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18 months agoNever block a thread on the `PeerManager` event handling lock 2023-05-event-deadlock
Matt Corallo [Tue, 9 May 2023 00:30:33 +0000 (00:30 +0000)]
Never block a thread on the `PeerManager` event handling lock

If thre's a thread currently handling `PeerManager` events, the
next thread which attempts to handle events will block on the first
and then handle events after the first completes. (later threads
will return immediately to avoid blocking more than one thread).

This works fine as long as the user has a spare thread to leave
blocked, but if they don't (e.g. are running with a single-threaded
tokio runtime) this can lead to a full deadlock.

Instead, here, we never block waiting on another event processing
thread, returning immediately after signaling that the first thread
should start over once its complete to ensure all events are
handled.

While this could lead to starvation as we cause one thread to go
around and around and around again, the risk of that should be
relatively low as event handling should be pretty quick, and it's
certainly better than deadlocking.

Fixes https://github.com/lightningdevkit/rapid-gossip-sync-server/issues/32

Atomic lock simplification suggestion from @andrei-21

18 months agoMerge pull request #2258 from valentinewallace/2023-04-blinded-pathfinding-groundwork-2
Matt Corallo [Mon, 8 May 2023 23:17:42 +0000 (23:17 +0000)]
Merge pull request #2258 from valentinewallace/2023-04-blinded-pathfinding-groundwork-2

Prefactor `PaymentParameters` for blinded recipients

18 months agoMove final_cltv_expiry_delta from PaymentParams to Payee::Clear
Valentine Wallace [Thu, 27 Apr 2023 21:37:38 +0000 (17:37 -0400)]
Move final_cltv_expiry_delta from PaymentParams to Payee::Clear

Since blinded pay params won't have this value.

18 months agoAdd BOLT 12 features to PaymentParams
Valentine Wallace [Wed, 3 May 2023 18:05:20 +0000 (14:05 -0400)]
Add BOLT 12 features to PaymentParams

18 months agoMove BOLT11 features from top level PaymentParams to Payee::Clear
Valentine Wallace [Wed, 3 May 2023 17:04:25 +0000 (13:04 -0400)]
Move BOLT11 features from top level PaymentParams to Payee::Clear

Since blinded payees don't have this.

18 months agoError if BOLT 11 features are provided for blinded payment params
Valentine Wallace [Sat, 29 Apr 2023 19:37:51 +0000 (15:37 -0400)]
Error if BOLT 11 features are provided for blinded payment params

18 months agoMove payee node id from top level PaymentParams to Payee::Clear
Valentine Wallace [Sat, 29 Apr 2023 21:13:02 +0000 (17:13 -0400)]
Move payee node id from top level PaymentParams to Payee::Clear

Since blinded payees don't have one

18 months agoMerge pull request #1794 from dunxen/2022-10-dualfunding-act-1
Wilmer Paulino [Mon, 8 May 2023 17:47:51 +0000 (10:47 -0700)]
Merge pull request #1794 from dunxen/2022-10-dualfunding-act-1

Dual funding and interactive tx construction wire messages

18 months agoMerge pull request #2269 from TheBlueMatt/2023-05-doc-events-present
Matt Corallo [Mon, 8 May 2023 16:39:15 +0000 (16:39 +0000)]
Merge pull request #2269 from TheBlueMatt/2023-05-doc-events-present

Document when event fields are `Some`

18 months agoMerge pull request #2265 from wpaulino/channel-force-closed-update-err
Matt Corallo [Mon, 8 May 2023 16:33:14 +0000 (16:33 +0000)]
Merge pull request #2265 from wpaulino/channel-force-closed-update-err

Prevent ChannelForceClosed monitor update error after detecting spend

18 months agoMerge pull request #2267 from TheBlueMatt/2023-05-better-scb-err
Matt Corallo [Sat, 6 May 2023 00:58:18 +0000 (00:58 +0000)]
Merge pull request #2267 from TheBlueMatt/2023-05-better-scb-err

Mention lnd's SCB feature in the corresponding error message

18 months agoAdd & generate dual-funding message fuzzing
Duncan Dean [Mon, 13 Mar 2023 09:44:31 +0000 (11:44 +0200)]
Add & generate dual-funding message fuzzing

18 months agoAdd new wire messaging and events but don't handle them
Duncan Dean [Tue, 1 Nov 2022 14:12:06 +0000 (16:12 +0200)]
Add new wire messaging and events but don't handle them

18 months agoAdd message structs required for dual-funded channels
Duncan Dean [Thu, 20 Oct 2022 20:56:37 +0000 (22:56 +0200)]
Add message structs required for dual-funded channels

This is the first of a set of PRs to enable the experimental dual-funded
channels feature using interactive transaction construction. This allows
both the channel initiator and channel acceptor to contribute funds
towards the channel.

18 months agoDocuemnt when `PaymentPathFailed::payment_id` is `Some` 2023-05-doc-events-present
Matt Corallo [Fri, 5 May 2023 04:08:55 +0000 (04:08 +0000)]
Docuemnt when `PaymentPathFailed::payment_id` is `Some`

The `PaymentPathFailed::payment_id` field has been `Some` since
the field was added in
73f601fd3d1c9defe553392264ca6dbcc53e4334.

18 months agoDocument when `PaymentPathSuccessful::payment_hash` is filled in.
Matt Corallo [Fri, 5 May 2023 03:33:54 +0000 (03:33 +0000)]
Document when `PaymentPathSuccessful::payment_hash` is filled in.

The `payment_hash` field in `PaymentPathSuccessful` is always
`Some` as long as the pening payment tracker has a `payment_hash`,
which is true for all `Pending` payments as well as all `Fulfilled`
payments starting with the commit which added
`PaymentPathSuccessful` -
3b5c370b404e2f5a8f3c35093b97406f149a9340c177c05252574083d68df0da.

18 months agoImprove logging around redundant force close monitor updates
Wilmer Paulino [Thu, 4 May 2023 22:37:25 +0000 (15:37 -0700)]
Improve logging around redundant force close monitor updates

18 months agoMention lnd's SCB feature in the corresponding error message 2023-05-better-scb-err
Matt Corallo [Fri, 5 May 2023 00:13:25 +0000 (00:13 +0000)]
Mention lnd's SCB feature in the corresponding error message

It's a bit confusing when we see only "Peer sent a garbage
channel_reestablish" when a peer uses lnd's SCB feature to ask us
to broadcast the latest state. This updates the error message to be
a bit clearer.

18 months agoPrevent ChannelForceClosed monitor update error after detecting spend
Wilmer Paulino [Thu, 4 May 2023 22:16:17 +0000 (15:16 -0700)]
Prevent ChannelForceClosed monitor update error after detecting spend

If we detected a spend for a channel onchain prior to handling its
`ChannelForceClosed` monitor update, we'd log a concerning error
message and return an error unnecessarily. The channel has already been
closed, so handling the `ChannelForceClosed` monitor update at this
point should be a no-op.

18 months agoMerge pull request #2111 from TheBlueMatt/2023-03-sent-persist-order-prep
Matt Corallo [Thu, 4 May 2023 21:26:44 +0000 (21:26 +0000)]
Merge pull request #2111 from TheBlueMatt/2023-03-sent-persist-order-prep

Setup Support for delaying `ChannelMonitorUpdate` flight until an `Event` completes

18 months agoMerge pull request #2262 from Kixunil/remove-serde-error-allocation
Wilmer Paulino [Thu, 4 May 2023 17:30:32 +0000 (10:30 -0700)]
Merge pull request #2262 from Kixunil/remove-serde-error-allocation

Remove unneeded allocation

18 months agoError if clear hints are provided for blinded PaymentParams
Valentine Wallace [Sat, 29 Apr 2023 18:47:59 +0000 (14:47 -0400)]
Error if clear hints are provided for blinded PaymentParams

18 months agoGroundwork for refactoring PaymentParams::Hints to ::Payee
Valentine Wallace [Wed, 26 Apr 2023 19:15:19 +0000 (15:15 -0400)]
Groundwork for refactoring PaymentParams::Hints to ::Payee

Minor changes in preparation for supporting route blinding in
PaymentParameters. In the next commit, we'll be moving more
unblinded-payee-specific fields from the top level parameters into the clear
enum variant.

18 months agoRemove unneeded allocation
Martin Habovstiak [Thu, 4 May 2023 09:21:04 +0000 (11:21 +0200)]
Remove unneeded allocation

`<E as serde::de::Error>::custom()` accepts any `T: Display`, not just
`String`. Therefore it accepts `Arguments<'_>` too so we can use
`format_args!()` instead of `format!()`.

See https://github.com/lightningdevkit/rust-lightning/pull/2187#discussion_r1168781355

18 months agoMerge pull request #2246 from arik-so/2023-04-sign-module
Matt Corallo [Wed, 3 May 2023 16:53:36 +0000 (16:53 +0000)]
Merge pull request #2246 from arik-so/2023-04-sign-module

Move keysinterface.rs to a directory-level module called sign

18 months agoMerge pull request #2219 from benthecarman/custom-closing-address
Matt Corallo [Wed, 3 May 2023 16:33:57 +0000 (16:33 +0000)]
Merge pull request #2219 from benthecarman/custom-closing-address

Add ability to set shutdown script when closing channel

18 months agoMove keysinterface.rs to a directory-level module called sign.
Arik Sosman [Fri, 28 Apr 2023 19:11:37 +0000 (14:11 -0500)]
Move keysinterface.rs to a directory-level module called sign.

18 months agoMerge pull request #2249 from TheBlueMatt/2023-04-less-pm-bounds
Matt Corallo [Wed, 3 May 2023 01:41:17 +0000 (01:41 +0000)]
Merge pull request #2249 from TheBlueMatt/2023-04-less-pm-bounds

Trivial PeerManager cleanups

18 months agoExpose a trait impl'd for all `PeerManager` for use as a bound 2023-04-less-pm-bounds
Matt Corallo [Sat, 29 Apr 2023 18:45:59 +0000 (18:45 +0000)]
Expose a trait impl'd for all `PeerManager` for use as a bound

A while back, in tests, we added a `AChannelManager` trait, which
is implemented for all `ChannelManager`s, and can be used as a
bound when we need a `ChannelManager`, rather than having to
duplicate all the bounds of `ChannelManager` everywhere.

Here we do the same thing for `PeerManager`, but make it public and
use it to clean up `lightning-net-tokio` and
`lightning-background-processor`.

We should likely do the same for `AChannelManager`, but that's left
as a followup.

18 months agoMerge pull request #2253 from dunxen/2023-05-removeoptionalfield
Matt Corallo [Tue, 2 May 2023 22:02:04 +0000 (22:02 +0000)]
Merge pull request #2253 from dunxen/2023-05-removeoptionalfield

Remove `OptionalField` and make `DataLossProtect` fields mandatory

18 months agoAdd ability to set shutdown script when closing channel
benthecarman [Sun, 23 Apr 2023 07:14:26 +0000 (02:14 -0500)]
Add ability to set shutdown script when closing channel

18 months agoMerge pull request #2244 from benthecarman/signature-size
Wilmer Paulino [Tue, 2 May 2023 19:01:51 +0000 (12:01 -0700)]
Merge pull request #2244 from benthecarman/signature-size

Incorporate low-R values into estimate signature size

18 months agoSet data_loss_protect_required
Duncan Dean [Tue, 2 May 2023 18:26:46 +0000 (20:26 +0200)]
Set data_loss_protect_required

18 months agoStore + process pending `ChannelMonitorUpdate`s in `Channel` 2023-03-sent-persist-order-prep
Matt Corallo [Fri, 17 Mar 2023 04:55:30 +0000 (04:55 +0000)]
Store + process pending `ChannelMonitorUpdate`s in `Channel`

The previous commits set up the ability for us to hold
`ChannelMonitorUpdate`s which are pending until we're ready to pass
them to users and have them be applied. However, if the
`ChannelManager` is persisted while we're waiting to give the user
a `ChannelMonitorUpdate` we'll be confused on restart - seeing our
latest `ChannelMonitor` state as stale compared to our
`ChannelManager` - a critical error.

Luckily the solution is trivial, we simply need to store the
pending `ChannelMonitorUpdate` state and load it with the
`ChannelManager` data, allowing stale monitors on load as long as
we have the missing pending updates between where we are and the
latest `ChannelMonitor` state.

18 months agoHandle `EventCompletionAction`s after events complete
Matt Corallo [Thu, 16 Mar 2023 03:33:20 +0000 (03:33 +0000)]
Handle `EventCompletionAction`s after events complete

This adds handling of the new `EventCompletionAction`s after
`Event`s are handled, letting `ChannelMonitorUpdate`s which were
blocked fly after a relevant `Event`.

18 months agoTrack an `EventCompletionAction` for after an `Event` is processed
Matt Corallo [Fri, 28 Apr 2023 04:24:25 +0000 (04:24 +0000)]
Track an `EventCompletionAction` for after an `Event` is processed

This will allow us to block `ChannelMonitorUpdate`s on `Event`
processing in the next commit.

Note that this gets dangerously close to breaking forwards
compatibility - if we have an `Event` with an
`EventCompletionAction` tied to it, we persist a new, even, TLV in
the `ChannelManager`. Hopefully this should be uncommon, as it
implies an `Event` was delayed until after a full round-trip to a
peer.

18 months agoAllow holding `ChannelMonitorUpdate`s until later, completing one
Matt Corallo [Wed, 15 Mar 2023 23:16:06 +0000 (23:16 +0000)]
Allow holding `ChannelMonitorUpdate`s until later, completing one

In the coming commits, we need to delay `ChannelMonitorUpdate`s
until future actions (specifically `Event` handling). However,
because we should only notify users once of a given
`ChannelMonitorUpdate` and they must be provided in-order, we need
to track which ones have or have not been given to users and, once
updating resumes, fly the ones that haven't already made it to
users.

To do this we simply add a `bool` in the `ChannelMonitorUpdate` set
stored in the `Channel` which indicates if an update flew and
decline to provide new updates back to the `ChannelManager` if any
updates have their flown bit unset.

Further, because we'll now by releasing `ChannelMonitorUpdate`s
which were already stored in the pending list, we now need to
support getting a `Completed` result for a monitor which isn't the
only pending monitor (or even out of order), thus we also rewrite
the way monitor updates are marked completed.

18 months agoMerge pull request #2213 from benthecarman/error-sign-provider-addrs
Matt Corallo [Tue, 2 May 2023 17:48:05 +0000 (17:48 +0000)]
Merge pull request #2213 from benthecarman/error-sign-provider-addrs

Allow get_shutdown_scriptpubkey and get_destination_script to return an Error

18 months agoRemove `OptionalField` and move `shutdown_scriptpubkey` into TLV stream
Duncan Dean [Mon, 1 May 2023 20:52:30 +0000 (22:52 +0200)]
Remove `OptionalField` and move `shutdown_scriptpubkey` into TLV stream

As pointed out in https://github.com/lightning/bolts/pull/754/commits/6656b70,
we can move the `shutdown_scriptpubkey` field into the TLV streams of
`OpenChannel` and `AcceptChannel` without affecting the resulting encoding.

We use `WithoutLength` encoding here to ensure that we do not encode a
length prefix along with `Script` as is normally the case.

18 months agoAllow get_shutdown_scriptpubkey and get_destination_script to return an error
benthecarman [Sat, 22 Apr 2023 05:48:28 +0000 (00:48 -0500)]
Allow get_shutdown_scriptpubkey and get_destination_script to return an error

18 months agoIncorporate low-R values into estimate signature size
benthecarman [Tue, 2 May 2023 07:01:37 +0000 (02:01 -0500)]
Incorporate low-R values into estimate signature size

18 months agoMake `DataLossProtect` fields required and remove wrappers
Duncan Dean [Mon, 1 May 2023 20:23:20 +0000 (22:23 +0200)]
Make `DataLossProtect` fields required and remove wrappers

The fields provided by `DataLossProtect` have been mandatory since
https://github.com/lightning/bolts/pull/754/commits/6656b70, regardless
of whether `option_dataloss_protect` or `option_remote_key` feature bits
are set.

We move the fields out of `DataLossProtect` to make encoding definitions
more succinct with `impl_writeable_msg!` and to reduce boilerplate.

This paves the way for completely removing `OptionalField` in subsequent
commits.

18 months agoMove the `CustomMessageHandler` into the `MessageHandler` struct
Matt Corallo [Sat, 29 Apr 2023 17:58:15 +0000 (17:58 +0000)]
Move the `CustomMessageHandler` into the `MessageHandler` struct

`PeerManager` takes a `MessageHandler` struct which contains all
the known message handlers for it to pass messages to. It then,
separately, takes a `CustomMessageHandler`. This makes no sense, we
should simply include the `CustomMessageHandler` in the
`MessageHandler` struct for consistency.

18 months agoMerge pull request #2245 from TheBlueMatt/2023-04-ping-count-overflow
Wilmer Paulino [Fri, 28 Apr 2023 19:15:02 +0000 (12:15 -0700)]
Merge pull request #2245 from TheBlueMatt/2023-04-ping-count-overflow

Fix overflow in `awaiting_pong_timer...` with too many peers

18 months agoMerge pull request #2217 from alecchendev/2023-04-expose-hash-in-balance
Wilmer Paulino [Fri, 28 Apr 2023 18:11:01 +0000 (11:11 -0700)]
Merge pull request #2217 from alecchendev/2023-04-expose-hash-in-balance

Expose `PaymentHash` and `PaymentPreimage` in `Balance`

18 months agoMerge pull request #2239 from valentinewallace/2023-04-remove-redundant-final-cltv...
Wilmer Paulino [Fri, 28 Apr 2023 17:46:51 +0000 (10:46 -0700)]
Merge pull request #2239 from valentinewallace/2023-04-remove-redundant-final-cltv-param

Remove redundant `final_cltv_delta` param from `get_route`

18 months agoFix overflow in `awaiting_pong_timer...` with too many peers 2023-04-ping-count-overflow
Matt Corallo [Fri, 28 Apr 2023 16:19:04 +0000 (16:19 +0000)]
Fix overflow in `awaiting_pong_timer...` with too many peers

If we have more than
127 / `MAX_BUFFER_DRAIN_TICK_INTERVALS_PER_PEER` (31) peers,
`awaiting_pong_timer_tick_intervals` can overflow before we hit
the limit. This isn't super harmful, we'll still disconnect peers
as long as they don't send *any* messages between two pings, but it
does cause us to not disconnect peers which are extremely slow in
responding to messages, e.g. because they are overloaded.

18 months agoMerge pull request #2230 from freddiekrugerrand/2228-validatechainhash
Matt Corallo [Thu, 27 Apr 2023 23:00:42 +0000 (23:00 +0000)]
Merge pull request #2230 from freddiekrugerrand/2228-validatechainhash

Check chain hash for channel announcement and update

18 months agoMerge pull request #2044 from freddiekrugerrand/1782-limitchannelhints
Matt Corallo [Thu, 27 Apr 2023 22:02:16 +0000 (22:02 +0000)]
Merge pull request #2044 from freddiekrugerrand/1782-limitchannelhints

Limit route hints to three channels

18 months agoRemove redundant final_cltv_delta param from get_route
Valentine Wallace [Thu, 27 Apr 2023 20:49:02 +0000 (16:49 -0400)]
Remove redundant final_cltv_delta param from get_route

PaymentParameters already includes this value.

This set us up to better support route blinding, since there is no known
final_cltv_delta when paying to a blinded route.

18 months agoMerge pull request #2234 from dunxen/2023-04-bpteststemp
Matt Corallo [Wed, 26 Apr 2023 17:49:52 +0000 (17:49 +0000)]
Merge pull request #2234 from dunxen/2023-04-bpteststemp

Use `env::temp_dir()` for BP tests

18 months agoMerge pull request #2229 from TheBlueMatt/2023-04-115-bindings-upstream-2
Matt Corallo [Wed, 26 Apr 2023 17:34:18 +0000 (17:34 +0000)]
Merge pull request #2229 from TheBlueMatt/2023-04-115-bindings-upstream-2

Trivial Bindings Updates

18 months agoMerge pull request #2233 from TheBlueMatt/2023-04-fix-future-leak
Wilmer Paulino [Wed, 26 Apr 2023 17:27:29 +0000 (10:27 -0700)]
Merge pull request #2233 from TheBlueMatt/2023-04-fix-future-leak

Fix a leak in FutureState when a Notifier is dropped un-woken

18 months agoCheck chain hash for channel announcement and update
Fred Walker [Wed, 26 Apr 2023 12:58:05 +0000 (08:58 -0400)]
Check chain hash for channel announcement and update

18 months agoUse `env::temp_dir()` for BP tests
Duncan Dean [Wed, 26 Apr 2023 12:57:18 +0000 (14:57 +0200)]
Use `env::temp_dir()` for BP tests

Currently `BackgroundProcessor` tests create persister directories in the
current working directory and rely on cleaning up in a `Drop` implementation.

Unfortunately, it seems that in the async tests that nodes are not
`drop()`ed for some reason and so the directories created by those
tests remain behind in the current working directory.

This commit at least ensures that these test directories are created in
a temporary location for the OS using `temp_dir()`. It doesn't aim to
solve the lack of cleanup in the async tests.

Partial fix for #2224 but I believe it's enough to resolve it as these
temp directories that do remain will be purged by the OS at some stage
and are overwritten by subsequent tests if there is a conflict.

18 months agoFix a leak in `FutureState` when a `Notifier` is dropped un-woken 2023-04-fix-future-leak
Matt Corallo [Wed, 26 Apr 2023 05:01:13 +0000 (05:01 +0000)]
Fix a leak in `FutureState` when a `Notifier` is dropped un-woken

If a `Notifier` has an internal `FutureState` which gathers some
sleeper callbacks, but is never actaully woken, those callbacks
will leak due to a circular `Arc` reference when the `Notifier` is
`drop`'d.

Because `Notifier`s are rarely `drop`'d in production this isn't a
huge deal, but shows up materially in bindings tests as they spawn
many nodes over the course of a short test.

Fixes #2232

18 months agoHold a reference to the `Arc<FutureState>` when completing futures
Matt Corallo [Wed, 26 Apr 2023 04:29:59 +0000 (04:29 +0000)]
Hold a reference to the `Arc<FutureState>` when completing futures

This will allow us to pass in that state to the callbacks in the
next commit.

18 months agoAdd a bindings constructor for `lightning-invoice`'s `Sha256` wrapper 2023-04-115-bindings-upstream-2
Matt Corallo [Tue, 25 Apr 2023 17:35:24 +0000 (17:35 +0000)]
Add a bindings constructor for `lightning-invoice`'s `Sha256` wrapper

18 months ago[bindings] Disable BOLT12 builders which require move semantics
Matt Corallo [Tue, 25 Apr 2023 06:10:05 +0000 (06:10 +0000)]
[bindings] Disable BOLT12 builders which require move semantics

18 months agoLimit phantom invoice hints to 3
Fred Walker [Thu, 2 Mar 2023 19:37:16 +0000 (14:37 -0500)]
Limit phantom invoice hints to 3

18 months agoMove phantom route hint selection into its own function
Fred Walker [Thu, 2 Mar 2023 19:34:13 +0000 (14:34 -0500)]
Move phantom route hint selection into its own function

18 months agoMerge pull request #2222 from benthecarman/pub-utxo-resolver
Matt Corallo [Tue, 25 Apr 2023 02:01:06 +0000 (02:01 +0000)]
Merge pull request #2222 from benthecarman/pub-utxo-resolver

18 months agoMerge pull request #2211 from TheBlueMatt/2023-04-0.0.115-cut v0.0.115
Matt Corallo [Tue, 25 Apr 2023 00:20:18 +0000 (00:20 +0000)]
Merge pull request #2211 from TheBlueMatt/2023-04-0.0.115-cut

Cut 0.0.115

18 months agoAdd 0.0.115 CHANGELOG entries 2023-04-0.0.115-cut
Matt Corallo [Fri, 21 Apr 2023 23:28:25 +0000 (23:28 +0000)]
Add 0.0.115 CHANGELOG entries

18 months agoBump crate versions to 0.0.115/invoice 0.23
Matt Corallo [Fri, 21 Apr 2023 23:36:43 +0000 (23:36 +0000)]
Bump crate versions to 0.0.115/invoice 0.23

18 months agoMerge pull request #2004 from tnull/2023-02-add-async-bp-example
Matt Corallo [Mon, 24 Apr 2023 22:38:40 +0000 (22:38 +0000)]
Merge pull request #2004 from tnull/2023-02-add-async-bp-example

Add Tokio example to `process_events_async` docs

18 months agoMerge pull request #2209 from TheBlueMatt/2023-04-better-discon-err-msg
Matt Corallo [Mon, 24 Apr 2023 21:22:06 +0000 (21:22 +0000)]
Merge pull request #2209 from TheBlueMatt/2023-04-better-discon-err-msg

Clarify the error message when we disconnect a peer

18 months agoMerge pull request #2220 from TheBlueMatt/2023-04-dont-ban-cln
Matt Corallo [Mon, 24 Apr 2023 21:15:08 +0000 (21:15 +0000)]
Merge pull request #2220 from TheBlueMatt/2023-04-dont-ban-cln

Don't remove nodes if there's no channel_update for a temp failure

18 months agoAdd Tokio example to `process_events_async` docs
Elias Rohrer [Thu, 2 Feb 2023 20:55:58 +0000 (14:55 -0600)]
Add Tokio example to `process_events_async` docs

18 months agoAdd function for updating network graph with announcement with no UTXO resolver
benthecarman [Mon, 24 Apr 2023 13:10:25 +0000 (08:10 -0500)]
Add function for updating network graph with announcement with no UTXO resolver

18 months agoDon't remove nodes if there's no channel_update for a temp failure 2023-04-dont-ban-cln
Matt Corallo [Sun, 23 Apr 2023 16:17:29 +0000 (16:17 +0000)]
Don't remove nodes if there's no channel_update for a temp failure

Previously, we were requiring any `UPDATE` onion errors to include
a `channel_update`, as the spec mandates[1]. If we see an onion
error which is missing one we treat it as a misbehaving node that
isn't behaving according to the spec and simply remove the node.

Sadly, it appears at least some versions of CLN are such nodes, and
opt to not include `channel_update` at all if they're returning a
`temporary_channel_failure`. This causes us to completely remove
CLN nodes from our graph after they fail to forward our HTLC.

While CLN is violating the spec here, there's not a lot of reason
to not allow it, so we go ahead and do so here, treating it simply
as any other failure by letting the scorer handle it.

[1] The spec says `Please note that the channel_update field is
mandatory in messages whose failure_code includes the UPDATE flag`
however doesn't repeat it in the requirements section so its not
crazy that someone missed it when implementing.

18 months agoRemove unused import in functional_test_utils
Matt Corallo [Mon, 24 Apr 2023 17:57:06 +0000 (17:57 +0000)]
Remove unused import in functional_test_utils

18 months agoFix unused `Secp256k1` context in monitor_tests
Matt Corallo [Sun, 23 Apr 2023 16:54:53 +0000 (16:54 +0000)]
Fix unused `Secp256k1` context in monitor_tests

18 months agoMerge pull request #2221 from TheBlueMatt/2023-04-bp-exit-fast
Matt Corallo [Mon, 24 Apr 2023 16:47:47 +0000 (16:47 +0000)]
Merge pull request #2221 from TheBlueMatt/2023-04-bp-exit-fast

Check for `background-processor` exit condition before+after sleep

18 months agoMerge pull request #2146 from valentinewallace/2023-03-blinded-pathfinding-groundwork
Matt Corallo [Mon, 24 Apr 2023 16:46:15 +0000 (16:46 +0000)]
Merge pull request #2146 from valentinewallace/2023-03-blinded-pathfinding-groundwork

Blinded pathfinding groundwork

18 months agoCheck for `background-processor` exit condition before+after sleep 2023-04-bp-exit-fast
Matt Corallo [Mon, 24 Apr 2023 03:48:42 +0000 (03:48 +0000)]
Check for `background-processor` exit condition before+after sleep

In a synchronous `BackgroundProcessor`, the exit is done by setting
an atomic flag, which is most likely to happen while we're asleep.
Thus, we previously checked for the exit condition after the sleep
(and after we persisted the `ChannelManager`, if required, though
this is no longer required and dates back to when we didn't do a
re-persist after breaking out of the main loop).

For an async `background-processor`, this is also fine, however
because of the relatively longer sleep time, if the exit flag is
set via a sleep check returning true during event processing, we
may end up delaying exit rather substantially.

In order to avoid this, we simply check for the exit condition both
before and immediately after the sleep in `background-processor`.

19 months agoAdd payment hash to `MaybePreimageClaimableHTLC`
Alec Chen [Sun, 23 Apr 2023 04:21:40 +0000 (23:21 -0500)]
Add payment hash to `MaybePreimageClaimableHTLC`

19 months agoAdd payment hash to `MaybeTimeoutClaimableHTLC`
Alec Chen [Sun, 23 Apr 2023 06:03:51 +0000 (01:03 -0500)]
Add payment hash to `MaybeTimeoutClaimableHTLC`

19 months agoAdd payment preimage and hash to `ContentiousClaimable`
Alec Chen [Sun, 23 Apr 2023 06:03:15 +0000 (01:03 -0500)]
Add payment preimage and hash to `ContentiousClaimable`

19 months agoDRY up repeated HTLC `Balance`s in tests
Alec Chen [Sun, 23 Apr 2023 05:37:13 +0000 (00:37 -0500)]
DRY up repeated HTLC `Balance`s in tests

This makes it easier to add a new field on the `Balance` variants.

19 months agoAdd `PartialOrd`, `Ord` to `PaymentHash`, `PaymentPreimage` for tests
Alec Chen [Sun, 23 Apr 2023 04:04:26 +0000 (23:04 -0500)]
Add `PartialOrd`, `Ord` to `PaymentHash`, `PaymentPreimage` for tests

19 months agoMerge pull request #2212 from wpaulino/off-by-one-locktime
Matt Corallo [Sat, 22 Apr 2023 21:54:06 +0000 (21:54 +0000)]
Merge pull request #2212 from wpaulino/off-by-one-locktime

Fix off-by-one finalized transaction locktime

19 months agoFix off-by-one finalized transaction locktime
Wilmer Paulino [Sat, 15 Apr 2023 00:03:51 +0000 (17:03 -0700)]
Fix off-by-one finalized transaction locktime

While these transactions were still valid, we incorrectly assumed that
they would propagate with a locktime of `current_height + 1`, when in
reality, only those with a locktime strictly lower than the next height
in the chain are allowed to enter the mempool.

19 months agoCatch up test nodes to latest block height
Wilmer Paulino [Sun, 16 Apr 2023 05:12:11 +0000 (22:12 -0700)]
Catch up test nodes to latest block height

In a future commit, we plan to correctly enforce that the spending
transaction has a valid locktime relative to the chain for the node
broascasting it in `TestBroadcaster::broadcast_transaction` to. We catch
up these test node instances to their expected height, such that we do
not fail said enforcement.

19 months agoUse current height when generating claims on block_disconnected
Wilmer Paulino [Fri, 21 Apr 2023 22:54:03 +0000 (15:54 -0700)]
Use current height when generating claims on block_disconnected

The `height` argument passed to `OnchainTxHandler::block_disconnected`
represents the height being disconnected, and not the current height.
Due to the incorrect assumption, we'd generate a claim with a locktime
in the future.

Ultimately, we shouldn't be generating claims within
`block_disconnected`. Rather, we should retry the claim at a later block
height, since the bitcoin blockchain does not ever roll back without
connecting a new block. Addressing this is left for future work.

19 months agoMerge pull request #2199 from tnull/2023-04-fix-async-event-processing
Matt Corallo [Sat, 22 Apr 2023 01:45:06 +0000 (01:45 +0000)]
Merge pull request #2199 from tnull/2023-04-fix-async-event-processing

Allow async events processing without holding `total_consistency_lock`

19 months agoMerge pull request #2208 from wpaulino/monitor-rebroadcast-pending-claims
Matt Corallo [Fri, 21 Apr 2023 23:33:52 +0000 (23:33 +0000)]
Merge pull request #2208 from wpaulino/monitor-rebroadcast-pending-claims

Implement pending claim rebroadcast on force-closed channels

19 months agoCall ChainMonitor::rebroadcast_pending_claims on REBROADCAST_TIMER tick
Wilmer Paulino [Mon, 17 Apr 2023 18:52:15 +0000 (11:52 -0700)]
Call ChainMonitor::rebroadcast_pending_claims on REBROADCAST_TIMER tick

This will prompt monitors to rebroadcast/fee-bump their pending claims
on a force-closed channel once on startup and every 30 seconds after.

19 months agoImplement pending claim rebroadcast on force-closed channels
Wilmer Paulino [Mon, 17 Apr 2023 21:17:53 +0000 (14:17 -0700)]
Implement pending claim rebroadcast on force-closed channels

This attempts to rebroadcast/fee-bump each pending claim a monitor is
tracking for a force-closed channel. This is crucial in preventing
certain classes of pinning attacks and ensures reliability if
broadcasting fails. For implementations of `FeeEstimator` that also
support mempool fee estimation, we may broadcast a fee-bumped claim
instead, ensuring we can also react to mempool fee spikes between
blocks.

19 months agoExtend OnchainTxHandler::generate_claim to optionally force feerate bump
Wilmer Paulino [Thu, 20 Apr 2023 21:16:24 +0000 (14:16 -0700)]
Extend OnchainTxHandler::generate_claim to optionally force feerate bump

In the next commit, we plan to extend the `OnchainTxHandler` to retry
pending claims on a timer. This timer may fire with much more frequency
than incoming blocks, so we want to avoid manually bumping feerates
(currently by 25%) each time our fee estimator provides a lower feerate
than before.

19 months agoFix outbound_payment for new Path::blinded_tail
Valentine Wallace [Wed, 19 Apr 2023 17:20:58 +0000 (13:20 -0400)]
Fix outbound_payment for new Path::blinded_tail

19 months agoUpdate changelog for backwards compat
Valentine Wallace [Sun, 9 Apr 2023 21:58:34 +0000 (17:58 -0400)]
Update changelog for backwards compat

19 months agoAccount for Path::blinded_tail when adding a shadow cltv offset
Valentine Wallace [Sun, 9 Apr 2023 20:28:12 +0000 (16:28 -0400)]
Account for Path::blinded_tail when adding a shadow cltv offset

19 months agoTest scoring paths with blinded tails
Valentine Wallace [Wed, 19 Apr 2023 15:56:58 +0000 (11:56 -0400)]
Test scoring paths with blinded tails

19 months agoAccount for Path::blinded_tail in InflightHtlcs::process_path
Valentine Wallace [Sun, 9 Apr 2023 19:57:28 +0000 (15:57 -0400)]
Account for Path::blinded_tail in InflightHtlcs::process_path

19 months agoSupport (de)serializing Path::blinded_tails in HTLCSource
Valentine Wallace [Sun, 9 Apr 2023 19:49:19 +0000 (15:49 -0400)]
Support (de)serializing Path::blinded_tails in HTLCSource

19 months agoSupport (de)serializing Path::blinded_tails in Routes
Valentine Wallace [Sun, 9 Apr 2023 19:47:47 +0000 (15:47 -0400)]
Support (de)serializing Path::blinded_tails in Routes

19 months agoSupport (de)ser for Path::blinded_tails in events
Valentine Wallace [Sun, 9 Apr 2023 19:41:33 +0000 (15:41 -0400)]
Support (de)ser for Path::blinded_tails in events

19 months agoAdd blinded path {metadata} fields to Path, but disallow paying blinded paths for now
Valentine Wallace [Tue, 18 Apr 2023 16:06:35 +0000 (12:06 -0400)]
Add blinded path {metadata} fields to Path, but disallow paying blinded paths for now

19 months agoMerge pull request #2210 from alandotcom/patch-1
Matt Corallo [Fri, 21 Apr 2023 19:01:39 +0000 (19:01 +0000)]
Merge pull request #2210 from alandotcom/patch-1

Fix README typo