#[allow(dead_code)]
const CHECK_CLTV_EXPIRY_SANITY_2: u32 = MIN_CLTV_EXPIRY_DELTA as u32 - LATENCY_GRACE_PERIOD_BLOCKS - 2*CLTV_CLAIM_BUFFER;
+/// Channel parameters which apply to our counterparty. These are split out from [`ChannelDetails`]
+/// to better separate parameters.
+#[derive(Clone, Debug, PartialEq)]
+pub struct ChannelCounterparty {
+ /// The node_id of our counterparty
+ pub node_id: PublicKey,
+ /// The Features the channel counterparty provided upon last connection.
+ /// Useful for routing as it is the most up-to-date copy of the counterparty's features and
+ /// many routing-relevant features are present in the init context.
+ pub features: InitFeatures,
+ /// The value, in satoshis, that must always be held in the channel for our counterparty. This
+ /// value ensures that if our counterparty broadcasts a revoked state, we can punish them by
+ /// claiming at least this value on chain.
+ ///
+ /// This value is not included in [`inbound_capacity_msat`] as it can never be spent.
+ ///
+ /// [`inbound_capacity_msat`]: ChannelDetails::inbound_capacity_msat
+ pub unspendable_punishment_reserve: u64,
+ /// Information on the fees and requirements that the counterparty requires when forwarding
+ /// payments to us through this channel.
+ pub forwarding_info: Option<CounterpartyForwardingInfo>,
+}
+
/// Details of a channel, as returned by ChannelManager::list_channels and ChannelManager::list_usable_channels
#[derive(Clone, Debug, PartialEq)]
pub struct ChannelDetails {
/// Note that this means this value is *not* persistent - it can change once during the
/// lifetime of the channel.
pub channel_id: [u8; 32],
+ /// Parameters which apply to our counterparty. See individual fields for more information.
+ pub counterparty: ChannelCounterparty,
/// The Channel's funding transaction output, if we've negotiated the funding transaction with
/// our counterparty already.
///
/// The position of the funding transaction in the chain. None if the funding transaction has
/// not yet been confirmed and the channel fully opened.
pub short_channel_id: Option<u64>,
- /// The node_id of our counterparty
- pub remote_network_id: PublicKey,
- /// The Features the channel counterparty provided upon last connection.
- /// Useful for routing as it is the most up-to-date copy of the counterparty's features and
- /// many routing-relevant features are present in the init context.
- pub counterparty_features: InitFeatures,
/// The value, in satoshis, of this channel as appears in the funding output
pub channel_value_satoshis: u64,
/// The value, in satoshis, that must always be held in the channel for us. This value ensures
/// This value will be `None` for outbound channels until the counterparty accepts the channel.
///
/// [`outbound_capacity_msat`]: ChannelDetails::outbound_capacity_msat
- pub to_self_reserve_satoshis: Option<u64>,
- /// The value, in satoshis, that must always be held in the channel for our counterparty. This
- /// value ensures that if our counterparty broadcasts a revoked state, we can punish them by
- /// claiming at least this value on chain.
- ///
- /// This value is not included in [`inbound_capacity_msat`] as it can never be spent.
- ///
- /// [`inbound_capacity_msat`]: ChannelDetails::inbound_capacity_msat
- pub to_remote_reserve_satoshis: u64,
+ pub unspendable_punishment_reserve: Option<u64>,
/// The user_id passed in to create_channel, or 0 if the channel was inbound.
pub user_id: u64,
/// The available outbound capacity for sending HTLCs to the remote peer. This does not include
/// time to claim our non-HTLC-encumbered funds.
///
/// This value will be `None` for outbound channels until the counterparty accepts the channel.
- pub spend_csv_on_our_commitment_funds: Option<u16>,
+ pub force_close_spend_delay: Option<u16>,
/// True if the channel was initiated (and thus funded) by us.
pub is_outbound: bool,
/// True if the channel is confirmed, funding_locked messages have been exchanged, and the
pub is_usable: bool,
/// True if this channel is (or will be) publicly-announced.
pub is_public: bool,
- /// Information on the fees and requirements that the counterparty requires when forwarding
- /// payments to us through this channel.
- pub counterparty_forwarding_info: Option<CounterpartyForwardingInfo>,
}
/// If a payment fails to send, it can be in one of several states. This enum is returned as the
///
/// Raises APIError::APIMisuseError when channel_value_satoshis > 2**24 or push_msat is
/// greater than channel_value_satoshis * 1k or channel_value_satoshis is < 1000.
+ ///
+ /// Note that we do not check if you are currently connected to the given peer. If no
+ /// connection is available, the outbound `open_channel` message may fail to send, resulting in
+ /// the channel eventually being silently forgotten.
pub fn create_channel(&self, their_network_key: PublicKey, channel_value_satoshis: u64, push_msat: u64, user_id: u64, override_config: Option<UserConfig>) -> Result<(), APIError> {
if channel_value_satoshis < 1000 {
return Err(APIError::APIMisuseError { err: format!("Channel value must be at least 1000 satoshis. It was {}", channel_value_satoshis) });
channel.get_holder_counterparty_selected_channel_reserve_satoshis();
res.push(ChannelDetails {
channel_id: (*channel_id).clone(),
+ counterparty: ChannelCounterparty {
+ node_id: channel.get_counterparty_node_id(),
+ features: InitFeatures::empty(),
+ unspendable_punishment_reserve: to_remote_reserve_satoshis,
+ forwarding_info: channel.counterparty_forwarding_info(),
+ },
funding_txo: channel.get_funding_txo(),
short_channel_id: channel.get_short_channel_id(),
- remote_network_id: channel.get_counterparty_node_id(),
- counterparty_features: InitFeatures::empty(),
channel_value_satoshis: channel.get_value_satoshis(),
- to_self_reserve_satoshis,
- to_remote_reserve_satoshis,
+ unspendable_punishment_reserve: to_self_reserve_satoshis,
inbound_capacity_msat,
outbound_capacity_msat,
user_id: channel.get_user_id(),
confirmations_required: channel.minimum_depth(),
- spend_csv_on_our_commitment_funds: channel.get_counterparty_selected_contest_delay(),
+ force_close_spend_delay: channel.get_counterparty_selected_contest_delay(),
is_outbound: channel.is_outbound(),
is_funding_locked: channel.is_usable(),
is_usable: channel.is_live(),
is_public: channel.should_announce(),
- counterparty_forwarding_info: channel.counterparty_forwarding_info(),
});
}
}
let per_peer_state = self.per_peer_state.read().unwrap();
for chan in res.iter_mut() {
- if let Some(peer_state) = per_peer_state.get(&chan.remote_network_id) {
- chan.counterparty_features = peer_state.lock().unwrap().latest_features.clone();
+ if let Some(peer_state) = per_peer_state.get(&chan.counterparty.node_id) {
+ chan.counterparty.features = peer_state.lock().unwrap().latest_features.clone();
}
}
res
// short_channel_id is non-0 in any ::Forward.
if let &PendingHTLCRouting::Forward { ref short_channel_id, .. } = routing {
let id_option = channel_state.as_ref().unwrap().short_to_id.get(&short_channel_id).cloned();
- let forwarding_id = match id_option {
- None => { // unknown_next_peer
- return_err!("Don't have available channel for forwarding as requested.", 0x4000 | 10, &[0;0]);
- },
- Some(id) => id.clone(),
- };
if let Some((err, code, chan_update)) = loop {
+ let forwarding_id = match id_option {
+ None => { // unknown_next_peer
+ break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
+ },
+ Some(id) => id.clone(),
+ };
+
let chan = channel_state.as_mut().unwrap().by_id.get_mut(&forwarding_id).unwrap();
+ if !chan.should_announce() && !self.default_configuration.accept_forwards_to_priv_channels {
+ // Note that the behavior here should be identical to the above block - we
+ // should NOT reveal the existence or non-existence of a private channel if
+ // we don't allow forwards outbound over them.
+ break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
+ }
+
// Note that we could technically not return an error yet here and just hope
// that the connection is reestablished or monitor updated by the time we get
// around to doing the actual forward, but better to fail early if we can and
if *amt_to_forward < chan.get_counterparty_htlc_minimum_msat() { // amount_below_minimum
break Some(("HTLC amount was below the htlc_minimum_msat", 0x1000 | 11, Some(self.get_channel_update_for_unicast(chan).unwrap())));
}
- let fee = amt_to_forward.checked_mul(chan.get_fee_proportional_millionths() as u64).and_then(|prop_fee| { (prop_fee / 1000000).checked_add(chan.get_holder_fee_base_msat(&self.fee_estimator) as u64) });
+ let fee = amt_to_forward.checked_mul(chan.get_fee_proportional_millionths() as u64)
+ .and_then(|prop_fee| { (prop_fee / 1000000)
+ .checked_add(chan.get_outbound_forwarding_fee_base_msat() as u64) });
if fee.is_none() || msg.amount_msat < fee.unwrap() || (msg.amount_msat - fee.unwrap()) < *amt_to_forward { // fee_insufficient
break Some(("Prior hop has deviated from specified fees parameters or origin node has obsolete ones", 0x1000 | 12, Some(self.get_channel_update_for_unicast(chan).unwrap())));
}
cltv_expiry_delta: chan.get_cltv_expiry_delta(),
htlc_minimum_msat: chan.get_counterparty_htlc_minimum_msat(),
htlc_maximum_msat: OptionalField::Present(chan.get_announced_htlc_max_msat()),
- fee_base_msat: chan.get_holder_fee_base_msat(&self.fee_estimator),
+ fee_base_msat: chan.get_outbound_forwarding_fee_base_msat(),
fee_proportional_millionths: chan.get_fee_proportional_millionths(),
excess_data: Vec::new(),
};
if msg.channel_id == [0; 32] {
for chan in self.list_channels() {
- if chan.remote_network_id == *counterparty_node_id {
+ if chan.counterparty.node_id == *counterparty_node_id {
// Untrusted messages from peer, we throw away the error if id points to a non-existent channel
let _ = self.force_close_channel_with_peer(&chan.channel_id, Some(counterparty_node_id));
}
let genesis_hash = bitcoin::blockdata::constants::genesis_block(network).header.block_hash();
let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new()), blocks: Arc::new(Mutex::new(Vec::new()))};
- let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
+ let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
let mut config: UserConfig = Default::default();
config.own_channel_config.minimum_depth = 1;
projects / rust-lightning / blobdiff