Correct input comparison for input-subset RBF bump creation

This resolves a regression introduced in "Implement bumping engine in
ChannelMonitor::block_connected" in which not all inputs are checked.
Several opportunities to clarify and clean up comments are also taken.

Fix test_bump_penalty_txn_on_revoked_htlcs as now remote claim txn
build the same way than us are going to be register as cleaning
pending_claim_request after ANTI_REORG_DELAY. It means during this
delay we are going to generate invalid bumped claiming txn on
already claimed outpoints. Previously these txn weren't issued
because all their outpoints would have been removed.

Fix full_stack_target by adding more input for FuzzEstimator

diff --git a/fuzz/fuzz_targets/full_stack_target.rs b/fuzz/fuzz_targets/full_stack_target.rs
index 5198cf40a9f4cfa99ce5d643a025e438f6dbde7c..cf70569a3f7ac4c1866e5ee081c9660ca260400c 100644 (file)
--- a/fuzz/fuzz_targets/full_stack_target.rs
+++ b/fuzz/fuzz_targets/full_stack_target.rs
@@ -879,7 +879,7 @@ mod tests {
                // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
 
                let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
-               super::do_test(&::hex::decode("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&(Arc::clone(&logger) as Arc<dyn Logger>));
+               super::do_test(&::hex::decode("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&(Arc::clone(&logger) as Arc<dyn Logger>));
 
                let log_entries = logger.lines.lock().unwrap();
                assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendAcceptChannel event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679".to_string())), Some(&1)); // 1

diff --git a/lightning/src/ln/channelmonitor.rs b/lightning/src/ln/channelmonitor.rs
index ed532e1f025e0a5e6355bbc4585de507449e3a35..0084cbb26e798fc830b74b6a6cdabd47daed9b77 100644 (file)
--- a/lightning/src/ln/channelmonitor.rs
+++ b/lightning/src/ln/channelmonitor.rs
@@ -2394,8 +2394,7 @@ impl ChannelMonitor {
                        }
 
                        // Scan all input to verify is one of the outpoint spent is of interest for us
-                       let mut claimed_outpoints = Vec::new();
-                       let mut claimed_input_material = Vec::new();
+                       let mut claimed_outputs_material = Vec::new();
                        for inp in &tx.input {
                                if let Some(ancestor_claimable_txid) = self.claimable_outpoints.get(&inp.previous_output) {
                                        // If outpoint has claim request pending on it...
@@ -2403,12 +2402,21 @@ impl ChannelMonitor {
                                                //... we need to verify equality between transaction outpoints and claim request
                                                // outpoints to know if transaction is the original claim or a bumped one issued
                                                // by us.
-                                               for claim_inp in claim_material.per_input_material.keys() {
-                                                       if *claim_inp == inp.previous_output {
-                                                               claimed_outpoints.push(inp.previous_output.clone());
+                                               let mut set_equality = true;
+                                               if claim_material.per_input_material.len() != tx.input.len() {
+                                                       set_equality = false;
+                                               } else {
+                                                       for (claim_inp, tx_inp) in claim_material.per_input_material.keys().zip(tx.input.iter()) {
+                                                               if *claim_inp != tx_inp.previous_output {
+                                                                       set_equality = false;
+                                                               }
                                                        }
                                                }
-                                               if claimed_outpoints.len() == 0 && claim_material.per_input_material.len() == tx.input.len() { // If true, register claim request to be removed after reaching a block security height
+
+                                               // If this is our transaction (or our counterparty spent all the outputs
+                                               // before we could anyway), wait for ANTI_REORG_DELAY and clean the RBF
+                                               // tracking map.
+                                               if set_equality {
                                                        match self.onchain_events_waiting_threshold_conf.entry(height + ANTI_REORG_DELAY - 1) {
                                                                hash_map::Entry::Occupied(_) => {},
                                                                hash_map::Entry::Vacant(entry) => {
@@ -2416,9 +2424,9 @@ impl ChannelMonitor {
                                                                }
                                                        }
                                                } else { // If false, generate new claim request with update outpoint set
-                                                       for already_claimed in claimed_outpoints.iter() {
-                                                               if let Some(input_material) = claim_material.per_input_material.remove(&already_claimed) {
-                                                                       claimed_input_material.push(input_material);
+                                                       for input in tx.input.iter() {
+                                                               if let Some(input_material) = claim_material.per_input_material.remove(&input.previous_output) {
+                                                                       claimed_outputs_material.push((input.previous_output, input_material));
                                                                }
                                                        }
                                                        //TODO: recompute soonest_timelock to avoid wasting a bit on fees
@@ -2430,11 +2438,11 @@ impl ChannelMonitor {
                                        }
                                }
                        }
-                       for (outpoint, input_material) in claimed_outpoints.iter().zip(claimed_input_material.drain(..)) {
+                       for (outpoint, input_material) in claimed_outputs_material.drain(..) {
                                match self.onchain_events_waiting_threshold_conf.entry(height + ANTI_REORG_DELAY - 1) {
                                        hash_map::Entry::Occupied(_) => {},
                                        hash_map::Entry::Vacant(entry) => {
-                                               entry.insert(vec![OnchainEvent::ContentiousOutpoint { outpoint: *outpoint, input_material: input_material }]);
+                                               entry.insert(vec![OnchainEvent::ContentiousOutpoint { outpoint, input_material }]);
                                        }
                                }
                        }

diff --git a/lightning/src/ln/functional_tests.rs b/lightning/src/ln/functional_tests.rs
index 0ba48d528756c1256279f1962b82794e4252459f..65fdb2192603caa198d16daf80e52b0017d93341 100644 (file)
--- a/lightning/src/ln/functional_tests.rs
+++ b/lightning/src/ln/functional_tests.rs
@@ -6508,19 +6508,25 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
        let header_132 = connect_blocks(&nodes[0].block_notifier, 3, 129, true, header_129.bitcoin_hash());
        let node_txn = {
                let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
-               assert_eq!(node_txn.len(), 3); //2 last tx : bumped claiming txn on Revoked HTLCs Txn, there is no bumped commitment tx as it's empty of claiming outpoints
+               assert_eq!(node_txn.len(), 5); // 2 bumped penalty txn on offered/received HTLC outputs of revoked commitment tx + 1 penalty tx on to_local of revoked commitment tx + 2 bumped penalty tx on revoked HTLC txn
+
+               check_spends!(node_txn[0], revoked_local_txn[0].clone());
+               check_spends!(node_txn[1], revoked_local_txn[0].clone());
 
                let mut penalty_local = ::std::usize::MAX;
                let mut penalty_offered = ::std::usize::MAX;
                let mut penalty_received = ::std::usize::MAX;
 
-               for (i, tx) in node_txn.iter().enumerate() {
-                       if tx.input[0].previous_output.txid == revoked_local_txn[0].txid() {
-                               penalty_local = i;
-                       } else if tx.input[0].previous_output.txid == revoked_htlc_txn[offered].txid() {
-                               penalty_offered = i;
-                       } else if tx.input[0].previous_output.txid == revoked_htlc_txn[received].txid() {
-                               penalty_received = i;
+               {
+                       let iter_txn = node_txn[2..].iter();
+                       for (i, tx) in iter_txn.enumerate() {
+                               if tx.input[0].previous_output.txid == revoked_local_txn[0].txid() {
+                                       penalty_local = 2 + i;
+                               } else if tx.input[0].previous_output.txid == revoked_htlc_txn[offered].txid() {
+                                       penalty_offered = 2+ i;
+                               } else if tx.input[0].previous_output.txid == revoked_htlc_txn[received].txid() {
+                                       penalty_received = 2 + i;
+                               }
                        }
                }
                check_spends!(node_txn[penalty_local], revoked_local_txn[0].clone());
@@ -6541,7 +6547,7 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
                let fee = revoked_htlc_txn[received].output[0].value - node_txn[penalty_received].output[0].value;
                let new_feerate = fee * 1000 / node_txn[penalty_received].get_weight() as u64;
                assert!(new_feerate * 100 > feerate_2 * 125);
-               let txn = vec![node_txn[0].clone(), node_txn[1].clone(), node_txn[2].clone()];
+               let txn = vec![node_txn[2].clone(), node_txn[3].clone(), node_txn[4].clone()];
                node_txn.clear();
                txn
        };