4 ChannelManager, HTLCStatus, MillisatAmount, NetworkGraph, OnionMessenger, PaymentInfo,
5 PaymentInfoStorage, PeerManager,
7 use bitcoin::hashes::sha256::Hash as Sha256;
8 use bitcoin::hashes::Hash;
9 use bitcoin::network::constants::Network;
10 use bitcoin::secp256k1::PublicKey;
11 use lightning::chain::keysinterface::{EntropySource, KeysManager};
12 use lightning::ln::channelmanager::{PaymentId, Retry};
13 use lightning::ln::msgs::NetAddress;
14 use lightning::ln::{PaymentHash, PaymentPreimage};
15 use lightning::onion_message::{CustomOnionMessageContents, Destination, OnionMessageContents};
16 use lightning::routing::gossip::NodeId;
17 use lightning::routing::router::{PaymentParameters, RouteParameters};
18 use lightning::util::config::{ChannelHandshakeConfig, ChannelHandshakeLimits, UserConfig};
19 use lightning::util::ser::{Writeable, Writer};
20 use lightning_invoice::payment::pay_invoice;
21 use lightning_invoice::{utils, Currency, Invoice};
25 use std::net::{SocketAddr, ToSocketAddrs};
28 use std::str::FromStr;
30 use std::time::Duration;
32 pub(crate) struct LdkUserInfo {
33 pub(crate) bitcoind_rpc_username: String,
34 pub(crate) bitcoind_rpc_password: String,
35 pub(crate) bitcoind_rpc_port: u16,
36 pub(crate) bitcoind_rpc_host: String,
37 pub(crate) ldk_storage_dir_path: String,
38 pub(crate) ldk_peer_listening_port: u16,
39 pub(crate) ldk_announced_listen_addr: Vec<NetAddress>,
40 pub(crate) ldk_announced_node_name: [u8; 32],
41 pub(crate) network: Network,
44 struct UserOnionMessageContents {
49 impl CustomOnionMessageContents for UserOnionMessageContents {
50 fn tlv_type(&self) -> u64 {
55 impl Writeable for UserOnionMessageContents {
56 fn write<W: Writer>(&self, w: &mut W) -> Result<(), std::io::Error> {
57 w.write_all(&self.data)
61 pub(crate) async fn poll_for_user_input(
62 peer_manager: Arc<PeerManager>, channel_manager: Arc<ChannelManager>,
63 keys_manager: Arc<KeysManager>, network_graph: Arc<NetworkGraph>,
64 onion_messenger: Arc<OnionMessenger>, inbound_payments: PaymentInfoStorage,
65 outbound_payments: PaymentInfoStorage, ldk_data_dir: String, network: Network,
66 logger: Arc<disk::FilesystemLogger>,
69 "LDK startup successful. Enter \"help\" to view available commands. Press Ctrl-D to quit."
71 println!("LDK logs are available at <your-supplied-ldk-data-dir-path>/.ldk/logs");
72 println!("Local Node ID is {}.", channel_manager.get_our_node_id());
75 io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
76 let mut line = String::new();
77 if let Err(e) = io::stdin().read_line(&mut line) {
78 break println!("ERROR: {}", e);
82 // We hit EOF / Ctrl-D
86 let mut words = line.split_whitespace();
87 if let Some(word) = words.next() {
91 let peer_pubkey_and_ip_addr = words.next();
92 let channel_value_sat = words.next();
93 if peer_pubkey_and_ip_addr.is_none() || channel_value_sat.is_none() {
94 println!("ERROR: openchannel has 2 required arguments: `openchannel pubkey@host:port channel_amt_satoshis` [--public]");
97 let peer_pubkey_and_ip_addr = peer_pubkey_and_ip_addr.unwrap();
98 let (pubkey, peer_addr) =
99 match parse_peer_info(peer_pubkey_and_ip_addr.to_string()) {
102 println!("{:?}", e.into_inner().unwrap());
107 let chan_amt_sat: Result<u64, _> = channel_value_sat.unwrap().parse();
108 if chan_amt_sat.is_err() {
109 println!("ERROR: channel amount must be a number");
113 if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone())
120 let announce_channel = match words.next() {
121 Some("--public") | Some("--public=true") => true,
122 Some("--public=false") => false,
124 println!("ERROR: invalid `--public` command format. Valid formats: `--public`, `--public=true` `--public=false`");
132 chan_amt_sat.unwrap(),
134 channel_manager.clone(),
138 let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
139 let _ = disk::persist_channel_peer(
140 Path::new(&peer_data_path),
141 peer_pubkey_and_ip_addr,
146 let invoice_str = words.next();
147 if invoice_str.is_none() {
148 println!("ERROR: sendpayment requires an invoice: `sendpayment <invoice>`");
152 let invoice = match Invoice::from_str(invoice_str.unwrap()) {
155 println!("ERROR: invalid invoice: {:?}", e);
160 send_payment(&*channel_manager, &invoice, outbound_payments.clone());
163 let dest_pubkey = match words.next() {
164 Some(dest) => match hex_utils::to_compressed_pubkey(dest) {
167 println!("ERROR: couldn't parse destination pubkey");
172 println!("ERROR: keysend requires a destination pubkey: `keysend <dest_pubkey> <amt_msat>`");
176 let amt_msat_str = match words.next() {
179 println!("ERROR: keysend requires an amount in millisatoshis: `keysend <dest_pubkey> <amt_msat>`");
183 let amt_msat: u64 = match amt_msat_str.parse() {
186 println!("ERROR: couldn't parse amount_msat: {}", e);
195 outbound_payments.clone(),
199 let amt_str = words.next();
200 if amt_str.is_none() {
201 println!("ERROR: getinvoice requires an amount in millisatoshis");
205 let amt_msat: Result<u64, _> = amt_str.unwrap().parse();
206 if amt_msat.is_err() {
207 println!("ERROR: getinvoice provided payment amount was not a number");
211 let expiry_secs_str = words.next();
212 if expiry_secs_str.is_none() {
213 println!("ERROR: getinvoice requires an expiry in seconds");
217 let expiry_secs: Result<u32, _> = expiry_secs_str.unwrap().parse();
218 if expiry_secs.is_err() {
219 println!("ERROR: getinvoice provided expiry was not a number");
225 Arc::clone(&inbound_payments),
227 Arc::clone(&keys_manager),
229 expiry_secs.unwrap(),
234 let peer_pubkey_and_ip_addr = words.next();
235 if peer_pubkey_and_ip_addr.is_none() {
236 println!("ERROR: connectpeer requires peer connection info: `connectpeer pubkey@host:port`");
239 let (pubkey, peer_addr) =
240 match parse_peer_info(peer_pubkey_and_ip_addr.unwrap().to_string()) {
243 println!("{:?}", e.into_inner().unwrap());
247 if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone())
251 println!("SUCCESS: connected to peer {}", pubkey);
254 "disconnectpeer" => {
255 let peer_pubkey = words.next();
256 if peer_pubkey.is_none() {
257 println!("ERROR: disconnectpeer requires peer public key: `disconnectpeer <peer_pubkey>`");
262 match bitcoin::secp256k1::PublicKey::from_str(peer_pubkey.unwrap()) {
263 Ok(pubkey) => pubkey,
265 println!("ERROR: {}", e.to_string());
270 if do_disconnect_peer(
272 peer_manager.clone(),
273 channel_manager.clone(),
277 println!("SUCCESS: disconnected from peer {}", peer_pubkey);
280 "listchannels" => list_channels(&channel_manager, &network_graph),
282 list_payments(inbound_payments.clone(), outbound_payments.clone())
285 let channel_id_str = words.next();
286 if channel_id_str.is_none() {
287 println!("ERROR: closechannel requires a channel ID: `closechannel <channel_id> <peer_pubkey>`");
290 let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
291 if channel_id_vec.is_none() || channel_id_vec.as_ref().unwrap().len() != 32 {
292 println!("ERROR: couldn't parse channel_id");
295 let mut channel_id = [0; 32];
296 channel_id.copy_from_slice(&channel_id_vec.unwrap());
298 let peer_pubkey_str = words.next();
299 if peer_pubkey_str.is_none() {
300 println!("ERROR: closechannel requires a peer pubkey: `closechannel <channel_id> <peer_pubkey>`");
303 let peer_pubkey_vec = match hex_utils::to_vec(peer_pubkey_str.unwrap()) {
304 Some(peer_pubkey_vec) => peer_pubkey_vec,
306 println!("ERROR: couldn't parse peer_pubkey");
310 let peer_pubkey = match PublicKey::from_slice(&peer_pubkey_vec) {
311 Ok(peer_pubkey) => peer_pubkey,
313 println!("ERROR: couldn't parse peer_pubkey");
318 close_channel(channel_id, peer_pubkey, channel_manager.clone());
320 "forceclosechannel" => {
321 let channel_id_str = words.next();
322 if channel_id_str.is_none() {
323 println!("ERROR: forceclosechannel requires a channel ID: `forceclosechannel <channel_id> <peer_pubkey>`");
326 let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
327 if channel_id_vec.is_none() || channel_id_vec.as_ref().unwrap().len() != 32 {
328 println!("ERROR: couldn't parse channel_id");
331 let mut channel_id = [0; 32];
332 channel_id.copy_from_slice(&channel_id_vec.unwrap());
334 let peer_pubkey_str = words.next();
335 if peer_pubkey_str.is_none() {
336 println!("ERROR: forceclosechannel requires a peer pubkey: `forceclosechannel <channel_id> <peer_pubkey>`");
339 let peer_pubkey_vec = match hex_utils::to_vec(peer_pubkey_str.unwrap()) {
340 Some(peer_pubkey_vec) => peer_pubkey_vec,
342 println!("ERROR: couldn't parse peer_pubkey");
346 let peer_pubkey = match PublicKey::from_slice(&peer_pubkey_vec) {
347 Ok(peer_pubkey) => peer_pubkey,
349 println!("ERROR: couldn't parse peer_pubkey");
354 force_close_channel(channel_id, peer_pubkey, channel_manager.clone());
356 "nodeinfo" => node_info(&channel_manager, &peer_manager),
357 "listpeers" => list_peers(peer_manager.clone()),
359 const MSG_STARTPOS: usize = "signmessage".len() + 1;
360 if line.as_bytes().len() <= MSG_STARTPOS {
361 println!("ERROR: signmsg requires a message");
366 lightning::util::message_signing::sign(
367 &line.as_bytes()[MSG_STARTPOS..],
368 &keys_manager.get_node_secret_key()
372 "sendonionmessage" => {
373 let path_pks_str = words.next();
374 if path_pks_str.is_none() {
376 "ERROR: sendonionmessage requires at least one node id for the path"
380 let mut node_pks = Vec::new();
381 let mut errored = false;
382 for pk_str in path_pks_str.unwrap().split(",") {
383 let node_pubkey_vec = match hex_utils::to_vec(pk_str) {
384 Some(peer_pubkey_vec) => peer_pubkey_vec,
386 println!("ERROR: couldn't parse peer_pubkey");
391 let node_pubkey = match PublicKey::from_slice(&node_pubkey_vec) {
392 Ok(peer_pubkey) => peer_pubkey,
394 println!("ERROR: couldn't parse peer_pubkey");
399 node_pks.push(node_pubkey);
404 let tlv_type = match words.next().map(|ty_str| ty_str.parse()) {
405 Some(Ok(ty)) if ty >= 64 => ty,
407 println!("Need an integral message type above 64");
411 let data = match words.next().map(|s| hex_utils::to_vec(s)) {
412 Some(Some(data)) => data,
414 println!("Need a hex data string");
418 let destination_pk = node_pks.pop().unwrap();
419 match onion_messenger.send_onion_message(
421 Destination::Node(destination_pk),
422 OnionMessageContents::Custom(UserOnionMessageContents { tlv_type, data }),
425 Ok(()) => println!("SUCCESS: forwarded onion message to first hop"),
426 Err(e) => println!("ERROR: failed to send onion message: {:?}", e),
429 "quit" | "exit" => break,
430 _ => println!("Unknown command. See `\"help\" for available commands."),
437 let package_version = env!("CARGO_PKG_VERSION");
438 let package_name = env!("CARGO_PKG_NAME");
439 println!("\nVERSION:");
440 println!(" {} v{}", package_name, package_version);
441 println!("\nUSAGE:");
442 println!(" Command [arguments]");
443 println!("\nCOMMANDS:");
444 println!(" help\tShows a list of commands.");
445 println!(" quit\tClose the application.");
446 println!("\n Channels:");
447 println!(" openchannel pubkey@host:port <amt_satoshis> [--public]");
448 println!(" closechannel <channel_id> <peer_pubkey>");
449 println!(" forceclosechannel <channel_id> <peer_pubkey>");
450 println!(" listchannels");
451 println!("\n Peers:");
452 println!(" connectpeer pubkey@host:port");
453 println!(" disconnectpeer <peer_pubkey>");
454 println!(" listpeers");
455 println!("\n Payments:");
456 println!(" sendpayment <invoice>");
457 println!(" keysend <dest_pubkey> <amt_msats>");
458 println!(" listpayments");
459 println!("\n Invoices:");
460 println!(" getinvoice <amt_msats> <expiry_secs>");
461 println!("\n Other:");
462 println!(" signmessage <message>");
464 " sendonionmessage <node_id_1,node_id_2,..,destination_node_id> <type> <hex_bytes>"
466 println!(" nodeinfo");
469 fn node_info(channel_manager: &Arc<ChannelManager>, peer_manager: &Arc<PeerManager>) {
471 println!("\t\t node_pubkey: {}", channel_manager.get_our_node_id());
472 let chans = channel_manager.list_channels();
473 println!("\t\t num_channels: {}", chans.len());
474 println!("\t\t num_usable_channels: {}", chans.iter().filter(|c| c.is_usable).count());
475 let local_balance_msat = chans.iter().map(|c| c.balance_msat).sum::<u64>();
476 println!("\t\t local_balance_msat: {}", local_balance_msat);
477 println!("\t\t num_peers: {}", peer_manager.get_peer_node_ids().len());
481 fn list_peers(peer_manager: Arc<PeerManager>) {
483 for (pubkey, _) in peer_manager.get_peer_node_ids() {
484 println!("\t\t pubkey: {}", pubkey);
489 fn list_channels(channel_manager: &Arc<ChannelManager>, network_graph: &Arc<NetworkGraph>) {
491 for chan_info in channel_manager.list_channels() {
494 println!("\t\tchannel_id: {},", hex_utils::hex_str(&chan_info.channel_id[..]));
495 if let Some(funding_txo) = chan_info.funding_txo {
496 println!("\t\tfunding_txid: {},", funding_txo.txid);
500 "\t\tpeer_pubkey: {},",
501 hex_utils::hex_str(&chan_info.counterparty.node_id.serialize())
503 if let Some(node_info) = network_graph
506 .get(&NodeId::from_pubkey(&chan_info.counterparty.node_id))
508 if let Some(announcement) = &node_info.announcement_info {
509 println!("\t\tpeer_alias: {}", announcement.alias);
513 if let Some(id) = chan_info.short_channel_id {
514 println!("\t\tshort_channel_id: {},", id);
516 println!("\t\tis_channel_ready: {},", chan_info.is_channel_ready);
517 println!("\t\tchannel_value_satoshis: {},", chan_info.channel_value_satoshis);
518 println!("\t\tlocal_balance_msat: {},", chan_info.balance_msat);
519 if chan_info.is_usable {
520 println!("\t\tavailable_balance_for_send_msat: {},", chan_info.outbound_capacity_msat);
521 println!("\t\tavailable_balance_for_recv_msat: {},", chan_info.inbound_capacity_msat);
523 println!("\t\tchannel_can_send_payments: {},", chan_info.is_usable);
524 println!("\t\tpublic: {},", chan_info.is_public);
530 fn list_payments(inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage) {
531 let inbound = inbound_payments.lock().unwrap();
532 let outbound = outbound_payments.lock().unwrap();
534 for (payment_hash, payment_info) in inbound.deref() {
537 println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
538 println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
539 println!("\t\thtlc_direction: inbound,");
541 "\t\thtlc_status: {},",
542 match payment_info.status {
543 HTLCStatus::Pending => "pending",
544 HTLCStatus::Succeeded => "succeeded",
545 HTLCStatus::Failed => "failed",
552 for (payment_hash, payment_info) in outbound.deref() {
555 println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
556 println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
557 println!("\t\thtlc_direction: outbound,");
559 "\t\thtlc_status: {},",
560 match payment_info.status {
561 HTLCStatus::Pending => "pending",
562 HTLCStatus::Succeeded => "succeeded",
563 HTLCStatus::Failed => "failed",
572 pub(crate) async fn connect_peer_if_necessary(
573 pubkey: PublicKey, peer_addr: SocketAddr, peer_manager: Arc<PeerManager>,
574 ) -> Result<(), ()> {
575 for (node_pubkey, _) in peer_manager.get_peer_node_ids() {
576 if node_pubkey == pubkey {
580 let res = do_connect_peer(pubkey, peer_addr, peer_manager).await;
582 println!("ERROR: failed to connect to peer");
587 pub(crate) async fn do_connect_peer(
588 pubkey: PublicKey, peer_addr: SocketAddr, peer_manager: Arc<PeerManager>,
589 ) -> Result<(), ()> {
590 match lightning_net_tokio::connect_outbound(Arc::clone(&peer_manager), pubkey, peer_addr).await
592 Some(connection_closed_future) => {
593 let mut connection_closed_future = Box::pin(connection_closed_future);
595 match futures::poll!(&mut connection_closed_future) {
596 std::task::Poll::Ready(_) => {
599 std::task::Poll::Pending => {}
601 // Avoid blocking the tokio context by sleeping a bit
602 match peer_manager.get_peer_node_ids().iter().find(|(id, _)| *id == pubkey) {
603 Some(_) => return Ok(()),
604 None => tokio::time::sleep(Duration::from_millis(10)).await,
612 fn do_disconnect_peer(
613 pubkey: bitcoin::secp256k1::PublicKey, peer_manager: Arc<PeerManager>,
614 channel_manager: Arc<ChannelManager>,
615 ) -> Result<(), ()> {
616 //check for open channels with peer
617 for channel in channel_manager.list_channels() {
618 if channel.counterparty.node_id == pubkey {
619 println!("Error: Node has an active channel with this peer, close any channels first");
624 //check the pubkey matches a valid connected peer
625 let peers = peer_manager.get_peer_node_ids();
626 if !peers.iter().any(|(pk, _)| &pubkey == pk) {
627 println!("Error: Could not find peer {}", pubkey);
631 peer_manager.disconnect_by_node_id(pubkey);
636 peer_pubkey: PublicKey, channel_amt_sat: u64, announced_channel: bool,
637 channel_manager: Arc<ChannelManager>,
638 ) -> Result<(), ()> {
639 let config = UserConfig {
640 channel_handshake_limits: ChannelHandshakeLimits {
641 // lnd's max to_self_delay is 2016, so we want to be compatible.
642 their_to_self_delay: 2016,
645 channel_handshake_config: ChannelHandshakeConfig {
652 match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, Some(config)) {
654 println!("EVENT: initiated channel with peer {}. ", peer_pubkey);
658 println!("ERROR: failed to open channel: {:?}", e);
665 channel_manager: &ChannelManager, invoice: &Invoice, payment_storage: PaymentInfoStorage,
668 match pay_invoice(invoice, Retry::Timeout(Duration::from_secs(10)), channel_manager) {
670 let payee_pubkey = invoice.recover_payee_pub_key();
671 let amt_msat = invoice.amount_milli_satoshis().unwrap();
672 println!("EVENT: initiated sending {} msats to {}", amt_msat, payee_pubkey);
677 println!("ERROR: failed to send payment: {:?}", e);
682 let payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner());
683 let payment_secret = Some(invoice.payment_secret().clone());
685 let mut payments = payment_storage.lock().unwrap();
690 secret: payment_secret,
692 amt_msat: MillisatAmount(invoice.amount_milli_satoshis()),
697 fn keysend<E: EntropySource>(
698 channel_manager: &ChannelManager, payee_pubkey: PublicKey, amt_msat: u64, entropy_source: &E,
699 payment_storage: PaymentInfoStorage,
701 let payment_preimage = PaymentPreimage(entropy_source.get_secure_random_bytes());
702 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
704 let route_params = RouteParameters {
705 payment_params: PaymentParameters::for_keysend(payee_pubkey, 40),
706 final_value_msat: amt_msat,
708 let status = match channel_manager.send_spontaneous_payment_with_retry(
709 Some(payment_preimage),
710 PaymentId(payment_hash.0),
712 Retry::Timeout(Duration::from_secs(10)),
714 Ok(_payment_hash) => {
715 println!("EVENT: initiated sending {} msats to {}", amt_msat, payee_pubkey);
720 println!("ERROR: failed to send payment: {:?}", e);
726 let mut payments = payment_storage.lock().unwrap();
733 amt_msat: MillisatAmount(Some(amt_msat)),
739 amt_msat: u64, payment_storage: PaymentInfoStorage, channel_manager: &ChannelManager,
740 keys_manager: Arc<KeysManager>, network: Network, expiry_secs: u32,
741 logger: Arc<disk::FilesystemLogger>,
743 let mut payments = payment_storage.lock().unwrap();
744 let currency = match network {
745 Network::Bitcoin => Currency::Bitcoin,
746 Network::Testnet => Currency::BitcoinTestnet,
747 Network::Regtest => Currency::Regtest,
748 Network::Signet => Currency::Signet,
750 let invoice = match utils::create_invoice_from_channelmanager(
756 "ldk-tutorial-node".to_string(),
761 println!("SUCCESS: generated invoice: {}", inv);
765 println!("ERROR: failed to create invoice: {:?}", e);
770 let payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner());
775 secret: Some(invoice.payment_secret().clone()),
776 status: HTLCStatus::Pending,
777 amt_msat: MillisatAmount(Some(amt_msat)),
783 channel_id: [u8; 32], counterparty_node_id: PublicKey, channel_manager: Arc<ChannelManager>,
785 match channel_manager.close_channel(&channel_id, &counterparty_node_id) {
786 Ok(()) => println!("EVENT: initiating channel close"),
787 Err(e) => println!("ERROR: failed to close channel: {:?}", e),
791 fn force_close_channel(
792 channel_id: [u8; 32], counterparty_node_id: PublicKey, channel_manager: Arc<ChannelManager>,
794 match channel_manager.force_close_broadcasting_latest_txn(&channel_id, &counterparty_node_id) {
795 Ok(()) => println!("EVENT: initiating channel force-close"),
796 Err(e) => println!("ERROR: failed to force-close channel: {:?}", e),
800 pub(crate) fn parse_peer_info(
801 peer_pubkey_and_ip_addr: String,
802 ) -> Result<(PublicKey, SocketAddr), std::io::Error> {
803 let mut pubkey_and_addr = peer_pubkey_and_ip_addr.split("@");
804 let pubkey = pubkey_and_addr.next();
805 let peer_addr_str = pubkey_and_addr.next();
806 if peer_addr_str.is_none() {
807 return Err(std::io::Error::new(
808 std::io::ErrorKind::Other,
809 "ERROR: incorrectly formatted peer info. Should be formatted as: `pubkey@host:port`",
813 let peer_addr = peer_addr_str.unwrap().to_socket_addrs().map(|mut r| r.next());
814 if peer_addr.is_err() || peer_addr.as_ref().unwrap().is_none() {
815 return Err(std::io::Error::new(
816 std::io::ErrorKind::Other,
817 "ERROR: couldn't parse pubkey@host:port into a socket address",
821 let pubkey = hex_utils::to_compressed_pubkey(pubkey.unwrap());
822 if pubkey.is_none() {
823 return Err(std::io::Error::new(
824 std::io::ErrorKind::Other,
825 "ERROR: unable to parse given pubkey for node",
829 Ok((pubkey.unwrap(), peer_addr.unwrap().unwrap()))