_ Git - ldk-sample/blob - src/main.rs

   1 pub mod bitcoind_client;
   2 mod cli;
   3 mod convert;
   4 mod disk;
   5 mod hex_utils;
   6
   7 use crate::bitcoind_client::BitcoindClient;
   8 use crate::disk::FilesystemLogger;
   9 use bitcoin::blockdata::constants::genesis_block;
  10 use bitcoin::blockdata::transaction::Transaction;
  11 use bitcoin::consensus::encode;
  12 use bitcoin::hashes::sha256::Hash as Sha256;
  13 use bitcoin::hashes::Hash;
  14 use bitcoin::network::constants::Network;
  15 use bitcoin::secp256k1::Secp256k1;
  16 use bitcoin::BlockHash;
  17 use bitcoin_bech32::WitnessProgram;
  18 use lightning::chain;
  19 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
  20 use lightning::chain::chainmonitor;
  21 use lightning::chain::keysinterface::{InMemorySigner, KeysInterface, KeysManager};
  22 use lightning::chain::Filter;
  23 use lightning::chain::Watch;
  24 use lightning::ln::channelmanager;
  25 use lightning::ln::channelmanager::{
  26         ChainParameters, ChannelManagerReadArgs, PaymentHash, PaymentPreimage, PaymentSecret,
  27         SimpleArcChannelManager,
  28 };
  29 use lightning::ln::peer_handler::{MessageHandler, SimpleArcPeerManager};
  30 use lightning::routing::network_graph::NetGraphMsgHandler;
  31 use lightning::util::config::UserConfig;
  32 use lightning::util::events::{Event, EventsProvider};
  33 use lightning::util::ser::ReadableArgs;
  34 use lightning_background_processor::BackgroundProcessor;
  35 use lightning_block_sync::init;
  36 use lightning_block_sync::poll;
  37 use lightning_block_sync::SpvClient;
  38 use lightning_block_sync::UnboundedCache;
  39 use lightning_net_tokio::SocketDescriptor;
  40 use lightning_persister::FilesystemPersister;
  41 use rand::{thread_rng, Rng};
  42 use std::collections::HashMap;
  43 use std::fmt;
  44 use std::fs;
  45 use std::fs::File;
  46 use std::io;
  47 use std::io::Write;
  48 use std::ops::Deref;
  49 use std::path::Path;
  50 use std::sync::{Arc, Mutex};
  51 use std::time::{Duration, SystemTime};
  52 use tokio::sync::mpsc;
  53
  54 pub(crate) enum HTLCStatus {
  55         Pending,
  56         Succeeded,
  57         Failed,
  58 }
  59
  60 pub(crate) struct MillisatAmount(Option<u64>);
  61
  62 impl fmt::Display for MillisatAmount {
  63         fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  64                 match self.0 {
  65                         Some(amt) => write!(f, "{}", amt),
  66                         None => write!(f, "unknown"),
  67                 }
  68         }
  69 }
  70
  71 pub(crate) struct PaymentInfo {
  72         preimage: Option<PaymentPreimage>,
  73         secret: Option<PaymentSecret>,
  74         status: HTLCStatus,
  75         amt_msat: MillisatAmount,
  76 }
  77
  78 pub(crate) type PaymentInfoStorage = Arc<Mutex<HashMap<PaymentHash, PaymentInfo>>>;
  79
  80 type ChainMonitor = chainmonitor::ChainMonitor<
  81         InMemorySigner,
  82         Arc<dyn Filter>,
  83         Arc<BitcoindClient>,
  84         Arc<BitcoindClient>,
  85         Arc<FilesystemLogger>,
  86         Arc<FilesystemPersister>,
  87 >;
  88
  89 pub(crate) type PeerManager = SimpleArcPeerManager<
  90         SocketDescriptor,
  91         ChainMonitor,
  92         BitcoindClient,
  93         BitcoindClient,
  94         dyn chain::Access,
  95         FilesystemLogger,
  96 >;
  97
  98 pub(crate) type ChannelManager =
  99         SimpleArcChannelManager<ChainMonitor, BitcoindClient, BitcoindClient, FilesystemLogger>;
 100
 101 async fn handle_ldk_events(
 102         channel_manager: Arc<ChannelManager>, chain_monitor: Arc<ChainMonitor>,
 103         bitcoind_client: Arc<BitcoindClient>, keys_manager: Arc<KeysManager>,
 104         inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage, network: Network,
 105 ) {
 106         loop {
 107                 let loop_channel_manager = channel_manager.clone();
 108                 let mut events = channel_manager.get_and_clear_pending_events();
 109                 events.append(&mut chain_monitor.get_and_clear_pending_events());
 110                 for event in events {
 111                         match event {
 112                                 Event::FundingGenerationReady {
 113                                         temporary_channel_id,
 114                                         channel_value_satoshis,
 115                                         output_script,
 116                                         ..
 117                                 } => {
 118                                         // Construct the raw transaction with one output, that is paid the amount of the
 119                                         // channel.
 120                                         let addr = WitnessProgram::from_scriptpubkey(
 121                                                 &output_script[..],
 122                                                 match network {
 123                                                         Network::Bitcoin => bitcoin_bech32::constants::Network::Bitcoin,
 124                                                         Network::Testnet => bitcoin_bech32::constants::Network::Testnet,
 125                                                         Network::Regtest => bitcoin_bech32::constants::Network::Regtest,
 126                                                         Network::Signet => panic!("Signet unsupported"),
 127                                                 },
 128                                         )
 129                                         .expect("Lightning funding tx should always be to a SegWit output")
 130                                         .to_address();
 131                                         let mut outputs = vec![HashMap::with_capacity(1)];
 132                                         outputs[0].insert(addr, channel_value_satoshis as f64 / 100_000_000.0);
 133                                         let raw_tx = bitcoind_client.create_raw_transaction(outputs).await;
 134
 135                                         // Have your wallet put the inputs into the transaction such that the output is
 136                                         // satisfied.
 137                                         let funded_tx = bitcoind_client.fund_raw_transaction(raw_tx).await;
 138                                         let change_output_position = funded_tx.changepos;
 139                                         assert!(change_output_position == 0 || change_output_position == 1);
 140
 141                                         // Sign the final funding transaction and broadcast it.
 142                                         let signed_tx =
 143                                                 bitcoind_client.sign_raw_transaction_with_wallet(funded_tx.hex).await;
 144                                         assert_eq!(signed_tx.complete, true);
 145                                         let final_tx: Transaction =
 146                                                 encode::deserialize(&hex_utils::to_vec(&signed_tx.hex).unwrap()).unwrap();
 147                                         // Give the funding transaction back to LDK for opening the channel.
 148                                         loop_channel_manager
 149                                                 .funding_transaction_generated(&temporary_channel_id, final_tx)
 150                                                 .unwrap();
 151                                 }
 152                                 Event::PaymentReceived { payment_hash, payment_secret, amt } => {
 153                                         let mut payments = inbound_payments.lock().unwrap();
 154                                         if let Some(payment) = payments.get_mut(&payment_hash) {
 155                                                 if payment.secret == payment_secret {
 156                                                         assert!(loop_channel_manager.claim_funds(
 157                                                                 payment.preimage.unwrap().clone(),
 158                                                                 &payment.secret,
 159                                                                 payment.amt_msat.0.unwrap(),
 160                                                         ));
 161                                                         println!(
 162                                                                 "\nEVENT: received payment from payment hash {} of {} millisatoshis",
 163                                                                 hex_utils::hex_str(&payment_hash.0),
 164                                                                 payment.amt_msat
 165                                                       );
 166                                                         print!("> ");
 167                                                         io::stdout().flush().unwrap();
 168                                                         payment.status = HTLCStatus::Succeeded;
 169                                                 } else {
 170                                                         loop_channel_manager
 171                                                                 .fail_htlc_backwards(&payment_hash, &payment.secret);
 172                                                         println!("\nERROR: we received a payment from payment hash {} but the payment secret didn't match", hex_utils::hex_str(&payment_hash.0));
 173                                                         print!("> ");
 174                                                         io::stdout().flush().unwrap();
 175                                                         payment.status = HTLCStatus::Failed;
 176                                                 }
 177                                         } else {
 178                                                 loop_channel_manager.fail_htlc_backwards(&payment_hash, &payment_secret);
 179                                                 println!("\nERROR: we received a payment for payment hash {} but didn't know the preimage", hex_utils::hex_str(&payment_hash.0));
 180                                                 print!("> ");
 181                                                 io::stdout().flush().unwrap();
 182                                                 payments.insert(
 183                                                         payment_hash,
 184                                                         PaymentInfo {
 185                                                                 preimage: None,
 186                                                                 secret: payment_secret,
 187                                                                 status: HTLCStatus::Failed,
 188                                                                 amt_msat: MillisatAmount(Some(amt)),
 189                                                         },
 190                                                 );
 191                                         }
 192                                 }
 193                                 Event::PaymentSent { payment_preimage } => {
 194                                         let hashed = PaymentHash(Sha256::hash(&payment_preimage.0).into_inner());
 195                                         let mut payments = outbound_payments.lock().unwrap();
 196                                         for (payment_hash, payment) in payments.iter_mut() {
 197                                                 if *payment_hash == hashed {
 198                                                         payment.preimage = Some(payment_preimage);
 199                                                         payment.status = HTLCStatus::Succeeded;
 200                                                         println!(
 201                                                                 "\nEVENT: successfully sent payment of {} millisatoshis from \
 202                                          payment hash {:?} with preimage {:?}",
 203                                                                 payment.amt_msat,
 204                                                                 hex_utils::hex_str(&payment_hash.0),
 205                                                                 hex_utils::hex_str(&payment_preimage.0)
 206                                                         );
 207                                                         print!("> ");
 208                                                         io::stdout().flush().unwrap();
 209                                                 }
 210                                         }
 211                                 }
 212                                 Event::PaymentFailed { payment_hash, rejected_by_dest } => {
 213                                         print!(
 214                                                 "\nEVENT: Failed to send payment to payment hash {:?}: ",
 215                                                 hex_utils::hex_str(&payment_hash.0)
 216                                         );
 217                                         if rejected_by_dest {
 218                                                 println!("rejected by destination node");
 219                                         } else {
 220                                                 println!("route failed");
 221                                         }
 222                                         print!("> ");
 223                                         io::stdout().flush().unwrap();
 224
 225                                         let mut payments = outbound_payments.lock().unwrap();
 226                                         if payments.contains_key(&payment_hash) {
 227                                                 let payment = payments.get_mut(&payment_hash).unwrap();
 228                                                 payment.status = HTLCStatus::Failed;
 229                                         }
 230                                 }
 231                                 Event::PendingHTLCsForwardable { time_forwardable } => {
 232                                         let forwarding_channel_manager = loop_channel_manager.clone();
 233                                         tokio::spawn(async move {
 234                                                 let min = time_forwardable.as_millis() as u64;
 235                                                 let millis_to_sleep = thread_rng().gen_range(min, min * 5) as u64;
 236                                                 tokio::time::sleep(Duration::from_millis(millis_to_sleep)).await;
 237                                                 forwarding_channel_manager.process_pending_htlc_forwards();
 238                                         });
 239                                 }
 240                                 Event::SpendableOutputs { outputs } => {
 241                                         let destination_address = bitcoind_client.get_new_address().await;
 242                                         let output_descriptors = &outputs.iter().map(|a| a).collect::<Vec<_>>();
 243                                         let tx_feerate =
 244                                                 bitcoind_client.get_est_sat_per_1000_weight(ConfirmationTarget::Normal);
 245                                         let spending_tx = keys_manager
 246                                                 .spend_spendable_outputs(
 247                                                         output_descriptors,
 248                                                         Vec::new(),
 249                                                         destination_address.script_pubkey(),
 250                                                         tx_feerate,
 251                                                         &Secp256k1::new(),
 252                                                 )
 253                                                 .unwrap();
 254                                         bitcoind_client.broadcast_transaction(&spending_tx);
 255                                 }
 256                         }
 257                 }
 258                 tokio::time::sleep(Duration::from_secs(1)).await;
 259         }
 260 }
 261
 262 async fn start_ldk() {
 263         let args = match cli::parse_startup_args() {
 264                 Ok(user_args) => user_args,
 265                 Err(()) => return,
 266         };
 267
 268         // Initialize the LDK data directory if necessary.
 269         let ldk_data_dir = format!("{}/.ldk", args.ldk_storage_dir_path);
 270         fs::create_dir_all(ldk_data_dir.clone()).unwrap();
 271
 272         // Initialize our bitcoind client.
 273         let bitcoind_client = match BitcoindClient::new(
 274                 args.bitcoind_rpc_host.clone(),
 275                 args.bitcoind_rpc_port,
 276                 args.bitcoind_rpc_username.clone(),
 277                 args.bitcoind_rpc_password.clone(),
 278         )
 279         .await
 280         {
 281                 Ok(client) => Arc::new(client),
 282                 Err(e) => {
 283                         println!("Failed to connect to bitcoind client: {}", e);
 284                         return;
 285                 }
 286         };
 287
 288         // ## Setup
 289         // Step 1: Initialize the FeeEstimator
 290
 291         // BitcoindClient implements the FeeEstimator trait, so it'll act as our fee estimator.
 292         let fee_estimator = bitcoind_client.clone();
 293
 294         // Step 2: Initialize the Logger
 295         let logger = Arc::new(FilesystemLogger::new(ldk_data_dir.clone()));
 296
 297         // Step 3: Initialize the BroadcasterInterface
 298
 299         // BitcoindClient implements the BroadcasterInterface trait, so it'll act as our transaction
 300         // broadcaster.
 301         let broadcaster = bitcoind_client.clone();
 302
 303         // Step 4: Initialize Persist
 304         let persister = Arc::new(FilesystemPersister::new(ldk_data_dir.clone()));
 305
 306         // Step 5: Initialize the ChainMonitor
 307         let chain_monitor: Arc<ChainMonitor> = Arc::new(chainmonitor::ChainMonitor::new(
 308                 None,
 309                 broadcaster.clone(),
 310                 logger.clone(),
 311                 fee_estimator.clone(),
 312                 persister.clone(),
 313         ));
 314
 315         // Step 6: Initialize the KeysManager
 316
 317         // The key seed that we use to derive the node privkey (that corresponds to the node pubkey) and
 318         // other secret key material.
 319         let keys_seed_path = format!("{}/keys_seed", ldk_data_dir.clone());
 320         let keys_seed = if let Ok(seed) = fs::read(keys_seed_path.clone()) {
 321                 assert_eq!(seed.len(), 32);
 322                 let mut key = [0; 32];
 323                 key.copy_from_slice(&seed);
 324                 key
 325         } else {
 326                 let mut key = [0; 32];
 327                 thread_rng().fill_bytes(&mut key);
 328                 match File::create(keys_seed_path.clone()) {
 329                         Ok(mut f) => {
 330                                 f.write_all(&key).expect("Failed to write node keys seed to disk");
 331                                 f.sync_all().expect("Failed to sync node keys seed to disk");
 332                         }
 333                         Err(e) => {
 334                                 println!("ERROR: Unable to create keys seed file {}: {}", keys_seed_path, e);
 335                                 return;
 336                         }
 337                 }
 338                 key
 339         };
 340         let cur = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap();
 341         let keys_manager = Arc::new(KeysManager::new(&keys_seed, cur.as_secs(), cur.subsec_nanos()));
 342
 343         // Step 7: Read ChannelMonitor state from disk
 344         let mut channelmonitors = persister.read_channelmonitors(keys_manager.clone()).unwrap();
 345
 346         // Step 9: Initialize the ChannelManager
 347         let user_config = UserConfig::default();
 348         let mut restarting_node = true;
 349         let (channel_manager_blockhash, mut channel_manager) = {
 350                 if let Ok(mut f) = fs::File::open(format!("{}/manager", ldk_data_dir.clone())) {
 351                         let mut channel_monitor_mut_references = Vec::new();
 352                         for (_, channel_monitor) in channelmonitors.iter_mut() {
 353                                 channel_monitor_mut_references.push(channel_monitor);
 354                         }
 355                         let read_args = ChannelManagerReadArgs::new(
 356                                 keys_manager.clone(),
 357                                 fee_estimator.clone(),
 358                                 chain_monitor.clone(),
 359                                 broadcaster.clone(),
 360                                 logger.clone(),
 361                                 user_config,
 362                                 channel_monitor_mut_references,
 363                         );
 364                         <(BlockHash, ChannelManager)>::read(&mut f, read_args).unwrap()
 365                 } else {
 366                         // We're starting a fresh node.
 367                         restarting_node = false;
 368                         let getinfo_resp = bitcoind_client.get_blockchain_info().await;
 369
 370                         let chain_params = ChainParameters {
 371                                 network: args.network,
 372                                 latest_hash: getinfo_resp.latest_blockhash,
 373                                 latest_height: getinfo_resp.latest_height,
 374                         };
 375                         let fresh_channel_manager = channelmanager::ChannelManager::new(
 376                                 fee_estimator.clone(),
 377                                 chain_monitor.clone(),
 378                                 broadcaster.clone(),
 379                                 logger.clone(),
 380                                 keys_manager.clone(),
 381                                 user_config,
 382                                 chain_params,
 383                         );
 384                         (getinfo_resp.latest_blockhash, fresh_channel_manager)
 385                 }
 386         };
 387
 388         // Step 10: Sync ChannelMonitors and ChannelManager to chain tip
 389         let mut chain_listener_channel_monitors = Vec::new();
 390         let mut cache = UnboundedCache::new();
 391         let mut chain_tip: Option<poll::ValidatedBlockHeader> = None;
 392         if restarting_node {
 393                 let mut chain_listeners =
 394                         vec![(channel_manager_blockhash, &mut channel_manager as &mut dyn chain::Listen)];
 395
 396                 for (blockhash, channel_monitor) in channelmonitors.drain(..) {
 397                         let outpoint = channel_monitor.get_funding_txo().0;
 398                         chain_listener_channel_monitors.push((
 399                                 blockhash,
 400                                 (channel_monitor, broadcaster.clone(), fee_estimator.clone(), logger.clone()),
 401                                 outpoint,
 402                         ));
 403                 }
 404
 405                 for monitor_listener_info in chain_listener_channel_monitors.iter_mut() {
 406                         chain_listeners.push((
 407                                 monitor_listener_info.0,
 408                                 &mut monitor_listener_info.1 as &mut dyn chain::Listen,
 409                         ));
 410                 }
 411                 chain_tip = Some(
 412                         init::synchronize_listeners(
 413                                 &mut bitcoind_client.deref(),
 414                                 args.network,
 415                                 &mut cache,
 416                                 chain_listeners,
 417                         )
 418                         .await
 419                         .unwrap(),
 420                 );
 421         }
 422
 423         // Step 11: Give ChannelMonitors to ChainMonitor
 424         for item in chain_listener_channel_monitors.drain(..) {
 425                 let channel_monitor = item.1 .0;
 426                 let funding_outpoint = item.2;
 427                 chain_monitor.watch_channel(funding_outpoint, channel_monitor).unwrap();
 428         }
 429
 430         // Step 13: Optional: Initialize the NetGraphMsgHandler
 431         // XXX persist routing data
 432         let genesis = genesis_block(args.network).header.block_hash();
 433         let router =
 434                 Arc::new(NetGraphMsgHandler::new(genesis, None::<Arc<dyn chain::Access>>, logger.clone()));
 435
 436         // Step 14: Initialize the PeerManager
 437         let channel_manager: Arc<ChannelManager> = Arc::new(channel_manager);
 438         let mut ephemeral_bytes = [0; 32];
 439         rand::thread_rng().fill_bytes(&mut ephemeral_bytes);
 440         let lightning_msg_handler =
 441                 MessageHandler { chan_handler: channel_manager.clone(), route_handler: router.clone() };
 442         let peer_manager: Arc<PeerManager> = Arc::new(PeerManager::new(
 443                 lightning_msg_handler,
 444                 keys_manager.get_node_secret(),
 445                 &ephemeral_bytes,
 446                 logger.clone(),
 447         ));
 448
 449         // ## Running LDK
 450         // Step 16: Initialize Peer Connection Handling
 451
 452         // We poll for events in handle_ldk_events(..) rather than waiting for them over the
 453         // mpsc::channel, so we can leave the event receiver as unused.
 454         let (event_ntfn_sender, _event_ntfn_receiver) = mpsc::channel(2);
 455         let peer_manager_connection_handler = peer_manager.clone();
 456         let event_notifier = event_ntfn_sender.clone();
 457         let listening_port = args.ldk_peer_listening_port;
 458         tokio::spawn(async move {
 459                 let listener = std::net::TcpListener::bind(format!("0.0.0.0:{}", listening_port)).unwrap();
 460                 loop {
 461                         let tcp_stream = listener.accept().unwrap().0;
 462                         lightning_net_tokio::setup_inbound(
 463                                 peer_manager_connection_handler.clone(),
 464                                 event_notifier.clone(),
 465                                 tcp_stream,
 466                         )
 467                         .await;
 468                 }
 469         });
 470
 471         // Step 17: Connect and Disconnect Blocks
 472         if chain_tip.is_none() {
 473                 chain_tip =
 474                         Some(init::validate_best_block_header(&mut bitcoind_client.deref()).await.unwrap());
 475         }
 476         let channel_manager_listener = channel_manager.clone();
 477         let chain_monitor_listener = chain_monitor.clone();
 478         let bitcoind_block_source = bitcoind_client.clone();
 479         let network = args.network;
 480         tokio::spawn(async move {
 481                 let mut derefed = bitcoind_block_source.deref();
 482                 let chain_poller = poll::ChainPoller::new(&mut derefed, network);
 483                 let chain_listener = (chain_monitor_listener, channel_manager_listener);
 484                 let mut spv_client =
 485                         SpvClient::new(chain_tip.unwrap(), chain_poller, &mut cache, &chain_listener);
 486                 loop {
 487                         spv_client.poll_best_tip().await.unwrap();
 488                         tokio::time::sleep(Duration::from_secs(1)).await;
 489                 }
 490         });
 491
 492         // Step 17 & 18: Initialize ChannelManager persistence & Once Per Minute: ChannelManager's
 493         // timer_chan_freshness_every_min() and PeerManager's timer_tick_occurred
 494         let data_dir = ldk_data_dir.clone();
 495         let persist_channel_manager_callback =
 496                 move |node: &ChannelManager| FilesystemPersister::persist_manager(data_dir.clone(), &*node);
 497         BackgroundProcessor::start(
 498                 persist_channel_manager_callback,
 499                 channel_manager.clone(),
 500                 peer_manager.clone(),
 501                 logger.clone(),
 502         );
 503
 504         // Step 15: Initialize LDK Event Handling
 505         let channel_manager_event_listener = channel_manager.clone();
 506         let chain_monitor_event_listener = chain_monitor.clone();
 507         let keys_manager_listener = keys_manager.clone();
 508         // TODO: persist payment info to disk
 509         let inbound_payments: PaymentInfoStorage = Arc::new(Mutex::new(HashMap::new()));
 510         let outbound_payments: PaymentInfoStorage = Arc::new(Mutex::new(HashMap::new()));
 511         let inbound_pmts_for_events = inbound_payments.clone();
 512         let outbound_pmts_for_events = outbound_payments.clone();
 513         let network = args.network;
 514         let bitcoind_rpc = bitcoind_client.clone();
 515         tokio::spawn(async move {
 516                 handle_ldk_events(
 517                         channel_manager_event_listener,
 518                         chain_monitor_event_listener,
 519                         bitcoind_rpc,
 520                         keys_manager_listener,
 521                         inbound_pmts_for_events,
 522                         outbound_pmts_for_events,
 523                         network,
 524                 )
 525                 .await;
 526         });
 527
 528         // Reconnect to channel peers if possible.
 529         let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
 530         match disk::read_channel_peer_data(Path::new(&peer_data_path)) {
 531                 Ok(mut info) => {
 532                         for (pubkey, peer_addr) in info.drain() {
 533                                 for chan_info in channel_manager.list_channels() {
 534                                         if pubkey == chan_info.remote_network_id {
 535                                                 let _ = cli::connect_peer_if_necessary(
 536                                                         pubkey,
 537                                                         peer_addr,
 538                                                         peer_manager.clone(),
 539                                                         event_ntfn_sender.clone(),
 540                                                 );
 541                                         }
 542                                 }
 543                         }
 544                 }
 545                 Err(e) => println!("ERROR: errored reading channel peer info from disk: {:?}", e),
 546         }
 547
 548         // Start the CLI.
 549         cli::poll_for_user_input(
 550                 peer_manager.clone(),
 551                 channel_manager.clone(),
 552                 router.clone(),
 553                 inbound_payments,
 554                 outbound_payments,
 555                 keys_manager.get_node_secret(),
 556                 event_ntfn_sender,
 557                 ldk_data_dir.clone(),
 558                 logger.clone(),
 559                 args.network,
 560         )
 561         .await;
 562 }
 563
 564 #[tokio::main]
 565 pub async fn main() {
 566         start_ldk().await;
 567 }