Elias Rohrer [Wed, 26 Oct 2022 09:24:28 +0000 (11:24 +0200)]
Rename chan state `ChannelFunded` to `ChannelReady`
We rename `ChannelState::ChannelFunded` to `ChannelState::ChannelReady`
as we'll be in this state when both sides sent the `ChannelReady`
messages, which may also be before funding in the 0conf case.
Matt Corallo [Mon, 31 Oct 2022 03:23:02 +0000 (03:23 +0000)]
Add missing break when scoring a path with a missing channel
If we send payments over a path where a channel ended up being
closed, we'll remove it before we call
`ProbabilisticPaymentScorer::payment_path_failed`. This should be
fine, except that `payment_path_failed` does not break out of its
scoring loop if a channel is missing, causing it to assign a
minimum available-liquidity of the payment amount even to channels
which our attempt never arrived at.
The fix is simple - add the missing check and break.
Avoid generating redundant claims after initial confirmation
These claims will never be valid as a previous claim has already
confirmed. If a previous claim is reorged out of the chain, a new claim
will be generated bypassing the new behavior.
While this doesn't change much for our existing transaction-based
claims, as broadcasting an already confirmed transaction acts as a NOP,
it prevents us from yielding redundant event-based claims, which will be
introduced as part of the anchors patchset.
Onion messages: fix edge case where we are the introduction node
If we're sending straight to a blinded route with no unblinded intermediate
hops, and we are the introduction node, we need to advance the blinded route by
one hop so that the second hop is the new introduction node.
Matt Corallo [Sat, 29 Oct 2022 18:30:37 +0000 (18:30 +0000)]
Make `htlc_maximum_msat` in `EffectiveCapacity` non-`Option`al
Because we now never generate an `EffectiveCapacity` with an
`htlc_maximum_msat` set to `None`, making it non-`Option`al
effectively removes dead code, which we do here.
Matt Corallo [Sat, 29 Oct 2022 18:24:36 +0000 (18:24 +0000)]
Require directional updates for a `DirectionalChannelInfo`
We currently construct `DirectedChannelInfo`s for routing before
checking if the given direction has its directional info filled in.
We then always check for directional info before actually deciding
to route over a channel, as otherwise we assume the channel is not
online.
This makes for somewhat redundant checks, and `DirectedCHannelInfo`
isn't, by itself, a very useful API. Because fetching the HTLC-max
or effective channel capacity gives spurious data if no directional
info is available, there's little reason to have that data
available, and so we here check for directional info first. This
effectively merges `DirectionalChannelInfo` and
`DirectionalChannelInfoWithUpdate`.
Matt Corallo [Wed, 26 Oct 2022 19:23:10 +0000 (19:23 +0000)]
Give us a self when reading a custom onion message
+ remove MaybeReadableArgs trait as it is now unused
+ remove onion_utils::DecodeInput as it would've now needed to be parameterized
by the CustomOnionMessageHandler trait, and we'd like to avoid either
implementing DecodeInput in messenger or having onion_utils depend on
onion_message::*
Co-authored-by: Matt Corallo <git@bluematt.me> Co-authored-by: Valentine Wallace <vwallace@protonmail.com>
Matt Corallo [Wed, 26 Oct 2022 21:55:23 +0000 (21:55 +0000)]
Export io::ErrorKind in bindings
The bindings have exported `io::Error` as, basically,
`io::ErrorKind`, for quite some time, so there's little reason to
not just export `io::ErrorKind` as well.
Matt Corallo [Thu, 29 Sep 2022 15:22:47 +0000 (15:22 +0000)]
Add `WriteableScore` bindings impl for `MultiThreadedLockableScore`
In 56b07e52aabdaca521987e765f1fa864966a5d49 we made
`MultiThreadedLockableScore` fully bindings-compatible. However, it
did not add a `WriteableScore` implementation for it. This was an
oversight as it is a `WriteableScore` in Rust and needs to be for
use in other parts of the API.
Here we add the required impl in a way that the bindings generator
is able to handle it and add conversion utilities.
Implement sending and receiving custom onion messages
This uses the work done in the preceding commits to implement encoding a user's
custom TLV in outbound onion messages, and decoding custom TLVs in inbound
onion messages, to be provided to the new CustomOnionMessageHandler.
As we're moving towards monitor update async being a supported
use-case, we shouldn't call an async monitor update "failed", but
rather "in progress". This simply updates the internal channel.rs
enum name to reflect the new thinking.
Matt Corallo [Sat, 20 Aug 2022 01:03:27 +0000 (01:03 +0000)]
Handle async initial ChannelMonitor persistence failing on restart
If the initial ChannelMonitor persistence is done asynchronously
but does not complete before the node restarts (with a
ChannelManager persistence), we'll start back up with a channel
present but no corresponding ChannelMonitor.
Because the Channel is pending-monitor-update and has not yet
broadcasted its initial funding transaction or sent channel_ready,
this is not a violation of our API contract nor a safety violation.
However, the previous code would refuse to deserialize the
ChannelManager treating it as an API contract violation.
The solution is to test for this case explicitly and drop the
channel entirely as if the peer disconnected before we received
the funding_signed for outbound channels or before sending the
channel_ready for inbound channels.
Matt Corallo [Thu, 13 Oct 2022 21:57:09 +0000 (21:57 +0000)]
Include all channel route hints if no connected channels exist
Mobile clients often take a second or two before they reconnect to
their peers as its not always clear immediately that connections
have been killed (especially on iOS). This can cause us to
spuriously fail to include route hints in our invoices if we're on
mobile.
The fix is simple, if we're selecting channels to include in route
hints and we're not not connected to the peer for any of our
channels, we should simply include the hints for all channels, even
though we're disconencted.
As we integrate the support of anchor outputs, we'll want to know if
each input we're working with came from an anchor outputs channel.
Instead of threading through a `opt_anchors` boolean across several
methods on `PackageSolvingData` and `PackageTemplate`, we decide to
store a reference in each `PackageSolvingData` variant instead that
features a change in behavior between channels with and without anchor
outputs.
Gursharan Singh [Tue, 11 Oct 2022 19:20:33 +0000 (15:20 -0400)]
Dedupe gossip msgs while updating networkGraph from RGS
While applying gossip info from RGS-server, number of harmless
errors might arise which should be ignored. E.g. client should not
fail if there is a duplicate gossip for same channel or duplicate
update.
Update send_onion_message API to take new OnionMessageContents enum
OnionMessageContents specifies the data TLV that the sender wants in the onion
message. This enum only has one variant for now, Custom. When offers are added,
additional variants for invoice, invoice_request, and invoice_error will be
added.
This commit does not actually implement sending the custom OM contents, just
the API change.
Parameterize OnionMessenger by new CustomOnionMessageHandler trait
OnionMessenger::new will now take a custom onion message handler trait
implementation. This handler will be used in upcoming commit(s) to handle
inbound custom onion messages.
The new trait also specifies what custom messages are supported via its
associated type, CustomMessage. This associated type must implement a new
CustomOnionMessagesContents trait, which requires custom messages to support
being written, being read, and supplying their TLV type.
Useful in decoding a custom message, so (a) the message type can be provided to
the handler and (b) None can be returned if the message type is unknown.
Used in upcoming commit(s) to support custom onion messages.
Matt Corallo [Wed, 5 Oct 2022 19:23:56 +0000 (19:23 +0000)]
Increase the default `liquidity_offset_half_life` to six hours
Even at relatively high payment volumes, decaying knowledge of each
individual channel every hour causes aggressive retrying of
channels as we quickly forget the state of a channel. Even with the
historical tracker, this isn't fully remedied, as we'll track the
history bounds with the decayed value.
Instead, we decay every six hours here, reducing how often we'll
retry a channel due to decay.
In addition to this, the decay likely needs to be substantially
more linear, as tracked in #1752.
Matt Corallo [Wed, 5 Oct 2022 19:10:06 +0000 (19:10 +0000)]
Rewrite documentation some on `ProbabilisticScorer`
We had some user confusion on how the probabilistic scorer works,
especially in reference to the half-life parameter. This attempts
to clarify how the bounds work, and how they are decayed.
Elias Rohrer [Mon, 10 Oct 2022 18:47:18 +0000 (14:47 -0400)]
Add `futures` CI check
This adds testing of the `futures` feature to CI. In order to avoid
introducing a dependency on `std`, we switch to using the `futures-util`
crate directly enabling only a subset of features. To this end, we also
switch to using the `select_biased!` macro, which is equivalent to
`select!` except that it doesn't choose ready futures pseudo-randomly
at runtime.
Matt Corallo [Thu, 6 Oct 2022 15:44:03 +0000 (15:44 +0000)]
Test a full `no-std` build in the `no-std-check` crate in CI
Rust is incredibly forgiving in attempts to access `std`, making it
rather difficult to test `no-std` properly. In practice, the only
decent way to do so is to actually build for a platform that does
not have `std`, which we do here by building the `no-std-check`
crate for `arm-thumbv7m-none-eabi`.
Duncan Dean [Fri, 26 Aug 2022 10:54:16 +0000 (12:54 +0200)]
Remove and track perm failed nodes & channels
We never had the `NetworkGraph::node_failed` method implemented. The
scorer now handles non-permanent failures by downgrading nodes, so we
don't want that implemented.
The method is renamed to `node_failed_permanent` to explicitly indicate
that this is the only case it handles. We also add tracking in the form
of two maps as fields of `NetworkGraph`, namely, `removed_nodes` and
`removed_channels`. We track these removed graph entries to ensure we
don't just resync them right away from gossip soon after removing them.
We stop tracking these removed nodes whenever `remove_stale_channels_and_tracking()`
is called and the entries have been tracked for longer than
`REMOVED_ENTRIES_TRACKING_AGE_LIMIT_SECS` which is currently set to one
week.
Matt Corallo [Fri, 7 Oct 2022 01:38:56 +0000 (01:38 +0000)]
Drop the subsecond part of timestamps when constructing invoices
We had a user who was confused why an invoice failed to round-trip
(i.e. was not `PartialEq` with itself after write/read) when a
subsecond creation time was used (e.g. via the `from_system_time`
constructor).
This commit should address this confusion by dropping subsecond
parts in easily-accessible constructors when creating BOLT 11
invoices.