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test_opening.py
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test_opening.py
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from fixtures import * # noqa: F401,F403
from fixtures import TEST_NETWORK
from pyln.client import RpcError, Millisatoshi
from utils import (
only_one, wait_for, sync_blockheight, first_channel_id, calc_lease_fee, check_coin_moves
)
from pathlib import Path
from pprint import pprint
import pytest
import re
import unittest
def find_next_feerate(node, peer):
chan = only_one(only_one(node.rpc.listpeers(peer.info['id'])['peers'])['channels'])
return chan['next_feerate']
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.openchannel('v2')
@pytest.mark.developer("requres 'dev-queryrates'")
def test_queryrates(node_factory, bitcoind):
l1, l2 = node_factory.get_nodes(2, opts={'dev-no-reconnect': None})
amount = 10 ** 6
l1.fundwallet(amount * 10)
l2.fundwallet(amount * 10)
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
with pytest.raises(RpcError, match=r'not advertising liquidity'):
l1.rpc.dev_queryrates(l2.info['id'], amount, amount * 10)
l2.rpc.call('funderupdate', {'policy': 'match',
'policy_mod': 100,
'per_channel_max_msat': '1btc',
'fuzz_percent': 0,
'lease_fee_base_msat': '2sat',
'funding_weight': 1000,
'lease_fee_basis': 140,
'channel_fee_max_base_msat': '3sat',
'channel_fee_max_proportional_thousandths': 101})
wait_for(lambda: l1.rpc.listpeers()['peers'] == [])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
result = l1.rpc.dev_queryrates(l2.info['id'], amount, amount)
assert result['our_funding_msat'] == Millisatoshi(amount * 1000)
assert result['their_funding_msat'] == Millisatoshi(amount * 1000)
assert result['funding_weight'] == 1000
assert result['lease_fee_base_msat'] == Millisatoshi(2000)
assert result['lease_fee_basis'] == 140
assert result['channel_fee_max_base_msat'] == Millisatoshi(3000)
assert result['channel_fee_max_proportional_thousandths'] == 101
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-disconnect")
@pytest.mark.openchannel('v1') # Mixed v1 + v2, v2 manually turned on
def test_multifunding_v2_best_effort(node_factory, bitcoind):
'''
Check that best_effort flag works.
'''
disconnects = ["-WIRE_INIT",
"-WIRE_ACCEPT_CHANNEL",
"-WIRE_FUNDING_SIGNED"]
l1 = node_factory.get_node(options={'experimental-dual-fund': None},
allow_warning=True,
may_reconnect=True)
l2 = node_factory.get_node(options={'experimental-dual-fund': None},
allow_warning=True,
may_reconnect=True)
l3 = node_factory.get_node(disconnect=disconnects)
l4 = node_factory.get_node()
l1.fundwallet(2000000)
destinations = [{"id": '{}@localhost:{}'.format(l2.info['id'], l2.port),
"amount": 50000},
{"id": '{}@localhost:{}'.format(l3.info['id'], l3.port),
"amount": 50000},
{"id": '{}@localhost:{}'.format(l4.info['id'], l4.port),
"amount": 50000}]
for i, d in enumerate(disconnects):
failed_sign = d == "-WIRE_FUNDING_SIGNED"
# Should succeed due to best-effort flag.
min_channels = 1 if failed_sign else 2
l1.rpc.multifundchannel(destinations, minchannels=min_channels)
bitcoind.generate_block(6, wait_for_mempool=1)
# l3 should fail to have channels; l2 also fails on last attempt
node_list = [l1, l4] if failed_sign else [l1, l2, l4]
for node in node_list:
node.daemon.wait_for_log(r'to CHANNELD_NORMAL')
# There should be working channels to l2 and l4 for every run
# but the last
working_chans = [l4] if failed_sign else [l2, l4]
for ldest in working_chans:
inv = ldest.rpc.invoice(5000, 'i{}'.format(i), 'i{}'.format(i))['bolt11']
l1.rpc.pay(inv)
# Function to find the SCID of the channel that is
# currently open.
# Cannot use LightningNode.get_channel_scid since
# it assumes the *first* channel found is the one
# wanted, but in our case we close channels and
# open again, so multiple channels may remain
# listed.
def get_funded_channel_scid(n1, n2):
peers = n1.rpc.listpeers(n2.info['id'])['peers']
assert len(peers) == 1
peer = peers[0]
channels = peer['channels']
assert channels
for c in channels:
state = c['state']
if state in ('DUALOPEND_AWAITING_LOCKIN', 'CHANNELD_AWAITING_LOCKIN', 'CHANNELD_NORMAL'):
return c['short_channel_id']
assert False
# Now close channels to l2 and l4, for the next run.
if not failed_sign:
l1.rpc.close(get_funded_channel_scid(l1, l2))
l1.rpc.close(get_funded_channel_scid(l1, l4))
for node in node_list:
node.daemon.wait_for_log(r'to CLOSINGD_COMPLETE')
# With 2 down, it will fail to fund channel
l2.stop()
l3.stop()
with pytest.raises(RpcError, match=r'(Connection refused|Bad file descriptor)'):
l1.rpc.multifundchannel(destinations, minchannels=2)
# This works though.
l1.rpc.multifundchannel(destinations, minchannels=1)
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-disconnect")
@pytest.mark.openchannel('v2')
def test_v2_open_sigs_restart(node_factory, bitcoind):
disconnects_1 = ['-WIRE_TX_SIGNATURES']
disconnects_2 = ['+WIRE_TX_SIGNATURES']
l1, l2 = node_factory.get_nodes(2,
opts=[{'disconnect': disconnects_1,
'may_reconnect': True},
{'disconnect': disconnects_2,
'may_reconnect': True}])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
# Fund the channel, should appear to finish ok even though the
# peer fails
with pytest.raises(RpcError):
l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = first_channel_id(l1, l2)
log = l1.daemon.is_in_log('{} psbt'.format(chan_id))
assert log
psbt = re.search("psbt (.*)", log).group(1)
l1.daemon.wait_for_log('Peer has reconnected, state DUALOPEND_OPEN_INIT')
try:
# FIXME: why do we need to retry signed?
l1.rpc.openchannel_signed(chan_id, psbt)
except RpcError:
pass
l2.daemon.wait_for_log('Broadcasting funding tx')
txid = l2.rpc.listpeers(l1.info['id'])['peers'][0]['channels'][0]['funding_txid']
bitcoind.generate_block(6, wait_for_mempool=txid)
# Make sure we're ok.
l1.daemon.wait_for_log(r'to CHANNELD_NORMAL')
l2.daemon.wait_for_log(r'to CHANNELD_NORMAL')
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-disconnect")
@pytest.mark.openchannel('v2')
def test_v2_open_sigs_restart_while_dead(node_factory, bitcoind):
# Same thing as above, except the transaction mines
# while we're asleep
disconnects_1 = ['-WIRE_TX_SIGNATURES']
disconnects_2 = ['+WIRE_TX_SIGNATURES']
l1, l2 = node_factory.get_nodes(2,
opts=[{'disconnect': disconnects_1,
'may_reconnect': True,
'may_fail': True},
{'disconnect': disconnects_2,
'may_reconnect': True,
'may_fail': True}])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
# Fund the channel, should appear to finish ok even though the
# peer fails
with pytest.raises(RpcError):
l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = first_channel_id(l1, l2)
log = l1.daemon.is_in_log('{} psbt'.format(chan_id))
assert log
psbt = re.search("psbt (.*)", log).group(1)
l1.daemon.wait_for_log('Peer has reconnected, state DUALOPEND_OPEN_INIT')
try:
# FIXME: why do we need to retry signed?
l1.rpc.openchannel_signed(chan_id, psbt)
except RpcError:
pass
l2.daemon.wait_for_log('Broadcasting funding tx')
l2.daemon.wait_for_log('sendrawtx exit 0')
l1.stop()
l2.stop()
bitcoind.generate_block(6)
l1.restart()
l2.restart()
# Make sure we're ok.
l2.daemon.wait_for_log(r'to CHANNELD_NORMAL')
l1.daemon.wait_for_log(r'to CHANNELD_NORMAL')
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.openchannel('v2')
def test_v2_rbf_single(node_factory, bitcoind, chainparams):
l1, l2 = node_factory.get_nodes(2, opts={'wumbo': None})
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
next_feerate = find_next_feerate(l1, l2)
# Check that feerate info is correct
info_1 = only_one(only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels'])
assert info_1['initial_feerate'] == info_1['last_feerate']
rate = int(info_1['last_feerate'][:-5])
assert int(info_1['next_feerate'][:-5]) == rate * 65 // 64
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
# Do the bump
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
# Check that feerate info has incremented
info_2 = only_one(only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels'])
assert info_1['initial_feerate'] == info_2['initial_feerate']
assert info_1['next_feerate'] == info_2['last_feerate']
rate = int(info_2['last_feerate'][:-5])
assert int(info_2['next_feerate'][:-5]) == rate * 65 // 64
# Sign our inputs, and continue
signed_psbt = l1.rpc.signpsbt(update['psbt'])['signed_psbt']
# Fails because we didn't put enough feerate in.
with pytest.raises(RpcError, match=r'insufficient fee'):
l1.rpc.openchannel_signed(chan_id, signed_psbt)
# Do it again, with a higher feerate
info_2 = only_one(only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels'])
assert info_1['initial_feerate'] == info_2['initial_feerate']
assert info_1['next_feerate'] == info_2['last_feerate']
rate = int(info_2['last_feerate'][:-5])
assert int(info_2['next_feerate'][:-5]) == rate * 65 // 64
# We 4x the feerate to beat the min-relay fee
next_rate = '{}perkw'.format(rate * 65 // 64 * 4)
# Gotta unreserve the psbt and re-reserve with higher feerate
l1.rpc.unreserveinputs(initpsbt['psbt'])
initpsbt = l1.rpc.utxopsbt(chan_amount, next_rate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
# Do the bump+sign
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'],
funding_feerate=next_rate)
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
signed_psbt = l1.rpc.signpsbt(update['psbt'])['signed_psbt']
l1.rpc.openchannel_signed(chan_id, signed_psbt)
bitcoind.generate_block(1)
sync_blockheight(bitcoind, [l1])
l1.daemon.wait_for_log(' to CHANNELD_NORMAL')
# Check that feerate info is gone
info_1 = only_one(only_one(l1.rpc.listpeers(l2.info['id'])['peers'])['channels'])
assert 'initial_feerate' not in info_1
assert 'last_feerate' not in info_1
assert 'next_feerate' not in info_1
# Shut l2 down, force close the channel.
l2.stop()
resp = l1.rpc.close(l2.info['id'], unilateraltimeout=1)
assert resp['type'] == 'unilateral'
l1.daemon.wait_for_log(' to CHANNELD_SHUTTING_DOWN')
l1.daemon.wait_for_log('sendrawtx exit 0')
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.openchannel('v2')
def test_v2_rbf_liquidity_ad(node_factory, bitcoind, chainparams):
opts = {'funder-policy': 'match', 'funder-policy-mod': 100,
'lease-fee-base-sat': '100sat', 'lease-fee-basis': 100,
'may_reconnect': True}
l1, l2 = node_factory.get_nodes(2, opts=opts)
# what happens when we RBF?
feerate = 2000
amount = 500000
l1.fundwallet(20000000)
l2.fundwallet(20000000)
# l1 leases a channel from l2
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
rates = l1.rpc.dev_queryrates(l2.info['id'], amount, amount)
wait_for(lambda: l1.rpc.listpeers()['peers'] == [])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
chan_id = l1.rpc.fundchannel(l2.info['id'], amount, request_amt=amount,
feerate='{}perkw'.format(feerate),
compact_lease=rates['compact_lease'])['channel_id']
vins = [x for x in l1.rpc.listfunds()['outputs'] if x['reserved']]
assert only_one(vins)
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['output'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
est_fees = calc_lease_fee(amount, feerate, rates)
# This should be the accepter's amount
fundings = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['funding']
assert Millisatoshi(amount * 1000) == fundings['remote_funds_msat']
assert Millisatoshi(est_fees + amount * 1000) == fundings['local_funds_msat']
assert Millisatoshi(est_fees) == fundings['fee_paid_msat']
assert 'fee_rcvd_msat' not in fundings
# rbf the lease with a higher amount
rate = int(find_next_feerate(l1, l2)[:-5])
# We 4x the feerate to beat the min-relay fee
next_feerate = '{}perkw'.format(rate * 4)
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)['psbt']
# do the bump
bump = l1.rpc.openchannel_bump(chan_id, amount, initpsbt,
funding_feerate=next_feerate)
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
# Sign our inputs, and continue
signed_psbt = l1.rpc.signpsbt(update['psbt'])['signed_psbt']
l1.rpc.openchannel_signed(chan_id, signed_psbt)
# what happens when the channel opens?
bitcoind.generate_block(6)
l1.daemon.wait_for_log('to CHANNELD_NORMAL')
# This should be the accepter's amount
fundings = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['funding']
# FIXME: The lease goes away :(
assert Millisatoshi(0) == Millisatoshi(fundings['remote_funds_msat'])
wait_for(lambda: [c['active'] for c in l1.rpc.listchannels(l1.get_channel_scid(l2))['channels']] == [True, True])
# send some payments, mine a block or two
inv = l2.rpc.invoice(10**4, '1', 'no_1')
l1.rpc.pay(inv['bolt11'])
# l2 attempts to close a channel that it leased, should succeed
# (channel isnt leased)
l2.rpc.close(l1.get_channel_scid(l2))
l1.daemon.wait_for_log('State changed from CLOSINGD_SIGEXCHANGE to CLOSINGD_COMPLETE')
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-no-reconnect")
@pytest.mark.openchannel('v2')
def test_v2_rbf_multi(node_factory, bitcoind, chainparams):
l1, l2 = node_factory.get_nodes(2,
opts={'may_reconnect': True,
'dev-no-reconnect': None,
'allow_warning': True})
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
# Attempt to do abort, should fail since we've
# already gotten an inflight
with pytest.raises(RpcError):
l1.rpc.openchannel_abort(chan_id)
rate = int(find_next_feerate(l1, l2)[:-5])
# We 4x the feerate to beat the min-relay fee
next_feerate = '{}perkw'.format(rate * 4)
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
# Do the bump
bump = l1.rpc.openchannel_bump(chan_id, chan_amount,
initpsbt['psbt'],
funding_feerate=next_feerate)
# Abort this open attempt! We will re-try
aborted = l1.rpc.openchannel_abort(chan_id)
assert not aborted['channel_canceled']
wait_for(lambda: only_one(l1.rpc.listpeers()['peers'])['connected'] is False)
# Do the bump, again, same feerate
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
bump = l1.rpc.openchannel_bump(chan_id, chan_amount,
initpsbt['psbt'],
funding_feerate=next_feerate)
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
# Sign our inputs, and continue
signed_psbt = l1.rpc.signpsbt(update['psbt'])['signed_psbt']
l1.rpc.openchannel_signed(chan_id, signed_psbt)
# We 2x the feerate to beat the min-relay fee
rate = int(find_next_feerate(l1, l2)[:-5])
next_feerate = '{}perkw'.format(rate * 2)
# Initiate another RBF, double the channel amount this time
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount * 2, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
# Do the bump
bump = l1.rpc.openchannel_bump(chan_id, chan_amount * 2,
initpsbt['psbt'],
funding_feerate=next_feerate)
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
# Sign our inputs, and continue
signed_psbt = l1.rpc.signpsbt(update['psbt'])['signed_psbt']
l1.rpc.openchannel_signed(chan_id, signed_psbt)
bitcoind.generate_block(1)
sync_blockheight(bitcoind, [l1])
l1.daemon.wait_for_log(' to CHANNELD_NORMAL')
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-disconnect")
@pytest.mark.openchannel('v2')
def test_rbf_reconnect_init(node_factory, bitcoind, chainparams):
disconnects = ['-WIRE_INIT_RBF',
'+WIRE_INIT_RBF']
l1, l2 = node_factory.get_nodes(2,
opts=[{'disconnect': disconnects,
'may_reconnect': True},
{'may_reconnect': True}])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
next_feerate = find_next_feerate(l1, l2)
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
# Do the bump!?
for d in disconnects:
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
with pytest.raises(RpcError):
l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
assert l1.rpc.getpeer(l2.info['id']) is not None
# This should succeed
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-disconnect")
@pytest.mark.openchannel('v2')
def test_rbf_reconnect_ack(node_factory, bitcoind, chainparams):
disconnects = ['-WIRE_ACK_RBF',
'+WIRE_ACK_RBF']
l1, l2 = node_factory.get_nodes(2,
opts=[{'may_reconnect': True},
{'disconnect': disconnects,
'may_reconnect': True}])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
next_feerate = find_next_feerate(l1, l2)
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
# Do the bump!?
for d in disconnects:
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
with pytest.raises(RpcError):
l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
assert l1.rpc.getpeer(l2.info['id']) is not None
# This should succeed
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-disconnect")
@pytest.mark.openchannel('v2')
def test_rbf_reconnect_tx_construct(node_factory, bitcoind, chainparams):
disconnects = ['=WIRE_TX_ADD_INPUT', # Initial funding succeeds
'-WIRE_TX_ADD_INPUT',
'+WIRE_TX_ADD_INPUT',
'-WIRE_TX_ADD_OUTPUT',
'+WIRE_TX_ADD_OUTPUT',
'-WIRE_TX_COMPLETE',
'+WIRE_TX_COMPLETE']
l1, l2 = node_factory.get_nodes(2,
opts=[{'disconnect': disconnects,
'may_reconnect': True,
'dev-no-reconnect': None},
{'may_reconnect': True,
'dev-no-reconnect': None}])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
next_feerate = find_next_feerate(l1, l2)
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
# Run through TX_ADD wires
for d in disconnects[1:-2]:
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
with pytest.raises(RpcError):
l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
wait_for(lambda: l1.rpc.getpeer(l2.info['id'])['connected'] is False)
# Now we finish off the completes failure check
for d in disconnects[-2:]:
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
with pytest.raises(RpcError):
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
wait_for(lambda: l1.rpc.getpeer(l2.info['id'])['connected'] is False)
# Now we succeed
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.developer("uses dev-disconnect")
@pytest.mark.openchannel('v2')
def test_rbf_reconnect_tx_sigs(node_factory, bitcoind, chainparams):
disconnects = ['=WIRE_TX_SIGNATURES', # Initial funding succeeds
'-WIRE_TX_SIGNATURES', # When we send tx-sigs, RBF
'=WIRE_TX_SIGNATURES', # When we reconnect
'+WIRE_TX_SIGNATURES'] # When we RBF again
l1, l2 = node_factory.get_nodes(2,
opts=[{'disconnect': disconnects,
'may_reconnect': True},
{'may_reconnect': True}])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log('Broadcasting funding tx')
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
rate = int(find_next_feerate(l1, l2)[:-5])
# We 4x the feerate to beat the min-relay fee
next_feerate = '{}perkw'.format(rate * 4)
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'],
funding_feerate=next_feerate)
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
# Sign our inputs, and continue
signed_psbt = l1.rpc.signpsbt(update['psbt'])['signed_psbt']
# First time we error when we send our sigs
with pytest.raises(RpcError, match='Owning subdaemon dualopend died'):
l1.rpc.openchannel_signed(chan_id, signed_psbt)
# We reconnect and try again. feerate should have bumped
rate = int(find_next_feerate(l1, l2)[:-5])
# We 4x the feerate to beat the min-relay fee
next_feerate = '{}perkw'.format(rate * 4)
# Initiate an RBF
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
# l2 gets our sigs and broadcasts them
l2.daemon.wait_for_log('peer_in WIRE_CHANNEL_REESTABLISH')
l2.daemon.wait_for_log('peer_in WIRE_TX_SIGNATURES')
l2.daemon.wait_for_log('sendrawtx exit 0')
# Wait until we've done re-establish, if we try to
# RBF again too quickly, it'll fail since they haven't
# had time to process our sigs yet
l1.daemon.wait_for_log('peer_in WIRE_CHANNEL_REESTABLISH')
l1.daemon.wait_for_log('peer_in WIRE_TX_SIGNATURES')
# 2nd RBF
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'],
funding_feerate=next_feerate)
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
signed_psbt = l1.rpc.signpsbt(update['psbt'])['signed_psbt']
# Second time we error after we send our sigs
with pytest.raises(RpcError, match='Owning subdaemon dualopend died'):
l1.rpc.openchannel_signed(chan_id, signed_psbt)
# l2 gets our sigs
l2.daemon.wait_for_log('peer_in WIRE_TX_SIGNATURES')
l2.daemon.wait_for_log('sendrawtx exit 0')
# mine a block?
bitcoind.generate_block(1)
sync_blockheight(bitcoind, [l1])
l1.daemon.wait_for_log(' to CHANNELD_NORMAL')
# Check that they have matching funding txid
l1_funding_txid = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['funding_txid']
l2_funding_txid = only_one(only_one(l2.rpc.listpeers()['peers'])['channels'])['funding_txid']
assert l1_funding_txid == l2_funding_txid
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.openchannel('v2')
def test_rbf_no_overlap(node_factory, bitcoind, chainparams):
l1, l2 = node_factory.get_nodes(2,
opts={'allow_warning': True})
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount)
chan_id = res['channel_id']
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
next_feerate = find_next_feerate(l1, l2)
# Initiate an RBF (this grabs the non-reserved utxo, which isnt the
# one we started with)
startweight = 42 + 172 # base weight, funding output
initpsbt = l1.rpc.fundpsbt(chan_amount, next_feerate, startweight,
min_witness_weight=110,
excess_as_change=True)
# Do the bump
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
with pytest.raises(RpcError, match='No overlapping input present.'):
l1.rpc.openchannel_update(chan_id, bump['psbt'])
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.openchannel('v2')
@pytest.mark.developer("uses dev-sign-last-tx")
def test_rbf_fails_to_broadcast(node_factory, bitcoind, chainparams):
l1, l2 = node_factory.get_nodes(2,
opts={'allow_warning': True,
'may_reconnect': True})
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
# Really low feerate means that the bump wont work the first time
res = l1.rpc.fundchannel(l2.info['id'], chan_amount, feerate='253perkw')
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
inflights = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['inflight']
assert inflights[-1]['funding_txid'] in bitcoind.rpc.getrawmempool()
def run_retry():
startweight = 42 + 173
rate = int(find_next_feerate(l1, l2)[:-5])
# We 2x the feerate to beat the min-relay fee
next_feerate = '{}perkw'.format(rate * 2)
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
bump = l1.rpc.openchannel_bump(chan_id, chan_amount,
initpsbt['psbt'],
funding_feerate=next_feerate)
# We should be able to call this with while an open is progress
# but not yet committed
l1.rpc.dev_sign_last_tx(l2.info['id'])
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
return l1.rpc.signpsbt(update['psbt'])['signed_psbt']
signed_psbt = run_retry()
l1.rpc.openchannel_signed(chan_id, signed_psbt)
inflights = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['inflight']
assert inflights[-1]['funding_txid'] in bitcoind.rpc.getrawmempool()
# Restart and listpeers, used to crash
l1.restart()
l1.rpc.listpeers()
# We've restarted. Let's RBF
signed_psbt = run_retry()
l1.rpc.openchannel_signed(chan_id, signed_psbt)
inflights = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['inflight']
assert len(inflights) == 3
assert inflights[-1]['funding_txid'] in bitcoind.rpc.getrawmempool()
l1.restart()
# Are inflights the same post restart
prev_inflights = inflights
inflights = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['inflight']
assert prev_inflights == inflights
assert inflights[-1]['funding_txid'] in bitcoind.rpc.getrawmempool()
# Produce a signature for every inflight
last_txs = l1.rpc.dev_sign_last_tx(l2.info['id'])
assert len(last_txs['inflights']) == len(inflights)
for last_tx, inflight in zip(last_txs['inflights'], inflights):
assert last_tx['funding_txid'] == inflight['funding_txid']
assert last_txs['tx']
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.openchannel('v2')
def test_rbf_broadcast_close_inflights(node_factory, bitcoind, chainparams):
"""
Close a channel before it's mined, and the most recent transaction
hasn't made it to the mempool. Should publish all the commitment
transactions that we have.
"""
l1, l2 = node_factory.get_nodes(2,
opts={'allow_warning': True})
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)
res = l1.rpc.fundchannel(l2.info['id'], chan_amount, feerate='7500perkw')
chan_id = res['channel_id']
vins = bitcoind.rpc.decoderawtransaction(res['tx'])['vin']
assert(only_one(vins))
prev_utxos = ["{}:{}".format(vins[0]['txid'], vins[0]['vout'])]
# Check that we're waiting for lockin
l1.daemon.wait_for_log(' to DUALOPEND_AWAITING_LOCKIN')
inflights = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['inflight']
assert inflights[-1]['funding_txid'] in bitcoind.rpc.getrawmempool()
# Make it such that l1 and l2 cannot broadcast transactions
# (mimics failing to reach the miner with replacement)
def censoring_sendrawtx(r):
return {'id': r['id'], 'result': {}}
l1.daemon.rpcproxy.mock_rpc('sendrawtransaction', censoring_sendrawtx)
l2.daemon.rpcproxy.mock_rpc('sendrawtransaction', censoring_sendrawtx)
def run_retry():
startweight = 42 + 173
next_feerate = find_next_feerate(l1, l2)
initpsbt = l1.rpc.utxopsbt(chan_amount, next_feerate, startweight,
prev_utxos, reservedok=True,
min_witness_weight=110,
excess_as_change=True)
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
bump = l1.rpc.openchannel_bump(chan_id, chan_amount, initpsbt['psbt'])
update = l1.rpc.openchannel_update(chan_id, bump['psbt'])
assert update['commitments_secured']
return l1.rpc.signpsbt(update['psbt'])['signed_psbt']
signed_psbt = run_retry()
l1.rpc.openchannel_signed(chan_id, signed_psbt)
inflights = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['inflight']
assert inflights[-1]['funding_txid'] not in bitcoind.rpc.getrawmempool()
cmtmt_txid = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])['scratch_txid']
assert cmtmt_txid == inflights[-1]['scratch_txid']
# l2 goes offline
l2.stop()
# l1 drops to chain.
l1.daemon.rpcproxy.mock_rpc('sendrawtransaction', None)
l1.rpc.close(chan_id, 1)
l1.daemon.wait_for_logs(['Broadcasting txid {}'.format(inflights[0]['scratch_txid']),
'Broadcasting txid {}'.format(inflights[1]['scratch_txid']),
'sendrawtx exit 0',
'sendrawtx exit 25'])
assert inflights[0]['scratch_txid'] in bitcoind.rpc.getrawmempool()
assert inflights[1]['scratch_txid'] not in bitcoind.rpc.getrawmempool()
@unittest.skipIf(TEST_NETWORK != 'regtest', 'elementsd doesnt yet support PSBT features we need')
@pytest.mark.openchannel('v2')
def test_rbf_non_last_mined(node_factory, bitcoind, chainparams):
"""
What happens if a 'non-tip' RBF transaction is mined?
"""
l1, l2 = node_factory.get_nodes(2,
opts={'allow_warning': True,
'may_reconnect': True})
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
amount = 2**24
chan_amount = 100000
bitcoind.rpc.sendtoaddress(l1.rpc.newaddr()['bech32'], amount / 10**8 + 0.01)
bitcoind.generate_block(1)
# Wait for it to arrive.
wait_for(lambda: len(l1.rpc.listfunds()['outputs']) > 0)