rust-lightning
2 days agoLog available liquidity on each channel when starting routefinding 2024-03-log-outbound-channels
Matt Corallo [Tue, 12 Mar 2024 14:29:45 +0000 (14:29 +0000)]
Log available liquidity on each channel when starting routefinding

One of the most common first-steps in troubleshooting routefinding
issues is we ask for the local channel state to determine what the
available HTLC bounds are. While we log first-hop channel details
when we decline to use them, this doesn't tell us if we have
missing channels, and thus here we log all first-hop channels at
the start.

We also take this opportunity to log the limits that were violated
any time we log that we're not using a channel, rather than only
when its a first-hop.

4 days agoMerge pull request #3011 from jkczyz/2024-04-compact-blinded-path-creation
Matt Corallo [Wed, 29 May 2024 01:43:20 +0000 (18:43 -0700)]
Merge pull request #3011 from jkczyz/2024-04-compact-blinded-path-creation

Compact blinded path creation

4 days agoAdd missing copyright statement
Jeffrey Czyz [Thu, 23 May 2024 20:52:32 +0000 (15:52 -0500)]
Add missing copyright statement

4 days agoCompact introduction node test vector
Jeffrey Czyz [Mon, 22 Apr 2024 19:52:15 +0000 (14:52 -0500)]
Compact introduction node test vector

4 days agoCompact a BlindedPath's introduction node
Jeffrey Czyz [Wed, 10 Apr 2024 21:04:19 +0000 (16:04 -0500)]
Compact a BlindedPath's introduction node

Add a method to BlindedPath that given a network graph will compact the
IntroductionNode as the DirectedShortChannelId variant. Call this method
from DefaultMessageRouter so that Offer paths use the compact
representation (along with reply paths). This leaves payment paths in
Bolt12Invoice using the NodeId variant, as the compact representation
isn't as useful there.

4 days agoUnwrap reply_path in extract_invoice_request
Jeffrey Czyz [Wed, 10 Apr 2024 21:07:58 +0000 (16:07 -0500)]
Unwrap reply_path in extract_invoice_request

4 days agoPass ForwardNode when creating BlindedPath
Jeffrey Czyz [Thu, 9 May 2024 22:31:37 +0000 (17:31 -0500)]
Pass ForwardNode when creating BlindedPath

Instead of passing Vec<PublicKey> to MessageRouter::crate_blinded_path,
pass Vec<ForwardNode>. This way callers can include a short_channel_id
for a more compact BlindedPath encoding.

4 days agoSupport NextHop::ShortChannelId in BlindedPath
Jeffrey Czyz [Tue, 9 Apr 2024 21:14:29 +0000 (16:14 -0500)]
Support NextHop::ShortChannelId in BlindedPath

When sending an onion message to a blinded path, the short channel id
between hops isn't need in each hop's encrypted_payload since it is not
a payment. However, using the short channel id instead of the node id
gives a more compact representation. Update BlindedPath::new_for_message
to allow for this.

4 days agoMerge pull request #3006 from arik-so/arik/trampoline/2024-04-trampoline-onion-deseri...
valentinewallace [Tue, 28 May 2024 20:55:17 +0000 (16:55 -0400)]
Merge pull request #3006 from arik-so/arik/trampoline/2024-04-trampoline-onion-deserialization

Trampoline Onion Deserialization

4 days agoMerge pull request #3051 from TheBlueMatt/2024-04-2982-123-fix
Matt Corallo [Tue, 28 May 2024 17:47:23 +0000 (10:47 -0700)]
Merge pull request #3051 from TheBlueMatt/2024-04-2982-123-fix

Don't attempt to resume channels if we already exchanged funding

4 days agoDon't attempt to resume channels if we already exchanged funding 2024-04-2982-123-fix
Matt Corallo [Wed, 1 May 2024 14:32:47 +0000 (14:32 +0000)]
Don't attempt to resume channels if we already exchanged funding

ddf75afd16 introduced the ability to re-exchange our `ChannelOpen`
after a peer disconnects if we didn't complete funding on our end.
It did not implement nor consider what would happen if we
re-connected after we created our own funding transactions, and
currently it panics (and even if it did not it would replay the
`FundingTransactionGenerated` event to users).

While we'd very much like to replay the `open_channel` flow even
if we have already received an `accept_channel` and funded the
channel, we cannot as the peer will likely provide different key
material in their `accept_channel`, causing us to need a different
funding transaction.

Thus, here, we simply close channels which have been funded but not
yet signed when our peer disconnects.

9 days agoMerge pull request #3079 from jkczyz/2024-05-expects-quantity
Elias Rohrer [Thu, 23 May 2024 11:01:06 +0000 (13:01 +0200)]
Merge pull request #3079 from jkczyz/2024-05-expects-quantity

Add missing `Offer::expects_quantity` to tests

10 days agoAdd missing Offer::expects_quantity to tests
Jeffrey Czyz [Wed, 22 May 2024 19:20:43 +0000 (14:20 -0500)]
Add missing Offer::expects_quantity to tests

11 days agoMerge pull request #3038 from TheBlueMatt/2024-05-no-dir-with-on-side-offline
valentinewallace [Tue, 21 May 2024 15:05:30 +0000 (11:05 -0400)]
Merge pull request #3038 from TheBlueMatt/2024-05-no-dir-with-on-side-offline

Ignore partially-pruned channels during routing

11 days agoMerge pull request #3026 from valentinewallace/2024-04-limit-path-len
Matt Corallo [Tue, 21 May 2024 14:19:37 +0000 (07:19 -0700)]
Merge pull request #3026 from valentinewallace/2024-04-limit-path-len

Limit payment path length based on `payment_metadata`, custom TLVs, etc.

11 days agoMerge pull request #3073 from tnull/2024-05-bump-nits
Matt Corallo [Tue, 21 May 2024 13:08:35 +0000 (06:08 -0700)]
Merge pull request #3073 from tnull/2024-05-bump-nits

Fix minor nits in `BumpTransactionEventHandler`

11 days agoMerge pull request #3068 from toxeus/main
Elias Rohrer [Tue, 21 May 2024 10:18:53 +0000 (12:18 +0200)]
Merge pull request #3068 from toxeus/main

Re-export bitcoin crate

12 days agoTest Trampoline onion (de)serialization round trip.
Arik Sosman [Thu, 18 Apr 2024 06:16:11 +0000 (23:16 -0700)]
Test Trampoline onion (de)serialization round trip.

12 days agoMake Trampoline onion deserializable.
Arik Sosman [Thu, 18 Apr 2024 05:59:21 +0000 (22:59 -0700)]
Make Trampoline onion deserializable.

12 days agoAdd public util on RouteParameters for setting max path length.
Valentine Wallace [Mon, 13 May 2024 22:49:36 +0000 (15:49 -0700)]
Add public util on RouteParameters for setting max path length.

12 days agoTest routing payment parameters' max path length setting and usage.
Valentine Wallace [Wed, 24 Apr 2024 15:43:50 +0000 (11:43 -0400)]
Test routing payment parameters' max path length setting and usage.

12 days agooutbound_payment: set max path length in PaymentParameters.
Valentine Wallace [Mon, 15 Apr 2024 20:31:29 +0000 (16:31 -0400)]
outbound_payment: set max path length in PaymentParameters.

So the router knows how long the maximum payment path can be.

12 days agoTest utils: include payment_metadata in PassAlongPathArgs.
Valentine Wallace [Wed, 24 Apr 2024 15:14:47 +0000 (11:14 -0400)]
Test utils: include payment_metadata in PassAlongPathArgs.

12 days agoAbide by max path length param in router.
Valentine Wallace [Mon, 13 May 2024 19:03:30 +0000 (12:03 -0700)]
Abide by max path length param in router.

Also adds some testing by augmenting existing tests.

12 days agoAdd max path length knob to PaymentParameters.
Valentine Wallace [Fri, 10 Nov 2023 22:03:15 +0000 (17:03 -0500)]
Add max path length knob to PaymentParameters.

Will be used so the outbound_payment module can calculate the maximum path
length with knowledge of any custom TLVs or payment metadata present.

12 days agoMerge pull request #3069 from TheBlueMatt/2024-06-log-chan-count
Elias Rohrer [Mon, 20 May 2024 12:13:18 +0000 (14:13 +0200)]
Merge pull request #3069 from TheBlueMatt/2024-06-log-chan-count

Log how many nodes/channels we have synced when we try to route

13 days agoLog how many nodes/channels we have synced when we try to route 2024-06-log-chan-count
Matt Corallo [Sun, 19 May 2024 18:35:04 +0000 (18:35 +0000)]
Log how many nodes/channels we have synced when we try to route

A common issue in LN is not having fully synced the network graph
when we attempt to send a payment. This should be improved
substantially with gossip v1.5, but for now we should improve our
debugability by logging how many nodes we have in our graph when
we attempt to find a route.

2 weeks agoRe-export bitcoin crate
Filip Gospodinov [Fri, 17 May 2024 15:00:44 +0000 (17:00 +0200)]
Re-export bitcoin crate

For the same reason the `bitcoin` crate is re-exporting
the `secp256k1` crate the `lightning` crate should
re-export the `bitcoin` crate: to ease the burden on
calling code to maintain compatible `bitcoin` versions.

The `lightning` crate makes heavy use of types defined in
(or re-exported by) the `bitcoin` crate. Compilation will
fail if e.g. comparisons or `match` expressions are done with
types from `bitcoin` crate versions with a non-equal minor
version. This forces calling code to depend on a `bitcoin`
crate with a compatible version. This becomes a maintenance
nightmare once two or more crates, that use `bitcoin` types
in their public API, are used in calling code simultaneously.

2 weeks agoFix minor nits in `BumpTransactionEventHandler`
Elias Rohrer [Fri, 17 May 2024 07:04:30 +0000 (09:04 +0200)]
Fix minor nits in `BumpTransactionEventHandler`

2 weeks agoExtract onion_utils::build_onion_payloads_callback helper.
Valentine Wallace [Fri, 10 May 2024 21:31:51 +0000 (17:31 -0400)]
Extract onion_utils::build_onion_payloads_callback helper.

Will be useful when we want to calculate the total size of the payloads without
actually allocating for them.

2 weeks agoMerge pull request #3036 from TheBlueMatt/2024-05-filter-color
valentinewallace [Tue, 14 May 2024 23:23:30 +0000 (16:23 -0700)]
Merge pull request #3036 from TheBlueMatt/2024-05-filter-color

Provide more color in filter registration methods

2 weeks agoMake MAX_PATH_LENGTH_ESTIMATE const pub and expand doc comment.
Valentine Wallace [Fri, 10 Nov 2023 22:01:52 +0000 (17:01 -0500)]
Make MAX_PATH_LENGTH_ESTIMATE const pub and expand doc comment.

Will be used in the next commit when we make this configurable in
PaymentParameters.

2 weeks agoTestRouter: support checking only that route params are as expected.
Valentine Wallace [Wed, 24 Apr 2024 15:15:51 +0000 (11:15 -0400)]
TestRouter: support checking only that route params are as expected.

2 weeks agoRemove unnecessary RecipientOnionFields clone.
Valentine Wallace [Mon, 15 Apr 2024 18:30:01 +0000 (14:30 -0400)]
Remove unnecessary RecipientOnionFields clone.

Doable now that we take Vecs by reference in OutboundOnionPayload.

2 weeks agoOutboundOnionPayload: hold Vec fields as references.
Valentine Wallace [Mon, 15 Apr 2024 18:02:45 +0000 (14:02 -0400)]
OutboundOnionPayload: hold Vec fields as references.

Will be useful when we reuse this enum to calculate the maximum path length,
to avoid cloning the vecs.

2 weeks agoMerge pull request #3061 from TheBlueMatt/2024-05-bindings-upstream
valentinewallace [Tue, 14 May 2024 16:44:25 +0000 (09:44 -0700)]
Merge pull request #3061 from TheBlueMatt/2024-05-bindings-upstream

Minor bindings tweaks

2 weeks agoAllow any `Deref` to an `EntropySource` in `BlindedPath` building 2024-05-bindings-upstream
Matt Corallo [Mon, 13 May 2024 18:01:20 +0000 (18:01 +0000)]
Allow any `Deref` to an `EntropySource` in `BlindedPath` building

This matches our normal API semantics and allows, for example,
`Arc`s to `EntropySource`s.

2 weeks agoimpl `Clone` on various public (mostly BOLT12) types
Matt Corallo [Mon, 13 May 2024 14:36:01 +0000 (14:36 +0000)]
impl `Clone` on various public (mostly BOLT12) types

This is required for bindings as passing types from Rust to GC'd
languages can't map the concept of a type that has a lifetime of
the called function but instead needs to clone for safety.

2 weeks agoExpose `ChannelManager` offer constructors in bindings
Matt Corallo [Mon, 13 May 2024 14:35:34 +0000 (14:35 +0000)]
Expose `ChannelManager` offer constructors in bindings

2 weeks agoMark `io_extras` as no-bindings-export as its not for public use
Matt Corallo [Sun, 12 May 2024 00:26:19 +0000 (00:26 +0000)]
Mark `io_extras` as no-bindings-export as its not for public use

2 weeks agoMake `offers::Amount` `Copy` and export it in bindings
Matt Corallo [Sat, 11 May 2024 18:51:48 +0000 (18:51 +0000)]
Make `offers::Amount` `Copy` and export it in bindings

`Amount` is less than two pointers long, so there's no reason it
shouldn't be `Copy`. Further, because its an enum, bindings can't
map a reference to it in an `Option`. Thus, here, we simply make it
`Copy` and return it in `Option`s rather than a reference to it.

2 weeks agoUse prelude by universal import, rather than single import
Matt Corallo [Sat, 11 May 2024 15:55:36 +0000 (15:55 +0000)]
Use prelude by universal import, rather than single import

This avoids the bindings trying to figure out what a
`lightning::prelude::Vec` is rather than matching it as a `Vec`.

2 weeks agoExport `ChannelId` in bindings rather than `[u8; 32]`
Matt Corallo [Sat, 11 May 2024 16:16:12 +0000 (16:16 +0000)]
Export `ChannelId` in bindings rather than `[u8; 32]`

Now that `ChannelId` has useful constructors and methods we need
to start exposing it to bindings users rather than relying on using
`[u8; 32]`.

2 weeks agoSkip `BestBlock::new` in bindings as we already have one
Matt Corallo [Sat, 11 May 2024 16:10:56 +0000 (16:10 +0000)]
Skip `BestBlock::new` in bindings as we already have one

2 weeks agoMerge pull request #3058 from benthecarman/deref-empty-nod-id-lookup
Matt Corallo [Mon, 13 May 2024 13:09:31 +0000 (06:09 -0700)]
Merge pull request #3058 from benthecarman/deref-empty-nod-id-lookup

impl Deref for EmptyNodeIdLookUp

3 weeks agoMerge pull request #3059 from jkczyz/2024-05-drop-writeable-signer
Matt Corallo [Sat, 11 May 2024 12:57:28 +0000 (05:57 -0700)]
Merge pull request #3059 from jkczyz/2024-05-drop-writeable-signer

Remove `WriteableEcdsaChannelSigner` trait

3 weeks agoRemove WriteableEcdsaChannelSigner trait
Jeffrey Czyz [Fri, 10 May 2024 19:32:48 +0000 (14:32 -0500)]
Remove WriteableEcdsaChannelSigner trait

WriteableEcdsaChannelSigner is no longer needed now that
EcdsaChannelSigner isn't written in OnchainTxHandler.

3 weeks agoStop writing EcdsaChannelSigner
Jeffrey Czyz [Fri, 10 May 2024 18:58:41 +0000 (13:58 -0500)]
Stop writing EcdsaChannelSigner

EcdsaChannelSigner is no longer deserialized as of version 0.0.113 and
downgrades before version 0.0.113 are no longer supported as of version
0.0.119.

3 weeks agoMerge pull request #2930 from jbesraa/Add-PaymentHash-to-Record
Matt Corallo [Fri, 10 May 2024 16:55:55 +0000 (09:55 -0700)]
Merge pull request #2930 from jbesraa/Add-PaymentHash-to-Record

Add `PaymentHash` to `Record`

3 weeks agoMerge pull request #2973 from valentinewallace/2024-03-om-mailbox
Arik [Thu, 9 May 2024 22:27:49 +0000 (15:27 -0700)]
Merge pull request #2973 from valentinewallace/2024-03-om-mailbox

Support intercepting onion messages for offline peers

3 weeks agoimpl Deref for EmptyNodeIdLookUp
benthecarman [Thu, 9 May 2024 17:16:40 +0000 (12:16 -0500)]
impl Deref for EmptyNodeIdLookUp

3 weeks agoFill in top-level docs for onion message offline peer interception.
Valentine Wallace [Wed, 27 Mar 2024 15:52:10 +0000 (11:52 -0400)]
Fill in top-level docs for onion message offline peer interception.

3 weeks agoLimit OnionMessenger event buffer size.
Valentine Wallace [Wed, 27 Mar 2024 14:09:47 +0000 (10:09 -0400)]
Limit OnionMessenger event buffer size.

3 weeks agoManually implement Debug for onion message packets.
Valentine Wallace [Wed, 27 Mar 2024 15:06:33 +0000 (11:06 -0400)]
Manually implement Debug for onion message packets.

Previously we derived Debug, but that caused a lot of unreadable encrypted
bytes to be printed.

3 weeks agoTest offline peer onion message interception.
Valentine Wallace [Wed, 27 Mar 2024 15:05:21 +0000 (11:05 -0400)]
Test offline peer onion message interception.

3 weeks agoFix outdated comment in onion message functional test.
Valentine Wallace [Mon, 25 Mar 2024 17:23:00 +0000 (13:23 -0400)]
Fix outdated comment in onion message functional test.

3 weeks agoRefactor MessengerNode test util construction to take config.
Valentine Wallace [Mon, 25 Mar 2024 17:14:29 +0000 (13:14 -0400)]
Refactor MessengerNode test util construction to take config.

Will be used in the next commit when another config parameter is added.

3 weeks agoSupport forwarding prebuilt onion messages in OnionMessenger.
Valentine Wallace [Mon, 25 Mar 2024 15:42:13 +0000 (11:42 -0400)]
Support forwarding prebuilt onion messages in OnionMessenger.

3 weeks agoOnionMessenger: support generating peer connection events.
Valentine Wallace [Fri, 22 Mar 2024 19:58:33 +0000 (15:58 -0400)]
OnionMessenger: support generating peer connection events.

Useful if we are in the mode of interception OMs for offline peers, so
users know when to re-inject intercepted OMs.

3 weeks agoSupport generating events when an OM for an offline peer is received.
Valentine Wallace [Thu, 21 Mar 2024 17:56:54 +0000 (13:56 -0400)]
Support generating events when an OM for an offline peer is received.

Docs will be added in upcoming commits.

3 weeks agoMerge pull request #3041 from G8XSU/followup-2957
Matt Corallo [Thu, 9 May 2024 16:47:41 +0000 (09:47 -0700)]
Merge pull request #3041 from G8XSU/followup-2957

Followups to #2957

3 weeks agoIgnore partially-pruned channels during routing 2024-05-no-dir-with-on-side-offline
Matt Corallo [Mon, 6 May 2024 01:23:56 +0000 (01:23 +0000)]
Ignore partially-pruned channels during routing

If we prune one side of a channel's `ChannelUpdateInfo` that means
the node hasn't been online for two weeks (as they haven't
generated a new `channel_update` in that time). In such cases, even
if we haven't yet pruned the channel entirely, we should definitely
not be treating these channels as candidates for routing.

Note that this requires some additional `channel_update`s in the
router tests, but all of the new ones are added as disabled
channels.

Fixes #1824

3 weeks agoAdd `payment_hash` to `WithChannelMonitor`
jbesraa [Sun, 24 Mar 2024 05:07:09 +0000 (07:07 +0200)]
Add `payment_hash` to `WithChannelMonitor`

3 weeks agoAdd `PaymentHash` to `Record`
esraa [Tue, 12 Mar 2024 14:23:00 +0000 (14:23 +0000)]
Add `PaymentHash` to `Record`

    Adding the `payment_hash` to `Record` so we are able to track it
    in logs.

3 weeks agoMerge pull request #2907 from shaavan/issue2882
Jeffrey Czyz [Wed, 8 May 2024 22:32:41 +0000 (17:32 -0500)]
Merge pull request #2907 from shaavan/issue2882

Introduce ResponseInstructions for OnionMessage Handling

3 weeks agoMerge pull request #3012 from TheBlueMatt/2024-04-0.0.123-rl
Matt Corallo [Wed, 8 May 2024 20:35:52 +0000 (13:35 -0700)]
Merge pull request #3012 from TheBlueMatt/2024-04-0.0.123-rl

Add draft release notes for 0.0.123

3 weeks agoMerge pull request #3054 from TheBlueMatt/2024-04-fuzz-bolt11
Matt Corallo [Wed, 8 May 2024 20:24:31 +0000 (13:24 -0700)]
Merge pull request #3054 from TheBlueMatt/2024-04-fuzz-bolt11

Add fuzzing coverage for BOLT11 invoice deserialization

3 weeks agoBump `possiblyrandom` to 0.2 2024-04-0.0.123-rl
Matt Corallo [Fri, 19 Apr 2024 15:33:58 +0000 (15:33 +0000)]
Bump `possiblyrandom` to 0.2

I'd uploaded `possiblyrandom` 0.1 to reserve the crate name but
with a dummy library so now we need ot use 0.2 for the release.

3 weeks agoAdd changelog entries for 0.0.123
Matt Corallo [Fri, 19 Apr 2024 15:24:32 +0000 (15:24 +0000)]
Add changelog entries for 0.0.123

3 weeks agoUse consistent byte/char offsets when parsing invoice HRPs 2024-04-fuzz-bolt11
Matt Corallo [Tue, 30 Apr 2024 17:11:54 +0000 (17:11 +0000)]
Use consistent byte/char offsets when parsing invoice HRPs

When parsing lightning-invoice HRPs we want to read them
char-by-char, tracking at which offset different fields were. Prior
to this commit this was done first by reading char-by-char and then
by indexing using the byte offset which works for ASCII strings but
fails on multi-byte characters.

This commit fixes this issue by simply always walking byte-by-byte
and rejecting multi-byte characters which don't belong in HRPs.

3 weeks agoSubstantially increase coverage in BOLT11 deserialization fuzzer
Matt Corallo [Tue, 30 Apr 2024 14:31:57 +0000 (14:31 +0000)]
Substantially increase coverage in BOLT11 deserialization fuzzer

3 weeks agoMove existing BOLT11 fuzz test to the `fuzz` crate
Matt Corallo [Tue, 30 Apr 2024 13:58:21 +0000 (13:58 +0000)]
Move existing BOLT11 fuzz test to the `fuzz` crate

3 weeks agoMerge pull request #3046 from TheBlueMatt/2024-03-fees-are-dust
Matt Corallo [Wed, 8 May 2024 19:24:04 +0000 (12:24 -0700)]
Merge pull request #3046 from TheBlueMatt/2024-03-fees-are-dust

Fix the `full_stack_target` breakage test and doc feerate requests

3 weeks agoImplement ResponseInstruction Usage in OnionMessage Handling
shaavan [Thu, 18 Apr 2024 11:31:52 +0000 (17:01 +0530)]
Implement ResponseInstruction Usage in OnionMessage Handling

This commit integrates the newly introduced ResponseInstruction structs
and enums into the codebase for handling OnionMessage responses.

3 weeks agoFix the `full_stack_target` breakage test and doc feerate requests 2024-03-fees-are-dust
Matt Corallo [Tue, 7 May 2024 16:34:36 +0000 (16:34 +0000)]
Fix the `full_stack_target` breakage test and doc feerate requests

When we added the additional deust exposure checks in
702196819e6445048b803574fcacef77d5ce8c9c we added several
additional feerate fetches which broke the `full_stack_target`
change-detection test.

This updates the hard-coded test to support the new feerate fetches
and also includes a comment on `FeeEstimator` to indicate that
users really need to be caching feerates as otherwise they'll slow
us down.

3 weeks agoMerge pull request #3045 from TheBlueMatt/2024-03-fees-are-dust
Matt Corallo [Tue, 7 May 2024 15:50:46 +0000 (08:50 -0700)]
Merge pull request #3045 from TheBlueMatt/2024-03-fees-are-dust

Include excess counterparty commitment transaction fees in dust exposure

3 weeks agoAdd a simple test of the new excess-fees-are-dust behavior
Matt Corallo [Sun, 5 May 2024 02:00:42 +0000 (02:00 +0000)]
Add a simple test of the new excess-fees-are-dust behavior

3 weeks agoUpdate default dust exposure limit and the documentation thereof
Matt Corallo [Sun, 5 May 2024 00:44:07 +0000 (00:44 +0000)]
Update default dust exposure limit and the documentation thereof

Now that we're including excess counterparty commitment transaction
fees in our dust calculation, we need to update the docs
accordingly. We do so here, describing some of the considerations
and risks that come with the new changes.

We also take this opportunity to double the default value, as users
have regularly complained that non-anchor channels fail to send
HTLCs with the default settings with some feerates.

Fixes #2922

3 weeks agoInclude excess commitment transaction fees in dust exposure
Matt Corallo [Tue, 30 Apr 2024 20:42:36 +0000 (20:42 +0000)]
Include excess commitment transaction fees in dust exposure

Transaction fees on counterparty commitment transactions are
ultimately not our money and thus are really "dust" from our PoV -
they're funds that may be ours during off-chain updates but are not
ours once we go on-chain.

Thus, here, we count any such fees in excess of our own fee
estimates towards dust exposure. We don't bother to make an
inbound/outbound channel distinction here as in most cases users
will use `MaxDustExposure::FeeRateMultiplier` which will scale
with the fee we set on outbound channels anyway.

Note that this also enables the dust exposure checks on anchor
channels during feerate updates. We'd previously elided these as
increases in the channel feerates do not change the HTLC dust
exposure, but now do for the fee dust exposure.

3 weeks agoStop tracking chain_sync_monitor_persistences in TestPersister
Gursharan Singh [Mon, 6 May 2024 20:00:52 +0000 (13:00 -0700)]
Stop tracking chain_sync_monitor_persistences in TestPersister

3 weeks agoMake ChannelMonitor chain-sync log a trace log
Gursharan Singh [Mon, 6 May 2024 18:06:13 +0000 (11:06 -0700)]
Make ChannelMonitor chain-sync log a trace log

3 weeks agoMinor Doc fixes after #2957
Gursharan Singh [Mon, 6 May 2024 18:04:50 +0000 (11:04 -0700)]
Minor Doc fixes after #2957

3 weeks agoMerge pull request #3039 from valentinewallace/2024-04-invoice-amt-msats-overflow
Matt Corallo [Mon, 6 May 2024 19:20:37 +0000 (12:20 -0700)]
Merge pull request #3039 from valentinewallace/2024-04-invoice-amt-msats-overflow

Fix overflow in invoice amount setter.

3 weeks agoMerge pull request #2957 from G8XSU/pause-events
Matt Corallo [Mon, 6 May 2024 19:08:10 +0000 (12:08 -0700)]
Merge pull request #2957 from G8XSU/pause-events

Don't pause events for chainsync persistence

3 weeks agoFix overflow in invoice amount setter.
Valentine Wallace [Tue, 30 Apr 2024 17:01:03 +0000 (13:01 -0400)]
Fix overflow in invoice amount setter.

3 weeks agoProvide more color in filter registration methods 2024-05-filter-color
Matt Corallo [Sun, 5 May 2024 19:52:58 +0000 (19:52 +0000)]
Provide more color in filter registration methods

A few years ago we had repeated user confusion dealing with the
`Filter` methods and exactly how they differ. Here we try to add a
bit more color in several ways as suggested by users in a few
places - listing examples of why the methods are used as well as
ensuring its clearly communicated that not all parameters need be
used.

Fixes #1069

4 weeks agoMerge pull request #3035 from TheBlueMatt/2024-04-upstream-123-bindings
Matt Corallo [Sat, 4 May 2024 00:55:25 +0000 (17:55 -0700)]
Merge pull request #3035 from TheBlueMatt/2024-04-upstream-123-bindings

4 weeks agoKeep newlines between releases in CHANGELOG consistent
Matt Corallo [Tue, 9 Apr 2024 14:39:33 +0000 (14:39 +0000)]
Keep newlines between releases in CHANGELOG consistent

4 weeks agoAdd release note for 0.0.122 with just three PRs.
Matt Corallo [Mon, 8 Apr 2024 16:16:03 +0000 (16:16 +0000)]
Add release note for 0.0.122 with just three PRs.

4 weeks agoMerge pull request #3018 from jkczyz/2024-04-optional-description
Matt Corallo [Fri, 3 May 2024 19:55:17 +0000 (12:55 -0700)]
Merge pull request #3018 from jkczyz/2024-04-optional-description

Optional description for `Offer` and `Refund`

4 weeks agoMerge pull request #3029 from TheBlueMatt/2024-04-fix-batch-funding-failures
Matt Corallo [Fri, 3 May 2024 19:17:58 +0000 (12:17 -0700)]
Merge pull request #3029 from TheBlueMatt/2024-04-fix-batch-funding-failures

Add error handling for channels which fail to be created in `funding_transaction_generated_intern`

4 weeks agoIntroduce ResponseInstructions for OnionMessage Handling
shaavan [Mon, 25 Mar 2024 08:42:47 +0000 (14:12 +0530)]
Introduce ResponseInstructions for OnionMessage Handling

- Currently, handle_message (or handle_custom_message) only exposes
  the generated response for an OnionMessage, lacking the necessary
  reply_path for asynchronous responses.

- This commit introduces a new flow for OnionMessage handling.

- Instead of solely taking the message as input, handle_message now accepts
  an Optional `responder`, returning a `ResponseInstruction` containing both
  the response and the reply_path.

- `ResponseInstruction` utilizes different enum variants to indicate how
  `handle_onion_message_response` should handle the response.

- This enhancement enables exposing the reply_path alongside the response
  and allows for more complex response mechanisms, such as responding with
  an added reply_path.

- The commit introduces the foundational framework (structs & enums) for this new flow.

4 weeks agoOnly require description when offer has an amount
Jeffrey Czyz [Thu, 2 May 2024 16:43:04 +0000 (11:43 -0500)]
Only require description when offer has an amount

The spec was changed to allow excluding an offer description if the
offer doesn't have an amount. However, it is still required when the
amount is set.

4 weeks agoSwap `UserConfig::default()` for `test_default_channel_config`
Matt Corallo [Wed, 1 May 2024 21:56:04 +0000 (21:56 +0000)]
Swap `UserConfig::default()` for `test_default_channel_config`

As LDK changes, `UserConfig::default()` may imply marginally
different behavior, whereas `test_default_channel_config` is
intended to tweak defaults to provide a stable behavior for test
contexts.

This commit changes a few uses of `UserConfig::default()` to
`test_default_channel_config` in cases that will fail over the
coming commits due to dust changes.

4 weeks agoCorrect indentation in `get_pending_htlc_stats`
Matt Corallo [Wed, 27 Mar 2024 02:21:40 +0000 (02:21 +0000)]
Correct indentation in `get_pending_htlc_stats`

The previous commit left indentation in `get_pending_htlc_stats`
deliberately wrong, to ease reviewability. This commit fixes the
indentation.

4 weeks agoUnify `get_{inbound,outbound}_pending_htlc_stats`
Matt Corallo [Wed, 27 Mar 2024 02:14:50 +0000 (02:14 +0000)]
Unify `get_{inbound,outbound}_pending_htlc_stats`

In most cases we already call both in a pair, and in fact always
consolidate some of the returned values across both accessors, so
there's not much reason to have them be separate methods.

Here we merge them.

4 weeks agoMerge pull request #3033 from TheBlueMatt/2024-04-notify-bp-on-blocks
Matt Corallo [Wed, 1 May 2024 21:21:28 +0000 (14:21 -0700)]
Merge pull request #3033 from TheBlueMatt/2024-04-notify-bp-on-blocks

Wake `background-processor` from `ChainMonitor` on new blocks

4 weeks agoWake `background-processor` from `ChainMonitor` on new blocks 2024-04-notify-bp-on-blocks
Matt Corallo [Tue, 30 Apr 2024 21:30:26 +0000 (21:30 +0000)]
Wake `background-processor` from `ChainMonitor` on new blocks

When we receive a new block we may generate
`Event::SpendableOutputs` in `ChannelMonitor`s which then need to
be processed by the background processor. While it will do so
eventually when its normal loop goes around, this may cause user
tests to be delayed in finding events, so we should notify the BP
immediately to wake it on new blocks.

We implement that here, unconditionally notifying the
`background-processor` whenever we receive a new block or confirmed
transactions.

4 weeks agoUpdate documentation on `[u8; 32]` wrappers for clarity 2024-04-upstream-123-bindings
Matt Corallo [Wed, 1 May 2024 16:04:13 +0000 (16:04 +0000)]
Update documentation on `[u8; 32]` wrappers for clarity

4 weeks agoMove `[u8; 32]` wrapper types to a common module
Matt Corallo [Wed, 1 May 2024 15:49:59 +0000 (15:49 +0000)]
Move `[u8; 32]` wrapper types to a common module

The `PaymentHash`, `PaymentSecret`, `PaymentPreimage`, and
`ChannelId` types are all small wrappers around `[u8; 32]` and are
used throughout the codebase but were defined in the top-level
`ln/mod.rs` file and the relatively sparsely-populated
`ln/channel_id.rs` file.

Here we move them to a common `types` module and go ahead and
update all our in-crate `use` statements to refer to the new
module for bindings. We do, however, leave a `pub use` alias for
the old paths to avoid upgrade hassle for users.