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authorWladimir J. van der Laan <laanwj@gmail.com>2016-08-04 11:55:25 +0200
committerWladimir J. van der Laan <laanwj@gmail.com>2016-08-04 12:20:35 +0200
commit37d83bb0a980996338d9bc9dbdbf0175eeaba9a2 (patch)
tree597d0a22c003d9e8dac39ead346b98e3ad2bcf91
parent5c7a5e1f66d8611d84d66c7e0295bd41c71f85bf (diff)
parent122786d0e0170c73536360b705af711e1338adbf (diff)
Merge #8391: Consensus: Remove ISM
122786d Consensus: Remove ISM (NicolasDorier)
-rwxr-xr-xqa/rpc-tests/bip65-cltv-p2p.py40
-rwxr-xr-xqa/rpc-tests/bip65-cltv.py3
-rwxr-xr-xqa/rpc-tests/bipdersig-p2p.py42
-rw-r--r--src/chainparams.cpp17
-rw-r--r--src/consensus/params.h8
-rw-r--r--src/main.cpp44
-rw-r--r--src/rpc/blockchain.cpp36
7 files changed, 83 insertions, 107 deletions
diff --git a/qa/rpc-tests/bip65-cltv-p2p.py b/qa/rpc-tests/bip65-cltv-p2p.py
index 754b6873b7..e903b2fbf0 100755
--- a/qa/rpc-tests/bip65-cltv-p2p.py
+++ b/qa/rpc-tests/bip65-cltv-p2p.py
@@ -71,9 +71,9 @@ class BIP65Test(ComparisonTestFramework):
self.nodeaddress = self.nodes[0].getnewaddress()
self.last_block_time = int(time.time())
- ''' 98 more version 3 blocks '''
+ ''' 398 more version 3 blocks '''
test_blocks = []
- for i in range(98):
+ for i in range(398):
block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
block.nVersion = 3
block.rehash()
@@ -118,24 +118,6 @@ class BIP65Test(ComparisonTestFramework):
height += 1
yield TestInstance([[block, True]])
- '''
- Check that the new CLTV rules are enforced in the 751st version 4
- block.
- '''
- spendtx = self.create_transaction(self.nodes[0],
- self.coinbase_blocks[1], self.nodeaddress, 1.0)
- cltv_invalidate(spendtx)
- spendtx.rehash()
-
- block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
- block.nVersion = 4
- block.vtx.append(spendtx)
- block.hashMerkleRoot = block.calc_merkle_root()
- block.rehash()
- block.solve()
- self.last_block_time += 1
- yield TestInstance([[block, False]])
-
''' Mine 199 new version blocks on last valid tip '''
test_blocks = []
for i in range(199):
@@ -169,6 +151,24 @@ class BIP65Test(ComparisonTestFramework):
height += 1
yield TestInstance([[block, True]])
+ '''
+ Check that the new CLTV rules are enforced in the 951st version 4
+ block.
+ '''
+ spendtx = self.create_transaction(self.nodes[0],
+ self.coinbase_blocks[1], self.nodeaddress, 1.0)
+ cltv_invalidate(spendtx)
+ spendtx.rehash()
+
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 4
+ block.vtx.append(spendtx)
+ block.hashMerkleRoot = block.calc_merkle_root()
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ yield TestInstance([[block, False]])
+
''' Mine 1 old version block, should be invalid '''
block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
block.nVersion = 3
diff --git a/qa/rpc-tests/bip65-cltv.py b/qa/rpc-tests/bip65-cltv.py
index abba7fc20e..baa77b92a0 100755
--- a/qa/rpc-tests/bip65-cltv.py
+++ b/qa/rpc-tests/bip65-cltv.py
@@ -30,7 +30,8 @@ class BIP65Test(BitcoinTestFramework):
cnt = self.nodes[0].getblockcount()
# Mine some old-version blocks
- self.nodes[1].generate(100)
+ self.nodes[1].generate(200)
+ cnt += 100
self.sync_all()
if (self.nodes[0].getblockcount() != cnt + 100):
raise AssertionError("Failed to mine 100 version=3 blocks")
diff --git a/qa/rpc-tests/bipdersig-p2p.py b/qa/rpc-tests/bipdersig-p2p.py
index 4e4936a4ae..3bad5af5e6 100755
--- a/qa/rpc-tests/bipdersig-p2p.py
+++ b/qa/rpc-tests/bipdersig-p2p.py
@@ -79,9 +79,9 @@ class BIP66Test(ComparisonTestFramework):
self.nodeaddress = self.nodes[0].getnewaddress()
self.last_block_time = int(time.time())
- ''' 98 more version 2 blocks '''
+ ''' 298 more version 2 blocks '''
test_blocks = []
- for i in range(98):
+ for i in range(298):
block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
block.nVersion = 2
block.rehash()
@@ -124,25 +124,7 @@ class BIP66Test(ComparisonTestFramework):
self.last_block_time += 1
self.tip = block.sha256
height += 1
- yield TestInstance([[block, True]])
-
- '''
- Check that the new DERSIG rules are enforced in the 751st version 3
- block.
- '''
- spendtx = self.create_transaction(self.nodes[0],
- self.coinbase_blocks[1], self.nodeaddress, 1.0)
- unDERify(spendtx)
- spendtx.rehash()
-
- block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
- block.nVersion = 3
- block.vtx.append(spendtx)
- block.hashMerkleRoot = block.calc_merkle_root()
- block.rehash()
- block.solve()
- self.last_block_time += 1
- yield TestInstance([[block, False]])
+ yield TestInstance([[block, True]])
''' Mine 199 new version blocks on last valid tip '''
test_blocks = []
@@ -177,6 +159,24 @@ class BIP66Test(ComparisonTestFramework):
height += 1
yield TestInstance([[block, True]])
+ '''
+ Check that the new DERSIG rules are enforced in the 951st version 3
+ block.
+ '''
+ spendtx = self.create_transaction(self.nodes[0],
+ self.coinbase_blocks[1], self.nodeaddress, 1.0)
+ unDERify(spendtx)
+ spendtx.rehash()
+
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 3
+ block.vtx.append(spendtx)
+ block.hashMerkleRoot = block.calc_merkle_root()
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ yield TestInstance([[block, False]])
+
''' Mine 1 old version block, should be invalid '''
block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
block.nVersion = 2
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index d6032440e3..ea6e3aada2 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -71,11 +71,10 @@ public:
CMainParams() {
strNetworkID = "main";
consensus.nSubsidyHalvingInterval = 210000;
- consensus.nMajorityEnforceBlockUpgrade = 750;
- consensus.nMajorityRejectBlockOutdated = 950;
- consensus.nMajorityWindow = 1000;
consensus.BIP34Height = 227931;
consensus.BIP34Hash = uint256S("0x000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8");
+ consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
+ consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
@@ -167,11 +166,10 @@ public:
CTestNetParams() {
strNetworkID = "test";
consensus.nSubsidyHalvingInterval = 210000;
- consensus.nMajorityEnforceBlockUpgrade = 51;
- consensus.nMajorityRejectBlockOutdated = 75;
- consensus.nMajorityWindow = 100;
consensus.BIP34Height = 21111;
consensus.BIP34Hash = uint256S("0x0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8");
+ consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
+ consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
@@ -247,11 +245,10 @@ public:
CRegTestParams() {
strNetworkID = "regtest";
consensus.nSubsidyHalvingInterval = 150;
- consensus.nMajorityEnforceBlockUpgrade = 750;
- consensus.nMajorityRejectBlockOutdated = 950;
- consensus.nMajorityWindow = 1000;
- consensus.BIP34Height = -1; // BIP34 has not necessarily activated on regtest
+ consensus.BIP34Height = 100000000; // BIP34 has not activated on regtest (far in the future so block v1 are not rejected in tests)
consensus.BIP34Hash = uint256();
+ consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in rpc activation tests)
+ consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in rpc activation tests)
consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
diff --git a/src/consensus/params.h b/src/consensus/params.h
index 822ec87d69..5b2f49184f 100644
--- a/src/consensus/params.h
+++ b/src/consensus/params.h
@@ -39,13 +39,13 @@ struct BIP9Deployment {
struct Params {
uint256 hashGenesisBlock;
int nSubsidyHalvingInterval;
- /** Used to check majorities for block version upgrade */
- int nMajorityEnforceBlockUpgrade;
- int nMajorityRejectBlockOutdated;
- int nMajorityWindow;
/** Block height and hash at which BIP34 becomes active */
int BIP34Height;
uint256 BIP34Hash;
+ /** Block height at which BIP65 becomes active */
+ int BIP65Height;
+ /** Block height at which BIP66 becomes active */
+ int BIP66Height;
/**
* Minimum blocks including miner confirmation of the total of 2016 blocks in a retargetting period,
* (nPowTargetTimespan / nPowTargetSpacing) which is also used for BIP9 deployments.
diff --git a/src/main.cpp b/src/main.cpp
index 46118fff81..2a8772a97d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -106,11 +106,6 @@ map<uint256, COrphanTx> mapOrphanTransactions GUARDED_BY(cs_main);
map<COutPoint, set<map<uint256, COrphanTx>::iterator, IteratorComparator>> mapOrphanTransactionsByPrev GUARDED_BY(cs_main);
void EraseOrphansFor(NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
-/**
- * Returns true if there are nRequired or more blocks of minVersion or above
- * in the last Consensus::Params::nMajorityWindow blocks, starting at pstart and going backwards.
- */
-static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned nRequired, const Consensus::Params& consensusParams);
static void CheckBlockIndex(const Consensus::Params& consensusParams);
/** Constant stuff for coinbase transactions we create: */
@@ -2372,15 +2367,13 @@ 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:
- if (block.nVersion >= 3 && IsSuperMajority(3, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) {
+ // Start enforcing the DERSIG (BIP66) rule
+ if (pindex->nHeight >= chainparams.GetConsensus().BIP66Height) {
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())) {
+ // Start enforcing CHECKLOCKTIMEVERIFY (BIP65) rule
+ if (pindex->nHeight >= chainparams.GetConsensus().BIP65Height) {
flags |= SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY;
}
@@ -3504,6 +3497,7 @@ std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBloc
bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev, int64_t nAdjustedTime)
{
+ const int nHeight = pindexPrev == NULL ? 0 : pindexPrev->nHeight + 1;
// Check proof of work
if (block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams))
return state.DoS(100, false, REJECT_INVALID, "bad-diffbits", false, "incorrect proof of work");
@@ -3517,10 +3511,12 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
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:
- 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(0x%08x)", version - 1),
- strprintf("rejected nVersion=0x%08x block", version - 1));
+ // check for version 2, 3 and 4 upgrades
+ if((block.nVersion < 2 && nHeight >= consensusParams.BIP34Height) ||
+ (block.nVersion < 3 && nHeight >= consensusParams.BIP66Height) ||
+ (block.nVersion < 4 && nHeight >= consensusParams.BIP65Height))
+ return state.Invalid(false, REJECT_OBSOLETE, strprintf("bad-version(0x%08x)", block.nVersion),
+ strprintf("rejected nVersion=0x%08x block", block.nVersion));
return true;
}
@@ -3546,9 +3542,8 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, const Co
}
}
- // Enforce block.nVersion=2 rule that the coinbase starts with serialized block height
- // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet):
- if (block.nVersion >= 2 && IsSuperMajority(2, pindexPrev, consensusParams.nMajorityEnforceBlockUpgrade, consensusParams))
+ // Enforce rule that the coinbase starts with serialized block height
+ if (nHeight >= consensusParams.BIP34Height)
{
CScript expect = CScript() << nHeight;
if (block.vtx[0].vin[0].scriptSig.size() < expect.size() ||
@@ -3722,19 +3717,6 @@ static bool AcceptBlock(const CBlock& block, CValidationState& state, const CCha
return true;
}
-static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned nRequired, const Consensus::Params& consensusParams)
-{
- unsigned int nFound = 0;
- for (int i = 0; i < consensusParams.nMajorityWindow && nFound < nRequired && pstart != NULL; i++)
- {
- if (pstart->nVersion >= minVersion)
- ++nFound;
- pstart = pstart->pprev;
- }
- return (nFound >= nRequired);
-}
-
-
bool ProcessNewBlock(CValidationState& state, const CChainParams& chainparams, CNode* pfrom, const CBlock* pblock, bool fForceProcessing, const CDiskBlockPos* dbp)
{
{
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 9dc896b7af..e3c32d905a 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -817,22 +817,23 @@ UniValue verifychain(const UniValue& params, bool fHelp)
}
/** Implementation of IsSuperMajority with better feedback */
-static UniValue SoftForkMajorityDesc(int minVersion, CBlockIndex* pindex, int nRequired, const Consensus::Params& consensusParams)
+static UniValue SoftForkMajorityDesc(int version, CBlockIndex* pindex, const Consensus::Params& consensusParams)
{
- int nFound = 0;
- CBlockIndex* pstart = pindex;
- for (int i = 0; i < consensusParams.nMajorityWindow && pstart != NULL; i++)
+ UniValue rv(UniValue::VOBJ);
+ bool activated = false;
+ switch(version)
{
- if (pstart->nVersion >= minVersion)
- ++nFound;
- pstart = pstart->pprev;
+ case 2:
+ activated = pindex->nHeight >= consensusParams.BIP34Height;
+ break;
+ case 3:
+ activated = pindex->nHeight >= consensusParams.BIP66Height;
+ break;
+ case 4:
+ activated = pindex->nHeight >= consensusParams.BIP65Height;
+ break;
}
-
- UniValue rv(UniValue::VOBJ);
- rv.push_back(Pair("status", nFound >= nRequired));
- rv.push_back(Pair("found", nFound));
- rv.push_back(Pair("required", nRequired));
- rv.push_back(Pair("window", consensusParams.nMajorityWindow));
+ rv.push_back(Pair("status", activated));
return rv;
}
@@ -841,8 +842,7 @@ static UniValue SoftForkDesc(const std::string &name, int version, CBlockIndex*
UniValue rv(UniValue::VOBJ);
rv.push_back(Pair("id", name));
rv.push_back(Pair("version", version));
- rv.push_back(Pair("enforce", SoftForkMajorityDesc(version, pindex, consensusParams.nMajorityEnforceBlockUpgrade, consensusParams)));
- rv.push_back(Pair("reject", SoftForkMajorityDesc(version, pindex, consensusParams.nMajorityRejectBlockOutdated, consensusParams)));
+ rv.push_back(Pair("reject", SoftForkMajorityDesc(version, pindex, consensusParams)));
return rv;
}
@@ -897,13 +897,9 @@ UniValue getblockchaininfo(const UniValue& params, bool fHelp)
" {\n"
" \"id\": \"xxxx\", (string) name of softfork\n"
" \"version\": xx, (numeric) block version\n"
- " \"enforce\": { (object) progress toward enforcing the softfork rules for new-version blocks\n"
+ " \"reject\": { (object) progress toward rejecting pre-softfork blocks\n"
" \"status\": xx, (boolean) true if threshold reached\n"
- " \"found\": xx, (numeric) number of blocks with the new version found\n"
- " \"required\": xx, (numeric) number of blocks required to trigger\n"
- " \"window\": xx, (numeric) maximum size of examined window of recent blocks\n"
" },\n"
- " \"reject\": { ... } (object) progress toward rejecting pre-softfork blocks (same fields as \"enforce\")\n"
" }, ...\n"
" ],\n"
" \"bip9_softforks\": { (object) status of BIP9 softforks in progress\n"