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lightningd: fix dual-funding case where we coop close and an RBF confirms. 

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2023-10-02 09:29:52 +10:30
parent 2f394653a8
commit 79d04090fb
1 changed files with 35 additions and 0 deletions
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35
lightningd/peer_control.c
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@ -317,6 +317,25 @@ static enum watch_result funding_spent(struct channel *channel,
size_t inputnum UNUSED,
const struct block *block);
/* We coop-closed channel: if another inflight confirms, force close */
static enum watch_result closed_inflight_depth_cb(struct lightningd *ld,
const struct bitcoin_txid *txid,
const struct bitcoin_tx *tx,
unsigned int depth,
struct channel_inflight *inflight)
{
if (depth == 0)
return KEEP_WATCHING;
/* This is now the main tx. */
update_channel_from_inflight(ld, inflight->channel, inflight);
channel_fail_permanent(inflight->channel,
REASON_UNKNOWN,
"Inflight tx %s confirmed after mutual close",
type_to_string(tmpctx, struct bitcoin_txid, txid));
return DELETE_WATCH;
}
void drop_to_chain(struct lightningd *ld, struct channel *channel,
bool cooperative)
{
@ -366,6 +385,22 @@ void drop_to_chain(struct lightningd *ld, struct channel *channel,
resolve_close_command(ld, channel, cooperative, tx);
}
/* In cooperative mode, we're assuming that we closed the right one:
* this might not happen if we're splicing, or dual-funding still
* opening. So, if we get any unexpected inflight confirming, we
* force close. */
if (cooperative) {
list_for_each(&channel->inflights, inflight, list) {
if (bitcoin_outpoint_eq(&inflight->funding->outpoint,
&channel->funding)) {
continue;
}
watch_txid(inflight, ld->topology,
&inflight->funding->outpoint.txid,
closed_inflight_depth_cb, inflight);
}
}
}
void resend_closing_transactions(struct lightningd *ld)