use chain::transaction::OutPoint;
use chain::keysinterface::BaseSign;
use ln::{PaymentPreimage, PaymentSecret, PaymentHash};
-use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC, CONCURRENT_INBOUND_HTLC_FEE_BUFFER, MIN_AFFORDABLE_HTLC_COUNT};
+use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC, CONCURRENT_INBOUND_HTLC_FEE_BUFFER, FEE_SPIKE_BUFFER_FEE_INCREASE_MULTIPLE, MIN_AFFORDABLE_HTLC_COUNT};
use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, PaymentId, RAACommitmentOrder, PaymentSendFailure, BREAKDOWN_TIMEOUT, MIN_CLTV_EXPIRY_DELTA};
use ln::channel::{Channel, ChannelError};
use ln::{chan_utils, onion_utils};
use bitcoin::blockdata::constants::genesis_block;
use bitcoin::network::constants::Network;
-use bitcoin::hashes::sha256::Hash as Sha256;
-use bitcoin::hashes::Hash;
-
use bitcoin::secp256k1::Secp256k1;
use bitcoin::secp256k1::key::{PublicKey,SecretKey};
insane_open_helper("Peer never wants payout outputs?", |mut msg| { msg.dust_limit_satoshis = msg.funding_satoshis + 1 ; msg });
- insane_open_helper(r"Bogus; channel reserve \(\d+\) is less than dust limit \(\d+\)", |mut msg| { msg.dust_limit_satoshis = msg.channel_reserve_satoshis + 1; msg });
-
insane_open_helper(r"Minimum htlc value \(\d+\) was larger than full channel value \(\d+\)", |mut msg| { msg.htlc_minimum_msat = (msg.funding_satoshis - msg.channel_reserve_satoshis) * 1000; msg });
insane_open_helper("They wanted our payments to be delayed by a needlessly long period", |mut msg| { msg.to_self_delay = MAX_LOCAL_BREAKDOWN_TIMEOUT + 1; msg });
insane_open_helper("max_accepted_htlcs was 484. It must not be larger than 483", |mut msg| { msg.max_accepted_htlcs = 484; msg });
}
+fn do_test_counterparty_no_reserve(send_from_initiator: bool) {
+ // A peer providing a channel_reserve_satoshis of 0 (or less than our dust limit) is insecure,
+ // but only for them. Because some LSPs do it with some level of trust of the clients (for a
+ // substantial UX improvement), we explicitly allow it. Because it's unlikely to happen often
+ // in normal testing, we test it explicitly here.
+ 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);
+
+ // Have node0 initiate a channel to node1 with aforementioned parameters
+ let mut push_amt = 100_000_000;
+ let feerate_per_kw = 253;
+ push_amt -= feerate_per_kw as u64 * (COMMITMENT_TX_BASE_WEIGHT + 4 * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000 * 1000;
+ push_amt -= Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(100_000) * 1000;
+
+ let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, if send_from_initiator { 0 } else { push_amt }, 42, None).unwrap();
+ let mut open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
+ if !send_from_initiator {
+ open_channel_message.channel_reserve_satoshis = 0;
+ open_channel_message.max_htlc_value_in_flight_msat = 100_000_000;
+ }
+ nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &open_channel_message);
+
+ // Extract the channel accept message from node1 to node0
+ let mut accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
+ if send_from_initiator {
+ accept_channel_message.channel_reserve_satoshis = 0;
+ accept_channel_message.max_htlc_value_in_flight_msat = 100_000_000;
+ }
+ nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), InitFeatures::known(), &accept_channel_message);
+ {
+ let mut lock;
+ let mut chan = get_channel_ref!(if send_from_initiator { &nodes[1] } else { &nodes[0] }, lock, temp_channel_id);
+ chan.holder_selected_channel_reserve_satoshis = 0;
+ chan.holder_max_htlc_value_in_flight_msat = 100_000_000;
+ }
+
+ let funding_tx = sign_funding_transaction(&nodes[0], &nodes[1], 100_000, temp_channel_id);
+ let funding_msgs = create_chan_between_nodes_with_value_confirm(&nodes[0], &nodes[1], &funding_tx);
+ create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &funding_msgs.0);
+
+ // nodes[0] should now be able to send the full balance to nodes[1], violating nodes[1]'s
+ // security model if it ever tries to send funds back to nodes[0] (but that's not our problem).
+ if send_from_initiator {
+ send_payment(&nodes[0], &[&nodes[1]], 100_000_000
+ // Note that for outbound channels we have to consider the commitment tx fee and the
+ // "fee spike buffer", which is currently a multiple of the total commitment tx fee as
+ // well as an additional HTLC.
+ - FEE_SPIKE_BUFFER_FEE_INCREASE_MULTIPLE * commit_tx_fee_msat(feerate_per_kw, 2));
+ } else {
+ send_payment(&nodes[1], &[&nodes[0]], push_amt);
+ }
+}
+
+#[test]
+fn test_counterparty_no_reserve() {
+ do_test_counterparty_no_reserve(true);
+ do_test_counterparty_no_reserve(false);
+}
+
#[test]
fn test_async_inbound_update_fee() {
let chanmon_cfgs = create_chanmon_cfgs(2);
nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
open_channel.to_self_delay = 200;
- if let Err(error) = Channel::new_from_req(&&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &InitFeatures::known(), &open_channel, 0, &low_our_to_self_config, 0) {
+ if let Err(error) = Channel::new_from_req(&&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &InitFeatures::known(), &open_channel, 0, &low_our_to_self_config, 0, &nodes[0].logger) {
match error {
ChannelError::Close(err) => { assert!(regex::Regex::new(r"Configured with an unreasonable our_to_self_delay \(\d+\) putting user funds at risks").unwrap().is_match(err.as_str())); },
_ => panic!("Unexpected event"),
nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
open_channel.to_self_delay = 200;
- if let Err(error) = Channel::new_from_req(&&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &InitFeatures::known(), &open_channel, 0, &high_their_to_self_config, 0) {
+ if let Err(error) = Channel::new_from_req(&&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &InitFeatures::known(), &open_channel, 0, &high_their_to_self_config, 0, &nodes[0].logger) {
match error {
ChannelError::Close(err) => { assert!(regex::Regex::new(r"They wanted our payments to be delayed by a needlessly long period\. Upper limit: \d+\. Actual: \d+").unwrap().is_match(err.as_str())); },
_ => panic!("Unexpected event"),
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- let short_id_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
- let short_id_2 = create_announced_chan_between_nodes(&nodes, 1, 0, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
- let short_id_3 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
+ create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+ create_announced_chan_between_nodes(&nodes, 1, 0, InitFeatures::known(), InitFeatures::known());
+ create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
// Disconnect peers
nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
nodes[0].node.timer_tick_occurred(); // DisabledStaged -> Disabled
let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(msg_events.len(), 3);
- let mut chans_disabled: HashSet<u64> = [short_id_1, short_id_2, short_id_3].iter().map(|a| *a).collect();
+ let mut chans_disabled = HashMap::new();
for e in msg_events {
match e {
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
assert_eq!(msg.contents.flags & (1<<1), 1<<1); // The "channel disabled" bit should be set
// Check that each channel gets updated exactly once
- if !chans_disabled.remove(&msg.contents.short_channel_id) {
+ if chans_disabled.insert(msg.contents.short_channel_id, msg.contents.timestamp).is_some() {
panic!("Generated ChannelUpdate for wrong chan!");
}
},
nodes[0].node.timer_tick_occurred();
let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(msg_events.len(), 3);
- chans_disabled = [short_id_1, short_id_2, short_id_3].iter().map(|a| *a).collect();
for e in msg_events {
match e {
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
assert_eq!(msg.contents.flags & (1<<1), 0); // The "channel disabled" bit should be off
- // Check that each channel gets updated exactly once
- if !chans_disabled.remove(&msg.contents.short_channel_id) {
- panic!("Generated ChannelUpdate for wrong chan!");
+ match chans_disabled.remove(&msg.contents.short_channel_id) {
+ // Each update should have a higher timestamp than the previous one, replacing
+ // the old one.
+ Some(prev_timestamp) => assert!(msg.contents.timestamp > prev_timestamp),
+ None => panic!("Generated ChannelUpdate for wrong chan!"),
}
},
_ => panic!("Unexpected event"),
}
}
+ // Check that each channel gets updated exactly once
+ assert!(chans_disabled.is_empty());
}
#[test]
projects / rust-lightning / blobdiff