use bitcoin::network::constants::Network;
use bitcoin::network::serialize::BitcoinHash;
use bitcoin::util::hash::Sha256dHash;
-use bitcoin::util::uint::Uint256;
use secp256k1::key::{SecretKey,PublicKey};
use secp256k1::{Secp256k1,Message};
use secp256k1;
use chain::chaininterface::{BroadcasterInterface,ChainListener,ChainWatchInterface,FeeEstimator};
-use ln::channel::Channel;
+use chain::transaction::OutPoint;
+use ln::channel::{Channel, ChannelKeys};
use ln::channelmonitor::ManyChannelMonitor;
-use ln::router::Route;
+use ln::router::{Route,RouteHop};
use ln::msgs;
use ln::msgs::{HandleError,ChannelMessageHandler,MsgEncodable,MsgDecodable};
use util::{byte_utils, events, internal_traits, rng};
use util::sha2::Sha256;
+use util::chacha20poly1305rfc::ChaCha20;
+use util::logger::Logger;
+use util::errors::APIError;
+use crypto;
use crypto::mac::{Mac,MacResult};
use crypto::hmac::Hmac;
use crypto::digest::Digest;
use crypto::symmetriccipher::SynchronousStreamCipher;
-use crypto::chacha20::ChaCha20;
-use std::sync::{Mutex,MutexGuard,Arc};
+use std::{ptr, mem};
use std::collections::HashMap;
use std::collections::hash_map;
-use std::{ptr, mem};
+use std::sync::{Mutex,MutexGuard,Arc};
+use std::sync::atomic::{AtomicUsize, Ordering};
use std::time::{Instant,Duration};
mod channel_held_info {
},
OutboundRoute {
route: Route,
+ session_priv: SecretKey,
},
/// Used for channel rebalancing
CycledRoute {
source_short_channel_id: u64,
incoming_packet_shared_secret: SharedSecret,
route: Route,
+ session_priv: SecretKey,
}
}
const MIN_HTLC_RELAY_HOLDING_CELL_MILLIS: u32 = 50;
struct ChannelHolder {
- by_id: HashMap<Uint256, Channel>,
- short_to_id: HashMap<u64, Uint256>,
+ by_id: HashMap<[u8; 32], Channel>,
+ short_to_id: HashMap<u64, [u8; 32]>,
next_forward: Instant,
/// short channel id -> forward infos. Key of 0 means payments received
+ /// Note that while this is held in the same mutex as the channels themselves, no consistency
+ /// guarantees are made about there existing a channel with the short id here, nor the short
+ /// ids in the PendingForwardHTLCInfo!
forward_htlcs: HashMap<u64, Vec<PendingForwardHTLCInfo>>,
+ /// Note that while this is held in the same mutex as the channels themselves, no consistency
+ /// guarantees are made about the channels given here actually existing anymore by the time you
+ /// go to read them!
claimable_htlcs: HashMap<[u8; 32], PendingOutboundHTLC>,
}
struct MutChannelHolder<'a> {
- by_id: &'a mut HashMap<Uint256, Channel>,
- short_to_id: &'a mut HashMap<u64, Uint256>,
+ by_id: &'a mut HashMap<[u8; 32], Channel>,
+ short_to_id: &'a mut HashMap<u64, [u8; 32]>,
next_forward: &'a mut Instant,
- /// short channel id -> forward infos. Key of 0 means payments received
forward_htlcs: &'a mut HashMap<u64, Vec<PendingForwardHTLCInfo>>,
claimable_htlcs: &'a mut HashMap<[u8; 32], PendingOutboundHTLC>,
}
by_id: &mut self.by_id,
short_to_id: &mut self.short_to_id,
next_forward: &mut self.next_forward,
- /// short channel id -> forward infos. Key of 0 means payments received
forward_htlcs: &mut self.forward_htlcs,
claimable_htlcs: &mut self.claimable_htlcs,
}
}
}
+#[cfg(not(any(target_pointer_width = "32", target_pointer_width = "64")))]
+const ERR: () = "You need at least 32 bit pointers (well, usize, but we'll assume they're the same) for ChannelManager::latest_block_height";
+
/// Manager which keeps track of a number of channels and sends messages to the appropriate
/// channel, also tracking HTLC preimages and forwarding onion packets appropriately.
/// Implements ChannelMessageHandler, handling the multi-channel parts and passing things through
announce_channels_publicly: bool,
fee_proportional_millionths: u32,
- secp_ctx: Secp256k1,
+ latest_block_height: AtomicUsize,
+ secp_ctx: Secp256k1<secp256k1::All>,
channel_state: Mutex<ChannelHolder>,
our_network_key: SecretKey,
pending_events: Mutex<Vec<events::Event>>,
+
+ logger: Arc<Logger>,
}
const CLTV_EXPIRY_DELTA: u16 = 6 * 24 * 2; //TODO?
match $res {
Ok(key) => key,
//TODO: Make the err a parameter!
- Err(_) => return Err(HandleError{err: "Key error", msg: None})
+ Err(_) => return Err(HandleError{err: "Key error", action: None})
}
};
}
/// thereafter this is the txid of the funding transaction xor the funding transaction output).
/// Note that this means this value is *not* persistent - it can change once during the
/// lifetime of the channel.
- pub channel_id: Uint256,
+ pub channel_id: [u8; 32],
/// 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 main "logic hub" for all channel-related actions, and implements ChannelMessageHandler.
/// fee_proportional_millionths is an optional fee to charge any payments routed through us.
/// Non-proportional fees are fixed according to our risk using the provided fee estimator.
- /// panics if channel_value_satoshis is >= (1 << 24)!
- pub fn new(our_network_key: SecretKey, fee_proportional_millionths: u32, announce_channels_publicly: bool, network: Network, feeest: Arc<FeeEstimator>, monitor: Arc<ManyChannelMonitor>, chain_monitor: Arc<ChainWatchInterface>, tx_broadcaster: Arc<BroadcasterInterface>) -> Result<Arc<ChannelManager>, secp256k1::Error> {
+ /// panics if channel_value_satoshis is >= `MAX_FUNDING_SATOSHIS`!
+ pub fn new(our_network_key: SecretKey, fee_proportional_millionths: u32, announce_channels_publicly: bool, network: Network, feeest: Arc<FeeEstimator>, monitor: Arc<ManyChannelMonitor>, chain_monitor: Arc<ChainWatchInterface>, tx_broadcaster: Arc<BroadcasterInterface>
, logger: Arc<Logger>) -> Result<Arc<ChannelManager>, secp256k1::Error> {
let secp_ctx = Secp256k1::new();
let res = Arc::new(ChannelManager {
announce_channels_publicly,
fee_proportional_millionths,
+ latest_block_height: AtomicUsize::new(0), //TODO: Get an init value (generally need to replay recent chain on chain_monitor registration)
secp_ctx,
channel_state: Mutex::new(ChannelHolder{
our_network_key,
pending_events: Mutex::new(Vec::new()),
+
+ logger,
});
let weak_res = Arc::downgrade(&res);
res.chain_monitor.register_listener(weak_res);
Ok(res)
}
- pub fn create_channel(&self, their_network_key: PublicKey, channel_value_satoshis: u64, user_id: u64) -> Result<msgs::OpenChannel, HandleError> {
- let channel = Channel::new_outbound(&*self.fee_estimator, their_network_key, channel_value_satoshis, self.announce_channels_publicly, user_id);
+ /// Creates a new outbound channel to the given remote node and with the given value.
+ /// user_id will be provided back as user_channel_id in FundingGenerationReady and
+ /// FundingBroadcastSafe events to allow tracking of which events correspond with which
+ /// create_channel call. Note that user_channel_id defaults to 0 for inbound channels, so you
+ /// may wish to avoid using 0 for user_id here.
+ /// If successful, will generate a SendOpenChannel event, so you should probably poll
+ /// PeerManager::process_events afterwards.
+ /// Raises APIError::APIMisuseError when channel_value_satoshis > 2**24 or push_msat being greater than channel_value_satoshis * 1k
+ pub fn create_channel(&self, their_network_key: PublicKey, channel_value_satoshis: u64, push_msat: u64, user_id: u64) -> Result<(), APIError> {
+ let chan_keys = if cfg!(feature = "fuzztarget") {
+ ChannelKeys {
+ funding_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(),
+ revocation_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(),
+ payment_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(),
+ delayed_payment_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(),
+ htlc_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(),
+ channel_close_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(),
+ channel_monitor_claim_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(),
+ commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+ }
+ } else {
+ let mut key_seed = [0u8; 32];
+ rng::fill_bytes(&mut key_seed);
+ match ChannelKeys::new_from_seed(&key_seed) {
+ Ok(key) => key,
+ Err(_) => panic!("RNG is busted!")
+ }
+ };
+
+ let channel = Channel::new_outbound(&*self.fee_estimator, chan_keys, their_network_key, channel_value_satoshis, push_msat, self.announce_channels_publicly, user_id, Arc::clone(&self.logger))?;
let res = channel.get_open_channel(self.genesis_hash.clone(), &*self.fee_estimator)?;
let mut channel_state = self.channel_state.lock().unwrap();
match channel_state.by_id.insert(channel.channel_id(), channel) {
Some(_) => panic!("RNG is bad???"),
- None => Ok(res)
+ None => {}
}
+
+ let mut events = self.pending_events.lock().unwrap();
+ events.push(events::Event::SendOpenChannel {
+ node_id: their_network_key,
+ msg: res,
+ });
+ Ok(())
}
/// Gets the list of open channels, in random order. See ChannelDetail field documentation for
res
}
+ /// Gets the list of usable channels, in random order. Useful as an argument to
+ /// Router::get_route to ensure non-announced channels are used.
+ pub fn list_usable_channels(&self) -> Vec<ChannelDetails> {
+ let channel_state = self.channel_state.lock().unwrap();
+ let mut res = Vec::with_capacity(channel_state.by_id.len());
+ for (channel_id, channel) in channel_state.by_id.iter() {
+ if channel.is_usable() {
+ res.push(ChannelDetails {
+ channel_id: (*channel_id).clone(),
+ short_channel_id: channel.get_short_channel_id(),
+ remote_network_id: channel.get_their_node_id(),
+ channel_value_satoshis: channel.get_value_satoshis(),
+ user_id: channel.get_user_id(),
+ });
+ }
+ }
+ res
+ }
+
/// Begins the process of closing a channel. After this call (plus some timeout), no new HTLCs
/// will be accepted on the given channel, and after additional timeout/the closing of all
/// pending HTLCs, the channel will be closed on chain.
- pub fn close_channel(&self, channel_id: &Uint256) -> Result<msgs::Shutdown, HandleError> {
- let res = {
- let mut channel_state = self.channel_state.lock().unwrap();
+ /// May generate a SendShutdown event on success, which should be relayed.
+ pub fn close_channel(&self, channel_id: &[u8; 32]) -> Result<(), HandleError> {
+ let (res, node_id, chan_option) = {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_state_lock.borrow_parts();
match channel_state.by_id.entry(channel_id.clone()) {
hash_map::Entry::Occupied(mut chan_entry) => {
let res = chan_entry.get_mut().get_shutdown()?;
if chan_entry.get().is_shutdown() {
- chan_entry.remove_entry();
- }
- res
+ if let Some(short_id) = chan_entry.get().get_short_channel_id() {
+ channel_state.short_to_id.remove(&short_id);
+ }
+ (res, chan_entry.get().get_their_node_id(), Some(chan_entry.remove_entry().1))
+ } else { (res, chan_entry.get().get_their_node_id(), None) }
},
- hash_map::Entry::Vacant(_) => return Err(HandleError{err: "No such channel", msg: None})
+ hash_map::Entry::Vacant(_) => return Err(HandleError{err: "No such channel", action: None})
}
};
for payment_hash in res.1 {
// unknown_next_peer...I dunno who that is anymore....
self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), &payment_hash, HTLCFailReason::Reason { failure_code: 0x4000 | 10, data: Vec::new() });
}
- Ok(res.0)
+ let chan_update = if let Some(chan) = chan_option {
+ if let Ok(update) = self.get_channel_update(&chan) {
+ Some(update)
+ } else { None }
+ } else { None };
+
+ let mut events = self.pending_events.lock().unwrap();
+ if let Some(update) = chan_update {
+ events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ events.push(events::Event::SendShutdown {
+ node_id,
+ msg: res.0
+ });
+
+ Ok(())
+ }
+
+ #[inline]
+ fn finish_force_close_channel(&self, shutdown_res: (Vec<Transaction>, Vec<[u8; 32]>)) {
+ let (local_txn, failed_htlcs) = shutdown_res;
+ for payment_hash in failed_htlcs {
+ // unknown_next_peer...I dunno who that is anymore....
+ self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), &payment_hash, HTLCFailReason::Reason { failure_code: 0x4000 | 10, data: Vec::new() });
+ }
+ for tx in local_txn {
+ self.tx_broadcaster.broadcast_transaction(&tx);
+ }
+ //TODO: We need to have a way where outbound HTLC claims can result in us claiming the
+ //now-on-chain HTLC output for ourselves (and, thereafter, passing the HTLC backwards).
+ //TODO: We need to handle monitoring of pending offered HTLCs which just hit the chain and
+ //may be claimed, resulting in us claiming the inbound HTLCs (and back-failing after
+ //timeouts are hit and our claims confirm).
+ }
+
+ /// Force closes a channel, immediately broadcasting the latest local commitment transaction to
+ /// the chain and rejecting new HTLCs on the given channel.
+ pub fn force_close_channel(&self, channel_id: &[u8; 32]) {
+ let mut chan = {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_state_lock.borrow_parts();
+ if let Some(chan) = channel_state.by_id.remove(channel_id) {
+ if let Some(short_id) = chan.get_short_channel_id() {
+ channel_state.short_to_id.remove(&short_id);
+ }
+ chan
+ } else {
+ return;
+ }
+ };
+ self.finish_force_close_channel(chan.force_shutdown());
+ let mut events = self.pending_events.lock().unwrap();
+ if let Ok(update) = self.get_channel_update(&chan) {
+ events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ }
+
+ /// Force close all channels, immediately broadcasting the latest local commitment transaction
+ /// for each to the chain and rejecting new HTLCs on each.
+ pub fn force_close_all_channels(&self) {
+ for chan in self.list_channels() {
+ self.force_close_channel(&chan.channel_id);
+ }
}
#[inline]
res
}
- fn construct_onion_keys(secp_ctx: &Secp256k1, route: &Route, session_priv: &SecretKey) -> Result<Vec<OnionKeys>, HandleError> {
- let mut res = Vec::with_capacity(route.hops.len());
+ // can only fail if an intermediary hop has an invalid public key or session_priv is invalid
+ #[inline]
+ fn construct_onion_keys_callback<T: secp256k1::Signing, FType: FnMut(SharedSecret, [u8; 32], PublicKey, &RouteHop)> (secp_ctx: &Secp256k1<T>, route: &Route, session_priv: &SecretKey, mut callback: FType) -> Result<(), HandleError> {
let mut blinded_priv = session_priv.clone();
- let mut blinded_pub = secp_call!(PublicKey::from_secret_key(secp_ctx, &blinded_priv));
+ let mut blinded_pub = PublicKey::from_secret_key(secp_ctx, &blinded_priv);
let mut first_iteration = true;
for hop in route.hops.iter() {
sha.result(&mut blinding_factor);
if first_iteration {
- blinded_pub = secp_call!(PublicKey::from_secret_key(secp_ctx, &blinded_priv));
+ blinded_pub = PublicKey::from_secret_key(secp_ctx, &blinded_priv);
first_iteration = false;
}
let ephemeral_pubkey = blinded_pub;
secp_call!(blinded_priv.mul_assign(secp_ctx, &secp_call!(SecretKey::from_slice(secp_ctx, &blinding_factor))));
- blinded_pub = secp_call!(PublicKey::from_secret_key(secp_ctx, &blinded_priv));
+ blinded_pub = PublicKey::from_secret_key(secp_ctx, &blinded_priv);
+
+ callback(shared_secret, blinding_factor, ephemeral_pubkey, hop);
+ }
+
+ Ok(())
+ }
+ // can only fail if an intermediary hop has an invalid public key or session_priv is invalid
+ fn construct_onion_keys<T: secp256k1::Signing>(secp_ctx: &Secp256k1<T>, route: &Route, session_priv: &SecretKey) -> Result<Vec<OnionKeys>, HandleError> {
+ let mut res = Vec::with_capacity(route.hops.len());
+
+ Self::construct_onion_keys_callback(secp_ctx, route, session_priv, |shared_secret, _blinding_factor, ephemeral_pubkey, _| {
let (rho, mu) = ChannelManager::gen_rho_mu_from_shared_secret(&shared_secret);
res.push(OnionKeys {
#[cfg(test)]
- shared_secret: shared_secret,
+ shared_secret,
#[cfg(test)]
- blinding_factor: blinding_factor,
- ephemeral_pubkey: ephemeral_pubkey,
- rho: rho,
- mu: mu,
+ blinding_factor: _blinding_factor,
+ ephemeral_pubkey,
+ rho,
+ mu,
});
- }
+ })?;
Ok(res)
}
/// returns the hop data, as well as the first-hop value_msat and CLTV value we should send.
- fn build_onion_payloads(route: &Route) -> Result<(Vec<msgs::OnionHopData>, u64, u32), HandleError> {
+ fn build_onion_payloads(route: &Route, starting_htlc_offset: u32) -> Result<(Vec<msgs::OnionHopData>, u64, u32), HandleError> {
let mut cur_value_msat = 0u64;
- let mut cur_cltv = 0u32;
+ let mut cur_cltv = starting_htlc_offset;
let mut last_short_channel_id = 0;
let mut res: Vec<msgs::OnionHopData> = Vec::with_capacity(route.hops.len());
internal_traits::test_no_dealloc::<msgs::OnionHopData>(None);
// exactly as it should be (and the next hop isn't trying to probe to find out if we're
// the intended recipient).
let value_msat = if cur_value_msat == 0 { hop.fee_msat } else { cur_value_msat };
- let cltv = if cur_cltv == 0 { hop.cltv_expiry_delta } else { cur_cltv };
+ let cltv = if cur_cltv == starting_htlc_offset { hop.cltv_expiry_delta + starting_htlc_offset } else { cur_cltv };
res[idx] = msgs::OnionHopData {
realm: 0,
data: msgs::OnionRealm0HopData {
};
cur_value_msat += hop.fee_msat;
if cur_value_msat >= 21000000 * 100000000 * 1000 {
- return Err(HandleError{err: "Channel fees overflowed?!", msg: None});
+ return Err(HandleError{err: "Channel fees overflowed?!", action: None});
}
cur_cltv += hop.cltv_expiry_delta as u32;
if cur_cltv >= 500000000 {
- return Err(HandleError{err: "Channel CLTV overflowed?!", msg: None});
+ return Err(HandleError{err: "Channel CLTV overflowed?!", action: None});
}
last_short_channel_id = hop.short_channel_id;
}
}
const ZERO:[u8; 21*65] = [0; 21*65];
- fn construct_onion_packet(mut payloads: Vec<msgs::OnionHopData>, onion_keys: Vec<OnionKeys>, associated_data: Vec<u8>) -> Result<msgs::OnionPacket, HandleError> {
+ fn construct_onion_packet(mut payloads: Vec<msgs::OnionHopData>, onion_keys: Vec<OnionKeys>, associated_data: &[u8; 32]) -> Result<msgs::OnionPacket, HandleError> {
let mut buf = Vec::with_capacity(21*65);
buf.resize(21*65, 0);
}
/// only fails if the channel does not yet have an assigned short_id
- fn get_channel_update(&self, chan: &mut Channel) -> Result<msgs::ChannelUpdate, HandleError> {
+ fn get_channel_update(&self, chan: &Channel) -> Result<msgs::ChannelUpdate, HandleError> {
let short_channel_id = match chan.get_short_channel_id() {
- None => return Err(HandleError{err: "Channel not yet established", msg: None}),
+ None => return Err(HandleError{err: "Channel not yet established", action: None}),
Some(id) => id,
};
- let were_node_one = PublicKey::from_secret_key(&self.secp_ctx, &self.our_network_key).unwrap().serialize()[..] < chan.get_their_node_id().serialize()[..];
+ let were_node_one = PublicKey::from_secret_key(&self.secp_ctx, &self.our_network_key).serialize()[..] < chan.get_their_node_id().serialize()[..];
let unsigned = msgs::UnsignedChannelUpdate {
chain_hash: self.genesis_hash,
};
let msg_hash = Sha256dHash::from_data(&unsigned.encode()[..]);
- let sig = self.secp_ctx.sign(&Message::from_slice(&msg_hash[..]).unwrap(), &self.our_network_key).unwrap(); //TODO Can we unwrap here?
+ let sig = self.secp_ctx.sign(&Message::from_slice(&msg_hash[..]).unwrap(), &self.our_network_key); //TODO Can we unwrap here?
Ok(msgs::ChannelUpdate {
signature: sig,
})
}
- /// Sends a payment along a given route, returning the UpdateAddHTLC message to give to the
- /// first hop in route. Value parameters are provided via the last hop in route, see
- /// documentation for RouteHop fields for more info.
+ /// Sends a payment along a given route.
+ /// Value parameters are provided via the last hop in route, see documentation for RouteHop
+ /// fields for more info.
+ /// Note that if the payment_hash already exists elsewhere (eg you're sending a duplicative
+ /// payment), we don't do anything to stop you! We always try to ensure that if the provided
+ /// next hop knows the preimage to payment_hash they can claim an additional amount as
+ /// specified in the last hop in the route! Thus, you should probably do your own
+ /// payment_preimage tracking (which you should already be doing as they represent "proof of
+ /// payment") and prevent double-sends yourself.
/// See-also docs on Channel::send_htlc_and_commit.
- pub fn send_payment(&self, route: Route, payment_hash: [u8; 32]) -> Result<Option<(msgs::UpdateAddHTLC, msgs::CommitmentSigned)>, HandleError> {
+ /// May generate a SendHTLCs event on success, which should be relayed.
+ pub fn send_payment(&self, route: Route, payment_hash: [u8; 32]) -> Result<(), HandleError> {
if route.hops.len() < 1 || route.hops.len() > 20 {
- return Err(HandleError{err: "Route didn't go anywhere/had bogus size", msg: None});
+ return Err(HandleError{err: "Route didn't go anywhere/had bogus size", action: None});
}
let our_node_id = self.get_our_node_id();
for (idx, hop) in route.hops.iter().enumerate() {
if idx != route.hops.len() - 1 && hop.pubkey == our_node_id {
- return Err(HandleError{err: "Route went through us but wasn't a simple rebalance loop to us", msg: None});
+ return Err(HandleError{err: "Route went through us but wasn't a simple rebalance loop to us", action: None});
}
}
session_key
}));
- let associated_data = Vec::new(); //TODO: What to put here?
+ let cur_height = self.latest_block_height.load(Ordering::Acquire) as u32 + 1;
let onion_keys = ChannelManager::construct_onion_keys(&self.secp_ctx, &route, &session_priv)?;
- let (onion_payloads, htlc_msat, htlc_cltv) = ChannelManager::build_onion_payloads(&route)?;
- let onion_packet = ChannelManager::construct_onion_packet(onion_payloads, onion_keys, associated_data)?;
+ let (onion_payloads, htlc_msat, htlc_cltv) = ChannelManager::build_onion_payloads(&route, cur_height)?;
+ let onion_packet = ChannelManager::construct_onion_packet(onion_payloads, onion_keys, &payment_hash)?;
- let mut channel_state = self.channel_state.lock().unwrap();
- let id = match channel_state.short_to_id.get(&route.hops.first().unwrap().short_channel_id) {
- None => return Err(HandleError{err: "No channel available with first hop!", msg: None}),
- Some(id) => id.clone()
- };
- let res = {
- let chan = channel_state.by_id.get_mut(&id).unwrap();
- if chan.get_their_node_id() != route.hops.first().unwrap().pubkey {
- return Err(HandleError{err: "Node ID mismatch on first hop!", msg: None});
+ let (first_hop_node_id, (update_add, commitment_signed, chan_monitor)) = {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_state_lock.borrow_parts();
+
+ let id = match channel_state.short_to_id.get(&route.hops.first().unwrap().short_channel_id) {
+ None => return Err(HandleError{err: "No channel available with first hop!", action: None}),
+ Some(id) => id.clone()
+ };
+
+ let claimable_htlc_entry = channel_state.claimable_htlcs.entry(payment_hash.clone());
+ if let hash_map::Entry::Occupied(_) = claimable_htlc_entry {
+ return Err(HandleError{err: "Already had pending HTLC with the same payment_hash", action: None});
+ }
+
+ let res = {
+ let chan = channel_state.by_id.get_mut(&id).unwrap();
+ if chan.get_their_node_id() != route.hops.first().unwrap().pubkey {
+ return Err(HandleError{err: "Node ID mismatch on first hop!", action: None});
+ }
+ chan.send_htlc_and_commit(htlc_msat, payment_hash, htlc_cltv, onion_packet)?
+ };
+
+ let first_hop_node_id = route.hops.first().unwrap().pubkey;
+
+ claimable_htlc_entry.or_insert(PendingOutboundHTLC::OutboundRoute {
+ route,
+ session_priv,
+ });
+
+ match res {
+ Some(msgs) => (first_hop_node_id, msgs),
+ None => return Ok(()),
}
- chan.send_htlc_and_commit(htlc_msat, payment_hash.clone(), htlc_cltv, onion_packet)?
};
- if channel_state.claimable_htlcs.insert(payment_hash, PendingOutboundHTLC::OutboundRoute {
- route: route,
- }).is_some() {
- // TODO: We need to track these better, we're not generating these, so a
- // third-party might make this happen:
- panic!("payment_hash was repeated! Don't let this happen");
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!(); // maybe remove from claimable_htlcs?
}
- Ok(res)
+ let mut events = self.pending_events.lock().unwrap();
+ events.push(events::Event::SendHTLCs {
+ node_id: first_hop_node_id,
+ msgs: vec![update_add],
+ commitment_msg: commitment_signed,
+ });
+ Ok(())
}
/// Call this upon creation of a funding transaction for the given channel.
/// Panics if a funding transaction has already been provided for this channel.
- pub fn funding_transaction_generated(&self, temporary_channel_id: &Uint256, funding_txo: (Sha256dHash, u16)) {
- let (chan, msg) = {
+ /// May panic if the funding_txo is duplicative with some other channel (note that this should
+ /// be trivially prevented by using unique funding transaction keys per-channel).
+ pub fn funding_transaction_generated(&self, temporary_channel_id: &[u8; 32], funding_txo: OutPoint) {
+
+ macro_rules! add_pending_event {
+ ($event: expr) => {
+ {
+ let mut pending_events = self.pending_events.lock().unwrap();
+ pending_events.push($event);
+ }
+ }
+ }
+
+ let (chan, msg, chan_monitor) = {
let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.remove(&temporary_channel_id) {
+ match channel_state.by_id.remove(temporary_channel_id) {
Some(mut chan) => {
- match chan.get_outbound_funding_created(funding_txo.0, funding_txo.1) {
+ match chan.get_outbound_funding_created(funding_txo) {
Ok(funding_msg) => {
- (chan, funding_msg)
+ (chan, funding_msg.0, funding_msg.1)
},
- Err(_e) => {
- //TODO: Push e to pendingevents
+ Err(e) => {
+ log_error!(self, "Got bad signatures: {}!", e.err);
+ mem::drop(channel_state);
+ add_pending_event!(events::Event::HandleError {
+ node_id: chan.get_their_node_id(),
+ action: e.action,
+ });
return;
- }
+ },
}
},
None => return
}
}; // Release channel lock for install_watch_outpoint call,
- let chan_monitor = chan.channel_monitor();
- match self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
- Ok(()) => {},
- Err(_e) => {
- //TODO: Push e to pendingevents?
- return;
- }
- };
-
- {
- let mut pending_events = self.pending_events.lock().unwrap();
- pending_events.push(events::Event::SendFundingCreated {
- node_id: chan.get_their_node_id(),
- msg: msg,
- });
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!(); // maybe remove from claimable_htlcs?
}
+ add_pending_event!(events::Event::SendFundingCreated {
+ node_id: chan.get_their_node_id(),
+ msg: msg,
+ });
let mut channel_state = self.channel_state.lock().unwrap();
- channel_state.by_id.insert(chan.channel_id(), chan);
+ match channel_state.by_id.entry(chan.channel_id()) {
+ hash_map::Entry::Occupied(_) => {
+ panic!("Generated duplicate funding txid?");
+ },
+ hash_map::Entry::Vacant(e) => {
+ e.insert(chan);
+ }
+ }
}
fn get_announcement_sigs(&self, chan: &Channel) -> Result<Option<msgs::AnnouncementSignatures>, HandleError> {
- if !chan.is_usable() { return Ok(None) }
+ if !chan.is_usable() || !chan.should_announce() { return Ok(None) }
let (announcement, our_bitcoin_sig) = chan.get_channel_announcement(self.get_our_node_id(), self.genesis_hash.clone())?;
let msghash = Message::from_slice(&Sha256dHash::from_data(&announcement.encode()[..])[..]).unwrap();
- let our_node_sig = secp_call!(self.secp_ctx.sign(&msghash, &self.our_network_key));
+ let our_node_sig = self.secp_ctx.sign(&msghash, &self.our_network_key);
Ok(Some(msgs::AnnouncementSignatures {
channel_id: chan.channel_id(),
}))
}
- pub fn process_pending_htlc_forward(&self) {
+ /// Processes HTLCs which are pending waiting on random forward delay.
+ /// Should only really ever be called in response to an PendingHTLCsForwardable event.
+ /// Will likely generate further events.
+ pub fn process_pending_htlc_forwards(&self) {
let mut new_events = Vec::new();
let mut failed_forwards = Vec::new();
{
for forward_info in pending_forwards {
failed_forwards.push((forward_info.payment_hash, 0x4000 | 10, None));
}
- // TODO: Send a failure packet back on each pending_forward
continue;
}
};
match forward_chan.send_htlc(forward_info.amt_to_forward, forward_info.payment_hash, forward_info.outgoing_cltv_value, forward_info.onion_packet.unwrap()) {
Err(_e) => {
let chan_update = self.get_channel_update(forward_chan).unwrap();
- failed_forwards.push((forward_info.payment_hash, 0x4000 | 7, Some(chan_update)));
+ failed_forwards.push((forward_info.payment_hash, 0x1000 | 7, Some(chan_update)));
continue;
},
Ok(update_add) => {
}
if !add_htlc_msgs.is_empty() {
- let commitment_msg = match forward_chan.send_commitment() {
- Ok(msg) => msg,
- Err(_) => {
+ let (commitment_msg, monitor) = match forward_chan.send_commitment() {
+ Ok(res) => res,
+ Err(_e) => {
//TODO: Handle...this is bad!
continue;
},
};
- new_events.push(events::Event::SendHTLCs {
+ new_events.push((Some(monitor), events::Event::SendHTLCs {
node_id: forward_chan.get_their_node_id(),
msgs: add_htlc_msgs,
commitment_msg: commitment_msg,
- });
+ }));
}
} else {
for forward_info in pending_forwards {
- new_events.push(events::Event::PaymentReceived {
+ new_events.push((None, events::Event::PaymentReceived {
payment_hash: forward_info.payment_hash,
amt: forward_info.amt_to_forward,
- });
+ }));
}
}
}
for failed_forward in failed_forwards.drain(..) {
match failed_forward.2 {
None => self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), &failed_forward.0, HTLCFailReason::Reason { failure_code: failed_forward.1, data: Vec::new() }),
- Some(chan_update) => self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), &failed_forward.0, HTLCFailReason::Reason { failure_code: failed_forward.1, data: chan_update.encode() }),
+ Some(chan_update) => self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), &failed_forward.0, HTLCFailReason::Reason { failure_code: failed_forward.1, data: chan_update.encode_with_len() }),
};
}
if new_events.is_empty() { return }
+ new_events.retain(|event| {
+ if let &Some(ref monitor) = &event.0 {
+ if let Err(_e) = self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor.clone()) {
+ unimplemented!();// but def dont push the event...
+ }
+ }
+ true
+ });
+
let mut events = self.pending_events.lock().unwrap();
events.reserve(new_events.len());
for event in new_events.drain(..) {
- events.push(event);
+ events.push(event.1);
}
}
self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), payment_hash, HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: Vec::new() })
}
+ /// Fails an HTLC backwards to the sender of it to us.
+ /// Note that while we take a channel_state lock as input, we do *not* assume consistency here.
+ /// There are several callsites that do stupid things like loop over a list of payment_hashes
+ /// to fail and take the channel_state lock for each iteration (as we take ownership and may
+ /// drop it). In other words, no assumptions are made that entries in claimable_htlcs point to
+ /// still-available channels.
fn fail_htlc_backwards_internal(&self, mut channel_state: MutexGuard<ChannelHolder>, payment_hash: &[u8; 32], onion_error: HTLCFailReason) -> bool {
let mut pending_htlc = {
match channel_state.claimable_htlcs.remove(payment_hash) {
};
match pending_htlc {
- PendingOutboundHTLC::CycledRoute { source_short_channel_id, incoming_packet_shared_secret, .. } => {
+ PendingOutboundHTLC::CycledRoute { source_short_channel_id, incoming_packet_shared_secret, route, session_priv } => {
+ channel_state.claimable_htlcs.insert(payment_hash.clone(), PendingOutboundHTLC::OutboundRoute {
+ route,
+ session_priv,
+ });
pending_htlc = PendingOutboundHTLC::IntermediaryHopData { source_short_channel_id, incoming_packet_shared_secret };
},
_ => {}
}
match pending_htlc {
- PendingOutboundHTLC::CycledRoute { .. } => { panic!("WAT"); },
+ PendingOutboundHTLC::CycledRoute { .. } => unreachable!(),
PendingOutboundHTLC::OutboundRoute { .. } => {
- //TODO: DECRYPT route from OutboundRoute
mem::drop(channel_state);
+
let mut pending_events = self.pending_events.lock().unwrap();
pending_events.push(events::Event::PaymentFailed {
payment_hash: payment_hash.clone()
};
match fail_msgs {
- Some(msgs) => {
+ Some((msg, commitment_msg, chan_monitor)) => {
mem::drop(channel_state);
+
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!();// but def dont push the event...
+ }
+
let mut pending_events = self.pending_events.lock().unwrap();
+ //TODO: replace by HandleError ? UpdateFailHTLC in handle_update_add_htlc need also to build a CommitmentSigned
pending_events.push(events::Event::SendFailHTLC {
node_id,
- msg: msgs.0,
- commitment_msg: msgs.1,
+ msg: msg,
+ commitment_msg: commitment_msg,
});
},
None => {},
pub fn claim_funds(&self, payment_preimage: [u8; 32]) -> bool {
self.claim_funds_internal(payment_preimage, true)
}
- pub fn claim_funds_internal(&self, payment_preimage: [u8; 32], from_user: bool) -> bool {
+ fn claim_funds_internal(&self, payment_preimage: [u8; 32], from_user: bool) -> bool {
let mut sha = Sha256::new();
sha.input(&payment_preimage);
let mut payment_hash = [0; 32];
};
match pending_htlc {
- PendingOutboundHTLC::CycledRoute { source_short_channel_id, incoming_packet_shared_secret, route } => {
+ PendingOutboundHTLC::CycledRoute { source_short_channel_id, incoming_packet_shared_secret, route, session_priv } => {
if from_user { // This was the end hop back to us
pending_htlc = PendingOutboundHTLC::IntermediaryHopData { source_short_channel_id, incoming_packet_shared_secret };
- channel_state.claimable_htlcs.insert(payment_hash, PendingOutboundHTLC::OutboundRoute { route });
+ channel_state.claimable_htlcs.insert(payment_hash, PendingOutboundHTLC::OutboundRoute { route, session_priv });
} else { // This came from the first upstream node
// Bank error in our favor! Maybe we should tell the user this somehow???
- pending_htlc = PendingOutboundHTLC::OutboundRoute { route };
+ pending_htlc = PendingOutboundHTLC::OutboundRoute { route, session_priv };
channel_state.claimable_htlcs.insert(payment_hash, PendingOutboundHTLC::IntermediaryHopData { source_short_channel_id, incoming_packet_shared_secret });
}
},
}
match pending_htlc {
- PendingOutboundHTLC::CycledRoute { .. } => { panic!("WAT"); },
+ PendingOutboundHTLC::CycledRoute { .. } => unreachable!(),
PendingOutboundHTLC::OutboundRoute { .. } => {
if from_user {
panic!("Called claim_funds with a preimage for an outgoing payment. There is nothing we can do with this, and something is seriously wrong if you knew this...");
false
},
PendingOutboundHTLC::IntermediaryHopData { source_short_channel_id, .. } => {
- let (node_id, fulfill_msgs, monitor) = {
+ let (node_id, fulfill_msgs) = {
let chan_id = match channel_state.short_to_id.get(&source_short_channel_id) {
Some(chan_id) => chan_id.clone(),
- None => return false
+ None => {
+ // TODO: There is probably a channel manager somewhere that needs to
+ // learn the preimage as the channel already hit the chain and that's
+ // why its missing.
+ return false
+ }
};
let chan = channel_state.by_id.get_mut(&chan_id).unwrap();
match chan.get_update_fulfill_htlc_and_commit(payment_preimage) {
- Ok(msg) => (chan.get_their_node_id(), msg, if from_user { Some(chan.channel_monitor()) } else { None }),
+ Ok(msg) => (chan.get_their_node_id(), msg),
Err(_e) => {
+ // TODO: There is probably a channel manager somewhere that needs to
+ // learn the preimage as the channel may be about to hit the chain.
//TODO: Do something with e?
return false;
},
};
mem::drop(channel_state);
- match fulfill_msgs {
- Some(msgs) => {
- let mut pending_events = self.pending_events.lock().unwrap();
- pending_events.push(events::Event::SendFulfillHTLC {
- node_id: node_id,
- msg: msgs.0,
- commitment_msg: msgs.1,
- });
- },
- None => {},
+ if let Some(chan_monitor) = fulfill_msgs.1 {
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!();// but def dont push the event...
+ }
}
- //TODO: It may not be possible to handle add_update_monitor fails gracefully, maybe
- //it should return no Err? Sadly, panic!()s instead doesn't help much :(
- if from_user {
- match self.monitor.add_update_monitor(monitor.as_ref().unwrap().get_funding_txo().unwrap(), monitor.unwrap()) {
- Ok(()) => true,
- Err(_) => true,
- }
- } else { true }
+ if let Some((msg, commitment_msg)) = fulfill_msgs.0 {
+ let mut pending_events = self.pending_events.lock().unwrap();
+ pending_events.push(events::Event::SendFulfillHTLC {
+ node_id: node_id,
+ msg,
+ commitment_msg,
+ });
+ }
+ true
},
}
}
/// Gets the node_id held by this ChannelManager
pub fn get_our_node_id(&self) -> PublicKey {
- PublicKey::from_secret_key(&self.secp_ctx, &self.our_network_key).unwrap()
+ PublicKey::from_secret_key(&self.secp_ctx, &self.our_network_key)
+ }
+
+ /// Used to restore channels to normal operation after a
+ /// ChannelMonitorUpdateErr::TemporaryFailure was returned from a channel monitor update
+ /// operation.
+ pub fn test_restore_channel_monitor(&self) {
+ unimplemented!();
}
}
impl ChainListener for ChannelManager {
fn block_connected(&self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], indexes_of_txn_matched: &[u32]) {
- let mut new_funding_locked_messages = Vec::new();
+ let mut new_events = Vec::new();
+ let mut failed_channels = Vec::new();
{
- let mut channel_state = self.channel_state.lock().unwrap();
- let mut short_to_ids_to_insert = Vec::new();
- for channel in channel_state.by_id.values_mut() {
- match channel.block_connected(header, height, txn_matched, indexes_of_txn_matched) {
- Some(funding_locked) => {
- let announcement_sigs = match self.get_announcement_sigs(channel) {
- Ok(res) => res,
- Err(_e) => {
- //TODO: push e on events and blow up the channel (it has bad keys)
- continue;
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
+ let short_to_id = channel_state.short_to_id;
+ channel_state.by_id.retain(|_, channel| {
+ let chan_res = channel.block_connected(header, height, txn_matched, indexes_of_txn_matched);
+ if let Ok(Some(funding_locked)) = chan_res {
+ let announcement_sigs = match self.get_announcement_sigs(channel) {
+ Ok(res) => res,
+ Err(e) => {
+ log_error!(self, "Got error handling message: {}!", e.err);
+ //TODO: push e on events and blow up the channel (it has bad keys)
+ return true;
+ }
+ };
+ new_events.push(events::Event::SendFundingLocked {
+ node_id: channel.get_their_node_id(),
+ msg: funding_locked,
+ announcement_sigs: announcement_sigs
+ });
+ short_to_id.insert(channel.get_short_channel_id().unwrap(), channel.channel_id());
+ } else if let Err(e) = chan_res {
+ new_events.push(events::Event::HandleError {
+ node_id: channel.get_their_node_id(),
+ action: e.action,
+ });
+ if channel.is_shutdown() {
+ return false;
+ }
+ }
+ if let Some(funding_txo) = channel.get_funding_txo() {
+ for tx in txn_matched {
+ for inp in tx.input.iter() {
+ if inp.previous_output == funding_txo.into_bitcoin_outpoint() {
+ if let Some(short_id) = channel.get_short_channel_id() {
+ short_to_id.remove(&short_id);
+ }
+ // It looks like our counterparty went on-chain. We go ahead and
+ // broadcast our latest local state as well here, just in case its
+ // some kind of SPV attack, though we expect these to be dropped.
+ failed_channels.push(channel.force_shutdown());
+ if let Ok(update) = self.get_channel_update(&channel) {
+ new_events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ return false;
}
- };
- new_funding_locked_messages.push(events::Event::SendFundingLocked {
- node_id: channel.get_their_node_id(),
- msg: funding_locked,
- announcement_sigs: announcement_sigs
+ }
+ }
+ }
+ if channel.is_funding_initiated() && channel.channel_monitor().would_broadcast_at_height(height) {
+ if let Some(short_id) = channel.get_short_channel_id() {
+ short_to_id.remove(&short_id);
+ }
+ failed_channels.push(channel.force_shutdown());
+ // If would_broadcast_at_height() is true, the channel_monitor will broadcast
+ // the latest local tx for us, so we should skip that here (it doesn't really
+ // hurt anything, but does make tests a bit simpler).
+ failed_channels.last_mut().unwrap().0 = Vec::new();
+ if let Ok(update) = self.get_channel_update(&channel) {
+ new_events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
});
- short_to_ids_to_insert.push((channel.get_short_channel_id().unwrap(), channel.channel_id()));
- },
- None => {}
+ }
+ return false;
}
- //TODO: Check if channel was closed (or disabled) here
- }
- for to_insert in short_to_ids_to_insert {
- channel_state.short_to_id.insert(to_insert.0, to_insert.1);
- }
+ true
+ });
+ }
+ for failure in failed_channels.drain(..) {
+ self.finish_force_close_channel(failure);
}
let mut pending_events = self.pending_events.lock().unwrap();
- for funding_locked in new_funding_locked_messages.drain(..) {
+ for funding_locked in new_events.drain(..) {
pending_events.push(funding_locked);
}
+ self.latest_block_height.store(height as usize, Ordering::Release);
}
+ /// We force-close the channel without letting our counterparty participate in the shutdown
fn block_disconnected(&self, header: &BlockHeader) {
- let mut channel_state = self.channel_state.lock().unwrap();
- for channel in channel_state.by_id.values_mut() {
- if channel.block_disconnected(header) {
- //TODO Close channel here
+ let mut new_events = Vec::new();
+ let mut failed_channels = Vec::new();
+ {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
+ let short_to_id = channel_state.short_to_id;
+ channel_state.by_id.retain(|_, v| {
+ if v.block_disconnected(header) {
+ if let Some(short_id) = v.get_short_channel_id() {
+ short_to_id.remove(&short_id);
+ }
+ failed_channels.push(v.force_shutdown());
+ if let Ok(update) = self.get_channel_update(&v) {
+ new_events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ false
+ } else {
+ true
+ }
+ });
+ }
+ for failure in failed_channels.drain(..) {
+ self.finish_force_close_channel(failure);
+ }
+ if !new_events.is_empty() {
+ let mut pending_events = self.pending_events.lock().unwrap();
+ for funding_locked in new_events.drain(..) {
+ pending_events.push(funding_locked);
}
}
+ self.latest_block_height.fetch_sub(1, Ordering::AcqRel);
}
}
//TODO: Handle errors and close channel (or so)
fn handle_open_channel(&self, their_node_id: &PublicKey, msg: &msgs::OpenChannel) -> Result<msgs::AcceptChannel, HandleError> {
if msg.chain_hash != self.genesis_hash {
- return Err(HandleError{err: "Unknown genesis block hash", msg: None});
+ return Err(HandleError{err: "Unknown genesis block hash", action: None});
}
let mut channel_state = self.channel_state.lock().unwrap();
if channel_state.by_id.contains_key(&msg.temporary_channel_id) {
- return Err(HandleError{err: "temporary_channel_id collision!", msg: None});
- }
- let channel = Channel::new_from_req(&*self.fee_estimator, their_node_id.clone(), msg, 0, self.announce_channels_publicly)?;
+ return Err(HandleError{err: "temporary_channel_id collision!", action: None});
+ }
+
+ let chan_keys = if cfg!(feature = "fuzztarget") {
+ ChannelKeys {
+ funding_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0]).unwrap(),
+ revocation_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0]).unwrap(),
+ payment_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0]).unwrap(),
+ delayed_payment_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0]).unwrap(),
+ htlc_base_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0]).unwrap(),
+ channel_close_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0]).unwrap(),
+ channel_monitor_claim_key: SecretKey::from_slice(&self.secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0]).unwrap(),
+ commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+ }
+ } else {
+ let mut key_seed = [0u8; 32];
+ rng::fill_bytes(&mut key_seed);
+ match ChannelKeys::new_from_seed(&key_seed) {
+ Ok(key) => key,
+ Err(_) => panic!("RNG is busted!")
+ }
+ };
+
+ let channel = Channel::new_from_req(&*self.fee_estimator, chan_keys, their_node_id.clone(), msg, 0, false, self.announce_channels_publicly, Arc::clone(&self.logger))?;
let accept_msg = channel.get_accept_channel()?;
channel_state.by_id.insert(channel.channel_id(), channel);
Ok(accept_msg)
match channel_state.by_id.get_mut(&msg.temporary_channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
chan.accept_channel(&msg)?;
(chan.get_value_satoshis(), chan.get_funding_redeemscript().to_v0_p2wsh(), chan.get_user_id())
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
};
let mut pending_events = self.pending_events.lock().unwrap();
}
fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &msgs::FundingCreated) -> Result<msgs::FundingSigned, HandleError> {
- //TODO: broke this - a node shouldn't be able to get their channel removed by sending a
- //funding_created a second time, or long after the first, or whatever (note this also
- //leaves the short_to_id map in a busted state.
- let chan = {
+ let (chan, funding_msg, monitor_update) = {
let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.remove(&msg.temporary_channel_id) {
- Some(mut chan) => {
- if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ match channel_state.by_id.entry(msg.temporary_channel_id.clone()) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
- match chan.funding_created(msg) {
- Ok(funding_msg) => {
- (chan, funding_msg)
+ match chan.get_mut().funding_created(msg) {
+ Ok((funding_msg, monitor_update)) => {
+ (chan.remove(), funding_msg, monitor_update)
},
Err(e) => {
+ //TODO: Possibly remove the channel depending on e.action
return Err(e);
}
}
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ hash_map::Entry::Vacant(_) => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
}; // Release channel lock for install_watch_outpoint call,
// note that this means if the remote end is misbehaving and sends a message for the same
// channel back-to-back with funding_created, we'll end up thinking they sent a message
// for a bogus channel.
- let chan_monitor = chan.0.channel_monitor();
- self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor)?;
+ if let Err(_e) = self.monitor.add_update_monitor(monitor_update.get_funding_txo().unwrap(), monitor_update) {
+ unimplemented!();
+ }
let mut channel_state = self.channel_state.lock().unwrap();
- channel_state.by_id.insert(chan.1.channel_id, chan.0);
- Ok(chan.1)
+ match channel_state.by_id.entry(funding_msg.channel_id) {
+ hash_map::Entry::Occupied(_) => {
+ return Err(HandleError {
+ err: "Duplicate channel_id!",
+ action: Some(msgs::ErrorAction::SendErrorMessage { msg: msgs::ErrorMessage { channel_id: funding_msg.channel_id, data: "Already had channel with the new channel_id".to_owned() } })
+ });
+ },
+ hash_map::Entry::Vacant(e) => {
+ e.insert(chan);
+ }
+ }
+ Ok(funding_msg)
}
fn handle_funding_signed(&self, their_node_id: &PublicKey, msg: &msgs::FundingSigned) -> Result<(), HandleError> {
- let (funding_txo, user_id) = {
+ let (funding_txo, user_id, monitor) = {
let mut channel_state = self.channel_state.lock().unwrap();
match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
- chan.funding_signed(&msg)?;
- (chan.get_funding_txo().unwrap(), chan.get_user_id())
+ let chan_monitor = chan.funding_signed(&msg)?;
+ (chan.get_funding_txo().unwrap(), chan.get_user_id(), chan_monitor)
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
};
+ if let Err(_e) = self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor) {
+ unimplemented!();
+ }
let mut pending_events = self.pending_events.lock().unwrap();
pending_events.push(events::Event::FundingBroadcastSafe {
funding_txo: funding_txo,
match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
chan.funding_locked(&msg)?;
return Ok(self.get_announcement_sigs(chan)?);
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
};
}
fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &msgs::Shutdown) -> Result<(Option<msgs::Shutdown>, Option<msgs::ClosingSigned>), HandleError> {
- let res = {
- let mut channel_state = self.channel_state.lock().unwrap();
+ let (res, chan_option) = {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_state_lock.borrow_parts();
match channel_state.by_id.entry(msg.channel_id.clone()) {
hash_map::Entry::Occupied(mut chan_entry) => {
if chan_entry.get().get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
let res = chan_entry.get_mut().shutdown(&*self.fee_estimator, &msg)?;
if chan_entry.get().is_shutdown() {
- chan_entry.remove_entry();
- }
- res
+ if let Some(short_id) = chan_entry.get().get_short_channel_id() {
+ channel_state.short_to_id.remove(&short_id);
+ }
+ (res, Some(chan_entry.remove_entry().1))
+ } else { (res, None) }
},
- hash_map::Entry::Vacant(_) => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ hash_map::Entry::Vacant(_) => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
};
for payment_hash in res.2 {
// unknown_next_peer...I dunno who that is anymore....
self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), &payment_hash, HTLCFailReason::Reason { failure_code: 0x4000 | 10, data: Vec::new() });
}
+ if let Some(chan) = chan_option {
+ if let Ok(update) = self.get_channel_update(&chan) {
+ let mut events = self.pending_events.lock().unwrap();
+ events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ }
Ok((res.0, res.1))
}
fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &msgs::ClosingSigned) -> Result<Option<msgs::ClosingSigned>, HandleError> {
- let res = {
- let mut channel_state = self.channel_state.lock().unwrap();
+ let (res, chan_option) = {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_state_lock.borrow_parts();
match channel_state.by_id.entry(msg.channel_id.clone()) {
hash_map::Entry::Occupied(mut chan_entry) => {
if chan_entry.get().get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
let res = chan_entry.get_mut().closing_signed(&*self.fee_estimator, &msg)?;
if res.1.is_some() {
// also implies there are no pending HTLCs left on the channel, so we can
// fully delete it from tracking (the channel monitor is still around to
// watch for old state broadcasts)!
- chan_entry.remove_entry();
- }
- res
+ if let Some(short_id) = chan_entry.get().get_short_channel_id() {
+ channel_state.short_to_id.remove(&short_id);
+ }
+ (res, Some(chan_entry.remove_entry().1))
+ } else { (res, None) }
},
- hash_map::Entry::Vacant(_) => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ hash_map::Entry::Vacant(_) => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
};
if let Some(broadcast_tx) = res.1 {
self.tx_broadcaster.broadcast_transaction(&broadcast_tx);
}
+ if let Some(chan) = chan_option {
+ if let Ok(update) = self.get_channel_update(&chan) {
+ let mut events = self.pending_events.lock().unwrap();
+ events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ }
Ok(res.0)
}
let shared_secret = SharedSecret::new(&self.secp_ctx, &msg.onion_routing_packet.public_key, &self.our_network_key);
let (rho, mu) = ChannelManager::gen_rho_mu_from_shared_secret(&shared_secret);
- let associated_data = Vec::new(); //TODO: What to put here?
-
macro_rules! get_onion_hash {
() => {
{
($msg: expr, $err_code: expr, $data: expr) => {
return Err(msgs::HandleError {
err: $msg,
- msg: Some(msgs::ErrorAction::UpdateFailHTLC {
+ action: Some(msgs::ErrorAction::UpdateFailHTLC {
msg: msgs::UpdateFailHTLC {
channel_id: msg.channel_id,
htlc_id: msg.htlc_id,
let mut hmac = Hmac::new(Sha256::new(), &mu);
hmac.input(&msg.onion_routing_packet.hop_data);
- hmac.input(&associated_data[..]);
+ hmac.input(&msg.payment_hash);
if hmac.result() != MacResult::new(&msg.onion_routing_packet.hmac) {
return_err!("HMAC Check failed", 0x8000 | 0x4000 | 5, &get_onion_hash!());
}
}
};
+ //TODO: Check that msg.cltv_expiry is within acceptable bounds!
+
let mut pending_forward_info = if next_hop_data.hmac == [0; 32] {
// OUR PAYMENT!
if next_hop_data.data.amt_to_forward != msg.amount_msat {
hmac: next_hop_data.hmac.clone(),
};
- //TODO: Check amt_to_forward and outgoing_cltv_value are within acceptable ranges!
-
PendingForwardHTLCInfo {
onion_packet: Some(outgoing_packet),
payment_hash: msg.payment_hash.clone(),
Some(id) => id.clone(),
};
let chan = channel_state.by_id.get_mut(&forwarding_id).unwrap();
+ let fee = chan.get_our_fee_base_msat(&*self.fee_estimator) + (pending_forward_info.amt_to_forward * self.fee_proportional_millionths as u64 / 1000000) as u32;
+ if msg.amount_msat < fee as u64 || (msg.amount_msat - fee as u64) < pending_forward_info.amt_to_forward {
+ log_debug!(self, "HTLC {} incorrect amount: in {} out {} fee required {}", msg.htlc_id, msg.amount_msat, pending_forward_info.amt_to_forward, fee);
+ let chan_update = self.get_channel_update(chan).unwrap();
+ return_err!("Prior hop has deviated from specified fees parameters or origin node has obsolete ones", 0x1000 | 12, &chan_update.encode_with_len()[..]);
+ }
+ if (msg.cltv_expiry as u64) < pending_forward_info.outgoing_cltv_value as u64 + CLTV_EXPIRY_DELTA as u64 {
+ log_debug!(self, "HTLC {} incorrect CLTV: in {} out {} delta required {}", msg.htlc_id, msg.cltv_expiry, pending_forward_info.outgoing_cltv_value, CLTV_EXPIRY_DELTA);
+ let chan_update = self.get_channel_update(chan).unwrap();
+ return_err!("Forwarding node has tampered with the intended HTLC values or origin node has an obsolete cltv_expiry_delta", 0x1000 | 13, &chan_update.encode_with_len()[..]);
+ }
if !chan.is_live() {
let chan_update = self.get_channel_update(chan).unwrap();
- return_err!("Forwarding channel is not in a ready state.", 0x4000 | 10, &chan_update.encode()[..]);
+ return_err!("Forwarding channel is not in a ready state.", 0x1000 | 7, &chan_update.encode_with_len()[..]);
}
}
// destination. That's OK since those nodes are probably busted or trying to do network
// mapping through repeated loops. In either case, we want them to stop talking to us, so
// we send permanent_node_failure.
- match &claimable_htlcs_entry {
- &hash_map::Entry::Occupied(ref e) => {
- let mut acceptable_cycle = false;
- match e.get() {
- &PendingOutboundHTLC::OutboundRoute { .. } => {
- acceptable_cycle = pending_forward_info.short_channel_id == 0;
- },
- _ => {},
- }
- if !acceptable_cycle {
- return_err!("Payment looped through us twice", 0x4000 | 0x2000 | 2, &[0;0]);
- }
- },
- _ => {},
+ if let &hash_map::Entry::Occupied(ref e) = &claimable_htlcs_entry {
+ let mut acceptable_cycle = false;
+ if let &PendingOutboundHTLC::OutboundRoute { .. } = e.get() {
+ acceptable_cycle = pending_forward_info.short_channel_id == 0;
+ }
+ if !acceptable_cycle {
+ return_err!("Payment looped through us twice", 0x4000 | 0x2000 | 2, &[0;0]);
+ }
}
let (source_short_channel_id, res) = match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
if !chan.is_usable() {
- return Err(HandleError{err: "Channel not yet available for receiving HTLCs", msg: None});
+ return Err(HandleError{err: "Channel not yet available for receiving HTLCs", action: None});
}
let short_channel_id = chan.get_short_channel_id().unwrap();
pending_forward_info.prev_short_channel_id = short_channel_id;
(short_channel_id, chan.update_add_htlc(&msg, pending_forward_info)?)
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None}), //TODO: panic?
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None}),
};
match claimable_htlcs_entry {
hash_map::Entry::Occupied(mut e) => {
let outbound_route = e.get_mut();
- let route = match outbound_route {
- &mut PendingOutboundHTLC::OutboundRoute { ref route } => {
- route.clone()
+ let (route, session_priv) = match outbound_route {
+ &mut PendingOutboundHTLC::OutboundRoute { ref route, ref session_priv } => {
+ (route.clone(), session_priv.clone())
},
- _ => { panic!("WAT") },
+ _ => unreachable!(),
};
*outbound_route = PendingOutboundHTLC::CycledRoute {
source_short_channel_id,
incoming_packet_shared_secret: shared_secret,
- route
+ route,
+ session_priv,
};
},
hash_map::Entry::Vacant(e) => {
// is broken, we may have enough info to get our own money!
self.claim_funds_internal(msg.payment_preimage.clone(), false);
- let monitor = {
- let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
- }
- chan.update_fulfill_htlc(&msg)?;
- chan.channel_monitor()
- },
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
- }
- };
- self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor)?;
- Ok(())
+ let mut channel_state = self.channel_state.lock().unwrap();
+ match channel_state.by_id.get_mut(&msg.channel_id) {
+ Some(chan) => {
+ if chan.get_their_node_id() != *their_node_id {
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
+ }
+ chan.update_fulfill_htlc(&msg)
+ },
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
+ }
}
- fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), HandleError> {
+ fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<Option<msgs::HTLCFailChannelUpdate>, HandleError> {
let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.get_mut(&msg.channel_id) {
+ let payment_hash = match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
chan.update_fail_htlc(&msg, HTLCFailReason::ErrorPacket { err: msg.reason.clone() })
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
+ }?;
+
+ if let Some(pending_htlc) = channel_state.claimable_htlcs.get(&payment_hash) {
+ match pending_htlc {
+ &PendingOutboundHTLC::OutboundRoute { ref route, ref session_priv } => {
+ // Handle packed channel/node updates for passing back for the route handler
+ let mut packet_decrypted = msg.reason.data.clone();
+ let mut res = None;
+ Self::construct_onion_keys_callback(&self.secp_ctx, &route, &session_priv, |shared_secret, _, _, route_hop| {
+ if res.is_some() { return; }
+
+ let ammag = ChannelManager::gen_ammag_from_shared_secret(&shared_secret);
+
+ let mut decryption_tmp = Vec::with_capacity(packet_decrypted.len());
+ decryption_tmp.resize(packet_decrypted.len(), 0);
+ let mut chacha = ChaCha20::new(&ammag, &[0u8; 8]);
+ chacha.process(&packet_decrypted, &mut decryption_tmp[..]);
+ packet_decrypted = decryption_tmp;
+
+ if let Ok(err_packet) = msgs::DecodedOnionErrorPacket::decode(&packet_decrypted) {
+ if err_packet.failuremsg.len() >= 2 {
+ let um = ChannelManager::gen_um_from_shared_secret(&shared_secret);
+
+ let mut hmac = Hmac::new(Sha256::new(), &um);
+ hmac.input(&err_packet.encode()[32..]);
+ let mut calc_tag = [0u8; 32];
+ hmac.raw_result(&mut calc_tag);
+ if crypto::util::fixed_time_eq(&calc_tag, &err_packet.hmac) {
+ const UNKNOWN_CHAN: u16 = 0x4000|10;
+ const TEMP_CHAN_FAILURE: u16 = 0x4000|7;
+ match byte_utils::slice_to_be16(&err_packet.failuremsg[0..2]) {
+ TEMP_CHAN_FAILURE => {
+ if err_packet.failuremsg.len() >= 4 {
+ let update_len = byte_utils::slice_to_be16(&err_packet.failuremsg[2..4]) as usize;
+ if err_packet.failuremsg.len() >= 4 + update_len {
+ if let Ok(chan_update) = msgs::ChannelUpdate::decode(&err_packet.failuremsg[4..4 + update_len]) {
+ res = Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage {
+ msg: chan_update,
+ });
+ }
+ }
+ }
+ },
+ UNKNOWN_CHAN => {
+ // No such next-hop. We know this came from the
+ // current node as the HMAC validated.
+ res = Some(msgs::HTLCFailChannelUpdate::ChannelClosed {
+ short_channel_id: route_hop.short_channel_id
+ });
+ },
+ _ => {}, //TODO: Enumerate all of these!
+ }
+ }
+ }
+ }
+ }).unwrap();
+ Ok(res)
+ },
+ _ => { Ok(None) },
+ }
+ } else {
+ Ok(None)
}
}
match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
chan.update_fail_malformed_htlc(&msg, HTLCFailReason::Reason { failure_code: msg.failure_code, data: Vec::new() })
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
}
fn handle_commitment_signed(&self, their_node_id: &PublicKey, msg: &msgs::CommitmentSigned) -> Result<(msgs::RevokeAndACK, Option<msgs::CommitmentSigned>), HandleError> {
- let (res, monitor) = {
+ let (revoke_and_ack, commitment_signed, chan_monitor) = {
let mut channel_state = self.channel_state.lock().unwrap();
match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
- (chan.commitment_signed(&msg)?, chan.channel_monitor())
+ chan.commitment_signed(&msg)?
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
};
- //TODO: Only if we store HTLC sigs
- self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor)?;
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!();
+ }
- Ok(res)
+ Ok((revoke_and_ack, commitment_signed))
}
fn handle_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &msgs::RevokeAndACK) -> Result<Option<msgs::CommitmentUpdate>, HandleError> {
- let ((res, mut pending_forwards, mut pending_failures), monitor) = {
+ let (res, mut pending_forwards, mut pending_failures, chan_monitor) = {
let mut channel_state = self.channel_state.lock().unwrap();
match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
- (chan.revoke_and_ack(&msg)?, chan.channel_monitor())
+ chan.revoke_and_ack(&msg)?
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
};
- self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor)?;
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!();
+ }
for failure in pending_failures.drain(..) {
self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), &failure.0, failure.1);
}
match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
chan.update_fee(&*self.fee_estimator, &msg)
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
}
match channel_state.by_id.get_mut(&msg.channel_id) {
Some(chan) => {
if chan.get_their_node_id() != *their_node_id {
- return Err(HandleError{err: "Got a message for a channel from the wrong node!", msg: None})
+ return Err(HandleError{err: "Got a message for a channel from the wrong node!", action: None})
}
if !chan.is_usable() {
- return Err(HandleError{err: "Got an announcement_signatures before we were ready for it", msg: None });
+ return Err(HandleError{err: "Got an announcement_signatures before we were ready for it", action: None });
}
let our_node_id = self.get_our_node_id();
secp_call!(self.secp_ctx.verify(&msghash, &msg.node_signature, if were_node_one { &announcement.node_id_2 } else { &announcement.node_id_1 }));
secp_call!(self.secp_ctx.verify(&msghash, &msg.bitcoin_signature, if were_node_one { &announcement.bitcoin_key_2 } else { &announcement.bitcoin_key_1 }));
- let our_node_sig = secp_call!(self.secp_ctx.sign(&msghash, &self.our_network_key));
+ let our_node_sig = self.secp_ctx.sign(&msghash, &self.our_network_key);
(msgs::ChannelAnnouncement {
node_signature_1: if were_node_one { our_node_sig } else { msg.node_signature },
contents: announcement,
}, self.get_channel_update(chan).unwrap()) // can only fail if we're not in a ready state
},
- None => return Err(HandleError{err: "Failed to find corresponding channel", msg: None})
+ None => return Err(HandleError{err: "Failed to find corresponding channel", action: None})
}
};
let mut pending_events = self.pending_events.lock().unwrap();
}
fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool) {
- let mut channel_state_lock = self.channel_state.lock().unwrap();
- let channel_state = channel_state_lock.borrow_parts();
- let short_to_id = channel_state.short_to_id;
- if no_connection_possible {
- channel_state.by_id.retain(move |_, chan| {
- if chan.get_their_node_id() == *their_node_id {
- match chan.get_short_channel_id() {
- Some(short_id) => {
+ let mut new_events = Vec::new();
+ let mut failed_channels = Vec::new();
+ {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_state_lock.borrow_parts();
+ let short_to_id = channel_state.short_to_id;
+ if no_connection_possible {
+ channel_state.by_id.retain(|_, chan| {
+ if chan.get_their_node_id() == *their_node_id {
+ if let Some(short_id) = chan.get_short_channel_id() {
short_to_id.remove(&short_id);
- },
- None => {},
+ }
+ failed_channels.push(chan.force_shutdown());
+ if let Ok(update) = self.get_channel_update(&chan) {
+ new_events.push(events::Event::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ false
+ } else {
+ true
+ }
+ });
+ } else {
+ for chan in channel_state.by_id {
+ if chan.1.get_their_node_id() == *their_node_id {
+ //TODO: mark channel disabled (and maybe announce such after a timeout). Also
+ //fail and wipe any uncommitted outbound HTLCs as those are considered after
+ //reconnect.
}
- //TODO: get the latest commitment tx, any HTLC txn built on top of it, etc out
- //of the channel and throw those into the announcement blackhole.
- false
- } else {
- true
- }
- });
- } else {
- for chan in channel_state.by_id {
- if chan.1.get_their_node_id() == *their_node_id {
- //TODO: mark channel disabled (and maybe announce such after a timeout). Also
- //fail and wipe any uncommitted outbound HTLCs as those are considered after
- //reconnect.
}
}
}
+ for failure in failed_channels.drain(..) {
+ self.finish_force_close_channel(failure);
+ }
+ if !new_events.is_empty() {
+ let mut pending_events = self.pending_events.lock().unwrap();
+ for event in new_events.drain(..) {
+ pending_events.push(event);
+ }
+ }
}
}
#[cfg(test)]
mod tests {
use chain::chaininterface;
+ use chain::transaction::OutPoint;
+ use chain::chaininterface::ChainListener;
use ln::channelmanager::{ChannelManager,OnionKeys};
use ln::router::{Route, RouteHop, Router};
use ln::msgs;
use ln::msgs::{MsgEncodable,ChannelMessageHandler,RoutingMessageHandler};
use util::test_utils;
use util::events::{Event, EventsProvider};
+ use util::logger::Logger;
- use bitcoin::util::misc::hex_bytes;
use bitcoin::util::hash::Sha256dHash;
- use bitcoin::util::uint::Uint256;
- use bitcoin::blockdata::block::BlockHeader;
+ use bitcoin::blockdata::block::{Block, BlockHeader};
use bitcoin::blockdata::transaction::{Transaction, TxOut};
use bitcoin::network::constants::Network;
use bitcoin::network::serialize::serialize;
use bitcoin::network::serialize::BitcoinHash;
+ use hex;
+
use secp256k1::Secp256k1;
use secp256k1::key::{PublicKey,SecretKey};
use std::default::Default;
use std::sync::{Arc, Mutex};
use std::time::Instant;
+ use std::mem;
fn build_test_onion_keys() -> Vec<OnionKeys> {
// Keys from BOLT 4, used in both test vector tests
let route = Route {
hops: vec!(
RouteHop {
- pubkey: PublicKey::from_slice(&secp_ctx, &hex_bytes("02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619").unwrap()[..]).unwrap(),
+ pubkey: PublicKey::from_slice(&secp_ctx, &hex::decode("02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619").unwrap()[..]).unwrap(),
short_channel_id: 0, fee_msat: 0, cltv_expiry_delta: 0 // Test vectors are garbage and not generateble from a RouteHop, we fill in payloads manually
},
RouteHop {
- pubkey: PublicKey::from_slice(&secp_ctx, &hex_bytes("0324653eac434488002cc06bbfb7f10fe18991e35f9fe4302dbea6d2353dc0ab1c").unwrap()[..]).unwrap(),
+ pubkey: PublicKey::from_slice(&secp_ctx, &hex::decode("0324653eac434488002cc06bbfb7f10fe18991e35f9fe4302dbea6d2353dc0ab1c").unwrap()[..]).unwrap(),
short_channel_id: 0, fee_msat: 0, cltv_expiry_delta: 0 // Test vectors are garbage and not generateble from a RouteHop, we fill in payloads manually
},
RouteHop {
- pubkey: PublicKey::from_slice(&secp_ctx, &hex_bytes("027f31ebc5462c1fdce1b737ecff52d37d75dea43ce11c74d25aa297165faa2007").unwrap()[..]).unwrap(),
+ pubkey: PublicKey::from_slice(&secp_ctx, &hex::decode("027f31ebc5462c1fdce1b737ecff52d37d75dea43ce11c74d25aa297165faa2007").unwrap()[..]).unwrap(),
short_channel_id: 0, fee_msat: 0, cltv_expiry_delta: 0 // Test vectors are garbage and not generateble from a RouteHop, we fill in payloads manually
},
RouteHop {
- pubkey: PublicKey::from_slice(&secp_ctx, &hex_bytes("032c0b7cf95324a07d05398b240174dc0c2be444d96b159aa6c7f7b1e668680991").unwrap()[..]).unwrap(),
+ pubkey: PublicKey::from_slice(&secp_ctx, &hex::decode("032c0b7cf95324a07d05398b240174dc0c2be444d96b159aa6c7f7b1e668680991").unwrap()[..]).unwrap(),
short_channel_id: 0, fee_msat: 0, cltv_expiry_delta: 0 // Test vectors are garbage and not generateble from a RouteHop, we fill in payloads manually
},
RouteHop {
- pubkey: PublicKey::from_slice(&secp_ctx, &hex_bytes("02edabbd16b41c8371b92ef2f04c1185b4f03b6dcd52ba9b78d9d7c89c8f221145").unwrap()[..]).unwrap(),
+ pubkey: PublicKey::from_slice(&secp_ctx, &hex::decode("02edabbd16b41c8371b92ef2f04c1185b4f03b6dcd52ba9b78d9d7c89c8f221145").unwrap()[..]).unwrap(),
short_channel_id: 0, fee_msat: 0, cltv_expiry_delta: 0 // Test vectors are garbage and not generateble from a RouteHop, we fill in payloads manually
},
),
};
- let session_priv = SecretKey::from_slice(&secp_ctx, &hex_bytes("4141414141414141414141414141414141414141414141414141414141414141").unwrap()[..]).unwrap();
+ let session_priv = SecretKey::from_slice(&secp_ctx, &hex::decode("4141414141414141414141414141414141414141414141414141414141414141").unwrap()[..]).unwrap();
let onion_keys = ChannelManager::construct_onion_keys(&secp_ctx, &route, &session_priv).unwrap();
assert_eq!(onion_keys.len(), route.hops.len());
// Packet creation test vectors from BOLT 4
let onion_keys = build_test_onion_keys();
- assert_eq!(onion_keys[0].shared_secret[..], hex_bytes("53eb63ea8a3fec3b3cd433b85cd62a4b145e1dda09391b348c4e1cd36a03ea66").unwrap()[..]);
- assert_eq!(onion_keys[0].blinding_factor[..], hex_bytes("2ec2e5da605776054187180343287683aa6a51b4b1c04d6dd49c45d8cffb3c36").unwrap()[..]);
- assert_eq!(onion_keys[0].ephemeral_pubkey.serialize()[..], hex_bytes("02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619").unwrap()[..]);
- assert_eq!(onion_keys[0].rho, hex_bytes("ce496ec94def95aadd4bec15cdb41a740c9f2b62347c4917325fcc6fb0453986").unwrap()[..]);
- assert_eq!(onion_keys[0].mu, hex_bytes("b57061dc6d0a2b9f261ac410c8b26d64ac5506cbba30267a649c28c179400eba").unwrap()[..]);
-
- assert_eq!(onion_keys[1].shared_secret[..], hex_bytes("a6519e98832a0b179f62123b3567c106db99ee37bef036e783263602f3488fae").unwrap()[..]);
- assert_eq!(onion_keys[1].blinding_factor[..], hex_bytes("bf66c28bc22e598cfd574a1931a2bafbca09163df2261e6d0056b2610dab938f").unwrap()[..]);
- assert_eq!(onion_keys[1].ephemeral_pubkey.serialize()[..], hex_bytes("028f9438bfbf7feac2e108d677e3a82da596be706cc1cf342b75c7b7e22bf4e6e2").unwrap()[..]);
- assert_eq!(onion_keys[1].rho, hex_bytes("450ffcabc6449094918ebe13d4f03e433d20a3d28a768203337bc40b6e4b2c59").unwrap()[..]);
- assert_eq!(onion_keys[1].mu, hex_bytes("05ed2b4a3fb023c2ff5dd6ed4b9b6ea7383f5cfe9d59c11d121ec2c81ca2eea9").unwrap()[..]);
-
- assert_eq!(onion_keys[2].shared_secret[..], hex_bytes("3a6b412548762f0dbccce5c7ae7bb8147d1caf9b5471c34120b30bc9c04891cc").unwrap()[..]);
- assert_eq!(onion_keys[2].blinding_factor[..], hex_bytes("a1f2dadd184eb1627049673f18c6325814384facdee5bfd935d9cb031a1698a5").unwrap()[..]);
- assert_eq!(onion_keys[2].ephemeral_pubkey.serialize()[..], hex_bytes("03bfd8225241ea71cd0843db7709f4c222f62ff2d4516fd38b39914ab6b83e0da0").unwrap()[..]);
- assert_eq!(onion_keys[2].rho, hex_bytes("11bf5c4f960239cb37833936aa3d02cea82c0f39fd35f566109c41f9eac8deea").unwrap()[..]);
- assert_eq!(onion_keys[2].mu, hex_bytes("caafe2820fa00eb2eeb78695ae452eba38f5a53ed6d53518c5c6edf76f3f5b78").unwrap()[..]);
-
- assert_eq!(onion_keys[3].shared_secret[..], hex_bytes("21e13c2d7cfe7e18836df50872466117a295783ab8aab0e7ecc8c725503ad02d").unwrap()[..]);
- assert_eq!(onion_keys[3].blinding_factor[..], hex_bytes("7cfe0b699f35525029ae0fa437c69d0f20f7ed4e3916133f9cacbb13c82ff262").unwrap()[..]);
- assert_eq!(onion_keys[3].ephemeral_pubkey.serialize()[..], hex_bytes("031dde6926381289671300239ea8e57ffaf9bebd05b9a5b95beaf07af05cd43595").unwrap()[..]);
- assert_eq!(onion_keys[3].rho, hex_bytes("cbe784ab745c13ff5cffc2fbe3e84424aa0fd669b8ead4ee562901a4a4e89e9e").unwrap()[..]);
- assert_eq!(onion_keys[3].mu, hex_bytes("5052aa1b3d9f0655a0932e50d42f0c9ba0705142c25d225515c45f47c0036ee9").unwrap()[..]);
-
- assert_eq!(onion_keys[4].shared_secret[..], hex_bytes("b5756b9b542727dbafc6765a49488b023a725d631af688fc031217e90770c328").unwrap()[..]);
- assert_eq!(onion_keys[4].blinding_factor[..], hex_bytes("c96e00dddaf57e7edcd4fb5954be5b65b09f17cb6d20651b4e90315be5779205").unwrap()[..]);
- assert_eq!(onion_keys[4].ephemeral_pubkey.serialize()[..], hex_bytes("03a214ebd875aab6ddfd77f22c5e7311d7f77f17a169e599f157bbcdae8bf071f4").unwrap()[..]);
- assert_eq!(onion_keys[4].rho, hex_bytes("034e18b8cc718e8af6339106e706c52d8df89e2b1f7e9142d996acf88df8799b").unwrap()[..]);
- assert_eq!(onion_keys[4].mu, hex_bytes("8e45e5c61c2b24cb6382444db6698727afb063adecd72aada233d4bf273d975a").unwrap()[..]);
+ assert_eq!(onion_keys[0].shared_secret[..], hex::decode("53eb63ea8a3fec3b3cd433b85cd62a4b145e1dda09391b348c4e1cd36a03ea66").unwrap()[..]);
+ assert_eq!(onion_keys[0].blinding_factor[..], hex::decode("2ec2e5da605776054187180343287683aa6a51b4b1c04d6dd49c45d8cffb3c36").unwrap()[..]);
+ assert_eq!(onion_keys[0].ephemeral_pubkey.serialize()[..], hex::decode("02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619").unwrap()[..]);
+ assert_eq!(onion_keys[0].rho, hex::decode("ce496ec94def95aadd4bec15cdb41a740c9f2b62347c4917325fcc6fb0453986").unwrap()[..]);
+ assert_eq!(onion_keys[0].mu, hex::decode("b57061dc6d0a2b9f261ac410c8b26d64ac5506cbba30267a649c28c179400eba").unwrap()[..]);
+
+ assert_eq!(onion_keys[1].shared_secret[..], hex::decode("a6519e98832a0b179f62123b3567c106db99ee37bef036e783263602f3488fae").unwrap()[..]);
+ assert_eq!(onion_keys[1].blinding_factor[..], hex::decode("bf66c28bc22e598cfd574a1931a2bafbca09163df2261e6d0056b2610dab938f").unwrap()[..]);
+ assert_eq!(onion_keys[1].ephemeral_pubkey.serialize()[..], hex::decode("028f9438bfbf7feac2e108d677e3a82da596be706cc1cf342b75c7b7e22bf4e6e2").unwrap()[..]);
+ assert_eq!(onion_keys[1].rho, hex::decode("450ffcabc6449094918ebe13d4f03e433d20a3d28a768203337bc40b6e4b2c59").unwrap()[..]);
+ assert_eq!(onion_keys[1].mu, hex::decode("05ed2b4a3fb023c2ff5dd6ed4b9b6ea7383f5cfe9d59c11d121ec2c81ca2eea9").unwrap()[..]);
+
+ assert_eq!(onion_keys[2].shared_secret[..], hex::decode("3a6b412548762f0dbccce5c7ae7bb8147d1caf9b5471c34120b30bc9c04891cc").unwrap()[..]);
+ assert_eq!(onion_keys[2].blinding_factor[..], hex::decode("a1f2dadd184eb1627049673f18c6325814384facdee5bfd935d9cb031a1698a5").unwrap()[..]);
+ assert_eq!(onion_keys[2].ephemeral_pubkey.serialize()[..], hex::decode("03bfd8225241ea71cd0843db7709f4c222f62ff2d4516fd38b39914ab6b83e0da0").unwrap()[..]);
+ assert_eq!(onion_keys[2].rho, hex::decode("11bf5c4f960239cb37833936aa3d02cea82c0f39fd35f566109c41f9eac8deea").unwrap()[..]);
+ assert_eq!(onion_keys[2].mu, hex::decode("caafe2820fa00eb2eeb78695ae452eba38f5a53ed6d53518c5c6edf76f3f5b78").unwrap()[..]);
+
+ assert_eq!(onion_keys[3].shared_secret[..], hex::decode("21e13c2d7cfe7e18836df50872466117a295783ab8aab0e7ecc8c725503ad02d").unwrap()[..]);
+ assert_eq!(onion_keys[3].blinding_factor[..], hex::decode("7cfe0b699f35525029ae0fa437c69d0f20f7ed4e3916133f9cacbb13c82ff262").unwrap()[..]);
+ assert_eq!(onion_keys[3].ephemeral_pubkey.serialize()[..], hex::decode("031dde6926381289671300239ea8e57ffaf9bebd05b9a5b95beaf07af05cd43595").unwrap()[..]);
+ assert_eq!(onion_keys[3].rho, hex::decode("cbe784ab745c13ff5cffc2fbe3e84424aa0fd669b8ead4ee562901a4a4e89e9e").unwrap()[..]);
+ assert_eq!(onion_keys[3].mu, hex::decode("5052aa1b3d9f0655a0932e50d42f0c9ba0705142c25d225515c45f47c0036ee9").unwrap()[..]);
+
+ assert_eq!(onion_keys[4].shared_secret[..], hex::decode("b5756b9b542727dbafc6765a49488b023a725d631af688fc031217e90770c328").unwrap()[..]);
+ assert_eq!(onion_keys[4].blinding_factor[..], hex::decode("c96e00dddaf57e7edcd4fb5954be5b65b09f17cb6d20651b4e90315be5779205").unwrap()[..]);
+ assert_eq!(onion_keys[4].ephemeral_pubkey.serialize()[..], hex::decode("03a214ebd875aab6ddfd77f22c5e7311d7f77f17a169e599f157bbcdae8bf071f4").unwrap()[..]);
+ assert_eq!(onion_keys[4].rho, hex::decode("034e18b8cc718e8af6339106e706c52d8df89e2b1f7e9142d996acf88df8799b").unwrap()[..]);
+ assert_eq!(onion_keys[4].mu, hex::decode("8e45e5c61c2b24cb6382444db6698727afb063adecd72aada233d4bf273d975a").unwrap()[..]);
// Test vectors below are flat-out wrong: they claim to set outgoing_cltv_value to non-0 :/
let payloads = vec!(
},
);
- let packet = ChannelManager::construct_onion_packet(payloads, onion_keys, hex_bytes("4242424242424242424242424242424242424242424242424242424242424242").unwrap()).unwrap();
+ let packet = ChannelManager::construct_onion_packet(payloads, onion_keys, &[0x42; 32]).unwrap();
// Just check the final packet encoding, as it includes all the per-hop vectors in it
// anyway...
- assert_eq!(packet.encode(), hex_bytes("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").unwrap());
+ assert_eq!(packet.encode(), hex::decode("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").unwrap());
}
#[test]
let onion_keys = build_test_onion_keys();
let onion_error = ChannelManager::build_failure_packet(&onion_keys[4].shared_secret, 0x2002, &[0; 0]);
- assert_eq!(onion_error.encode(), hex_bytes("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").unwrap());
+ assert_eq!(onion_error.encode(), hex::decode("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").unwrap());
let onion_packet_1 = ChannelManager::encrypt_failure_packet(&onion_keys[4].shared_secret, &onion_error.encode()[..]);
- assert_eq!(onion_packet_1.data, hex_bytes("a5e6bd0c74cb347f10cce367f949098f2457d14c046fd8a22cb96efb30b0fdcda8cb9168b50f2fd45edd73c1b0c8b33002df376801ff58aaa94000bf8a86f92620f343baef38a580102395ae3abf9128d1047a0736ff9b83d456740ebbb4aeb3aa9737f18fb4afb4aa074fb26c4d702f42968888550a3bded8c05247e045b866baef0499f079fdaeef6538f31d44deafffdfd3afa2fb4ca9082b8f1c465371a9894dd8c243fb4847e004f5256b3e90e2edde4c9fb3082ddfe4d1e734cacd96ef0706bf63c9984e22dc98851bcccd1c3494351feb458c9c6af41c0044bea3c47552b1d992ae542b17a2d0bba1a096c78d169034ecb55b6e3a7263c26017f033031228833c1daefc0dedb8cf7c3e37c9c37ebfe42f3225c326e8bcfd338804c145b16e34e4").unwrap());
+ assert_eq!(onion_packet_1.data, hex::decode("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").unwrap());
let onion_packet_2 = ChannelManager::encrypt_failure_packet(&onion_keys[3].shared_secret, &onion_packet_1.data[..]);
- assert_eq!(onion_packet_2.data, hex_bytes("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").unwrap());
+ assert_eq!(onion_packet_2.data, hex::decode("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").unwrap());
let onion_packet_3 = ChannelManager::encrypt_failure_packet(&onion_keys[2].shared_secret, &onion_packet_2.data[..]);
- assert_eq!(onion_packet_3.data, hex_bytes("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").unwrap());
+ assert_eq!(onion_packet_3.data, hex::decode("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").unwrap());
let onion_packet_4 = ChannelManager::encrypt_failure_packet(&onion_keys[1].shared_secret, &onion_packet_3.data[..]);
- assert_eq!(onion_packet_4.data, hex_bytes("aac3200c4968f56b21f53e5e374e3a2383ad2b1b6501bbcc45abc31e59b26881b7dfadbb56ec8dae8857add94e6702fb4c3a4de22e2e669e1ed926b04447fc73034bb730f4932acd62727b75348a648a1128744657ca6a4e713b9b646c3ca66cac02cdab44dd3439890ef3aaf61708714f7375349b8da541b2548d452d84de7084bb95b3ac2345201d624d31f4d52078aa0fa05a88b4e20202bd2b86ac5b52919ea305a8949de95e935eed0319cf3cf19ebea61d76ba92532497fcdc9411d06bcd4275094d0a4a3c5d3a945e43305a5a9256e333e1f64dbca5fcd4e03a39b9012d197506e06f29339dfee3331995b21615337ae060233d39befea925cc262873e0530408e6990f1cbd233a150ef7b004ff6166c70c68d9f8c853c1abca640b8660db2921").unwrap());
+ assert_eq!(onion_packet_4.data, hex::decode("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").unwrap());
let onion_packet_5 = ChannelManager::encrypt_failure_packet(&onion_keys[0].shared_secret, &onion_packet_4.data[..]);
- assert_eq!(onion_packet_5.data, hex_bytes("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").unwrap());
+ assert_eq!(onion_packet_5.data, hex::decode("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").unwrap());
}
fn confirm_transaction(chain: &chaininterface::ChainWatchInterfaceUtil, tx: &Transaction, chan_id: u32) {
+ assert!(chain.does_match_tx(tx));
let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
chain.block_connected_checked(&header, 1, &[tx; 1], &[chan_id; 1]);
for i in 2..100 {
}
static mut CHAN_COUNT: u32 = 0;
- fn create_chan_between_nodes(node_a: &Node, node_b: &Node) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, Uint256, Transaction) {
- let open_chan = node_a.node.create_channel(node_b.node.get_our_node_id(), 100000, 42).unwrap();
- let accept_chan = node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), &open_chan).unwrap();
+ fn create_chan_between_nodes(node_a: &Node, node_b: &Node) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
+ node_a.node.create_channel(node_b.node.get_our_node_id(), 100000, 10001, 42).unwrap();
+
+ let events_1 = node_a.node.get_and_clear_pending_events();
+ assert_eq!(events_1.len(), 1);
+ let accept_chan = match events_1[0] {
+ Event::SendOpenChannel { ref node_id, ref msg } => {
+ assert_eq!(*node_id, node_b.node.get_our_node_id());
+ node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), msg).unwrap()
+ },
+ _ => panic!("Unexpected event"),
+ };
+
node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), &accept_chan).unwrap();
let chan_id = unsafe { CHAN_COUNT };
let tx;
let funding_output;
- let events_1 = node_a.node.get_and_clear_pending_events();
- assert_eq!(events_1.len(), 1);
- match events_1[0] {
+ let events_2 = node_a.node.get_and_clear_pending_events();
+ assert_eq!(events_2.len(), 1);
+ match events_2[0] {
Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
assert_eq!(*channel_value_satoshis, 100000);
assert_eq!(user_channel_id, 42);
tx = Transaction { version: chan_id as u32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
value: *channel_value_satoshis, script_pubkey: output_script.clone(),
}]};
- funding_output = (Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0);
+ funding_output = OutPoint::new(Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0);
- node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output.clone());
+ node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
assert_eq!(added_monitors.len(), 1);
assert_eq!(added_monitors[0].0, funding_output);
_ => panic!("Unexpected event"),
}
- let events_2 = node_a.node.get_and_clear_pending_events();
- assert_eq!(events_2.len(), 1);
- let funding_signed = match events_2[0] {
+ let events_3 = node_a.node.get_and_clear_pending_events();
+ assert_eq!(events_3.len(), 1);
+ let funding_signed = match events_3[0] {
Event::SendFundingCreated { ref node_id, ref msg } => {
assert_eq!(*node_id, node_b.node.get_our_node_id());
let res = node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), msg).unwrap();
};
node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &funding_signed).unwrap();
+ {
+ let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ assert_eq!(added_monitors[0].0, funding_output);
+ added_monitors.clear();
+ }
- let events_3 = node_a.node.get_and_clear_pending_events();
- assert_eq!(events_3.len(), 1);
- match events_3[0] {
+ let events_4 = node_a.node.get_and_clear_pending_events();
+ assert_eq!(events_4.len(), 1);
+ match events_4[0] {
Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
assert_eq!(user_channel_id, 42);
assert_eq!(*funding_txo, funding_output);
};
confirm_transaction(&node_a.chain_monitor, &tx, chan_id);
- let events_4 = node_a.node.get_and_clear_pending_events();
- assert_eq!(events_4.len(), 1);
- match events_4[0] {
+ let events_5 = node_a.node.get_and_clear_pending_events();
+ assert_eq!(events_5.len(), 1);
+ match events_5[0] {
Event::SendFundingLocked { ref node_id, ref msg, ref announcement_sigs } => {
assert_eq!(*node_id, node_b.node.get_our_node_id());
assert!(announcement_sigs.is_none());
let channel_id;
confirm_transaction(&node_b.chain_monitor, &tx, chan_id);
- let events_5 = node_b.node.get_and_clear_pending_events();
- assert_eq!(events_5.len(), 1);
- let as_announcement_sigs = match events_5[0] {
+ let events_6 = node_b.node.get_and_clear_pending_events();
+ assert_eq!(events_6.len(), 1);
+ let as_announcement_sigs = match events_6[0] {
Event::SendFundingLocked { ref node_id, ref msg, ref announcement_sigs } => {
assert_eq!(*node_id, node_a.node.get_our_node_id());
channel_id = msg.channel_id.clone();
_ => panic!("Unexpected event"),
};
- let events_6 = node_a.node.get_and_clear_pending_events();
- assert_eq!(events_6.len(), 1);
- let (announcement, as_update) = match events_6[0] {
+ let events_7 = node_a.node.get_and_clear_pending_events();
+ assert_eq!(events_7.len(), 1);
+ let (announcement, as_update) = match events_7[0] {
Event::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
(msg, update_msg)
},
};
node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_announcement_sigs).unwrap();
- let events_7 = node_b.node.get_and_clear_pending_events();
- assert_eq!(events_7.len(), 1);
- let bs_update = match events_7[0] {
+ let events_8 = node_b.node.get_and_clear_pending_events();
+ assert_eq!(events_8.len(), 1);
+ let bs_update = match events_8[0] {
Event::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
assert!(*announcement == *msg);
update_msg
((*announcement).clone(), (*as_update).clone(), (*bs_update).clone(), channel_id, tx)
}
- fn create_announced_chan_between_nodes(nodes: &Vec<Node>, a: usize, b: usize) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Uint256, Transaction) {
+ fn create_announced_chan_between_nodes(nodes: &Vec<Node>, a: usize, b: usize) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
let chan_announcement = create_chan_between_nodes(&nodes[a], &nodes[b]);
for node in nodes {
assert!(node.router.handle_channel_announcement(&chan_announcement.0).unwrap());
(chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
}
- fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &Uint256, funding_tx: Transaction, close_inbound_first: bool) {
+ fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &[u8; 32], funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate) {
let (node_a, broadcaster_a) = if close_inbound_first { (&inbound_node.node, &inbound_node.tx_broadcaster) } else { (&outbound_node.node, &outbound_node.tx_broadcaster) };
let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
let (tx_a, tx_b);
- let shutdown_a = node_a.close_channel(channel_id).unwrap();
+ node_a.close_channel(channel_id).unwrap();
+ let events_1 = node_a.get_and_clear_pending_events();
+ assert_eq!(events_1.len(), 1);
+ let shutdown_a = match events_1[0] {
+ Event::SendShutdown { ref node_id, ref msg } => {
+ assert_eq!(node_id, &node_b.get_our_node_id());
+ msg.clone()
+ },
+ _ => panic!("Unexpected event"),
+ };
+
let (shutdown_b, mut closing_signed_b) = node_b.handle_shutdown(&node_a.get_our_node_id(), &shutdown_a).unwrap();
if !close_inbound_first {
assert!(closing_signed_b.is_none());
let mut funding_tx_map = HashMap::new();
funding_tx_map.insert(funding_tx.txid(), funding_tx);
tx_a.verify(&funding_tx_map).unwrap();
+
+ let events_2 = node_a.get_and_clear_pending_events();
+ assert_eq!(events_2.len(), 1);
+ let as_update = match events_2[0] {
+ Event::BroadcastChannelUpdate { ref msg } => {
+ msg.clone()
+ },
+ _ => panic!("Unexpected event"),
+ };
+
+ let events_3 = node_b.get_and_clear_pending_events();
+ assert_eq!(events_3.len(), 1);
+ let bs_update = match events_3[0] {
+ Event::BroadcastChannelUpdate { ref msg } => {
+ msg.clone()
+ },
+ _ => panic!("Unexpected event"),
+ };
+
+ (as_update, bs_update)
}
struct SendEvent {
};
let mut payment_event = {
- let msgs = origin_node.node.send_payment(route, our_payment_hash).unwrap().unwrap();
- SendEvent {
- node_id: expected_route[0].node.get_our_node_id(),
- msgs: vec!(msgs.0),
- commitment_msg: msgs.1,
+ origin_node.node.send_payment(route, our_payment_hash).unwrap();
+ {
+ let mut added_monitors = origin_node.chan_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ added_monitors.clear();
}
+
+ let mut events = origin_node.node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ SendEvent::from_event(events.remove(0))
};
let mut prev_node = origin_node;
};
node.node.channel_state.lock().unwrap().next_forward = Instant::now();
- node.node.process_pending_htlc_forward();
+ node.node.process_pending_htlc_forwards();
let mut events_2 = node.node.get_and_clear_pending_events();
assert_eq!(events_2.len(), 1);
_ => panic!("Unexpected event"),
}
} else {
- for event in events_2.drain(..) {
- payment_event = SendEvent::from_event(event);
+ {
+ let mut added_monitors = node.chan_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ added_monitors.clear();
}
+ payment_event = SendEvent::from_event(events_2.remove(0));
assert_eq!(payment_event.msgs.len(), 1);
}
let mut next_msgs: Option<(msgs::UpdateFulfillHTLC, msgs::CommitmentSigned)> = None;
macro_rules! update_fulfill_dance {
- ($node: expr, $prev_node: expr) => {
+ ($node: expr, $prev_node: expr, $last_node: expr) => {
{
$node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0).unwrap();
+ {
+ let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
+ if $last_node {
+ assert_eq!(added_monitors.len(), 0);
+ } else {
+ assert_eq!(added_monitors.len(), 1);
+ }
+ added_monitors.clear();
+ }
let revoke_and_commit = $node.node.handle_commitment_signed(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().1).unwrap();
{
let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
- assert_eq!(added_monitors.len(), 2);
+ assert_eq!(added_monitors.len(), 1);
added_monitors.clear();
}
assert!($prev_node.node.handle_revoke_and_ack(&$node.node.get_our_node_id(), &revoke_and_commit.0).unwrap().is_none());
for node in expected_route.iter().rev() {
assert_eq!(expected_next_node, node.node.get_our_node_id());
if next_msgs.is_some() {
- update_fulfill_dance!(node, prev_node);
+ update_fulfill_dance!(node, prev_node, false);
}
let events = node.node.get_and_clear_pending_events();
}
assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
- update_fulfill_dance!(origin_node, expected_route.first().unwrap());
+ update_fulfill_dance!(origin_node, expected_route.first().unwrap(), true);
let events = origin_node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
}
}
+ const TEST_FINAL_CLTV: u32 = 32;
+
fn route_payment(origin_node: &Node, expected_route: &[&Node], recv_value: u64) -> ([u8; 32], [u8; 32]) {
- let route = origin_node.router.get_route(&expected_route.last().unwrap().node.get_our_node_id(), &Vec::new(), recv_value, 142).unwrap();
+ let route = origin_node.router.get_route(&expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV).unwrap();
assert_eq!(route.hops.len(), expected_route.len());
for (node, hop) in expected_route.iter().zip(route.hops.iter()) {
assert_eq!(hop.pubkey, node.node.get_our_node_id());
}
fn route_over_limit(origin_node: &Node, expected_route: &[&Node], recv_value: u64) {
- let route = origin_node.router.get_route(&expected_route.last().unwrap().node.get_our_node_id(), &Vec::new(), recv_value, 142).unwrap();
+ let route = origin_node.router.get_route(&expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV).unwrap();
assert_eq!(route.hops.len(), expected_route.len());
for (node, hop) in expected_route.iter().zip(route.hops.iter()) {
assert_eq!(hop.pubkey, node.node.get_our_node_id());
claim_payment(&origin, expected_route, our_payment_preimage);
}
- fn send_failed_payment(origin_node: &Node, expected_route: &[&Node]) {
- let route = origin_node.router.get_route(&expected_route.last().unwrap().node.get_our_node_id(), &Vec::new(), 1000000, 142).unwrap();
- assert_eq!(route.hops.len(), expected_route.len());
- for (node, hop) in expected_route.iter().zip(route.hops.iter()) {
- assert_eq!(hop.pubkey, node.node.get_our_node_id());
- }
- let our_payment_hash = send_along_route(origin_node, route, expected_route, 1000000).1;
-
+ fn fail_payment(origin_node: &Node, expected_route: &[&Node], our_payment_hash: [u8; 32]) {
assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash));
+ {
+ let mut added_monitors = expected_route.last().unwrap().chan_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ added_monitors.clear();
+ }
let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
macro_rules! update_fail_dance {
- ($node: expr, $prev_node: expr) => {
+ ($node: expr, $prev_node: expr, $last_node: expr) => {
{
$node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0).unwrap();
let revoke_and_commit = $node.node.handle_commitment_signed(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().1).unwrap();
+
{
let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
assert_eq!(added_monitors.len(), 1);
added_monitors.clear();
}
assert!($prev_node.node.handle_revoke_and_ack(&$node.node.get_our_node_id(), &revoke_and_commit.0).unwrap().is_none());
+ {
+ let mut added_monitors = $prev_node.chan_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ added_monitors.clear();
+ }
let revoke_and_ack = $prev_node.node.handle_commitment_signed(&$node.node.get_our_node_id(), &revoke_and_commit.1.unwrap()).unwrap();
- assert!(revoke_and_ack.1.is_none());
{
let mut added_monitors = $prev_node.chan_monitor.added_monitors.lock().unwrap();
- assert_eq!(added_monitors.len(), 2);
+ assert_eq!(added_monitors.len(), 1);
added_monitors.clear();
}
+ assert!(revoke_and_ack.1.is_none());
+ assert!($node.node.get_and_clear_pending_events().is_empty());
assert!($node.node.handle_revoke_and_ack(&$prev_node.node.get_our_node_id(), &revoke_and_ack.0).unwrap().is_none());
{
let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
- assert_eq!(added_monitors.len(), 1);
+ if $last_node {
+ assert_eq!(added_monitors.len(), 1);
+ } else {
+ assert_eq!(added_monitors.len(), 2);
+ assert!(added_monitors[0].0 != added_monitors[1].0);
+ }
added_monitors.clear();
}
}
for node in expected_route.iter().rev() {
assert_eq!(expected_next_node, node.node.get_our_node_id());
if next_msgs.is_some() {
- update_fail_dance!(node, prev_node);
+ update_fail_dance!(node, prev_node, false);
}
let events = node.node.get_and_clear_pending_events();
}
assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
- update_fail_dance!(origin_node, expected_route.first().unwrap());
+ update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
let events = origin_node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
let mut nodes = Vec::new();
let mut rng = thread_rng();
let secp_ctx = Secp256k1::new();
+ let logger: Arc<Logger> = Arc::new(test_utils::TestLogger::new());
for _ in 0..node_count {
- let feeest = Arc::new(test_utils::TestFeeEstimator { sat_per_vbyte: 1 });
- let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new());
+ let feeest = Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 });
+ let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Arc::clone(&logger)));
let tx_broadcaster = Arc::new(test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())});
let chan_monitor = Arc::new(test_utils::TestChannelMonitor::new(chain_monitor.clone(), tx_broadcaster.clone()));
let node_id = {
rng.fill_bytes(&mut key_slice);
SecretKey::from_slice(&secp_ctx, &key_slice).unwrap()
};
- let node = ChannelManager::new(node_id.clone(), 0, true, Network::Testnet, feeest.clone(), chan_monitor.clone(), chain_monitor.clone(), tx_broadcaster.clone()).unwrap();
- let router = Router::new(PublicKey::from_secret_key(&secp_ctx, &node_id).unwrap());
+ let node = ChannelManager::new(node_id.clone(), 0, true, Network::Testnet, feeest.clone(), chan_monitor.clone(), chain_monitor.clone(), tx_broadcaster.clone(), Arc::clone(&logger)).unwrap();
+ let router = Router::new(PublicKey::from_secret_key(&secp_ctx, &node_id), Arc::clone(&logger));
nodes.push(Node { feeest, chain_monitor, tx_broadcaster, chan_monitor, node_id, node, router });
}
send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1])[..], 1000000);
// Test failure packets
- send_failed_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..]);
+ let payment_hash_1 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 1000000).1;
+ fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], payment_hash_1);
// Add a new channel that skips 3
let chan_4 = create_announced_chan_between_nodes(&nodes, 1, 3);
pubkey: nodes[1].node.get_our_node_id(),
short_channel_id: chan_4.0.contents.short_channel_id,
fee_msat: 1000000,
- cltv_expiry_delta: 142,
+ cltv_expiry_delta: TEST_FINAL_CLTV,
});
hops[1].fee_msat = chan_4.1.contents.fee_base_msat as u64 + chan_4.1.contents.fee_proportional_millionths as u64 * hops[2].fee_msat as u64 / 1000000;
hops[0].fee_msat = chan_3.0.contents.fee_base_msat as u64 + chan_3.0.contents.fee_proportional_millionths as u64 * hops[1].fee_msat as u64 / 1000000;
pubkey: nodes[1].node.get_our_node_id(),
short_channel_id: chan_2.0.contents.short_channel_id,
fee_msat: 1000000,
- cltv_expiry_delta: 142,
+ cltv_expiry_delta: TEST_FINAL_CLTV,
});
hops[1].fee_msat = chan_2.1.contents.fee_base_msat as u64 + chan_2.1.contents.fee_proportional_millionths as u64 * hops[2].fee_msat as u64 / 1000000;
hops[0].fee_msat = chan_3.1.contents.fee_base_msat as u64 + chan_3.1.contents.fee_proportional_millionths as u64 * hops[1].fee_msat as u64 / 1000000;
- let payment_preimage_2 = send_along_route(&nodes[1], Route { hops }, &vec!(&nodes[3], &nodes[2], &nodes[1])[..], 1000000).0;
+ let payment_hash_2 = send_along_route(&nodes[1], Route { hops }, &vec!(&nodes[3], &nodes[2], &nodes[1])[..], 1000000).1;
// Claim the rebalances...
- claim_payment(&nodes[1], &vec!(&nodes[3], &nodes[2], &nodes[1])[..], payment_preimage_2);
+ fail_payment(&nodes[1], &vec!(&nodes[3], &nodes[2], &nodes[1])[..], payment_hash_2);
claim_payment(&nodes[1], &vec!(&nodes[2], &nodes[3], &nodes[1])[..], payment_preimage_1);
// Add a duplicate new channel from 2 to 4
assert_eq!(node.chan_monitor.added_monitors.lock().unwrap().len(), 0);
}
}
+
+ #[derive(PartialEq)]
+ enum HTLCType { NONE, TIMEOUT, SUCCESS }
+ fn test_txn_broadcast(node: &Node, chan: &(msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction), commitment_tx: Option<Transaction>, has_htlc_tx: HTLCType) -> Vec<Transaction> {
+ let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
+
+ let mut res = Vec::with_capacity(2);
+
+ if let Some(explicit_tx) = commitment_tx {
+ res.push(explicit_tx.clone());
+ } else {
+ for tx in node_txn.iter() {
+ if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
+ let mut funding_tx_map = HashMap::new();
+ funding_tx_map.insert(chan.3.txid(), chan.3.clone());
+ tx.verify(&funding_tx_map).unwrap();
+ res.push(tx.clone());
+ }
+ }
+ }
+ assert_eq!(res.len(), 1);
+
+ if has_htlc_tx != HTLCType::NONE {
+ for tx in node_txn.iter() {
+ if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
+ let mut funding_tx_map = HashMap::new();
+ funding_tx_map.insert(res[0].txid(), res[0].clone());
+ tx.verify(&funding_tx_map).unwrap();
+ if has_htlc_tx == HTLCType::TIMEOUT {
+ assert!(tx.lock_time != 0);
+ } else {
+ assert!(tx.lock_time == 0);
+ }
+ res.push(tx.clone());
+ break;
+ }
+ }
+ assert_eq!(res.len(), 2);
+ }
+ node_txn.clear();
+ res
+ }
+
+ fn check_preimage_claim(node: &Node, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
+ let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
+
+ assert!(node_txn.len() >= 1);
+ assert_eq!(node_txn[0].input.len(), 1);
+ let mut found_prev = false;
+
+ for tx in prev_txn {
+ if node_txn[0].input[0].previous_output.txid == tx.txid() {
+ let mut funding_tx_map = HashMap::new();
+ funding_tx_map.insert(tx.txid(), tx.clone());
+ node_txn[0].verify(&funding_tx_map).unwrap();
+
+ assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
+ assert_eq!(tx.input.len(), 1); // must spend a commitment tx
+
+ found_prev = true;
+ break;
+ }
+ }
+ assert!(found_prev);
+
+ let mut res = Vec::new();
+ mem::swap(&mut *node_txn, &mut res);
+ res
+ }
+
+ fn get_announce_close_broadcast_events(nodes: &Vec<Node>, a: usize, b: usize) {
+ let events_1 = nodes[a].node.get_and_clear_pending_events();
+ assert_eq!(events_1.len(), 1);
+ let as_update = match events_1[0] {
+ Event::BroadcastChannelUpdate { ref msg } => {
+ msg.clone()
+ },
+ _ => panic!("Unexpected event"),
+ };
+
+ let events_2 = nodes[b].node.get_and_clear_pending_events();
+ assert_eq!(events_2.len(), 1);
+ let bs_update = match events_2[0] {
+ Event::BroadcastChannelUpdate { ref msg } => {
+ msg.clone()
+ },
+ _ => panic!("Unexpected event"),
+ };
+
+ for node in nodes {
+ node.router.handle_channel_update(&as_update).unwrap();
+ node.router.handle_channel_update(&bs_update).unwrap();
+ }
+ }
+
+ #[test]
+ fn channel_monitor_network_test() {
+ // Simple test which builds a network of ChannelManagers, connects them to each other, and
+ // tests that ChannelMonitor is able to recover from various states.
+ let nodes = create_network(5);
+
+ // Create some initial channels
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
+ let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
+ let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3);
+ let chan_4 = create_announced_chan_between_nodes(&nodes, 3, 4);
+
+ // Rebalance the network a bit by relaying one payment through all the channels...
+ send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000);
+ send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000);
+ send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000);
+ send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000);
+
+ // Simple case with no pending HTLCs:
+ nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), true);
+ {
+ let mut node_txn = test_txn_broadcast(&nodes[1], &chan_1, None, HTLCType::NONE);
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn.drain(..).next().unwrap()] }, 1);
+ test_txn_broadcast(&nodes[0], &chan_1, None, HTLCType::NONE);
+ }
+ get_announce_close_broadcast_events(&nodes, 0, 1);
+ assert_eq!(nodes[0].node.list_channels().len(), 0);
+ assert_eq!(nodes[1].node.list_channels().len(), 1);
+
+ // One pending HTLC is discarded by the force-close:
+ let payment_preimage_1 = route_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 3000000).0;
+
+ // Simple case of one pending HTLC to HTLC-Timeout
+ nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), true);
+ {
+ let mut node_txn = test_txn_broadcast(&nodes[1], &chan_2, None, HTLCType::TIMEOUT);
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[2].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn.drain(..).next().unwrap()] }, 1);
+ test_txn_broadcast(&nodes[2], &chan_2, None, HTLCType::NONE);
+ }
+ get_announce_close_broadcast_events(&nodes, 1, 2);
+ assert_eq!(nodes[1].node.list_channels().len(), 0);
+ assert_eq!(nodes[2].node.list_channels().len(), 1);
+
+ macro_rules! claim_funds {
+ ($node: expr, $prev_node: expr, $preimage: expr) => {
+ {
+ assert!($node.node.claim_funds($preimage));
+ {
+ let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ added_monitors.clear();
+ }
+
+ let events = $node.node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ Event::SendFulfillHTLC { ref node_id, .. } => {
+ assert_eq!(*node_id, $prev_node.node.get_our_node_id());
+ },
+ _ => panic!("Unexpected event"),
+ };
+ }
+ }
+ }
+
+ // nodes[3] gets the preimage, but nodes[2] already disconnected, resulting in a nodes[2]
+ // HTLC-Timeout and a nodes[3] claim against it (+ its own announces)
+ nodes[2].node.peer_disconnected(&nodes[3].node.get_our_node_id(), true);
+ {
+ let node_txn = test_txn_broadcast(&nodes[2], &chan_3, None, HTLCType::TIMEOUT);
+
+ // Claim the payment on nodes[3], giving it knowledge of the preimage
+ claim_funds!(nodes[3], nodes[2], payment_preimage_1);
+
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[3].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn[0].clone()] }, 1);
+
+ check_preimage_claim(&nodes[3], &node_txn);
+ }
+ get_announce_close_broadcast_events(&nodes, 2, 3);
+ assert_eq!(nodes[2].node.list_channels().len(), 0);
+ assert_eq!(nodes[3].node.list_channels().len(), 1);
+
+ // One pending HTLC to time out:
+ let payment_preimage_2 = route_payment(&nodes[3], &vec!(&nodes[4])[..], 3000000).0;
+
+ {
+ let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[3].chain_monitor.block_connected_checked(&header, 1, &Vec::new()[..], &[0; 0]);
+ for i in 2..TEST_FINAL_CLTV - 3 {
+ header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[3].chain_monitor.block_connected_checked(&header, i, &Vec::new()[..], &[0; 0]);
+ }
+
+ let node_txn = test_txn_broadcast(&nodes[3], &chan_4, None, HTLCType::TIMEOUT);
+
+ // Claim the payment on nodes[3], giving it knowledge of the preimage
+ claim_funds!(nodes[4], nodes[3], payment_preimage_2);
+
+ header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[4].chain_monitor.block_connected_checked(&header, 1, &Vec::new()[..], &[0; 0]);
+ for i in 2..TEST_FINAL_CLTV - 3 {
+ header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[4].chain_monitor.block_connected_checked(&header, i, &Vec::new()[..], &[0; 0]);
+ }
+
+ test_txn_broadcast(&nodes[4], &chan_4, None, HTLCType::SUCCESS);
+
+ header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[4].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn[0].clone()] }, TEST_FINAL_CLTV - 5);
+
+ check_preimage_claim(&nodes[4], &node_txn);
+ }
+ get_announce_close_broadcast_events(&nodes, 3, 4);
+ assert_eq!(nodes[3].node.list_channels().len(), 0);
+ assert_eq!(nodes[4].node.list_channels().len(), 0);
+
+ // Create some new channels:
+ let chan_5 = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ // A pending HTLC which will be revoked:
+ let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
+ // Get the will-be-revoked local txn from nodes[0]
+ let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.iter().next().unwrap().1.last_local_commitment_txn.clone();
+ // Revoke the old state
+ claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3);
+
+ {
+ let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
+ {
+ let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn.len(), 2);
+ assert_eq!(node_txn[0].input.len(), 1);
+
+ let mut funding_tx_map = HashMap::new();
+ funding_tx_map.insert(revoked_local_txn[0].txid(), revoked_local_txn[0].clone());
+ node_txn[0].verify(&funding_tx_map).unwrap();
+ node_txn.swap_remove(0);
+ }
+ test_txn_broadcast(&nodes[1], &chan_5, None, HTLCType::NONE);
+
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
+ let node_txn = test_txn_broadcast(&nodes[0], &chan_5, Some(revoked_local_txn[0].clone()), HTLCType::TIMEOUT);
+ header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn[1].clone()] }, 1);
+
+ //TODO: At this point nodes[1] should claim the revoked HTLC-Timeout output, but that's
+ //not yet implemented in ChannelMonitor
+ }
+ get_announce_close_broadcast_events(&nodes, 0, 1);
+ assert_eq!(nodes[0].node.list_channels().len(), 0);
+ assert_eq!(nodes[1].node.list_channels().len(), 0);
+
+ // Check that we processed all pending events
+ for node in nodes {
+ assert_eq!(node.node.get_and_clear_pending_events().len(), 0);
+ assert_eq!(node.chan_monitor.added_monitors.lock().unwrap().len(), 0);
+ }
+ }
+
+ #[test]
+ fn test_unconf_chan() {
+ // After creating a chan between nodes, we disconnect all blocks previously seen to force a channel close on nodes[0] side
+ let nodes = create_network(2);
+ create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ let channel_state = nodes[0].node.channel_state.lock().unwrap();
+ assert_eq!(channel_state.by_id.len(), 1);
+ assert_eq!(channel_state.short_to_id.len(), 1);
+ mem::drop(channel_state);
+
+ let mut headers = Vec::new();
+ let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ headers.push(header.clone());
+ for _i in 2..100 {
+ header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ headers.push(header.clone());
+ }
+ while !headers.is_empty() {
+ nodes[0].node.block_disconnected(&headers.pop().unwrap());
+ }
+ let channel_state = nodes[0].node.channel_state.lock().unwrap();
+ assert_eq!(channel_state.by_id.len(), 0);
+ assert_eq!(channel_state.short_to_id.len(), 0);
+ }
}
projects / rust-lightning / blobdiff