fixup: Serialise ChannelMonitors and send them over inside Peer Storage

Author: adi2011

lightning/src/chain/chainmonitor.rs

@@ -838,7 +838,11 @@ where
 			match write_util(&chan_mon, true, &mut ser_chan) {
 				Ok(_) => {
 					// Adding size of peer_storage_monitor.
-					curr_size += ser_chan.0.len() + 32 + 8 + 32 + 14;
+					curr_size += ser_chan.0.serialized_length()
+						+ min_seen_secret.serialized_length()
+						+ chan_id.serialized_length()
+						+ counterparty_node_id.serialized_length();
+
 					if curr_size > MAX_PEER_STORAGE_SIZE {
 						break;
 					}
@@ -858,8 +862,7 @@ where
 			}
 		}
 
-		let mut serialised_channels = Vec::new();
-		monitors_list.write(&mut serialised_channels).unwrap();
+		let serialised_channels = monitors_list.encode();
 		let our_peer_storage = DecryptedOurPeerStorage::new(serialised_channels);
 		let cipher = our_peer_storage.encrypt(&self.our_peerstorage_encryption_key, &random_bytes);