#!/usr/bin/env python3 # Copyright (c) 2015-2021 The Dash Core developers # Distributed under the MIT software license, see the accompanying # file COPYING or http://www.opensource.org/licenses/mit-license.php. ''' feature_llmq_simplepose.py Checks simple PoSe system based on LLMQ commitments ''' import time from test_framework.test_framework import DashTestFramework from test_framework.util import connect_nodes, force_finish_mnsync, p2p_port, wait_until class LLMQSimplePoSeTest(DashTestFramework): def set_test_params(self): self.set_dash_test_params(6, 5, fast_dip3_enforcement=True) self.set_dash_llmq_test_params(5, 3) def run_test(self): self.nodes[0].sporkupdate("SPORK_17_QUORUM_DKG_ENABLED", 0) self.wait_for_sporks_same() # check if mining quorums with all nodes being online succeeds without punishment/banning self.test_no_banning() # Now lets isolate MNs one by one and verify that punishment/banning happens self.test_banning(self.isolate_mn, 1) self.repair_masternodes(False) self.nodes[0].sporkupdate("SPORK_21_QUORUM_ALL_CONNECTED", 0) self.nodes[0].sporkupdate("SPORK_23_QUORUM_POSE", 0) self.wait_for_sporks_same() self.reset_probe_timeouts() # Make sure no banning happens with spork21 enabled self.test_no_banning() # Lets restart masternodes with closed ports and verify that they get banned even though they are connected to other MNs (via outbound connections) self.test_banning(self.close_mn_port, 3) self.repair_masternodes(True) self.reset_probe_timeouts() self.test_banning(self.force_old_mn_proto, 3) # With PoSe off there should be no punishing for non-reachable and outdated nodes self.nodes[0].sporkupdate("SPORK_23_QUORUM_POSE", 4070908800) self.wait_for_sporks_same() self.repair_masternodes(True) self.force_old_mn_proto(self.mninfo[0]) self.test_no_banning(3) self.repair_masternodes(True) self.close_mn_port(self.mninfo[0]) self.test_no_banning(3) def isolate_mn(self, mn): mn.node.setnetworkactive(False) wait_until(lambda: mn.node.getconnectioncount() == 0) return True, True def close_mn_port(self, mn): self.stop_node(mn.node.index) self.start_masternode(mn, ["-listen=0", "-nobind"]) connect_nodes(mn.node, 0) # Make sure the to-be-banned node is still connected well via outbound connections for mn2 in self.mninfo: if mn2 is not mn: connect_nodes(mn.node, mn2.node.index) self.reset_probe_timeouts() return False, False def force_old_mn_proto(self, mn): self.stop_node(mn.node.index) self.start_masternode(mn, ["-pushversion=70216"]) connect_nodes(mn.node, 0) self.reset_probe_timeouts() return False, True def test_no_banning(self, expected_connections=None): for i in range(3): self.mine_quorum(expected_connections=expected_connections) for mn in self.mninfo: assert not self.check_punished(mn) and not self.check_banned(mn) def test_banning(self, invalidate_proc, expected_connections): mninfos_online = self.mninfo.copy() mninfos_valid = self.mninfo.copy() expected_contributors = len(mninfos_online) for i in range(2): mn = mninfos_valid.pop() went_offline, instant_ban = invalidate_proc(mn) if went_offline: mninfos_online.remove(mn) expected_contributors -= 1 # NOTE: Min PoSe penalty is 100 (see CDeterministicMNList::CalcMaxPoSePenalty()), # so nodes are PoSe-banned in the same DKG they misbehave without being PoSe-punished first. if not instant_ban: # it's ok to miss probes/quorum connections up to 5 times for i in range(5): self.reset_probe_timeouts() self.mine_quorum(expected_connections=expected_connections, expected_members=expected_contributors, expected_contributions=expected_contributors, expected_complaints=0, expected_commitments=expected_contributors, mninfos_online=mninfos_online, mninfos_valid=mninfos_valid) self.reset_probe_timeouts() self.mine_quorum(expected_connections=expected_connections, expected_members=expected_contributors, expected_contributions=expected_contributors, expected_complaints=expected_contributors-1, expected_commitments=expected_contributors, mninfos_online=mninfos_online, mninfos_valid=mninfos_valid) assert self.check_banned(mn) if not went_offline: # we do not include PoSe banned mns in quorums, so the next one should have 1 contributor less expected_contributors -= 1 def repair_masternodes(self, restart): # Repair all nodes for mn in self.mninfo: if self.check_banned(mn) or self.check_punished(mn): addr = self.nodes[0].getnewaddress() self.nodes[0].sendtoaddress(addr, 0.1) self.nodes[0].protx('update_service', mn.proTxHash, '127.0.0.1:%d' % p2p_port(mn.node.index), mn.keyOperator, "", addr) # Make sure this tx "safe" to mine even when InstantSend and ChainLocks are no longer functional self.bump_mocktime(60 * 10 + 1) self.nodes[0].generate(1) assert not self.check_banned(mn) if restart: self.stop_node(mn.node.index) self.start_masternode(mn) else: mn.node.setnetworkactive(True) connect_nodes(mn.node, 0) self.sync_all() # Isolate and re-connect all MNs (otherwise there might be open connections with no MNAUTH for MNs which were banned before) for mn in self.mninfo: mn.node.setnetworkactive(False) wait_until(lambda: mn.node.getconnectioncount() == 0) mn.node.setnetworkactive(True) force_finish_mnsync(mn.node) connect_nodes(mn.node, 0) def reset_probe_timeouts(self): # Make sure all masternodes will reconnect/re-probe self.bump_mocktime(10 * 60 + 1) # Sleep a couple of seconds to let mn sync tick to happen time.sleep(2) def check_punished(self, mn): info = self.nodes[0].protx('info', mn.proTxHash) if info['state']['PoSePenalty'] > 0: return True return False def check_banned(self, mn): info = self.nodes[0].protx('info', mn.proTxHash) if info['state']['PoSeBanHeight'] != -1: return True return False if __name__ == '__main__': LLMQSimplePoSeTest().main()