wire: import shutdown proposal from lightning/bolts#847

Author: niftynei

closingd/closingd.c

@@ -187,7 +187,7 @@ static void send_offer(struct per_peer_state *pps,
 		     type_to_string(tmpctx, struct amount_sat, &fee_to_offer));
 
 	assert(our_sig.sighash_type == SIGHASH_ALL);
-	msg = towire_closing_signed(NULL, channel_id, fee_to_offer, &our_sig.s);
+	msg = towire_closing_signed(NULL, channel_id, fee_to_offer, &our_sig.s, NULL);
 	sync_crypto_write(pps, take(msg));
 }
 
@@ -231,6 +231,7 @@ receive_offer(struct per_peer_state *pps,
 	struct amount_sat received_fee;
 	struct bitcoin_signature their_sig;
 	struct bitcoin_tx *tx;
+	struct tlv_closing_signed_tlvs *close_tlvs;
 
 	/* Wait for them to say something interesting */
 	do {
@@ -254,8 +255,10 @@ receive_offer(struct per_peer_state *pps,
 	} while (!msg);
 
 	their_sig.sighash_type = SIGHASH_ALL;
+	close_tlvs = tlv_closing_signed_tlvs_new(msg);
 	if (!fromwire_closing_signed(msg, &their_channel_id,
-				     &received_fee, &their_sig.s))
+				     &received_fee, &their_sig.s,
+				     close_tlvs))
 		peer_failed_warn(pps, channel_id,
 				 "Expected closing_signed: %s",
 				 tal_hex(tmpctx, msg));

wire/extracted_peer_04_closing_fee_nego.patch

@@ -0,0 +1,13 @@
+--- wire/peer_wire.csv	2021-05-18 11:15:05.539134131 -0500
++++ -	2021-05-18 11:15:15.690789516 -0500
+@@ -90,6 +90,10 @@
+ msgdata,closing_signed,channel_id,channel_id,
+ msgdata,closing_signed,fee_satoshis,u64,
+ msgdata,closing_signed,signature,signature,
++msgdata,closing_signed,tlvs,closing_signed_tlvs,
++tlvtype,closing_signed_tlvs,fee_range,1
++tlvdata,closing_signed_tlvs,fee_range,min_fee_satoshis,u64,
++tlvdata,closing_signed_tlvs,fee_range,max_fee_satoshis,u64,
+ msgtype,update_add_htlc,128
+ msgdata,update_add_htlc,channel_id,channel_id,
+ msgdata,update_add_htlc,id,u64,

wire/peer_printgen.c

@@ -182,6 +182,10 @@ msgtype,closing_signed,39
 msgdata,closing_signed,channel_id,channel_id,
 msgdata,closing_signed,fee_satoshis,u64,
 msgdata,closing_signed,signature,signature,
+msgdata,closing_signed,tlvs,closing_signed_tlvs,
+tlvtype,closing_signed_tlvs,fee_range,1
+tlvdata,closing_signed_tlvs,fee_range,min_fee_satoshis,u64,
+tlvdata,closing_signed_tlvs,fee_range,max_fee_satoshis,u64,
 msgtype,update_add_htlc,128
 msgdata,update_add_htlc,channel_id,channel_id,
 msgdata,update_add_htlc,id,u64,

wire/peer_printgen.h

@@ -611,20 +611,27 @@ static struct msg_funding_signed *fromwire_struct_funding_signed(const tal_t *ct
 static void *towire_struct_closing_signed(const tal_t *ctx,
 					  const struct msg_closing_signed *s)
 {
+	struct tlv_closing_signed_tlvs *close_tlvs;
+
+	close_tlvs = tlv_closing_signed_tlvs_new(ctx);
 	return towire_closing_signed(ctx,
 				     &s->channel_id,
 				     s->fee_satoshis,
-				     &s->signature);
+				     &s->signature,
+				     close_tlvs);
 }
 
 static struct msg_closing_signed *fromwire_struct_closing_signed(const tal_t *ctx, const void *p)
 {
 	struct msg_closing_signed *s = tal(ctx, struct msg_closing_signed);
+	struct tlv_closing_signed_tlvs *close_tlvs;
 
+	close_tlvs = tlv_closing_signed_tlvs_new(ctx);
 	if (fromwire_closing_signed(p,
 				    &s->channel_id,
 				    &s->fee_satoshis,
-				    &s->signature))
+				    &s->signature,
+				    close_tlvs))
 		return s;
 	return tal_free(s);
 }