d507126101
This is in preparation for future changes, but also improves the
handling when talking to pre-v0.13 clients. It breaks out the Hello
message and magic from the rest of the protocol implementation, with the
intention that this small part of the protocol will survive future
changes.
To enable this, and future testing, the new ExchangeHello function takes
an interface that can be implemented by future Hello versions and
returns a version indendent result type. It correctly detects pre-v0.13
protocols and returns a "too old" error message which gets logged to the
user at warning level:
[I6KAH] 09:21:36 WARNING: Connecting to [...]:
the remote device speaks an older version of the protocol (v0.12) not
compatible with this version
Conversely, something entirely unknown will generate:
[I6KAH] 09:40:27 WARNING: Connecting to [...]:
the remote device speaks an unknown (newer?) version of the protocol
The intention is that in future iterations the Hello exchange will
succeed on at least one side and ExchangeHello will return the actual
data from the Hello together with ErrTooOld and an even more precise
message can be generated.
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3289
Syncthing
This is the Syncthing project which pursues the following goals:
-
Define a protocol for synchronization of a folder between a number of collaborating devices. This protocol should be well defined, unambiguous, easily understood, free to use, efficient, secure and language neutral. This is called the Block Exchange Protocol.
-
Provide the reference implementation to demonstrate the usability of said protocol. This is the
syncthingutility. We hope that alternative, compatible implementations of the protocol will arise.
The two are evolving together; the protocol is not to be considered stable until Syncthing 1.0 is released, at which point it is locked down for incompatible changes.
Getting Started
Take a look at the getting started guide.
There are a few examples for keeping Syncthing running in the background on your system in the etc directory. There are also several GUI implementations for Windows, Mac and Linux.
Getting in Touch
The first and best point of contact is the Forum. There is also an IRC
channel, #syncthing on freenode (with a web client), for talking
directly to developers and users. If you've found something that is clearly a
bug, feel free to report it in the GitHub issue tracker.
Building
Building Syncthing from source is easy, and there's a guide that describes it for both Unix and Windows systems.
Signed Releases
As of v0.10.15 and onwards release binaries are GPG signed with the key D26E6ED000654A3E, available from https://syncthing.net/security.html and most key servers.
There is also a built in automatic upgrade mechanism (disabled in some distribution channels) which uses a compiled in ECDSA signature. Mac OS X binaries are also properly code signed.
Documentation
Please see the Syncthing documentation site.
All code is licensed under the MPLv2 License.