Function rbf_remote_start

openingd/dualopend.c:3658–3835

}

static void rbf_remote_start(struct state *state, const u8 *rbf_msg)
{
	struct channel_id cid;
	struct tx_state *tx_state;
	char *err_reason;
	struct amount_sat total;
	enum dualopend_wire msg_type;
	struct tlv_tx_init_rbf_tlvs *init_rbf_tlvs;
	struct tlv_tx_ack_rbf_tlvs *ack_rbf_tlvs;

	u8 *msg;
	/* tmpctx gets cleaned midway, so we have a context for this fn */
	char *rbf_ctx = notleak_with_children(tal(state, char));

	/* We need a new tx_state! */
	tx_state = new_tx_state(rbf_ctx);
	ack_rbf_tlvs = tlv_tx_ack_rbf_tlvs_new(tmpctx);

	if (!fromwire_tx_init_rbf(tmpctx, rbf_msg, &cid,
				  &tx_state->tx_locktime,
				  &tx_state->feerate_per_kw_funding,
				  &init_rbf_tlvs))
		open_err_fatal(state, "Parsing tx_init_rbf %s",
			       tal_hex(tmpctx, rbf_msg));

	/* Is this the correct channel? */
	check_channel_id(state, &cid, &state->channel_id);
	peer_billboard(false, "channel rbf: init received from peer");

	/* Have you sent us everything we need yet ? */
	if (!state->tx_state->remote_funding_sigs_rcvd)
		open_err_warn(state, "%s",
			      "Last funding attempt not complete:"
			      " missing your funding tx_sigs");

	if (state->our_role == TX_INITIATOR) {
		open_abort(state, "%s",
			   "Only the channel initiator is allowed"
			   " to initiate RBF");
		goto free_rbf_ctx;
	}

	/* Maybe they want a different funding amount! */
	if (init_rbf_tlvs && init_rbf_tlvs->funding_output_contribution) {
		tx_state->opener_funding =
			amount_sat(*init_rbf_tlvs->funding_output_contribution);

		if (!amount_sat_eq(tx_state->opener_funding,
				   state->tx_state->opener_funding))
			status_debug("RBF: opener amt changed %s->%s",
				     fmt_amount_sat(tmpctx,
						    state->tx_state->opener_funding),
				     fmt_amount_sat(tmpctx,
						    tx_state->opener_funding));
	} else
		/* Otherwise we use the last known funding amount */
		tx_state->opener_funding = state->tx_state->opener_funding;