use prelude::*;
use core::{cmp,mem,fmt};
use core::ops::Deref;
-#[cfg(any(test, feature = "fuzztarget", debug_assertions))]
+#[cfg(any(test, fuzzing, debug_assertions))]
use sync::Mutex;
use bitcoin::hashes::hex::ToHex;
// `next_remote_commit_tx_fee_msat` properly predict what the next commitment transaction fee will
// be, by comparing the cached values to the fee of the tranaction generated by
// `build_commitment_transaction`.
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_local_commitment_tx_fee_info_cached: Mutex<Option<CommitmentTxInfoCached>>,
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_remote_commitment_tx_fee_info_cached: Mutex<Option<CommitmentTxInfoCached>>,
/// lnd has a long-standing bug where, upon reconnection, if the channel is not yet confirmed
/// See-also <https://github.com/lightningnetwork/lnd/issues/4006>
pub workaround_lnd_bug_4006: Option<msgs::FundingLocked>,
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
// When we receive an HTLC fulfill on an outbound path, we may immediately fulfill the
// corresponding HTLC on the inbound path. If, then, the outbound path channel is
// disconnected and reconnected (before we've exchange commitment_signed and revoke_and_ack
/// This channel's type, as negotiated during channel open
channel_type: ChannelTypeFeatures,
+
+ // Our counterparty can offer us SCID aliases which they will map to this channel when routing
+ // outbound payments. These can be used in invoice route hints to avoid explicitly revealing
+ // the channel's funding UTXO.
+ // We only bother storing the most recent SCID alias at any time, though our counterparty has
+ // to store all of them.
+ latest_inbound_scid_alias: Option<u64>,
+
+ // We always offer our counterparty a static SCID alias, which we recognize as for this channel
+ // if we see it in HTLC forwarding instructions. We don't bother rotating the alias given we
+ // don't currently support node id aliases and eventually privacy should be provided with
+ // blinded paths instead of simple scid+node_id aliases.
+ outbound_scid_alias: u64,
}
-#[cfg(any(test, feature = "fuzztarget"))]
+#[cfg(any(test, fuzzing))]
struct CommitmentTxInfoCached {
fee: u64,
total_pending_htlcs: usize,
pub const ANCHOR_OUTPUT_VALUE_SATOSHI: u64 = 330;
-/// Maximum `funding_satoshis` value, according to the BOLT #2 specification
-/// it's 2^24.
-pub const MAX_FUNDING_SATOSHIS: u64 = 1 << 24;
+/// Maximum `funding_satoshis` value according to the BOLT #2 specification, if
+/// `option_support_large_channel` (aka wumbo channels) is not supported.
+/// It's 2^24 - 1.
+pub const MAX_FUNDING_SATOSHIS_NO_WUMBO: u64 = (1 << 24) - 1;
+
+/// Total bitcoin supply in satoshis.
+pub const TOTAL_BITCOIN_SUPPLY_SATOSHIS: u64 = 21_000_000 * 1_0000_0000;
/// The maximum network dust limit for standard script formats. This currently represents the
/// minimum output value for a P2SH output before Bitcoin Core 22 considers the entire
self.channel_transaction_parameters.opt_anchors.is_some()
}
+ fn get_initial_channel_type(config: &UserConfig) -> ChannelTypeFeatures {
+ // The default channel type (ie the first one we try) depends on whether the channel is
+ // public - if it is, we just go with `only_static_remotekey` as it's the only option
+ // available. If it's private, we first try `scid_privacy` as it provides better privacy
+ // with no other changes, and fall back to `only_static_remotekey`
+ let mut ret = ChannelTypeFeatures::only_static_remote_key();
+ if !config.channel_options.announced_channel && config.own_channel_config.negotiate_scid_privacy {
+ ret.set_scid_privacy_required();
+ }
+ ret
+ }
+
+ /// If we receive an error message, it may only be a rejection of the channel type we tried,
+ /// not of our ability to open any channel at all. Thus, on error, we should first call this
+ /// and see if we get a new `OpenChannel` message, otherwise the channel is failed.
+ pub(crate) fn maybe_handle_error_without_close(&mut self, chain_hash: BlockHash) -> Result<msgs::OpenChannel, ()> {
+ if !self.is_outbound() || self.channel_state != ChannelState::OurInitSent as u32 { return Err(()); }
+ if self.channel_type == ChannelTypeFeatures::only_static_remote_key() {
+ // We've exhausted our options
+ return Err(());
+ }
+ self.channel_type = ChannelTypeFeatures::only_static_remote_key(); // We only currently support two types
+ Ok(self.get_open_channel(chain_hash))
+ }
+
// Constructors:
pub fn new_outbound<K: Deref, F: Deref>(
fee_estimator: &F, keys_provider: &K, counterparty_node_id: PublicKey, their_features: &InitFeatures,
- channel_value_satoshis: u64, push_msat: u64, user_id: u64, config: &UserConfig, current_chain_height: u32
+ channel_value_satoshis: u64, push_msat: u64, user_id: u64, config: &UserConfig, current_chain_height: u32,
+ outbound_scid_alias: u64
) -> Result<Channel<Signer>, APIError>
where K::Target: KeysInterface<Signer = Signer>,
F::Target: FeeEstimator,
let holder_signer = keys_provider.get_channel_signer(false, channel_value_satoshis);
let pubkeys = holder_signer.pubkeys().clone();
- if channel_value_satoshis >= MAX_FUNDING_SATOSHIS {
- return Err(APIError::APIMisuseError{err: format!("funding_value must be smaller than {}, it was {}", MAX_FUNDING_SATOSHIS, channel_value_satoshis)});
+ if !their_features.supports_wumbo() && channel_value_satoshis > MAX_FUNDING_SATOSHIS_NO_WUMBO {
+ return Err(APIError::APIMisuseError{err: format!("funding_value must not exceed {}, it was {}", MAX_FUNDING_SATOSHIS_NO_WUMBO, channel_value_satoshis)});
+ }
+ if channel_value_satoshis >= TOTAL_BITCOIN_SUPPLY_SATOSHIS {
+ return Err(APIError::APIMisuseError{err: format!("funding_value must be smaller than the total bitcoin supply, it was {}", channel_value_satoshis)});
}
let channel_value_msat = channel_value_satoshis * 1000;
if push_msat > channel_value_msat {
announcement_sigs: None,
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_local_commitment_tx_fee_info_cached: Mutex::new(None),
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_remote_commitment_tx_fee_info_cached: Mutex::new(None),
workaround_lnd_bug_4006: None,
- #[cfg(any(test, feature = "fuzztarget"))]
+ latest_inbound_scid_alias: None,
+ outbound_scid_alias,
+
+ #[cfg(any(test, fuzzing))]
historical_inbound_htlc_fulfills: HashSet::new(),
- // We currently only actually support one channel type, so don't retry with new types
- // on error messages. When we support more we'll need fallback support (assuming we
- // want to support old types).
- channel_type: ChannelTypeFeatures::only_static_remote_key(),
+ channel_type: Self::get_initial_channel_type(&config),
})
}
/// Assumes chain_hash has already been checked and corresponds with what we expect!
pub fn new_from_req<K: Deref, F: Deref, L: Deref>(
fee_estimator: &F, keys_provider: &K, counterparty_node_id: PublicKey, their_features: &InitFeatures,
- msg: &msgs::OpenChannel, user_id: u64, config: &UserConfig, current_chain_height: u32, logger: &L
+ msg: &msgs::OpenChannel, user_id: u64, config: &UserConfig, current_chain_height: u32, logger: &L,
+ outbound_scid_alias: u64
) -> Result<Channel<Signer>, ChannelError>
where K::Target: KeysInterface<Signer = Signer>,
F::Target: FeeEstimator,
L::Target: Logger,
{
let opt_anchors = false; // TODO - should be based on features
+ let announced_channel = if (msg.channel_flags & 1) == 1 { true } else { false };
// First check the channel type is known, failing before we do anything else if we don't
// support this channel type.
if channel_type.supports_any_optional_bits() {
return Err(ChannelError::Close("Channel Type field contained optional bits - this is not allowed".to_owned()));
}
- if *channel_type != ChannelTypeFeatures::only_static_remote_key() {
- return Err(ChannelError::Close("Channel Type was not understood".to_owned()));
+ // We currently only allow two channel types, so write it all out here - we allow
+ // `only_static_remote_key` in all contexts, and further allow
+ // `static_remote_key|scid_privacy` if the channel is not publicly announced.
+ let mut allowed_type = ChannelTypeFeatures::only_static_remote_key();
+ if *channel_type != allowed_type {
+ allowed_type.set_scid_privacy_required();
+ if *channel_type != allowed_type {
+ return Err(ChannelError::Close("Channel Type was not understood".to_owned()));
+ }
+ if announced_channel {
+ return Err(ChannelError::Close("SCID Alias/Privacy Channel Type cannot be set on a public channel".to_owned()));
+ }
}
channel_type.clone()
} else {
}
// Check sanity of message fields:
- if msg.funding_satoshis >= MAX_FUNDING_SATOSHIS {
- return Err(ChannelError::Close(format!("Funding must be smaller than {}. It was {}", MAX_FUNDING_SATOSHIS, msg.funding_satoshis)));
+ if msg.funding_satoshis > config.peer_channel_config_limits.max_funding_satoshis {
+ return Err(ChannelError::Close(format!("Per our config, funding must be at most {}. It was {}", config.peer_channel_config_limits.max_funding_satoshis, msg.funding_satoshis)));
+ }
+ if msg.funding_satoshis >= TOTAL_BITCOIN_SUPPLY_SATOSHIS {
+ return Err(ChannelError::Close(format!("Funding must be smaller than the total bitcoin supply. It was {}", msg.funding_satoshis)));
}
if msg.channel_reserve_satoshis > msg.funding_satoshis {
return Err(ChannelError::Close(format!("Bogus channel_reserve_satoshis ({}). Must be not greater than funding_satoshis: {}", msg.channel_reserve_satoshis, msg.funding_satoshis)));
// Convert things into internal flags and prep our state:
- let announce = if (msg.channel_flags & 1) == 1 { true } else { false };
if config.peer_channel_config_limits.force_announced_channel_preference {
- if local_config.announced_channel != announce {
+ if local_config.announced_channel != announced_channel {
return Err(ChannelError::Close("Peer tried to open channel but their announcement preference is different from ours".to_owned()));
}
}
// we either accept their preference or the preferences match
- local_config.announced_channel = announce;
+ local_config.announced_channel = announced_channel;
let holder_selected_channel_reserve_satoshis = Channel::<Signer>::get_holder_selected_channel_reserve_satoshis(msg.funding_satoshis);
if holder_selected_channel_reserve_satoshis < MIN_CHAN_DUST_LIMIT_SATOSHIS {
announcement_sigs: None,
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_local_commitment_tx_fee_info_cached: Mutex::new(None),
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_remote_commitment_tx_fee_info_cached: Mutex::new(None),
workaround_lnd_bug_4006: None,
- #[cfg(any(test, feature = "fuzztarget"))]
+ latest_inbound_scid_alias: None,
+ outbound_scid_alias,
+
+ #[cfg(any(test, fuzzing))]
historical_inbound_htlc_fulfills: HashSet::new(),
channel_type,
}
}
if pending_idx == core::usize::MAX {
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
// If we failed to find an HTLC to fulfill, make sure it was previously fulfilled and
// this is simply a duplicate claim, not previously failed and we lost funds.
debug_assert!(self.historical_inbound_htlc_fulfills.contains(&htlc_id_arg));
if htlc_id_arg == htlc_id {
// Make sure we don't leave latest_monitor_update_id incremented here:
self.latest_monitor_update_id -= 1;
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
debug_assert!(self.historical_inbound_htlc_fulfills.contains(&htlc_id_arg));
return UpdateFulfillFetch::DuplicateClaim {};
}
self.holding_cell_htlc_updates.push(HTLCUpdateAwaitingACK::ClaimHTLC {
payment_preimage: payment_preimage_arg, htlc_id: htlc_id_arg,
});
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
self.historical_inbound_htlc_fulfills.insert(htlc_id_arg);
return UpdateFulfillFetch::NewClaim { monitor_update, htlc_value_msat, msg: None };
}
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
self.historical_inbound_htlc_fulfills.insert(htlc_id_arg);
{
}
}
if pending_idx == core::usize::MAX {
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
// If we failed to find an HTLC to fail, make sure it was previously fulfilled and this
// is simply a duplicate fail, not previously failed and we failed-back too early.
debug_assert!(self.historical_inbound_htlc_fulfills.contains(&htlc_id_arg));
match pending_update {
&HTLCUpdateAwaitingACK::ClaimHTLC { htlc_id, .. } => {
if htlc_id_arg == htlc_id {
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
debug_assert!(self.historical_inbound_htlc_fulfills.contains(&htlc_id_arg));
return Ok(None);
}
return Err(ChannelError::Close("Minimum confirmation depth must be at least 1".to_owned()));
}
+ if let Some(ty) = &msg.channel_type {
+ if *ty != self.channel_type {
+ return Err(ChannelError::Close("Channel Type in accept_channel didn't match the one sent in open_channel.".to_owned()));
+ }
+ } else if their_features.supports_channel_type() {
+ // Assume they've accepted the channel type as they said they understand it.
+ } else {
+ self.channel_type = ChannelTypeFeatures::from_counterparty_init(&their_features)
+ }
+
let counterparty_shutdown_scriptpubkey = if their_features.supports_upfront_shutdown_script() {
match &msg.shutdown_scriptpubkey {
&OptionalField::Present(ref script) => {
return Err(ChannelError::Ignore("Peer sent funding_locked when we needed a channel_reestablish. The peer is likely lnd, see https://github.com/lightningnetwork/lnd/issues/4006".to_owned()));
}
+ if let Some(scid_alias) = msg.short_channel_id_alias {
+ if Some(scid_alias) != self.short_channel_id {
+ // The scid alias provided can be used to route payments *from* our counterparty,
+ // i.e. can be used for inbound payments and provided in invoices, but is not used
+ // when routing outbound payments.
+ self.latest_inbound_scid_alias = Some(scid_alias);
+ }
+ }
+
let non_shutdown_state = self.channel_state & (!MULTI_STATE_FLAGS);
if non_shutdown_state == ChannelState::FundingSent as u32 {
} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::OurFundingLocked as u32) {
self.channel_state = ChannelState::ChannelFunded as u32 | (self.channel_state & MULTI_STATE_FLAGS);
self.update_time_counter += 1;
- } else if (self.channel_state & (ChannelState::ChannelFunded as u32) != 0 &&
- // Note that funding_signed/funding_created will have decremented both by 1!
- self.cur_holder_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 &&
- self.cur_counterparty_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1) ||
- // If we reconnected before sending our funding locked they may still resend theirs:
- (self.channel_state & (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) ==
- (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32)) {
- if self.counterparty_cur_commitment_point != Some(msg.next_per_commitment_point) {
+ } else if self.channel_state & (ChannelState::ChannelFunded as u32) != 0 ||
+ // If we reconnected before sending our funding locked they may still resend theirs:
+ (self.channel_state & (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) ==
+ (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32))
+ {
+ // They probably disconnected/reconnected and re-sent the funding_locked, which is
+ // required, or they're sending a fresh SCID alias.
+ let expected_point =
+ if self.cur_counterparty_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 {
+ // If they haven't ever sent an updated point, the point they send should match
+ // the current one.
+ self.counterparty_cur_commitment_point
+ } else {
+ // If they have sent updated points, funding_locked is always supposed to match
+ // their "first" point, which we re-derive here.
+ Some(PublicKey::from_secret_key(&self.secp_ctx, &SecretKey::from_slice(
+ &self.commitment_secrets.get_secret(INITIAL_COMMITMENT_NUMBER - 1).expect("We should have all prev secrets available")
+ ).expect("We already advanced, so previous secret keys should have been validated already")))
+ };
+ if expected_point != Some(msg.next_per_commitment_point) {
return Err(ChannelError::Close("Peer sent a reconnect funding_locked with a different point".to_owned()));
}
- // They probably disconnected/reconnected and re-sent the funding_locked, which is required
return Ok(None);
} else {
return Err(ChannelError::Close("Peer sent a funding_locked at a strange time".to_owned()));
/// Returns transaction if there is pending funding transaction that is yet to broadcast
pub fn unbroadcasted_funding(&self) -> Option<Transaction> {
- if self.channel_state & (ChannelState::FundingCreated as u32) != 0 {
- self.funding_transaction.clone()
- } else {
- None
- }
+ if self.channel_state & (ChannelState::FundingCreated as u32) != 0 {
+ self.funding_transaction.clone()
+ } else {
+ None
+ }
}
/// Returns a HTLCStats about inbound pending htlcs
let num_htlcs = included_htlcs + addl_htlcs;
let res = Self::commit_tx_fee_msat(self.feerate_per_kw, num_htlcs, self.opt_anchors());
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
{
let mut fee = res;
if fee_spike_buffer_htlc.is_some() {
let num_htlcs = included_htlcs + addl_htlcs;
let res = Self::commit_tx_fee_msat(self.feerate_per_kw, num_htlcs, self.opt_anchors());
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
{
let mut fee = res;
if fee_spike_buffer_htlc.is_some() {
return Err((None, ChannelError::Close("Funding remote cannot afford proposed new fee".to_owned())));
}
}
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
{
if self.is_outbound() {
let projected_commit_tx_info = self.next_local_commitment_tx_fee_info_cached.lock().unwrap().take();
return Err(ChannelError::Close("Received an unexpected revoke_and_ack".to_owned()));
}
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
{
*self.next_local_commitment_tx_fee_info_cached.lock().unwrap() = None;
*self.next_remote_commitment_tx_fee_info_cached.lock().unwrap() = None;
Some(msgs::FundingLocked {
channel_id: self.channel_id(),
next_per_commitment_point,
+ short_channel_id_alias: Some(self.outbound_scid_alias),
})
} else { None };
funding_locked: Some(msgs::FundingLocked {
channel_id: self.channel_id(),
next_per_commitment_point,
+ short_channel_id_alias: Some(self.outbound_scid_alias),
}),
raa: None, commitment_update: None, mon_update: None,
order: RAACommitmentOrder::CommitmentFirst,
Some(msgs::FundingLocked {
channel_id: self.channel_id(),
next_per_commitment_point,
+ short_channel_id_alias: Some(self.outbound_scid_alias),
})
} else { None };
if !self.pending_inbound_htlcs.is_empty() || !self.pending_outbound_htlcs.is_empty() {
return Err(ChannelError::Close("Remote end sent us a closing_signed while there were still pending HTLCs".to_owned()));
}
- if msg.fee_satoshis > 21_000_000 * 1_0000_0000 { //this is required to stop potential overflow in build_closing_transaction
+ if msg.fee_satoshis > TOTAL_BITCOIN_SUPPLY_SATOSHIS { // this is required to stop potential overflow in build_closing_transaction
return Err(ChannelError::Close("Remote tried to send us a closing tx with > 21 million BTC fee".to_owned()));
}
self.user_id
}
+ /// Gets the channel's type
+ pub fn get_channel_type(&self) -> &ChannelTypeFeatures {
+ &self.channel_type
+ }
+
/// Guaranteed to be Some after both FundingLocked messages have been exchanged (and, thus,
/// is_usable() returns true).
/// Allowed in any state (including after shutdown)
self.short_channel_id
}
+ /// Allowed in any state (including after shutdown)
+ pub fn latest_inbound_scid_alias(&self) -> Option<u64> {
+ self.latest_inbound_scid_alias
+ }
+
+ /// Allowed in any state (including after shutdown)
+ pub fn outbound_scid_alias(&self) -> u64 {
+ self.outbound_scid_alias
+ }
+ /// Only allowed immediately after deserialization if get_outbound_scid_alias returns 0,
+ /// indicating we were written by LDK prior to 0.0.106 which did not set outbound SCID aliases.
+ pub fn set_outbound_scid_alias(&mut self, outbound_scid_alias: u64) {
+ assert_eq!(self.outbound_scid_alias, 0);
+ self.outbound_scid_alias = outbound_scid_alias;
+ }
+
/// Returns the funding_txo we either got from our peer, or were given by
/// get_outbound_funding_created.
pub fn get_funding_txo(&self) -> Option<OutPoint> {
if need_commitment_update {
if self.channel_state & (ChannelState::MonitorUpdateFailed as u32) == 0 {
if self.channel_state & (ChannelState::PeerDisconnected as u32) == 0 {
- let next_per_commitment_point = self.holder_signer.get_per_commitment_point(self.cur_holder_commitment_transaction_number, &self.secp_ctx);
+ let next_per_commitment_point =
+ self.holder_signer.get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - 1, &self.secp_ctx);
return Some(msgs::FundingLocked {
channel_id: self.channel_id,
next_per_commitment_point,
+ short_channel_id_alias: Some(self.outbound_scid_alias),
});
}
} else {
// If we generated the funding transaction and it doesn't match what it
// should, the client is really broken and we should just panic and
// tell them off. That said, because hash collisions happen with high
- // probability in fuzztarget mode, if we're fuzzing we just close the
+ // probability in fuzzing mode, if we're fuzzing we just close the
// channel and move on.
- #[cfg(not(feature = "fuzztarget"))]
+ #[cfg(not(fuzzing))]
panic!("Client called ChannelManager::funding_transaction_generated with bogus transaction!");
}
self.update_time_counter += 1;
if input.witness.is_empty() {
// We generated a malleable funding transaction, implying we've
// just exposed ourselves to funds loss to our counterparty.
- #[cfg(not(feature = "fuzztarget"))]
+ #[cfg(not(fuzzing))]
panic!("Client called ChannelManager::funding_transaction_generated with bogus transaction!");
}
}
/// should be sent back to the counterparty node.
///
/// [`msgs::AcceptChannel`]: crate::ln::msgs::AcceptChannel
- pub fn accept_inbound_channel(&mut self) -> msgs::AcceptChannel {
+ pub fn accept_inbound_channel(&mut self, user_id: u64) -> msgs::AcceptChannel {
if self.is_outbound() {
panic!("Tried to send accept_channel for an outbound channel?");
}
panic!("The inbound channel has already been accepted");
}
+ self.user_id = user_id;
self.inbound_awaiting_accept = false;
self.generate_accept_channel_message()
Some(script) => script.clone().into_inner(),
None => Builder::new().into_script(),
}),
+ channel_type: Some(self.channel_type.clone()),
}
}
// Prior to static_remotekey, my_current_per_commitment_point was critical to claiming
// current to_remote balances. However, it no longer has any use, and thus is now simply
// set to a dummy (but valid, as required by the spec) public key.
- // fuzztarget mode marks a subset of pubkeys as invalid so that we can hit "invalid pubkey"
+ // fuzzing mode marks a subset of pubkeys as invalid so that we can hit "invalid pubkey"
// branches, but we unwrap it below, so we arbitrarily select a dummy pubkey which is both
- // valid, and valid in fuzztarget mode's arbitrary validity criteria:
+ // valid, and valid in fuzzing mode's arbitrary validity criteria:
let mut pk = [2; 33]; pk[1] = 0xff;
let dummy_pubkey = PublicKey::from_slice(&pk).unwrap();
let data_loss_protect = if self.cur_counterparty_commitment_transaction_number + 1 < INITIAL_COMMITMENT_NUMBER {
let counterparty_commitment_txid = commitment_stats.tx.trust().txid();
let (signature, htlc_signatures);
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
{
if !self.is_outbound() {
let projected_commit_tx_info = self.next_remote_commitment_tx_fee_info_cached.lock().unwrap().take();
self.channel_update_status.write(writer)?;
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
(self.historical_inbound_htlc_fulfills.len() as u64).write(writer)?;
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
for htlc in self.historical_inbound_htlc_fulfills.iter() {
htlc.write(writer)?;
}
(13, self.channel_creation_height, required),
(15, preimages, vec_type),
(17, self.announcement_sigs_state, required),
+ (19, self.latest_inbound_scid_alias, option),
+ (21, self.outbound_scid_alias, required),
});
Ok(())
let channel_update_status = Readable::read(reader)?;
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
let mut historical_inbound_htlc_fulfills = HashSet::new();
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
{
let htlc_fulfills_len: u64 = Readable::read(reader)?;
for _ in 0..htlc_fulfills_len {
// If we read an old Channel, for simplicity we just treat it as "we never sent an
// AnnouncementSignatures" which implies we'll re-send it on reconnect, but that's fine.
let mut announcement_sigs_state = Some(AnnouncementSigsState::NotSent);
+ let mut latest_inbound_scid_alias = None;
+ let mut outbound_scid_alias = None;
read_tlv_fields!(reader, {
(0, announcement_sigs, option),
(13, channel_creation_height, option),
(15, preimages_opt, vec_type),
(17, announcement_sigs_state, option),
+ (19, latest_inbound_scid_alias, option),
+ (21, outbound_scid_alias, option),
});
if let Some(preimages) = preimages_opt {
announcement_sigs,
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_local_commitment_tx_fee_info_cached: Mutex::new(None),
- #[cfg(any(test, feature = "fuzztarget"))]
+ #[cfg(any(test, fuzzing))]
next_remote_commitment_tx_fee_info_cached: Mutex::new(None),
workaround_lnd_bug_4006: None,
- #[cfg(any(test, feature = "fuzztarget"))]
+ latest_inbound_scid_alias,
+ // Later in the ChannelManager deserialization phase we scan for channels and assign scid aliases if its missing
+ outbound_scid_alias: outbound_scid_alias.unwrap_or(0),
+
+ #[cfg(any(test, fuzzing))]
historical_inbound_htlc_fulfills,
channel_type: channel_type.unwrap(),
#[cfg(test)]
mod tests {
- use bitcoin::util::bip143;
- use bitcoin::consensus::encode::serialize;
use bitcoin::blockdata::script::{Script, Builder};
- use bitcoin::blockdata::transaction::{Transaction, TxOut, SigHashType};
+ use bitcoin::blockdata::transaction::{Transaction, TxOut};
use bitcoin::blockdata::constants::genesis_block;
use bitcoin::blockdata::opcodes;
use bitcoin::network::constants::Network;
- use bitcoin::hashes::hex::FromHex;
use hex;
- use ln::{PaymentPreimage, PaymentHash};
+ use ln::PaymentHash;
use ln::channelmanager::{HTLCSource, PaymentId};
- use ln::channel::{Channel,InboundHTLCOutput,OutboundHTLCOutput,InboundHTLCState,OutboundHTLCState,HTLCOutputInCommitment,HTLCCandidate,HTLCInitiator,TxCreationKeys};
- use ln::channel::MAX_FUNDING_SATOSHIS;
+ use ln::channel::{Channel, InboundHTLCOutput, OutboundHTLCOutput, InboundHTLCState, OutboundHTLCState, HTLCCandidate, HTLCInitiator};
+ use ln::channel::{MAX_FUNDING_SATOSHIS_NO_WUMBO, TOTAL_BITCOIN_SUPPLY_SATOSHIS};
use ln::features::InitFeatures;
use ln::msgs::{ChannelUpdate, DataLossProtect, DecodeError, OptionalField, UnsignedChannelUpdate};
use ln::script::ShutdownScript;
use ln::chan_utils;
- use ln::chan_utils::{ChannelPublicKeys, HolderCommitmentTransaction, CounterpartyChannelTransactionParameters, htlc_success_tx_weight, htlc_timeout_tx_weight};
+ use ln::chan_utils::{htlc_success_tx_weight, htlc_timeout_tx_weight};
use chain::BestBlock;
use chain::chaininterface::{FeeEstimator,ConfirmationTarget};
- use chain::keysinterface::{InMemorySigner, KeyMaterial, KeysInterface, BaseSign};
+ use chain::keysinterface::{InMemorySigner, Recipient, KeyMaterial, KeysInterface};
use chain::transaction::OutPoint;
use util::config::UserConfig;
use util::enforcing_trait_impls::EnforcingSigner;
use util::errors::APIError;
use util::test_utils;
use util::test_utils::OnGetShutdownScriptpubkey;
- use util::logger::Logger;
- use bitcoin::secp256k1::{Secp256k1, Message, Signature, All};
+ use bitcoin::secp256k1::{Secp256k1, Signature};
use bitcoin::secp256k1::ffi::Signature as FFISignature;
use bitcoin::secp256k1::key::{SecretKey,PublicKey};
use bitcoin::secp256k1::recovery::RecoverableSignature;
use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::hashes::Hash;
- use bitcoin::hash_types::{Txid, WPubkeyHash};
+ use bitcoin::hash_types::WPubkeyHash;
use core::num::NonZeroU8;
use bitcoin::bech32::u5;
- use sync::Arc;
use prelude::*;
struct TestFeeEstimator {
}
#[test]
- fn test_max_funding_satoshis() {
- assert!(MAX_FUNDING_SATOSHIS <= 21_000_000 * 100_000_000,
- "MAX_FUNDING_SATOSHIS is greater than all satoshis in existence");
+ fn test_max_funding_satoshis_no_wumbo() {
+ assert_eq!(TOTAL_BITCOIN_SUPPLY_SATOSHIS, 21_000_000 * 100_000_000);
+ assert!(MAX_FUNDING_SATOSHIS_NO_WUMBO <= TOTAL_BITCOIN_SUPPLY_SATOSHIS,
+ "MAX_FUNDING_SATOSHIS_NO_WUMBO is greater than all satoshis in existence");
}
#[test]
impl KeysInterface for Keys {
type Signer = InMemorySigner;
- fn get_node_secret(&self) -> SecretKey { panic!(); }
+ fn get_node_secret(&self, _recipient: Recipient) -> Result<SecretKey, ()> { panic!(); }
fn get_inbound_payment_key_material(&self) -> KeyMaterial { panic!(); }
fn get_destination_script(&self) -> Script {
let secp_ctx = Secp256k1::signing_only();
}
fn get_secure_random_bytes(&self) -> [u8; 32] { [0; 32] }
fn read_chan_signer(&self, _data: &[u8]) -> Result<Self::Signer, DecodeError> { panic!(); }
- fn sign_invoice(&self, _hrp_bytes: &[u8], _invoice_data: &[u5]) -> Result<RecoverableSignature, ()> { panic!(); }
+ fn sign_invoice(&self, _hrp_bytes: &[u8], _invoice_data: &[u5], _recipient: Recipient) -> Result<RecoverableSignature, ()> { panic!(); }
}
- fn public_from_secret_hex(secp_ctx: &Secp256k1<All>, hex: &str) -> PublicKey {
+ #[cfg(not(feature = "grind_signatures"))]
+ fn public_from_secret_hex(secp_ctx: &Secp256k1<bitcoin::secp256k1::All>, hex: &str) -> PublicKey {
PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&hex::decode(hex).unwrap()[..]).unwrap())
}
let secp_ctx = Secp256k1::new();
let node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
let config = UserConfig::default();
- match Channel::<EnforcingSigner>::new_outbound(&&fee_estimator, &&keys_provider, node_id, &features, 10000000, 100000, 42, &config, 0) {
+ match Channel::<EnforcingSigner>::new_outbound(&&fee_estimator, &&keys_provider, node_id, &features, 10000000, 100000, 42, &config, 0, 42) {
Err(APIError::IncompatibleShutdownScript { script }) => {
assert_eq!(script.into_inner(), non_v0_segwit_shutdown_script.into_inner());
},
let node_a_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
let config = UserConfig::default();
- let node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&fee_est, &&keys_provider, node_a_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0).unwrap();
+ let node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&fee_est, &&keys_provider, node_a_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
// Now change the fee so we can check that the fee in the open_channel message is the
// same as the old fee.
// Create Node A's channel pointing to Node B's pubkey
let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
let config = UserConfig::default();
- let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0).unwrap();
+ let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
// Create Node B's channel by receiving Node A's open_channel message
// Make sure A's dust limit is as we expect.
let open_channel_msg = node_a_chan.get_open_channel(genesis_block(network).header.block_hash());
let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[7; 32]).unwrap());
- let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), &open_channel_msg, 7, &config, 0, &&logger).unwrap();
+ let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), &open_channel_msg, 7, &config, 0, &&logger, 42).unwrap();
// Node B --> Node A: accept channel, explicitly setting B's dust limit.
- let mut accept_channel_msg = node_b_chan.accept_inbound_channel();
+ let mut accept_channel_msg = node_b_chan.accept_inbound_channel(0);
accept_channel_msg.dust_limit_satoshis = 546;
node_a_chan.accept_channel(&accept_channel_msg, &config.peer_channel_config_limits, &InitFeatures::known()).unwrap();
node_a_chan.holder_dust_limit_satoshis = 1560;
let node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
let config = UserConfig::default();
- let mut chan = Channel::<EnforcingSigner>::new_outbound(&&fee_est, &&keys_provider, node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0).unwrap();
+ let mut chan = Channel::<EnforcingSigner>::new_outbound(&&fee_est, &&keys_provider, node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
let commitment_tx_fee_0_htlcs = Channel::<EnforcingSigner>::commit_tx_fee_msat(chan.feerate_per_kw, 0, chan.opt_anchors());
let commitment_tx_fee_1_htlc = Channel::<EnforcingSigner>::commit_tx_fee_msat(chan.feerate_per_kw, 1, chan.opt_anchors());
// Create Node A's channel pointing to Node B's pubkey
let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
let config = UserConfig::default();
- let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0).unwrap();
+ let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
// Create Node B's channel by receiving Node A's open_channel message
let open_channel_msg = node_a_chan.get_open_channel(chain_hash);
let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[7; 32]).unwrap());
- let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), &open_channel_msg, 7, &config, 0, &&logger).unwrap();
+ let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), &open_channel_msg, 7, &config, 0, &&logger, 42).unwrap();
// Node B --> Node A: accept channel
- let accept_channel_msg = node_b_chan.accept_inbound_channel();
+ let accept_channel_msg = node_b_chan.accept_inbound_channel(0);
node_a_chan.accept_channel(&accept_channel_msg, &config.peer_channel_config_limits, &InitFeatures::known()).unwrap();
// Node A --> Node B: funding created
// Create a channel.
let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
let config = UserConfig::default();
- let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0).unwrap();
+ let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
assert!(node_a_chan.counterparty_forwarding_info.is_none());
assert_eq!(node_a_chan.holder_htlc_minimum_msat, 1); // the default
assert!(node_a_chan.counterparty_forwarding_info().is_none());
}
}
+ #[cfg(not(feature = "grind_signatures"))]
#[test]
fn outbound_commitment_test() {
+ use bitcoin::util::bip143;
+ use bitcoin::consensus::encode::serialize;
+ use bitcoin::blockdata::transaction::SigHashType;
+ use bitcoin::hashes::hex::FromHex;
+ use bitcoin::hash_types::Txid;
+ use bitcoin::secp256k1::Message;
+ use chain::keysinterface::BaseSign;
+ use ln::PaymentPreimage;
+ use ln::channel::{HTLCOutputInCommitment ,TxCreationKeys};
+ use ln::chan_utils::{ChannelPublicKeys, HolderCommitmentTransaction, CounterpartyChannelTransactionParameters};
+ use util::logger::Logger;
+ use sync::Arc;
+
// Test vectors from BOLT 3 Appendices C and F (anchors):
let feeest = TestFeeEstimator{fee_est: 15000};
let logger : Arc<Logger> = Arc::new(test_utils::TestLogger::new());
let counterparty_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
let mut config = UserConfig::default();
config.channel_options.announced_channel = false;
- let mut chan = Channel::<InMemorySigner>::new_outbound(&&feeest, &&keys_provider, counterparty_node_id, &InitFeatures::known(), 10_000_000, 100000, 42, &config, 0).unwrap(); // Nothing uses their network key in this test
+ let mut chan = Channel::<InMemorySigner>::new_outbound(&&feeest, &&keys_provider, counterparty_node_id, &InitFeatures::known(), 10_000_000, 100000, 42, &config, 0, 42).unwrap(); // Nothing uses their network key in this test
chan.holder_dust_limit_satoshis = 546;
chan.counterparty_selected_channel_reserve_satoshis = Some(0); // Filled in in accept_channel
projects / rust-lightning / blobdiff