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feature_llmq_simplepose.py
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#!/usr/bin/env python3
# Copyright (c) 2015-2021 The Dash Core developers
# Copyright (c) 2020-2022 The Cosanta 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(CosantaTestFramework):
def set_test_params(self):
self.set_cosanta_test_params(6, 5, fast_dip3_enforcement=True)
self.set_cosanta_llmq_test_params(5, 3)
def run_test(self):
self.nodes[0].spork("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].spork("SPORK_21_QUORUM_ALL_CONNECTED", 0)
self.nodes[0].spork("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# With PoSe off there should be no punishing for non-reachable and outdated nodes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].spork("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()