[PR #5770] [relay] Replace net.Conn with context-aware Conn interface #26734

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saavagebueno · 2026-08-05T07:07:44-04:00

saavagebueno commented

2026-08-05 07:07:44 -04:00

Original Pull Request: https://github.com/netbirdio/netbird/pull/5770

State: closed
Merged: Yes

Describe your changes

Replace net.Conn with context-aware Conn interface

Introduce a listener.Conn interface with context-based Read/Write methods, replacing net.Conn throughout the relay server. This enables proper timeout propagation (e.g. handshake timeout) without goroutine-based workarounds and removes unused LocalAddr/SetDeadline methods from WS and QUIC conns.

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Checklist

Is it a bug fix
Is a typo/documentation fix
Is a feature enhancement
It is a refactor
Created tests that fail without the change (if possible)

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Documentation

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I added/updated documentation for this change
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Summary by CodeRabbit

Refactor
- Unified connection abstraction across transports and made I/O context-aware for better cancellation and resource management.
- Simplified QUIC and WebSocket implementations to reduce internal deadlines and local-address handling.
Bug Fixes
- Added a 10s handshake timeout to prevent hung relay connections and improve reliability.

**Original Pull Request:** https://github.com/netbirdio/netbird/pull/5770 **State:** closed **Merged:** Yes --- ## Describe your changes Replace net.Conn with context-aware Conn interface Introduce a listener.Conn interface with context-based Read/Write methods, replacing net.Conn throughout the relay server. This enables proper timeout propagation (e.g. handshake timeout) without goroutine-based workarounds and removes unused LocalAddr/SetDeadline methods from WS and QUIC conns. ## Issue ticket number and link ## Stack  ### Checklist - [x] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md). ## Documentation Select exactly one: - [ ] I added/updated documentation for this change - [x] Documentation is **not needed** for this change (explain why) ### Docs PR URL (required if "docs added" is checked) Paste the PR link from https://github.com/netbirdio/docs here: https://github.com/netbirdio/docs/pull/__  ## Summary by CodeRabbit * **Refactor** * Unified connection abstraction across transports and made I/O context-aware for better cancellation and resource management. * Simplified QUIC and WebSocket implementations to reduce internal deadlines and local-address handling. * **Bug Fixes** * Added a 10s handshake timeout to prevent hung relay connections and improve reliability.

saavagebueno added the pull-request label 2026-08-05 07:07:44 -04:00

saavagebueno closed this issue

2026-08-05 07:07:44 -04:00

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Reference: DYNR/netbird#26734