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channel: tell master about the HTLC fulfillment.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2017-04-01 21:31:13 +10:30
parent 826fb0c2dc
commit 1c0b43f04d
3 changed files with 39 additions and 6 deletions
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32
lightningd/peer_control.c
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@@ -742,6 +742,37 @@ static int peer_accepted_htlc(struct peer *peer, const u8 *msg)
return 0;
}
static int peer_fulfilled_htlc(struct peer *peer, const u8 *msg)
{
u64 id;
struct preimage preimage;
struct htlc_end *hend;
if (!fromwire_channel_fulfilled_htlc(msg, NULL, &id, &preimage)) {
log_broken(peer->log, "bad fromwire_channel_fulfilled_htlc %s",
tal_hex(peer, msg));
return -1;
}
hend = find_htlc_end(&peer->ld->htlc_ends, peer, id, HTLC_DST);
if (!hend) {
log_broken(peer->log,
"channel_fulfilled_htlc unknown htlc %"PRIu64,
id);
return -1;
}
/* They fulfilled our HTLC. Credit them, forward as required. */
peer->balance[REMOTE] += hend->msatoshis;
peer->balance[LOCAL] -= hend->msatoshis;
/* FIXME: Forward! */
assert(!hend->other_end);
tal_free(hend);
return 0;
}
static int channel_msg(struct subd *sd, const u8 *msg, const int *unused)
{
enum channel_wire_type t = fromwire_peektype(msg);
@@ -756,6 +787,7 @@ static int channel_msg(struct subd *sd, const u8 *msg, const int *unused)
case WIRE_CHANNEL_ACCEPTED_HTLC:
return peer_accepted_htlc(sd->peer, msg);
case WIRE_CHANNEL_FULFILLED_HTLC:
return peer_fulfilled_htlc(sd->peer, msg);
case WIRE_CHANNEL_FAILED_HTLC:
case WIRE_CHANNEL_MALFORMED_HTLC:
/* FIXME: Forward. */