Function get_per_commitment_point

channeld/channeld.c:1420–1444

If old_secret is NULL, we don't care, otherwise it is filled in. */

/* If old_secret is NULL, we don't care, otherwise it is filled in. */
static void get_per_commitment_point(u64 index, struct pubkey *point,
				     struct secret *old_secret)
{
	struct secret *s;
	const u8 *msg;

	msg = hsm_req(tmpctx,
		      take(towire_hsmd_get_per_commitment_point(NULL, index)));

	if (!fromwire_hsmd_get_per_commitment_point_reply(tmpctx, msg,
							 point,
							 &s))
		status_failed(STATUS_FAIL_HSM_IO,
			      "Bad per_commitment_point reply %s",
			      tal_hex(tmpctx, msg));

	if (old_secret) {
		if (!s)
			status_failed(STATUS_FAIL_HSM_IO,
				      "No secret in per_commitment_point_reply %"
				      PRIu64,
				      index);
		*old_secret = *s;
	}
}

/* revoke_index == current index - 1 (usually; not for retransmission) */
static u8 *make_revocation_msg(const struct peer *peer, u64 revoke_index,