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[relay] Feature/relay integration (#2244)

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This update adds new relay integration for NetBird clients. The new relay is based on web sockets and listens on a single port.

- Adds new relay implementation with websocket with single port relaying mechanism
- refactor peer connection logic, allowing upgrade and downgrade from/to P2P connection
- peer connections are faster since it connects first to relay and then upgrades to P2P
- maintains compatibility with old clients by not using the new relay
- updates infrastructure scripts with new relay service
This commit is contained in:
Zoltan Papp
2024-09-08 12:06:14 +02:00
committed by GitHub
parent fcac02a92f
commit 0c039274a4
120 changed files with 9879 additions and 1940 deletions
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relay/doc.go Normal file
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//Package main
/*
The `relay` package contains the implementation of the Relay server and client. The Relay server can be used to relay
messages between peers on a single network channel. In this implementation the transport layer is the WebSocket
protocol.
Between the server and client communication has been design a custom protocol and message format. These messages are
transported over the WebSocket connection. Optionally the server can use TLS to secure the communication.
The service can support multiple Relay server instances. For this purpose the peers must know the server instance URL.
This URL will be sent to the target peer to choose the common Relay server for the communication via Signal service.
*/
package main