rust-lightning
19 months agoMerge pull request #1712 from TheBlueMatt/2022-09-111 v0.0.111
Matt Corallo [Tue, 13 Sep 2022 00:27:54 +0000 (00:27 +0000)]
Merge pull request #1712 from TheBlueMatt/2022-09-111

Cut 0.0.111

19 months agoBump versions to lightning* 0.0.111 and lightning-invoice 0.19 2022-09-111
Matt Corallo [Mon, 12 Sep 2022 22:33:26 +0000 (22:33 +0000)]
Bump versions to lightning* 0.0.111 and lightning-invoice 0.19

19 months agoUpdate release notes for 0.0.111
Matt Corallo [Fri, 9 Sep 2022 18:39:15 +0000 (18:39 +0000)]
Update release notes for 0.0.111

19 months agoMerge pull request #1714 from TheBlueMatt/2022-09-111-bindings-discovered-cleanups
Matt Corallo [Mon, 12 Sep 2022 20:51:51 +0000 (20:51 +0000)]
Merge pull request #1714 from TheBlueMatt/2022-09-111-bindings-discovered-cleanups

Small Cleanups Discovered during Bindings for 0.0.111

19 months agoMerge pull request #1715 from TheBlueMatt/2022-09-fix-msg-send
Matt Corallo [Mon, 12 Sep 2022 20:01:32 +0000 (20:01 +0000)]
Merge pull request #1715 from TheBlueMatt/2022-09-fix-msg-send

Fix encryption of broadcasted gossip messages

19 months agoUpdate `Simple*PeerManager` type aliases to support Onion Messages 2022-09-111-bindings-discovered-cleanups
Matt Corallo [Mon, 12 Sep 2022 18:05:58 +0000 (18:05 +0000)]
Update `Simple*PeerManager` type aliases to support Onion Messages

Note that `SimpleArcPeerHandler` is also updated to not wrap
`IgnoringMessageHandler` in an `Arc`, as `IgnoringMessageHandler`
is already zero-sized.

19 months agoMerge pull request #1716 from TheBlueMatt/2022-09-log-unreadable-type
Matt Corallo [Mon, 12 Sep 2022 18:10:47 +0000 (18:10 +0000)]
Merge pull request #1716 from TheBlueMatt/2022-09-log-unreadable-type

Include the message type when we send unreadable gossip msg errors

19 months agoEncrypt+MAC most P2P messages in-place 2022-09-fix-msg-send
Matt Corallo [Mon, 12 Sep 2022 15:20:37 +0000 (15:20 +0000)]
Encrypt+MAC most P2P messages in-place

For non-gossip-broadcast messages, our current flow is to first
serialize the message into a `Vec`, and then allocate a new `Vec`
into which we write the encrypted+MAC'd message and header.

This is somewhat wasteful, and its rather simple to instead
allocate only one buffer and encrypt the message in-place.

19 months agoFix encryption of broadcasted gossip messages
Matt Corallo [Mon, 12 Sep 2022 15:16:41 +0000 (15:16 +0000)]
Fix encryption of broadcasted gossip messages

In 47e818f198abafba01b9ad278582886f9007dac2, forwarding broadcasted
gossip messages was split into a separate per-peer message buffer.
However, both it and the original regular-message queue are
encrypted immediately when the messages are enqueued. Because the
lightning P2P encryption algorithm is order-dependent, this causes
messages to fail their MAC checks as the messages from the two
queues may not be sent to peers in the order in which they were
encrypted.

The fix is to simply queue broadcast gossip messages unencrypted,
encrypting them when we add them to the regular outbound buffer.

19 months agoDrop unused type parameter on `BlindedRoute::new`
Matt Corallo [Sun, 11 Sep 2022 21:18:01 +0000 (21:18 +0000)]
Drop unused type parameter on `BlindedRoute::new`

I'm not sure why rustc didn't complain about the unused parameter
or why we're allowed to get away without explicitly bounding the
`Sign` in the `KeysInterface`, but the current code requires all
`BlindedPath` construction to explicitly turbofish an unused type.

19 months agoAdd relevant `(C-not exported)` tags on OnionMessenger aliases
Matt Corallo [Sun, 11 Sep 2022 21:12:16 +0000 (21:12 +0000)]
Add relevant `(C-not exported)` tags on OnionMessenger aliases

The "helpful" type aliases don't make sense for C bindings as all
generics are concretized anyway.

19 months agoInline generic bounds rather than using the `where` clause
Matt Corallo [Sat, 10 Sep 2022 20:31:52 +0000 (20:31 +0000)]
Inline generic bounds rather than using the `where` clause

The bindings generator is pretty naive in its generic resolution
and doesn't like `where` clauses for bounds that are simple traits.
This should eventually change, but for now its simplest to just
inline the relevant generic bounds.

19 months agoDo not use blanket impls when building for `c_bindings`
Matt Corallo [Sat, 10 Sep 2022 20:31:42 +0000 (20:31 +0000)]
Do not use blanket impls when building for `c_bindings`

The C bindings generator isn't capable of figuring out if a blanket
impl applies in a given context, and instead opts to always write
out any relevant impl's for a trait. Thus, blanket impls should be
disabled when building with `#[cfg(c_bindings)]`.

19 months agoRename `{Signed,}RawInvoice::hash` to avoid naming collisions
Matt Corallo [Sat, 10 Sep 2022 20:31:12 +0000 (20:31 +0000)]
Rename `{Signed,}RawInvoice::hash` to avoid naming collisions

Now that `{Signed,}RawInvoice` implement the std `Hash` trait,
having a method called `hash` is ambiguous.

Instead, we rename the `hash` methods `signed_hash` to make it
clear that the hash is the one used for the purpose of signing the
invoice.

19 months agoInclude the message type when we send unreadable gossip msg errors 2022-09-log-unreadable-type
Matt Corallo [Mon, 12 Sep 2022 15:35:56 +0000 (15:35 +0000)]
Include the message type when we send unreadable gossip msg errors

19 months agoMerge pull request #1710 from TheBlueMatt/2022-09-compile-warn
Matt Corallo [Sun, 11 Sep 2022 14:54:05 +0000 (14:54 +0000)]
Merge pull request #1710 from TheBlueMatt/2022-09-compile-warn

Fix several compile warnings added in some of my recent commits

19 months agoFix several compile warnings when testing in no-std mode 2022-09-compile-warn
Matt Corallo [Fri, 9 Sep 2022 19:41:58 +0000 (19:41 +0000)]
Fix several compile warnings when testing in no-std mode

19 months agoFix (really dumb) warning rustc introduced in latest beta
Matt Corallo [Fri, 9 Sep 2022 17:09:27 +0000 (17:09 +0000)]
Fix (really dumb) warning rustc introduced in latest beta

19 months agoFix several compile warnings added in some of my recent commits
Matt Corallo [Fri, 9 Sep 2022 16:01:54 +0000 (16:01 +0000)]
Fix several compile warnings added in some of my recent commits

19 months agoMerge pull request #1688 from valentinewallace/2022-08-flip-om-feature-bit
Matt Corallo [Fri, 9 Sep 2022 21:48:33 +0000 (21:48 +0000)]
Merge pull request #1688 from valentinewallace/2022-08-flip-om-feature-bit

Onion messages: flip feature bit ðŸŽ‰

19 months agoMerge pull request #1713 from TheBlueMatt/2022-09-bad-doc-versions
Matt Corallo [Fri, 9 Sep 2022 21:13:36 +0000 (21:13 +0000)]
Merge pull request #1713 from TheBlueMatt/2022-09-bad-doc-versions

Correct `get_claimable_balance` version info

19 months agoMerge pull request #1711 from TheBlueMatt/2022-08-0conf-panic
Matt Corallo [Fri, 9 Sep 2022 20:24:07 +0000 (20:24 +0000)]
Merge pull request #1711 from TheBlueMatt/2022-08-0conf-panic

Fix spurious panic on receipt of a block while awaiting funding

19 months agoUpdate ChannelMessageHandler::provided_node_features docs
Valentine Wallace [Fri, 9 Sep 2022 20:01:41 +0000 (16:01 -0400)]
Update ChannelMessageHandler::provided_node_features docs

To be uniform with the other handler provided_node_features docs

19 months agoDon't advertise onion messages in known channel features
Valentine Wallace [Fri, 9 Sep 2022 16:41:23 +0000 (12:41 -0400)]
Don't advertise onion messages in known channel features

19 months agoOR InitFeatures and NodeFeatures from onion message handler
Valentine Wallace [Fri, 9 Sep 2022 16:29:13 +0000 (12:29 -0400)]
OR InitFeatures and NodeFeatures from onion message handler

Similar to how we OR our InitFeaures and NodeFeatures across both our channel
and routing message handlers, we also want to OR the features of our onion
message handler.

19 months agoSupport forwarding onion messages in advertised features
Valentine Wallace [Fri, 26 Aug 2022 23:40:10 +0000 (19:40 -0400)]
Support forwarding onion messages in advertised features

In upcoming commit(s), onion message support will be advertised conditionally
based on the OnionMessageProvider provided to PeerManager.

19 months agoAdd missing wumbo feature bit docs
Valentine Wallace [Sat, 6 Aug 2022 22:23:30 +0000 (18:23 -0400)]
Add missing wumbo feature bit docs

19 months agoAdd a new NodeFeatures constructor to capture the types of flags
Valentine Wallace [Fri, 9 Sep 2022 16:17:33 +0000 (12:17 -0400)]
Add a new NodeFeatures constructor to capture the types of flags

When ChannelMessageHandler implementations wish to return a NodeFeatures which
contain all the known flags that are relevant to channel handling, but not
gossip  handling, they currently need to do so by manually constructing a
NodeFeatures with all known flags and then clearing the ones they don't want.

Instead of spreading this logic across the codebase, this consolidates such
construction into one place in features.rs.

19 months agoOR NodeFeatures from both Channel and Routing message handlers
Valentine Wallace [Fri, 9 Sep 2022 16:12:50 +0000 (12:12 -0400)]
OR NodeFeatures from both Channel and Routing message handlers

When we broadcast a node announcement, the features we support are really a
combination of all the various features our different handlers support. This
commit captures this concept by OR'ing our NodeFeatures across both our channel
and routing message handlers.

19 months agoCorrect `get_claimable_balance` version info 2022-09-bad-doc-versions
Matt Corallo [Fri, 9 Sep 2022 19:30:30 +0000 (19:30 +0000)]
Correct `get_claimable_balance` version info

5a8ede09fb3c8bbcd8694d94c12dac9ea7485537 updated the documentation
on `get_claimable_balance` to note that if a channel went on-chain
with an LDK version older than 0.0.108 some
counterparty-revoked-output claimable balances my be missing.
However, this failed to account for the fact that we rely on the
entirely-new-in-0.0.111
`confirmed_commitment_tx_counterparty_output` field for some
balances as well.

Thus, the comment should have been in terms of 0.0.111, not
0.0.108.

19 months agoMerge pull request #1709 from tnull/2022-09-make-access-error-debug
Matt Corallo [Fri, 9 Sep 2022 18:46:41 +0000 (18:46 +0000)]
Merge pull request #1709 from tnull/2022-09-make-access-error-debug

Derive `Debug` for `AccessError`

19 months agoFix spurious panic on receipt of a block while awaiting funding 2022-08-0conf-panic
Matt Corallo [Mon, 29 Aug 2022 18:42:34 +0000 (18:42 +0000)]
Fix spurious panic on receipt of a block while awaiting funding

When we receive a block we always test if we should send our
channel_ready via `check_get_channel_ready`. If the channel in
question requires confirmations, we quickly return if the funding
transaction has not yet confirmed (or even been defined), however
for 0conf channels the checks are necessarily more involved.

In any case, we wish to panic if the funding transaction has
confirmations prior to when it should have been broadcasted. This
is useful as it is easy for users to violate our broadcast-time
invariants without noticing and the panic gives us an opportunity
to catch it.

Sadly, in the case of 0conf channels, if we hadn't yet seen the
funding transaction at all but receive a block we would hit this
sanity check as we don't check whether there are actually funding
transaction confirmations prior to panicing.

19 months agoEnable all feature sets to OR with another set of the same type
Valentine Wallace [Fri, 9 Sep 2022 15:54:22 +0000 (11:54 -0400)]
Enable all feature sets to OR with another set of the same type

19 months agoMerge pull request #1701 from TheBlueMatt/2022-09-feature-or
Matt Corallo [Fri, 9 Sep 2022 16:47:25 +0000 (16:47 +0000)]
Merge pull request #1701 from TheBlueMatt/2022-09-feature-or

Fetch InitFeatures from both Channel and Routing Message Handlers

19 months agoMake clear_initial_routing_sync more consistent with other APIs 2022-09-feature-or
Matt Corallo [Wed, 7 Sep 2022 17:43:14 +0000 (17:43 +0000)]
Make clear_initial_routing_sync more consistent with other APIs

19 months agoAdd a new InitFeatures constructor to capture the types of flags
Matt Corallo [Wed, 7 Sep 2022 17:55:01 +0000 (17:55 +0000)]
Add a new InitFeatures constructor to capture the types of flags

When `ChannelMessageHandler` implementations wish to return an
`InitFeatures` which contain all the known flags that are relevant
to channel handling, but not gossip handling, they currently need
to do so by manually constructing an InitFeatures with all known
flags and then clearing the ones they dont want.

Instead of spreading this logic out across the codebase, this
consolidates such construction to one place in features.rs.

19 months agoOR InitFeatures from both Channel and Routing message handlers
Matt Corallo [Wed, 7 Sep 2022 17:35:50 +0000 (17:35 +0000)]
OR InitFeatures from both Channel and Routing message handlers

When we go to send an Init message to new peers, the features we
support are really a combination of all the various features our
different handlers support. This commit captures this concept by
OR'ing our InitFeatures across both our Channel and Routing
handlers.

Note that this also disables setting the `initial_routing_sync`
flag in init messages, as was intended in
e742894492c55802b241eebc585bbd28aa16481b, per the comment added on
`clear_initial_routing_sync`, though this should not be a behavior
change in practice as nodes which support gossip queries ignore the
initial routing sync flag.

19 months agoFetch our `InitFeatures` from `ChannelMessageHandler`
Matt Corallo [Wed, 7 Sep 2022 17:51:16 +0000 (17:51 +0000)]
Fetch our `InitFeatures` from `ChannelMessageHandler`

Like we now do for `NodeFeatures`, this converts to asking our
registered `ChannelMessageHandler` for our `InitFeatures` instead
of hard-coding them to the global LDK known set.

This allows handlers to set different feature bits based on what
our configuration actually supports rather than what LDK supports
in aggregate.

19 months agoDerive `Debug` for `AccessError`
Elias Rohrer [Fri, 9 Sep 2022 13:18:43 +0000 (15:18 +0200)]
Derive `Debug` for `AccessError`

19 months agoMerge pull request #1699 from TheBlueMatt/2022-08-announcement-rework
Matt Corallo [Fri, 9 Sep 2022 00:34:10 +0000 (00:34 +0000)]
Merge pull request #1699 from TheBlueMatt/2022-08-announcement-rework

19 months agoMerge pull request #1704 from TheBlueMatt/2022-09-always-probe-failed
Matt Corallo [Thu, 8 Sep 2022 20:35:15 +0000 (20:35 +0000)]
Merge pull request #1704 from TheBlueMatt/2022-09-always-probe-failed

Dont use PaymentPathFailed a probe fails without making it out

19 months agoAdd a folder to track CHANGELOG entries for the next release 2022-08-announcement-rework
Matt Corallo [Wed, 7 Sep 2022 00:01:12 +0000 (00:01 +0000)]
Add a folder to track CHANGELOG entries for the next release

19 months agoMove `broadcast_node_announcement` to `PeerManager`
Matt Corallo [Tue, 6 Sep 2022 22:34:29 +0000 (22:34 +0000)]
Move `broadcast_node_announcement` to `PeerManager`

Some `NodeFeatures` will, in the future, represent features which
are not enabled by the `ChannelManager`, but by other message
handlers handlers. Thus, it doesn't make sense to determine the
node feature bits in the `ChannelManager`.

The simplest fix for this is to change to generating the
node_announcement in `PeerManager`, asking all the connected
handlers which feature bits they support and simply OR'ing them
together. While this may not be sufficient in the future as it
doesn't consider feature bit dependencies, support for those could
be handled at the feature level in the future.

This commit moves the `broadcast_node_announcement` function to
`PeerHandler` but does not yet implement feature OR'ing.

19 months agoSend channel_{announcement,update} msgs on connection, not timer
Matt Corallo [Tue, 6 Sep 2022 21:30:33 +0000 (21:30 +0000)]
Send channel_{announcement,update} msgs on connection, not timer

When we connect to a new peer, immediately send them any
channel_announcement and channel_update messages for any public
channels we have with other peers. This allows us to stop sending
those messages on a timer when they have not changed and ensures
we are sending messages when we have peers connected, rather than
broadcasting at startup when we have no peers connected.

19 months agoImprove debuggability when tests fail due to excess events 2022-09-always-probe-failed
Matt Corallo [Wed, 7 Sep 2022 21:53:13 +0000 (21:53 +0000)]
Improve debuggability when tests fail due to excess events

19 months agoDont use PaymentPathFailed a probe fails without making it out
Matt Corallo [Wed, 7 Sep 2022 21:39:17 +0000 (21:39 +0000)]
Dont use PaymentPathFailed a probe fails without making it out

When we fail to forward a probe HTLC at all and immediately fail it
(e.g. due to the first hop channel closing) we'd previously
spuriously generate only a `PaymentPathFailed` event. This violates
the expected API, as users expect a `ProbeFailed` event instead.

This fixes the oversight by ensuring we generate the correct event.

Thanks to @jkczyz for pointing out this issue.

19 months agoDrop redundant code in `fail_holding_cell_htlcs`
Matt Corallo [Wed, 7 Sep 2022 21:09:50 +0000 (21:09 +0000)]
Drop redundant code in `fail_holding_cell_htlcs`

`fail_holding_cell_htlcs` calls through to
`fail_htlc_backwards_internal` for HTLCs that need to be
failed-backwards but opts to generate its own payment failure
events for `HTLCSource:;OutboundRoute` HTLCs. There is no reason
for that as `fail_htlc_backwards_internal` will also happily
generate (now-)equivalent events for `HTLCSource::OutboundRoute`
HTLCs.

Thus, we can drop the redundant code and always call
`fail_htlc_backwards_internal` for each HTLC in
`fail_holding_cell_htlcs`.

19 months agoMerge pull request #1702 from TheBlueMatt/2022-09-one-hop-retryable
Matt Corallo [Thu, 8 Sep 2022 17:34:04 +0000 (17:34 +0000)]
Merge pull request #1702 from TheBlueMatt/2022-09-one-hop-retryable

Mark failed one-hop HTLCs as retrably

19 months agoMerge pull request #1700 from TheBlueMatt/2022-09-missing-event-deser
Matt Corallo [Thu, 8 Sep 2022 15:41:58 +0000 (15:41 +0000)]
Merge pull request #1700 from TheBlueMatt/2022-09-missing-event-deser

Add missing deserialization of Event::HTLCHandlingFailed

19 months agoAdd missing deserialization of Event::HTLCHandlingFailed 2022-09-missing-event-deser
Matt Corallo [Tue, 6 Sep 2022 22:51:29 +0000 (22:51 +0000)]
Add missing deserialization of Event::HTLCHandlingFailed

17e6c374c513f2eca810fa4e931be65f0d4fc29f added the
`HTLCHandlingFailed` event, including serialization thereof,
however failed to add corresponding deserialization. This corrects
that oversight by adding said deserialization.

Thanks to @wpaulino for catching the oversight.

19 months agoRename `rejected_by_dest` -> `payment_failed_permanently` 2022-09-one-hop-retryable
Matt Corallo [Wed, 7 Sep 2022 20:58:05 +0000 (20:58 +0000)]
Rename `rejected_by_dest` -> `payment_failed_permanently`

The `rejected_by_dest` field of the `PaymentPathFailed` event has
always been a bit of a misnomer, as its really more about retry
than where a payment failed. Now is as good a time as any to
rename it.

19 months agoMark failed counterparty-is-destination HTLCs retryable
Matt Corallo [Wed, 7 Sep 2022 20:02:04 +0000 (20:02 +0000)]
Mark failed counterparty-is-destination HTLCs retryable

When our counterparty is the payment destination and we receive
an `HTLCFailReason::Reason` in `fail_htlc_backwards_internal` we
currently always set `rejected_by_dest` in the `PaymentPathFailed`
event, implying the HTLC should *not* be retried.

There are a number of cases where we use `HTLCFailReason::Reason`,
but most should reasonably be treated as retryable even if our
counterparty was the destination (i.e. `!rejected_by_dest`):
 * If an HTLC times out on-chain, this doesn't imply that the
   payment is no longer retryable, though the peer may well be
   offline so retrying may not be very useful,
 * If a commitment transaction "containing" a dust HTLC is
   confirmed on-chain, this definitely does not imply the payment
   is no longer retryable
 * If the channel we intended to relay over was closed (or
   force-closed) we should retry over another path,
 * If the channel we intended to relay over did not have enough
   capacity we should retry over another path,
 * If we received a update_fail_malformed_htlc message from our
   peer, we likely should *not* retry, however this should be
   exceedingly rare, and appears to nearly never appear in practice

Thus, this commit simply disables the behavior here, opting to
treat all `HTLCFailReason::Reason` errors as retryable.

Note that prior to 93e645daf46f85949ae0edf60d36bf21e9fde8af this
change would not have made sense as it would have resulted in us
retrying the payment over the same channel in some cases, however
we now "blame" our own channel and will avoid it when routing for
the same payment.

19 months agoMerge pull request #1697 from TheBlueMatt/2022-08-event-docs
valentinewallace [Wed, 7 Sep 2022 02:04:39 +0000 (22:04 -0400)]
Merge pull request #1697 from TheBlueMatt/2022-08-event-docs

Clarify and consolidate event handling requirements

19 months agoMerge pull request #1698 from TheBlueMatt/2022-09-release-names
valentinewallace [Wed, 7 Sep 2022 01:57:16 +0000 (21:57 -0400)]
Merge pull request #1698 from TheBlueMatt/2022-09-release-names

Add release names to CHANGELOG

19 months agoMerge pull request #1691 from TheBlueMatt/2022-08-dust-retry
valentinewallace [Wed, 7 Sep 2022 00:02:50 +0000 (20:02 -0400)]
Merge pull request #1691 from TheBlueMatt/2022-08-dust-retry

Correct payment resolution after on chain failure of dust HTLCs

19 months agoAdd release names to CHANGELOG 2022-09-release-names
Matt Corallo [Tue, 6 Sep 2022 21:17:15 +0000 (21:17 +0000)]
Add release names to CHANGELOG

There have been release names in Github for some time, though some
releases were missed. This adds them to CHANGELOG.

19 months agoClarify and consolidate event handling requirements 2022-08-event-docs
Matt Corallo [Tue, 6 Sep 2022 20:56:24 +0000 (20:56 +0000)]
Clarify and consolidate event handling requirements

We've seen a bit of user confusion about the requirements for event
handling, largely because the idempotency and consistency
requirements weren't super clearly phrased. While we're at it, we
also consolidate some documentation out of the event handling
function onto the trait itself.

Fixes #1675.

19 months agoCorrect payment resolution after on chain failure of dust HTLCs 2022-08-dust-retry
Matt Corallo [Fri, 2 Sep 2022 21:10:43 +0000 (21:10 +0000)]
Correct payment resolution after on chain failure of dust HTLCs

Previously, we wouldn't mark a dust HTLC as permanently resolved if
the commitment transaction went on chain. This resulted in us
always considering the HTLC as pending on restart, when we load the
pending payments set from the monitors.

Fixes #1653.

19 months agoMerge pull request #1657 from TheBlueMatt/2022-08-async-man-update
valentinewallace [Tue, 6 Sep 2022 20:06:06 +0000 (16:06 -0400)]
Merge pull request #1657 from TheBlueMatt/2022-08-async-man-update

Add a background processor which is async

19 months agoMerge pull request #1695 from TheBlueMatt/2022-08-log-chan_update
Matt Corallo [Tue, 6 Sep 2022 19:15:05 +0000 (19:15 +0000)]
Merge pull request #1695 from TheBlueMatt/2022-08-log-chan_update

Ensure we log private channel_updates at a non-GOSSIP log level

19 months agoEnsure we log private channel_updates at a non-GOSSIP log level 2022-08-log-chan_update
Matt Corallo [Mon, 5 Sep 2022 16:28:11 +0000 (16:28 +0000)]
Ensure we log private channel_updates at a non-GOSSIP log level

If we receive a channel_update for one of our private channels, we
will not log the message at the usual TRACE log level as the
message falls into the gossip range. However, for our own channels
they aren't *just* gossip, as we store that info and it changes
how we generate invoices. Thus, we add a log in `ChannelManager`
here at the DEBUG log level.

19 months agoAdd a background processing function that is async. 2022-08-async-man-update
Matt Corallo [Tue, 9 Aug 2022 06:01:10 +0000 (06:01 +0000)]
Add a background processing function that is async.

Adds a method which operates like BackgroundProcessor::start but
instead of functioning by spawning a background thread it is async.

19 months agoAdd a `Future` which can receive manager persistence events
Matt Corallo [Tue, 9 Aug 2022 04:15:21 +0000 (04:15 +0000)]
Add a `Future` which can receive manager persistence events

This allows users who don't wish to block a full thread to receive
persistence events.

The `Future` added here is really just a trivial list of callbacks,
but from that we can build a (somewhat ineffecient)
std::future::Future implementation and can (at least once a mapping
for Box<dyn Trait> is added) include the future in no-std bindings
as well.

Fixes #1595

19 months agoRemove internal references to `persistence` in waker.rs
Matt Corallo [Mon, 29 Aug 2022 21:13:58 +0000 (21:13 +0000)]
Remove internal references to `persistence` in waker.rs

19 months agoMerge pull request #1692 from TheBlueMatt/2022-08-time-goes-backwards
Matt Corallo [Sat, 3 Sep 2022 16:15:33 +0000 (16:15 +0000)]
Merge pull request #1692 from TheBlueMatt/2022-08-time-goes-backwards

Handle monotonic clock going backwards during runtime

19 months agoMerge pull request #1650 from valentinewallace/2022-08-take-onionmsgs-public
Matt Corallo [Fri, 2 Sep 2022 22:20:32 +0000 (22:20 +0000)]
Merge pull request #1650 from valentinewallace/2022-08-take-onionmsgs-public

19 months agoHandle monotonic clock going backwards during runtime 2022-08-time-goes-backwards
Matt Corallo [Fri, 2 Sep 2022 21:57:32 +0000 (21:57 +0000)]
Handle monotonic clock going backwards during runtime

We've had some users complain that `duration_since` is panic'ing
for them. This is possible if the machine being run on is buggy and
the "monotonic clock" goes backwards, which sadly some ancient
systems can do.

Rust addressed this issue in 1.60 by forcing
`Instant::duration_since` to not panic if the machine is buggy
(and time goes backwards), but for users on older rust versions we
do the same by hand here.

19 months agoMove open_zero_conf_channel utility to common test utils
Matt Corallo [Fri, 2 Sep 2022 21:02:13 +0000 (21:02 +0000)]
Move open_zero_conf_channel utility to common test utils

19 months agoLimit OnionMessenger outbound buffer size
Valentine Wallace [Thu, 1 Sep 2022 19:26:17 +0000 (15:26 -0400)]
Limit OnionMessenger outbound buffer size

Drop OMs if they push us over the max OnionMessenger outbound buffer size

19 months agoDon't construct OnionMessage while holding peer lock
Valentine Wallace [Fri, 2 Sep 2022 17:41:41 +0000 (13:41 -0400)]
Don't construct OnionMessage while holding peer lock

19 months agoRefuse to send and forward OMs to disconnected peers
Valentine Wallace [Thu, 4 Aug 2022 15:05:07 +0000 (11:05 -0400)]
Refuse to send and forward OMs to disconnected peers

We also refuse to connect to peers that don't advertise onion message
forwarding support.

19 months agoExpose onion message module as public
Valentine Wallace [Wed, 3 Aug 2022 15:42:54 +0000 (11:42 -0400)]
Expose onion message module as public

And fix warnings

19 months agoMerge pull request #1643 from jurvis/jurvis/2022-07-inflights-htlcs-across-payments
Jeffrey Czyz [Thu, 1 Sep 2022 20:01:30 +0000 (15:01 -0500)]
Merge pull request #1643 from jurvis/jurvis/2022-07-inflights-htlcs-across-payments

Track in-flight HTLCs across payments when routing

19 months agoMake payment tests more realistic
jurvis [Sun, 28 Aug 2022 06:07:50 +0000 (23:07 -0700)]
Make payment tests more realistic

Made sure that every hop has a unique receipient. When we simulate
calling `channel_penalty_msat` in `TestRouter`’s find route, use
actual previous node ids instead of just using the payer’s.

19 months agoKeep track of inflight HTLCs across payments
jurvis [Tue, 30 Aug 2022 05:50:44 +0000 (22:50 -0700)]
Keep track of inflight HTLCs across payments

Added two methods, `process_path_inflight_htlcs` and
`remove_path_inflight_htlcs`, that updates that `payment_cache` map with
path information that may have failed, succeeded, or have been given up
on.

Introduced `AccountForInflightHtlcs`, which will wrap our user-provided
scorer. We move the `S:Score` type parameterization from the `Router` to
`find_route`, so we can use our newly introduced
`AccountForInflightHtlcs`.

`AccountForInflightHtlcs` keeps track of a map of inflight HTLCs by
their short channel id, direction, and give us the value that is being
used up.

This map will in turn be populated prior to calling `find_route`, where
we’ll use `create_inflight_map`, to generate a current map of all
inflight HTLCs based on what was stored in `payment_cache`.

19 months agoMerge pull request #1687 from TheBlueMatt/2022-08-fuzz-msrv
Matt Corallo [Tue, 30 Aug 2022 17:12:47 +0000 (17:12 +0000)]
Merge pull request #1687 from TheBlueMatt/2022-08-fuzz-msrv

Drop honggfuzz `arbitrary` dependency to meet MSRV

19 months agoDrop honggfuzz `arbitrary` dependency to meet MSRV 2022-08-fuzz-msrv
Matt Corallo [Tue, 30 Aug 2022 04:03:47 +0000 (04:03 +0000)]
Drop honggfuzz `arbitrary` dependency to meet MSRV

20 months agoChange `payment_cache` to accept `PaymentInfo`
jurvis [Tue, 30 Aug 2022 05:49:24 +0000 (22:49 -0700)]
Change `payment_cache` to accept `PaymentInfo`

Introduces a new `PaymentInfo` struct that contains both the previous
`attempts` count that was tracked as well as the paths that are also
currently inflight.

20 months agoMerge pull request #1604 from valentinewallace/2022-07-OMs-followup
Jeffrey Czyz [Mon, 29 Aug 2022 17:17:36 +0000 (12:17 -0500)]
Merge pull request #1604 from valentinewallace/2022-07-OMs-followup

Onion messages: add some initial rate limiting

20 months agoImplement buffering onion messages for peers.
Valentine Wallace [Thu, 25 Aug 2022 18:30:29 +0000 (14:30 -0400)]
Implement buffering onion messages for peers.

In this commit, we check if a peer's outbound buffer has room for onion
messages, and if so pulls them from an implementer of a new trait,
OnionMessageProvider.

Makes sure channel messages are prioritized over OMs, and OMs are prioritized
over gossip.

The onion_message module remains private until further rate limiting is added.

20 months agoImplement OnionMessageProvider for OnionMessenger
Valentine Wallace [Mon, 22 Aug 2022 16:22:22 +0000 (12:22 -0400)]
Implement OnionMessageProvider for OnionMessenger

20 months agoPeerManager: bump the read pause limit
Valentine Wallace [Tue, 16 Aug 2022 18:33:10 +0000 (14:33 -0400)]
PeerManager: bump the read pause limit

...to make sure we can still get channel messages out after enqueuing some big gossip messages.

20 months agoAdd boilerplate for sending and receiving onion messages in PeerManager
Valentine Wallace [Sat, 6 Aug 2022 04:33:48 +0000 (00:33 -0400)]
Add boilerplate for sending and receiving onion messages in PeerManager

Adds the boilerplate needed for PeerManager and OnionMessenger to work
together, with some corresponding docs and misc updates mostly due to the
PeerManager public API changing.

20 months agoMerge pull request #1683 from valentinewallace/2022-08-multiqueue-peerman
Matt Corallo [Thu, 25 Aug 2022 21:30:15 +0000 (21:30 +0000)]
Merge pull request #1683 from valentinewallace/2022-08-multiqueue-peerman

20 months agoMerge pull request #1673 from TheBlueMatt/2022-08-may-learn-preimage-balance
Matt Corallo [Thu, 25 Aug 2022 20:26:30 +0000 (20:26 +0000)]
Merge pull request #1673 from TheBlueMatt/2022-08-may-learn-preimage-balance

Expose a `Balance` for inbound HTLCs even without a preimage

20 months agoSeparate gossip broadcasts into their own queue in PeerManager
Valentine Wallace [Wed, 24 Aug 2022 22:04:58 +0000 (18:04 -0400)]
Separate gossip broadcasts into their own queue in PeerManager

This allows us to better prioritize channel messages over gossip broadcasts and
lays groundwork for rate limiting onion messages more simply, since they won't
be competing with gossip broadcasts for space in the main message queue.

20 months agoPeerMan: rename drop_gossip util to be more accurate
Valentine Wallace [Thu, 25 Aug 2022 17:58:49 +0000 (13:58 -0400)]
PeerMan: rename drop_gossip util to be more accurate

It's more accurate to name it as dropping gossip broadcasts, as it won't drop
all gossip.

20 months agoPeerMan: fix bug in drop_gossip util
Valentine Wallace [Thu, 25 Aug 2022 17:56:19 +0000 (13:56 -0400)]
PeerMan: fix bug in drop_gossip util

Fixes a flipped bool that was introduced in
4a1ee5f9a984c9b0c0892025d624ade734337b1a

20 months agoRename MaybeClaimableHTLCAwaitingTimeout for consistency 2022-08-may-learn-preimage-balance
Matt Corallo [Wed, 24 Aug 2022 22:16:04 +0000 (22:16 +0000)]
Rename MaybeClaimableHTLCAwaitingTimeout for consistency

As we now have a MaybePreimageClaimableHTLC, its more consistent
to rename `MaybeClaimableHTLCAwaitingTimeout` to
`MaybeTimeoutClaimableHTLC`.

20 months agoExpose a `Balance` for inbound HTLCs even without a preimage
Matt Corallo [Wed, 17 Aug 2022 20:15:23 +0000 (20:15 +0000)]
Expose a `Balance` for inbound HTLCs even without a preimage

If we don't currently have the preimage for an inbound HTLC, that
does not guarantee we can never claim it, but instead only that we
cannot claim it unless we receive the preimage from the channel we
forwarded the channel out on.

Thus, we cannot consider a channel to have no claimable balances if
the only remaining output on the commitment ransaction is an
inbound HTLC for which we do not have the preimage, as we may be
able to claim it in the future.

This commit addresses this issue by adding a new `Balance` variant
- `MaybePreimageClaimableHTLCAwaitingTimeout`, which is generated
until the HTLC output is spent.

Fixes #1620

20 months agoMerge pull request #1682 from tnull/2022-08-export-all-log-levels
Matt Corallo [Wed, 24 Aug 2022 18:41:46 +0000 (18:41 +0000)]
Merge pull request #1682 from tnull/2022-08-export-all-log-levels

20 months agoMerge pull request #1652 from valentinewallace/2022-08-reply-paths
Jeffrey Czyz [Wed, 24 Aug 2022 14:55:20 +0000 (09:55 -0500)]
Merge pull request #1652 from valentinewallace/2022-08-reply-paths

Onion messages: support reply paths

20 months agoExport and document all `log` macros.
Elias Rohrer [Wed, 24 Aug 2022 11:59:58 +0000 (13:59 +0200)]
Export and document all `log` macros.

Previously, only `log_error` and `log_trace` macros have been exported.
This change exports the macros of all log levels, which enables them to
be used downstream.

20 months agoSupport sending and receiving reply paths
Valentine Wallace [Fri, 5 Aug 2022 22:03:12 +0000 (18:03 -0400)]
Support sending and receiving reply paths

20 months agoFix bug in onion message payload decode
Valentine Wallace [Fri, 5 Aug 2022 21:50:02 +0000 (17:50 -0400)]
Fix bug in onion message payload decode

Previously, we were decoding payload lengths as a VarInt. Per the spec, this is
wrong -- it should be decoded as a BigSize.  This bug also exists in our
payment payload decoding, to be fixed separately.

Upcoming reply path tests caught this bug because we hadn't encoded a payload
greater than 253 before, so we hadn't hit the problem that VarInts are encoded
as little-endian whereas BigSizes are encoded as big-endian.

20 months agoOM functional tests: update util to take nodes by reference
Valentine Wallace [Fri, 5 Aug 2022 21:45:43 +0000 (17:45 -0400)]
OM functional tests: update util to take nodes by reference

And fix one test to be uniform with the others

20 months agoMerge pull request #1679 from TheBlueMatt/2022-08-no-double-access
Arik [Tue, 23 Aug 2022 20:11:36 +0000 (13:11 -0700)]
Merge pull request #1679 from TheBlueMatt/2022-08-no-double-access

Avoid querying the chain for outputs for channels we already have

20 months agoAvoid querying the chain for outputs for channels we already have 2022-08-no-double-access
Matt Corallo [Sun, 21 Aug 2022 20:34:22 +0000 (20:34 +0000)]
Avoid querying the chain for outputs for channels we already have

If we receive a ChannelAnnouncement message but we already have the
channel, there's no reason to do a chain lookup. Instead of
immediately calling the user-provided `chain::Access` when handling
a ChannelAnnouncement, we first check if we have the corresponding
channel in the graph.

Note that if we do have the corresponding channel but it was not
previously checked against the blockchain, we should still check
with the `chain::Access` and update if necessary.

20 months agoMerge pull request #1681 from dunxen/2022-08-githubactionsfix
Jeffrey Czyz [Tue, 23 Aug 2022 14:22:48 +0000 (09:22 -0500)]
Merge pull request #1681 from dunxen/2022-08-githubactionsfix

Workaround GH Actions issue for 1.45

20 months agoWorkaround GH Actions issue for 1.45
Duncan Dean [Tue, 23 Aug 2022 07:20:35 +0000 (09:20 +0200)]
Workaround GH Actions issue for 1.45