gossip: Add message types to store gossip msgs and associate data

Since we may want to extend the on-disk format by adding custom information we
may as well just go the extra mile and reuse the serialization primitives we
already have.

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

gossipd/gossip.c

@@ -2080,6 +2080,10 @@ static struct io_plan *recv_req(struct io_conn *conn, struct daemon_conn *master
 	case WIRE_GOSSIP_GET_TXOUT:
 	case WIRE_GOSSIPCTL_PEER_DISCONNECT_REPLY:
 	case WIRE_GOSSIPCTL_PEER_DISCONNECT_REPLYFAIL:
+	/* gossip_store messages */
+	case WIRE_GOSSIP_STORE_CHANNEL_ANNOUNCEMENT:
+	case WIRE_GOSSIP_STORE_CHANNEL_UPDATE:
+	case WIRE_GOSSIP_STORE_NODE_ANNOUNCEMENT:
 		break;
 	}
 

gossipd/gossip_wire.csv

@@ -224,3 +224,18 @@ gossipctl_peer_disconnect_reply,3123
 # Gossipd -> master:  reply to gossip_peer_disconnect if we couldn't find the peer.
 gossipctl_peer_disconnect_replyfail,3223
 gossipctl_peer_disconnect_replyfail,,isconnected,bool
+
+
+# gossip_store messages: messages persisted in the gossip_store
+gossip_store_channel_announcement,4096
+gossip_store_channel_announcement,,len,u16
+gossip_store_channel_announcement,,announcement,len*u8
+gossip_store_channel_announcement,,satoshis,u64
+
+gossip_store_channel_update,4097
+gossip_store_channel_update,,len,u16
+gossip_store_channel_update,,update,len*u8
+
+gossip_store_node_announcement,4098
+gossip_store_node_announcement,,len,u16
+gossip_store_node_announcement,,announcement,len*u8

lightningd/gossip_control.c

@@ -147,6 +147,10 @@ static unsigned gossip_msg(struct subd *gossip, const u8 *msg, const int *fds)
 	case WIRE_GOSSIPCTL_RELEASE_PEER_REPLYFAIL:
 	case WIRE_GOSSIPCTL_PEER_DISCONNECT_REPLY:
 	case WIRE_GOSSIPCTL_PEER_DISCONNECT_REPLYFAIL:
+	/* gossip_store messages */
+	case WIRE_GOSSIP_STORE_CHANNEL_ANNOUNCEMENT:
+	case WIRE_GOSSIP_STORE_CHANNEL_UPDATE:
+	case WIRE_GOSSIP_STORE_NODE_ANNOUNCEMENT:
 		break;
 	/* These are inter-daemon messages, not received by us */
 	case WIRE_GOSSIP_LOCAL_ADD_CHANNEL: