gossip: Store channel capacity in the routing table

Signed-off-by: Christian Decker <decker.christian@gmail.com>

gossipd/gossip.c

@@ -1818,7 +1818,7 @@ static struct io_plan *handle_txout_reply(struct io_conn *conn,
 	if (!fromwire_gossip_get_txout_reply(msg, msg, &scid, &satoshis, &outscript))
 		master_badmsg(WIRE_GOSSIP_GET_TXOUT_REPLY, msg);
 
-	if (handle_pending_cannouncement(daemon->rstate, &scid, outscript))
+	if (handle_pending_cannouncement(daemon->rstate, &scid, satoshis, outscript))
 		send_node_announcement(daemon);
 
 	return daemon_conn_read_next(conn, &daemon->master);

gossipd/routing.c

@@ -225,6 +225,7 @@ struct chan *new_chan(struct routing_state *rstate,
 	chan->channel_announcement = NULL;
 	chan->channel_announce_msgidx = 0;
 	chan->public = false;
+	chan->satoshis = 0;
 
 	n = tal_count(n2->chans);
 	tal_resize(&n2->chans, n+1);
@@ -646,6 +647,7 @@ const struct short_channel_id *handle_channel_announcement(
 
 bool handle_pending_cannouncement(struct routing_state *rstate,
 				  const struct short_channel_id *scid,
+				  const u64 satoshis,
 				  const u8 *outscript)
 {
 	bool local;
@@ -706,6 +708,7 @@ bool handle_pending_cannouncement(struct routing_state *rstate,
 
 	/* Channel is now public. */
 	chan->public = true;
+	chan->satoshis = satoshis;
 
 	/* Save channel_announcement. */
 	tal_free(chan->channel_announcement);

gossipd/routing.h

@@ -61,6 +61,8 @@ struct chan {
 
 	/* Is this a public channel, or was it only added locally? */
 	bool public;
+
+	u64 satoshis;
 };
 
 struct node {
@@ -210,6 +212,7 @@ handle_channel_announcement(struct routing_state *rstate,
  */
 bool handle_pending_cannouncement(struct routing_state *rstate,
 				  const struct short_channel_id *scid,
+				  const u64 satoshis,
 				  const u8 *txscript);
 void handle_channel_update(struct routing_state *rstate, const u8 *update);
 void handle_node_announcement(struct routing_state *rstate, const u8 *node);