X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Freorg_tests.rs;h=b19a355d8f1acd6eca7115c79334f4788ee7fed6;hb=af49a60e2d53945b7c6d9d6e425b9b6de6a1843e;hp=7f76ea5b3d31c88a8401eac2ff0fdbd722ede5e2;hpb=6cd6816cd7efce593ef487d07adfff66cee0daa2;p=rust-lightning diff --git a/lightning/src/ln/reorg_tests.rs b/lightning/src/ln/reorg_tests.rs index 7f76ea5b..b19a355d 100644 --- a/lightning/src/ln/reorg_tests.rs +++ b/lightning/src/ln/reorg_tests.rs @@ -9,14 +9,22 @@ //! Further functional tests which test blockchain reorganizations. -use chain::channelmonitor::ANTI_REORG_DELAY; +use chain::channelmonitor::{ANTI_REORG_DELAY, ChannelMonitor}; +use chain::Watch; +use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs}; use ln::features::InitFeatures; use ln::msgs::{ChannelMessageHandler, ErrorAction, HTLCFailChannelUpdate}; +use util::config::UserConfig; +use util::enforcing_trait_impls::EnforcingSigner; use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider}; +use util::test_utils; +use util::ser::{ReadableArgs, Writeable}; use bitcoin::blockdata::block::{Block, BlockHeader}; +use bitcoin::hash_types::BlockHash; -use std::default::Default; +use std::collections::HashMap; +use std::mem; use ln::functional_test_utils::*; @@ -180,3 +188,206 @@ fn test_onchain_htlc_claim_reorg_remote_commitment() { fn test_onchain_htlc_timeout_delay_remote_commitment() { do_test_onchain_htlc_reorg(false, false); } + +fn do_test_unconf_chan(reload_node: bool, reorg_after_reload: bool) { + // After creating a chan between nodes, we disconnect all blocks previously seen to force a + // channel close on nodes[0] side. We also use this to provide very basic testing of logic + // around freeing background events which store monitor updates during block_[dis]connected. + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let persister: test_utils::TestPersister; + let new_chain_monitor: test_utils::TestChainMonitor; + let nodes_0_deserialized: ChannelManager; + let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); + let chan_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2; + + let channel_state = nodes[0].node.channel_state.lock().unwrap(); + assert_eq!(channel_state.by_id.len(), 1); + assert_eq!(channel_state.short_to_id.len(), 1); + mem::drop(channel_state); + + let mut headers = Vec::new(); + let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + headers.push(header.clone()); + for _i in 2..100 { + header = BlockHeader { version: 0x20000000, prev_blockhash: header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + headers.push(header.clone()); + } + if !reorg_after_reload { + while !headers.is_empty() { + nodes[0].node.block_disconnected(&headers.pop().unwrap()); + } + check_closed_broadcast!(nodes[0], false); + { + let channel_state = nodes[0].node.channel_state.lock().unwrap(); + assert_eq!(channel_state.by_id.len(), 0); + assert_eq!(channel_state.short_to_id.len(), 0); + } + } + + if reload_node { + // Since we currently have a background event pending, it's good to test that we survive a + // serialization roundtrip. Further, this tests the somewhat awkward edge-case of dropping + // the Channel object from the ChannelManager, but still having a monitor event pending for + // it when we go to deserialize, and then use the ChannelManager. + let nodes_0_serialized = nodes[0].node.encode(); + let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new()); + nodes[0].chain_monitor.chain_monitor.monitors.read().unwrap().iter().next().unwrap().1.write(&mut chan_0_monitor_serialized).unwrap(); + + persister = test_utils::TestPersister::new(); + let keys_manager = &chanmon_cfgs[0].keys_manager; + new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[0].chain_source), nodes[0].tx_broadcaster.clone(), nodes[0].logger, node_cfgs[0].fee_estimator, &persister, keys_manager); + nodes[0].chain_monitor = &new_chain_monitor; + let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..]; + let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor)>::read( + &mut chan_0_monitor_read, keys_manager).unwrap(); + assert!(chan_0_monitor_read.is_empty()); + + let mut nodes_0_read = &nodes_0_serialized[..]; + let config = UserConfig::default(); + nodes_0_deserialized = { + let mut channel_monitors = HashMap::new(); + channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor); + <(BlockHash, ChannelManager)>::read( + &mut nodes_0_read, ChannelManagerReadArgs { + default_config: config, + keys_manager, + fee_estimator: node_cfgs[0].fee_estimator, + chain_monitor: nodes[0].chain_monitor, + tx_broadcaster: nodes[0].tx_broadcaster.clone(), + logger: nodes[0].logger, + channel_monitors, + }).unwrap().1 + }; + nodes[0].node = &nodes_0_deserialized; + assert!(nodes_0_read.is_empty()); + + nodes[0].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0.clone(), chan_0_monitor).unwrap(); + check_added_monitors!(nodes[0], 1); + } + + if reorg_after_reload { + while !headers.is_empty() { + nodes[0].node.block_disconnected(&headers.pop().unwrap()); + } + check_closed_broadcast!(nodes[0], false); + { + let channel_state = nodes[0].node.channel_state.lock().unwrap(); + assert_eq!(channel_state.by_id.len(), 0); + assert_eq!(channel_state.short_to_id.len(), 0); + } + } + + // With expect_channel_force_closed set the TestChainMonitor will enforce that the next update + // is a ChannelForcClosed on the right channel with should_broadcast set. + *nodes[0].chain_monitor.expect_channel_force_closed.lock().unwrap() = Some((chan_id, true)); + nodes[0].node.test_process_background_events(); // Required to free the pending background monitor update + check_added_monitors!(nodes[0], 1); +} + +#[test] +fn test_unconf_chan() { + do_test_unconf_chan(true, true); + do_test_unconf_chan(false, true); + do_test_unconf_chan(true, false); + do_test_unconf_chan(false, false); +} + +#[test] +fn test_set_outpoints_partial_claiming() { + // - remote party claim tx, new bump tx + // - disconnect remote claiming tx, new bump + // - disconnect tx, see no tx anymore + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, InitFeatures::known(), InitFeatures::known()); + let payment_preimage_1 = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0; + let payment_preimage_2 = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0; + + // Remote commitment txn with 4 outputs: to_local, to_remote, 2 outgoing HTLC + let remote_txn = get_local_commitment_txn!(nodes[1], chan.2); + assert_eq!(remote_txn.len(), 3); + assert_eq!(remote_txn[0].output.len(), 4); + assert_eq!(remote_txn[0].input.len(), 1); + assert_eq!(remote_txn[0].input[0].previous_output.txid, chan.3.txid()); + check_spends!(remote_txn[1], remote_txn[0]); + check_spends!(remote_txn[2], remote_txn[0]); + + // Connect blocks on node A to advance height towards TEST_FINAL_CLTV + let prev_header_100 = connect_blocks(&nodes[1], 100, 0, false, Default::default()); + // Provide node A with both preimage + nodes[0].node.claim_funds(payment_preimage_1, &None, 3_000_000); + nodes[0].node.claim_funds(payment_preimage_2, &None, 3_000_000); + check_added_monitors!(nodes[0], 2); + nodes[0].node.get_and_clear_pending_events(); + nodes[0].node.get_and_clear_pending_msg_events(); + + // Connect blocks on node A commitment transaction + let header = BlockHeader { version: 0x20000000, prev_blockhash: prev_header_100, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + connect_block(&nodes[0], &Block { header, txdata: vec![remote_txn[0].clone()] }, 101); + check_closed_broadcast!(nodes[0], false); + check_added_monitors!(nodes[0], 1); + // Verify node A broadcast tx claiming both HTLCs + { + let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); + // ChannelMonitor: claim tx, ChannelManager: local commitment tx + HTLC-Success*2 + assert_eq!(node_txn.len(), 4); + check_spends!(node_txn[0], remote_txn[0]); + check_spends!(node_txn[1], chan.3); + check_spends!(node_txn[2], node_txn[1]); + check_spends!(node_txn[3], node_txn[1]); + assert_eq!(node_txn[0].input.len(), 2); + node_txn.clear(); + } + + // Connect blocks on node B + connect_blocks(&nodes[1], 135, 0, false, Default::default()); + check_closed_broadcast!(nodes[1], false); + check_added_monitors!(nodes[1], 1); + // Verify node B broadcast 2 HTLC-timeout txn + let partial_claim_tx = { + let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); + assert_eq!(node_txn.len(), 3); + check_spends!(node_txn[1], node_txn[0]); + check_spends!(node_txn[2], node_txn[0]); + assert_eq!(node_txn[1].input.len(), 1); + assert_eq!(node_txn[2].input.len(), 1); + node_txn[1].clone() + }; + + // Broadcast partial claim on node A, should regenerate a claiming tx with HTLC dropped + let header = BlockHeader { version: 0x20000000, prev_blockhash: header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + connect_block(&nodes[0], &Block { header, txdata: vec![partial_claim_tx.clone()] }, 102); + { + let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); + assert_eq!(node_txn.len(), 1); + check_spends!(node_txn[0], remote_txn[0]); + assert_eq!(node_txn[0].input.len(), 1); //dropped HTLC + node_txn.clear(); + } + nodes[0].node.get_and_clear_pending_msg_events(); + + // Disconnect last block on node A, should regenerate a claiming tx with HTLC dropped + disconnect_block(&nodes[0], &header, 102); + { + let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); + assert_eq!(node_txn.len(), 1); + check_spends!(node_txn[0], remote_txn[0]); + assert_eq!(node_txn[0].input.len(), 2); //resurrected HTLC + node_txn.clear(); + } + + //// Disconnect one more block and then reconnect multiple no transaction should be generated + disconnect_block(&nodes[0], &header, 101); + connect_blocks(&nodes[1], 15, 101, false, prev_header_100); + { + let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); + assert_eq!(node_txn.len(), 0); + node_txn.clear(); + } +}