v0.0.120 - Jan 17, 2024 - "Unblinded Fuzzers"

API Updates

• The PeerManager bound on UtxoLookup was removed entirely. This enables use of UtxoLookup in cases broken in 0.0.119 by [#2773] (#2822).
• LDK now exposes and fully implements the route blinding feature (#2812).
• The lightning-transaction-sync crate no longer relies on system time without the time feature (#2799, [#2817]).
• lightning::onion_message's module layout has changed (#2821).
• Event::ChannelClosed now includes the channel_funding_txo (#2800).
• CandidateRouteHop variants were destructured into individual structs, hiding some fields which were not generally consumable (#2802).

Bug Fixes

• Fixed a rare issue where lightning-net-tokio may not fully flush its send buffer, leading to connection hangs (#2832).
• Fixed a panic which may occur when connecting to a peer if we opened a second channel with that peer while they were disconnected (#2808).
• Retries for a payment which previously failed in a blinded path will now always use an alternative blinded path (#2818).
• Feature's Eq and Hash implementation now ignore dummy bytes (#2808).
• Some missing DiscardFunding or ChannelClosed events are now generated in rare funding-related failures (#2809).
• Fixed a privacy issue in blinded path generation where the real cltv_expiry_delta would be exposed to senders (#2831).

Security

0.0.120 fixes a denial-of-service vulnerability which is reachable from untrusted input from peers if the UserConfig::manually_accept_inbound_channels option is enabled. * A peer that sent an open_channel message with the channel_type field unfilled would trigger a reachable unwrap since LDK 0.0.117 (#2808). * In protocols where a funding output is shared with our counterparty before it is given to LDK, a malicious peer could have caused a reachable panic by reusing the same funding info in (#2809).

In total, this release features 67 files changed, 3016 insertions, 2473 deletions in 79 commits from 9 authors, in alphabetical order: * Elias Rohrer * Jeffrey Czyz * José A.P * Matt Corallo * Tibo-lg * Valentine Wallace * benthecarman * optout * shuoer86