2019-02-18 18:10:05 +00:00

9.7 KiB

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

[0.3.3] - 2018-02-18

Added

  • Dynamic reconfiguration, which allows reloading the configuration file to make changes during runtime by sending a SIGHUP signal (note: this only works with -useconffile and not -useconf and currently reconfiguring TUN/TAP is not supported)
  • Support for building Yggdrasil as an iOS or Android framework if the appropriate tools (e.g. gomobile/gobind + SDKs) are available
  • Connection contexts used for TCP connections which allow more exotic socket options to be set, e.g.
    • Reusing the multicast socket to allow multiple running Yggdrasil instances without having to disable multicast
    • Allowing supported Macs to peer with other nearby Macs that aren't even on the same Wi-Fi network using AWDL
  • Flexible logging support, which allows for logging at different levels of verbosity

Changed

  • Switch changes to improve parent selection
  • Node configuration is now stored centrally, rather than having fragments/copies distributed at startup time
  • Significant refactoring in various areas, including for link types (TCP, AWDL etc), generic streams and adapters
  • macOS builds through CircleCI are now 64-bit only

Fixed

  • Simplified systemd service now in contrib

Removed

  • ReadTimeout option is now deprecated

[0.3.2] - 2018-12-26

Added

  • The admin socket is now multithreaded, greatly improving performance of the crawler and allowing concurrent lookups to take place
  • The ability to hide NodeInfo defaults through either setting the NodeInfoPrivacy option or through setting individual NodeInfo attributes to null

Changed

  • The armhf build now targets ARMv6 instead of ARMv7, adding support for Raspberry Pi Zero and other older models, amongst others

Fixed

  • DHT entries are now populated using a copy in memory to fix various potential DHT bugs
  • DHT traffic should now throttle back exponentially to reduce idle traffic
  • Adjust how nodes are inserted into the DHT which should help to reduce some incorrect DHT traffic
  • In TAP mode, the NDP target address is now correctly used when populating the peer MAC table. This fixes serious connectivity problems when in TAP mode, particularly on BSD
  • In TUN mode, ICMPv6 packets are now ignored whereas they were incorrectly processed before

[0.3.1] - 2018-12-17

Added

  • Build name and version is now imprinted onto the binaries if available/specified during build
  • Ability to disable admin socket with AdminListen: none
  • AF_UNIX domain sockets for the admin socket
  • Cache size restriction for crypto-key routes
  • NodeInfo support for specifying node information, e.g. node name or contact, which can be used in network crawls or surveys
  • getNodeInfo request added to admin socket
  • Adds flags -c, -l and -t to build script for specifying GCFLAGS, LDFLAGS or whether to keep symbol/DWARF tables

Changed

  • Default AdminListen in newly generated config is now unix:///var/run/yggdrasil.sock
  • Formatting of getRoutes in the admin socket has been improved
  • Debian package now adds yggdrasil group to assist with AF_UNIX admin socket permissions
  • Crypto, address and other utility code refactored into separate Go packages

Fixed

  • Switch peer convergence is now much faster again (previously it was taking up to a minute once the peering was established)
  • yggdrasilctl is now less prone to crashing when parameters are specified incorrectly
  • Panic fixed when Peers or InterfacePeers was commented out

[0.3.0] - 2018-12-12

Added

  • Crypto-key routing support for tunnelling both IPv4 and IPv6 over Yggdrasil
  • Add advanced SwitchOptions in configuration file for tuning the switch
  • Add dhtPing to the admin socket to aid in crawling the network
  • New macOS .pkgs built automatically by CircleCI
  • Add Dockerfile to repository for Docker support
  • Add -json command line flag for generating and normalising configuration in plain JSON instead of HJSON
  • Build name and version numbers are now imprinted onto the build, accessible through yggdrasil -version and yggdrasilctl getSelf
  • Add ability to disable admin socket by setting AdminListen to "none"
  • yggdrasilctl now tries to look for the default configuration file to find AdminListen if -endpoint is not specified
  • yggdrasilctl now returns more useful logging in the event of a fatal error

Changed

  • Switched to Chord DHT (instead of Kademlia, although still compatible at the protocol level)
  • The AdminListen option and yggdrasilctl now default to unix:///var/run/yggdrasil.sock on BSDs, macOS and Linux
  • Cleaned up some of the parameter naming in the admin socket
  • Latency-based parent selection for the switch instead of uptime-based (should help to avoid high latency links somewhat)
  • Real peering endpoints now shown in the admin socket getPeers call to help identify peerings
  • Reuse the multicast port on supported platforms so that multiple Yggdrasil processes can run
  • yggdrasilctl now has more useful help text (with -help or when no arguments passed)

Fixed

  • Memory leaks in the DHT fixed
  • Crash fixed where the ICMPv6 NDP goroutine would incorrectly start in TUN mode
  • Removing peers from the switch table if they stop sending switch messages but keep the TCP connection alive

[0.2.7] - 2018-10-13

Added

  • Session firewall, which makes it possible to control who can open sessions with your node
  • Add getSwitchQueues to admin socket
  • Add InterfacePeers for configuring static peerings via specific network interfaces
  • More output shown in getSwitchPeers
  • FreeBSD service script in contrib

Changed

  • CircleCI builds are now built with Go 1.11 instead of Go 1.9

Fixed

  • Race condition in the switch table, reported by trn
  • Debug builds are now tested by CircleCI as well as platform release builds
  • Port number fixed on admin graph from unknown nodes

[0.2.6] - 2018-07-31

Added

  • Configurable TCP timeouts to assist in peering over Tor/I2P
  • Prefer IPv6 flow label when extending coordinates to sort backpressure queues
  • arm64 builds through CircleCI

Changed

  • Sort dot graph links by integer value

[0.2.5] - 2018-07-19

Changed

  • Make yggdrasilctl less case sensitive
  • More verbose TCP disconnect messages

Fixed

  • Fixed debug builds
  • Cap maximum MTU on Linux in TAP mode
  • Process successfully-read TCP traffic before checking for / handling errors (fixes EOF behavior)

[0.2.4] - 2018-07-08

Added

  • Support for UNIX domain sockets for the admin socket using unix:///path/to/file.sock
  • Centralised platform-specific defaults

Changed

  • Backpressure tuning, including reducing resource consumption

Fixed

  • macOS local ping bug, which previously prevented you from pinging your own utun adapter's IPv6 address

[0.2.3] - 2018-06-29

Added

  • Begin keeping changelog (incomplete and possibly inaccurate information before this point).
  • Build RPMs in CircleCI using alien. This provides package support for Fedora, Red Hat Enterprise Linux, CentOS and other RPM-based distributions.

Changed

  • Local backpressure improvements.
  • Change box_pub_key to key in admin API for simplicity.
  • Session cleanup.

[0.2.2] - 2018-06-21

Added

  • Add yggdrasilconf utility for testing with the vyatta-yggdrasil package.
  • Add a randomized retry delay after TCP disconnects, to prevent synchronization livelocks.

Changed

  • Update build script to strip by default, which significantly reduces the size of the binary.
  • Add debug -d and UPX -u flags to the build script.
  • Start pprof in debug builds based on an environment variable (e.g. PPROFLISTEN=localhost:6060), instead of a flag.

Fixed

  • Fix typo in big-endian BOM so that both little-endian and big-endian UTF-16 files are detected correctly.

[0.2.1] - 2018-06-15

Changed

  • The address range was moved from fd00::/8 to 200::/7. This range was chosen as it is marked as deprecated. The change prevents overlap with other ULA privately assigned ranges.

Fixed

  • UTF-16 detection conversion for configuration files, which can particularly be a problem on Windows 10 if a configuration file is generated from within PowerShell.
  • Fixes to the Debian package control file.
  • Fixes to the launchd service for macOS.
  • Fixes to the DHT and switch.

[0.2.0] - 2018-06-13

Added

  • Exchange version information during connection setup, to prevent connections with incompatible versions.

Changed

  • Wire format changes (backwards incompatible).
  • Less maintenance traffic per peer.
  • Exponential back-off for DHT maintenance traffic (less maintenance traffic for known good peers).
  • Iterative DHT (added some time between v0.1.0 and here).
  • Use local queue sizes for a sort of local-only backpressure routing, instead of the removed bandwidth estimates, when deciding where to send a packet.

Removed

  • UDP peering, this may be added again if/when a better implementation appears.
  • Per peer bandwidth estimation, as this has been replaced with an early local backpressure implementation.

[0.1.0] - 2018-02-01

Added

  • Adopt semantic versioning.

Changed

  • Wire format changes (backwards incompatible).
  • Many other undocumented changes leading up to this release and before the next one.

[0.0.1] - 2017-12-28

Added

  • First commit.
  • Initial public release.