do_connect_block(node, block, false);
}
+fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
+ // Ensure `get_claimable_balances`' self-tests never panic
+ for funding_outpoint in node.chain_monitor.chain_monitor.list_monitors() {
+ node.chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances();
+ }
+}
+
fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, skip_intermediaries: bool) {
+ call_claimable_balances(node);
let height = node.best_block_info().1 + 1;
if !skip_intermediaries {
let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
match *node.connect_style.borrow() {
ConnectStyle::BestBlockFirst|ConnectStyle::BestBlockFirstSkippingBlocks => {
node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
+ call_claimable_balances(node);
node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
node.node.best_block_updated(&block.header, height);
node.node.transactions_confirmed(&block.header, &txdata, height);
},
ConnectStyle::TransactionsFirst|ConnectStyle::TransactionsFirstSkippingBlocks => {
node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
+ call_claimable_balances(node);
node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
node.node.transactions_confirmed(&block.header, &txdata, height);
node.node.best_block_updated(&block.header, height);
}
}
}
+ call_claimable_balances(node);
node.node.test_process_background_events();
node.blocks.lock().unwrap().push((block.header, height));
}
pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32) {
+ call_claimable_balances(node);
for i in 0..count {
let orig_header = node.blocks.lock().unwrap().pop().unwrap();
assert!(orig_header.1 > 0); // Cannot disconnect genesis
node.node.best_block_updated(&prev_header.0, prev_header.1);
},
}
+ call_claimable_balances(node);
}
}
do_test_claim_value_force_close(true);
do_test_claim_value_force_close(false);
}
+
+#[test]
+fn test_balances_on_local_commitment_htlcs() {
+ // Previously, when handling the broadcast of a local commitment transactions (with associated
+ // CSV delays prior to spendability), we incorrectly handled the CSV delays on HTLC
+ // transactions. This caused us to miss spendable outputs for HTLCs which were awaiting a CSV
+ // delay prior to spendability.
+ //
+ // Further, because of this, we could hit an assertion as `get_claimable_balances` asserted
+ // that HTLCs were resolved after the funding spend was resolved, which was not true if the
+ // HTLC did not have a CSV delay attached (due to the above bug or due to it being an HTLC
+ // claim by our counterparty).
+ 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 mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+ // Create a single channel with two pending HTLCs from nodes[0] to nodes[1], one which nodes[1]
+ // knows the preimage for, one which it does not.
+ let (_, _, chan_id, funding_tx) = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, InitFeatures::known(), InitFeatures::known());
+ let funding_outpoint = OutPoint { txid: funding_tx.txid(), index: 0 };
+
+ let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 10_000_000);
+ let htlc_cltv_timeout = nodes[0].best_block_info().1 + TEST_FINAL_CLTV + 1; // Note ChannelManager adds one to CLTV timeouts for safety
+ nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret)).unwrap();
+ check_added_monitors!(nodes[0], 1);
+
+ let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
+ nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
+ commitment_signed_dance!(nodes[1], nodes[0], updates.commitment_signed, false);
+
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ expect_payment_received!(nodes[1], payment_hash, payment_secret, 10_000_000);
+
+ let (route_2, payment_hash_2, payment_preimage_2, payment_secret_2) = get_route_and_payment_hash!(nodes[0], nodes[1], 20_000_000);
+ nodes[0].node.send_payment(&route_2, payment_hash_2, &Some(payment_secret_2)).unwrap();
+ check_added_monitors!(nodes[0], 1);
+
+ let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
+ nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
+ commitment_signed_dance!(nodes[1], nodes[0], updates.commitment_signed, false);
+
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ expect_payment_received!(nodes[1], payment_hash_2, payment_secret_2, 20_000_000);
+ assert!(nodes[1].node.claim_funds(payment_preimage_2));
+ get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
+ check_added_monitors!(nodes[1], 1);
+
+ let chan_feerate = get_feerate!(nodes[0], chan_id) as u64;
+ let opt_anchors = get_opt_anchors!(nodes[0], chan_id);
+
+ // Get nodes[0]'s commitment transaction and HTLC-Timeout transactions
+ let as_txn = get_local_commitment_txn!(nodes[0], chan_id);
+ assert_eq!(as_txn.len(), 3);
+ check_spends!(as_txn[1], as_txn[0]);
+ check_spends!(as_txn[2], as_txn[0]);
+ check_spends!(as_txn[0], funding_tx);
+
+ // First confirm the commitment transaction on nodes[0], which should leave us with three
+ // claimable balances.
+ let node_a_commitment_claimable = nodes[0].best_block_info().1 + BREAKDOWN_TIMEOUT as u32;
+ mine_transaction(&nodes[0], &as_txn[0]);
+ check_added_monitors!(nodes[0], 1);
+ check_closed_broadcast!(nodes[0], true);
+ check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+
+ assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 1_000_000 - 10_000 - 20_000 - chan_feerate *
+ (channel::commitment_tx_base_weight(opt_anchors) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+ confirmation_height: node_a_commitment_claimable,
+ }, Balance::MaybeClaimableHTLCAwaitingTimeout {
+ claimable_amount_satoshis: 10_000,
+ claimable_height: htlc_cltv_timeout,
+ }, Balance::MaybeClaimableHTLCAwaitingTimeout {
+ claimable_amount_satoshis: 20_000,
+ claimable_height: htlc_cltv_timeout,
+ }]),
+ sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
+
+ // Get nodes[1]'s HTLC claim tx for the second HTLC
+ mine_transaction(&nodes[1], &as_txn[0]);
+ check_added_monitors!(nodes[1], 1);
+ check_closed_broadcast!(nodes[1], true);
+ check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+ let bs_htlc_claim_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
+ assert_eq!(bs_htlc_claim_txn.len(), 3);
+ check_spends!(bs_htlc_claim_txn[0], as_txn[0]);
+ check_spends!(bs_htlc_claim_txn[1], funding_tx);
+ check_spends!(bs_htlc_claim_txn[2], bs_htlc_claim_txn[1]);
+
+ // Connect blocks until the HTLCs expire, allowing us to (validly) broadcast the HTLC-Timeout
+ // transaction.
+ connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1);
+ assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 1_000_000 - 10_000 - 20_000 - chan_feerate *
+ (channel::commitment_tx_base_weight(opt_anchors) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+ confirmation_height: node_a_commitment_claimable,
+ }, Balance::MaybeClaimableHTLCAwaitingTimeout {
+ claimable_amount_satoshis: 10_000,
+ claimable_height: htlc_cltv_timeout,
+ }, Balance::MaybeClaimableHTLCAwaitingTimeout {
+ claimable_amount_satoshis: 20_000,
+ claimable_height: htlc_cltv_timeout,
+ }]),
+ sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
+ assert_eq!(as_txn[1].lock_time, nodes[0].best_block_info().1 + 1); // as_txn[1] can be included in the next block
+
+ // Now confirm nodes[0]'s HTLC-Timeout transaction, which changes the claimable balance to an
+ // "awaiting confirmations" one.
+ let node_a_htlc_claimable = nodes[0].best_block_info().1 + BREAKDOWN_TIMEOUT as u32;
+ mine_transaction(&nodes[0], &as_txn[1]);
+ // Note that prior to the fix in the commit which introduced this test, this (and the next
+ // balance) check failed. With this check removed, the code panicked in the `connect_blocks`
+ // call, as described, two hunks down.
+ assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 1_000_000 - 10_000 - 20_000 - chan_feerate *
+ (channel::commitment_tx_base_weight(opt_anchors) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+ confirmation_height: node_a_commitment_claimable,
+ }, Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 10_000,
+ confirmation_height: node_a_htlc_claimable,
+ }, Balance::MaybeClaimableHTLCAwaitingTimeout {
+ claimable_amount_satoshis: 20_000,
+ claimable_height: htlc_cltv_timeout,
+ }]),
+ sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
+
+ // Now confirm nodes[1]'s HTLC claim, giving nodes[0] the preimage. Note that the "maybe
+ // claimable" balance remains until we see ANTI_REORG_DELAY blocks.
+ mine_transaction(&nodes[0], &bs_htlc_claim_txn[0]);
+ expect_payment_sent!(nodes[0], payment_preimage_2);
+ assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 1_000_000 - 10_000 - 20_000 - chan_feerate *
+ (channel::commitment_tx_base_weight(opt_anchors) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+ confirmation_height: node_a_commitment_claimable,
+ }, Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 10_000,
+ confirmation_height: node_a_htlc_claimable,
+ }, Balance::MaybeClaimableHTLCAwaitingTimeout {
+ claimable_amount_satoshis: 20_000,
+ claimable_height: htlc_cltv_timeout,
+ }]),
+ sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
+
+ // Finally make the HTLC transactions have ANTI_REORG_DELAY blocks. This call previously
+ // panicked as described in the test introduction. This will remove the "maybe claimable"
+ // spendable output as nodes[1] has fully claimed the second HTLC.
+ connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
+ expect_payment_failed!(nodes[0], payment_hash, true);
+
+ assert_eq!(sorted_vec(vec![Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 1_000_000 - 10_000 - 20_000 - chan_feerate *
+ (channel::commitment_tx_base_weight(opt_anchors) + 2 * channel::COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000,
+ confirmation_height: node_a_commitment_claimable,
+ }, Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 10_000,
+ confirmation_height: node_a_htlc_claimable,
+ }]),
+ sorted_vec(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances()));
+
+ // Connect blocks until the commitment transaction's CSV expires, providing us the relevant
+ // `SpendableOutputs` event and removing the claimable balance entry.
+ connect_blocks(&nodes[0], node_a_commitment_claimable - nodes[0].best_block_info().1);
+ assert_eq!(vec![Balance::ClaimableAwaitingConfirmations {
+ claimable_amount_satoshis: 10_000,
+ confirmation_height: node_a_htlc_claimable,
+ }],
+ nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances());
+ let mut node_a_spendable = nodes[0].chain_monitor.chain_monitor.get_and_clear_pending_events();
+ assert_eq!(node_a_spendable.len(), 1);
+ if let Event::SpendableOutputs { outputs } = node_a_spendable.pop().unwrap() {
+ assert_eq!(outputs.len(), 1);
+ let spend_tx = nodes[0].keys_manager.backing.spend_spendable_outputs(&[&outputs[0]], Vec::new(),
+ Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &Secp256k1::new()).unwrap();
+ check_spends!(spend_tx, as_txn[0]);
+ }
+
+ // Connect blocks until the HTLC-Timeout's CSV expires, providing us the relevant
+ // `SpendableOutputs` event and removing the claimable balance entry.
+ connect_blocks(&nodes[0], node_a_htlc_claimable - nodes[0].best_block_info().1);
+ assert!(nodes[0].chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances().is_empty());
+ let mut node_a_spendable = nodes[0].chain_monitor.chain_monitor.get_and_clear_pending_events();
+ assert_eq!(node_a_spendable.len(), 1);
+ if let Event::SpendableOutputs { outputs } = node_a_spendable.pop().unwrap() {
+ assert_eq!(outputs.len(), 1);
+ let spend_tx = nodes[0].keys_manager.backing.spend_spendable_outputs(&[&outputs[0]], Vec::new(),
+ Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &Secp256k1::new()).unwrap();
+ check_spends!(spend_tx, as_txn[1]);
+ }
+}
projects / rust-lightning / commitdiff