_ Git - rust-lightning/blob - lightning/src/ln/priv_short_conf_tests.rs

   1 // This file is Copyright its original authors, visible in version control
   2 // history.
   3 //
   4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
   5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
   7 // You may not use this file except in accordance with one or both of these
   8 // licenses.
   9
  10 //! Tests that test ChannelManager behavior with fewer confirmations required than the default and
  11 //! other behavior that exists only on private channels or with a semi-trusted counterparty (eg
  12 //! LSP).
  13
  14 use chain::Watch;
  15 use chain::channelmonitor::ChannelMonitor;
  16 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, MIN_CLTV_EXPIRY_DELTA};
  17 use routing::network_graph::RoutingFees;
  18 use routing::router::{RouteHint, RouteHintHop};
  19 use ln::features::InitFeatures;
  20 use ln::msgs;
  21 use ln::msgs::{ChannelMessageHandler, RoutingMessageHandler};
  22 use util::enforcing_trait_impls::EnforcingSigner;
  23 use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
  24 use util::config::UserConfig;
  25 use util::ser::{Writeable, ReadableArgs};
  26 use util::test_utils;
  27
  28 use prelude::*;
  29 use core::default::Default;
  30
  31 use ln::functional_test_utils::*;
  32
  33 use bitcoin::hash_types::BlockHash;
  34
  35 #[test]
  36 fn test_priv_forwarding_rejection() {
  37         // If we have a private channel with outbound liquidity, and
  38         // UserConfig::accept_forwards_to_priv_channels is set to false, we should reject any attempts
  39         // to forward through that channel.
  40         let chanmon_cfgs = create_chanmon_cfgs(3);
  41         let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
  42         let mut no_announce_cfg = test_default_channel_config();
  43         no_announce_cfg.accept_forwards_to_priv_channels = false;
  44         let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, Some(no_announce_cfg), None]);
  45         let persister: test_utils::TestPersister;
  46         let new_chain_monitor: test_utils::TestChainMonitor;
  47         let nodes_1_deserialized: ChannelManager<EnforcingSigner, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>;
  48         let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
  49
  50         let chan_id_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known()).2;
  51         let chan_id_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known()).0.channel_id;
  52
  53         // We should always be able to forward through nodes[1] as long as its out through a public
  54         // channel:
  55         send_payment(&nodes[2], &[&nodes[1], &nodes[0]], 10_000);
  56
  57         // ... however, if we send to nodes[2], we will have to pass the private channel from nodes[1]
  58         // to nodes[2], which should be rejected:
  59         let route_hint = RouteHint(vec![RouteHintHop {
  60                 src_node_id: nodes[1].node.get_our_node_id(),
  61                 short_channel_id: nodes[2].node.list_channels()[0].short_channel_id.unwrap(),
  62                 fees: RoutingFees { base_msat: 1000, proportional_millionths: 0 },
  63                 cltv_expiry_delta: MIN_CLTV_EXPIRY_DELTA,
  64                 htlc_minimum_msat: None,
  65                 htlc_maximum_msat: None,
  66         }]);
  67         let last_hops = vec![route_hint];
  68         let (route, our_payment_hash, our_payment_preimage, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], last_hops, 10_000, TEST_FINAL_CLTV);
  69
  70         nodes[0].node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap();
  71         check_added_monitors!(nodes[0], 1);
  72         let payment_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
  73         nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
  74         commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false, true);
  75
  76         let htlc_fail_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
  77         assert!(htlc_fail_updates.update_add_htlcs.is_empty());
  78         assert_eq!(htlc_fail_updates.update_fail_htlcs.len(), 1);
  79         assert!(htlc_fail_updates.update_fail_malformed_htlcs.is_empty());
  80         assert!(htlc_fail_updates.update_fee.is_none());
  81
  82         nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &htlc_fail_updates.update_fail_htlcs[0]);
  83         commitment_signed_dance!(nodes[0], nodes[1], htlc_fail_updates.commitment_signed, true, true);
  84         expect_payment_failed_with_update!(nodes[0], our_payment_hash, false, nodes[2].node.list_channels()[0].short_channel_id.unwrap(), true);
  85
  86         // Now disconnect nodes[1] from its peers and restart with accept_forwards_to_priv_channels set
  87         // to true. Sadly there is currently no way to change it at runtime.
  88
  89         nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
  90         nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
  91
  92         let nodes_1_serialized = nodes[1].node.encode();
  93         let mut monitor_a_serialized = test_utils::TestVecWriter(Vec::new());
  94         let mut monitor_b_serialized = test_utils::TestVecWriter(Vec::new());
  95         get_monitor!(nodes[1], chan_id_1).write(&mut monitor_a_serialized).unwrap();
  96         get_monitor!(nodes[1], chan_id_2).write(&mut monitor_b_serialized).unwrap();
  97
  98         persister = test_utils::TestPersister::new();
  99         let keys_manager = &chanmon_cfgs[1].keys_manager;
 100         new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[1].chain_source), nodes[1].tx_broadcaster.clone(), nodes[1].logger, node_cfgs[1].fee_estimator, &persister, keys_manager);
 101         nodes[1].chain_monitor = &new_chain_monitor;
 102
 103         let mut monitor_a_read = &monitor_a_serialized.0[..];
 104         let mut monitor_b_read = &monitor_b_serialized.0[..];
 105         let (_, mut monitor_a) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(&mut monitor_a_read, keys_manager).unwrap();
 106         let (_, mut monitor_b) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(&mut monitor_b_read, keys_manager).unwrap();
 107         assert!(monitor_a_read.is_empty());
 108         assert!(monitor_b_read.is_empty());
 109
 110         no_announce_cfg.accept_forwards_to_priv_channels = true;
 111
 112         let mut nodes_1_read = &nodes_1_serialized[..];
 113         let (_, nodes_1_deserialized_tmp) = {
 114                 let mut channel_monitors = HashMap::new();
 115                 channel_monitors.insert(monitor_a.get_funding_txo().0, &mut monitor_a);
 116                 channel_monitors.insert(monitor_b.get_funding_txo().0, &mut monitor_b);
 117                 <(BlockHash, ChannelManager<EnforcingSigner, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_1_read, ChannelManagerReadArgs {
 118                         default_config: no_announce_cfg,
 119                         keys_manager,
 120                         fee_estimator: node_cfgs[1].fee_estimator,
 121                         chain_monitor: nodes[1].chain_monitor,
 122                         tx_broadcaster: nodes[1].tx_broadcaster.clone(),
 123                         logger: nodes[1].logger,
 124                         channel_monitors,
 125                 }).unwrap()
 126         };
 127         assert!(nodes_1_read.is_empty());
 128         nodes_1_deserialized = nodes_1_deserialized_tmp;
 129
 130         assert!(nodes[1].chain_monitor.watch_channel(monitor_a.get_funding_txo().0, monitor_a).is_ok());
 131         assert!(nodes[1].chain_monitor.watch_channel(monitor_b.get_funding_txo().0, monitor_b).is_ok());
 132         check_added_monitors!(nodes[1], 2);
 133         nodes[1].node = &nodes_1_deserialized;
 134
 135         nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::known() });
 136         nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
 137         let as_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
 138         let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
 139         nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish);
 140         nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
 141         get_event_msg!(nodes[0], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
 142         get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[0].node.get_our_node_id());
 143
 144         nodes[1].node.peer_connected(&nodes[2].node.get_our_node_id(), &msgs::Init { features: InitFeatures::known() });
 145         nodes[2].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
 146         let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[2].node.get_our_node_id());
 147         let cs_reestablish = get_event_msg!(nodes[2], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
 148         nodes[2].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
 149         nodes[1].node.handle_channel_reestablish(&nodes[2].node.get_our_node_id(), &cs_reestablish);
 150         get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[2].node.get_our_node_id());
 151         get_event_msg!(nodes[2], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
 152
 153         nodes[0].node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap();
 154         check_added_monitors!(nodes[0], 1);
 155         pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], 10_000, our_payment_hash, our_payment_secret);
 156         claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], our_payment_preimage);
 157 }
 158
 159 fn do_test_1_conf_open(connect_style: ConnectStyle) {
 160         // Previously, if the minium_depth config was set to 1, we'd never send a funding_locked. This
 161         // tests that we properly send one in that case.
 162         let mut alice_config = UserConfig::default();
 163         alice_config.own_channel_config.minimum_depth = 1;
 164         alice_config.channel_options.announced_channel = true;
 165         alice_config.peer_channel_config_limits.force_announced_channel_preference = false;
 166         let mut bob_config = UserConfig::default();
 167         bob_config.own_channel_config.minimum_depth = 1;
 168         bob_config.channel_options.announced_channel = true;
 169         bob_config.peer_channel_config_limits.force_announced_channel_preference = false;
 170         let chanmon_cfgs = create_chanmon_cfgs(2);
 171         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 172         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(alice_config), Some(bob_config)]);
 173         let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 174         *nodes[0].connect_style.borrow_mut() = connect_style;
 175
 176         let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known());
 177         mine_transaction(&nodes[1], &tx);
 178         nodes[0].node.handle_funding_locked(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendFundingLocked, nodes[0].node.get_our_node_id()));
 179         assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
 180
 181         mine_transaction(&nodes[0], &tx);
 182         let as_msg_events = nodes[0].node.get_and_clear_pending_msg_events();
 183         assert_eq!(as_msg_events.len(), 2);
 184         let as_funding_locked = if let MessageSendEvent::SendFundingLocked { ref node_id, ref msg } = as_msg_events[0] {
 185                 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
 186                 msg.clone()
 187         } else { panic!("Unexpected event"); };
 188         if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = as_msg_events[1] {
 189                 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
 190         } else { panic!("Unexpected event"); }
 191
 192         nodes[1].node.handle_funding_locked(&nodes[0].node.get_our_node_id(), &as_funding_locked);
 193         let bs_msg_events = nodes[1].node.get_and_clear_pending_msg_events();
 194         assert_eq!(bs_msg_events.len(), 1);
 195         if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = bs_msg_events[0] {
 196                 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
 197         } else { panic!("Unexpected event"); }
 198
 199         send_payment(&nodes[0], &[&nodes[1]], 100_000);
 200
 201         // After 6 confirmations, as required by the spec, we'll send announcement_signatures and
 202         // broadcast the channel_announcement (but not before exactly 6 confirmations).
 203         connect_blocks(&nodes[0], 4);
 204         assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
 205         connect_blocks(&nodes[0], 1);
 206         nodes[1].node.handle_announcement_signatures(&nodes[0].node.get_our_node_id(), &get_event_msg!(nodes[0], MessageSendEvent::SendAnnouncementSignatures, nodes[1].node.get_our_node_id()));
 207         assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
 208
 209         connect_blocks(&nodes[1], 5);
 210         let bs_announce_events = nodes[1].node.get_and_clear_pending_msg_events();
 211         assert_eq!(bs_announce_events.len(), 2);
 212         let bs_announcement_sigs = if let MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } = bs_announce_events[0] {
 213                 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
 214                 msg.clone()
 215         } else { panic!("Unexpected event"); };
 216         let (bs_announcement, bs_update) = if let MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } = bs_announce_events[1] {
 217                 (msg.clone(), update_msg.clone())
 218         } else { panic!("Unexpected event"); };
 219
 220         nodes[0].node.handle_announcement_signatures(&nodes[1].node.get_our_node_id(), &bs_announcement_sigs);
 221         let as_announce_events = nodes[0].node.get_and_clear_pending_msg_events();
 222         assert_eq!(as_announce_events.len(), 1);
 223         let (announcement, as_update) = if let MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } = as_announce_events[0] {
 224                 (msg.clone(), update_msg.clone())
 225         } else { panic!("Unexpected event"); };
 226         assert_eq!(announcement, bs_announcement);
 227
 228         for node in nodes {
 229                 assert!(node.net_graph_msg_handler.handle_channel_announcement(&announcement).unwrap());
 230                 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
 231                 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
 232         }
 233 }
 234 #[test]
 235 fn test_1_conf_open() {
 236         do_test_1_conf_open(ConnectStyle::BestBlockFirst);
 237         do_test_1_conf_open(ConnectStyle::TransactionsFirst);
 238         do_test_1_conf_open(ConnectStyle::FullBlockViaListen);
 239 }