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onchaind: fix too-eager OUR_HTLC_TIMEOUT_TX.

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With the following patch applied, we could clearly see onchaind try to
broadcast the timeout tx one block too early:

	sendrawtx exit 26, gave error code: -26?error message:?non-final (code 64)?

This is because of an out-by-one error in calculating the relative
depth required, since the out->tx_blockheight is already 1 before the
current block.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2018-03-07 10:36:57 +10:30 committed by Christian Decker
parent eb52dde5b5
commit a48c300df2
2 changed files with 18 additions and 18 deletions
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4
onchaind/onchain.c
View File

@ -367,8 +367,8 @@ static void propose_resolution_at_block(struct tracked_output *out,
/* Expiry could be in the past! */
if (block_required < out->tx_blockheight)
depth = 0;
else
depth = block_required - out->tx_blockheight;
else /* Note that out->tx_blockheight is already at depth 1 */
depth = block_required - out->tx_blockheight + 1;
propose_resolution(out, tx, depth, tx_type);
}

32
tests/test_lightningd.py
View File

@ -1695,8 +1695,8 @@ class LightningDTests(BaseLightningDTests):
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 .* in 5 blocks')
bitcoind.generate_block(5)
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US .* in 6 blocks')
bitcoind.generate_block(6)
l1.daemon.wait_for_log('sendrawtx exit 0')
@ -1720,15 +1720,15 @@ class LightningDTests(BaseLightningDTests):
# and due to the l1 restart, there is none here.
l1.daemon.wait_for_log('WIRE_PERMANENT_CHANNEL_FAILURE')
# 91 later, l2 is done
bitcoind.generate_block(90)
# 90 later, l2 is done
bitcoind.generate_block(89)
sync_blockheight([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, 6 blocks and l1 should be done.
bitcoind.generate_block(5)
# Now, 7 blocks and l1 should be done.
bitcoind.generate_block(6)
sync_blockheight([l1])
assert not l1.daemon.is_in_log('onchaind complete, forgetting peer')
bitcoind.generate_block(1)
@ -1773,8 +1773,8 @@ class LightningDTests(BaseLightningDTests):
l2.daemon.wait_for_log(' to ONCHAIN')
# Wait for timeout.
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by DONATING_TO_MINERS .* in 5 blocks')
bitcoind.generate_block(5)
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by DONATING_TO_MINERS .* in 6 blocks')
bitcoind.generate_block(6)
l1.daemon.wait_for_log('sendrawtx exit 0')
bitcoind.generate_block(1)
@ -1782,7 +1782,7 @@ class LightningDTests(BaseLightningDTests):
l1.daemon.wait_for_log('Resolved THEIR_UNILATERAL/OUR_HTLC by our proposal DONATING_TO_MINERS')
# 100 deep and l2 forgets.
bitcoind.generate_block(92)
bitcoind.generate_block(91)
sync_blockheight([l2])
assert not l2.daemon.is_in_log('onchaind complete, forgetting peer')
bitcoind.generate_block(1)
@ -1814,8 +1814,8 @@ class LightningDTests(BaseLightningDTests):
l1.daemon.wait_for_log('Their unilateral tx, new commit point')
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\\) in 5 blocks')
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US (.*) in 5 blocks')
l2.daemon.wait_for_log('Propose handling OUR_UNILATERAL/THEIR_HTLC by THEIR_HTLC_TIMEOUT_TO_THEM \\(IGNORING\\) in 6 blocks')
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US (.*) in 6 blocks')
# OK, time out HTLC.
bitcoind.generate_block(5)
@ -1850,8 +1850,8 @@ class LightningDTests(BaseLightningDTests):
l1.daemon.wait_for_log('Their unilateral tx, old commit point')
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\\) in 5 blocks')
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US (.*) in 5 blocks')
l2.daemon.wait_for_log('Propose handling OUR_UNILATERAL/THEIR_HTLC by THEIR_HTLC_TIMEOUT_TO_THEM \\(IGNORING\\) in 6 blocks')
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US (.*) in 6 blocks')
# l2 then gets preimage, uses it instead of ignoring
l2.daemon.wait_for_log('Propose handling OUR_UNILATERAL/THEIR_HTLC by OUR_HTLC_SUCCESS_TX .* in 0 blocks')
l2.daemon.wait_for_log('sendrawtx exit 0')
@ -1860,7 +1860,7 @@ class LightningDTests(BaseLightningDTests):
# OK, l1 sees l2 fulfill htlc.
l1.daemon.wait_for_log('THEIR_UNILATERAL/OUR_HTLC gave us preimage')
l2.daemon.wait_for_log('Propose handling OUR_HTLC_SUCCESS_TX/DELAYED_OUTPUT_TO_US by OUR_DELAYED_RETURN_TO_WALLET .* in 5 blocks')
bitcoind.generate_block(5)
bitcoind.generate_block(6)
l2.daemon.wait_for_log('sendrawtx exit 0')
@ -1892,10 +1892,10 @@ class LightningDTests(BaseLightningDTests):
l1.daemon.wait_for_log('Their unilateral tx, old commit point')
l1.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_logs(['Propose handling OUR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TX \\(.*\\) in 5 blocks',
l2.daemon.wait_for_logs(['Propose handling OUR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TX \\(.*\\) in 6 blocks',
'Propose handling OUR_UNILATERAL/DELAYED_OUTPUT_TO_US by OUR_DELAYED_RETURN_TO_WALLET .* in 5 blocks'])
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/THEIR_HTLC by THEIR_HTLC_TIMEOUT_TO_THEM \\(IGNORING\\) in 5 blocks')
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/THEIR_HTLC by THEIR_HTLC_TIMEOUT_TO_THEM \\(IGNORING\\) in 6 blocks')
# l1 then gets preimage, uses it instead of ignoring
l1.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/THEIR_HTLC by THEIR_HTLC_FULFILL_TO_US .* in 0 blocks')
l1.daemon.wait_for_log('sendrawtx exit 0')