}
res
}
+
+ /// Begin Update fee process. Allowed only on an outbound channel.
+ /// If successful, will generate a UpdateHTLCs event, so you should probably poll
+ /// PeerManager::process_events afterwards.
+ pub fn update_fee(&self, channel_id: [u8;32], feerate_per_kw: u64) -> Result<(), APIError> {
+ let mut channel_state = self.channel_state.lock().unwrap();
+ match channel_state.by_id.get_mut(&channel_id) {
+ None => return Err(APIError::APIMisuseError{err: "Failed to find corresponding channel"}),
+ Some(chan) => {
+ if !chan.is_usable() {
+ return Err(APIError::APIMisuseError{err: "Channel is not in usuable state"});
+ }
+ if !chan.is_outbound() {
+ return Err(APIError::APIMisuseError{err: "update_fee cannot be sent for an inbound channel"});
+ }
+ if let Some((update_fee, commitment_signed, chan_monitor)) = chan.send_update_fee_and_commit(feerate_per_kw).map_err(|e| APIError::APIMisuseError{err: e.err})? {
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!();
+ }
+ let mut pending_events = self.pending_events.lock().unwrap();
+ pending_events.push(events::Event::UpdateHTLCs {
+ node_id: chan.get_their_node_id(),
+ updates: msgs::CommitmentUpdate {
+ update_add_htlcs: Vec::new(),
+ update_fulfill_htlcs: Vec::new(),
+ update_fail_htlcs: Vec::new(),
+ update_fail_malformed_htlcs: Vec::new(),
+ update_fee: Some(update_fee),
+ commitment_signed,
+ },
+ });
+ }
+ },
+ }
+ Ok(())
+ }
}
impl events::EventsProvider for ChannelManager {
nodes
}
+ #[test]
+ fn test_update_fee_vanilla() {
+ let nodes = create_network(2);
+ let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
+ let channel_id = chan.2;
+
+ macro_rules! get_feerate {
+ ($node: expr) => {{
+ let chan_lock = $node.node.channel_state.lock().unwrap();
+ let chan = chan_lock.by_id.get(&channel_id).unwrap();
+ chan.get_feerate()
+ }}
+ }
+
+ let feerate = get_feerate!(nodes[0]);
+ nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
+
+ let events_0 = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events_0.len(), 1);
+ let (update_msg, commitment_signed) = match events_0[0] {
+ Event::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
+ (update_fee.as_ref(), commitment_signed)
+ },
+ _ => panic!("Unexpected event"),
+ };
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap();
+
+ let (revoke_msg, commitment_signed) = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap();
+ let commitment_signed = commitment_signed.unwrap();
+ check_added_monitors!(nodes[0], 1);
+ check_added_monitors!(nodes[1], 1);
+
+ let resp_option = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap();
+ assert!(resp_option.is_none());
+ check_added_monitors!(nodes[0], 1);
+
+ let (revoke_msg, commitment_signed) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed).unwrap();
+ assert!(commitment_signed.is_none());
+ check_added_monitors!(nodes[0], 1);
+
+ let resp_option = nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg).unwrap();
+ assert!(resp_option.is_none());
+ check_added_monitors!(nodes[1], 1);
+ }
+
+ #[test]
+ fn test_update_fee_with_fundee_update_add_htlc() {
+ let mut nodes = create_network(2);
+ let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
+ let channel_id = chan.2;
+
+ macro_rules! get_feerate {
+ ($node: expr) => {{
+ let chan_lock = $node.node.channel_state.lock().unwrap();
+ let chan = chan_lock.by_id.get(&channel_id).unwrap();
+ chan.get_feerate()
+ }}
+ }
+
+ // balancing
+ send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
+
+ let feerate = get_feerate!(nodes[0]);
+ nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
+
+ let events_0 = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events_0.len(), 1);
+ let (update_msg, commitment_signed) = match events_0[0] {
+ Event::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
+ (update_fee.as_ref(), commitment_signed)
+ },
+ _ => panic!("Unexpected event"),
+ };
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ let (revoke_msg, commitment_signed) = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap();
+ let commitment_signed = commitment_signed.unwrap();
+ check_added_monitors!(nodes[1], 1);
+
+ let route = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 800000, TEST_FINAL_CLTV).unwrap();
+
+ let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[1]);
+
+ // nothing happens since node[1] is in AwaitingRemoteRevoke
+ nodes[1].node.send_payment(route, our_payment_hash).unwrap();
+ {
+ let mut added_monitors = nodes[0].chan_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 0);
+ added_monitors.clear();
+ }
+ let events = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 0);
+ // node[1] has nothing to do
+
+ let resp_option = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap();
+ assert!(resp_option.is_none());
+ check_added_monitors!(nodes[0], 1);
+
+ let (revoke_msg, commitment_signed) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed).unwrap();
+ assert!(commitment_signed.is_none());
+ check_added_monitors!(nodes[0], 1);
+ let resp_option = nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg).unwrap();
+ // AwaitingRemoteRevoke ends here
+
+ let commitment_update = resp_option.unwrap();
+ assert_eq!(commitment_update.update_add_htlcs.len(), 1);
+ assert_eq!(commitment_update.update_fulfill_htlcs.len(), 0);
+ assert_eq!(commitment_update.update_fail_htlcs.len(), 0);
+ assert_eq!(commitment_update.update_fail_malformed_htlcs.len(), 0);
+ assert_eq!(commitment_update.update_fee.is_none(), true);
+
+ nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &commitment_update.update_add_htlcs[0]).unwrap();
+ let (revoke, commitment_signed) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_update.commitment_signed).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ check_added_monitors!(nodes[1], 1);
+ let commitment_signed = commitment_signed.unwrap();
+ let resp_option = nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke).unwrap();
+ check_added_monitors!(nodes[1], 1);
+ assert!(resp_option.is_none());
+
+ let (revoke, commitment_signed) = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &commitment_signed).unwrap();
+ check_added_monitors!(nodes[1], 1);
+ assert!(commitment_signed.is_none());
+ let resp_option = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ assert!(resp_option.is_none());
+
+ let events = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ Event::PendingHTLCsForwardable { .. } => { },
+ _ => panic!("Unexpected event"),
+ };
+ nodes[0].node.channel_state.lock().unwrap().next_forward = Instant::now();
+ nodes[0].node.process_pending_htlc_forwards();
+
+ let events = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ Event::PaymentReceived { .. } => { },
+ _ => panic!("Unexpected event"),
+ };
+
+ claim_payment(&nodes[1], &vec!(&nodes[0])[..], our_payment_preimage);
+
+ send_payment(&nodes[1], &vec!(&nodes[0])[..], 800000);
+ send_payment(&nodes[0], &vec!(&nodes[1])[..], 800000);
+ close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
+ }
+
+ #[test]
+ fn test_update_fee() {
+ let nodes = create_network(2);
+ let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
+ let channel_id = chan.2;
+
+ macro_rules! get_feerate {
+ ($node: expr) => {{
+ let chan_lock = $node.node.channel_state.lock().unwrap();
+ let chan = chan_lock.by_id.get(&channel_id).unwrap();
+ chan.get_feerate()
+ }}
+ }
+
+ let feerate = get_feerate!(nodes[0]);
+ nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
+
+ let events_0 = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events_0.len(), 1);
+ let (update_msg, commitment_signed) = match events_0[0] {
+ Event::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
+ (update_fee.as_ref(), commitment_signed)
+ },
+ _ => panic!("Unexpected event"),
+ };
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap();
+
+ let (revoke_msg, commitment_signed) = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap();
+ let commitment_signed_0 = commitment_signed.unwrap();
+ check_added_monitors!(nodes[0], 1);
+ check_added_monitors!(nodes[1], 1);
+
+ let resp_option = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap();
+ assert!(resp_option.is_none());
+ check_added_monitors!(nodes[0], 1);
+
+ nodes[0].node.update_fee(channel_id, feerate+30).unwrap();
+ let events_0 = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events_0.len(), 1);
+ let (update_msg, commitment_signed) = match events_0[0] {
+ Event::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
+ (update_fee.as_ref(), commitment_signed)
+ },
+ _ => panic!("Unexpected event"),
+ };
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap();
+
+ let (revoke_msg, commitment_signed) = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap();
+ assert!(commitment_signed.is_none());
+ check_added_monitors!(nodes[0], 1);
+ check_added_monitors!(nodes[1], 1);
+ let (revoke_msg_0, commitment_signed) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed_0).unwrap();
+ assert!(commitment_signed.is_none());
+ check_added_monitors!(nodes[0], 1);
+
+ let resp_option = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap();
+ assert!(resp_option.is_none());
+ check_added_monitors!(nodes[0], 1);
+
+ let resp_option = nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg_0).unwrap();
+ let commitment_signed = resp_option.unwrap().commitment_signed;
+ check_added_monitors!(nodes[1], 1);
+
+ let (revoke_msg, commitment_signed) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed).unwrap();
+ assert!(commitment_signed.is_none());
+ check_added_monitors!(nodes[0], 1);
+ let resp_option = nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg).unwrap();
+ assert!(resp_option.is_none());
+ check_added_monitors!(nodes[1], 1);
+
+ assert_eq!(get_feerate!(nodes[0]), feerate + 30);
+ assert_eq!(get_feerate!(nodes[1]), feerate + 30);
+ close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
+ }
+
#[test]
fn fake_network_test() {
// Simple test which builds a network of ChannelManagers, connects them to each other, and
projects / rust-lightning / blobdiff