From 0328dcdcfcb56dc8918697716d7686be048ad0b3 Mon Sep 17 00:00:00 2001 From: John Newbery Date: Mon, 20 May 2019 14:59:07 -0400 Subject: [PATCH] [Consensus] Bury segwit deployment Hardcode segwit deployment height to 481824 for mainnet. --- src/chainparams.cpp | 33 ++++++----- src/chainparamsbase.cpp | 1 + src/consensus/params.h | 5 +- src/init.cpp | 9 +-- src/rpc/blockchain.cpp | 2 +- src/rpc/mining.cpp | 5 +- src/test/setup_common.cpp | 2 +- src/validation.cpp | 19 +++--- src/validation.h | 6 +- src/versionbitsinfo.cpp | 4 -- test/functional/feature_nulldummy.py | 2 +- test/functional/feature_segwit.py | 6 +- test/functional/p2p_compactblocks.py | 4 +- test/functional/p2p_segwit.py | 82 +++++++++----------------- test/functional/test_framework/util.py | 4 -- 15 files changed, 71 insertions(+), 113 deletions(-) diff --git a/src/chainparams.cpp b/src/chainparams.cpp index 59c105817..ad766471d 100644 --- a/src/chainparams.cpp +++ b/src/chainparams.cpp @@ -70,6 +70,7 @@ public: consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0 consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931 consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5 + consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893 consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks consensus.nPowTargetSpacing = 10 * 60; @@ -81,11 +82,6 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008 - // Deployment of SegWit (BIP141, BIP143, and BIP147) - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1479168000; // November 15th, 2016. - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1510704000; // November 15th, 2017. - // The best chain should have at least this much work. consensus.nMinimumChainWork = uint256S("0x0000000000000000000000000000000000000000051dc8b82f450202ecb3d471"); @@ -180,6 +176,7 @@ public: consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6 consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182 consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb + consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks consensus.nPowTargetSpacing = 10 * 60; @@ -191,11 +188,6 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008 - // Deployment of SegWit (BIP141, BIP143, and BIP147) - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1462060800; // May 1st 2016 - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1493596800; // May 1st 2017 - // The best chain should have at least this much work. consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000007dbe94253893cbd463"); @@ -268,6 +260,7 @@ public: consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in functional tests) consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in functional tests) consensus.CSVHeight = 432; // CSV activated on regtest (Used in rpc activation tests) + consensus.SegwitHeight = 0; // SEGWIT is always activated on regtest unless overridden consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks consensus.nPowTargetSpacing = 10 * 60; @@ -278,9 +271,6 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0; consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE; - consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; // The best chain should have at least this much work. consensus.nMinimumChainWork = uint256S("0x00"); @@ -297,7 +287,7 @@ public: m_assumed_blockchain_size = 0; m_assumed_chain_state_size = 0; - UpdateVersionBitsParametersFromArgs(args); + UpdateActivationParametersFromArgs(args); genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN); consensus.hashGenesisBlock = genesis.GetHash(); @@ -340,11 +330,22 @@ public: consensus.vDeployments[d].nStartTime = nStartTime; consensus.vDeployments[d].nTimeout = nTimeout; } - void UpdateVersionBitsParametersFromArgs(const ArgsManager& args); + void UpdateActivationParametersFromArgs(const ArgsManager& args); }; -void CRegTestParams::UpdateVersionBitsParametersFromArgs(const ArgsManager& args) +void CRegTestParams::UpdateActivationParametersFromArgs(const ArgsManager& args) { + if (gArgs.IsArgSet("-segwitheight")) { + int64_t height = gArgs.GetArg("-segwitheight", consensus.SegwitHeight); + if (height < -1 || height >= std::numeric_limits::max()) { + throw std::runtime_error(strprintf("Activation height %ld for segwit is out of valid range. Use -1 to disable segwit.", height)); + } else if (height == -1) { + LogPrintf("Segwit disabled for testing\n"); + height = std::numeric_limits::max(); + } + consensus.SegwitHeight = static_cast(height); + } + if (!args.IsArgSet("-vbparams")) return; for (const std::string& strDeployment : args.GetArgs("-vbparams")) { diff --git a/src/chainparamsbase.cpp b/src/chainparamsbase.cpp index deb8e0fb5..9b98dff3c 100644 --- a/src/chainparamsbase.cpp +++ b/src/chainparamsbase.cpp @@ -19,6 +19,7 @@ void SetupChainParamsBaseOptions() { gArgs.AddArg("-regtest", "Enter regression test mode, which uses a special chain in which blocks can be solved instantly. " "This is intended for regression testing tools and app development.", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CHAINPARAMS); + gArgs.AddArg("-segwitheight=", "Set the activation height of segwit. -1 to disable. (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST); gArgs.AddArg("-testnet", "Use the test chain", ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS); gArgs.AddArg("-vbparams=deployment:start:end", "Use given start/end times for specified version bits deployment (regtest-only)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::CHAINPARAMS); } diff --git a/src/consensus/params.h b/src/consensus/params.h index 69881ffdf..8263b0fef 100644 --- a/src/consensus/params.h +++ b/src/consensus/params.h @@ -16,7 +16,6 @@ namespace Consensus { enum DeploymentPos { DEPLOYMENT_TESTDUMMY, - DEPLOYMENT_SEGWIT, // Deployment of BIP141, BIP143, and BIP147. // NOTE: Also add new deployments to VersionBitsDeploymentInfo in versionbits.cpp MAX_VERSION_BITS_DEPLOYMENTS }; @@ -59,6 +58,10 @@ struct Params { int BIP66Height; /** Block height at which CSV (BIP68, BIP112 and BIP113) becomes active */ int CSVHeight; + /** Block height at which Segwit (BIP141, BIP143 and BIP147) becomes active. + * Note that segwit v0 script rules are enforced on all blocks except the + * BIP 16 exception blocks. */ + int SegwitHeight; /** * Minimum blocks including miner confirmation of the total of 2016 blocks in a retargeting period, * (nPowTargetTimespan / nPowTargetSpacing) which is also used for BIP9 deployments. diff --git a/src/init.cpp b/src/init.cpp index bb3ff8d88..ab48dd420 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -1670,12 +1670,9 @@ bool AppInitMain(InitInterfaces& interfaces) } } - if (chainparams.GetConsensus().vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0) { - // Only advertise witness capabilities if they have a reasonable start time. - // This allows us to have the code merged without a defined softfork, by setting its - // end time to 0. - // Note that setting NODE_WITNESS is never required: the only downside from not - // doing so is that after activation, no upgraded nodes will fetch from you. + if (chainparams.GetConsensus().SegwitHeight != std::numeric_limits::max()) { + // Advertise witness capabilities. + // The option to not set NODE_WITNESS is only used in the tests and should be removed. nLocalServices = ServiceFlags(nLocalServices | NODE_WITNESS); } diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 808324afe..cd98b6c1b 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -1338,7 +1338,7 @@ UniValue getblockchaininfo(const JSONRPCRequest& request) BuriedForkDescPushBack(softforks, "bip66", consensusParams.BIP66Height); BuriedForkDescPushBack(softforks, "bip65", consensusParams.BIP65Height); BuriedForkDescPushBack(softforks, "csv", consensusParams.CSVHeight); - BIP9SoftForkDescPushBack(softforks, "segwit", consensusParams, Consensus::DEPLOYMENT_SEGWIT); + BuriedForkDescPushBack(softforks, "segwit", consensusParams.SegwitHeight); BIP9SoftForkDescPushBack(softforks, "testdummy", consensusParams, Consensus::DEPLOYMENT_TESTDUMMY); obj.pushKV("softforks", softforks); diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp index 48bc88823..13bf611d3 100644 --- a/src/rpc/mining.cpp +++ b/src/rpc/mining.cpp @@ -482,9 +482,8 @@ static UniValue getblocktemplate(const JSONRPCRequest& request) // TODO: Maybe recheck connections/IBD and (if something wrong) send an expires-immediately template to stop miners? } - const struct VBDeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT]; // GBT must be called with 'segwit' set in the rules - if (setClientRules.count(segwit_info.name) != 1) { + if (setClientRules.count("segwit") != 1) { throw JSONRPCError(RPC_INVALID_PARAMETER, "getblocktemplate must be called with the segwit rule set (call with {\"rules\": [\"segwit\"]})"); } @@ -521,7 +520,7 @@ static UniValue getblocktemplate(const JSONRPCRequest& request) pblock->nNonce = 0; // NOTE: If at some point we support pre-segwit miners post-segwit-activation, this needs to take segwit support into consideration - const bool fPreSegWit = (ThresholdState::ACTIVE != VersionBitsState(pindexPrev, consensusParams, Consensus::DEPLOYMENT_SEGWIT, versionbitscache)); + const bool fPreSegWit = (pindexPrev->nHeight + 1 < consensusParams.SegwitHeight); UniValue aCaps(UniValue::VARR); aCaps.push_back("proposal"); diff --git a/src/test/setup_common.cpp b/src/test/setup_common.cpp index de877fd16..4d928264b 100644 --- a/src/test/setup_common.cpp +++ b/src/test/setup_common.cpp @@ -122,7 +122,7 @@ TestChain100Setup::TestChain100Setup() : TestingSetup(CBaseChainParams::REGTEST) { // CreateAndProcessBlock() does not support building SegWit blocks, so don't activate in these tests. // TODO: fix the code to support SegWit blocks. - gArgs.ForceSetArg("-vbparams", strprintf("segwit:0:%d", (int64_t)Consensus::BIP9Deployment::NO_TIMEOUT)); + gArgs.ForceSetArg("-segwitheight", "432"); SelectParams(CBaseChainParams::REGTEST); // Generate a 100-block chain: diff --git a/src/validation.cpp b/src/validation.cpp index fc15b755a..ab45ec86e 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -1608,7 +1608,7 @@ static ThresholdConditionCache warningcache[VERSIONBITS_NUM_BITS] GUARDED_BY(cs_ // environment. See test/functional/p2p-segwit.py. static bool IsScriptWitnessEnabled(const Consensus::Params& params) { - return params.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0; + return params.SegwitHeight != std::numeric_limits::max(); } static unsigned int GetBlockScriptFlags(const CBlockIndex* pindex, const Consensus::Params& consensusparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main) { @@ -1649,7 +1649,8 @@ static unsigned int GetBlockScriptFlags(const CBlockIndex* pindex, const Consens flags |= SCRIPT_VERIFY_CHECKSEQUENCEVERIFY; } - if (IsNullDummyEnabled(pindex->pprev, consensusparams)) { + // Start enforcing BIP147 NULLDUMMY (activated simultaneously with segwit) + if (IsWitnessEnabled(pindex->pprev, consensusparams)) { flags |= SCRIPT_VERIFY_NULLDUMMY; } @@ -3045,14 +3046,8 @@ bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::P bool IsWitnessEnabled(const CBlockIndex* pindexPrev, const Consensus::Params& params) { - LOCK(cs_main); - return (VersionBitsState(pindexPrev, params, Consensus::DEPLOYMENT_SEGWIT, versionbitscache) == ThresholdState::ACTIVE); -} - -bool IsNullDummyEnabled(const CBlockIndex* pindexPrev, const Consensus::Params& params) -{ - LOCK(cs_main); - return (VersionBitsState(pindexPrev, params, Consensus::DEPLOYMENT_SEGWIT, versionbitscache) == ThresholdState::ACTIVE); + int height = pindexPrev == nullptr ? 0 : pindexPrev->nHeight + 1; + return (height >= params.SegwitHeight); } // Compute at which vout of the block's coinbase transaction the witness @@ -3087,7 +3082,7 @@ std::vector GenerateCoinbaseCommitment(CBlock& block, const CBloc std::vector commitment; int commitpos = GetWitnessCommitmentIndex(block); std::vector ret(32, 0x00); - if (consensusParams.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0) { + if (consensusParams.SegwitHeight != std::numeric_limits::max()) { if (commitpos == -1) { uint256 witnessroot = BlockWitnessMerkleRoot(block, nullptr); CHash256().Write(witnessroot.begin(), 32).Write(ret.data(), 32).Finalize(witnessroot.begin()); @@ -3222,7 +3217,7 @@ static bool ContextualCheckBlock(const CBlock& block, CValidationState& state, c // {0xaa, 0x21, 0xa9, 0xed}, and the following 32 bytes are SHA256^2(witness root, witness reserved value). In case there are // multiple, the last one is used. bool fHaveWitness = false; - if (VersionBitsState(pindexPrev, consensusParams, Consensus::DEPLOYMENT_SEGWIT, versionbitscache) == ThresholdState::ACTIVE) { + if (nHeight >= consensusParams.SegwitHeight) { int commitpos = GetWitnessCommitmentIndex(block); if (commitpos != -1) { bool malleated = false; diff --git a/src/validation.h b/src/validation.h index d747fdbf2..585a42849 100644 --- a/src/validation.h +++ b/src/validation.h @@ -383,12 +383,10 @@ bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::P /** Check a block is completely valid from start to finish (only works on top of our current best block) */ bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams, const CBlock& block, CBlockIndex* pindexPrev, bool fCheckPOW = true, bool fCheckMerkleRoot = true) EXCLUSIVE_LOCKS_REQUIRED(cs_main); -/** Check whether witness commitments are required for block. */ +/** Check whether witness commitments are required for a block, and whether to enforce NULLDUMMY (BIP 147) rules. + * Note that transaction witness validation rules are always enforced when P2SH is enforced. */ bool IsWitnessEnabled(const CBlockIndex* pindexPrev, const Consensus::Params& params); -/** Check whether NULLDUMMY (BIP 147) has activated. */ -bool IsNullDummyEnabled(const CBlockIndex* pindexPrev, const Consensus::Params& params); - /** When there are blocks in the active chain with missing data, rewind the chainstate and remove them from the block index */ bool RewindBlockIndex(const CChainParams& params) LOCKS_EXCLUDED(cs_main); diff --git a/src/versionbitsinfo.cpp b/src/versionbitsinfo.cpp index 60bfaace9..82df92ac9 100644 --- a/src/versionbitsinfo.cpp +++ b/src/versionbitsinfo.cpp @@ -11,8 +11,4 @@ const struct VBDeploymentInfo VersionBitsDeploymentInfo[Consensus::MAX_VERSION_B /*.name =*/ "testdummy", /*.gbt_force =*/ true, }, - { - /*.name =*/ "segwit", - /*.gbt_force =*/ true, - } }; diff --git a/test/functional/feature_nulldummy.py b/test/functional/feature_nulldummy.py index 60a703c48..250dee152 100755 --- a/test/functional/feature_nulldummy.py +++ b/test/functional/feature_nulldummy.py @@ -41,7 +41,7 @@ class NULLDUMMYTest(BitcoinTestFramework): self.setup_clean_chain = True # This script tests NULLDUMMY activation, which is part of the 'segwit' deployment, so we go through # normal segwit activation here (and don't use the default always-on behaviour). - self.extra_args = [['-whitelist=127.0.0.1', '-vbparams=segwit:0:999999999999', '-addresstype=legacy']] + self.extra_args = [['-whitelist=127.0.0.1', '-segwitheight=432', '-addresstype=legacy']] def skip_test_if_missing_module(self): self.skip_if_no_wallet() diff --git a/test/functional/feature_segwit.py b/test/functional/feature_segwit.py index a71d4071d..d47065d1c 100755 --- a/test/functional/feature_segwit.py +++ b/test/functional/feature_segwit.py @@ -55,20 +55,20 @@ class SegWitTest(BitcoinTestFramework): [ "-acceptnonstdtxn=1", "-rpcserialversion=0", - "-vbparams=segwit:0:999999999999", + "-segwitheight=432", "-addresstype=legacy", ], [ "-acceptnonstdtxn=1", "-blockversion=4", "-rpcserialversion=1", - "-vbparams=segwit:0:999999999999", + "-segwitheight=432", "-addresstype=legacy", ], [ "-acceptnonstdtxn=1", "-blockversion=536870915", - "-vbparams=segwit:0:999999999999", + "-segwitheight=432", "-addresstype=legacy", ], ] diff --git a/test/functional/p2p_compactblocks.py b/test/functional/p2p_compactblocks.py index eb3336bd3..7905cf501 100755 --- a/test/functional/p2p_compactblocks.py +++ b/test/functional/p2p_compactblocks.py @@ -14,7 +14,7 @@ from test_framework.messages import BlockTransactions, BlockTransactionsRequest, from test_framework.mininode import mininode_lock, P2PInterface from test_framework.script import CScript, OP_TRUE, OP_DROP from test_framework.test_framework import BitcoinTestFramework -from test_framework.util import assert_equal, get_bip9_status, wait_until +from test_framework.util import assert_equal, wait_until, softfork_active # TestP2PConn: A peer we use to send messages to bitcoind, and store responses. class TestP2PConn(P2PInterface): @@ -803,7 +803,7 @@ class CompactBlocksTest(BitcoinTestFramework): # We will need UTXOs to construct transactions in later tests. self.make_utxos() - assert_equal(get_bip9_status(self.nodes[0], "segwit")["status"], 'active') + assert softfork_active(self.nodes[0], "segwit") self.log.info("Testing SENDCMPCT p2p message... ") self.test_sendcmpct(self.segwit_node, old_node=self.old_node) diff --git a/test/functional/p2p_segwit.py b/test/functional/p2p_segwit.py index dca71aec4..98f6b1d71 100755 --- a/test/functional/p2p_segwit.py +++ b/test/functional/p2p_segwit.py @@ -76,7 +76,7 @@ from test_framework.util import ( assert_equal, connect_nodes, disconnect_nodes, - get_bip9_status, + softfork_active, hex_str_to_bytes, assert_raises_rpc_error, ) @@ -88,6 +88,8 @@ VB_TOP_BITS = 0x20000000 MAX_SIGOP_COST = 80000 +SEGWIT_HEIGHT = 120 + class UTXO(): """Used to keep track of anyone-can-spend outputs that we can use in the tests.""" def __init__(self, sha256, n, value): @@ -185,9 +187,9 @@ class SegWitTest(BitcoinTestFramework): self.num_nodes = 3 # This test tests SegWit both pre and post-activation, so use the normal BIP9 activation. self.extra_args = [ - ["-whitelist=127.0.0.1", "-acceptnonstdtxn=1", "-vbparams=segwit:0:999999999999"], - ["-whitelist=127.0.0.1", "-acceptnonstdtxn=0", "-vbparams=segwit:0:999999999999"], - ["-whitelist=127.0.0.1", "-acceptnonstdtxn=1", "-vbparams=segwit:0:0"], + ["-whitelist=127.0.0.1", "-acceptnonstdtxn=1", "-segwitheight={}".format(SEGWIT_HEIGHT)], + ["-whitelist=127.0.0.1", "-acceptnonstdtxn=0", "-segwitheight={}".format(SEGWIT_HEIGHT)], + ["-whitelist=127.0.0.1", "-acceptnonstdtxn=1", "-segwitheight=-1"] ] def skip_test_if_missing_module(self): @@ -231,26 +233,18 @@ class SegWitTest(BitcoinTestFramework): # Keep a place to store utxo's that can be used in later tests self.utxo = [] - # Segwit status 'defined' - self.segwit_status = 'defined' + self.log.info("Starting tests before segwit activation") + self.segwit_active = False self.test_non_witness_transaction() - self.test_unnecessary_witness_before_segwit_activation() self.test_v0_outputs_arent_spendable() self.test_block_relay() - self.advance_to_segwit_started() - - # Segwit status 'started' - self.test_getblocktemplate_before_lockin() - self.advance_to_segwit_lockin() - - # Segwit status 'locked_in' - self.test_unnecessary_witness_before_segwit_activation() self.test_witness_tx_relay_before_segwit_activation() - self.test_block_relay() self.test_standardness_v0() + + self.log.info("Advancing to segwit activation") self.advance_to_segwit_active() # Segwit status 'active' @@ -282,15 +276,15 @@ class SegWitTest(BitcoinTestFramework): def subtest(func): # noqa: N805 """Wraps the subtests for logging and state assertions.""" def func_wrapper(self, *args, **kwargs): - self.log.info("Subtest: {} (Segwit status = {})".format(func.__name__, self.segwit_status)) + self.log.info("Subtest: {} (Segwit active = {})".format(func.__name__, self.segwit_active)) # Assert segwit status is as expected - assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], self.segwit_status) + assert_equal(softfork_active(self.nodes[0], 'segwit'), self.segwit_active) func(self, *args, **kwargs) # Each subtest should leave some utxos for the next subtest assert self.utxo self.sync_blocks() # Assert segwit status is as expected at end of subtest - assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], self.segwit_status) + assert_equal(softfork_active(self.nodes[0], 'segwit'), self.segwit_active) return func_wrapper @@ -392,7 +386,7 @@ class SegWitTest(BitcoinTestFramework): # Check that we can getdata for witness blocks or regular blocks, # and the right thing happens. - if self.segwit_status != 'active': + if not self.segwit_active: # Before activation, we should be able to request old blocks with # or without witness, and they should be the same. chain_height = self.nodes[0].getblockcount() @@ -535,33 +529,19 @@ class SegWitTest(BitcoinTestFramework): self.utxo.pop(0) self.utxo.append(UTXO(txid, 2, value)) - @subtest - def advance_to_segwit_started(self): - """Mine enough blocks for segwit's vb state to be 'started'.""" - height = self.nodes[0].getblockcount() - # Will need to rewrite the tests here if we are past the first period - assert height < VB_PERIOD - 1 - # Advance to end of period, status should now be 'started' - self.nodes[0].generate(VB_PERIOD - height - 1) - assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'started') - self.segwit_status = 'started' - @subtest def test_getblocktemplate_before_lockin(self): txid = int(self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1), 16) for node in [self.nodes[0], self.nodes[2]]: gbt_results = node.getblocktemplate({"rules": ["segwit"]}) - block_version = gbt_results['version'] if node == self.nodes[2]: # If this is a non-segwit node, we should not get a witness - # commitment, nor a version bit signalling segwit. - assert_equal(block_version & (1 << VB_WITNESS_BIT), 0) + # commitment. assert 'default_witness_commitment' not in gbt_results else: - # For segwit-aware nodes, check the version bit and the witness - # commitment are correct. - assert block_version & (1 << VB_WITNESS_BIT) != 0 + # For segwit-aware nodes, check the witness + # commitment is correct. assert 'default_witness_commitment' in gbt_results witness_commitment = gbt_results['default_witness_commitment'] @@ -571,18 +551,9 @@ class SegWitTest(BitcoinTestFramework): script = get_witness_script(witness_root, 0) assert_equal(witness_commitment, script.hex()) - @subtest - def advance_to_segwit_lockin(self): - """Mine enough blocks to lock in segwit, but don't activate.""" - height = self.nodes[0].getblockcount() - # Advance to end of period, and verify lock-in happens at the end - self.nodes[0].generate(VB_PERIOD - 1) - height = self.nodes[0].getblockcount() - assert (height % VB_PERIOD) == VB_PERIOD - 2 - assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'started') + # Clear out the mempool self.nodes[0].generate(1) - assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'locked_in') - self.segwit_status = 'locked_in' + self.sync_blocks() @subtest def test_witness_tx_relay_before_segwit_activation(self): @@ -686,7 +657,7 @@ class SegWitTest(BitcoinTestFramework): tx3.wit.vtxinwit.append(CTxInWitness()) tx3.wit.vtxinwit[0].scriptWitness.stack = [witness_program] tx3.rehash() - if self.segwit_status != 'active': + if not self.segwit_active: # Just check mempool acceptance, but don't add the transaction to the mempool, since witness is disallowed # in blocks and the tx is impossible to mine right now. assert_equal(self.nodes[0].testmempoolaccept([tx3.serialize_with_witness().hex()]), [{'txid': tx3.hash, 'allowed': True}]) @@ -707,12 +678,13 @@ class SegWitTest(BitcoinTestFramework): @subtest def advance_to_segwit_active(self): """Mine enough blocks to activate segwit.""" + assert not softfork_active(self.nodes[0], 'segwit') height = self.nodes[0].getblockcount() - self.nodes[0].generate(VB_PERIOD - (height % VB_PERIOD) - 2) - assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'locked_in') + self.nodes[0].generate(SEGWIT_HEIGHT - height - 2) + assert not softfork_active(self.nodes[0], 'segwit') self.nodes[0].generate(1) - assert_equal(get_bip9_status(self.nodes[0], 'segwit')['status'], 'active') - self.segwit_status = 'active' + assert softfork_active(self.nodes[0], 'segwit') + self.segwit_active = True @subtest def test_p2sh_witness(self): @@ -1924,13 +1896,13 @@ class SegWitTest(BitcoinTestFramework): # Restart with the new binary self.stop_node(2) - self.start_node(2, extra_args=["-vbparams=segwit:0:999999999999"]) + self.start_node(2, extra_args=["-segwitheight={}".format(SEGWIT_HEIGHT)]) connect_nodes(self.nodes[0], 2) self.sync_blocks() # Make sure that this peer thinks segwit has activated. - assert get_bip9_status(self.nodes[2], 'segwit')['status'] == "active" + assert softfork_active(self.nodes[2], 'segwit') # Make sure this peer's blocks match those of node0. height = self.nodes[2].getblockcount() diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py index 095e0e3e7..b935f6ab9 100644 --- a/test/functional/test_framework/util.py +++ b/test/functional/test_framework/util.py @@ -342,10 +342,6 @@ def delete_cookie_file(datadir): logger.debug("Deleting leftover cookie file") os.remove(os.path.join(datadir, "regtest", ".cookie")) -def get_bip9_status(node, key): - info = node.getblockchaininfo() - return info['softforks'][key]['bip9'] - def softfork_active(node, key): """Return whether a softfork is active.""" return node.getblockchaininfo()['softforks'][key]['active']