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llmq-simplepose.py
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llmq-simplepose.py
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#!/usr/bin/env python3
# Copyright (c) 2015-2020 The Dash Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
import time
from test_framework.test_framework import AxeTestFramework
from test_framework.util import *
'''
llmq-simplepose.py
Checks simple PoSe system based on LLMQ commitments
'''
class LLMQSimplePoSeTest(AxeTestFramework):
def set_test_params(self):
self.set_axe_test_params(6, 5, fast_dip3_enforcement=True)
self.set_axe_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
def isolate_mn(mn):
mn.node.setnetworkactive(False)
wait_until(lambda: mn.node.getconnectioncount() == 0)
self.test_banning(isolate_mn, True)
self.repair_masternodes(False)
self.nodes[0].spork("SPORK_21_QUORUM_ALL_CONNECTED", 0)
self.wait_for_sporks_same()
self.reset_probe_timeouts()
# Make sure no banning happens with spork21 enabled
self.test_no_banning(expected_connections=4)
# Lets restart masternodes with closed ports and verify that they get banned even though they are connected to other MNs (via outbound connections)
def close_mn_port(mn):
self.stop_node(mn.node.index)
self.start_masternode(mn, ["-listen=0"])
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()
self.test_banning(close_mn_port, False)
self.repair_masternodes(True)
self.reset_probe_timeouts()
def force_old_mn_proto(mn):
self.stop_node(mn.node.index)
self.start_masternode(mn, ["-pushversion=70216"])
connect_nodes(mn.node, 0)
self.reset_probe_timeouts()
self.test_banning(force_old_mn_proto, False)
def test_no_banning(self, expected_connections=1):
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, expect_contribution_to_fail):
online_mninfos = self.mninfo.copy()
for i in range(2):
mn = online_mninfos[len(online_mninfos) - 1]
online_mninfos.remove(mn)
invalidate_proc(mn)
t = time.time()
while (not self.check_punished(mn) or not self.check_banned(mn)) and (time.time() - t) < 120:
expected_contributors = len(online_mninfos) + 1
if expect_contribution_to_fail:
expected_contributors -= 1
# Make sure we do fresh probes
self.bump_mocktime(60 * 60)
self.mine_quorum(expected_connections=1, expected_members=len(online_mninfos), expected_contributions=expected_contributors, expected_complaints=expected_contributors-1, expected_commitments=expected_contributors, mninfos=online_mninfos)
assert(self.check_punished(mn) and self.check_banned(mn))
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)
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(60 * 60 + 1)
self.sync_all()
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()