Fix deadlock when closing an unavailable channel #2657
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## main #2657 +/- ##
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- Coverage 88.99% 88.96% -0.04%
==========================================
Files 112 112
Lines 87168 87207 +39
Branches 87168 87207 +39
==========================================
+ Hits 77575 77580 +5
- Misses 7353 7392 +39
+ Partials 2240 2235 -5
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TheBlueMatt
reviewed
Oct 11, 2023
| @@ -4001,7 +4003,7 @@ where | |||
| for channel_id in channel_ids { | |||
| if !peer_state.has_channel(channel_id) { | |||
| return Err(APIError::ChannelUnavailable { | |||
| err: format!("Channel with ID {} was not found for the passed counterparty_node_id {}", channel_id, counterparty_node_id), | |||
| err: format!("Channel with id {} not found for the passed counterparty node_id {}", channel_id, counterparty_node_id), | |||
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Not sure I understand this change.
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It is needed for the test to pass, as I'm checking the APIError::ChannelUnavailable with the same expected message in check_channel_unavailable_error()
| @@ -4112,7 +4114,7 @@ where | |||
| next_hop_channel_id, next_node_id) | |||
| }), | |||
| None => return Err(APIError::ChannelUnavailable { | |||
| err: format!("Channel with id {} not found for the passed counterparty node_id {}.", | |||
| err: format!("Channel with id {} not found for the passed counterparty node_id {}", | |||
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Or this one, we dont usually add periods.
wpaulino
approved these changes
Oct 12, 2023
TheBlueMatt
approved these changes
Oct 12, 2023
k0k0ne
pushed a commit
to bitlightlabs/rust-lightning
that referenced
this pull request
Sep 30, 2024
0.0.118 - Oct 23, 2023 - "Just the Twelve Sinks" API Updates =========== * BOLT12 sending and receiving is now supported as an alpha feature. You may run into unexpected issues and will need to have a direct connection with the offer's blinded path introduction points as messages are not yet routed. We are seeking feedback from early testers (lightningdevkit#2578, lightningdevkit#2039). * `ConfirmationTarget` has been rewritten to provide information about the specific use LDK needs the feerate estimate for, rather than the generic low-, medium-, and high-priority estimates. This allows LDK users to more accurately target their feerate estimates (lightningdevkit#2660). For those wishing to retain their existing behavior, see the table below for conversion. * `ChainHash` is now used in place of `BlockHash` where it represents the genesis block (lightningdevkit#2662). * `lightning-invoice` payment utilities now take a `Deref` to `AChannelManager` (lightningdevkit#2652). * `peel_onion` is provided to statelessly decode an `OnionMessage` (lightningdevkit#2599). * `ToSocketAddrs` + `Display` are now impl'd for `SocketAddress` (lightningdevkit#2636, lightningdevkit#2670) * `Display` is now implemented for `OutPoint` (lightningdevkit#2649). * `Features::from_be_bytes` is now provided (lightningdevkit#2640). For those moving to the new `ConfirmationTarget`, the new variants in terms of the old mempool/low/medium/high priorities are as follows: * `OnChainSweep` = `HighPriority` * `MaxAllowedNonAnchorChannelRemoteFee` = `max(25 * 250, HighPriority * 10)` * `MinAllowedAnchorChannelRemoteFee` = `MempoolMinimum` * `MinAllowedNonAnchorChannelRemoteFee` = `Background - 250` * `AnchorChannelFee` = `Background` * `NonAnchorChannelFee` = `Normal` * `ChannelCloseMinimum` = `Background` Bug Fixes ========= * Calling `ChannelManager::close_channel[_with_feerate_and_script]` on a channel which did not exist would immediately hang holding several key `ChannelManager`-internal locks (lightningdevkit#2657). * Channel information updates received from a failing HTLC are no longer applied to our `NetworkGraph`. This prevents a node which we attempted to route a payment through from being able to learn the sender of the payment. In some rare cases, this may result in marginally reduced payment success rates (lightningdevkit#2666). * Anchor outputs are now properly considered when calculating the amount available to send in HTLCs. This can prevent force-closes in anchor channels when sending payments which overflow the available balance (lightningdevkit#2674). * A peer that sends an `update_fulfill_htlc` message for a forwarded HTLC, then reconnects prior to sending a `commitment_signed` (thus retransmitting their `update_fulfill_htlc`) may result in the channel stalling and being unable to make progress (lightningdevkit#2661). * In exceedingly rare circumstances, messages intended to be sent to a peer prior to reconnection can be sent after reconnection. This could result in undefined channel state and force-closes (lightningdevkit#2663). Backwards Compatibility ======================= * Creating a blinded path to receive a payment then downgrading to LDK prior to 0.0.117 may result in failure to receive the payment (lightningdevkit#2413). * Calling `ChannelManager::pay_for_offer` or `ChannelManager::create_refund_builder` may prevent downgrading to LDK prior to 0.0.118 until the payment times out and has been removed (lightningdevkit#2039). Node Compatibility ================== * LDK now sends a bogus `channel_reestablish` message to peers when they ask to resume an unknown channel. This should cause LND nodes to force-close and broadcast the latest channel state to the chain. In order to trigger this when we wish to force-close a channel, LDK now disconnects immediately after sending a channel-closing `error` message. This should result in cooperative peers also working to confirm the latest commitment transaction when we wish to force-close (lightningdevkit#2658). Security ======== 0.0.118 expands mitigations against transaction cycling attacks to non-anchor channels, though note that no mitigations which exist today are considered robust to prevent the class of attacks. * In order to mitigate against transaction cycling attacks, non-anchor HTLC transactions are now properly re-signed before broadcasting (lightningdevkit#2667). In total, this release features 61 files changed, 3470 insertions, 1503 deletions in 85 commits from 12 authors, in alphabetical order: * Antonio Yang * Elias Rohrer * Evan Feenstra * Fedeparma74 * Gursharan Singh * Jeffrey Czyz * Matt Corallo * Sergi Delgado Segura * Vladimir Fomene * Wilmer Paulino * benthecarman * slanesuke
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Fix a deadlock issue when the user tries to close a channel that is not available anymore.
Tests have been added to cover the cases where the API is used with unavailable channels.