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2 months agoDrop unused `PackageTemplate::height_original`
Matt Corallo [Thu, 5 Sep 2024 23:48:02 +0000 (23:48 +0000)]
Drop unused `PackageTemplate::height_original`

This has never been used, and its set to a fixed value of zero for
HTLCs on local commitment transactions making it impossible to rely
on so might as well remove it.

2 months agoRename `PackageTemplate::timelock` `counteraprty_spendable_height`
Matt Corallo [Fri, 6 Sep 2024 00:25:00 +0000 (00:25 +0000)]
Rename `PackageTemplate::timelock` `counteraprty_spendable_height`

This function was very confusing - its used to determine by when
we have to stop aggregating this claim with others as it starts to
be at risk of pinning due to the counterparty's ability to spend
the output.

It is not ever used as a timelock for a transaction, and thus its
name is very confusing.

Instead we rename it `counterparty_spendable_height`.

2 months agoRename claim cleaning match bool for accuracy
Matt Corallo [Thu, 5 Sep 2024 21:06:16 +0000 (21:06 +0000)]
Rename claim cleaning match bool for accuracy

We don't actually care if a confirmed transaction claimed other
outputs, only that it claimed a superset of the outputs in the
pending claim we're looking at. Thus, the variable to detect that
is renamed `is_claim_subset_of_tx` instead of `are_sets_equal`.

2 months agoMerge pull request #3290 from tnull/2024-09-add-tx-sync-copyright
Matt Corallo [Wed, 4 Sep 2024 14:13:37 +0000 (14:13 +0000)]
Merge pull request #3290 from tnull/2024-09-add-tx-sync-copyright

Add copyright notices to `lightning-transaction-sync` modules

2 months agoAdd copyright notices to `lightning-transaction-sync` modules
Elias Rohrer [Wed, 4 Sep 2024 11:02:45 +0000 (13:02 +0200)]
Add copyright notices to `lightning-transaction-sync` modules

2 months agoMerge pull request #3278 from TheBlueMatt/2024-08-124-relnotes v0.0.124
Matt Corallo [Tue, 3 Sep 2024 18:35:17 +0000 (18:35 +0000)]
Merge pull request #3278 from TheBlueMatt/2024-08-124-relnotes

Add an 0.0.124 CHANGELOG entry

2 months agoUpdate versions to 0.0.124 and invoice 0.32 types 0.1 release 2024-08-124-relnotes
Matt Corallo [Fri, 30 Aug 2024 15:05:24 +0000 (15:05 +0000)]
Update versions to 0.0.124 and invoice 0.32 types 0.1 release

2 months agoAdd an 0.0.124 CHANGELOG entry
Matt Corallo [Wed, 28 Aug 2024 15:32:59 +0000 (15:32 +0000)]
Add an 0.0.124 CHANGELOG entry

2 months agoMerge pull request #3285 from TheBlueMatt/2024-08-tx-too-small
Matt Corallo [Tue, 3 Sep 2024 17:53:08 +0000 (17:53 +0000)]
Merge pull request #3285 from TheBlueMatt/2024-08-tx-too-small

Correct handling of added `OP_RETURN` outputs

2 months agoMerge pull request #3284 from TheBlueMatt/2024-08-bindings-imports-suck
Matt Corallo [Tue, 3 Sep 2024 15:20:16 +0000 (15:20 +0000)]
Merge pull request #3284 from TheBlueMatt/2024-08-bindings-imports-suck

2 months agoCorrect `ANCHOR_INPUT_WITNESS_WEIGHT` constant 2024-08-tx-too-small
Matt Corallo [Tue, 3 Sep 2024 15:09:32 +0000 (15:09 +0000)]
Correct `ANCHOR_INPUT_WITNESS_WEIGHT` constant

`ANCHOR_INPUT_WITNESS_WEIGHT` is too high by two weight units,
likely it was calculated to include the SegWit marker bytes, but
it is used to describe an `Input::satisfaction_weight`, which does
not expect the marker bytes.

This corrects that oversight, reducing the constant by two and
adding the marker bytes back in our own internal weight
calculations. It also fixes a second issue where the constant was
too low by one when `grind_signatures` is not set, as that may
result in a signature being one byte longer than we expect.

2 months agoAdd a test for the past few commits
Matt Corallo [Fri, 30 Aug 2024 03:42:13 +0000 (03:42 +0000)]
Add a test for the past few commits

This adds a single test for coin selection which exercises the
issues fixed in the past three commits.

2 months agoDrop bogus debug assertion that we don't overpay on fees
Matt Corallo [Thu, 29 Aug 2024 22:47:32 +0000 (22:47 +0000)]
Drop bogus debug assertion that we don't overpay on fees

We should always select at least as many coins as is required to
meet the feerate target, but its perfectly fine if we overshoot.
Specifically, we may overshoot deliberately if we choose to burn
change to fee instead.

2 months agoHandle under-coin-selecting due to an added OP_RETURN output
Matt Corallo [Thu, 29 Aug 2024 20:43:10 +0000 (20:43 +0000)]
Handle under-coin-selecting due to an added OP_RETURN output

When we do coin selection for channel close anchor spends, we may
do coin selection targeting exactly the input values we need.
However, if coin selection does not include a change output, we may
add an OP_RETURN output, which may cause us to end up with less
fee than we wanted on the resulting package.

Here we address this issue by running coin selection twice - first
without seeking the extra weight of the OP_RETURN output, and again
if we find that we under-selected.

2 months agoEnsure we never try to broadcast a transaction <= 64 bytes
Matt Corallo [Thu, 22 Aug 2024 15:14:44 +0000 (15:14 +0000)]
Ensure we never try to broadcast a transaction <= 64 bytes

While these are consensus-valid, they have been nonstandard for
quite some time and will not relay nor confirm.

2 months agoSpecify imports manually in `types::features::sealed` 2024-08-bindings-imports-suck
Matt Corallo [Sun, 1 Sep 2024 01:08:38 +0000 (01:08 +0000)]
Specify imports manually in `types::features::sealed`

There's not a lot of reason to do this, but sadly the bindings
don't currently resolve wildcard imports at all, and I don't want
to deal with implementing it right now.

2 months agoMerge pull request #3282 from TheBlueMatt/2024-08-fix-bench-logging
Matt Corallo [Fri, 30 Aug 2024 21:24:51 +0000 (21:24 +0000)]
Merge pull request #3282 from TheBlueMatt/2024-08-fix-bench-logging

Dont output logs when benchmarking

2 months agoDont output logs when benchmarking 2024-08-fix-bench-logging
Matt Corallo [Fri, 30 Aug 2024 17:38:37 +0000 (17:38 +0000)]
Dont output logs when benchmarking

In 11ab302087622b546d116fc9679f601667d18c4d we accidentally removed
the `not(ldk_bench)` bound before outputting logs to stderr, which
we restore here. Instead of simply ignoring logs in benchmarks,
which we did previously, we instead format logs (in a way that LLVM
will not optimize out).

2 months agoRemove log level filtering in tests
Matt Corallo [Mon, 19 Aug 2024 21:07:46 +0000 (21:07 +0000)]
Remove log level filtering in tests

There's no reason why we should be filtering our logs during tests.
It seems mostly like the `TestLogger` was written more as a sample
logger than a test logger, but these days we have samples, so we
should just drop the filtering and show everything.

2 months agoMerge pull request #3280 from TheBlueMatt/2024-08-124rc v0.0.124-rc1
Matt Corallo [Thu, 29 Aug 2024 20:52:03 +0000 (20:52 +0000)]
Merge pull request #3280 from TheBlueMatt/2024-08-124rc

Bump versions to rc1

2 months agoMerge pull request #3279 from TheBlueMatt/2024-08-no-pub-usize
Matt Corallo [Thu, 29 Aug 2024 20:06:28 +0000 (20:06 +0000)]
Merge pull request #3279 from TheBlueMatt/2024-08-no-pub-usize

Use `u64` for `required_unknown_bits_from` indexes, not `usize`

2 months agoBump versions to rc1 2024-08-124rc
Matt Corallo [Thu, 29 Aug 2024 19:39:22 +0000 (19:39 +0000)]
Bump versions to rc1

2 months agoMerge pull request #3257 from tnull/2024-08-fix-is-public
Matt Corallo [Thu, 29 Aug 2024 19:39:30 +0000 (19:39 +0000)]
Merge pull request #3257 from tnull/2024-08-fix-is-public

Rename instances of `is_public` to `is_announced`

2 months agoRename `announced_channel` to `is_announced_for_forwarding`
Elias Rohrer [Thu, 29 Aug 2024 18:16:51 +0000 (20:16 +0200)]
Rename `announced_channel` to `is_announced_for_forwarding`

.. we rename the flag configuring whether we announce a channel or not.

2 months agoUse `u64` for `required_unknown_bits_from` indexes, not `usize` 2024-08-no-pub-usize
Matt Corallo [Thu, 29 Aug 2024 16:45:27 +0000 (16:45 +0000)]
Use `u64` for `required_unknown_bits_from` indexes, not `usize`

While `usize` should be fine, we're multiplying the index by 8 so
if we have a jumbo feature bit fitting in a 32-bit size type may
not quite work. More importantly, this would be the first use of a
`usize` in the public API and dealing with it in bindings is
annoying so we just replace with a `u64`.

2 months agoMerge pull request #3238 from Mirebella/clippy-checks
Matt Corallo [Thu, 29 Aug 2024 16:06:40 +0000 (16:06 +0000)]
Merge pull request #3238 from Mirebella/clippy-checks

Added clippy ignore rules for all errors and warnings

2 months agoMerge pull request #3275 from TheBlueMatt/2024-08-3259-followups
Matt Corallo [Thu, 29 Aug 2024 00:54:19 +0000 (00:54 +0000)]
Merge pull request #3275 from TheBlueMatt/2024-08-3259-followups

#3259 followups

2 months agoMerge pull request #3276 from arik-so/arik/2024/08/apply_monitor_updates_on_archive
Matt Corallo [Wed, 28 Aug 2024 21:53:43 +0000 (21:53 +0000)]
Merge pull request #3276 from arik-so/arik/2024/08/apply_monitor_updates_on_archive

Process updates before archiving monitors.

2 months agoProcess updates before archiving monitors.
Arik Sosman [Wed, 28 Aug 2024 16:33:14 +0000 (09:33 -0700)]
Process updates before archiving monitors.

Previously, `MonitorUpdatingPersister` was disregarding any unapplied
monitor updates when archiving them. This commit ensures that upon
reading monitors, their corresponding updates are also read and
applied prior to archiving.

2 months agoStore Broadcaster and FeeEstimator on MonitorUpdatingPersister.
Arik Sosman [Wed, 28 Aug 2024 16:32:35 +0000 (09:32 -0700)]
Store Broadcaster and FeeEstimator on MonitorUpdatingPersister.

`MonitorUpdatingPersister` does not currently correctly archive
monitors because it neglects any unapplied updates. In order to start
applying these updates, the archiving methods will require access to
instances of `BroadcasterInterface` and `FeeEstimator`.

This commit requires that the `MonitorUpdatingPersister` be
instantiated with those instances, obviating the need for passing
them around, and laying the foundation for the following commit.

2 months agoTest manual funding transaction `Event::DiscardFunding` generation 2024-08-3259-followups
Matt Corallo [Wed, 28 Aug 2024 14:50:52 +0000 (14:50 +0000)]
Test manual funding transaction `Event::DiscardFunding` generation

2 months agoCorrect manual shutdown detection on channel closure
Matt Corallo [Wed, 28 Aug 2024 14:35:54 +0000 (14:35 +0000)]
Correct manual shutdown detection on channel closure

In 5e874c3dc9cf1606a3cbbccab3a0d25089a97280 we'd intended to not
reveal the dummy funding transaction in `Event::DiscardFunding`.
However, instead of looking at the channel that was just closed,
the logic only looks at any other channels which were funded as a
part of the same batch. Because manually-funded transactions
cannot currently be done for batch funding, this was actually dead
code, preventing the new changes from taking effect.

2 months agoAdd additional documentation on `Channel::unbroadcasted_funding`
Matt Corallo [Wed, 28 Aug 2024 13:50:17 +0000 (13:50 +0000)]
Add additional documentation on `Channel::unbroadcasted_funding`

2 months agoMerge pull request #3268 from TheBlueMatt/2024-08-moar-feerate-categories
Matt Corallo [Wed, 28 Aug 2024 13:15:13 +0000 (13:15 +0000)]
Merge pull request #3268 from TheBlueMatt/2024-08-moar-feerate-categories

Split up `ConfirmationTarget` even more

2 months agoFix CI linting error
Mirebella [Wed, 28 Aug 2024 07:53:51 +0000 (09:53 +0200)]
Fix CI linting error

2 months agoAdd clippy ignore rules for all errors and warnings
Mirebella [Tue, 13 Aug 2024 11:41:16 +0000 (13:41 +0200)]
Add clippy ignore rules for all errors and warnings

2 months agoTest new `ConfirmationTarget` selection based on HTLC set 2024-08-moar-feerate-categories
Matt Corallo [Tue, 27 Aug 2024 16:47:57 +0000 (16:47 +0000)]
Test new `ConfirmationTarget` selection based on HTLC set

This updates `test_yield_anchors_events` to test both anchor
channels with and without HTLCs, and relies on overriding only the
singular expected `ConfirmationTarget` used, testing the new
`ConfirmationTarget::UrgentOnChainSweep` use.

2 months agoDon't ignore events in `test_yield_anchors_events`
Matt Corallo [Tue, 27 Aug 2024 16:44:58 +0000 (16:44 +0000)]
Don't ignore events in `test_yield_anchors_events`

Our tests should never ignore the events generated as they provide
critical context about what's happening in LDK. Here we fix
`test_yield_anchors_events` to avoid doing so.

2 months agoAdd a constructor and per-target override to `TestFeeEstimator`
Matt Corallo [Mon, 26 Aug 2024 21:31:27 +0000 (21:31 +0000)]
Add a constructor and per-target override to `TestFeeEstimator`

This will allow us to test `ConfirmationTarget`s used in functional
tests by setting an override on just the target we expect to be
used.

2 months agoAdd missing pending changelog for downgrade on unsafe funding
Matt Corallo [Tue, 27 Aug 2024 19:21:09 +0000 (19:21 +0000)]
Add missing pending changelog for downgrade on unsafe funding

2 months agoOnly generate an `Event::DiscardFunding` when we need to
Matt Corallo [Tue, 27 Aug 2024 19:17:06 +0000 (19:17 +0000)]
Only generate an `Event::DiscardFunding` when we need to

5e874c3dc9cf1606a3cbbccab3a0d25089a97280 changed
`Event::DiscardFunding` to not include a dummy transaction when we
were funded without a full funding tx, but in doing so started
generating `DiscardFunding` events on every channel closure rather
than only when there's actually still a pending funding broadcast.

This restores the previous behavior to only generate the event when
we should actually discard the funding tx.

2 months agoMerge pull request #3259 from vincenzopalazzo/macros/dummy-tx
Matt Corallo [Tue, 27 Aug 2024 19:16:57 +0000 (19:16 +0000)]
Merge pull request #3259 from vincenzopalazzo/macros/dummy-tx

[RFC] event: store the outpoint when is_manual_broadcast

2 months agoevent: store the outpoint when is_manual_broadcast
Vincenzo Palazzo [Tue, 27 Aug 2024 08:18:28 +0000 (10:18 +0200)]
event: store the outpoint when is_manual_broadcast

With [1], it's possible to specify `manual_broadcast` for
the channel funding transaction. When `is_manual_broadcast` is
set to true, the transaction in the `DiscardFunding` event is
replaced with a dummy empty transaction.

This commit checks if `is_manual_broadcast` is true and
stores the funding OutPoint in the DiscardFunding event instead.

[1] https://github.com/lightningdevkit/rust-lightning/pull/3024

Link: https://github.com/lightningdevkit/rust-lightning/issues/3164
Suggested-by: TheBlueMatt
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
2 months agoSplit `ConfirmationTarget::OnChainSweep` into urgent and non-urgent
Matt Corallo [Thu, 22 Aug 2024 19:15:34 +0000 (19:15 +0000)]
Split `ConfirmationTarget::OnChainSweep` into urgent and non-urgent

When we force-close a channel, occasionally its due to feerate
disagreements or other non-HTLC-related issues. In those cases,
there's no reason to use a very urgent feerate estimate - we don't
have any timers expiring soon.

Instead, we should give users the information they need to be more
economical on fees in this case, which we do here by splitting
`OnChainSweep` into `UrgentOnChainSweep` and
`NonUrgentOnChainSweep` `ConfirmationTarget`s.

2 months agoAdd a new `ConfirmationTarget::MaximumFeeEstimate`
Matt Corallo [Thu, 22 Aug 2024 15:25:56 +0000 (15:25 +0000)]
Add a new `ConfirmationTarget::MaximumFeeEstimate`

When we broke `ConfirmationTarget` out into task-specific names, we
left `MaxDustHTLCExposure::FeeRateMultiplier` as using the "when we
broadcast feerate" as we were mostly concerned about the dust
thresholds on outbound channels where we pick the fee and drive our
own funds to dust.

In 51bf78d604b28fe189171e1b976fe87cbb2614b7, that changed to
include transaction fees on both inbound and outbound channels in
our dust exposure amount, but we continued to use
`ConfirmationTarget::OnChainSweep` for the fee estimator threshold.

While the `MaxDustHTLCExposure::FeeRateMultiplier` value is quite
conservative and shouldn't lead to force-closures unless feerate
estimates disagree by something like 500 sat/vB (with only one HTLC
active in a channel), this happened on Aug 22 when feerates spiked
from 4 sat/vB to over 1000 sat/vB in one block.

To avoid simple feerate estimate horizons causing this in the
future, here we add a new
`ConfirmationTarget::MaximumFeeEstimate` which is used for dust
calculations. This allows users to split out the estimates they use
for checking counterparty feerates from the estimates used for
actual broadcasting.

2 months agoMerge pull request #3273 from TheBlueMatt/2024-08-bindings-no-static
Matt Corallo [Tue, 27 Aug 2024 14:14:47 +0000 (14:14 +0000)]
Merge pull request #3273 from TheBlueMatt/2024-08-bindings-no-static

Return owned `String`s for onion message message types

2 months agoMerge pull request #3248 from jkczyz/2024-08-blinded-path-utils-refactor
dunxen [Tue, 27 Aug 2024 11:28:43 +0000 (13:28 +0200)]
Merge pull request #3248 from jkczyz/2024-08-blinded-path-utils-refactor

Refactor `BlindedPath` construction utils

3 months agoReturn owned `String`s for onion message message types 2024-08-bindings-no-static
Matt Corallo [Mon, 26 Aug 2024 19:25:46 +0000 (19:25 +0000)]
Return owned `String`s for onion message message types

Returning a reference from a trait method is relatively difficult
to map in bindings and is currently handled by storing the object
in the trait instance, returning a reference to the local field.

This is fine when the object we're returning only needs to live as
long as the trait, but when it needs to be `'static` (as is the
case for onion message `msg_type`s), there's not really a good way
to map them at all.

Instead, here, condition on `#[cfg(c_bindings)]` we return a fully
owned `String`. This is obviously relatively less effecient, but
the extra allocation and `memcpy` isn't the end of the world,
especially given it should be released relatively quickly.

Note that this breaks doctests in with `c_bindings`.

3 months agoMerge pull request #3272 from TheBlueMatt/2024-08-bindings-hidden
Matt Corallo [Mon, 26 Aug 2024 23:44:14 +0000 (23:44 +0000)]
Merge pull request #3272 from TheBlueMatt/2024-08-bindings-hidden

Mark new `types` `#[doc(hidden)]` methods as bindings no-export

3 months agoMark `io::Cursor` as no-export in bindings 2024-08-bindings-hidden
Matt Corallo [Mon, 26 Aug 2024 18:32:28 +0000 (18:32 +0000)]
Mark `io::Cursor` as no-export in bindings

3 months agoMark new `types` `#[doc(hidden)]` methods as bindings no-export
Matt Corallo [Mon, 26 Aug 2024 18:28:07 +0000 (18:28 +0000)]
Mark new `types` `#[doc(hidden)]` methods as bindings no-export

3 months agoMerge pull request #3153 from alecchendev/2024-07-async-closing-signed
Matt Corallo [Mon, 26 Aug 2024 17:45:05 +0000 (17:45 +0000)]
Merge pull request #3153 from alecchendev/2024-07-async-closing-signed

Allow sending closing tx signatures asynchronously

3 months agoMerge pull request #2992 from G8XSU/monitor-update-seq-doc
Matt Corallo [Mon, 26 Aug 2024 14:09:02 +0000 (14:09 +0000)]
Merge pull request #2992 from G8XSU/monitor-update-seq-doc

Doc Clarity: Handling gaps in persisted ChannelMonitorUpdates.

3 months agoMerge pull request #3269 from TheBlueMatt/2024-08-this-should-work-bindings
Matt Corallo [Fri, 23 Aug 2024 22:53:24 +0000 (22:53 +0000)]
Merge pull request #3269 from TheBlueMatt/2024-08-this-should-work-bindings

Use the actual type, not the associated type, in trait impls

3 months agoTest async sign_closing_transaction
Alec Chen [Tue, 2 Jul 2024 06:08:04 +0000 (23:08 -0700)]
Test async sign_closing_transaction

3 months agoAllow sending closing tx signatures asynchronously
Alec Chen [Tue, 2 Jul 2024 06:07:45 +0000 (23:07 -0700)]
Allow sending closing tx signatures asynchronously

3 months agoUse the actual type, not the associated type, in trait impls 2024-08-this-should-work-bindings
Matt Corallo [Fri, 23 Aug 2024 15:33:22 +0000 (15:33 +0000)]
Use the actual type, not the associated type, in trait impls

This is equivalent and just easier for the bindings to deal with
(though, really, they should handle it).

3 months agoMerge pull request #3266 from optout21/bech32-tests
Matt Corallo [Fri, 23 Aug 2024 14:29:15 +0000 (14:29 +0000)]
Merge pull request #3266 from optout21/bech32-tests

Add invoice serialization tests [TestOnly][Minor]

3 months agoAdd invoice serialization tests
optout [Fri, 23 Aug 2024 13:46:22 +0000 (15:46 +0200)]
Add invoice serialization tests

3 months agoMerge pull request #3263 from TheBlueMatt/2024-08-bindings-om
Matt Corallo [Fri, 23 Aug 2024 03:04:19 +0000 (03:04 +0000)]
Merge pull request #3263 from TheBlueMatt/2024-08-bindings-om

Remove message type bound on `ResponseInstruction`

3 months agoAdd a `MessageSendInstructions::ForReply` 2024-08-bindings-om
Matt Corallo [Thu, 22 Aug 2024 01:31:07 +0000 (01:31 +0000)]
Add a `MessageSendInstructions::ForReply`

In order to allow onion message handlers to reply asynchronously
without introducing a circular dependency graph, the message
handlers need to be able to send replies described by
`MessageSendInstructions`. This allows them to send replies via the
normal message queuing (i.e. without making a function call to
`OnionMessenger`).

Here we enable that by adding a `MessageSendInstructions::ForReply`
variant which holds `ReplyInstruction`s.

Fixes #3178

3 months agoChange `send_onion_message` to take a `MessageSendInstructions`
Matt Corallo [Thu, 22 Aug 2024 01:47:37 +0000 (01:47 +0000)]
Change `send_onion_message` to take a `MessageSendInstructions`

This lets callers include a `reply_path` without doing the
path-finding at the callsite, utilizing the built-in path-finding
logic in `OnionMessenger`

3 months ago3/3 Use `MessageSendInstructions` instead of `PendingOnionMessage`
Matt Corallo [Wed, 21 Aug 2024 19:10:46 +0000 (19:10 +0000)]
3/3 Use `MessageSendInstructions` instead of `PendingOnionMessage`

Now that the `MessageRouter` can `create_blinded_paths` forcing
callers of the `OnionMessenger` to provide it with a reply path up
front is unnecessary complexity, doubly so in message handlers.

Here we take the next step towards untangling that, moving from
`PendingOnionMessage` to `MessageSendInstructions` for the outbound
message queue in `AsyncPaymentsMessageHandler`. Better, we can also
drop the `c_bindings`-specific message queue variant, unifying the
APIs.

Here we also drop `PendingOnionMessage` entirely.

3 months ago2/3 Use `MessageSendInstructions` instead of `PendingOnionMessage`
Matt Corallo [Thu, 22 Aug 2024 01:42:55 +0000 (01:42 +0000)]
2/3 Use `MessageSendInstructions` instead of `PendingOnionMessage`

Now that the `MessageRouter` can `create_blinded_paths` forcing
callers of the `OnionMessenger` to provide it with a reply path up
front is unnecessary complexity, doubly so in message handlers.

Here we take the next step towards untangling that, moving from
`PendingOnionMessage` to `MessageSendInstructions` for the outbound
message queue in `OffersMessageHandler`. Better, we can also drop
the `c_bindings`-specific message queue variant, unifying the APIs.

Because `ChannelManager` needs to actually control the reply path
set in individual messages, however, we have to halfway this patch,
adding a new `MessageSendInstructions` variant that allows
specifying the `reply_path` explicitly. Still, because other message
handlers are moving this way, its nice to be consistent.

3 months ago1/3 Use `MessageSendInstructions` instead of `PendingOnionMessage`
Matt Corallo [Thu, 22 Aug 2024 01:41:27 +0000 (01:41 +0000)]
1/3 Use `MessageSendInstructions` instead of `PendingOnionMessage`

Now that the `MessageRouter` can `create_blinded_paths` forcing
callers of the `OnionMessenger` to provide it with a reply path up
front is unnecessary complexity, doubly so in message handlers.

Here we take the first step towards untangling that, moving from
`PendingOnionMessage` to `MessageSendInstructions` for the outbound
message queue in `CustomMessageHandler`. Better, we can also drop
the `c_bindings`-specific message queue variant, unifying the APIs.

3 months agoGive `MessageSendInstructions` any `Destination`, not only Blinded
Matt Corallo [Thu, 22 Aug 2024 18:43:33 +0000 (18:43 +0000)]
Give `MessageSendInstructions` any `Destination`, not only Blinded

In the next commit we'll use `MessageSendInstructions` for all
messages, so it needs the ability to take any `Destination`, not
only a `Destination::Blinded`.

3 months agoMake `ResponseInstruction` `Clone`able
Matt Corallo [Wed, 21 Aug 2024 16:54:31 +0000 (16:54 +0000)]
Make `ResponseInstruction` `Clone`able

3 months agoPull the guts of `ResponseInstruction` into a new enum
Matt Corallo [Thu, 22 Aug 2024 01:35:18 +0000 (01:35 +0000)]
Pull the guts of `ResponseInstruction` into a new enum

In the coming commits we'll use the `ResponseInstruction` enum's
contents for all messages, allowing message senders to rely on the
in-`OnionMessegner` reply path selection logic.

In order to do so and avoid users confusing the new
`MessageSendInstructions` for `ResponseInstruction`, we leave
`ResponseInstruction` as a now-unconstructible struct which wraps a
`MessageSendInstructions`.

3 months agoRemove message type bound on `ResponseInstruction`
Matt Corallo [Wed, 21 Aug 2024 15:32:14 +0000 (15:32 +0000)]
Remove message type bound on `ResponseInstruction`

Our onion message handlers generally have one or more methods which
return a `ResponseInstruction` parameterized with the expected
message type (enum) of the message handler.

Sadly, that restriction is impossible to represent in our bindings -
our bindings concretize all LDK structs, enums, and traits into a
single concrete instance with generics set to our concrete trait
instances (which hold a jump table). This prevents us from having
multiple instances of `ResponseInstruction` structs for different
message types.

Our bindings do, however, support different parameterizations of
standard enums, including `Option`s and tuples.

In order to support bindings for the onion message handlers, we
are thus forced into std types bound by expected message types,
which we do here by making `ResponseInstruction` contain only the
instructions and generally using it as a two-tuple of
`(message, ResponseInstruction)`.

3 months agoMerge pull request #3193 from tnull/2024-07-2995-followups
Elias Rohrer [Thu, 22 Aug 2024 07:55:17 +0000 (09:55 +0200)]
Merge pull request #3193 from tnull/2024-07-2995-followups

#2995 followups

3 months agoMerge pull request #3265 from TheBlueMatt/2024-08-globally-unique-names
Matt Corallo [Wed, 21 Aug 2024 21:41:28 +0000 (21:41 +0000)]
Merge pull request #3265 from TheBlueMatt/2024-08-globally-unique-names

Disambiguate blinded path `ForwardNode`s between payment + message

3 months agoMerge pull request #3250 from TheBlueMatt/2024-08-feature-cleanup
Matt Corallo [Wed, 21 Aug 2024 20:51:21 +0000 (20:51 +0000)]
Merge pull request #3250 from TheBlueMatt/2024-08-feature-cleanup

3 months agoCorrect `ConnectionNeeded` docs
Elias Rohrer [Fri, 19 Jul 2024 09:21:17 +0000 (11:21 +0200)]
Correct `ConnectionNeeded` docs

3 months agoAvoid allocating `Vec` for a single result
Elias Rohrer [Fri, 19 Jul 2024 08:57:42 +0000 (10:57 +0200)]
Avoid allocating `Vec` for a single result

3 months agoFix permissive test
Elias Rohrer [Fri, 19 Jul 2024 08:33:05 +0000 (10:33 +0200)]
Fix permissive test

3 months agoMerge pull request #3260 from TheBlueMatt/2024-08-more-deref
Matt Corallo [Wed, 21 Aug 2024 19:55:44 +0000 (19:55 +0000)]
Merge pull request #3260 from TheBlueMatt/2024-08-more-deref

Bound `Persister`'s `WriteableScore` by `Deref`

3 months agoDisambiguate blinded path `ForwardNode`s between payment + message 2024-08-globally-unique-names
Matt Corallo [Wed, 21 Aug 2024 16:46:24 +0000 (16:46 +0000)]
Disambiguate blinded path `ForwardNode`s between payment + message

We currently have two structs with identical names in our public
API - `blinded_path::message::ForwardNode` and
`blinded_path::payment::ForwardNode`. This makes the API somewhat
awkward to use - users have to try (and fail) to import
`ForwardNode` twice only to then have to change their imports.

More importantly, however, this makes the API very hard to use in
some bindings languages where rename-imports or module imports
aren't available.

Thus, here, we rename both to give them context.

3 months agoRemove uneccessary `std` bounds on many tests 2024-08-feature-cleanup
Matt Corallo [Sat, 17 Aug 2024 21:23:16 +0000 (21:23 +0000)]
Remove uneccessary `std` bounds on many tests

We never actually build with `#![no_std]` in tests as Rust does
not support it. Thus, many tests have spurious `std` feature gates
when they run just fine without them. Here we remove those gates,
though note that tests that depend on behavior elsewhere in the
codebase which is `std`-gated obviously need to retain their
feature gates.

3 months agoReduce `feature = std` flags in `gossip.rs` somewhat
Matt Corallo [Sat, 17 Aug 2024 19:43:51 +0000 (19:43 +0000)]
Reduce `feature = std` flags in `gossip.rs` somewhat

Fewer feature flags makes for more readable code, so we opt for
that over very marginally more effecient code here.

3 months agoDrop `std::Error` impl for `PeerHandleError`
Matt Corallo [Sat, 17 Aug 2024 15:59:34 +0000 (15:59 +0000)]
Drop `std::Error` impl for `PeerHandleError`

Not sure why we ever really had this, no one really ever bounds
anything on `std::Error` and its kinda a dead type, so there's no
need for us to `impl` it for our types.

3 months agoSimplify `Instant` mocking in outbound payments
Matt Corallo [Fri, 16 Aug 2024 22:36:30 +0000 (22:36 +0000)]
Simplify `Instant` mocking in outbound payments

To handle `std` and `no-std` concepts of time in scoring, we'd
originally written a generic `Time` trait which we could use to
fetch the current time, observe real (not wall-clock) elapsed time,
and serialize the time.

Eventually, scoring stopped using this `Time` trait but outbound
payment retry expiry started using it instead to mock time in
tests.

Since scoring no longer uses the full features which required the
`Time` trait, we can substantially simplify by just having the
mocking option.

3 months agoRemove note about `std`/`no-std` scorer serialization compat
Matt Corallo [Fri, 16 Aug 2024 20:46:37 +0000 (20:46 +0000)]
Remove note about `std`/`no-std` scorer serialization compat

In 81389dee306d960a8030bec5ffa304004148ce85 we removed a note about
mixing the `std` and `no-std` feature when de/serializing
`ProbabilisticScorer`s but forgot to note that there was a second
copy of that note in the module documentation.

This removes that note.

3 months agoBound `Persister`'s `WriteableScore` by `Deref` 2024-08-more-deref
Matt Corallo [Tue, 20 Aug 2024 20:39:41 +0000 (20:39 +0000)]
Bound `Persister`'s `WriteableScore` by `Deref`

This makes the trait marginally more flexible, but more importantly
matches our normal structure which makes the bindings generator a
bit happier.

3 months agoRename `ChannelDetails::is_public` to `is_announced`
Elias Rohrer [Tue, 20 Aug 2024 11:47:51 +0000 (13:47 +0200)]
Rename `ChannelDetails::is_public` to `is_announced`

Referring to announced/unannounced channels as 'public'/'private'
regularly leads to confusion on what they are and when which should be
used. To avoid perpetuating this confusion, we should avoid referring to
announced channels as 'public' in our API.

Here we rename `ChannelDetails::is_public` (which breaks
previously-released API) to align it with the changes in
`OpenChannelRequest`.

3 months agoRename `OpenChannelRequest::is_public` to `is_announced`
Elias Rohrer [Tue, 20 Aug 2024 11:43:40 +0000 (13:43 +0200)]
Rename `OpenChannelRequest::is_public` to `is_announced`

Referring to announced/unannounced channels as 'public'/'private'
regularly leads to confusion on what they are and when which should be
used. To avoid perpetuating this confusion, we should avoid referring to
announced channels as 'public' in our API.

Here we rename the recently introduced field in `OpenChannelRequest`
(which doesn't break released API), and will align the pre-existing
instances of `is_public` in the following commit (which will break API).

3 months agoRename construct_keys_callback functions
Jeffrey Czyz [Fri, 16 Aug 2024 15:19:07 +0000 (10:19 -0500)]
Rename construct_keys_callback functions

3 months agoRequire Destination in construct_keys_callback
Jeffrey Czyz [Fri, 16 Aug 2024 15:12:24 +0000 (10:12 -0500)]
Require Destination in construct_keys_callback

3 months agoUse a single iterator to construct a BlindedPath
Jeffrey Czyz [Fri, 16 Aug 2024 02:37:03 +0000 (21:37 -0500)]
Use a single iterator to construct a BlindedPath

Instead of using separate iterators for pubkeys and TLVs, use an
iterator that yields a tuple of them. This allows for holding a mutable
reference to the TLVs such that they can be padded. With two iterators,
the pubkey iterator would have a reference to the ForwardNode slice when
constructing a payment path. However, this would prevent holding mutable
references in the TLVs iterator.

3 months agoGeneralize build_keys_helper
Jeffrey Czyz [Fri, 16 Aug 2024 01:05:33 +0000 (20:05 -0500)]
Generalize build_keys_helper

When constructing a blinded path, two iterators are used: one for the
pubkeys and another for Writeable TLVs. The first iterator is used in
the build_keys_helper utility function while the second is used inside
of a callback. Update this utility to work on any type that can be
borrowed as a PublicKey. This allows for using a single iterator of
tuples, which is necessary for padding the hops without additional
allocations and clones.

3 months agoAdd a construct_keys_callback for blinded paths
Jeffrey Czyz [Thu, 15 Aug 2024 23:06:46 +0000 (18:06 -0500)]
Add a construct_keys_callback for blinded paths

When constructing a BlindedPath, an Option<Destination> parameter to
construct_keys_callback is never passed. Make a separate utility
function that doesn't take this parameter. This allows for using the
build_keys_helper macro with a Iterator yielding items other than
PublicKey.

3 months agoUse PublicKey values in construct_keys_callback
Jeffrey Czyz [Thu, 15 Aug 2024 22:56:17 +0000 (17:56 -0500)]
Use PublicKey values in construct_keys_callback

Instead of accepting iterators yielding PublicKey by reference in
utils::construct_keys_callback, take iterators yielding values since
these implement Copy and need to be copied anyway. This will help avoid
a situation when padding where both a reference and mutable reference
are needed.

3 months agoRefactor helper macro from construct_keys_callback
Jeffrey Czyz [Thu, 15 Aug 2024 22:36:55 +0000 (17:36 -0500)]
Refactor helper macro from construct_keys_callback

When constructing a BlindedPath, utils::construct_blinded_hops uses two
iterators. However, this makes it difficult to pad blinded hops to equal
sizes without allocating a vector or cloning data. Refactor the
construct_keys_callback utility function so that is can be used with an
Iterator with different Item types. This allows using a single Iterator
of tuples while still supporting its use only with pubkeys.

3 months agoMerge pull request #3247 from dunxen/2024-08-deprecate-balancemsat
Matt Corallo [Tue, 20 Aug 2024 20:52:10 +0000 (20:52 +0000)]
Merge pull request #3247 from dunxen/2024-08-deprecate-balancemsat

Deprecate AvailableBalances::balance_msat

3 months agoMerge pull request #3258 from TheBlueMatt/2024-08-default-for-bindings
Matt Corallo [Tue, 20 Aug 2024 20:46:27 +0000 (20:46 +0000)]
Merge pull request #3258 from TheBlueMatt/2024-08-default-for-bindings

Consistently pass `DefaultRouter::new` `Default` scoring parameters

3 months agoDoc Clarity: Handling gaps in persisted ChannelMonitorUpdates
G8XSU [Tue, 20 Aug 2024 17:23:18 +0000 (10:23 -0700)]
Doc Clarity: Handling gaps in persisted ChannelMonitorUpdates

If there are any gaps in the persisted [`ChannelMonitorUpdate`]s,
implementer can safely ignore [`ChannelMonitorUpdate`]s after the gap and load without them.
Since, acc. to channel-manager, we have only made progress if all contiguos
ChannelMonitorUpdates have been persisted.

3 months agoTest ChannelDetails serialization to catch mutants
Duncan Dean [Tue, 20 Aug 2024 07:38:35 +0000 (09:38 +0200)]
Test ChannelDetails serialization to catch mutants

3 months agoMerge pull request #3254 from TheBlueMatt/2024-08-flaky-test
valentinewallace [Tue, 20 Aug 2024 15:13:25 +0000 (11:13 -0400)]
Merge pull request #3254 from TheBlueMatt/2024-08-flaky-test

Correct `peer_handler::test_process_events_multithreaded`

3 months agoDeprecate AvailableBalances::balance_msat
Duncan Dean [Fri, 16 Aug 2024 09:34:55 +0000 (11:34 +0200)]
Deprecate AvailableBalances::balance_msat

The ChannelMonitor::get_claimable_balances method provides a more
straightforward approach to the balance of a channel, which satisfies
most use cases. The computation of AvailableBalances::balance_msat is
complex and originally had a different purpose that is not applicable
anymore. We deprecate AvailableBalances::balance_msat now and will remove
it in a following release.

Co-authored-by: Willem Van Lint <noreply@wvanlint.dev>
3 months agoConsistently pass `DefaultRouter::new` `Default` scoring parameters 2024-08-default-for-bindings
Matt Corallo [Mon, 12 Aug 2024 18:29:59 +0000 (18:29 +0000)]
Consistently pass `DefaultRouter::new` `Default` scoring parameters

In 26c1639ab69d6780c97a118f09e42cb42304088a (and later in
50c55dcf32466e3ccf17acea50697fc664950deb and
fb693ecbf81be0146a81cc7fd95342c403eacaa9) we switched to using
`Default::default()` to initialize `()` for scoring parameters in
tests. One `()`s slipped back in recently, which we replace here.

3 months agoMerge pull request #3255 from TheBlueMatt/2024-08-124-beta v0.0.124-beta
Matt Corallo [Tue, 20 Aug 2024 13:26:35 +0000 (13:26 +0000)]
Merge pull request #3255 from TheBlueMatt/2024-08-124-beta

Bump version numbers to 0.0.124-beta/invoice 0.32-beta