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libp2p / go-libp2p-pubsub

The PubSub implementation for go-libp2p
https://github.com/libp2p/specs/tree/master/pubsub
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Bump github.com/libp2p/go-libp2p-core from 0.5.3 to 0.5.5 #337

Closed dependabot-preview[bot] closed 4 years ago

dependabot-preview[bot] commented 4 years ago

Bumps github.com/libp2p/go-libp2p-core from 0.5.3 to 0.5.5.

Release notes

Sourced from github.com/libp2p/go-libp2p-core's releases.

v0.5.5

Highlights

📉 Decaying tags in the Connection Manager

This release introduces Decaying Tags in the Connection Manager interfaces. A decaying tag is one whose value automatically decays over time.

The actual application of the decay behaviour is encapsulated in a user-provided decaying function (DecayFn). The function is called on every tick (determined by the tag's Interval property), and returns either the new value of the tag, or whether it should be erased altogether.

We do not set values directly on a decaying tag. Rather, we "bump" decaying tags by a delta. Doing so calls the BumpFn with the old value and the delta, to determine the new value.

Such a pluggable design affords a great deal of flexibility and versatility. Behaviours that are straightforward to implement include:

  • Decay a tag by -1, or by half its current value, on every tick.
  • Every time a value is bumped, sum it to its current value.
  • Exponentially boost a score with every bump.
  • Sum the incoming score, but keep it within min, max bounds.

To use Decaying Tags, check if the Connection Manager supports them first via the SupportsDecay function.

Check the godocs in the connmgr package for more info.

Minor changes

  • Stringer functions for network package enums.

v0.5.4

Highlights

This release adds interfaces for Connection Gating: middleware components that intercept connections at different stages and decide whether to ALLOW or BLOCK the connection. In contrast to Connection Managers, Connection Gaters are actively consulted throughout the dial/listen pipeline.

Connection Gaters can intercept connections at these stages:

  • InterceptPeerDial is called on an imminent outbound peer dial request, prior to the addresses of that peer being available/resolved. Blocking connections at this stage is typical for blacklisting scenarios.

  • InterceptAddrDial is called on an imminent outbound dial to a peer on a particular address. Blocking connections at this stage is typical for address filtering.

  • InterceptAccept is called as soon as a transport listener receives an inbound connection request, before any upgrade takes place. Transports who accept already secure and/or multiplexed connections (e.g. possibly QUIC) MUST call this method regardless, for correctness/consistency.

  • InterceptSecured is called for both inbound and outbound connections, after a security handshake has taken place and we've authenticated the peer.

  • InterceptUpgraded is called for inbound and outbound connections, after libp2p has finished upgrading the connection entirely to a secure, multiplexed channel.

Minor changes

  • Added a FirstSupportedProtocol API to the Protobook interface which returns the first protocol a peer supports from among the given interfaces.
Commits
  • e74305c minor godoc fixes.
  • 65c8515 minor godoc fixes.
  • 9d35da1 implement Stringer for network.{Direction,Connectedness,Reachability}. (#150)
  • e3a456b build(deps): bump github.com/libp2p/go-openssl from 0.0.4 to 0.0.5 (#149)
  • e5edab1 connmgr: introduce abstractions and functions for decaying tags. (#104)
  • 1c39960 Merge pull request #148 from libp2p/feat/supports-alloc
  • 909c774 add connection gating interfaces and types. (#139)
  • dabf5bb changes as per review
  • 98b95a4 non alloc version
  • 43dfa5f check if peer supports a protocol without allocation
  • See full diff in compare view


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dependabot-preview[bot] commented 4 years ago

Superseded by #341.