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2 years agoMerge pull request #1511 from justinmoon/repository
Jeffrey Czyz [Wed, 1 Jun 2022 20:52:20 +0000 (15:52 -0500)]
Merge pull request #1511 from justinmoon/repository

Add 'repository' to lightning-invoice's Cargo.toml

2 years agoAdd 'repository' to lightning-invoice's Cargo.toml
Justin Moon [Wed, 1 Jun 2022 18:17:16 +0000 (13:17 -0500)]
Add 'repository' to lightning-invoice's Cargo.toml

2 years agoMerge pull request #1500 from arik-so/2022-05-network-graph-rapid-sync-timestamp
Arik Sosman [Tue, 31 May 2022 18:57:18 +0000 (11:57 -0700)]
Merge pull request #1500 from arik-so/2022-05-network-graph-rapid-sync-timestamp

Add optional last_rapid_gossip_sync_timestamp field to NetworkGraph to enable optimized differential rapid syncing.

2 years agoMerge pull request #1506 from tnull/2022-05-rename-funding-locked
Matt Corallo [Tue, 31 May 2022 17:48:09 +0000 (10:48 -0700)]
Merge pull request #1506 from tnull/2022-05-rename-funding-locked

Rename `FundingLocked` to `ChannelReady`.

2 years agoAdd optional last_rapid_gossip_sync_timestamp field to NetworkGraph to enable optimiz...
Arik Sosman [Fri, 27 May 2022 00:58:57 +0000 (17:58 -0700)]
Add optional last_rapid_gossip_sync_timestamp field to NetworkGraph to enable optimized differental rapid syncing.

2 years agoRename `FundingLocked` to `ChannelReady`.
Elias Rohrer [Mon, 30 May 2022 21:39:04 +0000 (14:39 -0700)]
Rename `FundingLocked` to `ChannelReady`.

2 years agoMerge pull request #1434 from TheBlueMatt/2022-04-robust-payment-claims
valentinewallace [Mon, 30 May 2022 17:05:01 +0000 (10:05 -0700)]
Merge pull request #1434 from TheBlueMatt/2022-04-robust-payment-claims

Improve Robustness of Inbound MPP Claims Across Restart

2 years agoChange `Event` `amt` fields to `amount_msat` for clarity 2022-04-robust-payment-claims
Matt Corallo [Sat, 28 May 2022 00:27:14 +0000 (00:27 +0000)]
Change `Event` `amt` fields to `amount_msat` for clarity

2 years agoAdd internal docs for ChannelMonitor::payment_preimages
Matt Corallo [Fri, 22 Apr 2022 17:58:19 +0000 (17:58 +0000)]
Add internal docs for ChannelMonitor::payment_preimages

2 years agoDrop return value from `fail_htlc_backwards`, clarify docs
Matt Corallo [Tue, 19 Apr 2022 22:06:50 +0000 (22:06 +0000)]
Drop return value from `fail_htlc_backwards`, clarify docs

`ChannelManager::fail_htlc_backwards`' bool return value is quite
confusing - just because it returns false doesn't mean the payment
wasn't (already) failed. Worse, in some race cases around shutdown
where a payment was claimed before an unclean shutdown and then
retried on startup, `fail_htlc_backwards` could return true even
though (a duplicate copy of the same payment) was claimed, but the
claim event has not been seen by the user yet.

While its possible to use it correctly, its somewhat confusing to
have a return value at all, and definitely lends itself to misuse.

Instead, we should push users towards a model where they don't care
if `fail_htlc_backwards` succeeds - either they've locally marked
the payment as failed (prior to seeing any `PaymentReceived`
events) and will fail any attempts to pay it, or they have not and
the payment is still receivable until its timeout time is reached.

We can revisit this decision based on user feedback, but will need
to very carefully document the potential failure modes here if we
do.

2 years agoDo additional pre-flight checks before claiming a payment
Matt Corallo [Tue, 19 Apr 2022 21:46:44 +0000 (21:46 +0000)]
Do additional pre-flight checks before claiming a payment

As additional sanity checks, before claiming a payment, we check
that we have the full amount available in `claimable_htlcs` that
the payment should be for. Concretely, this prevents one
somewhat-absurd edge case where a user may receive an MPP payment,
wait many *blocks* before claiming it, allowing us to fail the
pending HTLCs and the sender to retry some subset of the payment
before we go to claim. More generally, this is just good
belt-and-suspenders against any edge cases we may have missed.

2 years agoProvide a redundant `Event::PaymentClaimed` on restart if needed
Matt Corallo [Wed, 4 May 2022 18:12:09 +0000 (18:12 +0000)]
Provide a redundant `Event::PaymentClaimed` on restart if needed

If we crashed during a payment claim and then detected a partial
claim on restart, we should ensure the user is aware that the
payment has been claimed. We do so here by using the new
partial-claim detection logic to create a `PaymentClaimed` event.

2 years agoAdd a `PaymentClaimed` event to indicate a payment was claimed
Matt Corallo [Mon, 18 Apr 2022 20:12:15 +0000 (20:12 +0000)]
Add a `PaymentClaimed` event to indicate a payment was claimed

This replaces the return value of `claim_funds` with an event. It
does not yet change behavior in any material way.

2 years agoMerge pull request #1401 from TheBlueMatt/2022-02-0conf-round-two
Matt Corallo [Fri, 27 May 2022 23:54:52 +0000 (16:54 -0700)]
Merge pull request #1401 from TheBlueMatt/2022-02-0conf-round-two

Zero Conf Channels

2 years agoAdd note about SCID collisions in `PaymentPathFailed` 2022-02-0conf-round-two
Matt Corallo [Wed, 4 May 2022 02:34:10 +0000 (02:34 +0000)]
Add note about SCID collisions in `PaymentPathFailed`

This isn't specific to 0-conf but is useful for users to note as
the network moves towards more SCID aliases.

2 years agoAdd test of 0conf channels getting the funding transaction reorg'd
Matt Corallo [Mon, 2 May 2022 15:23:52 +0000 (15:23 +0000)]
Add test of 0conf channels getting the funding transaction reorg'd

In a previous version of the 0-conf code we did not correctly
handle 0-conf channels getting the funding transaction reorg'd out
(and the real SCID possibly changing on us).

2 years agoCorrectly handle sending announcement sigs on public 0conf channels
Matt Corallo [Fri, 1 Apr 2022 21:29:59 +0000 (21:29 +0000)]
Correctly handle sending announcement sigs on public 0conf channels

2 years agoAdd a new test for 0conf-with-monitor-update-failures
Matt Corallo [Fri, 1 Apr 2022 01:34:38 +0000 (01:34 +0000)]
Add a new test for 0conf-with-monitor-update-failures

This tests a few cases of monitor failure updates that were broken
in earlier versions of the 0conf patchset.

2 years agoExpose outbound SCID alias in `ChannelDetails` and use in routing
Matt Corallo [Fri, 1 Apr 2022 01:36:38 +0000 (01:36 +0000)]
Expose outbound SCID alias in `ChannelDetails` and use in routing

This supports routing outbound over 0-conf channels by utilizing
the outbound SCID alias that we assign to all channels to refer to
the selected channel when routing.

2 years agoSend funding_locked immediately for inbound channels with 0conf
Matt Corallo [Thu, 10 Feb 2022 00:09:42 +0000 (00:09 +0000)]
Send funding_locked immediately for inbound channels with 0conf

2 years agoAdd API and signaling to accept incoming channels at 0conf
Matt Corallo [Wed, 2 Feb 2022 23:01:05 +0000 (23:01 +0000)]
Add API and signaling to accept incoming channels at 0conf

2 years agoLock outbound channels at 0conf if the peer indicates support for it
Matt Corallo [Tue, 1 Feb 2022 21:57:01 +0000 (21:57 +0000)]
Lock outbound channels at 0conf if the peer indicates support for it

If our peer sets a minimum depth of 0, and we're set to trusting
ourselves to not double-spend our own funding transactions, send a
funding_locked message immediately after funding signed.

Note that some special care has to be taken around the
`channel_state` values - `ChannelFunded` no longer implies the
funding transaction is confirmed on-chain. Thus, for example, the
should-we-re-broadcast logic has to now accept `channel_state`
values greater than `ChannelFunded` as indicating we may still need
to re-broadcast our funding tranasction, unless `minimum_depth` is
greater than 0.

Further note that this starts writing `Channel` objects with a
`MIN_SERIALIZATION_VERSION` of 2. Thus, LDK versions prior to
0.0.99 (July 2021) will now refuse to read serialized
Channels/ChannelManagers.

2 years agoDefine a crate-public constant for max fake SCID in blocks offset
Matt Corallo [Fri, 13 May 2022 18:30:12 +0000 (18:30 +0000)]
Define a crate-public constant for max fake SCID in blocks offset

2 years agoHandle cases where a channel is in use w/o an SCID in ChannelManager
Matt Corallo [Fri, 4 Mar 2022 21:24:39 +0000 (21:24 +0000)]
Handle cases where a channel is in use w/o an SCID in ChannelManager

In the next few commits we add support for 0conf channels, allowing
us to have an active channel with HTLC and other updates flying
prior to having an SCID available. This would break several
assumptions made in `ChannelManager`, which we address here by
looking at SCID aliases in addition to SCIDs.

2 years agoMerge pull request #1481 from TheBlueMatt/2022-05-new-chain-tests
valentinewallace [Fri, 27 May 2022 17:38:42 +0000 (10:38 -0700)]
Merge pull request #1481 from TheBlueMatt/2022-05-new-chain-tests

Test coverage for `transaction_unconfirmed`

2 years agoMerge pull request #1499 from tnull/2022-05-fix-unreachable-warning
Matt Corallo [Fri, 27 May 2022 04:51:46 +0000 (21:51 -0700)]
Merge pull request #1499 from tnull/2022-05-fix-unreachable-warning

Fix `rapid-gossip-sync` warning and version number

2 years agoMerge pull request #1491 from tnull/2022-05-build-route-from-pubkeys
Matt Corallo [Fri, 27 May 2022 02:05:52 +0000 (19:05 -0700)]
Merge pull request #1491 from tnull/2022-05-build-route-from-pubkeys

Build route from hop pubkey list.

2 years agoFix `rapid-gossip-sync` warning and version number
Elias Rohrer [Fri, 27 May 2022 00:48:29 +0000 (17:48 -0700)]
Fix `rapid-gossip-sync` warning and version number

2 years agoAllow building of a route from given hops
Elias Rohrer [Wed, 25 May 2022 23:44:22 +0000 (16:44 -0700)]
Allow building of a route from given hops

Implements `build_route_from_hops`, which provides a simple way to build
a route from us (payer) to the target node (payee) via the given hops
(which should exclude the payer, but include the payee). This may be
useful, e.g., for probing the chosen path.

2 years agoMerge pull request #1494 from TheBlueMatt/2022-05-mon-cleanups-renames
Matt Corallo [Thu, 26 May 2022 18:11:08 +0000 (11:11 -0700)]
Merge pull request #1494 from TheBlueMatt/2022-05-mon-cleanups-renames

Correct variable names in `ChannelMonitor` and DRY tests

2 years agoEnsure all HTLCs for a claimed payment are claimed on startup
Matt Corallo [Mon, 18 Apr 2022 15:42:11 +0000 (15:42 +0000)]
Ensure all HTLCs for a claimed payment are claimed on startup

While the HTLC-claim process happens across all MPP parts under one
lock, this doesn't imply that they are claimed fully atomically on
disk. Ultimately, an application can crash after persisting one
`ChannelMonitorUpdate` out of multiple monitor updates needed for
the full claim.

Previously, this would leave us in a very bad state - because of
the all-channels-available check in `claim_funds` we'd refuse to
claim the payment again on restart (even though the
`PaymentReceived` event will be passed to the user again), and we'd
end up having partially claimed the payment!

The fix for the consistency part of this issue is pretty
straightforward - just check for this condition on startup and
complete the claim across all channels/`ChannelMonitor`s if we
detect it.

This still leaves us in a confused state from the perspective of
the user, however - we've actually claimed a payment but when they
call `claim_funds` we return `false` indicating it could not be
claimed.

2 years agoCorrect bogus references to `revocation_point` in `ChannelMonitor` 2022-05-mon-cleanups-renames
Matt Corallo [Tue, 24 May 2022 22:02:15 +0000 (22:02 +0000)]
Correct bogus references to `revocation_point` in `ChannelMonitor`

The `ChannelMonitor` had a field for the counterparty's
`cur_revocation_points`. Somewhat confusingly, this actually stored
the counterparty's *per-commitment* points, not the (derived)
revocation points.

Here we correct this by simply renaming the references as
appropriate. Note the update in `channel.rs` makes the variable
names align correctly.

2 years agoRename HTLC `onchain_value_satoshis` to `htlc_value_satoshis`
Matt Corallo [Thu, 19 May 2022 00:56:16 +0000 (00:56 +0000)]
Rename HTLC `onchain_value_satoshis` to `htlc_value_satoshis`

In `HTLCUpdate` and `OnchainEvent` tracking, we store the HTLC
value (rounded down to whole satoshis). This is somewhat
confusingly referred to as the `onchain_value_satoshis` even though
it refers to the commitment transaction output value, not the value
available on chain (which may have been reduced by an
HTLC-Timeout/HTLC-Success transaction).

2 years agoDRY SpendableOutput tests in `monitor_tests.rs`
Matt Corallo [Fri, 20 May 2022 01:42:06 +0000 (01:42 +0000)]
DRY SpendableOutput tests in `monitor_tests.rs`

2 years agoMerge pull request #1155 from arik-so/graph_sync_crate
Jeffrey Czyz [Wed, 25 May 2022 21:40:00 +0000 (16:40 -0500)]
Merge pull request #1155 from arik-so/graph_sync_crate

Introduce graph sync crate

2 years agoMerge pull request #1478 from mattfaltyn/issue1462
Jeffrey Czyz [Wed, 25 May 2022 21:26:51 +0000 (16:26 -0500)]
Merge pull request #1478 from mattfaltyn/issue1462

Document `lightning` crate features

2 years agoIntroduce graph sync crate for fast-forwarding through gossip data downloaded from...
Arik Sosman [Wed, 3 Nov 2021 17:50:08 +0000 (10:50 -0700)]
Introduce graph sync crate for fast-forwarding through gossip data downloaded from a server.

2 years agoDocument lightning crate features
Mateusz Faltyn [Tue, 24 May 2022 23:21:29 +0000 (16:21 -0700)]
Document lightning crate features

2 years agoRename HTLC `input_idx` fields to `commitment_tx_output_idx`
Matt Corallo [Sun, 24 Apr 2022 20:30:50 +0000 (20:30 +0000)]
Rename HTLC `input_idx` fields to `commitment_tx_output_idx`

Several fields used in tracking on-chain HTLC outputs were
named `input_idx` despite referring to the output index in the
commitment transaction. Here they are all renamed
`commitment_tx_output_idx` for clarity.

2 years agoMerge pull request #1490 from arik-so/rust_beta_doc_fix
Jeffrey Czyz [Mon, 23 May 2022 05:16:04 +0000 (00:16 -0500)]
Merge pull request #1490 from arik-so/rust_beta_doc_fix

Fix rust beta docs for lightning-invoice crate.

2 years agoMerge pull request #1492 from tnull/2022-05-fix-bolts-url
Arik Sosman [Fri, 20 May 2022 18:20:55 +0000 (11:20 -0700)]
Merge pull request #1492 from tnull/2022-05-fix-bolts-url

Docs: Update to 'new' spec repository URL.

2 years agoMerge pull request #1456 from jkczyz/2022-04-effective-capacity
Arik Sosman [Fri, 20 May 2022 17:56:10 +0000 (10:56 -0700)]
Merge pull request #1456 from jkczyz/2022-04-effective-capacity

Use `EffectiveCapacity` in `Score` trait

2 years agoFix rust beta docs lightning-invoice crate.
Arik Sosman [Thu, 19 May 2022 17:07:35 +0000 (10:07 -0700)]
Fix rust beta docs lightning-invoice crate.

2 years agoUse new spec repository URL.
Elias Rohrer [Fri, 20 May 2022 15:17:29 +0000 (17:17 +0200)]
Use new spec repository URL.

2 years agoScore without uncertainty for exact liquidity
Jeffrey Czyz [Wed, 27 Apr 2022 20:55:33 +0000 (15:55 -0500)]
Score without uncertainty for exact liquidity

For direct channels, the channel liquidity is known with certainty. Use
this knowledge in ProbabilisticScorer by either penalizing with the
per-hop penalty or u64::max_value depending on the amount.

2 years agoPass effective capacity to scorer
Jeffrey Czyz [Fri, 22 Apr 2022 13:21:18 +0000 (08:21 -0500)]
Pass effective capacity to scorer

Scorers could benefit from having the channel's EffectiveCapacity rather
than a u64 msat value. For instance, ProbabilisticScorer can give a more
accurate penalty when given the ExactLiquidity variant. Pass a struct
wrapping the effective capacity, the proposed amount, and any in-flight
HTLC value.

2 years agoUse correct penalty and CLTV delta in route hints
Jeffrey Czyz [Tue, 17 May 2022 21:57:55 +0000 (16:57 -0500)]
Use correct penalty and CLTV delta in route hints

For route hints, the aggregate next hops path penalty and CLTV delta
should be computed after considering each hop rather than before.
Otherwise, these aggregate values will include values from the current
hop, too.

2 years agoUse the correct amount when scoring route hints
Jeffrey Czyz [Tue, 17 May 2022 21:43:36 +0000 (16:43 -0500)]
Use the correct amount when scoring route hints

When scoring route hints, the amount passed to the scorer should include
any fees needed for subsequent hops. This worked correctly for single-
hop hints since there are no further hops, but not for multi-hint hops
(except the final one).

2 years agoDistinguish maximum HTLC from effective capacity
Jeffrey Czyz [Sun, 23 Jan 2022 23:25:38 +0000 (17:25 -0600)]
Distinguish maximum HTLC from effective capacity

Using EffectiveCapacity in scoring gives more accurate success
probabilities when the maximum HTLC value is less than the channel
capacity. Change EffectiveCapacity to prefer the channel's capacity
over its maximum HTLC limit, but still use the latter for route finding.

2 years agoStore an `events::PaymentPurpose` with each claimable payment
Matt Corallo [Wed, 4 May 2022 17:49:09 +0000 (17:49 +0000)]
Store an `events::PaymentPurpose` with each claimable payment

In fc77c57c3c6e165d26cb5c1f5d1afee0ecd02589 we stopped using the
`FInalOnionHopData` in `OnionPayload::Invoice` directly and intend
to remove it eventually. However, in the next few commits we need
access to the payment secret when claimaing a payment, as we create
a new `PaymentPurpose` during the claim process for a new event.

In order to get access to a `PaymentPurpose` without having access
to the `FinalOnionHopData` we here change the storage of
`claimable_htlcs` to store a single `PaymentPurpose` explicitly
with each set of claimable HTLCs.

2 years agoEnable removal of `OnionPayload::Invoice::_legacy_hop_data` later
Matt Corallo [Wed, 4 May 2022 16:29:29 +0000 (16:29 +0000)]
Enable removal of `OnionPayload::Invoice::_legacy_hop_data` later

In fc77c57c3c6e165d26cb5c1f5d1afee0ecd02589 we stopped using the
`FinalOnionHopData` in `OnionPayload::Invoice` directly and renamed
it `_legacy_hop_data` with the intent of removing it in a few
versions. However, we continue to check that it was included in the
serialized data, meaning we would not be able to remove it without
breaking ability to serialize full `ChannelManager`s.

This fixes that by making the `_legacy_hop_data` an `Option` which
we will happily handle just fine if its `None`.

2 years agoPathBuildingHop::value_contribution_msat in Debug
Jeffrey Czyz [Thu, 5 May 2022 21:19:40 +0000 (16:19 -0500)]
PathBuildingHop::value_contribution_msat in Debug

2 years agoMerge pull request #1476 from tnull/2022-05-maximum-path-length
Matt Corallo [Wed, 18 May 2022 19:22:42 +0000 (19:22 +0000)]
Merge pull request #1476 from tnull/2022-05-maximum-path-length

Consider maximum path length during path finding.

2 years agoConsider maximum path length during path finding.
Elias Rohrer [Wed, 18 May 2022 16:50:43 +0000 (18:50 +0200)]
Consider maximum path length during path finding.

2 years agoRandomize the `ConnectStyle` during tests 2022-05-new-chain-tests
Matt Corallo [Sun, 15 May 2022 19:13:43 +0000 (19:13 +0000)]
Randomize the `ConnectStyle` during tests

We have a bunch of fancy infrastructure to ensure we can connect
blocks using all our different connection interfaces, but we only
bother to use it in a few select tests.

This expands our use of `ConnectStyle` to most of our tests by
simply randomizing the style in each test. This makes our tests
non-deterministic, but we print the connection style at start so
that it's easy to reproduce a failure deterministically.

2 years agoMake tests more robust against different connection styles
Matt Corallo [Sun, 15 May 2022 19:38:01 +0000 (19:38 +0000)]
Make tests more robust against different connection styles

In the next commit we'll randomize the `ConnectStyle` used in each
test. However, some tests are slightly too prescriptive, which we
address here in a few places.

2 years agoAdd new block `ConnectionStyle`s for `transaction_unconfirmed`
Matt Corallo [Sun, 15 May 2022 19:03:45 +0000 (19:03 +0000)]
Add new block `ConnectionStyle`s for `transaction_unconfirmed`

Previously `transaction_unconfirmed` was never called in tests!

2 years agoMerge pull request #1472 from TheBlueMatt/2022-06-less-secp-ctx
valentinewallace [Tue, 17 May 2022 20:10:09 +0000 (16:10 -0400)]
Merge pull request #1472 from TheBlueMatt/2022-06-less-secp-ctx

Pull secp256k1 contexts from per-peer to per-PeerManager

2 years agoMerge pull request #1418 from bruteforcecat/timeout-outbound-paymnet-retires-instead...
Matt Corallo [Tue, 17 May 2022 17:32:46 +0000 (17:32 +0000)]
Merge pull request #1418 from bruteforcecat/timeout-outbound-paymnet-retires-instead-of-count-out

add timeout retry strategy to outbound payment

2 years agoadd timeout retry strategy to outbound payment
KaFai Choi [Sat, 14 May 2022 02:52:38 +0000 (09:52 +0700)]
add timeout retry strategy to outbound payment

2 years agoMerge pull request #1485 from ViktorTigerstrom/2022-05-add-force-close-param
Matt Corallo [Mon, 16 May 2022 21:48:51 +0000 (21:48 +0000)]
Merge pull request #1485 from ViktorTigerstrom/2022-05-add-force-close-param

Add missing `counterparty_node_id` in `force_close_channel` calls

2 years agoAdd missing `counterparty_node_id` in `force_close_channel` calls
Viktor Tigerström [Mon, 16 May 2022 20:25:46 +0000 (22:25 +0200)]
Add missing `counterparty_node_id` in `force_close_channel` calls

2 years agoMerge pull request #1479 from ViktorTigerstrom/2022-05-pass-counterparty-id-to-functions
Arik Sosman [Mon, 16 May 2022 19:44:16 +0000 (12:44 -0700)]
Merge pull request #1479 from ViktorTigerstrom/2022-05-pass-counterparty-id-to-functions

Pass `counterparty_node_id` to `ChannelManager` functions

2 years agoMerge pull request #1475 from atalw/2022-04-paymentforwarded-event
valentinewallace [Mon, 16 May 2022 18:21:39 +0000 (14:21 -0400)]
Merge pull request #1475 from atalw/2022-04-paymentforwarded-event

Expose `next_channel_id` in `PaymentForwarded` event

2 years agoStore full blocks in the test blockchain tracker instead of headers
Matt Corallo [Sun, 15 May 2022 18:47:32 +0000 (18:47 +0000)]
Store full blocks in the test blockchain tracker instead of headers

2 years agoAdd `next_channel_id` in `PaymentForwarded` event
atalw [Fri, 22 Apr 2022 07:03:18 +0000 (12:33 +0530)]
Add `next_channel_id` in `PaymentForwarded` event

This update also includes a minor refactor. The return type of
`pending_monitor_events` has been changed to a `Vec` tuple with the
`OutPoint` type. This associates a `Vec` of `MonitorEvent`s with a
funding outpoint.

We've also renamed `source/sink_channel_id` to `prev/next_channel_id` in
the favour of clarity.

2 years agoMerge pull request #1429 from TheBlueMatt/2022-04-drop-no-conn-possible
Matt Corallo [Sat, 14 May 2022 19:35:47 +0000 (19:35 +0000)]
Merge pull request #1429 from TheBlueMatt/2022-04-drop-no-conn-possible

2 years agoUpdate `OpenChannelRequest` documentation
Viktor Tigerström [Fri, 13 May 2022 21:52:20 +0000 (23:52 +0200)]
Update `OpenChannelRequest` documentation

As the `counterparty_node_id` is now required to be passed back to the
`ChannelManager` to accept or reject an inbound channel request, the
documentation is updated to reflect that.

2 years agoPass `counterparty_node_id` to `accept_inbound_channel`
Viktor Tigerström [Thu, 12 May 2022 22:13:39 +0000 (00:13 +0200)]
Pass `counterparty_node_id` to `accept_inbound_channel`

2 years agoPass `counterparty_node_id` to `funding_transaction_generated`
Viktor Tigerström [Thu, 12 May 2022 21:59:41 +0000 (23:59 +0200)]
Pass `counterparty_node_id` to `funding_transaction_generated`

2 years agoPass `counterparty_node_id` to `force_close_channel`
Viktor Tigerström [Thu, 12 May 2022 21:26:32 +0000 (23:26 +0200)]
Pass `counterparty_node_id` to `force_close_channel`

2 years agoPass `counterparty_node_id` to `close_channel` functions
Viktor Tigerström [Thu, 12 May 2022 20:31:29 +0000 (22:31 +0200)]
Pass `counterparty_node_id` to `close_channel` functions

2 years agomove Time trait from scoring mod to util::time and set it visibile within crate
KaFai Choi [Mon, 18 Apr 2022 03:32:13 +0000 (10:32 +0700)]
move Time trait from scoring mod to util::time and set it visibile within crate

2 years agoAdd `counterparty_node_id` to `FundingGenerationReady`
Viktor Tigerström [Fri, 13 May 2022 21:43:25 +0000 (23:43 +0200)]
Add `counterparty_node_id` to `FundingGenerationReady`

2 years agoMerge pull request #1480 from tnull/2022-05-fix-test-warnings
Jeffrey Czyz [Fri, 13 May 2022 17:20:56 +0000 (12:20 -0500)]
Merge pull request #1480 from tnull/2022-05-fix-test-warnings

Fix unused code warnings test.

2 years agoFix unused code warnings.
Elias Rohrer [Fri, 13 May 2022 16:03:51 +0000 (18:03 +0200)]
Fix unused code warnings.

2 years agoPull secp256k1 contexts from per-peer to per-PeerManager 2022-06-less-secp-ctx
Matt Corallo [Mon, 9 May 2022 23:03:50 +0000 (23:03 +0000)]
Pull secp256k1 contexts from per-peer to per-PeerManager

Instead of including a `Secp256k1` context per
`PeerChannelEncryptor`, which is relatively expensive memory-wise
and nontrivial CPU-wise to construct, we should keep one for all
peers and simply reuse it.

This is relatively trivial so we do so in this commit.

Since its trivial to do so, we also take this opportunity to
randomize the new PeerManager context.

2 years agoMerge pull request #1023 from TheBlueMatt/2021-07-par-gossip-processing
Matt Corallo [Wed, 11 May 2022 17:24:16 +0000 (17:24 +0000)]
Merge pull request #1023 from TheBlueMatt/2021-07-par-gossip-processing

2 years agoMerge pull request #1477 from dunxen/2022-05-invoice-expiry-nits
Matt Corallo [Wed, 11 May 2022 16:12:15 +0000 (16:12 +0000)]
Merge pull request #1477 from dunxen/2022-05-invoice-expiry-nits

2 years agoAddress post-ACK formatting nits from #1474
Duncan Dean [Wed, 11 May 2022 08:57:38 +0000 (10:57 +0200)]
Address post-ACK formatting nits from #1474

2 years agoAdd a few more simple tests of the PeerHandler 2021-07-par-gossip-processing
Matt Corallo [Tue, 12 Apr 2022 19:19:00 +0000 (19:19 +0000)]
Add a few more simple tests of the PeerHandler

These increase coverage and caught previous lockorder inversions.

2 years agoAdd support for testing recvd messages in TestChannelMessageHandler
Matt Corallo [Tue, 12 Apr 2022 19:16:38 +0000 (19:16 +0000)]
Add support for testing recvd messages in TestChannelMessageHandler

2 years agoRequire `PartialEq` for `wire::Message` in `cfg(test)`
Matt Corallo [Tue, 12 Apr 2022 19:05:15 +0000 (19:05 +0000)]
Require `PartialEq` for `wire::Message` in `cfg(test)`

...and implement wire::Type for `()` for `feature = "_test_utils"`.

2 years agoDrop a needless match in favor of an `if let`
Matt Corallo [Mon, 11 Apr 2022 17:34:11 +0000 (17:34 +0000)]
Drop a needless match in favor of an `if let`

2 years ago[net-tokio] Explicitly yield after processing messages from a peer
Matt Corallo [Tue, 22 Mar 2022 21:03:41 +0000 (21:03 +0000)]
[net-tokio] Explicitly yield after processing messages from a peer

This reduces instances of disconnect peers after single timer
intervals somewhat, at least on Tokio 1.14.

2 years agoDrop `PeerHolder` as it now only has one field
Matt Corallo [Fri, 25 Feb 2022 21:57:57 +0000 (21:57 +0000)]
Drop `PeerHolder` as it now only has one field

2 years agoKeep the same read buffer unless the last message was overly large
Matt Corallo [Mon, 11 Oct 2021 05:03:45 +0000 (05:03 +0000)]
Keep the same read buffer unless the last message was overly large

This avoids repeatedly deallocating-allocating a Vec for the peer
read buffer after every message/header.

2 years agoCreate a simple `FairRwLock` to avoid readers starving writers
Matt Corallo [Wed, 6 Oct 2021 16:58:56 +0000 (16:58 +0000)]
Create a simple `FairRwLock` to avoid readers starving writers

Because we handle messages (which can take some time, persisting
things to disk or validating cryptographic signatures) with the
top-level read lock, but require the top-level write lock to
connect new peers or handle disconnection, we are particularly
sensitive to writer starvation issues.

Rust's libstd RwLock does not provide any fairness guarantees,
using whatever the OS provides as-is. On Linux, pthreads defaults
to starving writers, which Rust's RwLock exposes to us (without
any configurability).

Here we work around that issue by blocking readers if there are
pending writers, optimizing for readable code over
perfectly-optimized blocking.

2 years agoWake reader future when we fail to flush socket buffer
Matt Corallo [Sun, 3 Oct 2021 21:44:52 +0000 (21:44 +0000)]
Wake reader future when we fail to flush socket buffer

This avoids any extra calls to `read_event` after a write fails to
flush the write buffer fully, as is required by the PeerManager
API (though it isn't critical).

2 years agoLimit blocked PeerManager::process_events waiters to two
Matt Corallo [Wed, 6 Oct 2021 04:45:07 +0000 (04:45 +0000)]
Limit blocked PeerManager::process_events waiters to two

Only one instance of PeerManager::process_events can run at a time,
and each run always finishes all available work before returning.
Thus, having several threads blocked on the process_events lock
doesn't accomplish anything but blocking more threads.

Here we limit the number of blocked calls on process_events to two
- one processing events and one blocked at the top which will
process all available events after the first completes.

2 years agoAvoid the peers write lock unless we need it in timer_tick_occurred
Matt Corallo [Wed, 6 Oct 2021 06:10:01 +0000 (06:10 +0000)]
Avoid the peers write lock unless we need it in timer_tick_occurred

Similar to the previous commit, this avoids "blocking the world" on
every timer tick unless we need to disconnect peers.

2 years agoAvoid taking the peers write lock during event processing
Matt Corallo [Sat, 25 Sep 2021 22:24:23 +0000 (22:24 +0000)]
Avoid taking the peers write lock during event processing

Because the peers write lock "blocks the world", and happens after
each read event, always taking the write lock has pretty severe
impacts on parallelism. Instead, here, we only take the global
write lock if we have to disconnect a peer.

2 years ago[net-tokio] Call PeerManager::process_events without blocking reads
Matt Corallo [Wed, 6 Oct 2021 04:29:19 +0000 (04:29 +0000)]
[net-tokio] Call PeerManager::process_events without blocking reads

Unlike very ancient versions of lightning-net-tokio, this does not
rely on a single global process_events future, but instead has one
per connection. This could still cause significant contention, so
we'll ensure only two process_events calls can exist at once in
the next few commits.

2 years agoProcess messages with only the top-level read lock held
Matt Corallo [Wed, 6 Oct 2021 06:58:15 +0000 (06:58 +0000)]
Process messages with only the top-level read lock held

Users are required to only ever call `read_event` serially
per-peer, thus we actually don't need any locks while we're
processing messages - we can only be processing messages in one
thread per-peer.

That said, we do need to ensure that another thread doesn't
disconnect the peer we're processing messages for, as that could
result in a peer_disconencted call while we're processing a
message for the same peer - somewhat nonsensical.

This significantly improves parallelism especially during gossip
processing as it avoids waiting on the entire set of individual
peer locks to forward a gossip message while several other threads
are validating gossip messages with their individual peer locks
held.

2 years agoProcess messages from peers in parallel in `PeerManager`.
Matt Corallo [Fri, 30 Jul 2021 18:03:28 +0000 (18:03 +0000)]
Process messages from peers in parallel in `PeerManager`.

This adds the required locking to process messages from different
peers simultaneously in `PeerManager`. Note that channel messages
are still processed under a global lock in `ChannelManager`, and
most work is still processed under a global lock in gossip message
handling, but parallelizing message deserialization and message
decryption is somewhat helpful.

2 years agoMerge pull request #1474 from dunxen/2022-05-actually-add-expiry
Matt Corallo [Tue, 10 May 2022 23:23:57 +0000 (23:23 +0000)]
Merge pull request #1474 from dunxen/2022-05-actually-add-expiry

lightning-invoice/utils: Actually add expiry to invoices

2 years agoAdd expiry to non-phantom invoice utils
Duncan Dean [Tue, 10 May 2022 17:01:15 +0000 (19:01 +0200)]
Add expiry to non-phantom invoice utils

2 years agoActually add expiry to phantom invoice utils
Duncan Dean [Tue, 10 May 2022 16:56:02 +0000 (18:56 +0200)]
Actually add expiry to phantom invoice utils

2 years agoMerge pull request #1465 from tnull/2022-05-encode-update-type-bytes
Matt Corallo [Mon, 9 May 2022 19:11:56 +0000 (19:11 +0000)]
Merge pull request #1465 from tnull/2022-05-encode-update-type-bytes

Encode & test `channel_update` message type in failure messages.

2 years agoMerge pull request #1471 from ViktorTigerstrom/2022-05-test-disconnected-before-fundi...
Matt Corallo [Mon, 9 May 2022 16:29:57 +0000 (16:29 +0000)]
Merge pull request #1471 from ViktorTigerstrom/2022-05-test-disconnected-before-funding-broadcasted

Add test coverage for `ClosureReason::DisconnectedPeer`