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lightningd: add extra debugging for weird onchain htlc interactions.

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This doesn't actually fix anything, but may shed more clues if it
happens again.

The broken() logs are overzealous, see next patch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2022-03-30 14:13:12 +10:30
parent 5033e22835
commit e616b4fff7
1 changed files with 19 additions and 3 deletions
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22
lightningd/peer_htlcs.c
View file

@ -1418,13 +1418,23 @@ void onchain_failed_our_htlc(const struct channel *channel,
struct lightningd *ld = channel->peer->ld;
struct htlc_out *hout;
log_debug(channel->log, "onchain_failed_our_htlc");
hout = find_htlc_out(&ld->htlcs_out, channel, htlc->id);
if (!hout)
if (!hout) {
log_broken(channel->log, "HTLC id %"PRIu64" not found!",
htlc->id);
return;
}
/* Don't fail twice (or if already succeeded)! */
if (hout->failonion || hout->failmsg || hout->preimage)
if (hout->failonion || hout->failmsg || hout->preimage) {
log_debug(channel->log, "HTLC id %"PRIu64" failonion = %p, failmsg = %p, preimage = %p",
htlc->id,
hout->failonion,
hout->failmsg,
hout->preimage);
return;
}
hout->failmsg = towire_permanent_channel_failure(hout);
@ -1441,6 +1451,8 @@ void onchain_failed_our_htlc(const struct channel *channel,
hout->failmsg, &we_filled);
if (hout->am_origin) {
log_debug(channel->log, "HTLC id %"PRIu64" am origin",
htlc->id);
assert(why != NULL);
char *localfail = tal_fmt(channel, "%s: %s",
onion_wire_name(WIRE_PERMANENT_CHANNEL_FAILURE),
@ -1448,6 +1460,8 @@ void onchain_failed_our_htlc(const struct channel *channel,
payment_failed(ld, hout, localfail);
tal_free(localfail);
} else if (hout->in) {
log_debug(channel->log, "HTLC id %"PRIu64" has incoming",
htlc->id);
local_fail_in_htlc(hout->in,
take(towire_permanent_channel_failure(NULL)));
wallet_forwarded_payment_add(hout->key.channel->peer->ld->wallet,
@ -1456,7 +1470,9 @@ void onchain_failed_our_htlc(const struct channel *channel,
hout->failmsg
? fromwire_peektype(hout->failmsg)
: 0);
}
} else
log_broken(channel->log, "HTLC id %"PRIu64" is from nowhere?",
htlc->id);
}
static void remove_htlc_in(struct channel *channel, struct htlc_in *hin)