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joostjagerjoostjager
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Allow config defaults override for inbound channels
This commit introduces a config override struct parameter to the accept_inbound_channel methods. With manual channel acceptance enabled, users can modify the default configuration as needed.
1 parent b05402a commit c088dcd

8 files changed

+308
-54
lines changed

‎fuzz/src/chanmon_consistency.rs

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -64,6 +64,7 @@ use lightning::routing::router::{
6464
};
6565
use lightning::sign::{EntropySource, InMemorySigner, NodeSigner, Recipient, SignerProvider};
6666
use lightning::types::payment::{PaymentHash, PaymentPreimage, PaymentSecret};
67+
use lightning::util::config::InboundChannelConfigOverrides;
6768
use lightning::util::config::UserConfig;
6869
use lightning::util::hash_tables::*;
6970
use lightning::util::logger::Logger;
@@ -809,6 +810,7 @@ pub fn do_test<Out: Output>(data: &[u8], underlying_out: Out, anchors: bool) {
809810
temporary_channel_id,
810811
counterparty_node_id,
811812
user_channel_id,
813+
None,
812814
)
813815
.unwrap();
814816
} else {

‎lightning/src/ln/async_signer_tests.rs

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -11,6 +11,7 @@
1111
//! properly with a signer implementation that asynchronously derives signatures.
1212
1313
use crate::prelude::*;
14+
use crate::util::config::InboundChannelConfigOverrides;
1415
use bitcoin::secp256k1::Secp256k1;
1516
use bitcoin::{Transaction, TxOut, TxIn, Amount};
1617
use bitcoin::locktime::absolute::LockTime;
@@ -74,7 +75,7 @@ fn do_test_open_channel(zero_conf: bool) {
7475
match &events[0] {
7576
Event::OpenChannelRequest { temporary_channel_id, .. } => {
7677
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(
77-
temporary_channel_id, &nodes[0].node.get_our_node_id(), 0)
78+
temporary_channel_id, &nodes[0].node.get_our_node_id(), 0, None)
7879
.expect("Unable to accept inbound zero-conf channel");
7980
},
8081
ev => panic!("Expected OpenChannelRequest, not {:?}", ev)
@@ -319,7 +320,7 @@ fn do_test_funding_signed_0conf(signer_ops: Vec<SignerOp>) {
319320
match &events[0] {
320321
Event::OpenChannelRequest { temporary_channel_id, .. } => {
321322
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(
322-
temporary_channel_id, &nodes[0].node.get_our_node_id(), 0)
323+
temporary_channel_id, &nodes[0].node.get_our_node_id(), 0, None)
323324
.expect("Unable to accept inbound zero-conf channel");
324325
},
325326
ev => panic!("Expected OpenChannelRequest, not {:?}", ev)

‎lightning/src/ln/chanmon_update_fail_tests.rs

Lines changed: 5 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -23,6 +23,7 @@ use crate::ln::channel::AnnouncementSigsState;
2323
use crate::ln::msgs;
2424
use crate::ln::types::ChannelId;
2525
use crate::ln::msgs::{ChannelMessageHandler, RoutingMessageHandler};
26+
use crate::util::config::InboundChannelConfigOverrides;
2627
use crate::util::test_channel_signer::TestChannelSigner;
2728
use crate::util::ser::{ReadableArgs, Writeable};
2829
use crate::util::test_utils::TestBroadcaster;
@@ -2775,9 +2776,9 @@ fn do_test_outbound_reload_without_init_mon(use_0conf: bool) {
27752776
match events[0] {
27762777
Event::OpenChannelRequest { temporary_channel_id, .. } => {
27772778
if use_0conf {
2778-
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0).unwrap();
2779+
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0, None).unwrap();
27792780
} else {
2780-
nodes[1].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0).unwrap();
2781+
nodes[1].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0, None).unwrap();
27812782
}
27822783
},
27832784
_ => panic!("Unexpected event"),
@@ -2866,9 +2867,9 @@ fn do_test_inbound_reload_without_init_mon(use_0conf: bool, lock_commitment: boo
28662867
match events[0] {
28672868
Event::OpenChannelRequest { temporary_channel_id, .. } => {
28682869
if use_0conf {
2869-
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0).unwrap();
2870+
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0, None).unwrap();
28702871
} else {
2871-
nodes[1].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0).unwrap();
2872+
nodes[1].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0, None).unwrap();
28722873
}
28732874
},
28742875
_ => panic!("Unexpected event"),

‎lightning/src/ln/channelmanager.rs

Lines changed: 56 additions & 19 deletions
Original file line numberDiff line numberDiff line change
@@ -80,7 +80,7 @@ use crate::onion_message::messenger::{Destination, MessageRouter, Responder, Res
8080
use crate::onion_message::offers::{OffersMessage, OffersMessageHandler};
8181
use crate::sign::{EntropySource, NodeSigner, Recipient, SignerProvider};
8282
use crate::sign::ecdsa::EcdsaChannelSigner;
83-
use crate::util::config::{UserConfig, ChannelConfig, ChannelConfigUpdate};
83+
use crate::util::config::{ChannelConfig, ChannelConfigUpdate, InboundChannelConfigOverrides, UserConfig};
8484
use crate::util::wakers::{Future, Notifier};
8585
use crate::util::scid_utils::fake_scid;
8686
use crate::util::string::UntrustedString;
@@ -1875,6 +1875,7 @@ where
18751875
/// ```
18761876
/// # use bitcoin::secp256k1::PublicKey;
18771877
/// # use lightning::ln::channelmanager::AChannelManager;
1878+
/// # use lightning::util::config::InboundChannelConfigOverrides;
18781879
/// # use lightning::events::{Event, EventsProvider};
18791880
/// #
18801881
/// # fn is_trusted(counterparty_node_id: PublicKey) -> bool {
@@ -1900,7 +1901,7 @@ where
19001901
///
19011902
/// let user_channel_id = 43;
19021903
/// match channel_manager.accept_inbound_channel(
1903-
/// &temporary_channel_id, &counterparty_node_id, user_channel_id
1904+
/// &temporary_channel_id, &counterparty_node_id, user_channel_id, None
19041905
/// ) {
19051906
/// Ok(()) => println!("Accepting channel {}", temporary_channel_id),
19061907
/// Err(e) => println!("Error accepting channel {}: {:?}", temporary_channel_id, e),
@@ -7722,8 +7723,8 @@ This indicates a bug inside LDK. Please report this error at https://github.com/
77227723
///
77237724
/// [`Event::OpenChannelRequest`]: events::Event::OpenChannelRequest
77247725
/// [`Event::ChannelClosed::user_channel_id`]: events::Event::ChannelClosed::user_channel_id
7725-
pub fn accept_inbound_channel(&self, temporary_channel_id: &ChannelId, counterparty_node_id: &PublicKey, user_channel_id: u128) -> Result<(), APIError> {
7726-
self.do_accept_inbound_channel(temporary_channel_id, counterparty_node_id, false, user_channel_id)
7726+
pub fn accept_inbound_channel(&self, temporary_channel_id: &ChannelId, counterparty_node_id: &PublicKey, user_channel_id: u128, config_overrides: Option<InboundChannelConfigOverrides>) -> Result<(), APIError> {
7727+
self.do_accept_inbound_channel(temporary_channel_id, counterparty_node_id, false, user_channel_id, config_overrides)
77277728
}
77287729

77297730
/// Accepts a request to open a channel after a [`events::Event::OpenChannelRequest`], treating
@@ -7744,15 +7745,24 @@ This indicates a bug inside LDK. Please report this error at https://github.com/
77447745
///
77457746
/// [`Event::OpenChannelRequest`]: events::Event::OpenChannelRequest
77467747
/// [`Event::ChannelClosed::user_channel_id`]: events::Event::ChannelClosed::user_channel_id
7747-
pub fn accept_inbound_channel_from_trusted_peer_0conf(&self, temporary_channel_id: &ChannelId, counterparty_node_id: &PublicKey, user_channel_id: u128) -> Result<(), APIError> {
7748-
self.do_accept_inbound_channel(temporary_channel_id, counterparty_node_id, true, user_channel_id)
7748+
pub fn accept_inbound_channel_from_trusted_peer_0conf(&self, temporary_channel_id: &ChannelId, counterparty_node_id: &PublicKey, user_channel_id: u128, config_overrides: Option<InboundChannelConfigOverrides>) -> Result<(), APIError> {
7749+
self.do_accept_inbound_channel(temporary_channel_id, counterparty_node_id, true, user_channel_id, config_overrides)
77497750
}
77507751

77517752
/// TODO(dual_funding): Allow contributions, pass intended amount and inputs
77527753
fn do_accept_inbound_channel(
77537754
&self, temporary_channel_id: &ChannelId, counterparty_node_id: &PublicKey, accept_0conf: bool,
7754-
user_channel_id: u128,
7755+
user_channel_id: u128, config_overrides: Option<InboundChannelConfigOverrides>
77557756
) -> Result<(), APIError> {
7757+
7758+
// Apply configuration overrides.
7759+
let config: UserConfig = match config_overrides {
7760+
Some(overrides) => {
7761+
overrides.apply(&self.default_configuration)
7762+
},
7763+
None => self.default_configuration
7764+
};
7765+
77567766
let logger = WithContext::from(&self.logger, Some(*counterparty_node_id), Some(*temporary_channel_id), None);
77577767
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
77587768

@@ -7782,7 +7792,7 @@ This indicates a bug inside LDK. Please report this error at https://github.com/
77827792
InboundV1Channel::new(
77837793
&self.fee_estimator, &self.entropy_source, &self.signer_provider, *counterparty_node_id,
77847794
&self.channel_type_features(), &peer_state.latest_features, &open_channel_msg,
7785-
user_channel_id, &self.default_configuration, best_block_height, &self.logger, accept_0conf
7795+
user_channel_id, &config, best_block_height, &self.logger, accept_0conf
77867796
).map_err(|err| MsgHandleErrInternal::from_chan_no_close(err, *temporary_channel_id)
77877797
).map(|mut channel| {
77887798
let logger = WithChannelContext::from(&self.logger, &channel.context, None);
@@ -7802,7 +7812,7 @@ This indicates a bug inside LDK. Please report this error at https://github.com/
78027812
self.get_our_node_id(), *counterparty_node_id,
78037813
&self.channel_type_features(), &peer_state.latest_features,
78047814
&open_channel_msg,
7805-
user_channel_id, &self.default_configuration, best_block_height,
7815+
user_channel_id, &config, best_block_height,
78067816
&self.logger,
78077817
).map_err(|_| MsgHandleErrInternal::from_chan_no_close(
78087818
ChannelError::Close(
@@ -14540,17 +14550,17 @@ mod tests {
1454014550
use crate::events::{Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, ClosureReason};
1454114551
use crate::ln::types::ChannelId;
1454214552
use crate::types::payment::{PaymentPreimage, PaymentHash, PaymentSecret};
14543-
use crate::ln::channelmanager::{create_recv_pending_htlc_info, HTLCForwardInfo, inbound_payment, PaymentId, RecipientOnionFields, InterceptId};
14553+
use crate::ln::channelmanager::{create_recv_pending_htlc_info, inbound_payment, InboundChannelConfigOverrides, HTLCForwardInfo, InterceptId, PaymentId, RecipientOnionFields};
1454414554
use crate::ln::functional_test_utils::*;
14545-
use crate::ln::msgs::{self, ErrorAction};
14555+
use crate::ln::msgs::{self, AcceptChannel, ErrorAction};
1454614556
use crate::ln::msgs::ChannelMessageHandler;
1454714557
use crate::ln::outbound_payment::Retry;
1454814558
use crate::prelude::*;
1454914559
use crate::routing::router::{PaymentParameters, RouteParameters, find_route};
1455014560
use crate::util::errors::APIError;
1455114561
use crate::util::ser::Writeable;
1455214562
use crate::util::test_utils;
14553-
use crate::util::config::{ChannelConfig, ChannelConfigUpdate};
14563+
use crate::util::config::{ChannelConfig, ChannelConfigUpdate, InboundChannelHandshakeConfigOverrides};
1455414564
use crate::sign::EntropySource;
1455514565

1455614566
#[test]
@@ -15299,7 +15309,7 @@ mod tests {
1529915309
// Test the API functions.
1530015310
check_not_connected_to_peer_error(nodes[0].node.create_channel(unkown_public_key, 1_000_000, 500_000_000, 42, None, None), unkown_public_key);
1530115311

15302-
check_unkown_peer_error(nodes[0].node.accept_inbound_channel(&channel_id, &unkown_public_key, 42), unkown_public_key);
15312+
check_unkown_peer_error(nodes[0].node.accept_inbound_channel(&channel_id, &unkown_public_key, 42, None), unkown_public_key);
1530315313

1530415314
check_unkown_peer_error(nodes[0].node.close_channel(&channel_id, &unkown_public_key), unkown_public_key);
1530515315

@@ -15330,7 +15340,7 @@ mod tests {
1533015340
let error_message = "Channel force-closed";
1533115341

1533215342
// Test the API functions.
15333-
check_api_misuse_error(nodes[0].node.accept_inbound_channel(&channel_id, &counterparty_node_id, 42));
15343+
check_api_misuse_error(nodes[0].node.accept_inbound_channel(&channel_id, &counterparty_node_id, 42, None));
1533415344

1533515345
check_channel_unavailable_error(nodes[0].node.close_channel(&channel_id, &counterparty_node_id), channel_id, counterparty_node_id);
1533615346

@@ -15521,7 +15531,7 @@ mod tests {
1552115531
let events = nodes[1].node.get_and_clear_pending_events();
1552215532
match events[0] {
1552315533
Event::OpenChannelRequest { temporary_channel_id, .. } => {
15524-
nodes[1].node.accept_inbound_channel(&temporary_channel_id, &random_pk, 23).unwrap();
15534+
nodes[1].node.accept_inbound_channel(&temporary_channel_id, &random_pk, 23, None).unwrap();
1552515535
}
1552615536
_ => panic!("Unexpected event"),
1552715537
}
@@ -15539,7 +15549,7 @@ mod tests {
1553915549
let events = nodes[1].node.get_and_clear_pending_events();
1554015550
match events[0] {
1554115551
Event::OpenChannelRequest { temporary_channel_id, .. } => {
15542-
match nodes[1].node.accept_inbound_channel(&temporary_channel_id, &last_random_pk, 23) {
15552+
match nodes[1].node.accept_inbound_channel(&temporary_channel_id, &last_random_pk, 23, None) {
1554315553
Err(APIError::APIMisuseError { err }) =>
1554415554
assert_eq!(err, "Too many peers with unfunded channels, refusing to accept new ones"),
1554515555
_ => panic!(),
@@ -15555,7 +15565,7 @@ mod tests {
1555515565
let events = nodes[1].node.get_and_clear_pending_events();
1555615566
match events[0] {
1555715567
Event::OpenChannelRequest { temporary_channel_id, .. } => {
15558-
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &last_random_pk, 23).unwrap();
15568+
nodes[1].node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &last_random_pk, 23, None).unwrap();
1555915569
}
1556015570
_ => panic!("Unexpected event"),
1556115571
}
@@ -15635,6 +15645,33 @@ mod tests {
1563515645

1563615646
#[test]
1563715647
fn test_inbound_anchors_manual_acceptance() {
15648+
test_inbound_anchors_manual_acceptance_with_override(None);
15649+
}
15650+
15651+
#[test]
15652+
fn test_inbound_anchors_manual_acceptance_overridden() {
15653+
let overrides = InboundChannelConfigOverrides {
15654+
handshake_overrides: Some(InboundChannelHandshakeConfigOverrides {
15655+
max_inbound_htlc_value_in_flight_percent_of_channel: Some(5),
15656+
htlc_minimum_msat: Some(1000),
15657+
minimum_depth: Some(2),
15658+
to_self_delay: Some(200),
15659+
max_accepted_htlcs: Some(5),
15660+
channel_reserve_proportional_millionths: Some(20000),
15661+
}),
15662+
update_overrides: None,
15663+
};
15664+
15665+
let accept_message = test_inbound_anchors_manual_acceptance_with_override(Some(overrides));
15666+
assert_eq!(accept_message.common_fields.max_htlc_value_in_flight_msat, 5_000_000);
15667+
assert_eq!(accept_message.common_fields.htlc_minimum_msat, 1_000);
15668+
assert_eq!(accept_message.common_fields.minimum_depth, 2);
15669+
assert_eq!(accept_message.common_fields.to_self_delay, 200);
15670+
assert_eq!(accept_message.common_fields.max_accepted_htlcs, 5);
15671+
assert_eq!(accept_message.channel_reserve_satoshis, 2_000);
15672+
}
15673+
15674+
fn test_inbound_anchors_manual_acceptance_with_override(config_overrides: Option<InboundChannelConfigOverrides>) -> AcceptChannel {
1563815675
// Tests that we properly limit inbound channels when we have the manual-channel-acceptance
1563915676
// flag set and (sometimes) accept channels as 0conf.
1564015677
let mut anchors_cfg = test_default_channel_config();
@@ -15671,10 +15708,10 @@ mod tests {
1567115708
let events = nodes[2].node.get_and_clear_pending_events();
1567215709
match events[0] {
1567315710
Event::OpenChannelRequest { temporary_channel_id, .. } =>
15674-
nodes[2].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 23).unwrap(),
15711+
nodes[2].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 23, config_overrides).unwrap(),
1567515712
_ => panic!("Unexpected event"),
1567615713
}
15677-
get_event_msg!(nodes[2], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
15714+
get_event_msg!(nodes[2], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id())
1567815715
}
1567915716

1568015717
#[test]

‎lightning/src/ln/functional_test_utils.rs

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -27,7 +27,7 @@ use crate::onion_message::messenger::OnionMessenger;
2727
use crate::routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate};
2828
use crate::routing::router::{self, PaymentParameters, Route, RouteParameters};
2929
use crate::sign::{EntropySource, RandomBytes};
30-
use crate::util::config::{UserConfig, MaxDustHTLCExposure};
30+
use crate::util::config::{InboundChannelConfigOverrides, MaxDustHTLCExposure, UserConfig};
3131
#[cfg(test)]
3232
use crate::util::logger::Logger;
3333
use crate::util::scid_utils;
@@ -1321,7 +1321,7 @@ pub fn open_zero_conf_channel<'a, 'b, 'c, 'd>(initiator: &'a Node<'b, 'c, 'd>, r
13211321
assert_eq!(events.len(), 1);
13221322
match events[0] {
13231323
Event::OpenChannelRequest { temporary_channel_id, .. } => {
1324-
receiver.node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &initiator.node.get_our_node_id(), 0).unwrap();
1324+
receiver.node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &initiator.node.get_our_node_id(), 0, None).unwrap();
13251325
},
13261326
_ => panic!("Unexpected event"),
13271327
};
@@ -1389,7 +1389,7 @@ pub fn exchange_open_accept_chan<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b:
13891389
assert_eq!(events.len(), 1);
13901390
match &events[0] {
13911391
Event::OpenChannelRequest { temporary_channel_id, counterparty_node_id, .. } =>
1392-
node_b.node.accept_inbound_channel(temporary_channel_id, counterparty_node_id, 42).unwrap(),
1392+
node_b.node.accept_inbound_channel(temporary_channel_id, counterparty_node_id, 42, None).unwrap(),
13931393
_ => panic!("Unexpected event"),
13941394
};
13951395
}

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