X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Fln%2Fchannelmanager.rs;h=64a9f2ebb8e575c3895d77efd3ab4eaa1b82ccf0;hb=963f002056d86365447dc1ce244251a449df5b6d;hp=632ae9f037ea6c88451f202029987d5dde723748;hpb=6cf8158519e1e7ef94185b88f91c3f897bc09431;p=rust-lightning diff --git a/src/ln/channelmanager.rs b/src/ln/channelmanager.rs index 632ae9f0..64a9f2eb 100644 --- a/src/ln/channelmanager.rs +++ b/src/ln/channelmanager.rs @@ -12,35 +12,36 @@ use bitcoin::blockdata::block::BlockHeader; use bitcoin::blockdata::transaction::Transaction; use bitcoin::blockdata::constants::genesis_block; use bitcoin::network::constants::Network; -use bitcoin::util::hash::{BitcoinHash, Sha256dHash}; +use bitcoin::util::hash::BitcoinHash; use bitcoin_hashes::{Hash, HashEngine}; use bitcoin_hashes::hmac::{Hmac, HmacEngine}; use bitcoin_hashes::sha256::Hash as Sha256; +use bitcoin_hashes::sha256d::Hash as Sha256dHash; use bitcoin_hashes::cmp::fixed_time_eq; use secp256k1::key::{SecretKey,PublicKey}; -use secp256k1::{Secp256k1,Message}; +use secp256k1::Secp256k1; use secp256k1::ecdh::SharedSecret; use secp256k1; use chain::chaininterface::{BroadcasterInterface,ChainListener,ChainWatchInterface,FeeEstimator}; use chain::transaction::OutPoint; use ln::channel::{Channel, ChannelError}; -use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, ManyChannelMonitor, CLTV_CLAIM_BUFFER, HTLC_FAIL_TIMEOUT_BLOCKS, HTLC_FAIL_ANTI_REORG_DELAY}; -use ln::router::{Route,RouteHop}; +use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, ManyChannelMonitor, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY}; +use ln::router::Route; use ln::msgs; +use ln::onion_utils; use ln::msgs::{ChannelMessageHandler, DecodeError, HandleError}; use chain::keysinterface::KeysInterface; use util::config::UserConfig; -use util::{byte_utils, events, internal_traits, rng}; +use util::{byte_utils, events, rng}; use util::ser::{Readable, ReadableArgs, Writeable, Writer}; use util::chacha20::ChaCha20; use util::logger::Logger; use util::errors::APIError; -use util::errors; -use std::{cmp, ptr, mem}; +use std::{cmp, mem}; use std::collections::{HashMap, hash_map, HashSet}; use std::io::Cursor; use std::sync::{Arc, Mutex, MutexGuard, RwLock}; @@ -66,8 +67,8 @@ pub(super) struct PendingForwardHTLCInfo { incoming_shared_secret: [u8; 32], payment_hash: PaymentHash, short_channel_id: u64, - amt_to_forward: u64, - outgoing_cltv_value: u32, + pub(super) amt_to_forward: u64, + pub(super) outgoing_cltv_value: u32, } #[derive(Clone)] // See Channel::revoke_and_ack for why, tl;dr: Rust bug @@ -108,7 +109,7 @@ impl HTLCSource { pub fn dummy() -> Self { HTLCSource::OutboundRoute { route: Route { hops: Vec::new() }, - session_priv: SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[1; 32]).unwrap(), + session_priv: SecretKey::from_slice(&[1; 32]).unwrap(), first_hop_htlc_msat: 0, } } @@ -161,6 +162,16 @@ impl MsgHandleErrInternal { } } #[inline] + fn ignore_no_close(err: &'static str) -> Self { + Self { + err: HandleError { + err, + action: Some(msgs::ErrorAction::IgnoreError), + }, + shutdown_finish: None, + } + } + #[inline] fn from_no_close(err: msgs::HandleError) -> Self { Self { err, shutdown_finish: None } } @@ -208,10 +219,16 @@ impl MsgHandleErrInternal { /// probably increase this significantly. const MIN_HTLC_RELAY_HOLDING_CELL_MILLIS: u32 = 50; -struct HTLCForwardInfo { - prev_short_channel_id: u64, - prev_htlc_id: u64, - forward_info: PendingForwardHTLCInfo, +pub(super) enum HTLCForwardInfo { + AddHTLC { + prev_short_channel_id: u64, + prev_htlc_id: u64, + forward_info: PendingForwardHTLCInfo, + }, + FailHTLC { + htlc_id: u64, + err_packet: msgs::OnionErrorPacket, + }, } /// For events which result in both a RevokeAndACK and a CommitmentUpdate, by default they should @@ -226,33 +243,36 @@ pub(super) enum RAACommitmentOrder { RevokeAndACKFirst, } -struct ChannelHolder { - by_id: HashMap<[u8; 32], Channel>, - short_to_id: HashMap, - next_forward: Instant, +// Note this is only exposed in cfg(test): +pub(super) struct ChannelHolder { + pub(super) by_id: HashMap<[u8; 32], Channel>, + pub(super) short_to_id: HashMap, + pub(super) 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 + /// guarantees are made about the existence of a channel with the short id here, nor the short /// ids in the PendingForwardHTLCInfo! - forward_htlcs: HashMap>, + pub(super) forward_htlcs: HashMap>, + /// payment_hash -> Vec<(amount_received, htlc_source)> for tracking things that were to us and + /// can be failed/claimed by the user /// 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>, + pub(super) claimable_htlcs: HashMap>, /// Messages to send to peers - pushed to in the same lock that they are generated in (except /// for broadcast messages, where ordering isn't as strict). - pending_msg_events: Vec, + pub(super) pending_msg_events: Vec, } -struct MutChannelHolder<'a> { - by_id: &'a mut HashMap<[u8; 32], Channel>, - short_to_id: &'a mut HashMap, - next_forward: &'a mut Instant, - forward_htlcs: &'a mut HashMap>, - claimable_htlcs: &'a mut HashMap>, - pending_msg_events: &'a mut Vec, +pub(super) struct MutChannelHolder<'a> { + pub(super) by_id: &'a mut HashMap<[u8; 32], Channel>, + pub(super) short_to_id: &'a mut HashMap, + pub(super) next_forward: &'a mut Instant, + pub(super) forward_htlcs: &'a mut HashMap>, + pub(super) claimable_htlcs: &'a mut HashMap>, + pub(super) pending_msg_events: &'a mut Vec, } impl ChannelHolder { - fn borrow_parts(&mut self) -> MutChannelHolder { + pub(super) fn borrow_parts(&mut self) -> MutChannelHolder { MutChannelHolder { by_id: &mut self.by_id, short_to_id: &mut self.short_to_id, @@ -299,10 +319,16 @@ pub struct ChannelManager { chain_monitor: Arc, tx_broadcaster: Arc, + #[cfg(test)] + pub(super) latest_block_height: AtomicUsize, + #[cfg(not(test))] latest_block_height: AtomicUsize, last_block_hash: Mutex, secp_ctx: Secp256k1, + #[cfg(test)] + pub(super) channel_state: Mutex, + #[cfg(not(test))] channel_state: Mutex, our_network_key: SecretKey, @@ -321,24 +347,25 @@ pub struct ChannelManager { /// HTLC's CLTV. This should always be a few blocks greater than channelmonitor::CLTV_CLAIM_BUFFER, /// ie the node we forwarded the payment on to should always have enough room to reliably time out /// the HTLC via a full update_fail_htlc/commitment_signed dance before we hit the -/// CLTV_CLAIM_BUFFER point (we static assert that its at least 3 blocks more). +/// CLTV_CLAIM_BUFFER point (we static assert that it's at least 3 blocks more). const CLTV_EXPIRY_DELTA: u16 = 6 * 12; //TODO? -const CLTV_FAR_FAR_AWAY: u32 = 6 * 24 * 7; //TODO? - -// Check that our CLTV_EXPIRY is at least CLTV_CLAIM_BUFFER + 2*HTLC_FAIL_TIMEOUT_BLOCKS + -// HTLC_FAIL_ANTI_REORG_DELAY, ie that if the next-hop peer fails the HTLC within -// HTLC_FAIL_TIMEOUT_BLOCKS then we'll still have HTLC_FAIL_TIMEOUT_BLOCKS left to fail it -// backwards ourselves before hitting the CLTV_CLAIM_BUFFER point and failing the channel -// on-chain to time out the HTLC. +pub(super) const CLTV_FAR_FAR_AWAY: u32 = 6 * 24 * 7; //TODO? + +// Check that our CLTV_EXPIRY is at least CLTV_CLAIM_BUFFER + ANTI_REORG_DELAY + LATENCY_GRACE_PERIOD_BLOCKS, +// ie that if the next-hop peer fails the HTLC within +// LATENCY_GRACE_PERIOD_BLOCKS then we'll still have CLTV_CLAIM_BUFFER left to timeout it onchain, +// then waiting ANTI_REORG_DELAY to be reorg-safe on the outbound HLTC and +// failing the corresponding htlc backward, and us now seeing the last block of ANTI_REORG_DELAY before +// LATENCY_GRACE_PERIOD_BLOCKS. #[deny(const_err)] #[allow(dead_code)] -const CHECK_CLTV_EXPIRY_SANITY: u32 = CLTV_EXPIRY_DELTA as u32 - 2*HTLC_FAIL_TIMEOUT_BLOCKS - CLTV_CLAIM_BUFFER - HTLC_FAIL_ANTI_REORG_DELAY; +const CHECK_CLTV_EXPIRY_SANITY: u32 = CLTV_EXPIRY_DELTA as u32 - LATENCY_GRACE_PERIOD_BLOCKS - CLTV_CLAIM_BUFFER - ANTI_REORG_DELAY - LATENCY_GRACE_PERIOD_BLOCKS; // Check for ability of an attacker to make us fail on-chain by delaying inbound claim. See // ChannelMontior::would_broadcast_at_height for a description of why this is needed. #[deny(const_err)] #[allow(dead_code)] -const CHECK_CLTV_EXPIRY_SANITY_2: u32 = CLTV_EXPIRY_DELTA as u32 - HTLC_FAIL_TIMEOUT_BLOCKS - 2*CLTV_CLAIM_BUFFER; +const CHECK_CLTV_EXPIRY_SANITY_2: u32 = CLTV_EXPIRY_DELTA as u32 - LATENCY_GRACE_PERIOD_BLOCKS - 2*CLTV_CLAIM_BUFFER; macro_rules! secp_call { ( $res: expr, $err: expr ) => { @@ -349,16 +376,6 @@ macro_rules! secp_call { }; } -struct OnionKeys { - #[cfg(test)] - shared_secret: SharedSecret, - #[cfg(test)] - blinding_factor: [u8; 32], - ephemeral_pubkey: PublicKey, - rho: [u8; 32], - mu: [u8; 32], -} - /// Details of a channel, as returned by ChannelManager::list_channels and ChannelManager::list_usable_channels pub struct ChannelDetails { /// The channel's ID (prior to funding transaction generation, this is a random 32 bytes, @@ -378,7 +395,7 @@ pub struct ChannelDetails { } macro_rules! handle_error { - ($self: ident, $internal: expr, $their_node_id: expr) => { + ($self: ident, $internal: expr) => { match $internal { Ok(msg) => Ok(msg), Err(MsgHandleErrInternal { err, shutdown_finish }) => { @@ -435,20 +452,14 @@ macro_rules! try_chan_entry { } } -macro_rules! return_monitor_err { - ($self: expr, $err: expr, $channel_state: expr, $entry: expr, $action_type: path) => { - return_monitor_err!($self, $err, $channel_state, $entry, $action_type, Vec::new(), Vec::new()) - }; - ($self: expr, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $raa_first_dropped_cs: expr) => { - if $action_type != RAACommitmentOrder::RevokeAndACKFirst { panic!("Bad return_monitor_err call!"); } - return_monitor_err!($self, $err, $channel_state, $entry, $action_type, Vec::new(), Vec::new(), $raa_first_dropped_cs) - }; - ($self: expr, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $failed_forwards: expr, $failed_fails: expr) => { - return_monitor_err!($self, $err, $channel_state, $entry, $action_type, $failed_forwards, $failed_fails, false) +macro_rules! handle_monitor_err { + ($self: ident, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $resend_raa: expr, $resend_commitment: expr) => { + handle_monitor_err!($self, $err, $channel_state, $entry, $action_type, $resend_raa, $resend_commitment, Vec::new(), Vec::new()) }; - ($self: expr, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $failed_forwards: expr, $failed_fails: expr, $raa_first_dropped_cs: expr) => { + ($self: ident, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $resend_raa: expr, $resend_commitment: expr, $failed_forwards: expr, $failed_fails: expr) => { match $err { ChannelMonitorUpdateErr::PermanentFailure => { + log_error!($self, "Closing channel {} due to monitor update PermanentFailure", log_bytes!($entry.key()[..])); let (channel_id, mut chan) = $entry.remove_entry(); if let Some(short_id) = chan.get_short_channel_id() { $channel_state.short_to_id.remove(&short_id); @@ -462,30 +473,52 @@ macro_rules! return_monitor_err { // splitting hairs we'd prefer to claim payments that were to us, but we haven't // given up the preimage yet, so might as well just wait until the payment is // retried, avoiding the on-chain fees. - return Err(MsgHandleErrInternal::from_finish_shutdown("ChannelMonitor storage failure", channel_id, chan.force_shutdown(), $self.get_channel_update(&chan).ok())) + let res: Result<(), _> = Err(MsgHandleErrInternal::from_finish_shutdown("ChannelMonitor storage failure", channel_id, chan.force_shutdown(), $self.get_channel_update(&chan).ok())); + res }, ChannelMonitorUpdateErr::TemporaryFailure => { - $entry.get_mut().monitor_update_failed($action_type, $failed_forwards, $failed_fails, $raa_first_dropped_cs); - return Err(MsgHandleErrInternal::from_chan_no_close(ChannelError::Ignore("Failed to update ChannelMonitor"), *$entry.key())); + log_info!($self, "Disabling channel {} due to monitor update TemporaryFailure. On restore will send {} and process {} forwards and {} fails", + log_bytes!($entry.key()[..]), + if $resend_commitment && $resend_raa { + match $action_type { + RAACommitmentOrder::CommitmentFirst => { "commitment then RAA" }, + RAACommitmentOrder::RevokeAndACKFirst => { "RAA then commitment" }, + } + } else if $resend_commitment { "commitment" } + else if $resend_raa { "RAA" } + else { "nothing" }, + (&$failed_forwards as &Vec<(PendingForwardHTLCInfo, u64)>).len(), + (&$failed_fails as &Vec<(HTLCSource, PaymentHash, HTLCFailReason)>).len()); + if !$resend_commitment { + debug_assert!($action_type == RAACommitmentOrder::RevokeAndACKFirst || !$resend_raa); + } + if !$resend_raa { + debug_assert!($action_type == RAACommitmentOrder::CommitmentFirst || !$resend_commitment); + } + $entry.get_mut().monitor_update_failed($resend_raa, $resend_commitment, $failed_forwards, $failed_fails); + Err(MsgHandleErrInternal::from_chan_no_close(ChannelError::Ignore("Failed to update ChannelMonitor"), *$entry.key())) }, } } } +macro_rules! return_monitor_err { + ($self: ident, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $resend_raa: expr, $resend_commitment: expr) => { + return handle_monitor_err!($self, $err, $channel_state, $entry, $action_type, $resend_raa, $resend_commitment); + }; + ($self: ident, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $resend_raa: expr, $resend_commitment: expr, $failed_forwards: expr, $failed_fails: expr) => { + return handle_monitor_err!($self, $err, $channel_state, $entry, $action_type, $resend_raa, $resend_commitment, $failed_forwards, $failed_fails); + } +} + // Does not break in case of TemporaryFailure! macro_rules! maybe_break_monitor_err { - ($self: expr, $err: expr, $channel_state: expr, $entry: expr, $action_type: path) => { - match $err { - ChannelMonitorUpdateErr::PermanentFailure => { - let (channel_id, mut chan) = $entry.remove_entry(); - if let Some(short_id) = chan.get_short_channel_id() { - $channel_state.short_to_id.remove(&short_id); - } - break Err(MsgHandleErrInternal::from_finish_shutdown("ChannelMonitor storage failure", channel_id, chan.force_shutdown(), $self.get_channel_update(&chan).ok())) - }, - ChannelMonitorUpdateErr::TemporaryFailure => { - $entry.get_mut().monitor_update_failed($action_type, Vec::new(), Vec::new(), false); + ($self: ident, $err: expr, $channel_state: expr, $entry: expr, $action_type: path, $resend_raa: expr, $resend_commitment: expr) => { + match (handle_monitor_err!($self, $err, $channel_state, $entry, $action_type, $resend_raa, $resend_commitment), $err) { + (e, ChannelMonitorUpdateErr::PermanentFailure) => { + break e; }, + (_, ChannelMonitorUpdateErr::TemporaryFailure) => { }, } } } @@ -708,240 +741,7 @@ impl ChannelManager { } } - #[inline] - fn gen_rho_mu_from_shared_secret(shared_secret: &[u8]) -> ([u8; 32], [u8; 32]) { - assert_eq!(shared_secret.len(), 32); - ({ - let mut hmac = HmacEngine::::new(&[0x72, 0x68, 0x6f]); // rho - hmac.input(&shared_secret[..]); - Hmac::from_engine(hmac).into_inner() - }, - { - let mut hmac = HmacEngine::::new(&[0x6d, 0x75]); // mu - hmac.input(&shared_secret[..]); - Hmac::from_engine(hmac).into_inner() - }) - } - - #[inline] - fn gen_um_from_shared_secret(shared_secret: &[u8]) -> [u8; 32] { - assert_eq!(shared_secret.len(), 32); - let mut hmac = HmacEngine::::new(&[0x75, 0x6d]); // um - hmac.input(&shared_secret[..]); - Hmac::from_engine(hmac).into_inner() - } - - #[inline] - fn gen_ammag_from_shared_secret(shared_secret: &[u8]) -> [u8; 32] { - assert_eq!(shared_secret.len(), 32); - let mut hmac = HmacEngine::::new(&[0x61, 0x6d, 0x6d, 0x61, 0x67]); // ammag - hmac.input(&shared_secret[..]); - Hmac::from_engine(hmac).into_inner() - } - - // can only fail if an intermediary hop has an invalid public key or session_priv is invalid - #[inline] - fn construct_onion_keys_callback (secp_ctx: &Secp256k1, route: &Route, session_priv: &SecretKey, mut callback: FType) -> Result<(), secp256k1::Error> { - let mut blinded_priv = session_priv.clone(); - let mut blinded_pub = PublicKey::from_secret_key(secp_ctx, &blinded_priv); - - for hop in route.hops.iter() { - let shared_secret = SharedSecret::new(secp_ctx, &hop.pubkey, &blinded_priv); - - let mut sha = Sha256::engine(); - sha.input(&blinded_pub.serialize()[..]); - sha.input(&shared_secret[..]); - let blinding_factor = Sha256::from_engine(sha).into_inner(); - - let ephemeral_pubkey = blinded_pub; - - blinded_priv.mul_assign(secp_ctx, &SecretKey::from_slice(secp_ctx, &blinding_factor)?)?; - 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(secp_ctx: &Secp256k1, route: &Route, session_priv: &SecretKey) -> Result, secp256k1::Error> { - 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, - #[cfg(test)] - 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, starting_htlc_offset: u32) -> Result<(Vec, u64, u32), APIError> { - let mut cur_value_msat = 0u64; - let mut cur_cltv = starting_htlc_offset; - let mut last_short_channel_id = 0; - let mut res: Vec = Vec::with_capacity(route.hops.len()); - internal_traits::test_no_dealloc::(None); - unsafe { res.set_len(route.hops.len()); } - - for (idx, hop) in route.hops.iter().enumerate().rev() { - // First hop gets special values so that it can check, on receipt, that everything is - // 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 == starting_htlc_offset { hop.cltv_expiry_delta + starting_htlc_offset } else { cur_cltv }; - res[idx] = msgs::OnionHopData { - realm: 0, - data: msgs::OnionRealm0HopData { - short_channel_id: last_short_channel_id, - amt_to_forward: value_msat, - outgoing_cltv_value: cltv, - }, - hmac: [0; 32], - }; - cur_value_msat += hop.fee_msat; - if cur_value_msat >= 21000000 * 100000000 * 1000 { - return Err(APIError::RouteError{err: "Channel fees overflowed?!"}); - } - cur_cltv += hop.cltv_expiry_delta as u32; - if cur_cltv >= 500000000 { - return Err(APIError::RouteError{err: "Channel CLTV overflowed?!"}); - } - last_short_channel_id = hop.short_channel_id; - } - Ok((res, cur_value_msat, cur_cltv)) - } - - #[inline] - fn shift_arr_right(arr: &mut [u8; 20*65]) { - unsafe { - ptr::copy(arr[0..].as_ptr(), arr[65..].as_mut_ptr(), 19*65); - } - for i in 0..65 { - arr[i] = 0; - } - } - - #[inline] - fn xor_bufs(dst: &mut[u8], src: &[u8]) { - assert_eq!(dst.len(), src.len()); - - for i in 0..dst.len() { - dst[i] ^= src[i]; - } - } - - const ZERO:[u8; 21*65] = [0; 21*65]; - fn construct_onion_packet(mut payloads: Vec, onion_keys: Vec, associated_data: &PaymentHash) -> msgs::OnionPacket { - let mut buf = Vec::with_capacity(21*65); - buf.resize(21*65, 0); - - let filler = { - let iters = payloads.len() - 1; - let end_len = iters * 65; - let mut res = Vec::with_capacity(end_len); - res.resize(end_len, 0); - - for (i, keys) in onion_keys.iter().enumerate() { - if i == payloads.len() - 1 { continue; } - let mut chacha = ChaCha20::new(&keys.rho, &[0u8; 8]); - chacha.process(&ChannelManager::ZERO, &mut buf); // We don't have a seek function :( - ChannelManager::xor_bufs(&mut res[0..(i + 1)*65], &buf[(20 - i)*65..21*65]); - } - res - }; - - let mut packet_data = [0; 20*65]; - let mut hmac_res = [0; 32]; - - for (i, (payload, keys)) in payloads.iter_mut().zip(onion_keys.iter()).rev().enumerate() { - ChannelManager::shift_arr_right(&mut packet_data); - payload.hmac = hmac_res; - packet_data[0..65].copy_from_slice(&payload.encode()[..]); - - let mut chacha = ChaCha20::new(&keys.rho, &[0u8; 8]); - chacha.process(&packet_data, &mut buf[0..20*65]); - packet_data[..].copy_from_slice(&buf[0..20*65]); - - if i == 0 { - packet_data[20*65 - filler.len()..20*65].copy_from_slice(&filler[..]); - } - - let mut hmac = HmacEngine::::new(&keys.mu); - hmac.input(&packet_data); - hmac.input(&associated_data.0[..]); - hmac_res = Hmac::from_engine(hmac).into_inner(); - } - - msgs::OnionPacket{ - version: 0, - public_key: Ok(onion_keys.first().unwrap().ephemeral_pubkey), - hop_data: packet_data, - hmac: hmac_res, - } - } - - /// Encrypts a failure packet. raw_packet can either be a - /// msgs::DecodedOnionErrorPacket.encode() result or a msgs::OnionErrorPacket.data element. - fn encrypt_failure_packet(shared_secret: &[u8], raw_packet: &[u8]) -> msgs::OnionErrorPacket { - let ammag = ChannelManager::gen_ammag_from_shared_secret(&shared_secret); - - let mut packet_crypted = Vec::with_capacity(raw_packet.len()); - packet_crypted.resize(raw_packet.len(), 0); - let mut chacha = ChaCha20::new(&ammag, &[0u8; 8]); - chacha.process(&raw_packet, &mut packet_crypted[..]); - msgs::OnionErrorPacket { - data: packet_crypted, - } - } - - fn build_failure_packet(shared_secret: &[u8], failure_type: u16, failure_data: &[u8]) -> msgs::DecodedOnionErrorPacket { - assert_eq!(shared_secret.len(), 32); - assert!(failure_data.len() <= 256 - 2); - - let um = ChannelManager::gen_um_from_shared_secret(&shared_secret); - - let failuremsg = { - let mut res = Vec::with_capacity(2 + failure_data.len()); - res.push(((failure_type >> 8) & 0xff) as u8); - res.push(((failure_type >> 0) & 0xff) as u8); - res.extend_from_slice(&failure_data[..]); - res - }; - let pad = { - let mut res = Vec::with_capacity(256 - 2 - failure_data.len()); - res.resize(256 - 2 - failure_data.len(), 0); - res - }; - let mut packet = msgs::DecodedOnionErrorPacket { - hmac: [0; 32], - failuremsg: failuremsg, - pad: pad, - }; - - let mut hmac = HmacEngine::::new(&um); - hmac.input(&packet.encode()[32..]); - packet.hmac = Hmac::from_engine(hmac).into_inner(); - - packet - } - - #[inline] - fn build_first_hop_failure_packet(shared_secret: &[u8], failure_type: u16, failure_data: &[u8]) -> msgs::OnionErrorPacket { - let failure_packet = ChannelManager::build_failure_packet(shared_secret, failure_type, failure_data); - ChannelManager::encrypt_failure_packet(shared_secret, &failure_packet.encode()[..]) - } - + const ZERO:[u8; 65] = [0; 65]; fn decode_update_add_htlc_onion(&self, msg: &msgs::UpdateAddHTLC) -> (PendingHTLCStatus, MutexGuard) { macro_rules! return_malformed_err { ($msg: expr, $err_code: expr) => { @@ -963,22 +763,21 @@ impl ChannelManager { let shared_secret = { let mut arr = [0; 32]; - arr.copy_from_slice(&SharedSecret::new(&self.secp_ctx, &msg.onion_routing_packet.public_key.unwrap(), &self.our_network_key)[..]); + arr.copy_from_slice(&SharedSecret::new(&msg.onion_routing_packet.public_key.unwrap(), &self.our_network_key)[..]); arr }; - let (rho, mu) = ChannelManager::gen_rho_mu_from_shared_secret(&shared_secret); + let (rho, mu) = onion_utils::gen_rho_mu_from_shared_secret(&shared_secret); if msg.onion_routing_packet.version != 0 { //TODO: Spec doesn't indicate if we should only hash hop_data here (and in other //sha256_of_onion error data packets), or the entire onion_routing_packet. Either way, - //the hash doesn't really serve any purpuse - in the case of hashing all data, the + //the hash doesn't really serve any purpose - in the case of hashing all data, the //receiving node would have to brute force to figure out which version was put in the //packet by the node that send us the message, in the case of hashing the hop_data, the //node knows the HMAC matched, so they already know what is there... return_malformed_err!("Unknown onion packet version", 0x8000 | 0x4000 | 4); } - let mut hmac = HmacEngine::::new(&mu); hmac.input(&msg.onion_routing_packet.hop_data); hmac.input(&msg.payment_hash.0[..]); @@ -997,7 +796,7 @@ impl ChannelManager { return (PendingHTLCStatus::Fail(HTLCFailureMsg::Relay(msgs::UpdateFailHTLC { channel_id: msg.channel_id, htlc_id: msg.htlc_id, - reason: ChannelManager::build_first_hop_failure_packet(&shared_secret, $err_code, $data), + reason: onion_utils::build_first_hop_failure_packet(&shared_secret, $err_code, $data), })), channel_state.unwrap()); } } @@ -1022,7 +821,7 @@ impl ChannelManager { let pending_forward_info = if next_hop_data.hmac == [0; 32] { // OUR PAYMENT! // final_expiry_too_soon - if (msg.cltv_expiry as u64) < self.latest_block_height.load(Ordering::Acquire) as u64 + (CLTV_CLAIM_BUFFER + HTLC_FAIL_TIMEOUT_BLOCKS) as u64 { + if (msg.cltv_expiry as u64) < self.latest_block_height.load(Ordering::Acquire) as u64 + (CLTV_CLAIM_BUFFER + LATENCY_GRACE_PERIOD_BLOCKS) as u64 { return_err!("The final CLTV expiry is too soon to handle", 17, &[0;0]); } // final_incorrect_htlc_amount @@ -1050,7 +849,7 @@ impl ChannelManager { } else { let mut new_packet_data = [0; 20*65]; chacha.process(&msg.onion_routing_packet.hop_data[65..], &mut new_packet_data[0..19*65]); - chacha.process(&ChannelManager::ZERO[0..65], &mut new_packet_data[19*65..]); + chacha.process(&ChannelManager::ZERO[..], &mut new_packet_data[19*65..]); let mut new_pubkey = msg.onion_routing_packet.public_key.unwrap(); @@ -1058,10 +857,10 @@ impl ChannelManager { let mut sha = Sha256::engine(); sha.input(&new_pubkey.serialize()[..]); sha.input(&shared_secret); - SecretKey::from_slice(&self.secp_ctx, &Sha256::from_engine(sha).into_inner()).expect("SHA-256 is broken?") + Sha256::from_engine(sha).into_inner() }; - let public_key = if let Err(e) = new_pubkey.mul_assign(&self.secp_ctx, &blinding_factor) { + let public_key = if let Err(e) = new_pubkey.mul_assign(&self.secp_ctx, &blinding_factor[..]) { Err(e) } else { Ok(new_pubkey) }; @@ -1114,8 +913,8 @@ impl ChannelManager { break Some(("Forwarding node has tampered with the intended HTLC values or origin node has an obsolete cltv_expiry_delta", 0x1000 | 13, Some(self.get_channel_update(chan).unwrap()))); } let cur_height = self.latest_block_height.load(Ordering::Acquire) as u32 + 1; - // We want to have at least HTLC_FAIL_TIMEOUT_BLOCKS to fail prior to going on chain CLAIM_BUFFER blocks before expiration - if msg.cltv_expiry <= cur_height + CLTV_CLAIM_BUFFER + HTLC_FAIL_TIMEOUT_BLOCKS as u32 { // expiry_too_soon + // We want to have at least LATENCY_GRACE_PERIOD_BLOCKS to fail prior to going on chain CLAIM_BUFFER blocks before expiration + if msg.cltv_expiry <= cur_height + CLTV_CLAIM_BUFFER + LATENCY_GRACE_PERIOD_BLOCKS as u32 { // expiry_too_soon break Some(("CLTV expiry is too close", 0x1000 | 14, Some(self.get_channel_update(chan).unwrap()))); } if msg.cltv_expiry > cur_height + CLTV_FAR_FAR_AWAY as u32 { // expiry_too_far @@ -1167,8 +966,8 @@ impl ChannelManager { excess_data: Vec::new(), }; - let msg_hash = Sha256dHash::from_data(&unsigned.encode()[..]); - let sig = self.secp_ctx.sign(&Message::from_slice(&msg_hash[..]).unwrap(), &self.our_network_key); + let msg_hash = Sha256dHash::hash(&unsigned.encode()[..]); + let sig = self.secp_ctx.sign(&hash_to_message!(&msg_hash[..]), &self.our_network_key); Ok(msgs::ChannelUpdate { signature: sig, @@ -1217,10 +1016,10 @@ impl ChannelManager { let cur_height = self.latest_block_height.load(Ordering::Acquire) as u32 + 1; - let onion_keys = secp_call!(ChannelManager::construct_onion_keys(&self.secp_ctx, &route, &session_priv), + let onion_keys = secp_call!(onion_utils::construct_onion_keys(&self.secp_ctx, &route, &session_priv), APIError::RouteError{err: "Pubkey along hop was maliciously selected"}); - 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 (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route, cur_height)?; + let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, &payment_hash); let _ = self.total_consistency_lock.read().unwrap(); @@ -1249,7 +1048,7 @@ impl ChannelManager { } { Some((update_add, commitment_signed, chan_monitor)) => { if let Err(e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) { - maybe_break_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst); + maybe_break_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, true); // Note that MonitorUpdateFailed here indicates (per function docs) // that we will resent the commitment update once we unfree monitor // updating, so we have to take special care that we don't return @@ -1275,7 +1074,7 @@ impl ChannelManager { return Ok(()); }; - match handle_error!(self, err, route.hops.first().unwrap().pubkey) { + match handle_error!(self, err) { Ok(_) => unreachable!(), Err(e) => { if let Some(msgs::ErrorAction::IgnoreError) = e.action { @@ -1318,7 +1117,7 @@ impl ChannelManager { None => return } }; - match handle_error!(self, res, chan.get_their_node_id()) { + match handle_error!(self, res) { Ok(funding_msg) => { (chan, funding_msg.0, funding_msg.1) }, @@ -1361,7 +1160,7 @@ impl ChannelManager { Ok(res) => res, Err(_) => return None, // Only in case of state precondition violations eg channel is closing }; - let msghash = Message::from_slice(&Sha256dHash::from_data(&announcement.encode()[..])[..]).unwrap(); + let msghash = hash_to_message!(&Sha256dHash::hash(&announcement.encode()[..])[..]); let our_node_sig = self.secp_ctx.sign(&msghash, &self.our_network_key); Some(msgs::AnnouncementSignatures { @@ -1374,13 +1173,14 @@ impl ChannelManager { /// Processes HTLCs which are pending waiting on random forward delay. /// - /// Should only really ever be called in response to an PendingHTLCsForwardable event. + /// Should only really ever be called in response to a PendingHTLCsForwardable event. /// Will likely generate further events. pub fn process_pending_htlc_forwards(&self) { let _ = self.total_consistency_lock.read().unwrap(); let mut new_events = Vec::new(); let mut failed_forwards = Vec::new(); + let mut handle_errors = Vec::new(); { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = channel_state_lock.borrow_parts(); @@ -1395,90 +1195,148 @@ impl ChannelManager { Some(chan_id) => chan_id.clone(), None => { failed_forwards.reserve(pending_forwards.len()); - for HTLCForwardInfo { prev_short_channel_id, prev_htlc_id, forward_info } in pending_forwards.drain(..) { - let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData { - short_channel_id: prev_short_channel_id, - htlc_id: prev_htlc_id, - incoming_packet_shared_secret: forward_info.incoming_shared_secret, - }); - failed_forwards.push((htlc_source, forward_info.payment_hash, 0x4000 | 10, None)); + for forward_info in pending_forwards.drain(..) { + match forward_info { + HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info } => { + let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData { + short_channel_id: prev_short_channel_id, + htlc_id: prev_htlc_id, + incoming_packet_shared_secret: forward_info.incoming_shared_secret, + }); + failed_forwards.push((htlc_source, forward_info.payment_hash, 0x4000 | 10, None)); + }, + HTLCForwardInfo::FailHTLC { .. } => { + // Channel went away before we could fail it. This implies + // the channel is now on chain and our counterparty is + // trying to broadcast the HTLC-Timeout, but that's their + // problem, not ours. + } + } } continue; } }; - let forward_chan = &mut channel_state.by_id.get_mut(&forward_chan_id).unwrap(); - - let mut add_htlc_msgs = Vec::new(); - for HTLCForwardInfo { prev_short_channel_id, prev_htlc_id, forward_info } in pending_forwards.drain(..) { - let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData { - short_channel_id: prev_short_channel_id, - htlc_id: prev_htlc_id, - incoming_packet_shared_secret: forward_info.incoming_shared_secret, - }); - match forward_chan.send_htlc(forward_info.amt_to_forward, forward_info.payment_hash, forward_info.outgoing_cltv_value, htlc_source.clone(), forward_info.onion_packet.unwrap()) { - Err(_e) => { - let chan_update = self.get_channel_update(forward_chan).unwrap(); - failed_forwards.push((htlc_source, forward_info.payment_hash, 0x1000 | 7, Some(chan_update))); - continue; - }, - Ok(update_add) => { - match update_add { - Some(msg) => { add_htlc_msgs.push(msg); }, - None => { - // Nothing to do here...we're waiting on a remote - // revoke_and_ack before we can add anymore HTLCs. The Channel - // will automatically handle building the update_add_htlc and - // commitment_signed messages when we can. - // TODO: Do some kind of timer to set the channel as !is_live() - // as we don't really want others relying on us relaying through - // this channel currently :/. + if let hash_map::Entry::Occupied(mut chan) = channel_state.by_id.entry(forward_chan_id) { + let mut add_htlc_msgs = Vec::new(); + let mut fail_htlc_msgs = Vec::new(); + for forward_info in pending_forwards.drain(..) { + match forward_info { + HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info } => { + log_trace!(self, "Adding HTLC from short id {} with payment_hash {} to channel with short id {} after delay", log_bytes!(forward_info.payment_hash.0), prev_short_channel_id, short_chan_id); + let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData { + short_channel_id: prev_short_channel_id, + htlc_id: prev_htlc_id, + incoming_packet_shared_secret: forward_info.incoming_shared_secret, + }); + match chan.get_mut().send_htlc(forward_info.amt_to_forward, forward_info.payment_hash, forward_info.outgoing_cltv_value, htlc_source.clone(), forward_info.onion_packet.unwrap()) { + Err(e) => { + if let ChannelError::Ignore(msg) = e { + log_trace!(self, "Failed to forward HTLC with payment_hash {}: {}", log_bytes!(forward_info.payment_hash.0), msg); + } else { + panic!("Stated return value requirements in send_htlc() were not met"); + } + let chan_update = self.get_channel_update(chan.get()).unwrap(); + failed_forwards.push((htlc_source, forward_info.payment_hash, 0x1000 | 7, Some(chan_update))); + continue; + }, + Ok(update_add) => { + match update_add { + Some(msg) => { add_htlc_msgs.push(msg); }, + None => { + // Nothing to do here...we're waiting on a remote + // revoke_and_ack before we can add anymore HTLCs. The Channel + // will automatically handle building the update_add_htlc and + // commitment_signed messages when we can. + // TODO: Do some kind of timer to set the channel as !is_live() + // as we don't really want others relying on us relaying through + // this channel currently :/. + } + } + } } - } + }, + HTLCForwardInfo::FailHTLC { htlc_id, err_packet } => { + log_trace!(self, "Failing HTLC back to channel with short id {} after delay", short_chan_id); + match chan.get_mut().get_update_fail_htlc(htlc_id, err_packet) { + Err(e) => { + if let ChannelError::Ignore(msg) = e { + log_trace!(self, "Failed to fail backwards to short_id {}: {}", short_chan_id, msg); + } else { + panic!("Stated return value requirements in get_update_fail_htlc() were not met"); + } + // fail-backs are best-effort, we probably already have one + // pending, and if not that's OK, if not, the channel is on + // the chain and sending the HTLC-Timeout is their problem. + continue; + }, + Ok(Some(msg)) => { fail_htlc_msgs.push(msg); }, + Ok(None) => { + // Nothing to do here...we're waiting on a remote + // revoke_and_ack before we can update the commitment + // transaction. The Channel will automatically handle + // building the update_fail_htlc and commitment_signed + // messages when we can. + // We don't need any kind of timer here as they should fail + // the channel onto the chain if they can't get our + // update_fail_htlc in time, it's not our problem. + } + } + }, } } - } - if !add_htlc_msgs.is_empty() { - let (commitment_msg, monitor) = match forward_chan.send_commitment() { - Ok(res) => res, - Err(e) => { - if let ChannelError::Ignore(_) = e { - panic!("Stated return value requirements in send_commitment() were not met"); - } - //TODO: Handle...this is bad! + if !add_htlc_msgs.is_empty() || !fail_htlc_msgs.is_empty() { + let (commitment_msg, monitor) = match chan.get_mut().send_commitment() { + Ok(res) => res, + Err(e) => { + if let ChannelError::Ignore(_) = e { + panic!("Stated return value requirements in send_commitment() were not met"); + } + //TODO: Handle...this is bad! + continue; + }, + }; + if let Err(e) = self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor) { + handle_errors.push((chan.get().get_their_node_id(), handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, true))); continue; - }, - }; - if let Err(_e) = self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor) { - unimplemented!(); + } + channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + node_id: chan.get().get_their_node_id(), + updates: msgs::CommitmentUpdate { + update_add_htlcs: add_htlc_msgs, + update_fulfill_htlcs: Vec::new(), + update_fail_htlcs: fail_htlc_msgs, + update_fail_malformed_htlcs: Vec::new(), + update_fee: None, + commitment_signed: commitment_msg, + }, + }); } - channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { - node_id: forward_chan.get_their_node_id(), - updates: msgs::CommitmentUpdate { - update_add_htlcs: add_htlc_msgs, - update_fulfill_htlcs: Vec::new(), - update_fail_htlcs: Vec::new(), - update_fail_malformed_htlcs: Vec::new(), - update_fee: None, - commitment_signed: commitment_msg, - }, - }); + } else { + unreachable!(); } } else { - for HTLCForwardInfo { prev_short_channel_id, prev_htlc_id, forward_info } in pending_forwards.drain(..) { - let prev_hop_data = HTLCPreviousHopData { - short_channel_id: prev_short_channel_id, - htlc_id: prev_htlc_id, - incoming_packet_shared_secret: forward_info.incoming_shared_secret, - }; - match channel_state.claimable_htlcs.entry(forward_info.payment_hash) { - hash_map::Entry::Occupied(mut entry) => entry.get_mut().push(prev_hop_data), - hash_map::Entry::Vacant(entry) => { entry.insert(vec![prev_hop_data]); }, - }; - new_events.push(events::Event::PaymentReceived { - payment_hash: forward_info.payment_hash, - amt: forward_info.amt_to_forward, - }); + for forward_info in pending_forwards.drain(..) { + match forward_info { + HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info } => { + let prev_hop_data = HTLCPreviousHopData { + short_channel_id: prev_short_channel_id, + htlc_id: prev_htlc_id, + incoming_packet_shared_secret: forward_info.incoming_shared_secret, + }; + match channel_state.claimable_htlcs.entry(forward_info.payment_hash) { + hash_map::Entry::Occupied(mut entry) => entry.get_mut().push((forward_info.amt_to_forward, prev_hop_data)), + hash_map::Entry::Vacant(entry) => { entry.insert(vec![(forward_info.amt_to_forward, prev_hop_data)]); }, + }; + new_events.push(events::Event::PaymentReceived { + payment_hash: forward_info.payment_hash, + amt: forward_info.amt_to_forward, + }); + }, + HTLCForwardInfo::FailHTLC { .. } => { + panic!("Got pending fail of our own HTLC"); + } + } } } } @@ -1491,26 +1349,43 @@ impl ChannelManager { }; } + for (their_node_id, err) in handle_errors.drain(..) { + match handle_error!(self, err) { + Ok(_) => {}, + Err(e) => { + if let Some(msgs::ErrorAction::IgnoreError) = e.action { + } else { + let mut channel_state = self.channel_state.lock().unwrap(); + channel_state.pending_msg_events.push(events::MessageSendEvent::HandleError { + node_id: their_node_id, + action: e.action, + }); + } + }, + } + } + if new_events.is_empty() { return } let mut events = self.pending_events.lock().unwrap(); events.append(&mut new_events); } /// Indicates that the preimage for payment_hash is unknown or the received amount is incorrect - /// after a PaymentReceived event. - /// expected_value is the value you expected the payment to be for (not the amount it actually - /// was for from the PaymentReceived event). - pub fn fail_htlc_backwards(&self, payment_hash: &PaymentHash, expected_value: u64) -> bool { + /// after a PaymentReceived event, failing the HTLC back to its origin and freeing resources + /// along the path (including in our own channel on which we received it). + /// Returns false if no payment was found to fail backwards, true if the process of failing the + /// HTLC backwards has been started. + pub fn fail_htlc_backwards(&self, payment_hash: &PaymentHash) -> bool { let _ = self.total_consistency_lock.read().unwrap(); let mut channel_state = Some(self.channel_state.lock().unwrap()); let removed_source = channel_state.as_mut().unwrap().claimable_htlcs.remove(payment_hash); if let Some(mut sources) = removed_source { - for htlc_with_hash in sources.drain(..) { + for (recvd_value, htlc_with_hash) in sources.drain(..) { if channel_state.is_none() { channel_state = Some(self.channel_state.lock().unwrap()); } self.fail_htlc_backwards_internal(channel_state.take().unwrap(), HTLCSource::PreviousHopData(htlc_with_hash), payment_hash, - HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: byte_utils::be64_to_array(expected_value).to_vec() }); + HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: byte_utils::be64_to_array(recvd_value).to_vec() }); } true } else { false } @@ -1523,6 +1398,10 @@ impl ChannelManager { /// 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_lock: MutexGuard, source: HTLCSource, payment_hash: &PaymentHash, onion_error: HTLCFailReason) { + //TODO: There is a timing attack here where if a node fails an HTLC back to us they can + //identify whether we sent it or not based on the (I presume) very different runtime + //between the branches here. We should make this async and move it into the forward HTLCs + //timer handling. match source { HTLCSource::OutboundRoute { ref route, .. } => { log_trace!(self, "Failing outbound payment HTLC with payment_hash {}", log_bytes!(payment_hash.0)); @@ -1530,9 +1409,9 @@ impl ChannelManager { match &onion_error { &HTLCFailReason::ErrorPacket { ref err } => { #[cfg(test)] - let (channel_update, payment_retryable, onion_error_code) = self.process_onion_failure(&source, err.data.clone()); + let (channel_update, payment_retryable, onion_error_code) = onion_utils::process_onion_failure(&self.secp_ctx, &self.logger, &source, err.data.clone()); #[cfg(not(test))] - let (channel_update, payment_retryable, _) = self.process_onion_failure(&source, err.data.clone()); + let (channel_update, payment_retryable, _) = onion_utils::process_onion_failure(&self.secp_ctx, &self.logger, &source, err.data.clone()); // TODO: If we decided to blame ourselves (or one of our channels) in // process_onion_failure we should close that channel as it implies our // next-hop is needlessly blaming us! @@ -1578,45 +1457,34 @@ impl ChannelManager { let err_packet = match onion_error { HTLCFailReason::Reason { failure_code, data } => { log_trace!(self, "Failing HTLC with payment_hash {} backwards from us with code {}", log_bytes!(payment_hash.0), failure_code); - let packet = ChannelManager::build_failure_packet(&incoming_packet_shared_secret, failure_code, &data[..]).encode(); - ChannelManager::encrypt_failure_packet(&incoming_packet_shared_secret, &packet) + let packet = onion_utils::build_failure_packet(&incoming_packet_shared_secret, failure_code, &data[..]).encode(); + onion_utils::encrypt_failure_packet(&incoming_packet_shared_secret, &packet) }, HTLCFailReason::ErrorPacket { err } => { log_trace!(self, "Failing HTLC with payment_hash {} backwards with pre-built ErrorPacket", log_bytes!(payment_hash.0)); - ChannelManager::encrypt_failure_packet(&incoming_packet_shared_secret, &err.data) + onion_utils::encrypt_failure_packet(&incoming_packet_shared_secret, &err.data) } }; - let channel_state = channel_state_lock.borrow_parts(); - - let chan_id = match channel_state.short_to_id.get(&short_channel_id) { - Some(chan_id) => chan_id.clone(), - None => return - }; - - let chan = channel_state.by_id.get_mut(&chan_id).unwrap(); - match chan.get_update_fail_htlc_and_commit(htlc_id, err_packet) { - Ok(Some((msg, commitment_msg, chan_monitor))) => { - if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) { - unimplemented!(); - } - channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { - node_id: chan.get_their_node_id(), - updates: msgs::CommitmentUpdate { - update_add_htlcs: Vec::new(), - update_fulfill_htlcs: Vec::new(), - update_fail_htlcs: vec![msg], - update_fail_malformed_htlcs: Vec::new(), - update_fee: None, - commitment_signed: commitment_msg, - }, - }); - }, - Ok(None) => {}, - Err(_e) => { - //TODO: Do something with e? - return; + let mut forward_event = None; + if channel_state_lock.forward_htlcs.is_empty() { + forward_event = Some(Instant::now() + Duration::from_millis(((rng::rand_f32() * 4.0 + 1.0) * MIN_HTLC_RELAY_HOLDING_CELL_MILLIS as f32) as u64)); + channel_state_lock.next_forward = forward_event.unwrap(); + } + match channel_state_lock.forward_htlcs.entry(short_channel_id) { + hash_map::Entry::Occupied(mut entry) => { + entry.get_mut().push(HTLCForwardInfo::FailHTLC { htlc_id, err_packet }); }, + hash_map::Entry::Vacant(entry) => { + entry.insert(vec!(HTLCForwardInfo::FailHTLC { htlc_id, err_packet })); + } + } + mem::drop(channel_state_lock); + if let Some(time) = forward_event { + let mut pending_events = self.pending_events.lock().unwrap(); + pending_events.push(events::Event::PendingHTLCsForwardable { + time_forwardable: time + }); } }, } @@ -1635,7 +1503,10 @@ impl ChannelManager { let mut channel_state = Some(self.channel_state.lock().unwrap()); let removed_source = channel_state.as_mut().unwrap().claimable_htlcs.remove(&payment_hash); if let Some(mut sources) = removed_source { - for htlc_with_hash in sources.drain(..) { + // TODO: We should require the user specify the expected amount so that we can claim + // only payments for the correct amount, and reject payments for incorrect amounts + // (which are probably middle nodes probing to break our privacy). + for (_, htlc_with_hash) in sources.drain(..) { if channel_state.is_none() { channel_state = Some(self.channel_state.lock().unwrap()); } self.claim_funds_internal(channel_state.take().unwrap(), HTLCSource::PreviousHopData(htlc_with_hash), payment_preimage); } @@ -1643,56 +1514,79 @@ impl ChannelManager { } else { false } } fn claim_funds_internal(&self, mut channel_state_lock: MutexGuard, source: HTLCSource, payment_preimage: PaymentPreimage) { - match source { - HTLCSource::OutboundRoute { .. } => { - mem::drop(channel_state_lock); - let mut pending_events = self.pending_events.lock().unwrap(); - pending_events.push(events::Event::PaymentSent { - payment_preimage - }); - }, - HTLCSource::PreviousHopData(HTLCPreviousHopData { short_channel_id, htlc_id, .. }) => { - //TODO: Delay the claimed_funds relaying just like we do outbound relay! - let channel_state = channel_state_lock.borrow_parts(); - - let chan_id = match channel_state.short_to_id.get(&short_channel_id) { - Some(chan_id) => chan_id.clone(), - 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 - } - }; + let (their_node_id, err) = loop { + match source { + HTLCSource::OutboundRoute { .. } => { + mem::drop(channel_state_lock); + let mut pending_events = self.pending_events.lock().unwrap(); + pending_events.push(events::Event::PaymentSent { + payment_preimage + }); + }, + HTLCSource::PreviousHopData(HTLCPreviousHopData { short_channel_id, htlc_id, .. }) => { + //TODO: Delay the claimed_funds relaying just like we do outbound relay! + let channel_state = channel_state_lock.borrow_parts(); - let chan = channel_state.by_id.get_mut(&chan_id).unwrap(); - match chan.get_update_fulfill_htlc_and_commit(htlc_id, payment_preimage) { - Ok((msgs, monitor_option)) => { - if let Some(chan_monitor) = monitor_option { - 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 chan_id = match channel_state.short_to_id.get(&short_channel_id) { + Some(chan_id) => chan_id.clone(), + 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 it's missing. + return } - if let Some((msg, commitment_signed)) = msgs { - channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { - node_id: chan.get_their_node_id(), - updates: msgs::CommitmentUpdate { - update_add_htlcs: Vec::new(), - update_fulfill_htlcs: vec![msg], - update_fail_htlcs: Vec::new(), - update_fail_malformed_htlcs: Vec::new(), - update_fee: None, - commitment_signed, + }; + + if let hash_map::Entry::Occupied(mut chan) = channel_state.by_id.entry(chan_id) { + let was_frozen_for_monitor = chan.get().is_awaiting_monitor_update(); + match chan.get_mut().get_update_fulfill_htlc_and_commit(htlc_id, payment_preimage) { + Ok((msgs, monitor_option)) => { + if let Some(chan_monitor) = monitor_option { + if let Err(e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) { + if was_frozen_for_monitor { + assert!(msgs.is_none()); + } else { + break (chan.get().get_their_node_id(), handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, msgs.is_some())); + } + } } - }); + if let Some((msg, commitment_signed)) = msgs { + channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + node_id: chan.get().get_their_node_id(), + updates: msgs::CommitmentUpdate { + update_add_htlcs: Vec::new(), + update_fulfill_htlcs: vec![msg], + update_fail_htlcs: Vec::new(), + update_fail_malformed_htlcs: Vec::new(), + update_fee: None, + commitment_signed, + } + }); + } + }, + 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 + }, } - }, - 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 - }, + } else { unreachable!(); } + }, + } + return; + }; + + match handle_error!(self, err) { + Ok(_) => {}, + Err(e) => { + if let Some(msgs::ErrorAction::IgnoreError) = e.action { + } else { + let mut channel_state = self.channel_state.lock().unwrap(); + channel_state.pending_msg_events.push(events::MessageSendEvent::HandleError { + node_id: their_node_id, + action: e.action, + }); } }, } @@ -1728,7 +1622,7 @@ impl ChannelManager { // knowledge of those gets moved into the appropriate in-memory // ChannelMonitor and they get failed backwards once we get // on-chain confirmations. - // Note I think #198 addresses this, so once its merged a test + // Note I think #198 addresses this, so once it's merged a test // should be written. if let Some(short_id) = channel.get_short_channel_id() { short_to_id.remove(&short_id); @@ -2028,7 +1922,7 @@ impl ChannelManager { // //TODO: There exists a further attack where a node may garble the onion data, forward it to //us repeatedly garbled in different ways, and compare our error messages, which are - //encrypted with the same key. Its not immediately obvious how to usefully exploit that, + //encrypted with the same key. It's not immediately obvious how to usefully exploit that, //but we should prevent it anyway. let (mut pending_forward_info, mut channel_state_lock) = self.decode_update_add_htlc_onion(msg); @@ -2055,7 +1949,7 @@ impl ChannelManager { // that we can't return |20 for an inbound channel being disabled. // This probably needs a spec update but should definitely be // allowed. - ChannelManager::build_first_hop_failure_packet(&incoming_shared_secret, 0x1000|20, &{ + onion_utils::build_first_hop_failure_packet(&incoming_shared_secret, 0x1000|20, &{ let mut res = Vec::with_capacity(8 + 128); res.extend_from_slice(&byte_utils::be16_to_array(update.contents.flags)); res.extend_from_slice(&update.encode_with_len()[..]); @@ -2067,7 +1961,7 @@ impl ChannelManager { // over the channel back to themselves (cause no one else should // know the short_id is a lightning channel yet). We should have no // problem just calling this unknown_next_peer - ChannelManager::build_first_hop_failure_packet(&incoming_shared_secret, 0x4000|10, &[]) + onion_utils::build_first_hop_failure_packet(&incoming_shared_secret, 0x4000|10, &[]) }, })); } @@ -2098,170 +1992,21 @@ impl ChannelManager { Ok(()) } - // Process failure we got back from upstream on a payment we sent. Returns update and a boolean - // indicating that the payment itself failed - fn process_onion_failure(&self, htlc_source: &HTLCSource, mut packet_decrypted: Vec) -> (Option, bool, Option) { - if let &HTLCSource::OutboundRoute { ref route, ref session_priv, ref first_hop_htlc_msat } = htlc_source { - - let mut res = None; - let mut htlc_msat = *first_hop_htlc_msat; - let mut error_code_ret = None; - let mut next_route_hop_ix = 0; - let mut is_from_final_node = false; - - // Handle packed channel/node updates for passing back for the route handler - Self::construct_onion_keys_callback(&self.secp_ctx, route, session_priv, |shared_secret, _, _, route_hop| { - next_route_hop_ix += 1; - if res.is_some() { return; } - - let amt_to_forward = htlc_msat - route_hop.fee_msat; - htlc_msat = amt_to_forward; - - 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; - - is_from_final_node = route.hops.last().unwrap().pubkey == route_hop.pubkey; - - if let Ok(err_packet) = msgs::DecodedOnionErrorPacket::read(&mut Cursor::new(&packet_decrypted)) { - let um = ChannelManager::gen_um_from_shared_secret(&shared_secret[..]); - let mut hmac = HmacEngine::::new(&um); - hmac.input(&err_packet.encode()[32..]); - - if fixed_time_eq(&Hmac::from_engine(hmac).into_inner(), &err_packet.hmac) { - if let Some(error_code_slice) = err_packet.failuremsg.get(0..2) { - const PERM: u16 = 0x4000; - const NODE: u16 = 0x2000; - const UPDATE: u16 = 0x1000; - - let error_code = byte_utils::slice_to_be16(&error_code_slice); - error_code_ret = Some(error_code); - - let (debug_field, debug_field_size) = errors::get_onion_debug_field(error_code); - - // indicate that payment parameter has failed and no need to - // update Route object - let payment_failed = (match error_code & 0xff { - 15|16|17|18|19 => true, - _ => false, - } && is_from_final_node) // PERM bit observed below even this error is from the intermediate nodes - || error_code == 21; // Special case error 21 as the Route object is bogus, TODO: Maybe fail the node if the CLTV was reasonable? - - let mut fail_channel_update = None; - - if error_code & NODE == NODE { - fail_channel_update = Some(msgs::HTLCFailChannelUpdate::NodeFailure { node_id: route_hop.pubkey, is_permanent: error_code & PERM == PERM }); - } - else if error_code & PERM == PERM { - fail_channel_update = if payment_failed {None} else {Some(msgs::HTLCFailChannelUpdate::ChannelClosed { - short_channel_id: route.hops[next_route_hop_ix - if next_route_hop_ix == route.hops.len() { 1 } else { 0 }].short_channel_id, - is_permanent: true, - })}; - } - else if error_code & UPDATE == UPDATE { - if let Some(update_len_slice) = err_packet.failuremsg.get(debug_field_size+2..debug_field_size+4) { - let update_len = byte_utils::slice_to_be16(&update_len_slice) as usize; - if let Some(update_slice) = err_packet.failuremsg.get(debug_field_size + 4..debug_field_size + 4 + update_len) { - if let Ok(chan_update) = msgs::ChannelUpdate::read(&mut Cursor::new(&update_slice)) { - // if channel_update should NOT have caused the failure: - // MAY treat the channel_update as invalid. - let is_chan_update_invalid = match error_code & 0xff { - 7 => false, - 11 => amt_to_forward > chan_update.contents.htlc_minimum_msat, - 12 => { - let new_fee = amt_to_forward.checked_mul(chan_update.contents.fee_proportional_millionths as u64).and_then(|prop_fee| { (prop_fee / 1000000).checked_add(chan_update.contents.fee_base_msat as u64) }); - new_fee.is_some() && route_hop.fee_msat >= new_fee.unwrap() - } - 13 => route_hop.cltv_expiry_delta as u16 >= chan_update.contents.cltv_expiry_delta, - 14 => false, // expiry_too_soon; always valid? - 20 => chan_update.contents.flags & 2 == 0, - _ => false, // unknown error code; take channel_update as valid - }; - fail_channel_update = if is_chan_update_invalid { - // This probably indicates the node which forwarded - // to the node in question corrupted something. - Some(msgs::HTLCFailChannelUpdate::ChannelClosed { - short_channel_id: route_hop.short_channel_id, - is_permanent: true, - }) - } else { - Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { - msg: chan_update, - }) - }; - } - } - } - if fail_channel_update.is_none() { - // They provided an UPDATE which was obviously bogus, not worth - // trying to relay through them anymore. - fail_channel_update = Some(msgs::HTLCFailChannelUpdate::NodeFailure { - node_id: route_hop.pubkey, - is_permanent: true, - }); - } - } else if !payment_failed { - // We can't understand their error messages and they failed to - // forward...they probably can't understand our forwards so its - // really not worth trying any further. - fail_channel_update = Some(msgs::HTLCFailChannelUpdate::NodeFailure { - node_id: route_hop.pubkey, - is_permanent: true, - }); - } - - // TODO: Here (and a few other places) we assume that BADONION errors - // are always "sourced" from the node previous to the one which failed - // to decode the onion. - res = Some((fail_channel_update, !(error_code & PERM == PERM && is_from_final_node))); - - let (description, title) = errors::get_onion_error_description(error_code); - if debug_field_size > 0 && err_packet.failuremsg.len() >= 4 + debug_field_size { - log_warn!(self, "Onion Error[{}({:#x}) {}({})] {}", title, error_code, debug_field, log_bytes!(&err_packet.failuremsg[4..4+debug_field_size]), description); - } - else { - log_warn!(self, "Onion Error[{}({:#x})] {}", title, error_code, description); - } - } else { - // Useless packet that we can't use but it passed HMAC, so it - // definitely came from the peer in question - res = Some((Some(msgs::HTLCFailChannelUpdate::NodeFailure { - node_id: route_hop.pubkey, - is_permanent: true, - }), !is_from_final_node)); - } - } - } - }).expect("Route that we sent via spontaneously grew invalid keys in the middle of it?"); - if let Some((channel_update, payment_retryable)) = res { - (channel_update, payment_retryable, error_code_ret) - } else { - // only not set either packet unparseable or hmac does not match with any - // payment not retryable only when garbage is from the final node - (None, !is_from_final_node, None) - } - } else { unreachable!(); } - } - - fn internal_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), MsgHandleErrInternal> { - let mut channel_lock = self.channel_state.lock().unwrap(); - let channel_state = channel_lock.borrow_parts(); - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_their_node_id() != *their_node_id { - //TODO: here and below MsgHandleErrInternal, #153 case - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id)); - } - try_chan_entry!(self, chan.get_mut().update_fail_htlc(&msg, HTLCFailReason::ErrorPacket { err: msg.reason.clone() }), channel_state, chan); - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id)) - } - Ok(()) - } + fn internal_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), MsgHandleErrInternal> { + let mut channel_lock = self.channel_state.lock().unwrap(); + let channel_state = channel_lock.borrow_parts(); + match channel_state.by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_their_node_id() != *their_node_id { + //TODO: here and below MsgHandleErrInternal, #153 case + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id)); + } + try_chan_entry!(self, chan.get_mut().update_fail_htlc(&msg, HTLCFailReason::ErrorPacket { err: msg.reason.clone() }), channel_state, chan); + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id)) + } + Ok(()) + } fn internal_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) -> Result<(), MsgHandleErrInternal> { let mut channel_lock = self.channel_state.lock().unwrap(); @@ -2294,7 +2039,7 @@ impl ChannelManager { let (revoke_and_ack, commitment_signed, closing_signed, chan_monitor) = try_chan_entry!(self, chan.get_mut().commitment_signed(&msg, &*self.fee_estimator), channel_state, chan); if let Err(e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) { - return_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::RevokeAndACKFirst, commitment_signed.is_some()); + return_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::RevokeAndACKFirst, true, commitment_signed.is_some()); //TODO: Rebroadcast closing_signed if present on monitor update restoration } channel_state.pending_msg_events.push(events::MessageSendEvent::SendRevokeAndACK { @@ -2339,10 +2084,10 @@ impl ChannelManager { for (forward_info, prev_htlc_id) in pending_forwards.drain(..) { match channel_state.forward_htlcs.entry(forward_info.short_channel_id) { hash_map::Entry::Occupied(mut entry) => { - entry.get_mut().push(HTLCForwardInfo { prev_short_channel_id, prev_htlc_id, forward_info }); + entry.get_mut().push(HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info }); }, hash_map::Entry::Vacant(entry) => { - entry.insert(vec!(HTLCForwardInfo { prev_short_channel_id, prev_htlc_id, forward_info })); + entry.insert(vec!(HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info })); } } } @@ -2369,10 +2114,16 @@ impl ChannelManager { //TODO: here and below MsgHandleErrInternal, #153 case return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id)); } + let was_frozen_for_monitor = chan.get().is_awaiting_monitor_update(); let (commitment_update, pending_forwards, pending_failures, closing_signed, chan_monitor) = try_chan_entry!(self, chan.get_mut().revoke_and_ack(&msg, &*self.fee_estimator), channel_state, chan); if let Err(e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) { - return_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, pending_forwards, pending_failures); + if was_frozen_for_monitor { + assert!(commitment_update.is_none() && closing_signed.is_none() && pending_forwards.is_empty() && pending_failures.is_empty()); + return Err(MsgHandleErrInternal::ignore_no_close("Previous monitor update failure prevented responses to RAA")); + } else { + return_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, commitment_update.is_some(), pending_forwards, pending_failures); + } } if let Some(updates) = commitment_update { channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { @@ -2433,7 +2184,7 @@ impl ChannelManager { try_chan_entry!(self, chan.get_mut().get_channel_announcement(our_node_id.clone(), self.genesis_hash.clone()), channel_state, chan); let were_node_one = announcement.node_id_1 == our_node_id; - let msghash = Message::from_slice(&Sha256dHash::from_data(&announcement.encode()[..])[..]).unwrap(); + let msghash = hash_to_message!(&Sha256dHash::hash(&announcement.encode()[..])[..]); if self.secp_ctx.verify(&msghash, &msg.node_signature, if were_node_one { &announcement.node_id_2 } else { &announcement.node_id_1 }).is_err() || self.secp_ctx.verify(&msghash, &msg.bitcoin_signature, if were_node_one { &announcement.bitcoin_key_2 } else { &announcement.bitcoin_key_1 }).is_err() { try_chan_entry!(self, Err(ChannelError::Close("Bad announcement_signatures node_signature")), channel_state, chan); @@ -2479,7 +2230,7 @@ impl ChannelManager { if commitment_update.is_none() { order = RAACommitmentOrder::RevokeAndACKFirst; } - return_monitor_err!(self, e, channel_state, chan, order); + return_monitor_err!(self, e, channel_state, chan, order, revoke_and_ack.is_some(), commitment_update.is_some()); //TODO: Resend the funding_locked if needed once we get the monitor running again } } @@ -2575,7 +2326,7 @@ impl ChannelManager { return Ok(()) }; - match handle_error!(self, err, their_node_id) { + match handle_error!(self, err) { Ok(_) => unreachable!(), Err(e) => { if let Some(msgs::ErrorAction::IgnoreError) = e.action { @@ -2595,7 +2346,7 @@ impl ChannelManager { impl events::MessageSendEventsProvider for ChannelManager { fn get_and_clear_pending_msg_events(&self) -> Vec { - // TODO: Event release to users and serialization is currently race-y: its very easy for a + // TODO: Event release to users and serialization is currently race-y: it's very easy for a // user to serialize a ChannelManager with pending events in it and lose those events on // restart. This is doubly true for the fail/fulfill-backs from monitor events! { @@ -2620,7 +2371,7 @@ impl events::MessageSendEventsProvider for ChannelManager { impl events::EventsProvider for ChannelManager { fn get_and_clear_pending_events(&self) -> Vec { - // TODO: Event release to users and serialization is currently race-y: its very easy for a + // TODO: Event release to users and serialization is currently race-y: it's very easy for a // user to serialize a ChannelManager with pending events in it and lose those events on // restart. This is doubly true for the fail/fulfill-backs from monitor events! { @@ -2724,7 +2475,7 @@ impl ChainListener for ChannelManager { } /// We force-close the channel without letting our counterparty participate in the shutdown - fn block_disconnected(&self, header: &BlockHeader) { + fn block_disconnected(&self, header: &BlockHeader, _: u32) { let _ = self.total_consistency_lock.read().unwrap(); let mut failed_channels = Vec::new(); { @@ -2761,82 +2512,82 @@ impl ChannelMessageHandler for ChannelManager { //TODO: Handle errors and close channel (or so) fn handle_open_channel(&self, their_node_id: &PublicKey, msg: &msgs::OpenChannel) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_open_channel(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_open_channel(their_node_id, msg)) } fn handle_accept_channel(&self, their_node_id: &PublicKey, msg: &msgs::AcceptChannel) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_accept_channel(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_accept_channel(their_node_id, msg)) } fn handle_funding_created(&self, their_node_id: &PublicKey, msg: &msgs::FundingCreated) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_funding_created(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_funding_created(their_node_id, msg)) } fn handle_funding_signed(&self, their_node_id: &PublicKey, msg: &msgs::FundingSigned) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_funding_signed(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_funding_signed(their_node_id, msg)) } fn handle_funding_locked(&self, their_node_id: &PublicKey, msg: &msgs::FundingLocked) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_funding_locked(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_funding_locked(their_node_id, msg)) } fn handle_shutdown(&self, their_node_id: &PublicKey, msg: &msgs::Shutdown) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_shutdown(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_shutdown(their_node_id, msg)) } fn handle_closing_signed(&self, their_node_id: &PublicKey, msg: &msgs::ClosingSigned) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_closing_signed(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_closing_signed(their_node_id, msg)) } fn handle_update_add_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateAddHTLC) -> Result<(), msgs::HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_update_add_htlc(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_update_add_htlc(their_node_id, msg)) } fn handle_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_update_fulfill_htlc(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_update_fulfill_htlc(their_node_id, msg)) } fn handle_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_update_fail_htlc(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_update_fail_htlc(their_node_id, msg)) } fn handle_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_update_fail_malformed_htlc(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_update_fail_malformed_htlc(their_node_id, msg)) } fn handle_commitment_signed(&self, their_node_id: &PublicKey, msg: &msgs::CommitmentSigned) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_commitment_signed(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_commitment_signed(their_node_id, msg)) } fn handle_revoke_and_ack(&self, their_node_id: &PublicKey, msg: &msgs::RevokeAndACK) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_revoke_and_ack(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_revoke_and_ack(their_node_id, msg)) } fn handle_update_fee(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFee) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_update_fee(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_update_fee(their_node_id, msg)) } fn handle_announcement_signatures(&self, their_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_announcement_signatures(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_announcement_signatures(their_node_id, msg)) } fn handle_channel_reestablish(&self, their_node_id: &PublicKey, msg: &msgs::ChannelReestablish) -> Result<(), HandleError> { let _ = self.total_consistency_lock.read().unwrap(); - handle_error!(self, self.internal_channel_reestablish(their_node_id, msg), their_node_id) + handle_error!(self, self.internal_channel_reestablish(their_node_id, msg)) } fn peer_disconnected(&self, their_node_id: &PublicKey, no_connection_possible: bool) { @@ -2886,6 +2637,25 @@ impl ChannelMessageHandler for ChannelManager { true }) } + pending_msg_events.retain(|msg| { + match msg { + &events::MessageSendEvent::SendAcceptChannel { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendOpenChannel { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendFundingCreated { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendFundingSigned { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendFundingLocked { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendAnnouncementSignatures { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::UpdateHTLCs { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendRevokeAndACK { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendClosingSigned { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendShutdown { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::SendChannelReestablish { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::BroadcastChannelAnnouncement { .. } => true, + &events::MessageSendEvent::BroadcastChannelUpdate { .. } => true, + &events::MessageSendEvent::HandleError { ref node_id, .. } => node_id != their_node_id, + &events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => true, + } + }); } for failure in failed_channels.drain(..) { self.finish_force_close_channel(failure); @@ -2944,12 +2714,7 @@ const MIN_SERIALIZATION_VERSION: u8 = 1; impl Writeable for PendingForwardHTLCInfo { fn write(&self, writer: &mut W) -> Result<(), ::std::io::Error> { - if let &Some(ref onion) = &self.onion_packet { - 1u8.write(writer)?; - onion.write(writer)?; - } else { - 0u8.write(writer)?; - } + self.onion_packet.write(writer)?; self.incoming_shared_secret.write(writer)?; self.payment_hash.write(writer)?; self.short_channel_id.write(writer)?; @@ -2961,13 +2726,8 @@ impl Writeable for PendingForwardHTLCInfo { impl Readable for PendingForwardHTLCInfo { fn read(reader: &mut R) -> Result { - let onion_packet = match >::read(reader)? { - 0 => None, - 1 => Some(msgs::OnionPacket::read(reader)?), - _ => return Err(DecodeError::InvalidValue), - }; Ok(PendingForwardHTLCInfo { - onion_packet, + onion_packet: Readable::read(reader)?, incoming_shared_secret: Readable::read(reader)?, payment_hash: Readable::read(reader)?, short_channel_id: Readable::read(reader)?, @@ -3097,11 +2857,41 @@ impl Readable for HTLCFailReason { } } -impl_writeable!(HTLCForwardInfo, 0, { - prev_short_channel_id, - prev_htlc_id, - forward_info -}); +impl Writeable for HTLCForwardInfo { + fn write(&self, writer: &mut W) -> Result<(), ::std::io::Error> { + match self { + &HTLCForwardInfo::AddHTLC { ref prev_short_channel_id, ref prev_htlc_id, ref forward_info } => { + 0u8.write(writer)?; + prev_short_channel_id.write(writer)?; + prev_htlc_id.write(writer)?; + forward_info.write(writer)?; + }, + &HTLCForwardInfo::FailHTLC { ref htlc_id, ref err_packet } => { + 1u8.write(writer)?; + htlc_id.write(writer)?; + err_packet.write(writer)?; + }, + } + Ok(()) + } +} + +impl Readable for HTLCForwardInfo { + fn read(reader: &mut R) -> Result { + match >::read(reader)? { + 0 => Ok(HTLCForwardInfo::AddHTLC { + prev_short_channel_id: Readable::read(reader)?, + prev_htlc_id: Readable::read(reader)?, + forward_info: Readable::read(reader)?, + }), + 1 => Ok(HTLCForwardInfo::FailHTLC { + htlc_id: Readable::read(reader)?, + err_packet: Readable::read(reader)?, + }), + _ => Err(DecodeError::InvalidValue), + } + } +} impl Writeable for ChannelManager { fn write(&self, writer: &mut W) -> Result<(), ::std::io::Error> { @@ -3141,7 +2931,8 @@ impl Writeable for ChannelManager { for (payment_hash, previous_hops) in channel_state.claimable_htlcs.iter() { payment_hash.write(writer)?; (previous_hops.len() as u64).write(writer)?; - for previous_hop in previous_hops { + for &(recvd_amt, ref previous_hop) in previous_hops.iter() { + recvd_amt.write(writer)?; previous_hop.write(writer)?; } } @@ -3200,7 +2991,7 @@ pub struct ChannelManagerReadArgs<'a> { /// value.get_funding_txo() should be the key). /// /// If a monitor is inconsistent with the channel state during deserialization the channel will - /// be force-closed using the data in the channelmonitor and the Channel will be dropped. This + /// be force-closed using the data in the ChannelMonitor and the channel will be dropped. This /// is true for missing channels as well. If there is a monitor missing for which we find /// channel data Err(DecodeError::InvalidValue) will be returned. /// @@ -3278,7 +3069,7 @@ impl<'a, R : ::std::io::Read> ReadableArgs> for (S let previous_hops_len: u64 = Readable::read(reader)?; let mut previous_hops = Vec::with_capacity(cmp::min(previous_hops_len as usize, 2)); for _ in 0..previous_hops_len { - previous_hops.push(Readable::read(reader)?); + previous_hops.push((Readable::read(reader)?, Readable::read(reader)?)); } claimable_htlcs.insert(payment_hash, previous_hops); } @@ -3320,6518 +3111,3 @@ impl<'a, R : ::std::io::Read> ReadableArgs> for (S Ok((last_block_hash.clone(), channel_manager)) } } - -#[cfg(test)] -mod tests { - use chain::chaininterface; - use chain::transaction::OutPoint; - use chain::chaininterface::{ChainListener, ChainWatchInterface}; - use chain::keysinterface::{KeysInterface, SpendableOutputDescriptor}; - use chain::keysinterface; - use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC}; - use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,OnionKeys,RAACommitmentOrder, PaymentPreimage, PaymentHash}; - use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, CLTV_CLAIM_BUFFER, HTLC_FAIL_TIMEOUT_BLOCKS, ManyChannelMonitor}; - use ln::channel::{ACCEPTED_HTLC_SCRIPT_WEIGHT, OFFERED_HTLC_SCRIPT_WEIGHT}; - use ln::router::{Route, RouteHop, Router}; - use ln::msgs; - use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler,HTLCFailChannelUpdate}; - use util::test_utils; - use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider}; - use util::errors::APIError; - use util::logger::Logger; - use util::ser::{Writeable, Writer, ReadableArgs}; - use util::config::UserConfig; - - use bitcoin::util::hash::{BitcoinHash, Sha256dHash}; - use bitcoin::util::bip143; - use bitcoin::util::address::Address; - use bitcoin::util::bip32::{ChildNumber, ExtendedPubKey, ExtendedPrivKey}; - use bitcoin::blockdata::block::{Block, BlockHeader}; - use bitcoin::blockdata::transaction::{Transaction, TxOut, TxIn, SigHashType}; - use bitcoin::blockdata::script::{Builder, Script}; - use bitcoin::blockdata::opcodes; - use bitcoin::blockdata::constants::genesis_block; - use bitcoin::network::constants::Network; - - use bitcoin_hashes::sha256::Hash as Sha256; - use bitcoin_hashes::Hash; - - use hex; - - use secp256k1::{Secp256k1, Message}; - use secp256k1::key::{PublicKey,SecretKey}; - - use rand::{thread_rng,Rng}; - - use std::cell::RefCell; - use std::collections::{BTreeSet, HashMap, HashSet}; - use std::default::Default; - use std::rc::Rc; - use std::sync::{Arc, Mutex}; - use std::sync::atomic::Ordering; - use std::time::Instant; - use std::mem; - - fn build_test_onion_keys() -> Vec { - // Keys from BOLT 4, used in both test vector tests - let secp_ctx = Secp256k1::new(); - - let route = Route { - hops: vec!( - RouteHop { - 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::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::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::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::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::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()); - onion_keys - } - - #[test] - fn onion_vectors() { - // Packet creation test vectors from BOLT 4 - let onion_keys = build_test_onion_keys(); - - 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!( - msgs::OnionHopData { - realm: 0, - data: msgs::OnionRealm0HopData { - short_channel_id: 0, - amt_to_forward: 0, - outgoing_cltv_value: 0, - }, - hmac: [0; 32], - }, - msgs::OnionHopData { - realm: 0, - data: msgs::OnionRealm0HopData { - short_channel_id: 0x0101010101010101, - amt_to_forward: 0x0100000001, - outgoing_cltv_value: 0, - }, - hmac: [0; 32], - }, - msgs::OnionHopData { - realm: 0, - data: msgs::OnionRealm0HopData { - short_channel_id: 0x0202020202020202, - amt_to_forward: 0x0200000002, - outgoing_cltv_value: 0, - }, - hmac: [0; 32], - }, - msgs::OnionHopData { - realm: 0, - data: msgs::OnionRealm0HopData { - short_channel_id: 0x0303030303030303, - amt_to_forward: 0x0300000003, - outgoing_cltv_value: 0, - }, - hmac: [0; 32], - }, - msgs::OnionHopData { - realm: 0, - data: msgs::OnionRealm0HopData { - short_channel_id: 0x0404040404040404, - amt_to_forward: 0x0400000004, - outgoing_cltv_value: 0, - }, - hmac: [0; 32], - }, - ); - - let packet = ChannelManager::construct_onion_packet(payloads, onion_keys, &PaymentHash([0x42; 32])); - // Just check the final packet encoding, as it includes all the per-hop vectors in it - // anyway... - assert_eq!(packet.encode(), hex::decode("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").unwrap()); - } - - #[test] - fn test_failure_packet_onion() { - // Returning Errors test vectors from BOLT 4 - - 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::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::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::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::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::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::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 { - header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - chain.block_connected_checked(&header, i, &[tx; 0], &[0; 0]); - } - } - - struct Node { - chain_monitor: Arc, - tx_broadcaster: Arc, - chan_monitor: Arc, - keys_manager: Arc, - node: Arc, - router: Router, - node_seed: [u8; 32], - network_payment_count: Rc>, - network_chan_count: Rc>, - } - impl Drop for Node { - fn drop(&mut self) { - if !::std::thread::panicking() { - // Check that we processed all pending events - assert_eq!(self.node.get_and_clear_pending_msg_events().len(), 0); - assert_eq!(self.node.get_and_clear_pending_events().len(), 0); - assert_eq!(self.chan_monitor.added_monitors.lock().unwrap().len(), 0); - } - } - } - - fn create_chan_between_nodes(node_a: &Node, node_b: &Node) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) { - create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001) - } - - fn create_chan_between_nodes_with_value(node_a: &Node, node_b: &Node, channel_value: u64, push_msat: u64) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) { - let (funding_locked, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat); - let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked); - (announcement, as_update, bs_update, channel_id, tx) - } - - macro_rules! get_revoke_commit_msgs { - ($node: expr, $node_id: expr) => { - { - let events = $node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 2); - (match events[0] { - MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => { - assert_eq!(*node_id, $node_id); - (*msg).clone() - }, - _ => panic!("Unexpected event"), - }, match events[1] { - MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => { - assert_eq!(*node_id, $node_id); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - updates.commitment_signed.clone() - }, - _ => panic!("Unexpected event"), - }) - } - } - } - - macro_rules! get_event_msg { - ($node: expr, $event_type: path, $node_id: expr) => { - { - let events = $node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - $event_type { ref node_id, ref msg } => { - assert_eq!(*node_id, $node_id); - (*msg).clone() - }, - _ => panic!("Unexpected event"), - } - } - } - } - - macro_rules! get_htlc_update_msgs { - ($node: expr, $node_id: expr) => { - { - let events = $node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => { - assert_eq!(*node_id, $node_id); - (*updates).clone() - }, - _ => panic!("Unexpected event"), - } - } - } - } - - macro_rules! get_feerate { - ($node: expr, $channel_id: expr) => { - { - let chan_lock = $node.node.channel_state.lock().unwrap(); - let chan = chan_lock.by_id.get(&$channel_id).unwrap(); - chan.get_feerate() - } - } - } - - - fn create_chan_between_nodes_with_value_init(node_a: &Node, node_b: &Node, channel_value: u64, push_msat: u64) -> Transaction { - node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42).unwrap(); - node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id())).unwrap(); - node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id())).unwrap(); - - let chan_id = *node_a.network_chan_count.borrow(); - let tx; - let funding_output; - - 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, channel_value); - 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 = OutPoint::new(tx.txid(), 0); - - 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); - added_monitors.clear(); - }, - _ => panic!("Unexpected event"), - } - - node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id())).unwrap(); - { - let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap(); - assert_eq!(added_monitors.len(), 1); - assert_eq!(added_monitors[0].0, funding_output); - added_monitors.clear(); - } - - node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingSigned, node_a.node.get_our_node_id())).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_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); - }, - _ => panic!("Unexpected event"), - }; - - tx - } - - fn create_chan_between_nodes_with_value_confirm(node_a: &Node, node_b: &Node, tx: &Transaction) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) { - confirm_transaction(&node_b.chain_monitor, &tx, tx.version); - node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingLocked, node_a.node.get_our_node_id())).unwrap(); - - let channel_id; - - confirm_transaction(&node_a.chain_monitor, &tx, tx.version); - let events_6 = node_a.node.get_and_clear_pending_msg_events(); - assert_eq!(events_6.len(), 2); - ((match events_6[0] { - MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => { - channel_id = msg.channel_id.clone(); - assert_eq!(*node_id, node_b.node.get_our_node_id()); - msg.clone() - }, - _ => panic!("Unexpected event"), - }, match events_6[1] { - MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => { - assert_eq!(*node_id, node_b.node.get_our_node_id()); - msg.clone() - }, - _ => panic!("Unexpected event"), - }), channel_id) - } - - fn create_chan_between_nodes_with_value_a(node_a: &Node, node_b: &Node, channel_value: u64, push_msat: u64) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32], Transaction) { - let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat); - let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx); - (msgs, chan_id, tx) - } - - fn create_chan_between_nodes_with_value_b(node_a: &Node, node_b: &Node, as_funding_msgs: &(msgs::FundingLocked, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) { - node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0).unwrap(); - let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id()); - node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1).unwrap(); - - let events_7 = node_b.node.get_and_clear_pending_msg_events(); - assert_eq!(events_7.len(), 1); - let (announcement, bs_update) = match events_7[0] { - MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => { - (msg, update_msg) - }, - _ => panic!("Unexpected event"), - }; - - node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs).unwrap(); - let events_8 = node_a.node.get_and_clear_pending_msg_events(); - assert_eq!(events_8.len(), 1); - let as_update = match events_8[0] { - MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => { - assert!(*announcement == *msg); - assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id); - assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id); - update_msg - }, - _ => panic!("Unexpected event"), - }; - - *node_a.network_chan_count.borrow_mut() += 1; - - ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone()) - } - - fn create_announced_chan_between_nodes(nodes: &Vec, a: usize, b: usize) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) { - create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001) - } - - fn create_announced_chan_between_nodes_with_value(nodes: &Vec, a: usize, b: usize, channel_value: u64, push_msat: u64) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) { - let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat); - for node in nodes { - assert!(node.router.handle_channel_announcement(&chan_announcement.0).unwrap()); - node.router.handle_channel_update(&chan_announcement.1).unwrap(); - node.router.handle_channel_update(&chan_announcement.2).unwrap(); - } - (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4) - } - - macro_rules! check_spends { - ($tx: expr, $spends_tx: expr) => { - { - let mut funding_tx_map = HashMap::new(); - let spends_tx = $spends_tx; - funding_tx_map.insert(spends_tx.txid(), spends_tx); - $tx.verify(&funding_tx_map).unwrap(); - } - } - } - - macro_rules! get_closing_signed_broadcast { - ($node: expr, $dest_pubkey: expr) => { - { - let events = $node.get_and_clear_pending_msg_events(); - assert!(events.len() == 1 || events.len() == 2); - (match events[events.len() - 1] { - MessageSendEvent::BroadcastChannelUpdate { ref msg } => { - assert_eq!(msg.contents.flags & 2, 2); - msg.clone() - }, - _ => panic!("Unexpected event"), - }, if events.len() == 2 { - match events[0] { - MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => { - assert_eq!(*node_id, $dest_pubkey); - Some(msg.clone()) - }, - _ => panic!("Unexpected event"), - } - } else { None }) - } - } - } - - fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &[u8; 32], funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Transaction) { - let (node_a, broadcaster_a, struct_a) = if close_inbound_first { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) } else { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) }; - 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); - - node_a.close_channel(channel_id).unwrap(); - node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id())).unwrap(); - - let events_1 = node_b.get_and_clear_pending_msg_events(); - assert!(events_1.len() >= 1); - let shutdown_b = match events_1[0] { - MessageSendEvent::SendShutdown { ref node_id, ref msg } => { - assert_eq!(node_id, &node_a.get_our_node_id()); - msg.clone() - }, - _ => panic!("Unexpected event"), - }; - - let closing_signed_b = if !close_inbound_first { - assert_eq!(events_1.len(), 1); - None - } else { - Some(match events_1[1] { - MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => { - assert_eq!(node_id, &node_a.get_our_node_id()); - msg.clone() - }, - _ => panic!("Unexpected event"), - }) - }; - - node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b).unwrap(); - let (as_update, bs_update) = if close_inbound_first { - assert!(node_a.get_and_clear_pending_msg_events().is_empty()); - node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap()).unwrap(); - assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1); - tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0); - let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id()); - - node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap()).unwrap(); - let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id()); - assert!(none_b.is_none()); - assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1); - tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0); - (as_update, bs_update) - } else { - let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id()); - - node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a).unwrap(); - assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1); - tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0); - let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id()); - - node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap()).unwrap(); - let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id()); - assert!(none_a.is_none()); - assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1); - tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0); - (as_update, bs_update) - }; - assert_eq!(tx_a, tx_b); - check_spends!(tx_a, funding_tx); - - (as_update, bs_update, tx_a) - } - - struct SendEvent { - node_id: PublicKey, - msgs: Vec, - commitment_msg: msgs::CommitmentSigned, - } - impl SendEvent { - fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent { - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed } - } - - fn from_event(event: MessageSendEvent) -> SendEvent { - match event { - MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates), - _ => panic!("Unexpected event type!"), - } - } - - fn from_node(node: &Node) -> SendEvent { - let mut events = node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - SendEvent::from_event(events.pop().unwrap()) - } - } - - macro_rules! check_added_monitors { - ($node: expr, $count: expr) => { - { - let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap(); - assert_eq!(added_monitors.len(), $count); - added_monitors.clear(); - } - } - } - - macro_rules! commitment_signed_dance { - ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => { - { - check_added_monitors!($node_a, 0); - assert!($node_a.node.get_and_clear_pending_msg_events().is_empty()); - $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed).unwrap(); - check_added_monitors!($node_a, 1); - commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false); - } - }; - ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => { - { - let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id()); - check_added_monitors!($node_b, 0); - assert!($node_b.node.get_and_clear_pending_msg_events().is_empty()); - $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - assert!($node_b.node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!($node_b, 1); - $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed).unwrap(); - let (bs_revoke_and_ack, extra_msg_option) = { - let events = $node_b.node.get_and_clear_pending_msg_events(); - assert!(events.len() <= 2); - (match events[0] { - MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => { - assert_eq!(*node_id, $node_a.node.get_our_node_id()); - (*msg).clone() - }, - _ => panic!("Unexpected event"), - }, events.get(1).map(|e| e.clone())) - }; - check_added_monitors!($node_b, 1); - if $fail_backwards { - assert!($node_a.node.get_and_clear_pending_events().is_empty()); - assert!($node_a.node.get_and_clear_pending_msg_events().is_empty()); - } - (extra_msg_option, bs_revoke_and_ack) - } - }; - ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => { - { - check_added_monitors!($node_a, 0); - assert!($node_a.node.get_and_clear_pending_msg_events().is_empty()); - $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed).unwrap(); - check_added_monitors!($node_a, 1); - let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true); - assert!(extra_msg_option.is_none()); - bs_revoke_and_ack - } - }; - ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => { - { - let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true); - $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - { - let mut added_monitors = $node_a.chan_monitor.added_monitors.lock().unwrap(); - if $fail_backwards { - assert_eq!(added_monitors.len(), 2); - assert!(added_monitors[0].0 != added_monitors[1].0); - } else { - assert_eq!(added_monitors.len(), 1); - } - added_monitors.clear(); - } - extra_msg_option - } - }; - ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => { - { - assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none()); - } - }; - ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => { - { - commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true); - if $fail_backwards { - let channel_state = $node_a.node.channel_state.lock().unwrap(); - assert_eq!(channel_state.pending_msg_events.len(), 1); - if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] { - assert_ne!(*node_id, $node_b.node.get_our_node_id()); - } else { panic!("Unexpected event"); } - } else { - assert!($node_a.node.get_and_clear_pending_msg_events().is_empty()); - } - } - } - } - - macro_rules! get_payment_preimage_hash { - ($node: expr) => { - { - let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]); - *$node.network_payment_count.borrow_mut() += 1; - let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()); - (payment_preimage, payment_hash) - } - } - } - - fn send_along_route(origin_node: &Node, route: Route, expected_route: &[&Node], recv_value: u64) -> (PaymentPreimage, PaymentHash) { - let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node); - - let mut payment_event = { - origin_node.node.send_payment(route, our_payment_hash).unwrap(); - check_added_monitors!(origin_node, 1); - - let mut events = origin_node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - SendEvent::from_event(events.remove(0)) - }; - let mut prev_node = origin_node; - - for (idx, &node) in expected_route.iter().enumerate() { - assert_eq!(node.node.get_our_node_id(), payment_event.node_id); - - node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - check_added_monitors!(node, 0); - commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false); - - let events_1 = node.node.get_and_clear_pending_events(); - assert_eq!(events_1.len(), 1); - match events_1[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - node.node.channel_state.lock().unwrap().next_forward = Instant::now(); - node.node.process_pending_htlc_forwards(); - - if idx == expected_route.len() - 1 { - let events_2 = node.node.get_and_clear_pending_events(); - assert_eq!(events_2.len(), 1); - match events_2[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(our_payment_hash, *payment_hash); - assert_eq!(amt, recv_value); - }, - _ => panic!("Unexpected event"), - } - } else { - let mut events_2 = node.node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - check_added_monitors!(node, 1); - payment_event = SendEvent::from_event(events_2.remove(0)); - assert_eq!(payment_event.msgs.len(), 1); - } - - prev_node = node; - } - - (our_payment_preimage, our_payment_hash) - } - - fn claim_payment_along_route(origin_node: &Node, expected_route: &[&Node], skip_last: bool, our_payment_preimage: PaymentPreimage) { - assert!(expected_route.last().unwrap().node.claim_funds(our_payment_preimage)); - check_added_monitors!(expected_route.last().unwrap(), 1); - - let mut next_msgs: Option<(msgs::UpdateFulfillHTLC, msgs::CommitmentSigned)> = None; - let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id(); - macro_rules! get_next_msgs { - ($node: expr) => { - { - let events = $node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => { - assert!(update_add_htlcs.is_empty()); - assert_eq!(update_fulfill_htlcs.len(), 1); - assert!(update_fail_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert!(update_fee.is_none()); - expected_next_node = node_id.clone(); - Some((update_fulfill_htlcs[0].clone(), commitment_signed.clone())) - }, - _ => panic!("Unexpected event"), - } - } - } - } - - macro_rules! last_update_fulfill_dance { - ($node: expr, $prev_node: expr) => { - { - $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0).unwrap(); - check_added_monitors!($node, 0); - assert!($node.node.get_and_clear_pending_msg_events().is_empty()); - commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false); - } - } - } - macro_rules! mid_update_fulfill_dance { - ($node: expr, $prev_node: expr, $new_msgs: expr) => { - { - $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0).unwrap(); - check_added_monitors!($node, 1); - let new_next_msgs = if $new_msgs { - get_next_msgs!($node) - } else { - assert!($node.node.get_and_clear_pending_msg_events().is_empty()); - None - }; - commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false); - next_msgs = new_next_msgs; - } - } - } - - let mut prev_node = expected_route.last().unwrap(); - for (idx, node) in expected_route.iter().rev().enumerate() { - assert_eq!(expected_next_node, node.node.get_our_node_id()); - let update_next_msgs = !skip_last || idx != expected_route.len() - 1; - if next_msgs.is_some() { - mid_update_fulfill_dance!(node, prev_node, update_next_msgs); - } else if update_next_msgs { - next_msgs = get_next_msgs!(node); - } else { - assert!(node.node.get_and_clear_pending_msg_events().is_empty()); - } - if !skip_last && idx == expected_route.len() - 1 { - assert_eq!(expected_next_node, origin_node.node.get_our_node_id()); - } - - prev_node = node; - } - - if !skip_last { - last_update_fulfill_dance!(origin_node, expected_route.first().unwrap()); - let events = origin_node.node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentSent { payment_preimage } => { - assert_eq!(payment_preimage, our_payment_preimage); - }, - _ => panic!("Unexpected event"), - } - } - } - - fn claim_payment(origin_node: &Node, expected_route: &[&Node], our_payment_preimage: PaymentPreimage) { - claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage); - } - - const TEST_FINAL_CLTV: u32 = 32; - - fn route_payment(origin_node: &Node, expected_route: &[&Node], recv_value: u64) -> (PaymentPreimage, PaymentHash) { - 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()); - } - - send_along_route(origin_node, route, expected_route, recv_value) - } - - 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(), 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()); - } - - let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node); - - let err = origin_node.node.send_payment(route, our_payment_hash).err().unwrap(); - match err { - APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over our max HTLC value in flight"), - _ => panic!("Unknown error variants"), - }; - } - - fn send_payment(origin: &Node, expected_route: &[&Node], recv_value: u64) { - let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0; - claim_payment(&origin, expected_route, our_payment_preimage); - } - - fn fail_payment_along_route(origin_node: &Node, expected_route: &[&Node], skip_last: bool, our_payment_hash: PaymentHash) { - assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, 0)); - check_added_monitors!(expected_route.last().unwrap(), 1); - - let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None; - macro_rules! update_fail_dance { - ($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(); - commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node); - } - } - } - - let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id(); - let mut prev_node = expected_route.last().unwrap(); - for (idx, node) in expected_route.iter().rev().enumerate() { - assert_eq!(expected_next_node, node.node.get_our_node_id()); - if next_msgs.is_some() { - // We may be the "last node" for the purpose of the commitment dance if we're - // skipping the last node (implying it is disconnected) and we're the - // second-to-last node! - update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1); - } - - let events = node.node.get_and_clear_pending_msg_events(); - if !skip_last || idx != expected_route.len() - 1 { - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => { - assert!(update_add_htlcs.is_empty()); - assert!(update_fulfill_htlcs.is_empty()); - assert_eq!(update_fail_htlcs.len(), 1); - assert!(update_fail_malformed_htlcs.is_empty()); - assert!(update_fee.is_none()); - expected_next_node = node_id.clone(); - next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone())); - }, - _ => panic!("Unexpected event"), - } - } else { - assert!(events.is_empty()); - } - if !skip_last && idx == expected_route.len() - 1 { - assert_eq!(expected_next_node, origin_node.node.get_our_node_id()); - } - - prev_node = node; - } - - if !skip_last { - 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); - match events[0] { - Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => { - assert_eq!(payment_hash, our_payment_hash); - assert!(rejected_by_dest); - }, - _ => panic!("Unexpected event"), - } - } - } - - fn fail_payment(origin_node: &Node, expected_route: &[&Node], our_payment_hash: PaymentHash) { - fail_payment_along_route(origin_node, expected_route, false, our_payment_hash); - } - - fn create_network(node_count: usize) -> Vec { - let mut nodes = Vec::new(); - let mut rng = thread_rng(); - let secp_ctx = Secp256k1::new(); - - let chan_count = Rc::new(RefCell::new(0)); - let payment_count = Rc::new(RefCell::new(0)); - - for i in 0..node_count { - let logger: Arc = Arc::new(test_utils::TestLogger::with_id(format!("node {}", i))); - let feeest = Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 }); - let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet, Arc::clone(&logger))); - let tx_broadcaster = Arc::new(test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())}); - let mut seed = [0; 32]; - rng.fill_bytes(&mut seed); - let keys_manager = Arc::new(test_utils::TestKeysInterface::new(&seed, Network::Testnet, Arc::clone(&logger))); - let chan_monitor = Arc::new(test_utils::TestChannelMonitor::new(chain_monitor.clone(), tx_broadcaster.clone(), logger.clone())); - let mut config = UserConfig::new(); - config.channel_options.announced_channel = true; - config.channel_limits.force_announced_channel_preference = false; - let node = ChannelManager::new(Network::Testnet, feeest.clone(), chan_monitor.clone(), chain_monitor.clone(), tx_broadcaster.clone(), Arc::clone(&logger), keys_manager.clone(), config).unwrap(); - let router = Router::new(PublicKey::from_secret_key(&secp_ctx, &keys_manager.get_node_secret()), chain_monitor.clone(), Arc::clone(&logger)); - nodes.push(Node { chain_monitor, tx_broadcaster, chan_monitor, node, router, keys_manager, node_seed: seed, - network_payment_count: payment_count.clone(), - network_chan_count: chan_count.clone(), - }); - } - - nodes - } - - #[test] - fn test_async_inbound_update_fee() { - let mut nodes = create_network(2); - let chan = create_announced_chan_between_nodes(&nodes, 0, 1); - let channel_id = chan.2; - - // balancing - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); - - // A B - // update_fee -> - // send (1) commitment_signed -. - // <- update_add_htlc/commitment_signed - // send (2) RAA (awaiting remote revoke) -. - // (1) commitment_signed is delivered -> - // .- send (3) RAA (awaiting remote revoke) - // (2) RAA is delivered -> - // .- send (4) commitment_signed - // <- (3) RAA is delivered - // send (5) commitment_signed -. - // <- (4) commitment_signed is delivered - // send (6) RAA -. - // (5) commitment_signed is delivered -> - // <- RAA - // (6) RAA is delivered -> - - // First nodes[0] generates an update_fee - nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0], channel_id) + 20).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_0 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_0.len(), 1); - let (update_msg, commitment_signed) = match events_0[0] { // (1) - MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, ref commitment_signed, .. }, .. } => { - (update_fee.as_ref(), commitment_signed) - }, - _ => panic!("Unexpected event"), - }; - - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap(); - - // ...but before it's delivered, nodes[1] starts to send a payment back to nodes[0]... - let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); - nodes[1].node.send_payment(nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV).unwrap(), our_payment_hash).unwrap(); - check_added_monitors!(nodes[1], 1); - - let payment_event = { - let mut events_1 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_1.len(), 1); - SendEvent::from_event(events_1.remove(0)) - }; - assert_eq!(payment_event.node_id, nodes[0].node.get_our_node_id()); - assert_eq!(payment_event.msgs.len(), 1); - - // ...now when the messages get delivered everyone should be happy - nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &payment_event.commitment_msg).unwrap(); // (2) - let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // nodes[0] is awaiting nodes[1] revoke_and_ack so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - // deliver(1), generate (3): - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap(); - let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // nodes[1] is awaiting nodes[0] revoke_and_ack so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); // deliver (2) - let bs_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(bs_update.update_add_htlcs.is_empty()); // (4) - assert!(bs_update.update_fulfill_htlcs.is_empty()); // (4) - assert!(bs_update.update_fail_htlcs.is_empty()); // (4) - assert!(bs_update.update_fail_malformed_htlcs.is_empty()); // (4) - assert!(bs_update.update_fee.is_none()); // (4) - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); // deliver (3) - let as_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - assert!(as_update.update_add_htlcs.is_empty()); // (5) - assert!(as_update.update_fulfill_htlcs.is_empty()); // (5) - assert!(as_update.update_fail_htlcs.is_empty()); // (5) - assert!(as_update.update_fail_malformed_htlcs.is_empty()); // (5) - assert!(as_update.update_fee.is_none()); // (5) - check_added_monitors!(nodes[0], 1); - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_update.commitment_signed).unwrap(); // deliver (4) - let as_second_revoke = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // only (6) so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_update.commitment_signed).unwrap(); // deliver (5) - let bs_second_revoke = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_2 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_2.len(), 1); - match events_2[0] { - Event::PendingHTLCsForwardable {..} => {}, // If we actually processed we'd receive the payment - _ => panic!("Unexpected event"), - } - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_revoke).unwrap(); // deliver (6) - check_added_monitors!(nodes[1], 1); - } - - #[test] - fn test_update_fee_unordered_raa() { - // Just the intro to the previous test followed by an out-of-order RAA (which caused a - // crash in an earlier version of the update_fee patch) - let mut nodes = create_network(2); - let chan = create_announced_chan_between_nodes(&nodes, 0, 1); - let channel_id = chan.2; - - // balancing - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); - - // First nodes[0] generates an update_fee - nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0], channel_id) + 20).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_0 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_0.len(), 1); - let update_msg = match events_0[0] { // (1) - MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, .. }, .. } => { - update_fee.as_ref() - }, - _ => panic!("Unexpected event"), - }; - - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap(); - - // ...but before it's delivered, nodes[1] starts to send a payment back to nodes[0]... - let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); - nodes[1].node.send_payment(nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV).unwrap(), our_payment_hash).unwrap(); - check_added_monitors!(nodes[1], 1); - - let payment_event = { - let mut events_1 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_1.len(), 1); - SendEvent::from_event(events_1.remove(0)) - }; - assert_eq!(payment_event.node_id, nodes[0].node.get_our_node_id()); - assert_eq!(payment_event.msgs.len(), 1); - - // ...now when the messages get delivered everyone should be happy - nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &payment_event.commitment_msg).unwrap(); // (2) - let as_revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // nodes[0] is awaiting nodes[1] revoke_and_ack so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_msg).unwrap(); // deliver (2) - check_added_monitors!(nodes[1], 1); - - // We can't continue, sadly, because our (1) now has a bogus signature - } - - #[test] - fn test_multi_flight_update_fee() { - let nodes = create_network(2); - let chan = create_announced_chan_between_nodes(&nodes, 0, 1); - let channel_id = chan.2; - - // A B - // update_fee/commitment_signed -> - // .- send (1) RAA and (2) commitment_signed - // update_fee (never committed) -> - // (3) update_fee -> - // We have to manually generate the above update_fee, it is allowed by the protocol but we - // don't track which updates correspond to which revoke_and_ack responses so we're in - // AwaitingRAA mode and will not generate the update_fee yet. - // <- (1) RAA delivered - // (3) is generated and send (4) CS -. - // Note that A cannot generate (4) prior to (1) being delivered as it otherwise doesn't - // know the per_commitment_point to use for it. - // <- (2) commitment_signed delivered - // revoke_and_ack -> - // B should send no response here - // (4) commitment_signed delivered -> - // <- RAA/commitment_signed delivered - // revoke_and_ack -> - - // First nodes[0] generates an update_fee - let initial_feerate = get_feerate!(nodes[0], channel_id); - nodes[0].node.update_fee(channel_id, initial_feerate + 20).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_0 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_0.len(), 1); - let (update_msg_1, commitment_signed_1) = match events_0[0] { // (1) - MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, ref commitment_signed, .. }, .. } => { - (update_fee.as_ref().unwrap(), commitment_signed) - }, - _ => panic!("Unexpected event"), - }; - - // Deliver first update_fee/commitment_signed pair, generating (1) and (2): - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg_1).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed_1).unwrap(); - let (bs_revoke_msg, bs_commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - check_added_monitors!(nodes[1], 1); - - // nodes[0] is awaiting a revoke from nodes[1] before it will create a new commitment - // transaction: - nodes[0].node.update_fee(channel_id, initial_feerate + 40).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - - // Create the (3) update_fee message that nodes[0] will generate before it does... - let mut update_msg_2 = msgs::UpdateFee { - channel_id: update_msg_1.channel_id.clone(), - feerate_per_kw: (initial_feerate + 30) as u32, - }; - - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg_2).unwrap(); - - update_msg_2.feerate_per_kw = (initial_feerate + 40) as u32; - // Deliver (3) - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg_2).unwrap(); - - // Deliver (1), generating (3) and (4) - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_msg).unwrap(); - let as_second_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - check_added_monitors!(nodes[0], 1); - assert!(as_second_update.update_add_htlcs.is_empty()); - assert!(as_second_update.update_fulfill_htlcs.is_empty()); - assert!(as_second_update.update_fail_htlcs.is_empty()); - assert!(as_second_update.update_fail_malformed_htlcs.is_empty()); - // Check that the update_fee newly generated matches what we delivered: - assert_eq!(as_second_update.update_fee.as_ref().unwrap().channel_id, update_msg_2.channel_id); - assert_eq!(as_second_update.update_fee.as_ref().unwrap().feerate_per_kw, update_msg_2.feerate_per_kw); - - // Deliver (2) commitment_signed - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_commitment_signed).unwrap(); - let as_revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - check_added_monitors!(nodes[0], 1); - // No commitment_signed so get_event_msg's assert(len == 1) passes - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_msg).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - // Delever (4) - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_second_update.commitment_signed).unwrap(); - let (bs_second_revoke, bs_second_commitment) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment).unwrap(); - let as_second_revoke = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_revoke).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - } - - #[test] - fn test_update_fee_vanilla() { - let nodes = create_network(2); - let chan = create_announced_chan_between_nodes(&nodes, 0, 1); - let channel_id = chan.2; - - let feerate = get_feerate!(nodes[0], channel_id); - nodes[0].node.update_fee(channel_id, feerate+25).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_0 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_0.len(), 1); - let (update_msg, commitment_signed) = match events_0[0] { - MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => { - (update_fee.as_ref(), commitment_signed) - }, - _ => panic!("Unexpected event"), - }; - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap(); - - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap(); - let (revoke_msg, commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed).unwrap(); - let revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - } - - #[test] - fn test_update_fee_that_funder_cannot_afford() { - let nodes = create_network(2); - let channel_value = 1888; - let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 700000); - let channel_id = chan.2; - - let feerate = 260; - nodes[0].node.update_fee(channel_id, feerate).unwrap(); - check_added_monitors!(nodes[0], 1); - let update_msg = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg.update_fee.unwrap()).unwrap(); - - commitment_signed_dance!(nodes[1], nodes[0], update_msg.commitment_signed, false); - - //Confirm that the new fee based on the last local commitment txn is what we expected based on the feerate of 260 set above. - //This value results in a fee that is exactly what the funder can afford (277 sat + 1000 sat channel reserve) - { - let chan_lock = nodes[1].node.channel_state.lock().unwrap(); - let chan = chan_lock.by_id.get(&channel_id).unwrap(); - - //We made sure neither party's funds are below the dust limit so -2 non-HTLC txns from number of outputs - let num_htlcs = chan.last_local_commitment_txn[0].output.len() - 2; - let total_fee: u64 = feerate * (COMMITMENT_TX_BASE_WEIGHT + (num_htlcs as u64) * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000; - let mut actual_fee = chan.last_local_commitment_txn[0].output.iter().fold(0, |acc, output| acc + output.value); - actual_fee = channel_value - actual_fee; - assert_eq!(total_fee, actual_fee); - } //drop the mutex - - //Add 2 to the previous fee rate to the final fee increases by 1 (with no HTLCs the fee is essentially - //fee_rate*(724/1000) so the increment of 1*0.724 is rounded back down) - nodes[0].node.update_fee(channel_id, feerate+2).unwrap(); - check_added_monitors!(nodes[0], 1); - - let update2_msg = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update2_msg.update_fee.unwrap()).unwrap(); - - //While producing the commitment_signed response after handling a received update_fee request the - //check to see if the funder, who sent the update_fee request, can afford the new fee (funder_balance >= fee+channel_reserve) - //Should produce and error. - let err = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &update2_msg.commitment_signed).unwrap_err(); - - assert!(match err.err { - "Funding remote cannot afford proposed new fee" => true, - _ => false, - }); - - //clear the message we could not handle - nodes[1].node.get_and_clear_pending_msg_events(); - } - - #[test] - fn test_update_fee_with_fundee_update_add_htlc() { - let mut nodes = create_network(2); - let chan = create_announced_chan_between_nodes(&nodes, 0, 1); - let channel_id = chan.2; - - // balancing - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); - - let feerate = get_feerate!(nodes[0], channel_id); - nodes[0].node.update_fee(channel_id, feerate+20).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_0 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_0.len(), 1); - let (update_msg, commitment_signed) = match events_0[0] { - MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => { - (update_fee.as_ref(), commitment_signed) - }, - _ => panic!("Unexpected event"), - }; - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap(); - let (revoke_msg, commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - check_added_monitors!(nodes[1], 1); - - let route = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 800000, TEST_FINAL_CLTV).unwrap(); - - let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[1]); - - // nothing happens since node[1] is in AwaitingRemoteRevoke - nodes[1].node.send_payment(route, our_payment_hash).unwrap(); - { - let mut added_monitors = nodes[0].chan_monitor.added_monitors.lock().unwrap(); - assert_eq!(added_monitors.len(), 0); - added_monitors.clear(); - } - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - // node[1] has nothing to do - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed).unwrap(); - let revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg).unwrap(); - check_added_monitors!(nodes[1], 1); - // AwaitingRemoteRevoke ends here - - let commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert_eq!(commitment_update.update_add_htlcs.len(), 1); - assert_eq!(commitment_update.update_fulfill_htlcs.len(), 0); - assert_eq!(commitment_update.update_fail_htlcs.len(), 0); - assert_eq!(commitment_update.update_fail_malformed_htlcs.len(), 0); - assert_eq!(commitment_update.update_fee.is_none(), true); - - nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &commitment_update.update_add_htlcs[0]).unwrap(); - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_update.commitment_signed).unwrap(); - check_added_monitors!(nodes[0], 1); - let (revoke, commitment_signed) = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke).unwrap(); - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - let revoke = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke).unwrap(); - check_added_monitors!(nodes[0], 1); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - nodes[0].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[0].node.process_pending_htlc_forwards(); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentReceived { .. } => { }, - _ => panic!("Unexpected event"), - }; - - claim_payment(&nodes[1], &vec!(&nodes[0])[..], our_payment_preimage); - - send_payment(&nodes[1], &vec!(&nodes[0])[..], 800000); - send_payment(&nodes[0], &vec!(&nodes[1])[..], 800000); - close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true); - } - - #[test] - fn test_update_fee() { - let nodes = create_network(2); - let chan = create_announced_chan_between_nodes(&nodes, 0, 1); - let channel_id = chan.2; - - // A B - // (1) update_fee/commitment_signed -> - // <- (2) revoke_and_ack - // .- send (3) commitment_signed - // (4) update_fee/commitment_signed -> - // .- send (5) revoke_and_ack (no CS as we're awaiting a revoke) - // <- (3) commitment_signed delivered - // send (6) revoke_and_ack -. - // <- (5) deliver revoke_and_ack - // (6) deliver revoke_and_ack -> - // .- send (7) commitment_signed in response to (4) - // <- (7) deliver commitment_signed - // revoke_and_ack -> - - // Create and deliver (1)... - let feerate = get_feerate!(nodes[0], channel_id); - nodes[0].node.update_fee(channel_id, feerate+20).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_0 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_0.len(), 1); - let (update_msg, commitment_signed) = match events_0[0] { - MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => { - (update_fee.as_ref(), commitment_signed) - }, - _ => panic!("Unexpected event"), - }; - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap(); - - // Generate (2) and (3): - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap(); - let (revoke_msg, commitment_signed_0) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - check_added_monitors!(nodes[1], 1); - - // Deliver (2): - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - // Create and deliver (4)... - nodes[0].node.update_fee(channel_id, feerate+30).unwrap(); - check_added_monitors!(nodes[0], 1); - let events_0 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_0.len(), 1); - let (update_msg, commitment_signed) = match events_0[0] { - MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => { - (update_fee.as_ref(), commitment_signed) - }, - _ => panic!("Unexpected event"), - }; - - nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap()).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - // ... creating (5) - let revoke_msg = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - - // Handle (3), creating (6): - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed_0).unwrap(); - check_added_monitors!(nodes[0], 1); - let revoke_msg_0 = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - - // Deliver (5): - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - // Deliver (6), creating (7): - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg_0).unwrap(); - let commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(commitment_update.update_add_htlcs.is_empty()); - assert!(commitment_update.update_fulfill_htlcs.is_empty()); - assert!(commitment_update.update_fail_htlcs.is_empty()); - assert!(commitment_update.update_fail_malformed_htlcs.is_empty()); - assert!(commitment_update.update_fee.is_none()); - check_added_monitors!(nodes[1], 1); - - // Deliver (7) - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_update.commitment_signed).unwrap(); - check_added_monitors!(nodes[0], 1); - let revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg).unwrap(); - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - assert_eq!(get_feerate!(nodes[0], channel_id), feerate + 30); - assert_eq!(get_feerate!(nodes[1], channel_id), feerate + 30); - close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true); - } - - #[test] - fn pre_funding_lock_shutdown_test() { - // Test sending a shutdown prior to funding_locked after funding generation - let nodes = create_network(2); - let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 8000000, 0); - 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_checked(&header, 1, &[&tx; 1], &[1; 1]); - nodes[1].chain_monitor.block_connected_checked(&header, 1, &[&tx; 1], &[1; 1]); - - nodes[0].node.close_channel(&OutPoint::new(tx.txid(), 0).to_channel_id()).unwrap(); - let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown).unwrap(); - let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown).unwrap(); - - let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed).unwrap(); - let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap()).unwrap(); - let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id()); - assert!(node_0_none.is_none()); - - assert!(nodes[0].node.list_channels().is_empty()); - assert!(nodes[1].node.list_channels().is_empty()); - } - - #[test] - fn updates_shutdown_wait() { - // Test sending a shutdown with outstanding updates pending - let mut nodes = create_network(3); - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - let route_1 = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV).unwrap(); - let route_2 = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV).unwrap(); - - let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100000); - - nodes[0].node.close_channel(&chan_1.2).unwrap(); - let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown).unwrap(); - let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown).unwrap(); - - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]); - if let Err(APIError::ChannelUnavailable {..}) = nodes[0].node.send_payment(route_1, payment_hash) {} - else { panic!("New sends should fail!") }; - if let Err(APIError::ChannelUnavailable {..}) = nodes[1].node.send_payment(route_2, payment_hash) {} - else { panic!("New sends should fail!") }; - - assert!(nodes[2].node.claim_funds(our_payment_preimage)); - check_added_monitors!(nodes[2], 1); - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); - check_added_monitors!(nodes[1], 1); - let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false); - - assert!(updates_2.update_add_htlcs.is_empty()); - assert!(updates_2.update_fail_htlcs.is_empty()); - assert!(updates_2.update_fail_malformed_htlcs.is_empty()); - assert!(updates_2.update_fee.is_none()); - assert_eq!(updates_2.update_fulfill_htlcs.len(), 1); - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fulfill_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(our_payment_preimage, *payment_preimage); - }, - _ => panic!("Unexpected event"), - } - - let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed).unwrap(); - let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap()).unwrap(); - let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id()); - assert!(node_0_none.is_none()); - - assert!(nodes[0].node.list_channels().is_empty()); - - assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1); - nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear(); - close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true); - assert!(nodes[1].node.list_channels().is_empty()); - assert!(nodes[2].node.list_channels().is_empty()); - } - - #[test] - fn htlc_fail_async_shutdown() { - // Test HTLCs fail if shutdown starts even if messages are delivered out-of-order - let mut nodes = create_network(3); - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV).unwrap(); - let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); - nodes[0].node.send_payment(route, our_payment_hash).unwrap(); - check_added_monitors!(nodes[0], 1); - let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - assert_eq!(updates.update_add_htlcs.len(), 1); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - - nodes[1].node.close_channel(&chan_1.2).unwrap(); - let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown).unwrap(); - let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()); - - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &updates.commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], (), false, true, false); - - let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(updates_2.update_add_htlcs.is_empty()); - assert!(updates_2.update_fulfill_htlcs.is_empty()); - assert_eq!(updates_2.update_fail_htlcs.len(), 1); - assert!(updates_2.update_fail_malformed_htlcs.is_empty()); - assert!(updates_2.update_fee.is_none()); - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fail_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentFailed { ref payment_hash, ref rejected_by_dest, .. } => { - assert_eq!(our_payment_hash, *payment_hash); - assert!(!rejected_by_dest); - }, - _ => panic!("Unexpected event"), - } - - let msg_events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(msg_events.len(), 2); - let node_0_closing_signed = match msg_events[0] { - MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => { - assert_eq!(*node_id, nodes[1].node.get_our_node_id()); - (*msg).clone() - }, - _ => panic!("Unexpected event"), - }; - match msg_events[1] { - MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { ref msg }} => { - assert_eq!(msg.contents.short_channel_id, chan_1.0.contents.short_channel_id); - }, - _ => panic!("Unexpected event"), - } - - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed).unwrap(); - let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap()).unwrap(); - let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id()); - assert!(node_0_none.is_none()); - - assert!(nodes[0].node.list_channels().is_empty()); - - assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1); - nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear(); - close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true); - assert!(nodes[1].node.list_channels().is_empty()); - assert!(nodes[2].node.list_channels().is_empty()); - } - - fn do_test_shutdown_rebroadcast(recv_count: u8) { - // Test that shutdown/closing_signed is re-sent on reconnect with a variable number of - // messages delivered prior to disconnect - let nodes = create_network(3); - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100000); - - nodes[1].node.close_channel(&chan_1.2).unwrap(); - let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id()); - if recv_count > 0 { - nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown).unwrap(); - let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()); - if recv_count > 1 { - nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown).unwrap(); - } - } - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let node_0_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id()); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - let node_1_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()); - - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_reestablish).unwrap(); - let node_1_2nd_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id()); - assert!(node_1_shutdown == node_1_2nd_shutdown); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &node_1_reestablish).unwrap(); - let node_0_2nd_shutdown = if recv_count > 0 { - let node_0_2nd_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()); - nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_2nd_shutdown).unwrap(); - node_0_2nd_shutdown - } else { - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_2nd_shutdown).unwrap(); - get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()) - }; - nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_2nd_shutdown).unwrap(); - - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - assert!(nodes[2].node.claim_funds(our_payment_preimage)); - check_added_monitors!(nodes[2], 1); - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); - check_added_monitors!(nodes[1], 1); - let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false); - - assert!(updates_2.update_add_htlcs.is_empty()); - assert!(updates_2.update_fail_htlcs.is_empty()); - assert!(updates_2.update_fail_malformed_htlcs.is_empty()); - assert!(updates_2.update_fee.is_none()); - assert_eq!(updates_2.update_fulfill_htlcs.len(), 1); - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fulfill_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(our_payment_preimage, *payment_preimage); - }, - _ => panic!("Unexpected event"), - } - - let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id()); - if recv_count > 0 { - nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed).unwrap(); - let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id()); - assert!(node_1_closing_signed.is_some()); - } - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let node_0_2nd_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id()); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - if recv_count == 0 { - // If all closing_signeds weren't delivered we can just resume where we left off... - let node_1_2nd_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &node_1_2nd_reestablish).unwrap(); - let node_0_3rd_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()); - assert!(node_0_2nd_shutdown == node_0_3rd_shutdown); - - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_2nd_reestablish).unwrap(); - let node_1_3rd_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id()); - assert!(node_1_3rd_shutdown == node_1_2nd_shutdown); - - nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_3rd_shutdown).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_3rd_shutdown).unwrap(); - let node_0_2nd_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id()); - assert!(node_0_closing_signed == node_0_2nd_closing_signed); - - nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed).unwrap(); - let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap()).unwrap(); - let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id()); - assert!(node_0_none.is_none()); - } else { - // If one node, however, received + responded with an identical closing_signed we end - // up erroring and node[0] will try to broadcast its own latest commitment transaction. - // There isn't really anything better we can do simply, but in the future we might - // explore storing a set of recently-closed channels that got disconnected during - // closing_signed and avoiding broadcasting local commitment txn for some timeout to - // give our counterparty enough time to (potentially) broadcast a cooperative closing - // transaction. - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - if let Err(msgs::HandleError{action: Some(msgs::ErrorAction::SendErrorMessage{msg}), ..}) = - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_2nd_reestablish) { - nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &msg); - let msgs::ErrorMessage {ref channel_id, ..} = msg; - assert_eq!(*channel_id, chan_1.2); - } else { panic!("Needed SendErrorMessage close"); } - - // get_closing_signed_broadcast usually eats the BroadcastChannelUpdate for us and - // checks it, but in this case nodes[0] didn't ever get a chance to receive a - // closing_signed so we do it ourselves - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { ref msg } => { - assert_eq!(msg.contents.flags & 2, 2); - }, - _ => panic!("Unexpected event"), - } - } - - assert!(nodes[0].node.list_channels().is_empty()); - - assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1); - nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear(); - close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true); - assert!(nodes[1].node.list_channels().is_empty()); - assert!(nodes[2].node.list_channels().is_empty()); - } - - #[test] - fn test_shutdown_rebroadcast() { - do_test_shutdown_rebroadcast(0); - do_test_shutdown_rebroadcast(1); - do_test_shutdown_rebroadcast(2); - } - - #[test] - fn fake_network_test() { - // Simple test which builds a network of ChannelManagers, connects them to each other, and - // tests that payments get routed and transactions broadcast in semi-reasonable ways. - let nodes = create_network(4); - - // 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); - - // Rebalance the network a bit by relaying one payment through all the channels... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); - - // Send some more payments - send_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 1000000); - send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1], &nodes[0])[..], 1000000); - send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1])[..], 1000000); - - // Test failure packets - 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); - - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 1000000); - send_payment(&nodes[2], &vec!(&nodes[3])[..], 1000000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); - - // Do some rebalance loop payments, simultaneously - let mut hops = Vec::with_capacity(3); - hops.push(RouteHop { - pubkey: nodes[2].node.get_our_node_id(), - short_channel_id: chan_2.0.contents.short_channel_id, - fee_msat: 0, - cltv_expiry_delta: chan_3.0.contents.cltv_expiry_delta as u32 - }); - hops.push(RouteHop { - pubkey: nodes[3].node.get_our_node_id(), - short_channel_id: chan_3.0.contents.short_channel_id, - fee_msat: 0, - cltv_expiry_delta: chan_4.1.contents.cltv_expiry_delta as u32 - }); - hops.push(RouteHop { - pubkey: nodes[1].node.get_our_node_id(), - short_channel_id: chan_4.0.contents.short_channel_id, - fee_msat: 1000000, - 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; - let payment_preimage_1 = send_along_route(&nodes[1], Route { hops }, &vec!(&nodes[2], &nodes[3], &nodes[1])[..], 1000000).0; - - let mut hops = Vec::with_capacity(3); - hops.push(RouteHop { - pubkey: nodes[3].node.get_our_node_id(), - short_channel_id: chan_4.0.contents.short_channel_id, - fee_msat: 0, - cltv_expiry_delta: chan_3.1.contents.cltv_expiry_delta as u32 - }); - hops.push(RouteHop { - pubkey: nodes[2].node.get_our_node_id(), - short_channel_id: chan_3.0.contents.short_channel_id, - fee_msat: 0, - cltv_expiry_delta: chan_2.1.contents.cltv_expiry_delta as u32 - }); - hops.push(RouteHop { - pubkey: nodes[1].node.get_our_node_id(), - short_channel_id: chan_2.0.contents.short_channel_id, - fee_msat: 1000000, - 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_hash_2 = send_along_route(&nodes[1], Route { hops }, &vec!(&nodes[3], &nodes[2], &nodes[1])[..], 1000000).1; - - // Claim the rebalances... - 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 - let chan_5 = create_announced_chan_between_nodes(&nodes, 1, 3); - - // Send some payments across both channels - let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000).0; - let payment_preimage_4 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000).0; - let payment_preimage_5 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000).0; - - route_over_limit(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000); - - //TODO: Test that routes work again here as we've been notified that the channel is full - - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_3); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_4); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_5); - - // Close down the channels... - close_channel(&nodes[0], &nodes[1], &chan_1.2, chan_1.3, true); - close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, false); - close_channel(&nodes[2], &nodes[3], &chan_3.2, chan_3.3, true); - close_channel(&nodes[1], &nodes[3], &chan_4.2, chan_4.3, false); - close_channel(&nodes[1], &nodes[3], &chan_5.2, chan_5.3, false); - } - - #[test] - fn duplicate_htlc_test() { - // Test that we accept duplicate payment_hash HTLCs across the network and that - // claiming/failing them are all separate and don't effect each other - let mut nodes = create_network(6); - - // Create some initial channels to route via 3 to 4/5 from 0/1/2 - create_announced_chan_between_nodes(&nodes, 0, 3); - create_announced_chan_between_nodes(&nodes, 1, 3); - create_announced_chan_between_nodes(&nodes, 2, 3); - create_announced_chan_between_nodes(&nodes, 3, 4); - create_announced_chan_between_nodes(&nodes, 3, 5); - - let (payment_preimage, payment_hash) = route_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], 1000000); - - *nodes[0].network_payment_count.borrow_mut() -= 1; - assert_eq!(route_payment(&nodes[1], &vec!(&nodes[3])[..], 1000000).0, payment_preimage); - - *nodes[0].network_payment_count.borrow_mut() -= 1; - assert_eq!(route_payment(&nodes[2], &vec!(&nodes[3], &nodes[5])[..], 1000000).0, payment_preimage); - - claim_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], payment_preimage); - fail_payment(&nodes[2], &vec!(&nodes[3], &nodes[5])[..], payment_hash); - claim_payment(&nodes[1], &vec!(&nodes[3])[..], payment_preimage); - } - - #[derive(PartialEq)] - enum HTLCType { NONE, TIMEOUT, SUCCESS } - /// Tests that the given node has broadcast transactions for the given Channel - /// - /// First checks that the latest local commitment tx has been broadcast, unless an explicit - /// commitment_tx is provided, which may be used to test that a remote commitment tx was - /// broadcast and the revoked outputs were claimed. - /// - /// Next tests that there is (or is not) a transaction that spends the commitment transaction - /// that appears to be the type of HTLC transaction specified in has_htlc_tx. - /// - /// All broadcast transactions must be accounted for in one of the above three types of we'll - /// also fail. - fn test_txn_broadcast(node: &Node, chan: &(msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction), commitment_tx: Option, has_htlc_tx: HTLCType) -> Vec { - 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); - node_txn.retain(|tx| { - if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() { - check_spends!(tx, chan.3.clone()); - if commitment_tx.is_none() { - res.push(tx.clone()); - } - false - } else { true } - }); - if let Some(explicit_tx) = commitment_tx { - res.push(explicit_tx.clone()); - } - - assert_eq!(res.len(), 1); - - if has_htlc_tx != HTLCType::NONE { - node_txn.retain(|tx| { - if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() { - check_spends!(tx, res[0].clone()); - if has_htlc_tx == HTLCType::TIMEOUT { - assert!(tx.lock_time != 0); - } else { - assert!(tx.lock_time == 0); - } - res.push(tx.clone()); - false - } else { true } - }); - assert!(res.len() == 2 || res.len() == 3); - if res.len() == 3 { - assert_eq!(res[1], res[2]); - } - } - - assert!(node_txn.is_empty()); - res - } - - /// Tests that the given node has broadcast a claim transaction against the provided revoked - /// HTLC transaction. - fn test_revoked_htlc_claim_txn_broadcast(node: &Node, revoked_tx: Transaction) { - let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 1); - node_txn.retain(|tx| { - if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() { - check_spends!(tx, revoked_tx.clone()); - false - } else { true } - }); - assert!(node_txn.is_empty()); - } - - fn check_preimage_claim(node: &Node, prev_txn: &Vec) -> Vec { - 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() { - check_spends!(node_txn[0], tx.clone()); - 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, a: usize, b: usize) { - let events_1 = nodes[a].node.get_and_clear_pending_msg_events(); - assert_eq!(events_1.len(), 1); - let as_update = match events_1[0] { - MessageSendEvent::BroadcastChannelUpdate { ref msg } => { - msg.clone() - }, - _ => panic!("Unexpected event"), - }; - - let events_2 = nodes[b].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - let bs_update = match events_2[0] { - MessageSendEvent::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(); - } - } - - macro_rules! expect_pending_htlcs_forwardable { - ($node: expr) => {{ - let events = $node.node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - $node.node.channel_state.lock().unwrap().next_forward = Instant::now(); - $node.node.process_pending_htlc_forwards(); - }} - } - - fn do_channel_reserve_test(test_recv: bool) { - use util::rng; - use std::sync::atomic::Ordering; - use ln::msgs::HandleError; - - macro_rules! get_channel_value_stat { - ($node: expr, $channel_id: expr) => {{ - let chan_lock = $node.node.channel_state.lock().unwrap(); - let chan = chan_lock.by_id.get(&$channel_id).unwrap(); - chan.get_value_stat() - }} - } - - let mut nodes = create_network(3); - let chan_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1900, 1001); - let chan_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1900, 1001); - - let mut stat01 = get_channel_value_stat!(nodes[0], chan_1.2); - let mut stat11 = get_channel_value_stat!(nodes[1], chan_1.2); - - let mut stat12 = get_channel_value_stat!(nodes[1], chan_2.2); - let mut stat22 = get_channel_value_stat!(nodes[2], chan_2.2); - - macro_rules! get_route_and_payment_hash { - ($recv_value: expr) => {{ - let route = nodes[0].router.get_route(&nodes.last().unwrap().node.get_our_node_id(), None, &Vec::new(), $recv_value, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage, payment_hash) = get_payment_preimage_hash!(nodes[0]); - (route, payment_hash, payment_preimage) - }} - }; - - macro_rules! expect_forward { - ($node: expr) => {{ - let mut events = $node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - check_added_monitors!($node, 1); - let payment_event = SendEvent::from_event(events.remove(0)); - payment_event - }} - } - - macro_rules! expect_payment_received { - ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => { - let events = $node.node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!($expected_payment_hash, *payment_hash); - assert_eq!($expected_recv_value, amt); - }, - _ => panic!("Unexpected event"), - } - } - }; - - let feemsat = 239; // somehow we know? - let total_fee_msat = (nodes.len() - 2) as u64 * 239; - - let recv_value_0 = stat01.their_max_htlc_value_in_flight_msat - total_fee_msat; - - // attempt to send amt_msat > their_max_htlc_value_in_flight_msat - { - let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_0 + 1); - assert!(route.hops.iter().rev().skip(1).all(|h| h.fee_msat == feemsat)); - let err = nodes[0].node.send_payment(route, our_payment_hash).err().unwrap(); - match err { - APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over our max HTLC value in flight"), - _ => panic!("Unknown error variants"), - } - } - - let mut htlc_id = 0; - // channel reserve is bigger than their_max_htlc_value_in_flight_msat so loop to deplete - // nodes[0]'s wealth - loop { - let amt_msat = recv_value_0 + total_fee_msat; - if stat01.value_to_self_msat - amt_msat < stat01.channel_reserve_msat { - break; - } - send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_0); - htlc_id += 1; - - let (stat01_, stat11_, stat12_, stat22_) = ( - get_channel_value_stat!(nodes[0], chan_1.2), - get_channel_value_stat!(nodes[1], chan_1.2), - get_channel_value_stat!(nodes[1], chan_2.2), - get_channel_value_stat!(nodes[2], chan_2.2), - ); - - assert_eq!(stat01_.value_to_self_msat, stat01.value_to_self_msat - amt_msat); - assert_eq!(stat11_.value_to_self_msat, stat11.value_to_self_msat + amt_msat); - assert_eq!(stat12_.value_to_self_msat, stat12.value_to_self_msat - (amt_msat - feemsat)); - assert_eq!(stat22_.value_to_self_msat, stat22.value_to_self_msat + (amt_msat - feemsat)); - stat01 = stat01_; stat11 = stat11_; stat12 = stat12_; stat22 = stat22_; - } - - { - let recv_value = stat01.value_to_self_msat - stat01.channel_reserve_msat - total_fee_msat; - // attempt to get channel_reserve violation - let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value + 1); - let err = nodes[0].node.send_payment(route.clone(), our_payment_hash).err().unwrap(); - match err { - APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over our reserve value"), - _ => panic!("Unknown error variants"), - } - } - - // adding pending output - let recv_value_1 = (stat01.value_to_self_msat - stat01.channel_reserve_msat - total_fee_msat)/2; - let amt_msat_1 = recv_value_1 + total_fee_msat; - - let (route_1, our_payment_hash_1, our_payment_preimage_1) = get_route_and_payment_hash!(recv_value_1); - let payment_event_1 = { - nodes[0].node.send_payment(route_1, our_payment_hash_1).unwrap(); - check_added_monitors!(nodes[0], 1); - - let mut events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - SendEvent::from_event(events.remove(0)) - }; - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event_1.msgs[0]).unwrap(); - - // channel reserve test with htlc pending output > 0 - let recv_value_2 = stat01.value_to_self_msat - amt_msat_1 - stat01.channel_reserve_msat - total_fee_msat; - { - let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_2 + 1); - match nodes[0].node.send_payment(route, our_payment_hash).err().unwrap() { - APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over our reserve value"), - _ => panic!("Unknown error variants"), - } - } - - { - // test channel_reserve test on nodes[1] side - let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_2 + 1); - - // Need to manually create update_add_htlc message to go around the channel reserve check in send_htlc() - let secp_ctx = Secp256k1::new(); - let session_priv = SecretKey::from_slice(&secp_ctx, &{ - let mut session_key = [0; 32]; - rng::fill_bytes(&mut session_key); - session_key - }).expect("RNG is bad!"); - - let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1; - let onion_keys = ChannelManager::construct_onion_keys(&secp_ctx, &route, &session_priv).unwrap(); - let (onion_payloads, htlc_msat, htlc_cltv) = ChannelManager::build_onion_payloads(&route, cur_height).unwrap(); - let onion_packet = ChannelManager::construct_onion_packet(onion_payloads, onion_keys, &our_payment_hash); - let msg = msgs::UpdateAddHTLC { - channel_id: chan_1.2, - htlc_id, - amount_msat: htlc_msat, - payment_hash: our_payment_hash, - cltv_expiry: htlc_cltv, - onion_routing_packet: onion_packet, - }; - - if test_recv { - let err = nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg).err().unwrap(); - match err { - HandleError{err, .. } => assert_eq!(err, "Remote HTLC add would put them over their reserve value"), - } - // If we send a garbage message, the channel should get closed, making the rest of this test case fail. - assert_eq!(nodes[1].node.list_channels().len(), 1); - assert_eq!(nodes[1].node.list_channels().len(), 1); - let channel_close_broadcast = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(channel_close_broadcast.len(), 1); - match channel_close_broadcast[0] { - MessageSendEvent::BroadcastChannelUpdate { ref msg } => { - assert_eq!(msg.contents.flags & 2, 2); - }, - _ => panic!("Unexpected event"), - } - return; - } - } - - // split the rest to test holding cell - let recv_value_21 = recv_value_2/2; - let recv_value_22 = recv_value_2 - recv_value_21 - total_fee_msat; - { - let stat = get_channel_value_stat!(nodes[0], chan_1.2); - assert_eq!(stat.value_to_self_msat - (stat.pending_outbound_htlcs_amount_msat + recv_value_21 + recv_value_22 + total_fee_msat + total_fee_msat), stat.channel_reserve_msat); - } - - // now see if they go through on both sides - let (route_21, our_payment_hash_21, our_payment_preimage_21) = get_route_and_payment_hash!(recv_value_21); - // but this will stuck in the holding cell - nodes[0].node.send_payment(route_21, our_payment_hash_21).unwrap(); - check_added_monitors!(nodes[0], 0); - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 0); - - // test with outbound holding cell amount > 0 - { - let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_22+1); - match nodes[0].node.send_payment(route, our_payment_hash).err().unwrap() { - APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over our reserve value"), - _ => panic!("Unknown error variants"), - } - } - - let (route_22, our_payment_hash_22, our_payment_preimage_22) = get_route_and_payment_hash!(recv_value_22); - // this will also stuck in the holding cell - nodes[0].node.send_payment(route_22, our_payment_hash_22).unwrap(); - check_added_monitors!(nodes[0], 0); - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - - // flush the pending htlc - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event_1.commitment_msg).unwrap(); - let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - check_added_monitors!(nodes[0], 1); - let commitment_update_2 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &as_commitment_signed).unwrap(); - let bs_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - expect_pending_htlcs_forwardable!(nodes[1]); - - let ref payment_event_11 = expect_forward!(nodes[1]); - nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_11.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[2], nodes[1], payment_event_11.commitment_msg, false); - - expect_pending_htlcs_forwardable!(nodes[2]); - expect_payment_received!(nodes[2], our_payment_hash_1, recv_value_1); - - // flush the htlcs in the holding cell - assert_eq!(commitment_update_2.update_add_htlcs.len(), 2); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &commitment_update_2.update_add_htlcs[0]).unwrap(); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &commitment_update_2.update_add_htlcs[1]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], &commitment_update_2.commitment_signed, false); - expect_pending_htlcs_forwardable!(nodes[1]); - - let ref payment_event_3 = expect_forward!(nodes[1]); - assert_eq!(payment_event_3.msgs.len(), 2); - nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_3.msgs[0]).unwrap(); - nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_3.msgs[1]).unwrap(); - - commitment_signed_dance!(nodes[2], nodes[1], &payment_event_3.commitment_msg, false); - expect_pending_htlcs_forwardable!(nodes[2]); - - let events = nodes[2].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 2); - match events[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(our_payment_hash_21, *payment_hash); - assert_eq!(recv_value_21, amt); - }, - _ => panic!("Unexpected event"), - } - match events[1] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(our_payment_hash_22, *payment_hash); - assert_eq!(recv_value_22, amt); - }, - _ => panic!("Unexpected event"), - } - - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_1); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_21); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_22); - - let expected_value_to_self = stat01.value_to_self_msat - (recv_value_1 + total_fee_msat) - (recv_value_21 + total_fee_msat) - (recv_value_22 + total_fee_msat); - let stat0 = get_channel_value_stat!(nodes[0], chan_1.2); - assert_eq!(stat0.value_to_self_msat, expected_value_to_self); - assert_eq!(stat0.value_to_self_msat, stat0.channel_reserve_msat); - - let stat2 = get_channel_value_stat!(nodes[2], chan_2.2); - assert_eq!(stat2.value_to_self_msat, stat22.value_to_self_msat + recv_value_1 + recv_value_21 + recv_value_22); - } - - #[test] - fn channel_reserve_test() { - do_channel_reserve_test(false); - do_channel_reserve_test(true); - } - - #[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($preimage)); - check_added_monitors!($node, 1); - - let events = $node.node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, .. } } => { - assert!(update_add_htlcs.is_empty()); - assert!(update_fail_htlcs.is_empty()); - 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); - - { // Cheat and reset nodes[4]'s height to 1 - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - nodes[4].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![] }, 1); - } - - assert_eq!(nodes[3].node.latest_block_height.load(Ordering::Acquire), 1); - assert_eq!(nodes[4].node.latest_block_height.load(Ordering::Acquire), 1); - // One pending HTLC to time out: - let payment_preimage_2 = route_payment(&nodes[3], &vec!(&nodes[4])[..], 3000000).0; - // CLTV expires at TEST_FINAL_CLTV + 1 (current height) + 1 (added in send_payment for - // buffer space). - - { - 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, 2, &Vec::new()[..], &[0; 0]); - for i in 3..TEST_FINAL_CLTV + 2 + HTLC_FAIL_TIMEOUT_BLOCKS + 1 { - 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[4], 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, 2, &Vec::new()[..], &[0; 0]); - for i in 3..TEST_FINAL_CLTV + 2 - CLTV_CLAIM_BUFFER + 1 { - 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); - } - - #[test] - fn test_justice_tx() { - // Test justice txn built on revoked HTLC-Success tx, against both sides - - let nodes = create_network(2); - // 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(); - assert_eq!(revoked_local_txn.len(), 2); // First commitment tx, then HTLC tx - assert_eq!(revoked_local_txn[0].input.len(), 1); - assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_5.3.txid()); - assert_eq!(revoked_local_txn[0].output.len(), 2); // Only HTLC and output back to 0 are present - assert_eq!(revoked_local_txn[1].input.len(), 1); - assert_eq!(revoked_local_txn[1].input[0].previous_output.txid, revoked_local_txn[0].txid()); - assert_eq!(revoked_local_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC-Timeout - // 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(), 3); - assert_eq!(node_txn.pop().unwrap(), node_txn[0]); // An outpoint registration will result in a 2nd block_connected - assert_eq!(node_txn[0].input.len(), 2); // We should claim the revoked output and the HTLC output - - check_spends!(node_txn[0], revoked_local_txn[0].clone()); - 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); - test_revoked_htlc_claim_txn_broadcast(&nodes[1], node_txn[1].clone()); - } - 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); - - // We test justice_tx build by A on B's revoked HTLC-Success tx - // Create some new channels: - let chan_6 = create_announced_chan_between_nodes(&nodes, 0, 1); - - // A pending HTLC which will be revoked: - let payment_preimage_4 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - // Get the will-be-revoked local txn from B - let revoked_local_txn = nodes[1].node.channel_state.lock().unwrap().by_id.iter().next().unwrap().1.last_local_commitment_txn.clone(); - assert_eq!(revoked_local_txn.len(), 1); // Only commitment tx - assert_eq!(revoked_local_txn[0].input.len(), 1); - assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_6.3.txid()); - assert_eq!(revoked_local_txn[0].output.len(), 2); // Only HTLC and output back to A are present - // Revoke the old state - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_4); - { - let mut 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![revoked_local_txn[0].clone()] }, 1); - { - let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 3); - assert_eq!(node_txn.pop().unwrap(), node_txn[0]); // An outpoint registration will result in a 2nd block_connected - assert_eq!(node_txn[0].input.len(), 1); // We claim the received HTLC output - - check_spends!(node_txn[0], revoked_local_txn[0].clone()); - node_txn.swap_remove(0); - } - test_txn_broadcast(&nodes[0], &chan_6, None, HTLCType::NONE); - - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1); - let node_txn = test_txn_broadcast(&nodes[1], &chan_6, Some(revoked_local_txn[0].clone()), HTLCType::SUCCESS); - header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn[1].clone()] }, 1); - test_revoked_htlc_claim_txn_broadcast(&nodes[0], node_txn[1].clone()); - } - 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); - } - - #[test] - fn revoked_output_claim() { - // Simple test to ensure a node will claim a revoked output when a stale remote commitment - // transaction is broadcast by its counterparty - let nodes = create_network(2); - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - // node[0] is gonna to revoke an old state thus node[1] should be able to claim the revoked output - let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(revoked_local_txn.len(), 1); - // Only output is the full channel value back to nodes[0]: - assert_eq!(revoked_local_txn[0].output.len(), 1); - // Send a payment through, updating everyone's latest commitment txn - send_payment(&nodes[0], &vec!(&nodes[1])[..], 5000000); - - // Inform nodes[1] that nodes[0] broadcast a stale tx - let 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 node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 3); // nodes[1] will broadcast justice tx twice, and its own local state once - - assert_eq!(node_txn[0], node_txn[2]); - - check_spends!(node_txn[0], revoked_local_txn[0].clone()); - check_spends!(node_txn[1], chan_1.3.clone()); - - // Inform nodes[0] that a watchtower cheated on its behalf, so it will force-close the chan - nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1); - get_announce_close_broadcast_events(&nodes, 0, 1); - } - - #[test] - fn claim_htlc_outputs_shared_tx() { - // Node revoked old state, htlcs haven't time out yet, claim them in shared justice tx - let nodes = create_network(2); - - // Create some new channel: - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - // Rebalance the network to generate htlc in the two directions - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); - // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx - let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - let (_payment_preimage_2, payment_hash_2) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000); - - // Get the will-be-revoked local txn from node[0] - let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(revoked_local_txn.len(), 2); // commitment tx + 1 HTLC-Timeout tx - assert_eq!(revoked_local_txn[0].input.len(), 1); - assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid()); - assert_eq!(revoked_local_txn[1].input.len(), 1); - assert_eq!(revoked_local_txn[1].input[0].previous_output.txid, revoked_local_txn[0].txid()); - assert_eq!(revoked_local_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC-Timeout - check_spends!(revoked_local_txn[1], revoked_local_txn[0].clone()); - - //Revoke the old state - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1); - - { - 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![revoked_local_txn[0].clone()] }, 1); - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1); - - let events = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentFailed { payment_hash, .. } => { - assert_eq!(payment_hash, payment_hash_2); - }, - _ => panic!("Unexpected event"), - } - - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 4); - - assert_eq!(node_txn[0].input.len(), 3); // Claim the revoked output + both revoked HTLC outputs - check_spends!(node_txn[0], revoked_local_txn[0].clone()); - - assert_eq!(node_txn[0], node_txn[3]); // justice tx is duplicated due to block re-scanning - - let mut witness_lens = BTreeSet::new(); - witness_lens.insert(node_txn[0].input[0].witness.last().unwrap().len()); - witness_lens.insert(node_txn[0].input[1].witness.last().unwrap().len()); - witness_lens.insert(node_txn[0].input[2].witness.last().unwrap().len()); - assert_eq!(witness_lens.len(), 3); - assert_eq!(*witness_lens.iter().skip(0).next().unwrap(), 77); // revoked to_local - assert_eq!(*witness_lens.iter().skip(1).next().unwrap(), OFFERED_HTLC_SCRIPT_WEIGHT); // revoked offered HTLC - assert_eq!(*witness_lens.iter().skip(2).next().unwrap(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // revoked received HTLC - - // Next nodes[1] broadcasts its current local tx state: - assert_eq!(node_txn[1].input.len(), 1); - assert_eq!(node_txn[1].input[0].previous_output.txid, chan_1.3.txid()); //Spending funding tx unique txouput, tx broadcasted by ChannelManager - - assert_eq!(node_txn[2].input.len(), 1); - let witness_script = node_txn[2].clone().input[0].witness.pop().unwrap(); - assert_eq!(witness_script.len(), OFFERED_HTLC_SCRIPT_WEIGHT); //Spending an offered htlc output - assert_eq!(node_txn[2].input[0].previous_output.txid, node_txn[1].txid()); - assert_ne!(node_txn[2].input[0].previous_output.txid, node_txn[0].input[0].previous_output.txid); - assert_ne!(node_txn[2].input[0].previous_output.txid, node_txn[0].input[1].previous_output.txid); - } - 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); - } - - #[test] - fn claim_htlc_outputs_single_tx() { - // Node revoked old state, htlcs have timed out, claim each of them in separated justice tx - let nodes = create_network(2); - - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - // Rebalance the network to generate htlc in the two directions - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); - // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx, but this - // time as two different claim transactions as we're gonna to timeout htlc with given a high current height - let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - let (_payment_preimage_2, payment_hash_2) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000); - - // Get the will-be-revoked local txn from node[0] - let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - - //Revoke the old state - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1); - - { - 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![revoked_local_txn[0].clone()] }, 200); - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 200); - - let events = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentFailed { payment_hash, .. } => { - assert_eq!(payment_hash, payment_hash_2); - }, - _ => panic!("Unexpected event"), - } - - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 12); // ChannelManager : 2, ChannelMontitor: 8 (1 standard revoked output, 2 revocation htlc tx, 1 local commitment tx + 1 htlc timeout tx) * 2 (block-rescan) - - assert_eq!(node_txn[0], node_txn[7]); - assert_eq!(node_txn[1], node_txn[8]); - assert_eq!(node_txn[2], node_txn[9]); - assert_eq!(node_txn[3], node_txn[10]); - assert_eq!(node_txn[4], node_txn[11]); - assert_eq!(node_txn[3], node_txn[5]); //local commitment tx + htlc timeout tx broadcated by ChannelManger - assert_eq!(node_txn[4], node_txn[6]); - - assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[1].input.len(), 1); - assert_eq!(node_txn[2].input.len(), 1); - - let mut revoked_tx_map = HashMap::new(); - revoked_tx_map.insert(revoked_local_txn[0].txid(), revoked_local_txn[0].clone()); - node_txn[0].verify(&revoked_tx_map).unwrap(); - node_txn[1].verify(&revoked_tx_map).unwrap(); - node_txn[2].verify(&revoked_tx_map).unwrap(); - - let mut witness_lens = BTreeSet::new(); - witness_lens.insert(node_txn[0].input[0].witness.last().unwrap().len()); - witness_lens.insert(node_txn[1].input[0].witness.last().unwrap().len()); - witness_lens.insert(node_txn[2].input[0].witness.last().unwrap().len()); - assert_eq!(witness_lens.len(), 3); - assert_eq!(*witness_lens.iter().skip(0).next().unwrap(), 77); // revoked to_local - assert_eq!(*witness_lens.iter().skip(1).next().unwrap(), OFFERED_HTLC_SCRIPT_WEIGHT); // revoked offered HTLC - assert_eq!(*witness_lens.iter().skip(2).next().unwrap(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // revoked received HTLC - - assert_eq!(node_txn[3].input.len(), 1); - check_spends!(node_txn[3], chan_1.3.clone()); - - assert_eq!(node_txn[4].input.len(), 1); - let witness_script = node_txn[4].input[0].witness.last().unwrap(); - assert_eq!(witness_script.len(), OFFERED_HTLC_SCRIPT_WEIGHT); //Spending an offered htlc output - assert_eq!(node_txn[4].input[0].previous_output.txid, node_txn[3].txid()); - assert_ne!(node_txn[4].input[0].previous_output.txid, node_txn[0].input[0].previous_output.txid); - assert_ne!(node_txn[4].input[0].previous_output.txid, node_txn[1].input[0].previous_output.txid); - } - 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); - } - - #[test] - fn test_htlc_on_chain_success() { - // Test that in case of an unilateral close onchain, we detect the state of output thanks to - // ChainWatchInterface and pass the preimage backward accordingly. So here we test that ChannelManager is - // broadcasting the right event to other nodes in payment path. - // A --------------------> B ----------------------> C (preimage) - // First, C should claim the HTLC output via HTLC-Success when its own latest local - // commitment transaction was broadcast. - // Then, B should learn the preimage from said transactions, attempting to claim backwards - // towards B. - // B should be able to claim via preimage if A then broadcasts its local tx. - // Finally, when A sees B's latest local commitment transaction it should be able to claim - // the HTLC output via the preimage it learned (which, once confirmed should generate a - // PaymentSent event). - - let nodes = create_network(3); - - // 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); - - // Rebalance the network a bit by relaying one payment through all the channels... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); - - let (our_payment_preimage, _payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000); - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42}; - - // Broadcast legit commitment tx from C on B's chain - // Broadcast HTLC Success transation by C on received output from C's commitment tx on B's chain - let commitment_tx = nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(commitment_tx.len(), 1); - check_spends!(commitment_tx[0], chan_2.3.clone()); - nodes[2].node.claim_funds(our_payment_preimage); - check_added_monitors!(nodes[2], 1); - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - - nodes[2].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1); - let events = nodes[2].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 1 (commitment tx), ChannelMonitor : 2 (2 * HTLC-Success tx) - assert_eq!(node_txn.len(), 3); - assert_eq!(node_txn[1], commitment_tx[0]); - assert_eq!(node_txn[0], node_txn[2]); - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert_eq!(node_txn[0].lock_time, 0); - - // Verify that B's ChannelManager is able to extract preimage from HTLC Success tx and pass it backward - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: node_txn}, 1); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - { - let mut added_monitors = nodes[1].chan_monitor.added_monitors.lock().unwrap(); - assert_eq!(added_monitors.len(), 1); - assert_eq!(added_monitors[0].0.txid, chan_1.3.txid()); - added_monitors.clear(); - } - assert_eq!(events.len(), 2); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - match events[1] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, .. } } => { - assert!(update_add_htlcs.is_empty()); - assert!(update_fail_htlcs.is_empty()); - assert_eq!(update_fulfill_htlcs.len(), 1); - assert!(update_fail_malformed_htlcs.is_empty()); - assert_eq!(nodes[0].node.get_our_node_id(), *node_id); - }, - _ => panic!("Unexpected event"), - }; - { - // nodes[1] now broadcasts its own local state as a fallback, suggesting an alternate - // commitment transaction with a corresponding HTLC-Timeout transaction, as well as a - // timeout-claim of the output that nodes[2] just claimed via success. - let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); // ChannelManager : 2 (commitment tx, HTLC-Timeout tx), ChannelMonitor : 1 (timeout tx) * 2 (block-rescan) - assert_eq!(node_txn.len(), 4); - assert_eq!(node_txn[0], node_txn[3]); - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert_ne!(node_txn[0].lock_time, 0); - assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment - check_spends!(node_txn[1], chan_2.3.clone()); - check_spends!(node_txn[2], node_txn[1].clone()); - assert_eq!(node_txn[1].input[0].witness.clone().last().unwrap().len(), 71); - assert_eq!(node_txn[2].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(node_txn[2].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert_ne!(node_txn[2].lock_time, 0); - node_txn.clear(); - } - - // Broadcast legit commitment tx from A on B's chain - // Broadcast preimage tx by B on offered output from A commitment tx on A's chain - let commitment_tx = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - check_spends!(commitment_tx[0], chan_1.3.clone()); - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 1 (commitment tx), ChannelMonitor : 1 (HTLC-Success) * 2 (block-rescan) - assert_eq!(node_txn.len(), 3); - assert_eq!(node_txn[0], node_txn[2]); - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert_eq!(node_txn[0].lock_time, 0); - assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment - check_spends!(node_txn[1], chan_1.3.clone()); - assert_eq!(node_txn[1].input[0].witness.clone().last().unwrap().len(), 71); - // We don't bother to check that B can claim the HTLC output on its commitment tx here as - // we already checked the same situation with A. - - // Verify that A's ChannelManager is able to extract preimage from preimage tx and generate PaymentSent - nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone(), node_txn[0].clone()] }, 1); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentSent { payment_preimage } => { - assert_eq!(payment_preimage, our_payment_preimage); - }, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 2 (commitment tx, HTLC-Timeout tx), ChannelMonitor : 1 (HTLC-Timeout tx) * 2 (block-rescan) - assert_eq!(node_txn.len(), 4); - assert_eq!(node_txn[0], node_txn[3]); - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert_ne!(node_txn[0].lock_time, 0); - assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - check_spends!(node_txn[1], chan_1.3.clone()); - check_spends!(node_txn[2], node_txn[1].clone()); - assert_eq!(node_txn[1].input[0].witness.clone().last().unwrap().len(), 71); - assert_eq!(node_txn[2].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(node_txn[2].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert_ne!(node_txn[2].lock_time, 0); - } - - #[test] - fn test_htlc_on_chain_timeout() { - // Test that in case of an unilateral close onchain, we detect the state of output thanks to - // ChainWatchInterface and timeout the HTLC bacward accordingly. So here we test that ChannelManager is - // broadcasting the right event to other nodes in payment path. - // A ------------------> B ----------------------> C (timeout) - // B's commitment tx C's commitment tx - // \ \ - // B's HTLC timeout tx B's timeout tx - - let nodes = create_network(3); - - // Create some intial channels - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - // Rebalance the network a bit by relaying one payment thorugh all the channels... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); - - let (_payment_preimage, payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000); - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42}; - - // Brodacast legit commitment tx from C on B's chain - let commitment_tx = nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().last_local_commitment_txn.clone(); - check_spends!(commitment_tx[0], chan_2.3.clone()); - nodes[2].node.fail_htlc_backwards(&payment_hash, 0); - { - let mut added_monitors = nodes[2].chan_monitor.added_monitors.lock().unwrap(); - assert_eq!(added_monitors.len(), 1); - added_monitors.clear(); - } - let events = nodes[2].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, .. } } => { - assert!(update_add_htlcs.is_empty()); - assert!(!update_fail_htlcs.is_empty()); - assert!(update_fulfill_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert_eq!(nodes[1].node.get_our_node_id(), *node_id); - }, - _ => panic!("Unexpected event"), - }; - nodes[2].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1); - let events = nodes[2].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { .. } } => {}, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 1 (commitment tx) - assert_eq!(node_txn.len(), 1); - check_spends!(node_txn[0], chan_2.3.clone()); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), 71); - - // Broadcast timeout transaction by B on received output fron C's commitment tx on B's chain - // Verify that B's ChannelManager is able to detect that HTLC is timeout by its own tx and react backward in consequence - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 200); - let timeout_tx; - { - let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 8); // ChannelManager : 2 (commitment tx, HTLC-Timeout tx), ChannelMonitor : 6 (HTLC-Timeout tx, commitment tx, timeout tx) * 2 (block-rescan) - assert_eq!(node_txn[0], node_txn[5]); - assert_eq!(node_txn[1], node_txn[6]); - assert_eq!(node_txn[2], node_txn[7]); - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0].clone().input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[1], chan_2.3.clone()); - check_spends!(node_txn[2], node_txn[1].clone()); - assert_eq!(node_txn[1].clone().input[0].witness.last().unwrap().len(), 71); - assert_eq!(node_txn[2].clone().input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[3], chan_2.3.clone()); - check_spends!(node_txn[4], node_txn[3].clone()); - assert_eq!(node_txn[3].input[0].witness.clone().last().unwrap().len(), 71); - assert_eq!(node_txn[4].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - timeout_tx = node_txn[0].clone(); - node_txn.clear(); - } - - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![timeout_tx]}, 1); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - check_added_monitors!(nodes[1], 1); - assert_eq!(events.len(), 2); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { .. } } => {}, - _ => panic!("Unexpected event"), - } - match events[1] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, .. } } => { - assert!(update_add_htlcs.is_empty()); - assert!(!update_fail_htlcs.is_empty()); - assert!(update_fulfill_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert_eq!(nodes[0].node.get_our_node_id(), *node_id); - }, - _ => panic!("Unexpected event"), - }; - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // Well... here we detect our own htlc_timeout_tx so no tx to be generated - assert_eq!(node_txn.len(), 0); - - // Broadcast legit commitment tx from B on A's chain - let commitment_tx = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - check_spends!(commitment_tx[0], chan_1.3.clone()); - - nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 200); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { .. } } => {}, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 2 (commitment tx, HTLC-Timeout tx), ChannelMonitor : 2 (timeout tx) * 2 block-rescan - assert_eq!(node_txn.len(), 4); - assert_eq!(node_txn[0], node_txn[3]); - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0].clone().input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[1], chan_1.3.clone()); - check_spends!(node_txn[2], node_txn[1].clone()); - assert_eq!(node_txn[1].clone().input[0].witness.last().unwrap().len(), 71); - assert_eq!(node_txn[2].clone().input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - } - - #[test] - fn test_simple_commitment_revoked_fail_backward() { - // Test that in case of a revoked commitment tx, we detect the resolution of output by justice tx - // and fail backward accordingly. - - let nodes = create_network(3); - - // Create some initial channels - create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - let (payment_preimage, _payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000); - // Get the will-be-revoked local txn from nodes[2] - let revoked_local_txn = nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().last_local_commitment_txn.clone(); - // Revoke the old state - claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage); - - route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000); - - let 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 events = nodes[1].node.get_and_clear_pending_msg_events(); - check_added_monitors!(nodes[1], 1); - assert_eq!(events.len(), 2); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { .. } } => {}, - _ => panic!("Unexpected event"), - } - match events[1] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, ref commitment_signed, .. } } => { - assert!(update_add_htlcs.is_empty()); - assert_eq!(update_fail_htlcs.len(), 1); - assert!(update_fulfill_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert_eq!(nodes[0].node.get_our_node_id(), *node_id); - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, false, true); - - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentFailed { .. } => {}, - _ => panic!("Unexpected event"), - } - }, - _ => panic!("Unexpected event"), - } - } - - fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool) { - // Test that if our counterparty broadcasts a revoked commitment transaction we fail all - // pending HTLCs on that channel backwards even if the HTLCs aren't present in our latest - // commitment transaction anymore. - // To do this, we have the peer which will broadcast a revoked commitment transaction send - // a number of update_fail/commitment_signed updates without ever sending the RAA in - // response to our commitment_signed. This is somewhat misbehavior-y, though not - // technically disallowed and we should probably handle it reasonably. - // Note that this is pretty exhaustive as an outbound HTLC which we haven't yet - // failed/fulfilled backwards must be in at least one of the latest two remote commitment - // transactions: - // * Once we move it out of our holding cell/add it, we will immediately include it in a - // commitment_signed (implying it will be in the latest remote commitment transaction). - // * Once they remove it, we will send a (the first) commitment_signed without the HTLC, - // and once they revoke the previous commitment transaction (allowing us to send a new - // commitment_signed) we will be free to fail/fulfill the HTLC backwards. - let mut nodes = create_network(3); - - // Create some initial channels - create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - let (payment_preimage, _payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000); - // Get the will-be-revoked local txn from nodes[2] - let revoked_local_txn = nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().last_local_commitment_txn.clone(); - // Revoke the old state - claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage); - - let (_, first_payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000); - let (_, second_payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000); - let (_, third_payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000); - - assert!(nodes[2].node.fail_htlc_backwards(&first_payment_hash, 0)); - check_added_monitors!(nodes[2], 1); - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fee.is_none()); - nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - let bs_raa = commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false, true, false, true); - // Drop the last RAA from 3 -> 2 - - assert!(nodes[2].node.fail_htlc_backwards(&second_payment_hash, 0)); - check_added_monitors!(nodes[2], 1); - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fee.is_none()); - nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &updates.commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - // Note that nodes[1] is in AwaitingRAA, so won't send a CS - let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id()); - nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa).unwrap(); - check_added_monitors!(nodes[2], 1); - - assert!(nodes[2].node.fail_htlc_backwards(&third_payment_hash, 0)); - check_added_monitors!(nodes[2], 1); - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fee.is_none()); - nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - // At this point first_payment_hash has dropped out of the latest two commitment - // transactions that nodes[1] is tracking... - nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &updates.commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - // Note that nodes[1] is (still) in AwaitingRAA, so won't send a CS - let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id()); - nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa).unwrap(); - check_added_monitors!(nodes[2], 1); - - // Add a fourth HTLC, this one will get sequestered away in nodes[1]'s holding cell waiting - // on nodes[2]'s RAA. - let route = nodes[1].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (_, fourth_payment_hash) = get_payment_preimage_hash!(nodes[0]); - nodes[1].node.send_payment(route, fourth_payment_hash).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); - check_added_monitors!(nodes[1], 0); - - if deliver_bs_raa { - nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_raa).unwrap(); - // One monitor for the new revocation preimage, one as we generate a commitment for - // nodes[0] to fail first_payment_hash backwards. - check_added_monitors!(nodes[1], 2); - } - - let mut failed_htlcs = HashSet::new(); - assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); - - let 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 events = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentFailed { ref payment_hash, .. } => { - assert_eq!(*payment_hash, fourth_payment_hash); - }, - _ => panic!("Unexpected event"), - } - - if !deliver_bs_raa { - // If we delivered the RAA already then we already failed first_payment_hash backwards. - check_added_monitors!(nodes[1], 1); - } - - let events = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), if deliver_bs_raa { 3 } else { 2 }); - match events[if deliver_bs_raa { 2 } else { 0 }] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { .. } } => {}, - _ => panic!("Unexpected event"), - } - if deliver_bs_raa { - match events[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, .. } } => { - assert_eq!(nodes[2].node.get_our_node_id(), *node_id); - assert_eq!(update_add_htlcs.len(), 1); - assert!(update_fulfill_htlcs.is_empty()); - assert!(update_fail_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - }, - _ => panic!("Unexpected event"), - } - } - // Due to the way backwards-failing occurs we do the updates in two steps. - let updates = match events[1] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, ref commitment_signed, .. } } => { - assert!(update_add_htlcs.is_empty()); - assert_eq!(update_fail_htlcs.len(), 1); - assert!(update_fulfill_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert_eq!(nodes[0].node.get_our_node_id(), *node_id); - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[0]).unwrap(); - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), commitment_signed).unwrap(); - check_added_monitors!(nodes[0], 1); - let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - check_added_monitors!(nodes[1], 1); - let bs_second_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - check_added_monitors!(nodes[0], 1); - - if !deliver_bs_raa { - // If we delievered B's RAA we got an unknown preimage error, not something - // that we should update our routing table for. - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - } - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentFailed { ref payment_hash, .. } => { - assert!(failed_htlcs.insert(payment_hash.0)); - }, - _ => panic!("Unexpected event"), - } - - bs_second_update - }, - _ => panic!("Unexpected event"), - }; - - assert!(updates.update_add_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 2); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[1]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false, true); - - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 2); - for event in events { - match event { - MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - } - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 2); - match events[0] { - Event::PaymentFailed { ref payment_hash, .. } => { - assert!(failed_htlcs.insert(payment_hash.0)); - }, - _ => panic!("Unexpected event"), - } - match events[1] { - Event::PaymentFailed { ref payment_hash, .. } => { - assert!(failed_htlcs.insert(payment_hash.0)); - }, - _ => panic!("Unexpected event"), - } - - assert!(failed_htlcs.contains(&first_payment_hash.0)); - assert!(failed_htlcs.contains(&second_payment_hash.0)); - assert!(failed_htlcs.contains(&third_payment_hash.0)); - } - - #[test] - fn test_commitment_revoked_fail_backward_exhaustive() { - do_test_commitment_revoked_fail_backward_exhaustive(false); - do_test_commitment_revoked_fail_backward_exhaustive(true); - } - - #[test] - fn test_htlc_ignore_latest_remote_commitment() { - // Test that HTLC transactions spending the latest remote commitment transaction are simply - // ignored if we cannot claim them. This originally tickled an invalid unwrap(). - let nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - route_payment(&nodes[0], &[&nodes[1]], 10000000); - nodes[0].node.force_close_channel(&nodes[0].node.list_channels()[0].channel_id); - { - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { contents: msgs::UnsignedChannelUpdate { flags, .. }, .. } } => { - assert_eq!(flags & 0b10, 0b10); - }, - _ => panic!("Unexpected event"), - } - } - - let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 2); - - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - nodes[1].chain_monitor.block_connected_checked(&header, 1, &[&node_txn[0], &node_txn[1]], &[1; 2]); - - { - let events = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { contents: msgs::UnsignedChannelUpdate { flags, .. }, .. } } => { - assert_eq!(flags & 0b10, 0b10); - }, - _ => panic!("Unexpected event"), - } - } - - // Duplicate the block_connected call since this may happen due to other listeners - // registering new transactions - nodes[1].chain_monitor.block_connected_checked(&header, 1, &[&node_txn[0], &node_txn[1]], &[1; 2]); - } - - #[test] - fn test_force_close_fail_back() { - // Check which HTLCs are failed-backwards on channel force-closure - let mut nodes = create_network(3); - create_announced_chan_between_nodes(&nodes, 0, 1); - create_announced_chan_between_nodes(&nodes, 1, 2); - - let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, 42).unwrap(); - - let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); - - let mut payment_event = { - nodes[0].node.send_payment(route, our_payment_hash).unwrap(); - check_added_monitors!(nodes[0], 1); - - let mut events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - SendEvent::from_event(events.remove(0)) - }; - - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); - - let events_1 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_1.len(), 1); - match events_1[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - nodes[1].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[1].node.process_pending_htlc_forwards(); - - let mut events_2 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - payment_event = SendEvent::from_event(events_2.remove(0)); - assert_eq!(payment_event.msgs.len(), 1); - - check_added_monitors!(nodes[1], 1); - nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &payment_event.commitment_msg).unwrap(); - check_added_monitors!(nodes[2], 1); - let (_, _) = get_revoke_commit_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - - // nodes[2] now has the latest commitment transaction, but hasn't revoked its previous - // state or updated nodes[1]' state. Now force-close and broadcast that commitment/HTLC - // transaction and ensure nodes[1] doesn't fail-backwards (this was originally a bug!). - - nodes[2].node.force_close_channel(&payment_event.commitment_msg.channel_id); - let events_3 = nodes[2].node.get_and_clear_pending_msg_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { contents: msgs::UnsignedChannelUpdate { flags, .. }, .. } } => { - assert_eq!(flags & 0b10, 0b10); - }, - _ => panic!("Unexpected event"), - } - - let tx = { - let mut node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap(); - // Note that we don't bother broadcasting the HTLC-Success transaction here as we don't - // have a use for it unless nodes[2] learns the preimage somehow, the funds will go - // back to nodes[1] upon timeout otherwise. - assert_eq!(node_txn.len(), 1); - node_txn.remove(0) - }; - - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - nodes[1].chain_monitor.block_connected_checked(&header, 1, &[&tx], &[1]); - - let events_4 = nodes[1].node.get_and_clear_pending_msg_events(); - // Note no UpdateHTLCs event here from nodes[1] to nodes[0]! - assert_eq!(events_4.len(), 1); - match events_4[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { contents: msgs::UnsignedChannelUpdate { flags, .. }, .. } } => { - assert_eq!(flags & 0b10, 0b10); - }, - _ => panic!("Unexpected event"), - } - - // Now check that if we add the preimage to ChannelMonitor it broadcasts our HTLC-Success.. - { - let mut monitors = nodes[2].chan_monitor.simple_monitor.monitors.lock().unwrap(); - monitors.get_mut(&OutPoint::new(Sha256dHash::from(&payment_event.commitment_msg.channel_id[..]), 0)).unwrap() - .provide_payment_preimage(&our_payment_hash, &our_payment_preimage); - } - nodes[2].chain_monitor.block_connected_checked(&header, 1, &[&tx], &[1]); - let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 1); - assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[0].input[0].previous_output.txid, tx.txid()); - assert_eq!(node_txn[0].lock_time, 0); // Must be an HTLC-Success - assert_eq!(node_txn[0].input[0].witness.len(), 5); // Must be an HTLC-Success - - check_spends!(node_txn[0], tx); - } - - #[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 events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { contents: msgs::UnsignedChannelUpdate { flags, .. }, .. } } => { - assert_eq!(flags & 0b10, 0b10); - }, - _ => panic!("Unexpected event"), - } - } - 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); - } - - macro_rules! get_chan_reestablish_msgs { - ($src_node: expr, $dst_node: expr) => { - { - let mut res = Vec::with_capacity(1); - for msg in $src_node.node.get_and_clear_pending_msg_events() { - if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg { - assert_eq!(*node_id, $dst_node.node.get_our_node_id()); - res.push(msg.clone()); - } else { - panic!("Unexpected event") - } - } - res - } - } - } - - macro_rules! handle_chan_reestablish_msgs { - ($src_node: expr, $dst_node: expr) => { - { - let msg_events = $src_node.node.get_and_clear_pending_msg_events(); - let mut idx = 0; - let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) { - idx += 1; - assert_eq!(*node_id, $dst_node.node.get_our_node_id()); - Some(msg.clone()) - } else { - None - }; - - let mut revoke_and_ack = None; - let mut commitment_update = None; - let order = if let Some(ev) = msg_events.get(idx) { - idx += 1; - match ev { - &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => { - assert_eq!(*node_id, $dst_node.node.get_our_node_id()); - revoke_and_ack = Some(msg.clone()); - RAACommitmentOrder::RevokeAndACKFirst - }, - &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => { - assert_eq!(*node_id, $dst_node.node.get_our_node_id()); - commitment_update = Some(updates.clone()); - RAACommitmentOrder::CommitmentFirst - }, - _ => panic!("Unexpected event"), - } - } else { - RAACommitmentOrder::CommitmentFirst - }; - - if let Some(ev) = msg_events.get(idx) { - match ev { - &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => { - assert_eq!(*node_id, $dst_node.node.get_our_node_id()); - assert!(revoke_and_ack.is_none()); - revoke_and_ack = Some(msg.clone()); - }, - &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => { - assert_eq!(*node_id, $dst_node.node.get_our_node_id()); - assert!(commitment_update.is_none()); - commitment_update = Some(updates.clone()); - }, - _ => panic!("Unexpected event"), - } - } - - (funding_locked, revoke_and_ack, commitment_update, order) - } - } - } - - /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas - /// for claims/fails they are separated out. - fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) { - node_a.node.peer_connected(&node_b.node.get_our_node_id()); - let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b); - node_b.node.peer_connected(&node_a.node.get_our_node_id()); - let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a); - - if send_funding_locked.0 { - // If a expects a funding_locked, it better not think it has received a revoke_and_ack - // from b - for reestablish in reestablish_1.iter() { - assert_eq!(reestablish.next_remote_commitment_number, 0); - } - } - if send_funding_locked.1 { - // If b expects a funding_locked, it better not think it has received a revoke_and_ack - // from a - for reestablish in reestablish_2.iter() { - assert_eq!(reestablish.next_remote_commitment_number, 0); - } - } - if send_funding_locked.0 || send_funding_locked.1 { - // If we expect any funding_locked's, both sides better have set - // next_local_commitment_number to 1 - for reestablish in reestablish_1.iter() { - assert_eq!(reestablish.next_local_commitment_number, 1); - } - for reestablish in reestablish_2.iter() { - assert_eq!(reestablish.next_local_commitment_number, 1); - } - } - - let mut resp_1 = Vec::new(); - for msg in reestablish_1 { - node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg).unwrap(); - resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a)); - } - if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 { - check_added_monitors!(node_b, 1); - } else { - check_added_monitors!(node_b, 0); - } - - let mut resp_2 = Vec::new(); - for msg in reestablish_2 { - node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg).unwrap(); - resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b)); - } - if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 { - check_added_monitors!(node_a, 1); - } else { - check_added_monitors!(node_a, 0); - } - - // We dont yet support both needing updates, as that would require a different commitment dance: - assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) || - (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0)); - - for chan_msgs in resp_1.drain(..) { - if send_funding_locked.0 { - node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap()).unwrap(); - let announcement_event = node_a.node.get_and_clear_pending_msg_events(); - if !announcement_event.is_empty() { - assert_eq!(announcement_event.len(), 1); - if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] { - //TODO: Test announcement_sigs re-sending - } else { panic!("Unexpected event!"); } - } - } else { - assert!(chan_msgs.0.is_none()); - } - if pending_raa.0 { - assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst); - node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap()).unwrap(); - assert!(node_a.node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(node_a, 1); - } else { - assert!(chan_msgs.1.is_none()); - } - if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 { - let commitment_update = chan_msgs.2.unwrap(); - if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed - assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize); - } else { - assert!(commitment_update.update_add_htlcs.is_empty()); - } - assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0); - assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0); - assert!(commitment_update.update_fail_malformed_htlcs.is_empty()); - for update_add in commitment_update.update_add_htlcs { - node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add).unwrap(); - } - for update_fulfill in commitment_update.update_fulfill_htlcs { - node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill).unwrap(); - } - for update_fail in commitment_update.update_fail_htlcs { - node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail).unwrap(); - } - - if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed - commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false); - } else { - node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed).unwrap(); - check_added_monitors!(node_a, 1); - let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - assert!(node_b.node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(node_b, 1); - } - } else { - assert!(chan_msgs.2.is_none()); - } - } - - for chan_msgs in resp_2.drain(..) { - if send_funding_locked.1 { - node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap()).unwrap(); - let announcement_event = node_b.node.get_and_clear_pending_msg_events(); - if !announcement_event.is_empty() { - assert_eq!(announcement_event.len(), 1); - if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] { - //TODO: Test announcement_sigs re-sending - } else { panic!("Unexpected event!"); } - } - } else { - assert!(chan_msgs.0.is_none()); - } - if pending_raa.1 { - assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst); - node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap()).unwrap(); - assert!(node_b.node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(node_b, 1); - } else { - assert!(chan_msgs.1.is_none()); - } - if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 { - let commitment_update = chan_msgs.2.unwrap(); - if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed - assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize); - } - assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0); - assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0); - assert!(commitment_update.update_fail_malformed_htlcs.is_empty()); - for update_add in commitment_update.update_add_htlcs { - node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add).unwrap(); - } - for update_fulfill in commitment_update.update_fulfill_htlcs { - node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill).unwrap(); - } - for update_fail in commitment_update.update_fail_htlcs { - node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail).unwrap(); - } - - if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed - commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false); - } else { - node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed).unwrap(); - check_added_monitors!(node_b, 1); - let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - assert!(node_a.node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(node_a, 1); - } - } else { - assert!(chan_msgs.2.is_none()); - } - } - } - - #[test] - fn test_simple_peer_disconnect() { - // Test that we can reconnect when there are no lost messages - let nodes = create_network(3); - create_announced_chan_between_nodes(&nodes, 0, 1); - create_announced_chan_between_nodes(&nodes, 1, 2); - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0; - let payment_hash_2 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1; - fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_hash_2); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_1); - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0; - let payment_preimage_4 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0; - let payment_hash_5 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1; - let payment_hash_6 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1; - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - claim_payment_along_route(&nodes[0], &vec!(&nodes[1], &nodes[2]), true, payment_preimage_3); - fail_payment_along_route(&nodes[0], &[&nodes[1], &nodes[2]], true, payment_hash_5); - - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (1, 0), (1, 0), (false, false)); - { - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 2); - match events[0] { - Event::PaymentSent { payment_preimage } => { - assert_eq!(payment_preimage, payment_preimage_3); - }, - _ => panic!("Unexpected event"), - } - match events[1] { - Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => { - assert_eq!(payment_hash, payment_hash_5); - assert!(rejected_by_dest); - }, - _ => panic!("Unexpected event"), - } - } - - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_4); - fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_hash_6); - } - - fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) { - // Test that we can reconnect when in-flight HTLC updates get dropped - let mut nodes = create_network(2); - if messages_delivered == 0 { - create_chan_between_nodes_with_value_a(&nodes[0], &nodes[1], 100000, 10001); - // nodes[1] doesn't receive the funding_locked message (it'll be re-sent on reconnect) - } else { - create_announced_chan_between_nodes(&nodes, 0, 1); - } - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), Some(&nodes[0].node.list_usable_channels()), &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_1, payment_hash_1) = get_payment_preimage_hash!(nodes[0]); - - let payment_event = { - nodes[0].node.send_payment(route.clone(), payment_hash_1).unwrap(); - check_added_monitors!(nodes[0], 1); - - let mut events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - SendEvent::from_event(events.remove(0)) - }; - assert_eq!(nodes[1].node.get_our_node_id(), payment_event.node_id); - - if messages_delivered < 2 { - // Drop the payment_event messages, and let them get re-generated in reconnect_nodes! - } else { - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - if messages_delivered >= 3 { - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg).unwrap(); - check_added_monitors!(nodes[1], 1); - let (bs_revoke_and_ack, bs_commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - - if messages_delivered >= 4 { - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - if messages_delivered >= 5 { - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_commitment_signed).unwrap(); - let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - if messages_delivered >= 6 { - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - } - } - } - } - } - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - if messages_delivered < 3 { - // Even if the funding_locked messages get exchanged, as long as nothing further was - // received on either side, both sides will need to resend them. - reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 1), (0, 0), (0, 0), (0, 0), (false, false)); - } else if messages_delivered == 3 { - // nodes[0] still wants its RAA + commitment_signed - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (-1, 0), (0, 0), (0, 0), (0, 0), (true, false)); - } else if messages_delivered == 4 { - // nodes[0] still wants its commitment_signed - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (-1, 0), (0, 0), (0, 0), (0, 0), (false, false)); - } else if messages_delivered == 5 { - // nodes[1] still wants its final RAA - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, true)); - } else if messages_delivered == 6 { - // Everything was delivered... - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - } - - let events_1 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_1.len(), 1); - match events_1[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - nodes[1].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[1].node.process_pending_htlc_forwards(); - - let events_2 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_2.len(), 1); - match events_2[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(payment_hash_1, *payment_hash); - assert_eq!(amt, 1000000); - }, - _ => panic!("Unexpected event"), - } - - nodes[1].node.claim_funds(payment_preimage_1); - check_added_monitors!(nodes[1], 1); - - let events_3 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_3.len(), 1); - let (update_fulfill_htlc, commitment_signed) = match events_3[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - (updates.update_fulfill_htlcs[0].clone(), updates.commitment_signed.clone()) - }, - _ => panic!("Unexpected event"), - }; - - if messages_delivered >= 1 { - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlc).unwrap(); - - let events_4 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_4.len(), 1); - match events_4[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(payment_preimage_1, *payment_preimage); - }, - _ => panic!("Unexpected event"), - } - - if messages_delivered >= 2 { - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed).unwrap(); - check_added_monitors!(nodes[0], 1); - let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - - if messages_delivered >= 3 { - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - if messages_delivered >= 4 { - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_signed).unwrap(); - let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - if messages_delivered >= 5 { - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - } - } - } - } - } - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - if messages_delivered < 2 { - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (1, 0), (0, 0), (0, 0), (false, false)); - //TODO: Deduplicate PaymentSent events, then enable this if: - //if messages_delivered < 1 { - let events_4 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_4.len(), 1); - match events_4[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(payment_preimage_1, *payment_preimage); - }, - _ => panic!("Unexpected event"), - } - //} - } else if messages_delivered == 2 { - // nodes[0] still wants its RAA + commitment_signed - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, -1), (0, 0), (0, 0), (0, 0), (false, true)); - } else if messages_delivered == 3 { - // nodes[0] still wants its commitment_signed - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, -1), (0, 0), (0, 0), (0, 0), (false, false)); - } else if messages_delivered == 4 { - // nodes[1] still wants its final RAA - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (true, false)); - } else if messages_delivered == 5 { - // Everything was delivered... - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - } - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - // Channel should still work fine... - let payment_preimage_2 = send_along_route(&nodes[0], route, &[&nodes[1]], 1000000).0; - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); - } - - #[test] - fn test_drop_messages_peer_disconnect_a() { - do_test_drop_messages_peer_disconnect(0); - do_test_drop_messages_peer_disconnect(1); - do_test_drop_messages_peer_disconnect(2); - do_test_drop_messages_peer_disconnect(3); - } - - #[test] - fn test_drop_messages_peer_disconnect_b() { - do_test_drop_messages_peer_disconnect(4); - do_test_drop_messages_peer_disconnect(5); - do_test_drop_messages_peer_disconnect(6); - } - - #[test] - fn test_funding_peer_disconnect() { - // Test that we can lock in our funding tx while disconnected - let nodes = create_network(2); - let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001); - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - confirm_transaction(&nodes[0].chain_monitor, &tx, tx.version); - let events_1 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_1.len(), 1); - match events_1[0] { - MessageSendEvent::SendFundingLocked { ref node_id, msg: _ } => { - assert_eq!(*node_id, nodes[1].node.get_our_node_id()); - }, - _ => panic!("Unexpected event"), - } - - reconnect_nodes(&nodes[0], &nodes[1], (false, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - confirm_transaction(&nodes[1].chain_monitor, &tx, tx.version); - let events_2 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 2); - match events_2[0] { - MessageSendEvent::SendFundingLocked { ref node_id, msg: _ } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - }, - _ => panic!("Unexpected event"), - } - match events_2[1] { - MessageSendEvent::SendAnnouncementSignatures { ref node_id, msg: _ } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - }, - _ => panic!("Unexpected event"), - } - - reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - // TODO: We shouldn't need to manually pass list_usable_chanels here once we support - // rebroadcasting announcement_signatures upon reconnect. - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), Some(&nodes[0].node.list_usable_channels()), &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage, _) = send_along_route(&nodes[0], route, &[&nodes[1]], 1000000); - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage); - } - - #[test] - fn test_drop_messages_peer_disconnect_dual_htlc() { - // Test that we can handle reconnecting when both sides of a channel have pending - // commitment_updates when we disconnect. - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000); - - // Now try to send a second payment which will fail to send - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - - nodes[0].node.send_payment(route.clone(), payment_hash_2).unwrap(); - check_added_monitors!(nodes[0], 1); - - let events_1 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_1.len(), 1); - match events_1[0] { - MessageSendEvent::UpdateHTLCs { .. } => {}, - _ => panic!("Unexpected event"), - } - - assert!(nodes[1].node.claim_funds(payment_preimage_1)); - check_added_monitors!(nodes[1], 1); - - let events_2 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - match events_2[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - assert!(update_add_htlcs.is_empty()); - assert_eq!(update_fulfill_htlcs.len(), 1); - assert!(update_fail_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert!(update_fee.is_none()); - - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlcs[0]).unwrap(); - let events_3 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(*payment_preimage, payment_preimage_1); - }, - _ => panic!("Unexpected event"), - } - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), commitment_signed).unwrap(); - let _ = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - }, - _ => panic!("Unexpected event"), - } - - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); - assert_eq!(reestablish_1.len(), 1); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); - assert_eq!(reestablish_2.len(), 1); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); - let as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]); - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); - let bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]); - - assert!(as_resp.0.is_none()); - assert!(bs_resp.0.is_none()); - - assert!(bs_resp.1.is_none()); - assert!(bs_resp.2.is_none()); - - assert!(as_resp.3 == RAACommitmentOrder::CommitmentFirst); - - assert_eq!(as_resp.2.as_ref().unwrap().update_add_htlcs.len(), 1); - assert!(as_resp.2.as_ref().unwrap().update_fulfill_htlcs.is_empty()); - assert!(as_resp.2.as_ref().unwrap().update_fail_htlcs.is_empty()); - assert!(as_resp.2.as_ref().unwrap().update_fail_malformed_htlcs.is_empty()); - assert!(as_resp.2.as_ref().unwrap().update_fee.is_none()); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &as_resp.2.as_ref().unwrap().update_add_htlcs[0]).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_resp.2.as_ref().unwrap().commitment_signed).unwrap(); - let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), as_resp.1.as_ref().unwrap()).unwrap(); - let bs_second_commitment_signed = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(bs_second_commitment_signed.update_add_htlcs.is_empty()); - assert!(bs_second_commitment_signed.update_fulfill_htlcs.is_empty()); - assert!(bs_second_commitment_signed.update_fail_htlcs.is_empty()); - assert!(bs_second_commitment_signed.update_fail_malformed_htlcs.is_empty()); - assert!(bs_second_commitment_signed.update_fee.is_none()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - let as_commitment_signed = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - assert!(as_commitment_signed.update_add_htlcs.is_empty()); - assert!(as_commitment_signed.update_fulfill_htlcs.is_empty()); - assert!(as_commitment_signed.update_fail_htlcs.is_empty()); - assert!(as_commitment_signed.update_fail_malformed_htlcs.is_empty()); - assert!(as_commitment_signed.update_fee.is_none()); - check_added_monitors!(nodes[0], 1); - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment_signed.commitment_signed).unwrap(); - let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_signed.commitment_signed).unwrap(); - let bs_second_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - let events_4 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_4.len(), 1); - match events_4[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - nodes[1].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[1].node.process_pending_htlc_forwards(); - - let events_5 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_5.len(), 1); - match events_5[0] { - Event::PaymentReceived { ref payment_hash, amt: _ } => { - assert_eq!(payment_hash_2, *payment_hash); - }, - _ => panic!("Unexpected event"), - } - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke_and_ack).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); - } - - #[test] - fn test_simple_monitor_permanent_update_fail() { - // Test that we handle a simple permanent monitor update failure - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (_, payment_hash_1) = get_payment_preimage_hash!(nodes[0]); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::PermanentFailure); - if let Err(APIError::ChannelUnavailable {..}) = nodes[0].node.send_payment(route, payment_hash_1) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - let events_1 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_1.len(), 2); - match events_1[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - }; - match events_1[1] { - MessageSendEvent::HandleError { node_id, .. } => assert_eq!(node_id, nodes[1].node.get_our_node_id()), - _ => panic!("Unexpected event"), - }; - - // TODO: Once we hit the chain with the failure transaction we should check that we get a - // PaymentFailed event - - assert_eq!(nodes[0].node.list_channels().len(), 0); - } - - fn do_test_simple_monitor_temporary_update_fail(disconnect: bool) { - // Test that we can recover from a simple temporary monitor update failure optionally with - // a disconnect in between - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_1, payment_hash_1) = get_payment_preimage_hash!(nodes[0]); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route.clone(), payment_hash_1) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert_eq!(nodes[0].node.list_channels().len(), 1); - - if disconnect { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - } - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - let mut events_2 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - let payment_event = SendEvent::from_event(events_2.pop().unwrap()); - assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); - - expect_pending_htlcs_forwardable!(nodes[1]); - - let events_3 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(payment_hash_1, *payment_hash); - assert_eq!(amt, 1000000); - }, - _ => panic!("Unexpected event"), - } - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1); - - // Now set it to failed again... - let (_, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route, payment_hash_2) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert_eq!(nodes[0].node.list_channels().len(), 1); - - if disconnect { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - } - - // ...and make sure we can force-close a TemporaryFailure channel with a PermanentFailure - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::PermanentFailure); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - let events_5 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_5.len(), 1); - match events_5[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - - // TODO: Once we hit the chain with the failure transaction we should check that we get a - // PaymentFailed event - - assert_eq!(nodes[0].node.list_channels().len(), 0); - } - - #[test] - fn test_simple_monitor_temporary_update_fail() { - do_test_simple_monitor_temporary_update_fail(false); - do_test_simple_monitor_temporary_update_fail(true); - } - - fn do_test_monitor_temporary_update_fail(disconnect_count: usize) { - let disconnect_flags = 8 | 16; - - // Test that we can recover from a temporary monitor update failure with some in-flight - // HTLCs going on at the same time potentially with some disconnection thrown in. - // * First we route a payment, then get a temporary monitor update failure when trying to - // route a second payment. We then claim the first payment. - // * If disconnect_count is set, we will disconnect at this point (which is likely as - // TemporaryFailure likely indicates net disconnect which resulted in failing to update - // the ChannelMonitor on a watchtower). - // * If !(disconnect_count & 16) we deliver a update_fulfill_htlc/CS for the first payment - // immediately, otherwise we wait sconnect and deliver them via the reconnect - // channel_reestablish processing (ie disconnect_count & 16 makes no sense if - // disconnect_count & !disconnect_flags is 0). - // * We then update the channel monitor, reconnecting if disconnect_count is set and walk - // through message sending, potentially disconnect/reconnecting multiple times based on - // disconnect_count, to get the update_fulfill_htlc through. - // * We then walk through more message exchanges to get the original update_add_htlc - // through, swapping message ordering based on disconnect_count & 8 and optionally - // disconnect/reconnecting based on disconnect_count. - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000); - - // Now try to send a second payment which will fail to send - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route.clone(), payment_hash_2) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert_eq!(nodes[0].node.list_channels().len(), 1); - - // Claim the previous payment, which will result in a update_fulfill_htlc/CS from nodes[1] - // but nodes[0] won't respond since it is frozen. - assert!(nodes[1].node.claim_funds(payment_preimage_1)); - check_added_monitors!(nodes[1], 1); - let events_2 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - let (bs_initial_fulfill, bs_initial_commitment_signed) = match events_2[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - assert!(update_add_htlcs.is_empty()); - assert_eq!(update_fulfill_htlcs.len(), 1); - assert!(update_fail_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert!(update_fee.is_none()); - - if (disconnect_count & 16) == 0 { - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlcs[0]).unwrap(); - let events_3 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(*payment_preimage, payment_preimage_1); - }, - _ => panic!("Unexpected event"), - } - - if let Err(msgs::HandleError{err, action: Some(msgs::ErrorAction::IgnoreError) }) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), commitment_signed) { - assert_eq!(err, "Previous monitor update failure prevented generation of RAA"); - } else { panic!(); } - } - - (update_fulfill_htlcs[0].clone(), commitment_signed.clone()) - }, - _ => panic!("Unexpected event"), - }; - - if disconnect_count & !disconnect_flags > 0 { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - } - - // Now fix monitor updating... - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - macro_rules! disconnect_reconnect_peers { () => { { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); - assert_eq!(reestablish_1.len(), 1); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); - assert_eq!(reestablish_2.len(), 1); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); - let as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]); - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); - let bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]); - - assert!(as_resp.0.is_none()); - assert!(bs_resp.0.is_none()); - - (reestablish_1, reestablish_2, as_resp, bs_resp) - } } } - - let (payment_event, initial_revoke_and_ack) = if disconnect_count & !disconnect_flags > 0 { - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); - assert_eq!(reestablish_1.len(), 1); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); - assert_eq!(reestablish_2.len(), 1); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); - check_added_monitors!(nodes[0], 0); - let mut as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]); - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); - check_added_monitors!(nodes[1], 0); - let mut bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]); - - assert!(as_resp.0.is_none()); - assert!(bs_resp.0.is_none()); - - assert!(bs_resp.1.is_none()); - if (disconnect_count & 16) == 0 { - assert!(bs_resp.2.is_none()); - - assert!(as_resp.1.is_some()); - assert!(as_resp.2.is_some()); - assert!(as_resp.3 == RAACommitmentOrder::CommitmentFirst); - } else { - assert!(bs_resp.2.as_ref().unwrap().update_add_htlcs.is_empty()); - assert!(bs_resp.2.as_ref().unwrap().update_fail_htlcs.is_empty()); - assert!(bs_resp.2.as_ref().unwrap().update_fail_malformed_htlcs.is_empty()); - assert!(bs_resp.2.as_ref().unwrap().update_fee.is_none()); - assert!(bs_resp.2.as_ref().unwrap().update_fulfill_htlcs == vec![bs_initial_fulfill]); - assert!(bs_resp.2.as_ref().unwrap().commitment_signed == bs_initial_commitment_signed); - - assert!(as_resp.1.is_none()); - - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().update_fulfill_htlcs[0]).unwrap(); - let events_3 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(*payment_preimage, payment_preimage_1); - }, - _ => panic!("Unexpected event"), - } - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().commitment_signed).unwrap(); - let as_resp_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - as_resp.1 = Some(as_resp_raa); - bs_resp.2 = None; - } - - if disconnect_count & !disconnect_flags > 1 { - let (second_reestablish_1, second_reestablish_2, second_as_resp, second_bs_resp) = disconnect_reconnect_peers!(); - - if (disconnect_count & 16) == 0 { - assert!(reestablish_1 == second_reestablish_1); - assert!(reestablish_2 == second_reestablish_2); - } - assert!(as_resp == second_as_resp); - assert!(bs_resp == second_bs_resp); - } - - (SendEvent::from_commitment_update(nodes[1].node.get_our_node_id(), as_resp.2.unwrap()), as_resp.1.unwrap()) - } else { - let mut events_4 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_4.len(), 2); - (SendEvent::from_event(events_4.remove(0)), match events_4[0] { - MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => { - assert_eq!(*node_id, nodes[1].node.get_our_node_id()); - msg.clone() - }, - _ => panic!("Unexpected event"), - }) - }; - - assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id()); - - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg).unwrap(); - let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // nodes[1] is awaiting an RAA from nodes[0] still so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - if disconnect_count & !disconnect_flags > 2 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.unwrap() == initial_revoke_and_ack); - assert!(bs_resp.1.unwrap() == bs_revoke_and_ack); - - assert!(as_resp.2.is_none()); - assert!(bs_resp.2.is_none()); - } - - let as_commitment_update; - let bs_second_commitment_update; - - macro_rules! handle_bs_raa { () => { - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - as_commitment_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - assert!(as_commitment_update.update_add_htlcs.is_empty()); - assert!(as_commitment_update.update_fulfill_htlcs.is_empty()); - assert!(as_commitment_update.update_fail_htlcs.is_empty()); - assert!(as_commitment_update.update_fail_malformed_htlcs.is_empty()); - assert!(as_commitment_update.update_fee.is_none()); - check_added_monitors!(nodes[0], 1); - } } - - macro_rules! handle_initial_raa { () => { - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &initial_revoke_and_ack).unwrap(); - bs_second_commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(bs_second_commitment_update.update_add_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fulfill_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fail_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fail_malformed_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fee.is_none()); - check_added_monitors!(nodes[1], 1); - } } - - if (disconnect_count & 8) == 0 { - handle_bs_raa!(); - - if disconnect_count & !disconnect_flags > 3 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.unwrap() == initial_revoke_and_ack); - assert!(bs_resp.1.is_none()); - - assert!(as_resp.2.unwrap() == as_commitment_update); - assert!(bs_resp.2.is_none()); - - assert!(as_resp.3 == RAACommitmentOrder::RevokeAndACKFirst); - } - - handle_initial_raa!(); - - if disconnect_count & !disconnect_flags > 4 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.is_none()); - assert!(bs_resp.1.is_none()); - - assert!(as_resp.2.unwrap() == as_commitment_update); - assert!(bs_resp.2.unwrap() == bs_second_commitment_update); - } - } else { - handle_initial_raa!(); - - if disconnect_count & !disconnect_flags > 3 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.is_none()); - assert!(bs_resp.1.unwrap() == bs_revoke_and_ack); - - assert!(as_resp.2.is_none()); - assert!(bs_resp.2.unwrap() == bs_second_commitment_update); - - assert!(bs_resp.3 == RAACommitmentOrder::RevokeAndACKFirst); - } - - handle_bs_raa!(); - - if disconnect_count & !disconnect_flags > 4 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.is_none()); - assert!(bs_resp.1.is_none()); - - assert!(as_resp.2.unwrap() == as_commitment_update); - assert!(bs_resp.2.unwrap() == bs_second_commitment_update); - } - } - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment_update.commitment_signed).unwrap(); - let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_update.commitment_signed).unwrap(); - let bs_second_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke_and_ack).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - expect_pending_htlcs_forwardable!(nodes[1]); - - let events_5 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_5.len(), 1); - match events_5[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(payment_hash_2, *payment_hash); - assert_eq!(amt, 1000000); - }, - _ => panic!("Unexpected event"), - } - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); - } - - #[test] - fn test_monitor_temporary_update_fail_a() { - do_test_monitor_temporary_update_fail(0); - do_test_monitor_temporary_update_fail(1); - do_test_monitor_temporary_update_fail(2); - do_test_monitor_temporary_update_fail(3); - do_test_monitor_temporary_update_fail(4); - do_test_monitor_temporary_update_fail(5); - } - - #[test] - fn test_monitor_temporary_update_fail_b() { - do_test_monitor_temporary_update_fail(2 | 8); - do_test_monitor_temporary_update_fail(3 | 8); - do_test_monitor_temporary_update_fail(4 | 8); - do_test_monitor_temporary_update_fail(5 | 8); - } - - #[test] - fn test_monitor_temporary_update_fail_c() { - do_test_monitor_temporary_update_fail(1 | 16); - do_test_monitor_temporary_update_fail(2 | 16); - do_test_monitor_temporary_update_fail(3 | 16); - do_test_monitor_temporary_update_fail(2 | 8 | 16); - do_test_monitor_temporary_update_fail(3 | 8 | 16); - } - - #[test] - fn test_monitor_update_fail_cs() { - // Tests handling of a monitor update failure when processing an incoming commitment_signed - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); - nodes[0].node.send_payment(route, our_payment_hash).unwrap(); - check_added_monitors!(nodes[0], 1); - - let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event.commitment_msg).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[1].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[1], 1); - let responses = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(responses.len(), 2); - - match responses[0] { - MessageSendEvent::SendRevokeAndACK { ref msg, ref node_id } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &msg).unwrap(); - check_added_monitors!(nodes[0], 1); - }, - _ => panic!("Unexpected event"), - } - match responses[1] { - MessageSendEvent::UpdateHTLCs { ref updates, ref node_id } => { - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &updates.commitment_signed).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - check_added_monitors!(nodes[0], 1); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - }, - _ => panic!("Unexpected event"), - } - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - let final_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &final_raa).unwrap(); - check_added_monitors!(nodes[1], 1); - - let mut events = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - nodes[1].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[1].node.process_pending_htlc_forwards(); - - events = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentReceived { payment_hash, amt } => { - assert_eq!(payment_hash, our_payment_hash); - assert_eq!(amt, 1000000); - }, - _ => panic!("Unexpected event"), - }; - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage); - } - - fn do_test_monitor_update_fail_raa(test_ignore_second_cs: bool) { - // Tests handling of a monitor update failure when processing an incoming RAA - let mut nodes = create_network(3); - create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - // Rebalance a bit so that we can send backwards from 2 to 1. - send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000); - - // Route a first payment that we'll fail backwards - let (_, payment_hash_1) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000); - - // Fail the payment backwards, failing the monitor update on nodes[1]'s receipt of the RAA - assert!(nodes[2].node.fail_htlc_backwards(&payment_hash_1, 0)); - check_added_monitors!(nodes[2], 1); - - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - - let bs_revoke_and_ack = commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false, true, false, true); - check_added_monitors!(nodes[0], 0); - - // While the second channel is AwaitingRAA, forward a second payment to get it into the - // holding cell. - let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - nodes[0].node.send_payment(route, payment_hash_2).unwrap(); - check_added_monitors!(nodes[0], 1); - - let mut send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false); - - let events_1 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_1.len(), 1); - match events_1[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - nodes[1].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[1].node.process_pending_htlc_forwards(); - check_added_monitors!(nodes[1], 0); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - // Now fail monitor updating. - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - // Attempt to forward a third payment but fail due to the second channel being unavailable - // for forwarding. - - let (_, payment_hash_3) = get_payment_preimage_hash!(nodes[0]); - let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - nodes[0].node.send_payment(route, payment_hash_3).unwrap(); - check_added_monitors!(nodes[0], 1); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); // We succeed in updating the monitor for the first channel - send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false, true); - check_added_monitors!(nodes[1], 0); - - let mut events_2 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - match events_2.remove(0) { - MessageSendEvent::UpdateHTLCs { node_id, updates } => { - assert_eq!(node_id, nodes[0].node.get_our_node_id()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false, true); - - let msg_events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(msg_events.len(), 1); - match msg_events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { ref msg }} => { - assert_eq!(msg.contents.short_channel_id, chan_2.0.contents.short_channel_id); - assert_eq!(msg.contents.flags & 2, 2); // temp disabled - }, - _ => panic!("Unexpected event"), - } - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - if let Event::PaymentFailed { payment_hash, rejected_by_dest, .. } = events[0] { - assert_eq!(payment_hash, payment_hash_3); - assert!(!rejected_by_dest); - } else { panic!("Unexpected event!"); } - }, - _ => panic!("Unexpected event type!"), - }; - - let (payment_preimage_4, payment_hash_4) = if test_ignore_second_cs { - // Try to route another payment backwards from 2 to make sure 1 holds off on responding - let (payment_preimage_4, payment_hash_4) = get_payment_preimage_hash!(nodes[0]); - let route = nodes[2].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - nodes[2].node.send_payment(route, payment_hash_4).unwrap(); - check_added_monitors!(nodes[2], 1); - - send_event = SendEvent::from_event(nodes[2].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - if let Err(msgs::HandleError{err, action: Some(msgs::ErrorAction::IgnoreError) }) = nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &send_event.commitment_msg) { - assert_eq!(err, "Previous monitor update failure prevented generation of RAA"); - } else { panic!(); } - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); - (Some(payment_preimage_4), Some(payment_hash_4)) - } else { (None, None) }; - - // Restore monitor updating, ensuring we immediately get a fail-back update and a - // update_add update. - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[1].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[1], 2); - - let mut events_3 = nodes[1].node.get_and_clear_pending_msg_events(); - if test_ignore_second_cs { - assert_eq!(events_3.len(), 3); - } else { - assert_eq!(events_3.len(), 2); - } - - // Note that the ordering of the events for different nodes is non-prescriptive, though the - // ordering of the two events that both go to nodes[2] have to stay in the same order. - let messages_a = match events_3.pop().unwrap() { - MessageSendEvent::UpdateHTLCs { node_id, mut updates } => { - assert_eq!(node_id, nodes[0].node.get_our_node_id()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - (updates.update_fail_htlcs.remove(0), updates.commitment_signed) - }, - _ => panic!("Unexpected event type!"), - }; - let raa = if test_ignore_second_cs { - match events_3.remove(1) { - MessageSendEvent::SendRevokeAndACK { node_id, msg } => { - assert_eq!(node_id, nodes[2].node.get_our_node_id()); - Some(msg.clone()) - }, - _ => panic!("Unexpected event"), - } - } else { None }; - let send_event_b = SendEvent::from_event(events_3.remove(0)); - assert_eq!(send_event_b.node_id, nodes[2].node.get_our_node_id()); - - // Now deliver the new messages... - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &messages_a.0).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], messages_a.1, false); - let events_4 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_4.len(), 1); - if let Event::PaymentFailed { payment_hash, rejected_by_dest, .. } = events_4[0] { - assert_eq!(payment_hash, payment_hash_1); - assert!(rejected_by_dest); - } else { panic!("Unexpected event!"); } - - nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event_b.msgs[0]).unwrap(); - if test_ignore_second_cs { - nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_b.commitment_msg).unwrap(); - check_added_monitors!(nodes[2], 1); - let bs_revoke_and_ack = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &raa.unwrap()).unwrap(); - check_added_monitors!(nodes[2], 1); - let bs_cs = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(bs_cs.update_add_htlcs.is_empty()); - assert!(bs_cs.update_fail_htlcs.is_empty()); - assert!(bs_cs.update_fail_malformed_htlcs.is_empty()); - assert!(bs_cs.update_fulfill_htlcs.is_empty()); - assert!(bs_cs.update_fee.is_none()); - - nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - check_added_monitors!(nodes[1], 1); - let as_cs = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id()); - assert!(as_cs.update_add_htlcs.is_empty()); - assert!(as_cs.update_fail_htlcs.is_empty()); - assert!(as_cs.update_fail_malformed_htlcs.is_empty()); - assert!(as_cs.update_fulfill_htlcs.is_empty()); - assert!(as_cs.update_fee.is_none()); - - nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &bs_cs.commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id()); - - nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &as_cs.commitment_signed).unwrap(); - check_added_monitors!(nodes[2], 1); - let bs_second_raa = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - - nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa).unwrap(); - check_added_monitors!(nodes[2], 1); - assert!(nodes[2].node.get_and_clear_pending_msg_events().is_empty()); - - nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_second_raa).unwrap(); - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - } else { - commitment_signed_dance!(nodes[2], nodes[1], send_event_b.commitment_msg, false); - } - - let events_5 = nodes[2].node.get_and_clear_pending_events(); - assert_eq!(events_5.len(), 1); - match events_5[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - nodes[2].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[2].node.process_pending_htlc_forwards(); - - let events_6 = nodes[2].node.get_and_clear_pending_events(); - assert_eq!(events_6.len(), 1); - match events_6[0] { - Event::PaymentReceived { payment_hash, .. } => { assert_eq!(payment_hash, payment_hash_2); }, - _ => panic!("Unexpected event"), - }; - - if test_ignore_second_cs { - let events_7 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_7.len(), 1); - match events_7[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - nodes[1].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[1].node.process_pending_htlc_forwards(); - check_added_monitors!(nodes[1], 1); - - send_event = SendEvent::from_node(&nodes[1]); - assert_eq!(send_event.node_id, nodes[0].node.get_our_node_id()); - assert_eq!(send_event.msgs.len(), 1); - nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], send_event.commitment_msg, false); - - let events_8 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_8.len(), 1); - match events_8[0] { - Event::PendingHTLCsForwardable { .. } => { }, - _ => panic!("Unexpected event"), - }; - - nodes[0].node.channel_state.lock().unwrap().next_forward = Instant::now(); - nodes[0].node.process_pending_htlc_forwards(); - - let events_9 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_9.len(), 1); - match events_9[0] { - Event::PaymentReceived { payment_hash, .. } => assert_eq!(payment_hash, payment_hash_4.unwrap()), - _ => panic!("Unexpected event"), - }; - claim_payment(&nodes[2], &[&nodes[1], &nodes[0]], payment_preimage_4.unwrap()); - } - - claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage_2); - } - - #[test] - fn test_monitor_update_fail_raa() { - do_test_monitor_update_fail_raa(false); - do_test_monitor_update_fail_raa(true); - } - - #[test] - fn test_monitor_update_fail_reestablish() { - // Simple test for message retransmission after monitor update failure on - // channel_reestablish generating a monitor update (which comes from freeing holding cell - // HTLCs). - let mut nodes = create_network(3); - create_announced_chan_between_nodes(&nodes, 0, 1); - create_announced_chan_between_nodes(&nodes, 1, 2); - - let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000); - - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - - assert!(nodes[2].node.claim_funds(our_payment_preimage)); - check_added_monitors!(nodes[2], 1); - let mut updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - - let as_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id()); - let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish).unwrap(); - - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - check_added_monitors!(nodes[1], 1); - - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - - assert!(as_reestablish == get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id())); - assert!(bs_reestablish == get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id())); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish).unwrap(); - - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish).unwrap(); - check_added_monitors!(nodes[1], 0); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[1].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[1], 1); - - updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentSent { payment_preimage, .. } => assert_eq!(payment_preimage, our_payment_preimage), - _ => panic!("Unexpected event"), - } - } - - #[test] - fn test_invalid_channel_announcement() { - //Test BOLT 7 channel_announcement msg requirement for final node, gather data to build customed channel_announcement msgs - let secp_ctx = Secp256k1::new(); - let nodes = create_network(2); - - let chan_announcement = create_chan_between_nodes(&nodes[0], &nodes[1]); - - let a_channel_lock = nodes[0].node.channel_state.lock().unwrap(); - let b_channel_lock = nodes[1].node.channel_state.lock().unwrap(); - let as_chan = a_channel_lock.by_id.get(&chan_announcement.3).unwrap(); - let bs_chan = b_channel_lock.by_id.get(&chan_announcement.3).unwrap(); - - let _ = nodes[0].router.handle_htlc_fail_channel_update(&msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id : as_chan.get_short_channel_id().unwrap(), is_permanent: false } ); - - let as_bitcoin_key = PublicKey::from_secret_key(&secp_ctx, &as_chan.get_local_keys().funding_key); - let bs_bitcoin_key = PublicKey::from_secret_key(&secp_ctx, &bs_chan.get_local_keys().funding_key); - - let as_network_key = nodes[0].node.get_our_node_id(); - let bs_network_key = nodes[1].node.get_our_node_id(); - - let were_node_one = as_bitcoin_key.serialize()[..] < bs_bitcoin_key.serialize()[..]; - - let mut chan_announcement; - - macro_rules! dummy_unsigned_msg { - () => { - msgs::UnsignedChannelAnnouncement { - features: msgs::GlobalFeatures::new(), - chain_hash: genesis_block(Network::Testnet).header.bitcoin_hash(), - short_channel_id: as_chan.get_short_channel_id().unwrap(), - node_id_1: if were_node_one { as_network_key } else { bs_network_key }, - node_id_2: if were_node_one { bs_network_key } else { as_network_key }, - bitcoin_key_1: if were_node_one { as_bitcoin_key } else { bs_bitcoin_key }, - bitcoin_key_2: if were_node_one { bs_bitcoin_key } else { as_bitcoin_key }, - excess_data: Vec::new(), - }; - } - } - - macro_rules! sign_msg { - ($unsigned_msg: expr) => { - let msghash = Message::from_slice(&Sha256dHash::from_data(&$unsigned_msg.encode()[..])[..]).unwrap(); - let as_bitcoin_sig = secp_ctx.sign(&msghash, &as_chan.get_local_keys().funding_key); - let bs_bitcoin_sig = secp_ctx.sign(&msghash, &bs_chan.get_local_keys().funding_key); - let as_node_sig = secp_ctx.sign(&msghash, &nodes[0].node.our_network_key); - let bs_node_sig = secp_ctx.sign(&msghash, &nodes[1].node.our_network_key); - chan_announcement = msgs::ChannelAnnouncement { - node_signature_1 : if were_node_one { as_node_sig } else { bs_node_sig}, - node_signature_2 : if were_node_one { bs_node_sig } else { as_node_sig}, - bitcoin_signature_1: if were_node_one { as_bitcoin_sig } else { bs_bitcoin_sig }, - bitcoin_signature_2 : if were_node_one { bs_bitcoin_sig } else { as_bitcoin_sig }, - contents: $unsigned_msg - } - } - } - - let unsigned_msg = dummy_unsigned_msg!(); - sign_msg!(unsigned_msg); - assert_eq!(nodes[0].router.handle_channel_announcement(&chan_announcement).unwrap(), true); - let _ = nodes[0].router.handle_htlc_fail_channel_update(&msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id : as_chan.get_short_channel_id().unwrap(), is_permanent: false } ); - - // Configured with Network::Testnet - let mut unsigned_msg = dummy_unsigned_msg!(); - unsigned_msg.chain_hash = genesis_block(Network::Bitcoin).header.bitcoin_hash(); - sign_msg!(unsigned_msg); - assert!(nodes[0].router.handle_channel_announcement(&chan_announcement).is_err()); - - let mut unsigned_msg = dummy_unsigned_msg!(); - unsigned_msg.chain_hash = Sha256dHash::from_data(&[1,2,3,4,5,6,7,8,9]); - sign_msg!(unsigned_msg); - assert!(nodes[0].router.handle_channel_announcement(&chan_announcement).is_err()); - } - - struct VecWriter(Vec); - impl Writer for VecWriter { - fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> { - self.0.extend_from_slice(buf); - Ok(()) - } - fn size_hint(&mut self, size: usize) { - self.0.reserve_exact(size); - } - } - - #[test] - fn test_no_txn_manager_serialize_deserialize() { - let mut nodes = create_network(2); - - let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001); - - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - let nodes_0_serialized = nodes[0].node.encode(); - let mut chan_0_monitor_serialized = VecWriter(Vec::new()); - nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter().next().unwrap().1.write_for_disk(&mut chan_0_monitor_serialized).unwrap(); - - nodes[0].chan_monitor = Arc::new(test_utils::TestChannelMonitor::new(nodes[0].chain_monitor.clone(), nodes[0].tx_broadcaster.clone(), Arc::new(test_utils::TestLogger::new()))); - let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..]; - let (_, chan_0_monitor) = <(Sha256dHash, ChannelMonitor)>::read(&mut chan_0_monitor_read, Arc::new(test_utils::TestLogger::new())).unwrap(); - assert!(chan_0_monitor_read.is_empty()); - - let mut nodes_0_read = &nodes_0_serialized[..]; - let config = UserConfig::new(); - let keys_manager = Arc::new(keysinterface::KeysManager::new(&nodes[0].node_seed, Network::Testnet, Arc::new(test_utils::TestLogger::new()))); - let (_, nodes_0_deserialized) = { - let mut channel_monitors = HashMap::new(); - channel_monitors.insert(chan_0_monitor.get_funding_txo().unwrap(), &chan_0_monitor); - <(Sha256dHash, ChannelManager)>::read(&mut nodes_0_read, ChannelManagerReadArgs { - default_config: config, - keys_manager, - fee_estimator: Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 }), - monitor: nodes[0].chan_monitor.clone(), - chain_monitor: nodes[0].chain_monitor.clone(), - tx_broadcaster: nodes[0].tx_broadcaster.clone(), - logger: Arc::new(test_utils::TestLogger::new()), - channel_monitors: &channel_monitors, - }).unwrap() - }; - assert!(nodes_0_read.is_empty()); - - assert!(nodes[0].chan_monitor.add_update_monitor(chan_0_monitor.get_funding_txo().unwrap(), chan_0_monitor).is_ok()); - nodes[0].node = Arc::new(nodes_0_deserialized); - let nodes_0_as_listener: Arc = nodes[0].node.clone(); - nodes[0].chain_monitor.register_listener(Arc::downgrade(&nodes_0_as_listener)); - assert_eq!(nodes[0].node.list_channels().len(), 1); - check_added_monitors!(nodes[0], 1); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); - - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - - let (funding_locked, _) = create_chan_between_nodes_with_value_confirm(&nodes[0], &nodes[1], &tx); - let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &funding_locked); - for node in nodes.iter() { - assert!(node.router.handle_channel_announcement(&announcement).unwrap()); - node.router.handle_channel_update(&as_update).unwrap(); - node.router.handle_channel_update(&bs_update).unwrap(); - } - - send_payment(&nodes[0], &[&nodes[1]], 1000000); - } - - #[test] - fn test_simple_manager_serialize_deserialize() { - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000); - let (_, our_payment_hash) = route_payment(&nodes[0], &[&nodes[1]], 1000000); - - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - let nodes_0_serialized = nodes[0].node.encode(); - let mut chan_0_monitor_serialized = VecWriter(Vec::new()); - nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter().next().unwrap().1.write_for_disk(&mut chan_0_monitor_serialized).unwrap(); - - nodes[0].chan_monitor = Arc::new(test_utils::TestChannelMonitor::new(nodes[0].chain_monitor.clone(), nodes[0].tx_broadcaster.clone(), Arc::new(test_utils::TestLogger::new()))); - let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..]; - let (_, chan_0_monitor) = <(Sha256dHash, ChannelMonitor)>::read(&mut chan_0_monitor_read, Arc::new(test_utils::TestLogger::new())).unwrap(); - assert!(chan_0_monitor_read.is_empty()); - - let mut nodes_0_read = &nodes_0_serialized[..]; - let keys_manager = Arc::new(keysinterface::KeysManager::new(&nodes[0].node_seed, Network::Testnet, Arc::new(test_utils::TestLogger::new()))); - let (_, nodes_0_deserialized) = { - let mut channel_monitors = HashMap::new(); - channel_monitors.insert(chan_0_monitor.get_funding_txo().unwrap(), &chan_0_monitor); - <(Sha256dHash, ChannelManager)>::read(&mut nodes_0_read, ChannelManagerReadArgs { - default_config: UserConfig::new(), - keys_manager, - fee_estimator: Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 }), - monitor: nodes[0].chan_monitor.clone(), - chain_monitor: nodes[0].chain_monitor.clone(), - tx_broadcaster: nodes[0].tx_broadcaster.clone(), - logger: Arc::new(test_utils::TestLogger::new()), - channel_monitors: &channel_monitors, - }).unwrap() - }; - assert!(nodes_0_read.is_empty()); - - assert!(nodes[0].chan_monitor.add_update_monitor(chan_0_monitor.get_funding_txo().unwrap(), chan_0_monitor).is_ok()); - nodes[0].node = Arc::new(nodes_0_deserialized); - check_added_monitors!(nodes[0], 1); - - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - fail_payment(&nodes[0], &[&nodes[1]], our_payment_hash); - claim_payment(&nodes[0], &[&nodes[1]], our_payment_preimage); - } - - #[test] - fn test_manager_serialize_deserialize_inconsistent_monitor() { - // Test deserializing a ChannelManager with a out-of-date ChannelMonitor - let mut nodes = create_network(4); - create_announced_chan_between_nodes(&nodes, 0, 1); - create_announced_chan_between_nodes(&nodes, 2, 0); - let (_, _, channel_id, funding_tx) = create_announced_chan_between_nodes(&nodes, 0, 3); - - let (our_payment_preimage, _) = route_payment(&nodes[2], &[&nodes[0], &nodes[1]], 1000000); - - // Serialize the ChannelManager here, but the monitor we keep up-to-date - let nodes_0_serialized = nodes[0].node.encode(); - - route_payment(&nodes[0], &[&nodes[3]], 1000000); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - nodes[2].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - nodes[3].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - // Now the ChannelMonitor (which is now out-of-sync with ChannelManager for channel w/ - // nodes[3]) - let mut node_0_monitors_serialized = Vec::new(); - for monitor in nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter() { - let mut writer = VecWriter(Vec::new()); - monitor.1.write_for_disk(&mut writer).unwrap(); - node_0_monitors_serialized.push(writer.0); - } - - nodes[0].chan_monitor = Arc::new(test_utils::TestChannelMonitor::new(nodes[0].chain_monitor.clone(), nodes[0].tx_broadcaster.clone(), Arc::new(test_utils::TestLogger::new()))); - let mut node_0_monitors = Vec::new(); - for serialized in node_0_monitors_serialized.iter() { - let mut read = &serialized[..]; - let (_, monitor) = <(Sha256dHash, ChannelMonitor)>::read(&mut read, Arc::new(test_utils::TestLogger::new())).unwrap(); - assert!(read.is_empty()); - node_0_monitors.push(monitor); - } - - let mut nodes_0_read = &nodes_0_serialized[..]; - let keys_manager = Arc::new(keysinterface::KeysManager::new(&nodes[0].node_seed, Network::Testnet, Arc::new(test_utils::TestLogger::new()))); - let (_, nodes_0_deserialized) = <(Sha256dHash, ChannelManager)>::read(&mut nodes_0_read, ChannelManagerReadArgs { - default_config: UserConfig::new(), - keys_manager, - fee_estimator: Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 }), - monitor: nodes[0].chan_monitor.clone(), - chain_monitor: nodes[0].chain_monitor.clone(), - tx_broadcaster: nodes[0].tx_broadcaster.clone(), - logger: Arc::new(test_utils::TestLogger::new()), - channel_monitors: &node_0_monitors.iter().map(|monitor| { (monitor.get_funding_txo().unwrap(), monitor) }).collect(), - }).unwrap(); - assert!(nodes_0_read.is_empty()); - - { // Channel close should result in a commitment tx and an HTLC tx - let txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(txn.len(), 2); - assert_eq!(txn[0].input[0].previous_output.txid, funding_tx.txid()); - assert_eq!(txn[1].input[0].previous_output.txid, txn[0].txid()); - } - - for monitor in node_0_monitors.drain(..) { - assert!(nodes[0].chan_monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor).is_ok()); - check_added_monitors!(nodes[0], 1); - } - nodes[0].node = Arc::new(nodes_0_deserialized); - - // nodes[1] and nodes[2] have no lost state with nodes[0]... - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - reconnect_nodes(&nodes[0], &nodes[2], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - //... and we can even still claim the payment! - claim_payment(&nodes[2], &[&nodes[0], &nodes[1]], our_payment_preimage); - - nodes[3].node.peer_connected(&nodes[0].node.get_our_node_id()); - let reestablish = get_event_msg!(nodes[3], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()); - nodes[0].node.peer_connected(&nodes[3].node.get_our_node_id()); - if let Err(msgs::HandleError { action: Some(msgs::ErrorAction::SendErrorMessage { msg }), .. }) = nodes[0].node.handle_channel_reestablish(&nodes[3].node.get_our_node_id(), &reestablish) { - assert_eq!(msg.channel_id, channel_id); - } else { panic!("Unexpected result"); } - } - - macro_rules! check_spendable_outputs { - ($node: expr, $der_idx: expr) => { - { - let events = $node.chan_monitor.simple_monitor.get_and_clear_pending_events(); - let mut txn = Vec::new(); - for event in events { - match event { - Event::SpendableOutputs { ref outputs } => { - for outp in outputs { - match *outp { - SpendableOutputDescriptor::DynamicOutputP2WPKH { ref outpoint, ref key, ref output } => { - let input = TxIn { - previous_output: outpoint.clone(), - script_sig: Script::new(), - sequence: 0, - witness: Vec::new(), - }; - let outp = TxOut { - script_pubkey: Builder::new().push_opcode(opcodes::All::OP_RETURN).into_script(), - value: output.value, - }; - let mut spend_tx = Transaction { - version: 2, - lock_time: 0, - input: vec![input], - output: vec![outp], - }; - let secp_ctx = Secp256k1::new(); - let remotepubkey = PublicKey::from_secret_key(&secp_ctx, &key); - let witness_script = Address::p2pkh(&remotepubkey, Network::Testnet).script_pubkey(); - let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap(); - let remotesig = secp_ctx.sign(&sighash, key); - spend_tx.input[0].witness.push(remotesig.serialize_der(&secp_ctx).to_vec()); - spend_tx.input[0].witness[0].push(SigHashType::All as u8); - spend_tx.input[0].witness.push(remotepubkey.serialize().to_vec()); - txn.push(spend_tx); - }, - SpendableOutputDescriptor::DynamicOutputP2WSH { ref outpoint, ref key, ref witness_script, ref to_self_delay, ref output } => { - let input = TxIn { - previous_output: outpoint.clone(), - script_sig: Script::new(), - sequence: *to_self_delay as u32, - witness: Vec::new(), - }; - let outp = TxOut { - script_pubkey: Builder::new().push_opcode(opcodes::All::OP_RETURN).into_script(), - value: output.value, - }; - let mut spend_tx = Transaction { - version: 2, - lock_time: 0, - input: vec![input], - output: vec![outp], - }; - let secp_ctx = Secp256k1::new(); - let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], witness_script, output.value)[..]).unwrap(); - let local_delaysig = secp_ctx.sign(&sighash, key); - spend_tx.input[0].witness.push(local_delaysig.serialize_der(&secp_ctx).to_vec()); - spend_tx.input[0].witness[0].push(SigHashType::All as u8); - spend_tx.input[0].witness.push(vec!(0)); - spend_tx.input[0].witness.push(witness_script.clone().into_bytes()); - txn.push(spend_tx); - }, - SpendableOutputDescriptor::StaticOutput { ref outpoint, ref output } => { - let secp_ctx = Secp256k1::new(); - let input = TxIn { - previous_output: outpoint.clone(), - script_sig: Script::new(), - sequence: 0, - witness: Vec::new(), - }; - let outp = TxOut { - script_pubkey: Builder::new().push_opcode(opcodes::All::OP_RETURN).into_script(), - value: output.value, - }; - let mut spend_tx = Transaction { - version: 2, - lock_time: 0, - input: vec![input], - output: vec![outp.clone()], - }; - let secret = { - match ExtendedPrivKey::new_master(&secp_ctx, Network::Testnet, &$node.node_seed) { - Ok(master_key) => { - match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx($der_idx)) { - Ok(key) => key, - Err(_) => panic!("Your RNG is busted"), - } - } - Err(_) => panic!("Your rng is busted"), - } - }; - let pubkey = ExtendedPubKey::from_private(&secp_ctx, &secret).public_key; - let witness_script = Address::p2pkh(&pubkey, Network::Testnet).script_pubkey(); - let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap(); - let sig = secp_ctx.sign(&sighash, &secret.secret_key); - spend_tx.input[0].witness.push(sig.serialize_der(&secp_ctx).to_vec()); - spend_tx.input[0].witness[0].push(SigHashType::All as u8); - spend_tx.input[0].witness.push(pubkey.serialize().to_vec()); - txn.push(spend_tx); - }, - } - } - }, - _ => panic!("Unexpected event"), - }; - } - txn - } - } - } - - #[test] - fn test_claim_sizeable_push_msat() { - // Incidentally test SpendableOutput event generation due to detection of to_local output on commitment tx - let nodes = create_network(2); - - let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000); - nodes[1].node.force_close_channel(&chan.2); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 1); - check_spends!(node_txn[0], chan.3.clone()); - assert_eq!(node_txn[0].output.len(), 2); // We can't force trimming of to_remote output as channel_reserve_satoshis block us to do so at channel opening - - let 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![node_txn[0].clone()] }, 0); - let spend_txn = check_spendable_outputs!(nodes[1], 1); - assert_eq!(spend_txn.len(), 1); - check_spends!(spend_txn[0], node_txn[0].clone()); - } - - #[test] - fn test_claim_on_remote_sizeable_push_msat() { - // Same test as previous, just test on remote commitment tx, as per_commitment_point registration changes following you're funder/fundee and - // to_remote output is encumbered by a P2WPKH - - let nodes = create_network(2); - - let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000); - nodes[0].node.force_close_channel(&chan.2); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 1); - check_spends!(node_txn[0], chan.3.clone()); - assert_eq!(node_txn[0].output.len(), 2); // We can't force trimming of to_remote output as channel_reserve_satoshis block us to do so at channel opening - - let 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![node_txn[0].clone()] }, 0); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let spend_txn = check_spendable_outputs!(nodes[1], 1); - assert_eq!(spend_txn.len(), 2); - assert_eq!(spend_txn[0], spend_txn[1]); - check_spends!(spend_txn[0], node_txn[0].clone()); - } - - #[test] - fn test_claim_on_remote_revoked_sizeable_push_msat() { - // Same test as previous, just test on remote revoked commitment tx, as per_commitment_point registration changes following you're funder/fundee and - // to_remote output is encumbered by a P2WPKH - - let nodes = create_network(2); - - let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 59000000); - let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(revoked_local_txn[0].input.len(), 1); - assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid()); - - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); - let 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 events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - let spend_txn = check_spendable_outputs!(nodes[1], 1); - assert_eq!(spend_txn.len(), 4); - assert_eq!(spend_txn[0], spend_txn[2]); // to_remote output on revoked remote commitment_tx - check_spends!(spend_txn[0], revoked_local_txn[0].clone()); - assert_eq!(spend_txn[1], spend_txn[3]); // to_local output on local commitment tx - check_spends!(spend_txn[1], node_txn[0].clone()); - } - - #[test] - fn test_static_spendable_outputs_preimage_tx() { - let nodes = create_network(2); - - // Create some initial channels - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - - let commitment_tx = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(commitment_tx[0].input.len(), 1); - assert_eq!(commitment_tx[0].input[0].previous_output.txid, chan_1.3.txid()); - - // Settle A's commitment tx on B's chain - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - assert!(nodes[1].node.claim_funds(payment_preimage)); - check_added_monitors!(nodes[1], 1); - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()] }, 1); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::UpdateHTLCs { .. } => {}, - _ => panic!("Unexpected event"), - } - match events[1] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexepected event"), - } - - // Check B's monitor was able to send back output descriptor event for preimage tx on A's commitment tx - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); // ChannelManager : 1 (local commitment tx), ChannelMonitor: 2 (1 preimage tx) * 2 (block-rescan) - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0], node_txn[2]); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[1], chan_1.3.clone()); - - let spend_txn = check_spendable_outputs!(nodes[1], 1); // , 0, 0, 1, 1); - assert_eq!(spend_txn.len(), 2); - assert_eq!(spend_txn[0], spend_txn[1]); - check_spends!(spend_txn[0], node_txn[0].clone()); - } - - #[test] - fn test_static_spendable_outputs_justice_tx_revoked_commitment_tx() { - let nodes = create_network(2); - - // Create some initial channels - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.iter().next().unwrap().1.last_local_commitment_txn.clone(); - assert_eq!(revoked_local_txn[0].input.len(), 1); - assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid()); - - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); - - let 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 events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 3); - assert_eq!(node_txn.pop().unwrap(), node_txn[0]); - assert_eq!(node_txn[0].input.len(), 2); - check_spends!(node_txn[0], revoked_local_txn[0].clone()); - - let spend_txn = check_spendable_outputs!(nodes[1], 1); - assert_eq!(spend_txn.len(), 2); - assert_eq!(spend_txn[0], spend_txn[1]); - check_spends!(spend_txn[0], node_txn[0].clone()); - } - - #[test] - fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() { - let nodes = create_network(2); - - // Create some initial channels - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(revoked_local_txn[0].input.len(), 1); - assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid()); - - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); - - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - // A will generate HTLC-Timeout from revoked commitment tx - nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let revoked_htlc_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(revoked_htlc_txn.len(), 3); - assert_eq!(revoked_htlc_txn[0], revoked_htlc_txn[2]); - assert_eq!(revoked_htlc_txn[0].input.len(), 1); - assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(revoked_htlc_txn[0], revoked_local_txn[0].clone()); - check_spends!(revoked_htlc_txn[1], chan_1.3.clone()); - - // B will generate justice tx from A's revoked commitment/HTLC tx - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] }, 1); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 4); - assert_eq!(node_txn[3].input.len(), 1); - check_spends!(node_txn[3], revoked_htlc_txn[0].clone()); - - // Check B's ChannelMonitor was able to generate the right spendable output descriptor - let spend_txn = check_spendable_outputs!(nodes[1], 1); - assert_eq!(spend_txn.len(), 3); - assert_eq!(spend_txn[0], spend_txn[1]); - check_spends!(spend_txn[0], node_txn[0].clone()); - check_spends!(spend_txn[2], node_txn[3].clone()); - } - - #[test] - fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() { - let nodes = create_network(2); - - // Create some initial channels - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; - let revoked_local_txn = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(revoked_local_txn[0].input.len(), 1); - assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid()); - - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); - - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - // B will generate HTLC-Success from revoked commitment tx - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let revoked_htlc_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - - assert_eq!(revoked_htlc_txn.len(), 3); - assert_eq!(revoked_htlc_txn[0], revoked_htlc_txn[2]); - assert_eq!(revoked_htlc_txn[0].input.len(), 1); - assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - check_spends!(revoked_htlc_txn[0], revoked_local_txn[0].clone()); - - // A will generate justice tx from B's revoked commitment/HTLC tx - nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] }, 1); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - - let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 4); - assert_eq!(node_txn[3].input.len(), 1); - check_spends!(node_txn[3], revoked_htlc_txn[0].clone()); - - // Check A's ChannelMonitor was able to generate the right spendable output descriptor - let spend_txn = check_spendable_outputs!(nodes[0], 1); - assert_eq!(spend_txn.len(), 5); - assert_eq!(spend_txn[0], spend_txn[2]); - assert_eq!(spend_txn[1], spend_txn[3]); - check_spends!(spend_txn[0], revoked_local_txn[0].clone()); // spending to_remote output from revoked local tx - check_spends!(spend_txn[1], node_txn[2].clone()); // spending justice tx output from revoked local tx htlc received output - check_spends!(spend_txn[4], node_txn[3].clone()); // spending justice tx output on htlc success tx - } - - #[test] - fn test_onchain_to_onchain_claim() { - // Test that in case of channel closure, we detect the state of output thanks to - // ChainWatchInterface and claim HTLC on downstream peer's remote commitment tx. - // First, have C claim an HTLC against its own latest commitment transaction. - // Then, broadcast these to B, which should update the monitor downstream on the A<->B - // channel. - // Finally, check that B will claim the HTLC output if A's latest commitment transaction - // gets broadcast. - - let nodes = create_network(3); - - // 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); - - // Rebalance the network a bit by relaying one payment through all the channels ... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); - - let (payment_preimage, _payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000); - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42}; - let commitment_tx = nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().last_local_commitment_txn.clone(); - check_spends!(commitment_tx[0], chan_2.3.clone()); - nodes[2].node.claim_funds(payment_preimage); - check_added_monitors!(nodes[2], 1); - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - - nodes[2].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1); - let events = nodes[2].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - - let c_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 2 (commitment tx, HTLC-Success tx), ChannelMonitor : 1 (HTLC-Success tx) - assert_eq!(c_txn.len(), 3); - assert_eq!(c_txn[0], c_txn[2]); - assert_eq!(commitment_tx[0], c_txn[1]); - check_spends!(c_txn[1], chan_2.3.clone()); - check_spends!(c_txn[2], c_txn[1].clone()); - assert_eq!(c_txn[1].input[0].witness.clone().last().unwrap().len(), 71); - assert_eq!(c_txn[2].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert!(c_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert_eq!(c_txn[0].lock_time, 0); // Success tx - - // So we broadcast C's commitment tx and HTLC-Success on B's chain, we should successfully be able to extract preimage and update downstream monitor - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![c_txn[1].clone(), c_txn[2].clone()]}, 1); - { - let mut b_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(b_txn.len(), 4); - assert_eq!(b_txn[0], b_txn[3]); - check_spends!(b_txn[1], chan_2.3); // B local commitment tx, issued by ChannelManager - check_spends!(b_txn[2], b_txn[1].clone()); // HTLC-Timeout on B local commitment tx, issued by ChannelManager - assert_eq!(b_txn[2].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(b_txn[2].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert_ne!(b_txn[2].lock_time, 0); // Timeout tx - check_spends!(b_txn[0], c_txn[1].clone()); // timeout tx on C remote commitment tx, issued by ChannelMonitor, * 2 due to block rescan - assert_eq!(b_txn[0].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert!(b_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment - assert_ne!(b_txn[2].lock_time, 0); // Timeout tx - b_txn.clear(); - } - let msg_events = nodes[1].node.get_and_clear_pending_msg_events(); - check_added_monitors!(nodes[1], 1); - match msg_events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - match msg_events[1] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, .. } } => { - assert!(update_add_htlcs.is_empty()); - assert!(update_fail_htlcs.is_empty()); - assert_eq!(update_fulfill_htlcs.len(), 1); - assert!(update_fail_malformed_htlcs.is_empty()); - assert_eq!(nodes[0].node.get_our_node_id(), *node_id); - }, - _ => panic!("Unexpected event"), - }; - // Broadcast A's commitment tx on B's chain to see if we are able to claim inbound HTLC with our HTLC-Success tx - let commitment_tx = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1); - let b_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(b_txn.len(), 3); - check_spends!(b_txn[1], chan_1.3); // Local commitment tx, issued by ChannelManager - assert_eq!(b_txn[0], b_txn[2]); // HTLC-Success tx, issued by ChannelMonitor, * 2 due to block rescan - check_spends!(b_txn[0], commitment_tx[0].clone()); - assert_eq!(b_txn[0].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(b_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment - assert_eq!(b_txn[2].lock_time, 0); // Success tx - let msg_events = nodes[1].node.get_and_clear_pending_msg_events(); - match msg_events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - } - - #[test] - fn test_duplicate_payment_hash_one_failure_one_success() { - // Topology : A --> B --> C - // We route 2 payments with same hash between B and C, one will be timeout, the other successfully claim - let mut nodes = create_network(3); - - create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - let (our_payment_preimage, duplicate_payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 900000); - *nodes[0].network_payment_count.borrow_mut() -= 1; - assert_eq!(route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 900000).1, duplicate_payment_hash); - - let commitment_txn = nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(commitment_txn[0].input.len(), 1); - check_spends!(commitment_txn[0], chan_2.3.clone()); - - let 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![commitment_txn[0].clone()] }, 1); - let htlc_timeout_tx; - { // Extract one of the two HTLC-Timeout transaction - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 7); - assert_eq!(node_txn[0], node_txn[5]); - assert_eq!(node_txn[1], node_txn[6]); - check_spends!(node_txn[0], commitment_txn[0].clone()); - assert_eq!(node_txn[0].input.len(), 1); - check_spends!(node_txn[1], commitment_txn[0].clone()); - assert_eq!(node_txn[1].input.len(), 1); - assert_ne!(node_txn[0].input[0], node_txn[1].input[0]); - check_spends!(node_txn[2], chan_2.3.clone()); - check_spends!(node_txn[3], node_txn[2].clone()); - check_spends!(node_txn[4], node_txn[2].clone()); - htlc_timeout_tx = node_txn[1].clone(); - } - - let events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexepected event"), - } - - nodes[2].node.claim_funds(our_payment_preimage); - nodes[2].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_txn[0].clone()] }, 1); - check_added_monitors!(nodes[2], 2); - let events = nodes[2].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::UpdateHTLCs { .. } => {}, - _ => panic!("Unexpected event"), - } - match events[1] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexepected event"), - } - let htlc_success_txn: Vec<_> = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); - assert_eq!(htlc_success_txn.len(), 5); - check_spends!(htlc_success_txn[2], chan_2.3.clone()); - assert_eq!(htlc_success_txn[0], htlc_success_txn[3]); - assert_eq!(htlc_success_txn[0].input.len(), 1); - assert_eq!(htlc_success_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert_eq!(htlc_success_txn[1], htlc_success_txn[4]); - assert_eq!(htlc_success_txn[1].input.len(), 1); - assert_eq!(htlc_success_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert_ne!(htlc_success_txn[0].input[0], htlc_success_txn[1].input[0]); - check_spends!(htlc_success_txn[0], commitment_txn[0].clone()); - check_spends!(htlc_success_txn[1], commitment_txn[0].clone()); - - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![htlc_timeout_tx] }, 200); - let htlc_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(htlc_updates.update_add_htlcs.is_empty()); - assert_eq!(htlc_updates.update_fail_htlcs.len(), 1); - assert_eq!(htlc_updates.update_fail_htlcs[0].htlc_id, 1); - assert!(htlc_updates.update_fulfill_htlcs.is_empty()); - assert!(htlc_updates.update_fail_malformed_htlcs.is_empty()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &htlc_updates.update_fail_htlcs[0]).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - { - commitment_signed_dance!(nodes[0], nodes[1], &htlc_updates.commitment_signed, false, true); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelClosed { .. } } => { - }, - _ => { panic!("Unexpected event"); } - } - } - let events = nodes[0].node.get_and_clear_pending_events(); - match events[0] { - Event::PaymentFailed { ref payment_hash, .. } => { - assert_eq!(*payment_hash, duplicate_payment_hash); - } - _ => panic!("Unexpected event"), - } - - // Solve 2nd HTLC by broadcasting on B's chain HTLC-Success Tx from C - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![htlc_success_txn[0].clone()] }, 200); - let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - assert_eq!(updates.update_fulfill_htlcs[0].htlc_id, 0); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], &updates.commitment_signed, false); - - let events = nodes[0].node.get_and_clear_pending_events(); - match events[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(*payment_preimage, our_payment_preimage); - } - _ => panic!("Unexpected event"), - } - } - - #[test] - fn test_dynamic_spendable_outputs_local_htlc_success_tx() { - let nodes = create_network(2); - - // Create some initial channels - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000).0; - let local_txn = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(local_txn[0].input.len(), 1); - check_spends!(local_txn[0], chan_1.3.clone()); - - // Give B knowledge of preimage to be able to generate a local HTLC-Success Tx - nodes[1].node.claim_funds(payment_preimage); - check_added_monitors!(nodes[1], 1); - let 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![local_txn[0].clone()] }, 1); - let events = nodes[1].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::UpdateHTLCs { .. } => {}, - _ => panic!("Unexpected event"), - } - match events[1] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexepected event"), - } - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[0], local_txn[0].clone()); - - // Verify that B is able to spend its own HTLC-Success tx thanks to spendable output event given back by its ChannelMonitor - let spend_txn = check_spendable_outputs!(nodes[1], 1); - assert_eq!(spend_txn.len(), 2); - check_spends!(spend_txn[0], node_txn[0].clone()); - check_spends!(spend_txn[1], node_txn[2].clone()); - } - - #[test] - fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() { - let nodes = create_network(2); - - // Create some initial channels - let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1); - - route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000).0; - let local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone(); - assert_eq!(local_txn[0].input.len(), 1); - check_spends!(local_txn[0], chan_1.3.clone()); - - // Timeout HTLC on A's chain and so it can generate a HTLC-Timeout tx - 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![local_txn[0].clone()] }, 200); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - match events[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexepected event"), - } - let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[0], local_txn[0].clone()); - - // Verify that A is able to spend its own HTLC-Timeout tx thanks to spendable output event given back by its ChannelMonitor - let spend_txn = check_spendable_outputs!(nodes[0], 1); - assert_eq!(spend_txn.len(), 8); - assert_eq!(spend_txn[0], spend_txn[2]); - assert_eq!(spend_txn[0], spend_txn[4]); - assert_eq!(spend_txn[0], spend_txn[6]); - assert_eq!(spend_txn[1], spend_txn[3]); - assert_eq!(spend_txn[1], spend_txn[5]); - assert_eq!(spend_txn[1], spend_txn[7]); - check_spends!(spend_txn[0], local_txn[0].clone()); - check_spends!(spend_txn[1], node_txn[0].clone()); - } - - #[test] - fn test_static_output_closing_tx() { - let nodes = create_network(2); - - let chan = create_announced_chan_between_nodes(&nodes, 0, 1); - - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); - let closing_tx = close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true).2; - - 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![closing_tx.clone()] }, 1); - let spend_txn = check_spendable_outputs!(nodes[0], 2); - assert_eq!(spend_txn.len(), 1); - check_spends!(spend_txn[0], closing_tx.clone()); - - nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![closing_tx.clone()] }, 1); - let spend_txn = check_spendable_outputs!(nodes[1], 2); - assert_eq!(spend_txn.len(), 1); - check_spends!(spend_txn[0], closing_tx); - } - - fn run_onion_failure_test(_name: &str, test_case: u8, nodes: &Vec, route: &Route, payment_hash: &PaymentHash, callback_msg: F1, callback_node: F2, expected_retryable: bool, expected_error_code: Option, expected_channel_update: Option) - where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC), - F2: FnMut(), - { - run_onion_failure_test_with_fail_intercept(_name, test_case, nodes, route, payment_hash, callback_msg, |_|{}, callback_node, expected_retryable, expected_error_code, expected_channel_update); - } - - // test_case - // 0: node1 fail backward - // 1: final node fail backward - // 2: payment completed but the user reject the payment - // 3: final node fail backward (but tamper onion payloads from node0) - // 100: trigger error in the intermediate node and tamper returnning fail_htlc - // 200: trigger error in the final node and tamper returnning fail_htlc - fn run_onion_failure_test_with_fail_intercept(_name: &str, test_case: u8, nodes: &Vec, route: &Route, payment_hash: &PaymentHash, mut callback_msg: F1, mut callback_fail: F2, mut callback_node: F3, expected_retryable: bool, expected_error_code: Option, expected_channel_update: Option) - where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC), - F2: for <'a> FnMut(&'a mut msgs::UpdateFailHTLC), - F3: FnMut(), - { - use ln::msgs::HTLCFailChannelUpdate; - - // reset block height - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - for ix in 0..nodes.len() { - nodes[ix].chain_monitor.block_connected_checked(&header, 1, &Vec::new()[..], &[0; 0]); - } - - macro_rules! expect_event { - ($node: expr, $event_type: path) => {{ - let events = $node.node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - $event_type { .. } => {}, - _ => panic!("Unexpected event"), - } - }} - } - - macro_rules! expect_htlc_forward { - ($node: expr) => {{ - expect_event!($node, Event::PendingHTLCsForwardable); - $node.node.channel_state.lock().unwrap().next_forward = Instant::now(); - $node.node.process_pending_htlc_forwards(); - }} - } - - // 0 ~~> 2 send payment - nodes[0].node.send_payment(route.clone(), payment_hash.clone()).unwrap(); - check_added_monitors!(nodes[0], 1); - let update_0 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - // temper update_add (0 => 1) - let mut update_add_0 = update_0.update_add_htlcs[0].clone(); - if test_case == 0 || test_case == 3 || test_case == 100 { - callback_msg(&mut update_add_0); - callback_node(); - } - // 0 => 1 update_add & CS - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add_0).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], &update_0.commitment_signed, false, true); - - let update_1_0 = match test_case { - 0|100 => { // intermediate node failure; fail backward to 0 - let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(update_1_0.update_fail_htlcs.len()+update_1_0.update_fail_malformed_htlcs.len()==1 && (update_1_0.update_fail_htlcs.len()==1 || update_1_0.update_fail_malformed_htlcs.len()==1)); - update_1_0 - }, - 1|2|3|200 => { // final node failure; forwarding to 2 - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - // forwarding on 1 - if test_case != 200 { - callback_node(); - } - expect_htlc_forward!(&nodes[1]); - - let update_1 = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id()); - check_added_monitors!(&nodes[1], 1); - assert_eq!(update_1.update_add_htlcs.len(), 1); - // tamper update_add (1 => 2) - let mut update_add_1 = update_1.update_add_htlcs[0].clone(); - if test_case != 3 && test_case != 200 { - callback_msg(&mut update_add_1); - } - - // 1 => 2 - nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add_1).unwrap(); - commitment_signed_dance!(nodes[2], nodes[1], update_1.commitment_signed, false, true); - - if test_case == 2 || test_case == 200 { - expect_htlc_forward!(&nodes[2]); - expect_event!(&nodes[2], Event::PaymentReceived); - callback_node(); - } - - let update_2_1 = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - if test_case == 2 || test_case == 200 { - check_added_monitors!(&nodes[2], 1); - } - assert!(update_2_1.update_fail_htlcs.len() == 1); - - let mut fail_msg = update_2_1.update_fail_htlcs[0].clone(); - if test_case == 200 { - callback_fail(&mut fail_msg); - } - - // 2 => 1 - nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &fail_msg).unwrap(); - commitment_signed_dance!(nodes[1], nodes[2], update_2_1.commitment_signed, true, true); - - // backward fail on 1 - let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(update_1_0.update_fail_htlcs.len() == 1); - update_1_0 - }, - _ => unreachable!(), - }; - - // 1 => 0 commitment_signed_dance - if update_1_0.update_fail_htlcs.len() > 0 { - let mut fail_msg = update_1_0.update_fail_htlcs[0].clone(); - if test_case == 100 { - callback_fail(&mut fail_msg); - } - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &fail_msg).unwrap(); - } else { - nodes[0].node.handle_update_fail_malformed_htlc(&nodes[1].node.get_our_node_id(), &update_1_0.update_fail_malformed_htlcs[0]).unwrap(); - }; - - commitment_signed_dance!(nodes[0], nodes[1], update_1_0.commitment_signed, false, true); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - if let &Event::PaymentFailed { payment_hash:_, ref rejected_by_dest, ref error_code } = &events[0] { - assert_eq!(*rejected_by_dest, !expected_retryable); - assert_eq!(*error_code, expected_error_code); - } else { - panic!("Uexpected event"); - } - - let events = nodes[0].node.get_and_clear_pending_msg_events(); - if expected_channel_update.is_some() { - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { ref update } => { - match update { - &HTLCFailChannelUpdate::ChannelUpdateMessage { .. } => { - if let HTLCFailChannelUpdate::ChannelUpdateMessage { .. } = expected_channel_update.unwrap() {} else { - panic!("channel_update not found!"); - } - }, - &HTLCFailChannelUpdate::ChannelClosed { ref short_channel_id, ref is_permanent } => { - if let HTLCFailChannelUpdate::ChannelClosed { short_channel_id: ref expected_short_channel_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() { - assert!(*short_channel_id == *expected_short_channel_id); - assert!(*is_permanent == *expected_is_permanent); - } else { - panic!("Unexpected message event"); - } - }, - &HTLCFailChannelUpdate::NodeFailure { ref node_id, ref is_permanent } => { - if let HTLCFailChannelUpdate::NodeFailure { node_id: ref expected_node_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() { - assert!(*node_id == *expected_node_id); - assert!(*is_permanent == *expected_is_permanent); - } else { - panic!("Unexpected message event"); - } - }, - } - }, - _ => panic!("Unexpected message event"), - } - } else { - assert_eq!(events.len(), 0); - } - } - - impl msgs::ChannelUpdate { - fn dummy() -> msgs::ChannelUpdate { - use secp256k1::ffi::Signature as FFISignature; - use secp256k1::Signature; - msgs::ChannelUpdate { - signature: Signature::from(FFISignature::new()), - contents: msgs::UnsignedChannelUpdate { - chain_hash: Sha256dHash::from_data(&vec![0u8][..]), - short_channel_id: 0, - timestamp: 0, - flags: 0, - cltv_expiry_delta: 0, - htlc_minimum_msat: 0, - fee_base_msat: 0, - fee_proportional_millionths: 0, - excess_data: vec![], - } - } - } - } - - #[test] - fn test_onion_failure() { - use ln::msgs::ChannelUpdate; - use ln::channelmanager::CLTV_FAR_FAR_AWAY; - use secp256k1; - - const BADONION: u16 = 0x8000; - const PERM: u16 = 0x4000; - const NODE: u16 = 0x2000; - const UPDATE: u16 = 0x1000; - - let mut nodes = create_network(3); - for node in nodes.iter() { - *node.keys_manager.override_session_priv.lock().unwrap() = Some(SecretKey::from_slice(&Secp256k1::without_caps(), &[3; 32]).unwrap()); - } - let channels = [create_announced_chan_between_nodes(&nodes, 0, 1), create_announced_chan_between_nodes(&nodes, 1, 2)]; - let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]); - let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV).unwrap(); - // positve case - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 40000); - - // intermediate node failure - run_onion_failure_test("invalid_realm", 0, &nodes, &route, &payment_hash, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1; - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - let (mut onion_payloads, _htlc_msat, _htlc_cltv) = ChannelManager::build_onion_payloads(&route, cur_height).unwrap(); - onion_payloads[0].realm = 3; - msg.onion_routing_packet = ChannelManager::construct_onion_packet(onion_payloads, onion_keys, &payment_hash); - }, ||{}, true, Some(PERM|1), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));//XXX incremented channels idx here - - // final node failure - run_onion_failure_test("invalid_realm", 3, &nodes, &route, &payment_hash, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1; - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - let (mut onion_payloads, _htlc_msat, _htlc_cltv) = ChannelManager::build_onion_payloads(&route, cur_height).unwrap(); - onion_payloads[1].realm = 3; - msg.onion_routing_packet = ChannelManager::construct_onion_packet(onion_payloads, onion_keys, &payment_hash); - }, ||{}, false, Some(PERM|1), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true})); - - // the following three with run_onion_failure_test_with_fail_intercept() test only the origin node - // receiving simulated fail messages - // intermediate node failure - run_onion_failure_test_with_fail_intercept("temporary_node_failure", 100, &nodes, &route, &payment_hash, |msg| { - // trigger error - msg.amount_msat -= 1; - }, |msg| { - // and tamper returing error message - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], NODE|2, &[0;0]); - }, ||{}, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.hops[0].pubkey, is_permanent: false})); - - // final node failure - run_onion_failure_test_with_fail_intercept("temporary_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| { - // and tamper returing error message - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], NODE|2, &[0;0]); - }, ||{ - nodes[2].node.fail_htlc_backwards(&payment_hash, 0); - }, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.hops[1].pubkey, is_permanent: false})); - - // intermediate node failure - run_onion_failure_test_with_fail_intercept("permanent_node_failure", 100, &nodes, &route, &payment_hash, |msg| { - msg.amount_msat -= 1; - }, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|2, &[0;0]); - }, ||{}, true, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.hops[0].pubkey, is_permanent: true})); - - // final node failure - run_onion_failure_test_with_fail_intercept("permanent_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|2, &[0;0]); - }, ||{ - nodes[2].node.fail_htlc_backwards(&payment_hash, 0); - }, false, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.hops[1].pubkey, is_permanent: true})); - - // intermediate node failure - run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 100, &nodes, &route, &payment_hash, |msg| { - msg.amount_msat -= 1; - }, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|3, &[0;0]); - }, ||{ - nodes[2].node.fail_htlc_backwards(&payment_hash, 0); - }, true, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.hops[0].pubkey, is_permanent: true})); - - // final node failure - run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|3, &[0;0]); - }, ||{ - nodes[2].node.fail_htlc_backwards(&payment_hash, 0); - }, false, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.hops[1].pubkey, is_permanent: true})); - - run_onion_failure_test("invalid_onion_version", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.version = 1; }, ||{}, true, - Some(BADONION|PERM|4), None); - - run_onion_failure_test("invalid_onion_hmac", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.hmac = [3; 32]; }, ||{}, true, - Some(BADONION|PERM|5), None); - - run_onion_failure_test("invalid_onion_key", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.public_key = Err(secp256k1::Error::InvalidPublicKey);}, ||{}, true, - Some(BADONION|PERM|6), None); - - run_onion_failure_test_with_fail_intercept("temporary_channel_failure", 100, &nodes, &route, &payment_hash, |msg| { - msg.amount_msat -= 1; - }, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], UPDATE|7, &ChannelUpdate::dummy().encode_with_len()[..]); - }, ||{}, true, Some(UPDATE|7), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()})); - - run_onion_failure_test_with_fail_intercept("permanent_channel_failure", 100, &nodes, &route, &payment_hash, |msg| { - msg.amount_msat -= 1; - }, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|8, &[0;0]); - // short_channel_id from the processing node - }, ||{}, true, Some(PERM|8), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true})); - - run_onion_failure_test_with_fail_intercept("required_channel_feature_missing", 100, &nodes, &route, &payment_hash, |msg| { - msg.amount_msat -= 1; - }, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - msg.reason = ChannelManager::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|9, &[0;0]); - // short_channel_id from the processing node - }, ||{}, true, Some(PERM|9), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true})); - - let mut bogus_route = route.clone(); - bogus_route.hops[1].short_channel_id -= 1; - run_onion_failure_test("unknown_next_peer", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(PERM|10), - Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: bogus_route.hops[1].short_channel_id, is_permanent:true})); - - let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_their_htlc_minimum_msat() - 1; - let mut bogus_route = route.clone(); - let route_len = bogus_route.hops.len(); - bogus_route.hops[route_len-1].fee_msat = amt_to_forward; - run_onion_failure_test("amount_below_minimum", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(UPDATE|11), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()})); - - //TODO: with new config API, we will be able to generate both valid and - //invalid channel_update cases. - run_onion_failure_test("fee_insufficient", 0, &nodes, &route, &payment_hash, |msg| { - msg.amount_msat -= 1; - }, || {}, true, Some(UPDATE|12), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true})); - - run_onion_failure_test("incorrect_cltv_expiry", 0, &nodes, &route, &payment_hash, |msg| { - // need to violate: cltv_expiry - cltv_expiry_delta >= outgoing_cltv_value - msg.cltv_expiry -= 1; - }, || {}, true, Some(UPDATE|13), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true})); - - run_onion_failure_test("expiry_too_soon", 0, &nodes, &route, &payment_hash, |msg| { - let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - HTLC_FAIL_TIMEOUT_BLOCKS + 1; - let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - nodes[1].chain_monitor.block_connected_checked(&header, height, &Vec::new()[..], &[0; 0]); - }, ||{}, true, Some(UPDATE|14), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()})); - - run_onion_failure_test("unknown_payment_hash", 2, &nodes, &route, &payment_hash, |_| {}, || { - nodes[2].node.fail_htlc_backwards(&payment_hash, 0); - }, false, Some(PERM|15), None); - - run_onion_failure_test("final_expiry_too_soon", 1, &nodes, &route, &payment_hash, |msg| { - let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - HTLC_FAIL_TIMEOUT_BLOCKS + 1; - 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_checked(&header, height, &Vec::new()[..], &[0; 0]); - }, || {}, true, Some(17), None); - - run_onion_failure_test("final_incorrect_cltv_expiry", 1, &nodes, &route, &payment_hash, |_| {}, || { - for (_, mut pending_forwards) in nodes[1].node.channel_state.lock().unwrap().borrow_parts().forward_htlcs.iter_mut() { - for f in pending_forwards.iter_mut() { - f.forward_info.outgoing_cltv_value += 1; - } - } - }, true, Some(18), None); - - run_onion_failure_test("final_incorrect_htlc_amount", 1, &nodes, &route, &payment_hash, |_| {}, || { - // violate amt_to_forward > msg.amount_msat - for (_, mut pending_forwards) in nodes[1].node.channel_state.lock().unwrap().borrow_parts().forward_htlcs.iter_mut() { - for f in pending_forwards.iter_mut() { - f.forward_info.amt_to_forward -= 1; - } - } - }, true, Some(19), None); - - run_onion_failure_test("channel_disabled", 0, &nodes, &route, &payment_hash, |_| {}, || { - // disconnect event to the channel between nodes[1] ~ nodes[2] - nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), false); - nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - }, true, Some(UPDATE|20), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()})); - reconnect_nodes(&nodes[1], &nodes[2], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - - run_onion_failure_test("expiry_too_far", 0, &nodes, &route, &payment_hash, |msg| { - let session_priv = SecretKey::from_slice(&::secp256k1::Secp256k1::without_caps(), &[3; 32]).unwrap(); - let mut route = route.clone(); - let height = 1; - route.hops[1].cltv_expiry_delta += CLTV_FAR_FAR_AWAY + route.hops[0].cltv_expiry_delta + 1; - let onion_keys = ChannelManager::construct_onion_keys(&Secp256k1::new(), &route, &session_priv).unwrap(); - let (onion_payloads, _, htlc_cltv) = ChannelManager::build_onion_payloads(&route, height).unwrap(); - let onion_packet = ChannelManager::construct_onion_packet(onion_payloads, onion_keys, &payment_hash); - msg.cltv_expiry = htlc_cltv; - msg.onion_routing_packet = onion_packet; - }, ||{}, true, Some(21), None); - } -}