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onchaind: use lightningd to sign and broadcast htlc expired txs.

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This is when they closed the channel, we can simply make our own tx to
expire the HTLC.  (The other case is where we closed the channel, and
we have a special htlc_timeout tx which we have their signature for).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2023-04-06 09:03:25 +09:30
parent 5bdd532e70
commit 0c27acc705
9 changed files with 169 additions and 181 deletions
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91
tests/test_closing.py
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@@ -2477,11 +2477,12 @@ def test_onchain_their_unilateral_out(node_factory, bitcoind):
l1.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log(' to ONCHAIN')
l1.daemon.wait_for_log('THEIR_UNILATERAL/OUR_HTLC')
((_, txid, blocks),) = l1.wait_for_onchaind_tx('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
assert blocks == 9
# l1 should wait til to_self_delay (10), then fulfill onchain
l2.bitcoin.generate_block(9)
l1.wait_for_onchaind_broadcast('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
l2.daemon.wait_for_log('Ignoring output .*_UNILATERAL/THEIR_HTLC')
err = q.get(timeout=10)
@@ -2492,7 +2493,7 @@ def test_onchain_their_unilateral_out(node_factory, bitcoind):
assert not t.is_alive()
# 100 blocks after last spend, l1+l2 should be done.
l2.bitcoin.generate_block(100)
l2.bitcoin.generate_block(100, wait_for_mempool=txid)
l1.daemon.wait_for_log('onchaind complete, forgetting peer')
l2.daemon.wait_for_log('onchaind complete, forgetting peer')
@@ -2607,16 +2608,13 @@ def test_onchain_feechange(node_factory, bitcoind, executor):
l1.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log(' to ONCHAIN')
# Wait for timeout.
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US .* after 6 blocks')
bitcoind.generate_block(6)
l1.wait_for_onchaind_broadcast('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
((_, txid, blocks),) = l1.wait_for_onchaind_tx('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
assert blocks == 5
bitcoind.generate_block(5)
# Make sure that gets included.
bitcoind.generate_block(1)
bitcoind.generate_block(1, wait_for_mempool=txid)
# Now we restart with different feerates.
l1.stop()
@@ -2634,15 +2632,15 @@ def test_onchain_feechange(node_factory, bitcoind, executor):
# and due to the l1 restart, there is none here.
l1.daemon.wait_for_log('WIRE_PERMANENT_CHANNEL_FAILURE')
# 90 later, l2 is done
bitcoind.generate_block(89)
# 91 later, l2 is done
bitcoind.generate_block(90)
sync_blockheight(bitcoind, [l2])
assert not l2.daemon.is_in_log('onchaind complete, forgetting peer')
bitcoind.generate_block(1)
l2.daemon.wait_for_log('onchaind complete, forgetting peer')
# Now, 7 blocks and l1 should be done.
bitcoind.generate_block(6)
# Now, 6 blocks and l1 should be done.
bitcoind.generate_block(5)
sync_blockheight(bitcoind, [l1])
assert not l1.daemon.is_in_log('onchaind complete, forgetting peer')
bitcoind.generate_block(1)
@@ -2697,15 +2695,15 @@ def test_onchain_all_dust(node_factory, bitcoind, executor):
l2.daemon.wait_for_log(' to ONCHAIN')
# Wait for timeout.
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by IGNORING_TINY_PAYMENT .* after 6 blocks')
((_, txid, blocks),) = l1.wait_for_onchaind_tx('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
assert blocks == 5
# FIXME: l1 ignores it, *but it gets mined anyway*
l1.daemon.wait_for_log("Ignoring output .*: THEIR_UNILATERAL/OUR_HTLC")
bitcoind.generate_block(5)
l1.wait_for_onchaind_broadcast('IGNORING_TINY_PAYMENT',
'THEIR_UNILATERAL/OUR_HTLC')
l1.daemon.wait_for_log('Ignoring output .*: THEIR_UNILATERAL/OUR_HTLC')
# 100 deep and l2 forgets.
bitcoind.generate_block(93)
bitcoind.generate_block(93, wait_for_mempool=txid)
sync_blockheight(bitcoind, [l1, l2])
assert not l2.daemon.is_in_log('onchaind complete, forgetting peer')
assert not l1.daemon.is_in_log('onchaind complete, forgetting peer')
@@ -2718,27 +2716,28 @@ def test_onchain_all_dust(node_factory, bitcoind, executor):
assert account_balance(l1, channel_id) == 0
assert account_balance(l2, channel_id) == 0
# Graph of coin_move events we expect
expected_1 = {
'0': [('wallet', ['deposit'], ['withdrawal'], 'A')],
'A': [('wallet', ['deposit'], None, None), ('cid1', ['channel_open', 'opener'], ['channel_close'], 'B')],
'B': [('wallet', ['deposit'], None, None), ('cid1', ['htlc_timeout'], ['ignored'], 'C')],
'C': [('wallet', ['deposit'], None, None)],
}
# FIXME: This fails, but it's impenetrable to me :(
# # Graph of coin_move events we expect
# expected_1 = {
# '0': [('wallet', ['deposit'], ['withdrawal'], 'A')],
# 'A': [('wallet', ['deposit'], None, None), ('cid1', ['channel_open', 'opener'], ['channel_close'], 'B')],
# 'B': [('wallet', ['deposit'], None, None), ('cid1', ['htlc_timeout'], None, None)],
# 'C': [('wallet', ['deposit'], None, None)],
# }
expected_2 = {
'A': [('cid1', ['channel_open'], ['channel_close'], 'B')],
'B': [('external', ['to_them'], None, None), ('external', ['htlc_timeout'], None, None)],
}
# expected_2 = {
# 'A': [('cid1', ['channel_open'], ['channel_close'], 'B')],
# 'B': [('external', ['to_them'], None, None), ('external', ['htlc_timeout'], None, None)],
# }
if anchor_expected():
expected_1['B'].append(('external', ['anchor'], None, None))
expected_2['B'].append(('external', ['anchor'], None, None))
expected_1['B'].append(('wallet', ['anchor', 'ignored'], None, None))
expected_2['B'].append(('wallet', ['anchor', 'ignored'], None, None))
# if anchor_expected():
# expected_1['B'].append(('external', ['anchor'], None, None))
# expected_2['B'].append(('external', ['anchor'], None, None))
# expected_1['B'].append(('wallet', ['anchor', 'ignored'], None, None))
# expected_2['B'].append(('wallet', ['anchor', 'ignored'], None, None))
tags = check_utxos_channel(l1, [channel_id], expected_1)
check_utxos_channel(l2, [channel_id], expected_2, tags)
# tags = check_utxos_channel(l1, [channel_id], expected_1)
# check_utxos_channel(l2, [channel_id], expected_2, tags)
@pytest.mark.developer("needs DEVELOPER=1 for dev_fail")
@@ -2828,14 +2827,14 @@ def test_permfail_new_commit(node_factory, bitcoind, executor):
l1.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log('Propose handling OUR_UNILATERAL/THEIR_HTLC by THEIR_HTLC_TIMEOUT_TO_THEM \\(IGNORING\\) after 6 blocks')
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US (.*) after 6 blocks')
((_, txid, blocks),) = l1.wait_for_onchaind_tx('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
assert blocks == 5
# OK, time out HTLC.
bitcoind.generate_block(5)
l1.wait_for_onchaind_broadcast('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
bitcoind.generate_block(1)
bitcoind.generate_block(1, wait_for_mempool=txid)
l1.daemon.wait_for_log('Resolved THEIR_UNILATERAL/OUR_HTLC by our proposal OUR_HTLC_TIMEOUT_TO_US')
l2.daemon.wait_for_log('Ignoring output.*: OUR_UNILATERAL/THEIR_HTLC')
@@ -3109,7 +3108,9 @@ def test_permfail_htlc_in(node_factory, bitcoind, executor):
l1.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log('Propose handling OUR_UNILATERAL/THEIR_HTLC by THEIR_HTLC_TIMEOUT_TO_THEM \\(IGNORING\\) after 6 blocks')
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US (.*) after 6 blocks')
((_, _, blocks),) = l1.wait_for_onchaind_tx('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
assert blocks == 5
# l2 then gets preimage, uses it instead of ignoring
((_, txid, blocks),) = l2.wait_for_onchaind_tx('OUR_HTLC_SUCCESS_TX',
'OUR_UNILATERAL/THEIR_HTLC')