULT_MAX_UPLOAD_TARGET));
#ifdef ENABLE_WALLET
@@ -750,15 +751,21 @@ void InitParameterInteraction()
LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__);
}
- // disable walletbroadcast and whitelistalwaysrelay in blocksonly mode
+ // disable walletbroadcast and whitelistrelay in blocksonly mode
if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) {
- if (SoftSetBoolArg("-whitelistalwaysrelay", false))
- LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistalwaysrelay=0\n", __func__);
+ if (SoftSetBoolArg("-whitelistrelay", false))
+ LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistrelay=0\n", __func__);
#ifdef ENABLE_WALLET
if (SoftSetBoolArg("-walletbroadcast", false))
LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__);
#endif
}
+
+ // Forcing relay from whitelisted hosts implies we will accept relays from them in the first place.
+ if (GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
+ if (SoftSetBoolArg("-whitelistrelay", true))
+ LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__);
+ }
}
static std::string ResolveErrMsg(const char * const optname, const std::string& strBind)
@@ -895,6 +902,9 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
if (GetBoolArg("-benchmark", false))
InitWarning(_("Unsupported argument -benchmark ignored, use -debug=bench."));
+ if (GetBoolArg("-whitelistalwaysrelay", false))
+ InitWarning(_("Unsupported argument -whitelistalwaysrelay ignored, use -whitelistrelay and/or -whitelistforcerelay."));
+
// Checkmempool and checkblockindex default to true in regtest mode
int ratio = std::min<int>(std::max<int>(GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000);
if (ratio != 0) {
diff --git a/src/main.cpp b/src/main.cpp
index 76ad969c61..4d16b9f9ac 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -816,12 +816,13 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState &state, const C
bool* pfMissingInputs, bool fOverrideMempoolLimit, bool fRejectAbsurdFee,
std::vector<uint256>& vHashTxnToUncache)
{
+ const uint256 hash = tx.GetHash();
AssertLockHeld(cs_main);
if (pfMissingInputs)
*pfMissingInputs = false;
if (!CheckTransaction(tx, state))
- return false;
+ return error("%s: CheckTransaction: %s, %s", __func__, hash.ToString(), FormatStateMessage(state));
// Coinbase is only valid in a block, not as a loose transaction
if (tx.IsCoinBase())
@@ -839,7 +840,6 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState &state, const C
return state.DoS(0, false, REJECT_NONSTANDARD, "non-final");
// is it already in the memory pool?
- uint256 hash = tx.GetHash();
if (pool.exists(hash))
return state.Invalid(false, REJECT_ALREADY_KNOWN, "txn-already-in-mempool");
@@ -1175,7 +1175,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState &state, const C
// Check against previous transactions
// This is done last to help prevent CPU exhaustion denial-of-service attacks.
if (!CheckInputs(tx, state, view, true, STANDARD_SCRIPT_VERIFY_FLAGS, true))
- return false;
+ return error("%s: CheckInputs: %s, %s", __func__, hash.ToString(), FormatStateMessage(state));
// Check again against just the consensus-critical mandatory script
// verification flags, in case of bugs in the standard flags that cause
@@ -1964,7 +1964,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
// Check it again in case a previous version let a bad block in
if (!CheckBlock(block, state, !fJustCheck, !fJustCheck))
- return false;
+ return error("%s: Consensus::CheckBlock: %s", __func__, FormatStateMessage(state));
// verify that the view's current state corresponds to the previous block
uint256 hashPrevBlock = pindex->pprev == NULL ? uint256() : pindex->pprev->GetBlockHash();
@@ -2909,13 +2909,11 @@ bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state, bool f
{
// Check proof of work matches claimed amount
if (fCheckPOW && !CheckProofOfWork(block.GetHash(), block.nBits, Params().GetConsensus()))
- return state.DoS(50, error("CheckBlockHeader(): proof of work failed"),
- REJECT_INVALID, "high-hash");
+ return state.DoS(50, false, REJECT_INVALID, "high-hash", false, "proof of work failed");
// Check timestamp
if (block.GetBlockTime() > GetAdjustedTime() + 2 * 60 * 60)
- return state.Invalid(error("CheckBlockHeader(): block timestamp too far in the future"),
- REJECT_INVALID, "time-too-new");
+ return state.Invalid(false, REJECT_INVALID, "time-too-new", "block timestamp too far in the future");
return true;
}
@@ -2937,15 +2935,13 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo
bool mutated;
uint256 hashMerkleRoot2 = BlockMerkleRoot(block, &mutated);
if (block.hashMerkleRoot != hashMerkleRoot2)
- return state.DoS(100, error("CheckBlock(): hashMerkleRoot mismatch"),
- REJECT_INVALID, "bad-txnmrklroot", true);
+ return state.DoS(100, false, REJECT_INVALID, "bad-txnmrklroot", true, "hashMerkleRoot mismatch");
// Check for merkle tree malleability (CVE-2012-2459): repeating sequences
// of transactions in a block without affecting the merkle root of a block,
// while still invalidating it.
if (mutated)
- return state.DoS(100, error("CheckBlock(): duplicate transaction"),
- REJECT_INVALID, "bad-txns-duplicate", true);
+ return state.DoS(100, false, REJECT_INVALID, "bad-txns-duplicate", true, "duplicate transaction");
}
// All potential-corruption validation must be done before we do any
@@ -2954,24 +2950,20 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo
// Size limits
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"),
- REJECT_INVALID, "bad-blk-length");
+ return state.DoS(100, false, REJECT_INVALID, "bad-blk-length", false, "size limits failed");
// First transaction must be coinbase, the rest must not be
if (block.vtx.empty() || !block.vtx[0].IsCoinBase())
- return state.DoS(100, error("CheckBlock(): first tx is not coinbase"),
- REJECT_INVALID, "bad-cb-missing");
+ return state.DoS(100, false, REJECT_INVALID, "bad-cb-missing", false, "first tx is not coinbase");
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"),
- REJECT_INVALID, "bad-cb-multiple");
+ return state.DoS(100, false, REJECT_INVALID, "bad-cb-multiple", false, "more than one coinbase");
// Check transactions
BOOST_FOREACH(const CTransaction& tx, block.vtx)
if (!CheckTransaction(tx, state))
- return error("CheckBlock(): CheckTransaction of %s failed with %s",
- tx.GetHash().ToString(),
- FormatStateMessage(state));
+ return state.Invalid(false, state.GetRejectCode(), state.GetRejectReason(),
+ strprintf("Transaction check failed (tx hash %s) %s", tx.GetHash().ToString(), state.GetDebugMessage()));
unsigned int nSigOps = 0;
BOOST_FOREACH(const CTransaction& tx, block.vtx)
@@ -2979,8 +2971,7 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo
nSigOps += GetLegacySigOpCount(tx);
}
if (nSigOps > MAX_BLOCK_SIGOPS)
- return state.DoS(100, error("CheckBlock(): out-of-bounds SigOpCount"),
- REJECT_INVALID, "bad-blk-sigops");
+ return state.DoS(100, false, REJECT_INVALID, "bad-blk-sigops", false, "out-of-bounds SigOpCount");
if (fCheckPOW && fCheckMerkleRoot)
block.fChecked = true;
@@ -3007,28 +2998,17 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
const Consensus::Params& consensusParams = Params().GetConsensus();
// Check proof of work
if (block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams))
- return state.DoS(100, error("%s: incorrect proof of work", __func__),
- REJECT_INVALID, "bad-diffbits");
+ return state.DoS(100, false, REJECT_INVALID, "bad-diffbits", false, "incorrect proof of work");
// Check timestamp against prev
if (block.GetBlockTime() <= pindexPrev->GetMedianTimePast())
- return state.Invalid(error("%s: block's timestamp is too early", __func__),
- REJECT_INVALID, "time-too-old");
-
- // 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");
+ return state.Invalid(false, REJECT_INVALID, "time-too-old", "block's timestamp is too early");
- // 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 outdated version blocks when 95% (75% on testnet) of the network has upgraded:
+ for (int32_t version = 2; version < 5; ++version) // check for version 2, 3 and 4 upgrades
+ if (block.nVersion < version && IsSuperMajority(version, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams))
+ return state.Invalid(false, REJECT_OBSOLETE, strprintf("bad-version(v%d)", version - 1),
+ strprintf("rejected nVersion=%d block", version - 1));
return true;
}
@@ -3045,7 +3025,7 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn
? pindexPrev->GetMedianTimePast()
: block.GetBlockTime();
if (!IsFinalTx(tx, nHeight, nLockTimeCutoff)) {
- return state.DoS(10, error("%s: contains a non-final transaction", __func__), REJECT_INVALID, "bad-txns-nonfinal");
+ return state.DoS(10, false, REJECT_INVALID, "bad-txns-nonfinal", false, "non-final transaction");
}
}
@@ -3056,7 +3036,7 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn
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");
+ return state.DoS(100, false, REJECT_INVALID, "bad-cb-height", false, "block height mismatch in coinbase");
}
}
@@ -3083,7 +3063,7 @@ static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state
}
if (!CheckBlockHeader(block, state))
- return false;
+ return error("%s: Consensus::CheckBlockHeader: %s, %s", __func__, hash.ToString(), FormatStateMessage(state));
// Get prev block index
CBlockIndex* pindexPrev = NULL;
@@ -3099,7 +3079,7 @@ static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state
return error("%s: CheckIndexAgainstCheckpoint(): %s", __func__, state.GetRejectReason().c_str());
if (!ContextualCheckBlockHeader(block, state, pindexPrev))
- return false;
+ return error("%s: Consensus::ContextualCheckBlockHeader: %s, %s", __func__, hash.ToString(), FormatStateMessage(state));
}
if (pindex == NULL)
pindex = AddToBlockIndex(block);
@@ -3146,7 +3126,7 @@ static bool AcceptBlock(const CBlock& block, CValidationState& state, const CCha
pindex->nStatus |= BLOCK_FAILED_VALID;
setDirtyBlockIndex.insert(pindex);
}
- return false;
+ return error("%s: %s", __func__, FormatStateMessage(state));
}
int nHeight = pindex->nHeight;
@@ -3197,7 +3177,7 @@ bool ProcessNewBlock(CValidationState& state, const CChainParams& chainparams, c
bool fRequested = MarkBlockAsReceived(pblock->GetHash());
fRequested |= fForceProcessing;
if (!checked) {
- return error("%s: CheckBlock FAILED", __func__);
+ return error("%s: CheckBlock FAILED %s", __func__, FormatStateMessage(state));
}
// Store to disk
@@ -3231,11 +3211,11 @@ bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams,
// NOTE: CheckBlockHeader is called by CheckBlock
if (!ContextualCheckBlockHeader(block, state, pindexPrev))
- return false;
+ return error("%s: Consensus::ContextualCheckBlockHeader: %s", __func__, FormatStateMessage(state));
if (!CheckBlock(block, state, fCheckPOW, fCheckMerkleRoot))
- return false;
+ return error("%s: Consensus::CheckBlock: %s", __func__, FormatStateMessage(state));
if (!ContextualCheckBlock(block, state, pindexPrev))
- return false;
+ return error("%s: Consensus::ContextualCheckBlock: %s", __func__, FormatStateMessage(state));
if (!ConnectBlock(block, state, &indexDummy, viewNew, true))
return false;
assert(state.IsValid());
@@ -3565,7 +3545,8 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CCoinsView *coinsview,
return error("VerifyDB(): *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
// check level 1: verify block validity
if (nCheckLevel >= 1 && !CheckBlock(block, state))
- return error("VerifyDB(): *** found bad block at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
+ return error("%s: *** found bad block at %d, hash=%s (%s)\n", __func__,
+ pindex->nHeight, pindex->GetBlockHash().ToString(), FormatStateMessage(state));
// check level 2: verify undo validity
if (nCheckLevel >= 2 && pindex) {
CBlockUndo undo;
@@ -4493,8 +4474,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
bool fBlocksOnly = GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY);
- // Allow whitelisted peers to send data other than blocks in blocks only mode if whitelistalwaysrelay is true
- if (pfrom->fWhitelisted && GetBoolArg("-whitelistalwaysrelay", DEFAULT_WHITELISTALWAYSRELAY))
+ // Allow whitelisted peers to send data other than blocks in blocks only mode if whitelistrelay is true
+ if (pfrom->fWhitelisted && GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY))
fBlocksOnly = false;
LOCK(cs_main);
@@ -4673,8 +4654,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
else if (strCommand == NetMsgType::TX)
{
// Stop processing the transaction early if
- // We are in blocks only mode and peer is either not whitelisted or whitelistalwaysrelay is off
- if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY) && (!pfrom->fWhitelisted || !GetBoolArg("-whitelistalwaysrelay", DEFAULT_WHITELISTALWAYSRELAY)))
+ // We are in blocks only mode and peer is either not whitelisted or whitelistrelay is off
+ if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY) && (!pfrom->fWhitelisted || !GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY)))
{
LogPrint("net", "transaction sent in violation of protocol peer=%d\n", pfrom->id);
return true;
@@ -4774,7 +4755,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
assert(recentRejects);
recentRejects->insert(tx.GetHash());
- if (pfrom->fWhitelisted && GetBoolArg("-whitelistalwaysrelay", DEFAULT_WHITELISTALWAYSRELAY)) {
+ if (pfrom->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
// Always relay transactions received from whitelisted peers, even
// if they were already in the mempool or rejected from it due
// to policy, allowing the node to function as a gateway for
diff --git a/src/main.h b/src/main.h
index fccc14b9ec..793737422e 100644
--- a/src/main.h
+++ b/src/main.h
@@ -42,8 +42,10 @@ struct CNodeStateStats;
/** Default for accepting alerts from the P2P network. */
static const bool DEFAULT_ALERTS = true;
-/** Default for DEFAULT_WHITELISTALWAYSRELAY. */
-static const bool DEFAULT_WHITELISTALWAYSRELAY = true;
+/** Default for DEFAULT_WHITELISTRELAY. */
+static const bool DEFAULT_WHITELISTRELAY = true;
+/** Default for DEFAULT_WHITELISTFORCERELAY. */
+static const bool DEFAULT_WHITELISTFORCERELAY = true;
/** Default for -minrelaytxfee, minimum relay fee for transactions */
static const unsigned int DEFAULT_MIN_RELAY_TX_FEE = 1000;
//! -maxtxfee default
diff --git a/src/net.cpp b/src/net.cpp
index 48e9e10157..14e22f6cb3 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -899,8 +899,6 @@ static bool AttemptToEvictConnection(bool fPreferNewConnection) {
continue;
if (node->fDisconnect)
continue;
- if (node->addr.IsLocal())
- continue;
vEvictionCandidates.push_back(CNodeRef(node));
}
}
@@ -931,15 +929,20 @@ static bool AttemptToEvictConnection(bool fPreferNewConnection) {
if (vEvictionCandidates.empty()) return false;
- // Identify the network group with the most connections
+ // Identify the network group with the most connections and youngest member.
+ // (vEvictionCandidates is already sorted by reverse connect time)
std::vector<unsigned char> naMostConnections;
unsigned int nMostConnections = 0;
+ int64_t nMostConnectionsTime = 0;
std::map<std::vector<unsigned char>, std::vector<CNodeRef> > mapAddrCounts;
BOOST_FOREACH(const CNodeRef &node, vEvictionCandidates) {
mapAddrCounts[node->addr.GetGroup()].push_back(node);
+ int64_t grouptime = mapAddrCounts[node->addr.GetGroup()][0]->nTimeConnected;
+ size_t groupsize = mapAddrCounts[node->addr.GetGroup()].size();
- if (mapAddrCounts[node->addr.GetGroup()].size() > nMostConnections) {
- nMostConnections = mapAddrCounts[node->addr.GetGroup()].size();
+ if (groupsize > nMostConnections || (groupsize == nMostConnections && grouptime > nMostConnectionsTime)) {
+ nMostConnections = groupsize;
+ nMostConnectionsTime = grouptime;
naMostConnections = node->addr.GetGroup();
}
}
@@ -947,14 +950,13 @@ static bool AttemptToEvictConnection(bool fPreferNewConnection) {
// Reduce to the network group with the most connections
vEvictionCandidates = mapAddrCounts[naMostConnections];
- // Do not disconnect peers if there is only 1 connection from their network group
+ // Do not disconnect peers if there is only one unprotected connection from their network group.
if (vEvictionCandidates.size() <= 1)
// unless we prefer the new connection (for whitelisted peers)
if (!fPreferNewConnection)
return false;
- // Disconnect the most recent connection from the network group with the most connections
- std::sort(vEvictionCandidates.begin(), vEvictionCandidates.end(), ReverseCompareNodeTimeConnected);
+ // Disconnect from the network group with the most connections
vEvictionCandidates[0]->fDisconnect = true;
return true;
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp
index 019df72279..332abc430e 100644
--- a/src/policy/policy.cpp
+++ b/src/policy/policy.cpp
@@ -132,45 +132,20 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
const CScript& prevScript = prev.scriptPubKey;
if (!Solver(prevScript, whichType, vSolutions))
return false;
- int nArgsExpected = ScriptSigArgsExpected(whichType, vSolutions);
- if (nArgsExpected < 0)
- return false;
-
- // Transactions with extra stuff in their scriptSigs are
- // non-standard. Note that this EvalScript() call will
- // be quick, because if there are any operations
- // beside "push data" in the scriptSig
- // IsStandardTx() will have already returned false
- // and this method isn't called.
- std::vector<std::vector<unsigned char> > stack;
- if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker()))
- return false;
if (whichType == TX_SCRIPTHASH)
{
+ std::vector<std::vector<unsigned char> > stack;
+ // convert the scriptSig into a stack, so we can inspect the redeemScript
+ if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), 0))
+ return false;
if (stack.empty())
return false;
CScript subscript(stack.back().begin(), stack.back().end());
- std::vector<std::vector<unsigned char> > vSolutions2;
- txnouttype whichType2;
- if (Solver(subscript, whichType2, vSolutions2))
- {
- int tmpExpected = ScriptSigArgsExpected(whichType2, vSolutions2);
- if (tmpExpected < 0)
- return false;
- nArgsExpected += tmpExpected;
- }
- else
- {
- // Any other Script with less than 15 sigops OK:
- unsigned int sigops = subscript.GetSigOpCount(true);
- // ... extra data left on the stack after execution is OK, too:
- return (sigops <= MAX_P2SH_SIGOPS);
+ if (subscript.GetSigOpCount(true) > MAX_P2SH_SIGOPS) {
+ return false;
}
}
-
- if (stack.size() != (unsigned int)nArgsExpected)
- return false;
}
return true;
diff --git a/src/pow.cpp b/src/pow.cpp
index 7392defe64..40c72f9d79 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -102,35 +102,3 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&
return true;
}
-
-arith_uint256 GetBlockProof(const CBlockIndex& block)
-{
- arith_uint256 bnTarget;
- bool fNegative;
- bool fOverflow;
- bnTarget.SetCompact(block.nBits, &fNegative, &fOverflow);
- if (fNegative || fOverflow || bnTarget == 0)
- return 0;
- // We need to compute 2**256 / (bnTarget+1), but we can't represent 2**256
- // as it's too large for a arith_uint256. However, as 2**256 is at least as large
- // as bnTarget+1, it is equal to ((2**256 - bnTarget - 1) / (bnTarget+1)) + 1,
- // or ~bnTarget / (nTarget+1) + 1.
- return (~bnTarget / (bnTarget + 1)) + 1;
-}
-
-int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params& params)
-{
- arith_uint256 r;
- int sign = 1;
- if (to.nChainWork > from.nChainWork) {
- r = to.nChainWork - from.nChainWork;
- } else {
- r = from.nChainWork - to.nChainWork;
- sign = -1;
- }
- r = r * arith_uint256(params.nPowTargetSpacing) / GetBlockProof(tip);
- if (r.bits() > 63) {
- return sign * std::numeric_limits<int64_t>::max();
- }
- return sign * r.GetLow64();
-}
diff --git a/src/pow.h b/src/pow.h
index 4399440929..23e9c1c351 100644
--- a/src/pow.h
+++ b/src/pow.h
@@ -13,16 +13,11 @@
class CBlockHeader;
class CBlockIndex;
class uint256;
-class arith_uint256;
unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params&);
unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nFirstBlockTime, const Consensus::Params&);
/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
bool CheckProofOfWork(uint256 hash, unsigned int nBits, const Consensus::Params&);
-arith_uint256 GetBlockProof(const CBlockIndex& block);
-
-/** Return the time it would take to redo the work difference between from and to, assuming the current hashrate corresponds to the difficulty at tip, in seconds. */
-int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params&);
#endif // BITCOIN_POW_H
diff --git a/src/script/standard.cpp b/src/script/standard.cpp
index 30935768ac..67b6af327a 100644
--- a/src/script/standard.cpp
+++ b/src/script/standard.cpp
@@ -161,27 +161,6 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsi
return false;
}
-int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned char> >& vSolutions)
-{
- switch (t)
- {
- case TX_NONSTANDARD:
- case TX_NULL_DATA:
- return -1;
- case TX_PUBKEY:
- return 1;
- case TX_PUBKEYHASH:
- return 2;
- case TX_MULTISIG:
- if (vSolutions.size() < 1 || vSolutions[0].size() < 1)
- return -1;
- return vSolutions[0][0] + 1;
- case TX_SCRIPTHASH:
- return 1; // doesn't include args needed by the script
- }
- return -1;
-}
-
bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet)
{
vector<valtype> vSolutions;
diff --git a/src/script/standard.h b/src/script/standard.h
index 6bac6e4097..64bf010ec1 100644
--- a/src/script/standard.h
+++ b/src/script/standard.h
@@ -71,7 +71,6 @@ typedef boost::variant<CNoDestination, CKeyID, CScriptID> CTxDestination;
const char* GetTxnOutputType(txnouttype t);
bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet);
-int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned char> >& vSolutions);
bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet);
bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<CTxDestination>& addressRet, int& nRequiredRet);
diff --git a/src/test/script_P2SH_tests.cpp b/src/test/script_P2SH_tests.cpp
index 7bd4b8441b..28b85e8d29 100644
--- a/src/test/script_P2SH_tests.cpp
+++ b/src/test/script_P2SH_tests.cpp
@@ -346,15 +346,6 @@ BOOST_AUTO_TEST_CASE(AreInputsStandard)
// 22 P2SH sigops for all inputs (1 for vin[0], 6 for vin[3], 15 for vin[4]
BOOST_CHECK_EQUAL(GetP2SHSigOpCount(txTo, coins), 22U);
- // Make sure adding crap to the scriptSigs makes them non-standard:
- for (int i = 0; i < 3; i++)
- {
- CScript t = txTo.vin[i].scriptSig;
- txTo.vin[i].scriptSig = (CScript() << 11) + t;
- BOOST_CHECK(!::AreInputsStandard(txTo, coins));
- txTo.vin[i].scriptSig = t;
- }
-
CMutableTransaction txToNonStd1;
txToNonStd1.vout.resize(1);
txToNonStd1.vout[0].scriptPubKey = GetScriptForDestination(key[1].GetPubKey().GetID());
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp
index 3dca7ea0f7..c27f194b55 100644
--- a/src/test/transaction_tests.cpp
+++ b/src/test/transaction_tests.cpp
@@ -310,14 +310,6 @@ BOOST_AUTO_TEST_CASE(test_Get)
BOOST_CHECK(AreInputsStandard(t1, coins));
BOOST_CHECK_EQUAL(coins.GetValueIn(t1), (50+21+22)*CENT);
-
- // Adding extra junk to the scriptSig should make it non-standard:
- t1.vin[0].scriptSig << OP_11;
- BOOST_CHECK(!AreInputsStandard(t1, coins));
-
- // ... as should not having enough:
- t1.vin[0].scriptSig = CScript();
- BOOST_CHECK(!AreInputsStandard(t1, coins));
}
BOOST_AUTO_TEST_CASE(test_IsStandard)
generated by cgit v1.2.3 (git 2.26.2) at 2024-10-30 09:32:09 +0000