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p2p_quorum_data.py
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#!/usr/bin/env python3
# Copyright (c) 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.
import time
from test_framework.messages import msg_qgetdata, msg_qwatch
from test_framework.mininode import (
mininode_lock,
P2PInterface,
)
from test_framework.test_framework import DashTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
connect_nodes,
force_finish_mnsync,
wait_until,
)
'''
p2p_quorum_data.py
Tests QGETDATA/QDATA functionality
'''
# Possible error values of QDATA
QUORUM_TYPE_INVALID = 1
QUORUM_BLOCK_NOT_FOUND = 2
QUORUM_NOT_FOUND = 3
MASTERNODE_IS_NO_MEMBER = 4
QUORUM_VERIFICATION_VECTOR_MISSING = 5
ENCRYPTED_CONTRIBUTIONS_MISSING = 6
# Used to overwrite MNAUTH for mininode connections
fake_mnauth_1 = ["cecf37bf0ec05d2d22cb8227f88074bb882b94cd2081ba318a5a444b1b15b9fd",
"087ba00bf61135f3860c4944a0debabe186ef82628fbe4ceaed1ad51d672c58dde14ea4b321efe0b89257a40322bc972"]
fake_mnauth_2 = ["6ad7ed7a2d6c2c1db30fc364114602b36b2730a9aa96d8f11f1871a9cee37378",
"122463411a86362966a5161805f24cf6a0eef08a586b8e00c4f0ad0b084c5bb3f5c9a60ee5ffc78db2313897e3ab2223"]
# Used to distinguish mininode connections
uacomment_m3_1 = "MN3_1"
uacomment_m3_2 = "MN3_2"
def assert_qdata(qdata, qgetdata, error, len_vvec=0, len_contributions=0):
assert qdata is not None and qgetdata is not None
assert_equal(qdata.quorum_type, qgetdata.quorum_type)
assert_equal(qdata.quorum_hash, qgetdata.quorum_hash)
assert_equal(qdata.data_mask, qgetdata.data_mask)
assert_equal(qdata.protx_hash, qgetdata.protx_hash)
assert_equal(qdata.error, error)
assert_equal(len(qdata.quorum_vvec), len_vvec)
assert_equal(len(qdata.enc_contributions), len_contributions)
def wait_for_banscore(node, peer_id, expected_score):
def get_score():
for peer in node.getpeerinfo():
if peer["id"] == peer_id:
return peer["banscore"]
return None
wait_until(lambda: get_score() == expected_score, timeout=6)
def p2p_connection(node, uacomment=None):
return node.add_p2p_connection(QuorumDataInterface(), uacomment=uacomment)
def get_mininode_id(node, uacomment=None):
def get_id():
for p in node.getpeerinfo():
for p2p in node.p2ps:
if uacomment is not None and p2p.uacomment != uacomment:
continue
if p["subver"] == p2p.strSubVer.decode():
return p["id"]
return None
wait_until(lambda: get_id() is not None, timeout=10)
return get_id()
def mnauth(node, node_id, protx_hash, operator_pubkey):
assert node.mnauth(node_id, protx_hash, operator_pubkey)
mnauth_peer_id = None
for peer in node.getpeerinfo():
if "verified_proregtx_hash" in peer and peer["verified_proregtx_hash"] == protx_hash:
assert_equal(mnauth_peer_id, None)
mnauth_peer_id = peer["id"]
assert_equal(mnauth_peer_id, node_id)
class QuorumDataInterface(P2PInterface):
def __init__(self):
super().__init__()
def test_qgetdata(self, qgetdata, expected_error=0, len_vvec=0, len_contributions=0, response_expected=True):
self.send_message(qgetdata)
self.wait_for_qdata(message_expected=response_expected)
if response_expected:
assert_qdata(self.get_qdata(), qgetdata, expected_error, len_vvec, len_contributions)
def wait_for_qgetdata(self, timeout=3, message_expected=True):
def test_function():
return self.message_count["qgetdata"]
wait_until(test_function, timeout=timeout, lock=mininode_lock, do_assert=message_expected)
self.message_count["qgetdata"] = 0
if not message_expected:
assert not self.message_count["qgetdata"]
def get_qdata(self):
return self.last_message["qdata"]
def wait_for_qdata(self, timeout=10, message_expected=True):
def test_function():
return self.message_count["qdata"]
wait_until(test_function, timeout=timeout, lock=mininode_lock, do_assert=message_expected)
self.message_count["qdata"] = 0
if not message_expected:
assert not self.message_count["qdata"]
class QuorumDataMessagesTest(DashTestFramework):
def set_test_params(self):
extra_args = [["-llmq-data-recovery=0"]] * 4
self.set_dash_test_params(4, 3, fast_dip3_enforcement=True, extra_args=extra_args)
def restart_mn(self, mn, reindex=False):
args = self.extra_args[mn.nodeIdx] + ['-masternodeblsprivkey=%s' % mn.keyOperator]
if reindex:
args.append('-reindex')
self.restart_node(mn.nodeIdx, args)
force_finish_mnsync(mn.node)
connect_nodes(mn.node, 0)
self.sync_blocks()
def run_test(self):
def force_request_expire(bump_seconds=self.quorum_data_request_expiration_timeout + 1):
self.bump_mocktime(bump_seconds)
# Test with/without expired request cleanup
if node0.getblockcount() % 2:
node0.generate(1)
self.sync_blocks()
def test_basics():
self.log.info("Testing basics of QGETDATA/QDATA")
p2p_node0 = p2p_connection(node0)
p2p_mn1 = p2p_connection(mn1.node)
id_p2p_node0 = get_mininode_id(node0)
id_p2p_mn1 = get_mininode_id(mn1.node)
# Ensure that both nodes start with zero ban score
wait_for_banscore(node0, id_p2p_node0, 0)
wait_for_banscore(mn1.node, id_p2p_mn1, 0)
self.log.info("Check that normal node doesn't respond to qgetdata "
"and does bump our score")
p2p_node0.test_qgetdata(qgetdata_all, response_expected=False)
wait_for_banscore(node0, id_p2p_node0, 10)
# The masternode should not respond to qgetdata for non-masternode connections
self.log.info("Check that masternode doesn't respond to "
"non-masternode connection. Doesn't bump score.")
p2p_mn1.test_qgetdata(qgetdata_all, response_expected=False)
wait_for_banscore(mn1.node, id_p2p_mn1, 10)
# Open a fake MNAUTH authenticated P2P connection to the masternode to allow qgetdata
node0.disconnect_p2ps()
mn1.node.disconnect_p2ps()
p2p_mn1 = p2p_connection(mn1.node)
id_p2p_mn1 = get_mininode_id(mn1.node)
mnauth(mn1.node, id_p2p_mn1, fake_mnauth_1[0], fake_mnauth_1[1])
# The masternode should now respond to qgetdata requests
self.log.info("Request verification vector")
p2p_mn1.test_qgetdata(qgetdata_vvec, 0, self.llmq_threshold, 0)
wait_for_banscore(mn1.node, id_p2p_mn1, 0)
# Note: our banscore is bumped as we are requesting too rapidly,
# however the node still returns the data
self.log.info("Request encrypted contributions")
p2p_mn1.test_qgetdata(qgetdata_contributions, 0, 0, self.llmq_size)
wait_for_banscore(mn1.node, id_p2p_mn1, 25)
# Request both
# Note: our banscore is bumped as we are requesting too rapidly,
# however the node still returns the data
self.log.info("Request both")
p2p_mn1.test_qgetdata(qgetdata_all, 0, self.llmq_threshold, self.llmq_size)
wait_for_banscore(mn1.node, id_p2p_mn1, 50)
mn1.node.disconnect_p2ps()
self.log.info("Test ban score increase for invalid / unexpected QDATA")
p2p_mn1 = p2p_connection(mn1.node)
p2p_mn2 = p2p_connection(mn2.node)
id_p2p_mn1 = get_mininode_id(mn1.node)
id_p2p_mn2 = get_mininode_id(mn2.node)
mnauth(mn1.node, id_p2p_mn1, fake_mnauth_1[0], fake_mnauth_1[1])
mnauth(mn2.node, id_p2p_mn2, fake_mnauth_2[0], fake_mnauth_2[1])
wait_for_banscore(mn1.node, id_p2p_mn1, 0)
p2p_mn2.test_qgetdata(qgetdata_all, 0, self.llmq_threshold, self.llmq_size)
qdata_valid = p2p_mn2.get_qdata()
# - Not requested
p2p_mn1.send_message(qdata_valid)
time.sleep(1)
wait_for_banscore(mn1.node, id_p2p_mn1, 10)
# - Already received
force_request_expire()
assert mn1.node.quorum("getdata", id_p2p_mn1, 100, quorum_hash, 0x03, mn1.proTxHash)
p2p_mn1.wait_for_qgetdata()
p2p_mn1.send_message(qdata_valid)
time.sleep(1)
p2p_mn1.send_message(qdata_valid)
wait_for_banscore(mn1.node, id_p2p_mn1, 20)
# - Not like requested
force_request_expire()
assert mn1.node.quorum("getdata", id_p2p_mn1, 100, quorum_hash, 0x03, mn1.proTxHash)
p2p_mn1.wait_for_qgetdata()
qdata_invalid_request = qdata_valid
qdata_invalid_request.data_mask = 2
p2p_mn1.send_message(qdata_invalid_request)
wait_for_banscore(mn1.node, id_p2p_mn1, 30)
# - Invalid verification vector
force_request_expire()
assert mn1.node.quorum("getdata", id_p2p_mn1, 100, quorum_hash, 0x03, mn1.proTxHash)
p2p_mn1.wait_for_qgetdata()
qdata_invalid_vvec = qdata_valid
qdata_invalid_vvec.quorum_vvec.pop()
p2p_mn1.send_message(qdata_invalid_vvec)
wait_for_banscore(mn1.node, id_p2p_mn1, 40)
# - Invalid contributions
force_request_expire()
assert mn1.node.quorum("getdata", id_p2p_mn1, 100, quorum_hash, 0x03, mn1.proTxHash)
p2p_mn1.wait_for_qgetdata()
qdata_invalid_contribution = qdata_valid
qdata_invalid_contribution.enc_contributions.pop()
p2p_mn1.send_message(qdata_invalid_contribution)
wait_for_banscore(mn1.node, id_p2p_mn1, 50)
mn1.node.disconnect_p2ps()
mn2.node.disconnect_p2ps()
self.log.info("Test all available error codes")
p2p_mn1 = p2p_connection(mn1.node)
id_p2p_mn1 = get_mininode_id(mn1.node)
mnauth(mn1.node, id_p2p_mn1, fake_mnauth_1[0], fake_mnauth_1[1])
qgetdata_invalid_type = msg_qgetdata(quorum_hash_int, 105, 0x01, protx_hash_int)
qgetdata_invalid_block = msg_qgetdata(protx_hash_int, 100, 0x01, protx_hash_int)
qgetdata_invalid_quorum = msg_qgetdata(int(mn1.node.getblockhash(0), 16), 100, 0x01, protx_hash_int)
qgetdata_invalid_no_member = msg_qgetdata(quorum_hash_int, 100, 0x02, quorum_hash_int)
p2p_mn1.test_qgetdata(qgetdata_invalid_type, QUORUM_TYPE_INVALID)
p2p_mn1.test_qgetdata(qgetdata_invalid_block, QUORUM_BLOCK_NOT_FOUND)
p2p_mn1.test_qgetdata(qgetdata_invalid_quorum, QUORUM_NOT_FOUND)
p2p_mn1.test_qgetdata(qgetdata_invalid_no_member, MASTERNODE_IS_NO_MEMBER)
# The last two error case require the node to miss its DKG data so we just reindex the node.
mn1.node.disconnect_p2ps()
self.restart_mn(mn1, reindex=True)
# Re-connect to the masternode
p2p_mn1 = p2p_connection(mn1.node)
p2p_mn2 = p2p_connection(mn2.node)
id_p2p_mn1 = get_mininode_id(mn1.node)
id_p2p_mn2 = get_mininode_id(mn2.node)
assert id_p2p_mn1 is not None
assert id_p2p_mn2 is not None
mnauth(mn1.node, id_p2p_mn1, fake_mnauth_1[0], fake_mnauth_1[1])
mnauth(mn2.node, id_p2p_mn2, fake_mnauth_2[0], fake_mnauth_2[1])
# Validate the DKG data is missing
p2p_mn1.test_qgetdata(qgetdata_vvec, QUORUM_VERIFICATION_VECTOR_MISSING)
p2p_mn1.test_qgetdata(qgetdata_contributions, ENCRYPTED_CONTRIBUTIONS_MISSING)
self.log.info("Test DKG data recovery with QDATA")
# Now that mn1 is missing its DKG data try to recover it by querying the data from mn2 and then sending it
# to mn1 with a direct QDATA message.
#
# mininode - QGETDATA -> mn2 - QDATA -> mininode - QDATA -> mn1
#
# However, mn1 only accepts self requested QDATA messages, that's why we trigger mn1 - QGETDATA -> mininode
# via the RPC command "quorum getdata".
#
# Get the required DKG data for mn1
p2p_mn2.test_qgetdata(qgetdata_all, 0, self.llmq_threshold, self.llmq_size)
# Trigger mn1 - QGETDATA -> p2p_mn1
assert mn1.node.quorum("getdata", id_p2p_mn1, 100, quorum_hash, 0x03, mn1.proTxHash)
# Wait until mn1 sent the QGETDATA to p2p_mn1
p2p_mn1.wait_for_qgetdata()
# Send the QDATA received from mn2 to mn1
p2p_mn1.send_message(p2p_mn2.get_qdata())
# Now mn1 should have its data back!
self.wait_for_quorum_data([mn1], 100, quorum_hash, recover=False)
# Restart one more time and make sure data gets saved to db
mn1.node.disconnect_p2ps()
mn2.node.disconnect_p2ps()
self.restart_mn(mn1)
self.wait_for_quorum_data([mn1], 100, quorum_hash, recover=False)
# Test request limiting / banscore increase
def test_request_limit():
def test_send_from_two_to_one(send_1, expected_score_1, send_2, expected_score_2, clear_requests=False):
if clear_requests:
force_request_expire()
if send_1:
p2p_mn3_1.test_qgetdata(qgetdata_vvec, 0, self.llmq_threshold, 0)
if send_2:
p2p_mn3_2.test_qgetdata(qgetdata_vvec, 0, self.llmq_threshold, 0)
wait_for_banscore(mn3.node, id_p2p_mn3_1, expected_score_1)
wait_for_banscore(mn3.node, id_p2p_mn3_2, expected_score_2)
self.log.info("Test request limiting / banscore increases")
p2p_mn1 = p2p_connection(mn1.node)
id_p2p_mn1 = get_mininode_id(mn1.node)
mnauth(mn1.node, id_p2p_mn1, fake_mnauth_1[0], fake_mnauth_1[1])
p2p_mn1.test_qgetdata(qgetdata_vvec, 0, self.llmq_threshold, 0)
wait_for_banscore(mn1.node, id_p2p_mn1, 0)
force_request_expire(299) # This shouldn't clear requests, next request should bump score
p2p_mn1.test_qgetdata(qgetdata_vvec, 0, self.llmq_threshold, 0)
wait_for_banscore(mn1.node, id_p2p_mn1, 25)
force_request_expire(1) # This should clear the requests now, next request should not bump score
p2p_mn1.test_qgetdata(qgetdata_vvec, 0, self.llmq_threshold, 0)
wait_for_banscore(mn1.node, id_p2p_mn1, 25)
mn1.node.disconnect_p2ps()
# Requesting one QDATA with mn1 and mn2 from mn3 should not result
# in banscore increase for either of both.
p2p_mn3_1 = p2p_connection(mn3.node, uacomment_m3_1)
p2p_mn3_2 = p2p_connection(mn3.node, uacomment_m3_2)
id_p2p_mn3_1 = get_mininode_id(mn3.node, uacomment_m3_1)
id_p2p_mn3_2 = get_mininode_id(mn3.node, uacomment_m3_2)
assert id_p2p_mn3_1 != id_p2p_mn3_2
mnauth(mn3.node, id_p2p_mn3_1, fake_mnauth_1[0], fake_mnauth_1[1])
mnauth(mn3.node, id_p2p_mn3_2, fake_mnauth_2[0], fake_mnauth_2[1])
# Now try some {mn1, mn2} - QGETDATA -> mn3 combinations to make
# sure request limit works connection based
test_send_from_two_to_one(False, 0, True, 0, True)
test_send_from_two_to_one(True, 0, True, 25)
test_send_from_two_to_one(True, 25, False, 25)
test_send_from_two_to_one(False, 25, True, 25, True)
test_send_from_two_to_one(True, 25, True, 50)
test_send_from_two_to_one(True, 50, True, 75)
test_send_from_two_to_one(True, 50, True, 75, True)
test_send_from_two_to_one(True, 75, False, 75)
test_send_from_two_to_one(False, 75, True, None)
# mn1 should still have a score of 75
wait_for_banscore(mn3.node, id_p2p_mn3_1, 75)
# mn2 should be "banned" now
wait_until(lambda: not p2p_mn3_2.is_connected, timeout=10)
mn3.node.disconnect_p2ps()
# Test that QWATCH connections are also allowed to query data but all
# QWATCH connections share one request limit slot
def test_qwatch_connections():
self.log.info("Test QWATCH connections")
force_request_expire()
p2p_mn3_1 = p2p_connection(mn3.node, uacomment_m3_1)
p2p_mn3_2 = p2p_connection(mn3.node, uacomment_m3_2)
id_p2p_mn3_1 = get_mininode_id(mn3.node, uacomment_m3_1)
id_p2p_mn3_2 = get_mininode_id(mn3.node, uacomment_m3_2)
assert id_p2p_mn3_1 != id_p2p_mn3_2
wait_for_banscore(mn3.node, id_p2p_mn3_1, 0)
wait_for_banscore(mn3.node, id_p2p_mn3_2, 0)
# Send QWATCH for both connections
p2p_mn3_1.send_message(msg_qwatch())
p2p_mn3_2.send_message(msg_qwatch())
# Now send alternating and make sure they share the same request limit
p2p_mn3_1.test_qgetdata(qgetdata_all, 0, self.llmq_threshold, self.llmq_size)
wait_for_banscore(mn3.node, id_p2p_mn3_1, 0)
p2p_mn3_2.test_qgetdata(qgetdata_all, 0, self.llmq_threshold, self.llmq_size)
wait_for_banscore(mn3.node, id_p2p_mn3_2, 25)
p2p_mn3_1.test_qgetdata(qgetdata_all, 0, self.llmq_threshold, self.llmq_size)
wait_for_banscore(mn3.node, id_p2p_mn3_1, 25)
mn3.node.disconnect_p2ps()
def test_watchquorums():
self.log.info("Test -watchquorums support")
for extra_args in [[], ["-watchquorums"]]:
self.restart_node(0, self.extra_args[0] + extra_args)
for i in range(self.num_nodes - 1):
connect_nodes(node0, i + 1)
p2p_node0 = p2p_connection(node0)
p2p_mn2 = p2p_connection(mn2.node)
id_p2p_node0 = get_mininode_id(node0)
id_p2p_mn2 = get_mininode_id(mn2.node)
mnauth(node0, id_p2p_node0, fake_mnauth_1[0], fake_mnauth_1[1])
mnauth(mn2.node, id_p2p_mn2, fake_mnauth_2[0], fake_mnauth_2[1])
p2p_mn2.test_qgetdata(qgetdata_all, 0, self.llmq_threshold, self.llmq_size)
assert node0.quorum("getdata", id_p2p_node0, 100, quorum_hash, 0x03, mn1.proTxHash)
p2p_node0.wait_for_qgetdata()
p2p_node0.send_message(p2p_mn2.get_qdata())
wait_for_banscore(node0, id_p2p_node0, (1 - len(extra_args)) * 10)
node0.disconnect_p2ps()
mn2.node.disconnect_p2ps()
def test_rpc_quorum_getdata_protx_hash():
self.log.info("Test optional proTxHash of `quorum getdata`")
assert_raises_rpc_error(-8, "proTxHash missing",
mn1.node.quorum, "getdata", 0, 100, quorum_hash, 0x02)
assert_raises_rpc_error(-8, "proTxHash invalid",
mn1.node.quorum, "getdata", 0, 100, quorum_hash, 0x03,
"0000000000000000000000000000000000000000000000000000000000000000")
# Enable DKG and disable ChainLocks
self.nodes[0].spork("SPORK_17_QUORUM_DKG_ENABLED", 0)
self.nodes[0].spork("SPORK_19_CHAINLOCKS_ENABLED", 4070908800)
self.wait_for_sporks_same()
quorum_hash = self.mine_quorum()
node0 = self.nodes[0]
mn1 = self.mninfo[0]
mn2 = self.mninfo[1]
mn3 = self.mninfo[2]
# Convert the hex values into integer values
quorum_hash_int = int(quorum_hash, 16)
protx_hash_int = int(mn1.proTxHash, 16)
# Valid requests
qgetdata_vvec = msg_qgetdata(quorum_hash_int, 100, 0x01, protx_hash_int)
qgetdata_contributions = msg_qgetdata(quorum_hash_int, 100, 0x02, protx_hash_int)
qgetdata_all = msg_qgetdata(quorum_hash_int, 100, 0x03, protx_hash_int)
test_basics()
test_request_limit()
test_qwatch_connections()
test_watchquorums()
test_rpc_quorum_getdata_protx_hash()
if __name__ == '__main__':
QuorumDataMessagesTest().main()