CKB Dev Log 2024-06-26

[contrun]

Updates

Features

• CKB
  • Enhanced sync_state RPC (including assume_valid_target_reached and min_chain_work_reached) to expose more information Add assume_valid_target_reached: bool to NetRpc::sync_state  #4486
• CKB Fiber Network
  • Added a whitelist config for UDT allowed in current CFN (CKB Fiber Network, previously CKB Payment Channel Network) node. feat: Add UDT whitelist fiber#78
• CKB Nostr Binding
  • Released Lock Script and binding Type Script specification. https://github.com/cryptape/nostr-binding/blob/main/docs/nostr-lock-script.md https://github.com/cryptape/nostr-binding/blob/main/docs/nostr-binding-type-script.md
• CKB Debugger
  • Updated CKB-debugger to support new syscall spawn https://github.com/libraries/ckb-standalone-debugger/tree/spawn-debugger-3

Improvements

• CKB
  • The default transaction pool max ancestors count has been enlarged. This may improve TPS in some cases. chore: tweak max_ancestors_count #4487
  • Fuzzing test for a few CKB network protocol is now available. [WIP] Fuzz test CKBProtocolHandler and ServiceProtocol #4488
• CKB Fiber Network
  • Overhauled the internal data representation of time locked contracts (TLCs) in channel states, with a few issues fixed. Properly handle inconsistent view of active tlcs while constructing commitment transaction for different parties fiber#73 Refactor TLCs related fields in channel state fiber#47 Should not remove TLC from channel state even if valid RemoveTlc message from peer received fiber#30 Save witness scripts for old commitment transaction fiber#31
  • Enhanced the process for deriving secrets for each commitment transaction. Derive secrets from commitment points fiber#96
  • Various specification documents have been updated. Create cross-chain-htlc.md fiber#85 Add invoice spec and fix invoice implementation fiber#77 chore: add p2p message doc fiber#80 chore: add p2p message doc fiber#80
  • A demo for cross-chain transfer is now available for enthusiasts to try. simple cross-chain hub demo fiber#46
  • Optimized transaction building by only using essential cell dependencies. Find the correspending cell deps for script fiber#60
• Tentacle: A new release (v0.6.1) for tentacle is out. chore: bump to 0.6.1 tentacle#371

Fixes

• Offckb: Released v0.2.6. https://github.com/RetricSu/offckb/releases/tag/v0.2.6
  • Fixed wallet transfer in templates
  • Fixed template transfer amount unit
• CKB Fiber Network: multiple bugs squashed
  • Various fee and channel balance partition issues fixed. Fix channel amount and fee issues fiber#69
  • A problem of incompatibility in SUDT and xUDT contract that resulting in CFN contracts not working in xUDT fixed. fix: try to resolve xudt compatibility issue fiber-scripts#5
  • Fix inputs of transactions that consume funding cell
  • Fix wrong order of first second commitment point
  • Fix off by one error in commitment number
  • Fix get sent/received tlc value

In Pipeline…

• Simplifying transaction dependencies resolution for enhanced efficiency Simplify resolving the dependencies of a transaction #4476
• Addressing the overly strict light client ban rules to reduce a few false positive cases.
• Current channel state is removed before shutdown transaction is confirmed. A fix for that is in preparation. Channel state should only be removed when shutdown transaction has been confirmed fiber#86
• More unit tests for CKB Fiber Network are planned. Add test to check that we have the correct amounts of asset for both parties fiber#92 Add an unit test to test that we can correctly revoke a commitment transaction fiber#97
• Improvements for CFN funding implementation are planned. Cells exclusion for active funding tx negotiation fiber#74 Funding tx negotiation verification fiber#75
• Fine-tuning on the RocksDB column key resulting in a dramatic improvement to sync performance is in preparation for a PR.
• Channel re-establishment when peers are reconnected to each other is ready for review. feat: retransmission for tlc fiber#89
• Anticipating the release of an article “Dex1 Demo: A complete CoBuild OTX workflow showcase” demonstrating CoBuild OTX capability.