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https://github.com/dashpay/dash.git
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367 lines
18 KiB
Python
Executable File
367 lines
18 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2015-2024 The Dash Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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'''
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feature_llmq_chainlocks.py
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Checks LLMQs based ChainLocks
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'''
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import time
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from io import BytesIO
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from test_framework.messages import CBlock, CCbTx
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from test_framework.test_framework import DashTestFramework
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from test_framework.util import assert_equal, assert_raises_rpc_error, force_finish_mnsync, softfork_active
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class LLMQChainLocksTest(DashTestFramework):
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def set_test_params(self):
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self.set_dash_test_params(5, 4, fast_dip3_enforcement=True)
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def run_test(self):
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# Connect all nodes to node1 so that we always have the whole network connected
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# Otherwise only masternode connections will be established between nodes, which won't propagate TXs/blocks
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# Usually node0 is the one that does this, but in this test we isolate it multiple times
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for i in range(len(self.nodes)):
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self.connect_nodes(i, 1)
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self.test_coinbase_best_cl(self.nodes[0], expected_cl_in_cb=False)
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self.activate_v20(expected_activation_height=1200)
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self.log.info("Activated v20 at height:" + str(self.nodes[0].getblockcount()))
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# v20 is active for the next block, not for the tip
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self.test_coinbase_best_cl(self.nodes[0], expected_cl_in_cb=False)
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# v20 is active, no quorums, no CLs - null CL in CbTx
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nocl_block_hash = self.nodes[0].generate(1)[0]
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self.test_coinbase_best_cl(self.nodes[0], expected_cl_in_cb=True, expected_null_cl=True)
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cbtx = self.nodes[0].getspecialtxes(nocl_block_hash, 5, 1, 0, 2)[0]
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assert_equal(cbtx["instantlock"], False)
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assert_equal(cbtx["instantlock_internal"], False)
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assert_equal(cbtx["chainlock"], False)
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self.nodes[0].sporkupdate("SPORK_17_QUORUM_DKG_ENABLED", 0)
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self.wait_for_sporks_same()
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self.move_to_next_cycle()
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self.log.info("Cycle H height:" + str(self.nodes[0].getblockcount()))
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self.move_to_next_cycle()
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self.log.info("Cycle H+C height:" + str(self.nodes[0].getblockcount()))
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self.move_to_next_cycle()
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self.log.info("Cycle H+2C height:" + str(self.nodes[0].getblockcount()))
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self.mine_cycle_quorum(llmq_type_name="llmq_test_dip0024", llmq_type=103)
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self.log.info("Mine single block, wait for chainlock")
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self.nodes[0].generate(1)
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self.wait_for_chainlocked_block_all_nodes(self.nodes[0].getbestblockhash())
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self.test_coinbase_best_cl(self.nodes[0])
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# ChainLock locks all the blocks below it so nocl_block_hash should be locked too
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cbtx = self.nodes[0].getspecialtxes(nocl_block_hash, 5, 1, 0, 2)[0]
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assert_equal(cbtx["instantlock"], True)
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assert_equal(cbtx["instantlock_internal"], False)
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assert_equal(cbtx["chainlock"], True)
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self.log.info("Mine many blocks, wait for chainlock")
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self.nodes[0].generate(20)
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# We need more time here due to 20 blocks being generated at once
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self.wait_for_chainlocked_block_all_nodes(self.nodes[0].getbestblockhash(), timeout=30)
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self.test_coinbase_best_cl(self.nodes[0])
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self.log.info("Assert that all blocks up until the tip are chainlocked")
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for h in range(1, self.nodes[0].getblockcount()):
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block = self.nodes[0].getblock(self.nodes[0].getblockhash(h))
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assert block['chainlock']
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self.log.info(f"Test submitchainlock for too high block")
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assert_raises_rpc_error(-1, f"No quorum found. Current tip height: {self.nodes[1].getblockcount()}", self.nodes[1].submitchainlock, '0000000000000000000000000000000000000000000000000000000000000000', 'a5c69505b5744524c9ed6551d8a57dc520728ea013496f46baa8a73df96bfd3c86e474396d747a4af11aaef10b17dbe80498b6a2fe81938fe917a3fedf651361bfe5367c800d23d3125820e6ee5b42189f0043be94ce27e73ea13620c9ef6064', self.nodes[1].getblockcount() + 300)
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self.log.info("Update spork to SPORK_19_CHAINLOCKS_ENABLED and test its behaviour")
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self.nodes[0].sporkupdate("SPORK_19_CHAINLOCKS_ENABLED", 1)
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self.wait_for_sporks_same()
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self.log.info("Generate new blocks and verify that they are not chainlocked")
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previous_block_hash = self.nodes[0].getbestblockhash()
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for _ in range(2):
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block_hash = self.nodes[0].generate(1)[0]
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self.wait_for_chainlocked_block_all_nodes(block_hash, expected=False)
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assert self.nodes[0].getblock(previous_block_hash)["chainlock"]
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self.nodes[0].sporkupdate("SPORK_19_CHAINLOCKS_ENABLED", 0)
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self.wait_for_sporks_same()
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self.log.info("Isolate node, mine on another, and reconnect")
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self.isolate_node(0)
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node0_mining_addr = self.nodes[0].getnewaddress()
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node0_tip = self.nodes[0].getbestblockhash()
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self.nodes[1].generatetoaddress(5, node0_mining_addr)
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self.wait_for_chainlocked_block(self.nodes[1], self.nodes[1].getbestblockhash())
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self.test_coinbase_best_cl(self.nodes[0])
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assert self.nodes[0].getbestblockhash() == node0_tip
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self.reconnect_isolated_node(0, 1)
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self.nodes[1].generatetoaddress(1, node0_mining_addr)
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self.wait_for_chainlocked_block_all_nodes(self.nodes[1].getbestblockhash())
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self.test_coinbase_best_cl(self.nodes[0])
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self.log.info("Isolate node, mine on another, reconnect and submit CL via RPC")
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self.isolate_node(0)
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self.nodes[1].generate(1)
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self.wait_for_chainlocked_block(self.nodes[1], self.nodes[1].getbestblockhash())
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best_0 = self.nodes[0].getbestchainlock()
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best_1 = self.nodes[1].getbestchainlock()
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assert best_0['blockhash'] != best_1['blockhash']
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assert best_0['height'] != best_1['height']
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assert best_0['signature'] != best_1['signature']
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assert_equal(best_0['known_block'], True)
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node_height = self.nodes[1].submitchainlock(best_0['blockhash'], best_0['signature'], best_0['height'])
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rpc_height = self.nodes[0].submitchainlock(best_1['blockhash'], best_1['signature'], best_1['height'])
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assert_equal(best_1['height'], node_height)
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assert_equal(best_1['height'], rpc_height)
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best_0 = self.nodes[0].getbestchainlock()
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assert_equal(best_0['blockhash'], best_1['blockhash'])
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assert_equal(best_0['height'], best_1['height'])
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assert_equal(best_0['signature'], best_1['signature'])
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assert_equal(best_0['known_block'], False)
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self.reconnect_isolated_node(0, 1)
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self.sync_all()
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self.log.info("Isolate node, mine on both parts of the network, and reconnect")
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self.isolate_node(0)
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bad_tip = self.nodes[0].generate(5)[-1]
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self.nodes[1].generatetoaddress(1, node0_mining_addr)
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good_tip = self.nodes[1].getbestblockhash()
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self.wait_for_chainlocked_block(self.nodes[1], good_tip)
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assert not self.nodes[0].getblock(self.nodes[0].getbestblockhash())["chainlock"]
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self.reconnect_isolated_node(0, 1)
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self.nodes[1].generatetoaddress(1, node0_mining_addr)
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self.wait_for_chainlocked_block_all_nodes(self.nodes[1].getbestblockhash())
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self.test_coinbase_best_cl(self.nodes[0])
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assert self.nodes[0].getblock(self.nodes[0].getbestblockhash())["previousblockhash"] == good_tip
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assert self.nodes[1].getblock(self.nodes[1].getbestblockhash())["previousblockhash"] == good_tip
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self.log.info("The tip mined while this node was isolated should be marked conflicting now")
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found = False
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for tip in self.nodes[0].getchaintips(2):
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if tip["hash"] == bad_tip:
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assert tip["status"] == "conflicting"
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found = True
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break
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assert found
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self.log.info("Keep node connected and let it try to reorg the chain")
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good_tip = self.nodes[0].getbestblockhash()
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self.log.info("Restart it so that it forgets all the chainlock messages from the past")
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self.restart_node(0)
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self.connect_nodes(0, 1)
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assert self.nodes[0].getbestblockhash() == good_tip
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self.nodes[0].invalidateblock(good_tip)
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self.log.info("Now try to reorg the chain")
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self.nodes[0].generate(2)
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time.sleep(6)
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assert self.nodes[1].getbestblockhash() == good_tip
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bad_tip = self.nodes[0].generate(2)[-1]
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time.sleep(6)
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assert self.nodes[0].getbestblockhash() == bad_tip
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assert self.nodes[1].getbestblockhash() == good_tip
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self.log.info("Now let the node which is on the wrong chain reorg back to the locked chain")
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self.nodes[0].reconsiderblock(good_tip)
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assert self.nodes[0].getbestblockhash() != good_tip
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good_fork = good_tip
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good_tip = self.nodes[1].generatetoaddress(1, node0_mining_addr)[-1] # this should mark bad_tip as conflicting
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self.wait_for_chainlocked_block_all_nodes(good_tip)
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self.test_coinbase_best_cl(self.nodes[0])
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assert self.nodes[0].getbestblockhash() == good_tip
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found = False
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for tip in self.nodes[0].getchaintips(2):
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if tip["hash"] == bad_tip:
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assert tip["status"] == "conflicting"
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found = True
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break
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assert found
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self.log.info("Should switch to the best non-conflicting tip (not to the most work chain) on restart")
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assert int(self.nodes[0].getblock(bad_tip)["chainwork"], 16) > int(self.nodes[1].getblock(good_tip)["chainwork"], 16)
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self.restart_node(0)
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self.nodes[0].invalidateblock(good_fork)
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self.restart_node(0)
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time.sleep(1)
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assert self.nodes[0].getbestblockhash() == good_tip
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self.log.info("Isolate a node and let it create some transactions which won't get IS locked")
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force_finish_mnsync(self.nodes[0])
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self.isolate_node(0)
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txs = []
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for _ in range(3):
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txs.append(self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1))
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txs += self.create_chained_txs(self.nodes[0], 1)
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self.log.info("Assert that after block generation these TXs are NOT included (as they are \"unsafe\")")
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node0_tip = self.nodes[0].generate(1)[-1]
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for txid in txs:
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tx = self.nodes[0].getrawtransaction(txid, 1)
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assert "confirmations" not in tx
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time.sleep(1)
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node0_tip_block = self.nodes[0].getblock(node0_tip)
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assert not node0_tip_block["chainlock"]
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assert node0_tip_block["previousblockhash"] == good_tip
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self.log.info("Disable LLMQ based InstantSend for a very short time (this never gets propagated to other nodes)")
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self.nodes[0].sporkupdate("SPORK_2_INSTANTSEND_ENABLED", 4070908800)
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self.log.info("Now the TXs should be included")
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self.nodes[0].generate(1)
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self.nodes[0].sporkupdate("SPORK_2_INSTANTSEND_ENABLED", 0)
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self.log.info("Assert that TXs got included now")
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for txid in txs:
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tx = self.nodes[0].getrawtransaction(txid, 1)
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assert "confirmations" in tx and tx["confirmations"] > 0
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# Enable network on first node again, which will cause the blocks to propagate and IS locks to happen retroactively
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# for the mined TXs, which will then allow the network to create a CLSIG
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self.log.info("Re-enable network on first node and wait for chainlock")
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self.reconnect_isolated_node(0, 1)
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self.wait_for_chainlocked_block(self.nodes[0], self.nodes[0].getbestblockhash(), timeout=30)
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for i in range(2):
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self.log.info(f"{'Disable' if i == 0 else 'Enable'} Chainlock")
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self.nodes[0].sporkupdate("SPORK_19_CHAINLOCKS_ENABLED", 4070908800 if i == 0 else 0)
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self.wait_for_sporks_same()
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self.log.info("Add a new node and let it sync")
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self.dynamically_add_masternode(evo=False)
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added_idx = len(self.nodes) - 1
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assert_raises_rpc_error(-32603, "Unable to find any ChainLock", self.nodes[added_idx].getbestchainlock)
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self.log.info("Test that new node can mine without Chainlock info")
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tip_0 = self.nodes[0].getblock(self.nodes[0].getbestblockhash(), 2)
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self.nodes[added_idx].generate(1)
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self.sync_blocks(self.nodes)
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tip_1 = self.nodes[0].getblock(self.nodes[0].getbestblockhash(), 2)
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assert_equal(tip_1['cbTx']['bestCLSignature'], tip_0['cbTx']['bestCLSignature'])
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assert_equal(tip_1['cbTx']['bestCLHeightDiff'], tip_0['cbTx']['bestCLHeightDiff'] + 1)
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self.log.info("Test that bestCLHeightDiff conditions are relaxed before mn_rr")
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self.test_bestCLHeightDiff(False)
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self.activate_mn_rr()
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self.log.info("Activated mn_rr at height:" + str(self.nodes[0].getblockcount()))
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self.log.info("Test that bestCLHeightDiff conditions are stricter after mn_rr")
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self.test_bestCLHeightDiff(True)
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def create_chained_txs(self, node, amount):
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txid = node.sendtoaddress(node.getnewaddress(), amount)
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tx = node.getrawtransaction(txid, 1)
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inputs = []
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valueIn = 0
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for txout in tx["vout"]:
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inputs.append({"txid": txid, "vout": txout["n"]})
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valueIn += txout["value"]
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outputs = {
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node.getnewaddress(): round(float(valueIn) - 0.0001, 6)
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}
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rawtx = node.createrawtransaction(inputs, outputs)
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rawtx = node.signrawtransactionwithwallet(rawtx)
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rawtxid = node.sendrawtransaction(rawtx["hex"])
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return [txid, rawtxid]
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def test_coinbase_best_cl(self, node, expected_cl_in_cb=True, expected_null_cl=False):
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block_hash = node.getbestblockhash()
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block = node.getblock(block_hash, 2)
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cbtx = block["cbTx"]
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assert_equal(int(cbtx["version"]) > 2, expected_cl_in_cb)
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if expected_cl_in_cb:
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cb_height = int(cbtx["height"])
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best_cl_height_diff = int(cbtx["bestCLHeightDiff"])
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best_cl_signature = cbtx["bestCLSignature"]
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assert_equal(expected_null_cl, int(best_cl_signature, 16) == 0)
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if expected_null_cl:
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# Null bestCLSignature is allowed.
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# bestCLHeightDiff must be 0 if bestCLSignature is null
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assert_equal(best_cl_height_diff, 0)
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# Returning as no more tests can be conducted
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return
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best_cl_height = cb_height - best_cl_height_diff - 1
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target_block_hash = node.getblockhash(best_cl_height)
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# Verify CL signature
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assert node.verifychainlock(target_block_hash, best_cl_signature, best_cl_height)
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else:
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assert "bestCLHeightDiff" not in cbtx and "bestCLSignature" not in cbtx
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def test_bestCLHeightDiff(self, mn_rr_active):
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# We need 2 blocks we can grab clsigs from
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for _ in range(2):
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self.wait_for_chainlocked_block_all_nodes(self.nodes[0].generate(1)[0])
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assert_equal(softfork_active(self.nodes[1], "mn_rr"), mn_rr_active)
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tip1_hash = self.nodes[1].getbestblockhash()
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self.isolate_node(1)
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tip0_hash = self.nodes[0].generate(1)[0]
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block_hex = self.nodes[0].getblock(tip0_hash, 0)
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mal_block = CBlock()
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mal_block.deserialize(BytesIO(bytes.fromhex(block_hex)))
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cbtx = CCbTx()
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cbtx.deserialize(BytesIO(mal_block.vtx[0].vExtraPayload))
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assert_equal(cbtx.bestCLHeightDiff, 0)
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cbtx.bestCLHeightDiff = 1
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mal_block.vtx[0].vExtraPayload = cbtx.serialize()
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mal_block.vtx[0].rehash()
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mal_block.hashMerkleRoot = mal_block.calc_merkle_root()
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mal_block.solve()
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result = self.nodes[1].submitblock(mal_block.serialize().hex())
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assert_equal(result, "bad-cbtx-invalid-clsig")
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assert_equal(self.nodes[1].getbestblockhash(), tip1_hash)
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# Update the sig too and it should pass now
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cbtx.bestCLSignature = bytes.fromhex(self.nodes[1].getblock(tip1_hash, 2)["tx"][0]["cbTx"]["bestCLSignature"])
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mal_block.vtx[0].vExtraPayload = cbtx.serialize()
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mal_block.vtx[0].rehash()
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mal_block.hashMerkleRoot = mal_block.calc_merkle_root()
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mal_block.solve()
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result = self.nodes[1].submitblock(mal_block.serialize().hex())
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assert_equal(result, None)
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assert not self.nodes[1].getbestblockhash() == tip1_hash
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# Revert to test another use case
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self.nodes[1].invalidateblock(self.nodes[1].getbestblockhash())
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assert_equal(self.nodes[1].getbestblockhash(), tip1_hash)
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# Now it's too old but fails because of another reason when mn_rr is active
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cbtx.bestCLHeightDiff = 2
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mal_block.vtx[0].vExtraPayload = cbtx.serialize()
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mal_block.vtx[0].rehash()
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mal_block.hashMerkleRoot = mal_block.calc_merkle_root()
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mal_block.solve()
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result = self.nodes[1].submitblock(mal_block.serialize().hex())
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assert_equal(result, "bad-cbtx-older-clsig" if mn_rr_active else "bad-cbtx-invalid-clsig")
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assert_equal(self.nodes[1].getbestblockhash(), tip1_hash)
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# Update the sig too and it should pass now when mn_rr is not active and fail otherwise
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old_blockhash = self.nodes[1].getblockhash(self.nodes[1].getblockcount() - 1)
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cbtx.bestCLSignature = bytes.fromhex(self.nodes[1].getblock(old_blockhash, 2)["tx"][0]["cbTx"]["bestCLSignature"])
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mal_block.vtx[0].vExtraPayload = cbtx.serialize()
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mal_block.vtx[0].rehash()
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mal_block.hashMerkleRoot = mal_block.calc_merkle_root()
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mal_block.solve()
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result = self.nodes[1].submitblock(mal_block.serialize().hex())
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if mn_rr_active:
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assert_equal(result, "bad-cbtx-older-clsig")
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assert_equal(self.nodes[1].getbestblockhash(), tip1_hash)
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else:
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assert_equal(result, None)
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assert not self.nodes[1].getbestblockhash() == tip1_hash
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self.reconnect_isolated_node(1, 0)
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self.sync_all()
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if __name__ == '__main__':
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LLMQChainLocksTest().main()
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