use util::ser::{Readable, ReadableArgs, Writeable, Writer, VecWriter};
use util::logger::Logger;
use util::errors::APIError;
- use util::config::{UserConfig,ChannelConfig};
+ use util::config::{UserConfig, ChannelConfig, ChannelHandshakeLimits};
use util::scid_utils::scid_from_parts;
use io;
#[cfg(not(any(test, feature = "_test_utils")))]
config: ChannelConfig,
+ inbound_handshake_limits_override: Option<ChannelHandshakeLimits>,
+
user_id: u64,
channel_id: [u8; 32],
Ok(Channel {
user_id,
config: config.channel_options.clone(),
+ inbound_handshake_limits_override: Some(config.peer_channel_config_limits.clone()),
channel_id: keys_provider.get_secure_random_bytes(),
channel_state: ChannelState::OurInitSent as u32,
let chan = Channel {
user_id,
config: local_config,
+ inbound_handshake_limits_override: None,
channel_id: msg.temporary_channel_id,
channel_state: (ChannelState::OurInitSent as u32) | (ChannelState::TheirInitSent as u32),
// Message handlers:
- pub fn accept_channel(&mut self, msg: &msgs::AcceptChannel, config: &UserConfig, their_features: &InitFeatures) -> Result<(), ChannelError> {
+ pub fn accept_channel(&mut self, msg: &msgs::AcceptChannel, default_limits: &ChannelHandshakeLimits, their_features: &InitFeatures) -> Result<(), ChannelError> {
+ let peer_limits = if let Some(ref limits) = self.inbound_handshake_limits_override { limits } else { default_limits };
+
// Check sanity of message fields:
if !self.is_outbound() {
return Err(ChannelError::Close("Got an accept_channel message from an inbound peer".to_owned()));
if msg.htlc_minimum_msat >= full_channel_value_msat {
return Err(ChannelError::Close(format!("Minimum htlc value ({}) is full channel value ({})", msg.htlc_minimum_msat, full_channel_value_msat)));
}
- let max_delay_acceptable = u16::min(config.peer_channel_config_limits.their_to_self_delay, MAX_LOCAL_BREAKDOWN_TIMEOUT);
+ let max_delay_acceptable = u16::min(peer_limits.their_to_self_delay, MAX_LOCAL_BREAKDOWN_TIMEOUT);
if msg.to_self_delay > max_delay_acceptable {
return Err(ChannelError::Close(format!("They wanted our payments to be delayed by a needlessly long period. Upper limit: {}. Actual: {}", max_delay_acceptable, msg.to_self_delay)));
}
}
// Now check against optional parameters as set by config...
- if msg.htlc_minimum_msat > config.peer_channel_config_limits.max_htlc_minimum_msat {
- return Err(ChannelError::Close(format!("htlc_minimum_msat ({}) is higher than the user specified limit ({})", msg.htlc_minimum_msat, config.peer_channel_config_limits.max_htlc_minimum_msat)));
+ if msg.htlc_minimum_msat > peer_limits.max_htlc_minimum_msat {
+ return Err(ChannelError::Close(format!("htlc_minimum_msat ({}) is higher than the user specified limit ({})", msg.htlc_minimum_msat, peer_limits.max_htlc_minimum_msat)));
}
- if msg.max_htlc_value_in_flight_msat < config.peer_channel_config_limits.min_max_htlc_value_in_flight_msat {
- return Err(ChannelError::Close(format!("max_htlc_value_in_flight_msat ({}) is less than the user specified limit ({})", msg.max_htlc_value_in_flight_msat, config.peer_channel_config_limits.min_max_htlc_value_in_flight_msat)));
+ if msg.max_htlc_value_in_flight_msat < peer_limits.min_max_htlc_value_in_flight_msat {
+ return Err(ChannelError::Close(format!("max_htlc_value_in_flight_msat ({}) is less than the user specified limit ({})", msg.max_htlc_value_in_flight_msat, peer_limits.min_max_htlc_value_in_flight_msat)));
}
- if msg.channel_reserve_satoshis > config.peer_channel_config_limits.max_channel_reserve_satoshis {
- return Err(ChannelError::Close(format!("channel_reserve_satoshis ({}) is higher than the user specified limit ({})", msg.channel_reserve_satoshis, config.peer_channel_config_limits.max_channel_reserve_satoshis)));
+ if msg.channel_reserve_satoshis > peer_limits.max_channel_reserve_satoshis {
+ return Err(ChannelError::Close(format!("channel_reserve_satoshis ({}) is higher than the user specified limit ({})", msg.channel_reserve_satoshis, peer_limits.max_channel_reserve_satoshis)));
}
- if msg.max_accepted_htlcs < config.peer_channel_config_limits.min_max_accepted_htlcs {
- return Err(ChannelError::Close(format!("max_accepted_htlcs ({}) is less than the user specified limit ({})", msg.max_accepted_htlcs, config.peer_channel_config_limits.min_max_accepted_htlcs)));
+ if msg.max_accepted_htlcs < peer_limits.min_max_accepted_htlcs {
+ return Err(ChannelError::Close(format!("max_accepted_htlcs ({}) is less than the user specified limit ({})", msg.max_accepted_htlcs, peer_limits.min_max_accepted_htlcs)));
}
if msg.dust_limit_satoshis < MIN_CHAN_DUST_LIMIT_SATOSHIS {
return Err(ChannelError::Close(format!("dust_limit_satoshis ({}) is less than the implementation limit ({})", msg.dust_limit_satoshis, MIN_CHAN_DUST_LIMIT_SATOSHIS)));
if msg.dust_limit_satoshis > MAX_CHAN_DUST_LIMIT_SATOSHIS {
return Err(ChannelError::Close(format!("dust_limit_satoshis ({}) is greater than the implementation limit ({})", msg.dust_limit_satoshis, MAX_CHAN_DUST_LIMIT_SATOSHIS)));
}
- if msg.minimum_depth > config.peer_channel_config_limits.max_minimum_depth {
- return Err(ChannelError::Close(format!("We consider the minimum depth to be unreasonably large. Expected minimum: ({}). Actual: ({})", config.peer_channel_config_limits.max_minimum_depth, msg.minimum_depth)));
+ if msg.minimum_depth > peer_limits.max_minimum_depth {
+ return Err(ChannelError::Close(format!("We consider the minimum depth to be unreasonably large. Expected minimum: ({}). Actual: ({})", peer_limits.max_minimum_depth, msg.minimum_depth)));
}
if msg.minimum_depth == 0 {
// Note that if this changes we should update the serialization minimum version to
self.counterparty_shutdown_scriptpubkey = counterparty_shutdown_scriptpubkey;
self.channel_state = ChannelState::OurInitSent as u32 | ChannelState::TheirInitSent as u32;
+ self.inbound_handshake_limits_override = None; // We're done enforcing limits on our peer's handshake now.
Ok(())
}
/// This is the amount that would go to us if we close the channel, ignoring any on-chain fees.
/// See also [`Channel::get_inbound_outbound_available_balance_msat`]
pub fn get_balance_msat(&self) -> u64 {
- self.value_to_self_msat
- - self.get_outbound_pending_htlc_stats(None).pending_htlcs_value_msat
+ // Include our local balance, plus any inbound HTLCs we know the preimage for, minus any
+ // HTLCs sent or which will be sent after commitment signed's are exchanged.
+ let mut balance_msat = self.value_to_self_msat;
+ for ref htlc in self.pending_inbound_htlcs.iter() {
+ if let InboundHTLCState::LocalRemoved(InboundHTLCRemovalReason::Fulfill(_)) = htlc.state {
+ balance_msat += htlc.amount_msat;
+ }
+ }
+ balance_msat - self.get_outbound_pending_htlc_stats(None).pending_htlcs_value_msat
}
pub fn get_holder_counterparty_selected_channel_reserve_satoshis(&self) -> (u64, Option<u64>) {
/// Will only fail if we're not in a state where channel_announcement may be sent (including
/// closing).
///
- /// Note that the "channel must be funded" requirement is stricter than BOLT 7 requires - see
- /// https://github.com/lightningnetwork/lightning-rfc/issues/468
- ///
/// This will only return ChannelError::Ignore upon failure.
fn get_channel_announcement(&self, node_id: PublicKey, chain_hash: BlockHash) -> Result<msgs::UnsignedChannelAnnouncement, ChannelError> {
if !self.config.announced_channel {
user_id,
config: config.unwrap(),
+
+ // Note that we don't care about serializing handshake limits as we only ever serialize
+ // channel data after the handshake has completed.
+ inbound_handshake_limits_override: None,
+
channel_id,
channel_state,
announcement_sigs_state: announcement_sigs_state.unwrap(),
// Node B --> Node A: accept channel, explicitly setting B's dust limit.
let mut accept_channel_msg = node_b_chan.get_accept_channel();
accept_channel_msg.dust_limit_satoshis = 546;
- node_a_chan.accept_channel(&accept_channel_msg, &config, &InitFeatures::known()).unwrap();
+ node_a_chan.accept_channel(&accept_channel_msg, &config.peer_channel_config_limits, &InitFeatures::known()).unwrap();
node_a_chan.holder_dust_limit_satoshis = 1560;
// Put some inbound and outbound HTLCs in A's channel.
// Node B --> Node A: accept channel
let accept_channel_msg = node_b_chan.get_accept_channel();
- node_a_chan.accept_channel(&accept_channel_msg, &config, &InitFeatures::known()).unwrap();
+ node_a_chan.accept_channel(&accept_channel_msg, &config.peer_channel_config_limits, &InitFeatures::known()).unwrap();
// Node A --> Node B: funding created
let output_script = node_a_chan.get_funding_redeemscript();
if chan.get().get_counterparty_node_id() != *counterparty_node_id {
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.temporary_channel_id));
}
- try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration, &their_features), channel_state, chan);
+ try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration.peer_channel_config_limits, &their_features), channel_state, chan);
(chan.get().get_value_satoshis(), chan.get().get_funding_redeemscript().to_v0_p2wsh(), chan.get().get_user_id())
},
hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.temporary_channel_id))
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
- let scorer = test_utils::TestScorer::with_fixed_penalty(0);
+ let scorer = test_utils::TestScorer::with_penalty(0);
// To start (1), send a regular payment but don't claim it.
let expected_route = [&nodes[1]];
};
let network_graph = nodes[0].network_graph;
let first_hops = nodes[0].node.list_usable_channels();
- let scorer = test_utils::TestScorer::with_fixed_penalty(0);
+ let scorer = test_utils::TestScorer::with_penalty(0);
let route = find_route(
&payer_pubkey, &route_params, network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
nodes[0].logger, &scorer
};
let network_graph = nodes[0].network_graph;
let first_hops = nodes[0].node.list_usable_channels();
- let scorer = test_utils::TestScorer::with_fixed_penalty(0);
+ let scorer = test_utils::TestScorer::with_penalty(0);
let route = find_route(
&payer_pubkey, &route_params, network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
nodes[0].logger, &scorer
use ln::msgs::{ChannelMessageHandler, Init};
use routing::network_graph::NetworkGraph;
use routing::router::{PaymentParameters, get_route};
- use routing::scoring::Scorer;
use util::test_utils;
use util::config::UserConfig;
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
let usable_channels = $node_a.list_usable_channels();
let payment_params = PaymentParameters::from_node_id($node_b.get_our_node_id())
.with_features(InvoiceFeatures::known());
- let scorer = Scorer::with_fixed_penalty(0);
+ let scorer = test_utils::TestScorer::with_penalty(0);
let route = get_route(&$node_a.get_our_node_id(), &payment_params, &dummy_graph,
Some(&usable_channels.iter().map(|r| r).collect::<Vec<_>>()), 10_000, TEST_FINAL_CLTV, &logger_a, &scorer).unwrap();
projects / rust-lightning / commitdiff