lnd/sweep
Olaoluwa Osuntokun e1e9de24df
sweep: remove all unconfirmed descendant transactions when a sweep conflicts
Before this commit, we we were trying to sweep an anchor output, and
that output was spent by someone else (not the sweeper), then we would
report this back to the original resolver (allowing it to be cleaned
up), and also remove the set of inputs spent by that transaction from
the set we need to sweep.

However, it's possible that if a user is spending unconfirmed outputs,
then the wallet is holding onto an invalid transaction, as the outputs
that were used as inputs have been double spent elsewhere.

In this commit, we fix this issue by recursively removing all descendant
transactions of our past sweeps that have an intersecting input set as
the spending transaction. In cases where a user spent an unconfirmed
output to funding a channel, and that output was a descendant of the now
swept anchor output, the funds will now properly be marked as available.

Fixes #6241
2022-03-17 16:36:47 -07:00
..
backend_mock_test.go sweep: remove all unconfirmed descendant transactions when a sweep conflicts 2022-03-17 16:36:47 -07:00
bucket_list.go sweep: do not combine exclusive and non-exclusive inputs 2020-09-16 08:17:36 +02:00
defaults_rpctest.go multi: add golang 1.17 compatible build tags 2021-09-29 17:31:37 -07:00
defaults.go multi: add golang 1.17 compatible build tags 2021-09-29 17:31:37 -07:00
fee_estimator_mock_test.go chainfee: create new chainfee package extracting fees from lnwallet 2019-10-31 16:41:57 -07:00
interface.go sweep: remove all unconfirmed descendant transactions when a sweep conflicts 2022-03-17 16:36:47 -07:00
log.go multi: modify sweeper.CreateSweepTx to accept conf target, style changes 2018-10-18 18:08:27 -07:00
setup_test.go channeldb/test: test with postgres 2021-10-29 10:54:44 +02:00
store_mock.go sweep: add list sweeps function 2020-05-05 21:10:11 +02:00
store_test.go sweep: use channeldb.MakeTestDB 2020-07-28 17:57:30 +02:00
store.go kvdb: move channeldb/kvdb to top level 2021-05-07 14:18:56 +02:00
sweeper_test.go multi: use btcd's btcec/v2 and btcutil modules 2022-03-09 19:02:37 +01:00
sweeper.go sweep: remove all unconfirmed descendant transactions when a sweep conflicts 2022-03-17 16:36:47 -07:00
test_utils.go multi: formatting and comment fixes 2022-02-10 11:02:02 +01:00
tx_input_set_test.go multi: use btcd's btcec/v2 and btcutil modules 2022-03-09 19:02:37 +01:00
tx_input_set.go multi: use btcd's btcec/v2 and btcutil modules 2022-03-09 19:02:37 +01:00
txgenerator_test.go input/size: split constants into confirmed/non-confirmed 2021-03-05 10:58:42 +01:00
txgenerator.go sweep: remove all unconfirmed descendant transactions when a sweep conflicts 2022-03-17 16:36:47 -07:00
walletsweep_test.go multi: use btcd's btcec/v2 and btcutil modules 2022-03-09 19:02:37 +01:00
walletsweep.go multi: use btcd's btcec/v2 and btcutil modules 2022-03-09 19:02:37 +01:00
weight_estimator_test.go multi: use btcd's btcec/v2 and btcutil modules 2022-03-09 19:02:37 +01:00
weight_estimator.go multi: use btcd's btcec/v2 and btcutil modules 2022-03-09 19:02:37 +01:00