use ln::msgs;
use ln::msgs::{DecodeError, OptionalField, DataLossProtect};
use ln::script::ShutdownScript;
-use ln::channelmanager::{PendingHTLCStatus, HTLCSource, HTLCFailReason, HTLCFailureMsg, PendingHTLCInfo, RAACommitmentOrder, BREAKDOWN_TIMEOUT, MIN_CLTV_EXPIRY_DELTA, MAX_LOCAL_BREAKDOWN_TIMEOUT};
+use ln::channelmanager::{CounterpartyForwardingInfo, PendingHTLCStatus, HTLCSource, HTLCFailReason, HTLCFailureMsg, PendingHTLCInfo, RAACommitmentOrder, BREAKDOWN_TIMEOUT, MIN_CLTV_EXPIRY_DELTA, MAX_LOCAL_BREAKDOWN_TIMEOUT};
use ln::chan_utils::{CounterpartyCommitmentSecrets, TxCreationKeys, HTLCOutputInCommitment, HTLC_SUCCESS_TX_WEIGHT, HTLC_TIMEOUT_TX_WEIGHT, make_funding_redeemscript, ChannelPublicKeys, CommitmentTransaction, HolderCommitmentTransaction, ChannelTransactionParameters, CounterpartyChannelTransactionParameters, MAX_HTLCS, get_commitment_transaction_number_obscure_factor, ClosingTransaction};
use ln::chan_utils;
use chain::BestBlock;
}
}
-/// Information needed for constructing an invoice route hint for this channel.
-#[derive(Clone, Debug, PartialEq)]
-pub struct CounterpartyForwardingInfo {
- /// Base routing fee in millisatoshis.
- pub fee_base_msat: u32,
- /// Amount in millionths of a satoshi the channel will charge per transferred satoshi.
- pub fee_proportional_millionths: u32,
- /// The minimum difference in cltv_expiry between an ingoing HTLC and its outgoing counterpart,
- /// such that the outgoing HTLC is forwardable to this counterparty. See `msgs::ChannelUpdate`'s
- /// `cltv_expiry_delta` for more details.
- pub cltv_expiry_delta: u16,
-}
-
/// A return value enum for get_update_fulfill_htlc. See UpdateFulfillCommitFetch variants for
/// description
enum UpdateFulfillFetch {
/// upper bound to avoid negotiation conflicts with other implementations.
pub const MAX_DUST_LIMIT_SATOSHIS: u64 = 2 * 330;
-/// A typical p2wsh output is 43 bytes to which Core's `GetDustThreshold()` sums up a minimal
-/// spend of 67 bytes (even if a p2wsh witnessScript might be *effectively* smaller), `dustRelayFee`
-/// is set to 3000sat/kb, thus 110 * 3000 / 1000 = 330. Per-protocol rules, all time-sensitive outputs
-/// are p2wsh, a value of 330 sats is the lower bound desired to ensure good propagation of transactions.
-pub const MIN_DUST_LIMIT_SATOSHIS: u64 = 330;
+/// The dust limit is used for both the commitment transaction outputs as well as the closing
+/// transactions. For cooperative closing transactions, we require segwit outputs, though accept
+/// *any* segwit scripts, which are allowed to be up to 42 bytes in length.
+/// In order to avoid having to concern ourselves with standardness during the closing process, we
+/// simply require our counterparty to use a dust limit which will leave any segwit output
+/// standard.
+/// See https://github.com/lightningnetwork/lightning-rfc/issues/905 for more details.
+pub const MIN_DUST_LIMIT_SATOSHIS: u64 = 354;
/// Used to return a simple Error back to ChannelManager. Will get converted to a
/// msgs::ErrorAction::SendErrorMessage or msgs::ErrorAction::IgnoreError as appropriate with our
// We can't accept HTLCs sent after we've sent a shutdown.
let local_sent_shutdown = (self.channel_state & (ChannelState::ChannelFunded as u32 | ChannelState::LocalShutdownSent as u32)) != (ChannelState::ChannelFunded as u32);
if local_sent_shutdown {
- pending_forward_status = create_pending_htlc_status(self, pending_forward_status, 0x1000|20);
+ pending_forward_status = create_pending_htlc_status(self, pending_forward_status, 0x4000|8);
}
// If the remote has sent a shutdown prior to adding this HTLC, then they are in violation of the spec.
let remote_sent_shutdown = (self.channel_state & (ChannelState::ChannelFunded as u32 | ChannelState::RemoteShutdownSent as u32)) != (ChannelState::ChannelFunded as u32);
/// monitor update failure must *not* have been sent to the remote end, and must instead
/// have been dropped. They will be regenerated when monitor_updating_restored is called.
pub fn monitor_update_failed(&mut self, resend_raa: bool, resend_commitment: bool, mut pending_forwards: Vec<(PendingHTLCInfo, u64)>, mut pending_fails: Vec<(HTLCSource, PaymentHash, HTLCFailReason)>) {
- assert_eq!(self.channel_state & ChannelState::MonitorUpdateFailed as u32, 0);
- self.monitor_pending_revoke_and_ack = resend_raa;
- self.monitor_pending_commitment_signed = resend_commitment;
- assert!(self.monitor_pending_forwards.is_empty());
- mem::swap(&mut pending_forwards, &mut self.monitor_pending_forwards);
- assert!(self.monitor_pending_failures.is_empty());
- mem::swap(&mut pending_fails, &mut self.monitor_pending_failures);
+ self.monitor_pending_revoke_and_ack |= resend_raa;
+ self.monitor_pending_commitment_signed |= resend_commitment;
+ self.monitor_pending_forwards.append(&mut pending_forwards);
+ self.monitor_pending_failures.append(&mut pending_fails);
self.channel_state |= ChannelState::MonitorUpdateFailed as u32;
}