[PR #5174] [MERGED] [client] Refactor/optimise raw socket headers #22264

New Issue

saavagebueno · 2026-08-05T06:05:45-04:00

saavagebueno commented

2026-08-05 06:05:45 -04:00

📋 Pull Request Information

Original PR: https://github.com/netbirdio/netbird/pull/5174
Author: @pappz
Created: 1/24/2026
Status: ✅ Merged
Merged: 1/28/2026
Merged by: @pappz

Base: main ← Head: refactor/optimise-raw-socket-headers

📝 Commits (7)

c8fffe0 Add IPv6 support to UDP WireGuard proxy
7cb6947 Add IPv6 support to eBPF WireGuard proxy
4c04fe8 Refactor eBPF WireGuard proxy to use reusable PacketHeaders for efficient packet handling
57d02f6 Deduplicate local constants and serialization options in eBPF proxy and wrapper.
03fe093 Merge branch 'main' into refactor/optimise-raw-socket-headers
b01df80 Validate raw connection availability in eBPF WireGuard proxy before packet handling.
26650ab Ensure raw connection consistency in eBPF proxy Work method

📊 Changes

2 files changed (+147 additions, -78 deletions)

View changed files

📝 client/iface/wgproxy/ebpf/proxy.go (+0 -72)
📝 client/iface/wgproxy/ebpf/wrapper.go (+147 -6)

📄 Description

Describe your changes

Pre-create and reuse packet headers to eliminate per-packet allocations.

Issue ticket number and link

Stack

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)

By submitting this pull request, you confirm that you have read and agree to the terms of the Contributor License Agreement.

Documentation

Select exactly one:

I added/updated documentation for this change
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
- Improved packet header management and per-endpoint header preparation for more reliable UDP packet transmission.
- Enhanced IPv4/IPv6 raw socket selection and packet serialization for more consistent sending behavior.
- Removed legacy packet serialization path, simplifying and streamlining internal transmission flow.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/netbirdio/netbird/pull/5174 **Author:** [@pappz](https://github.com/pappz) **Created:** 1/24/2026 **Status:** ✅ Merged **Merged:** 1/28/2026 **Merged by:** [@pappz](https://github.com/pappz) **Base:** `main` ← **Head:** `refactor/optimise-raw-socket-headers` --- ### 📝 Commits (7) - [`c8fffe0`](https://github.com/netbirdio/netbird/commit/c8fffe0a758459f2fcded3d7e536f17f058e5877) Add IPv6 support to UDP WireGuard proxy - [`7cb6947`](https://github.com/netbirdio/netbird/commit/7cb6947babafb422bf0a5af46362196704769097) Add IPv6 support to eBPF WireGuard proxy - [`4c04fe8`](https://github.com/netbirdio/netbird/commit/4c04fe8362b218282447913a706860a8e7829a21) Refactor eBPF WireGuard proxy to use reusable PacketHeaders for efficient packet handling - [`57d02f6`](https://github.com/netbirdio/netbird/commit/57d02f6c2c0c117a29722399cfbe7aa20fc81c51) Deduplicate local constants and serialization options in eBPF proxy and wrapper. - [`03fe093`](https://github.com/netbirdio/netbird/commit/03fe093568417635a6c8623ea71aabe91911b342) Merge branch 'main' into refactor/optimise-raw-socket-headers - [`b01df80`](https://github.com/netbirdio/netbird/commit/b01df80ab76d9d9cc6a1c6a2b78e77c4953dbb23) Validate raw connection availability in eBPF WireGuard proxy before packet handling. - [`26650ab`](https://github.com/netbirdio/netbird/commit/26650abe73ce7a263ab69df4f527bada687e0439) Ensure raw connection consistency in eBPF proxy Work method ### 📊 Changes **2 files changed** (+147 additions, -78 deletions) <details> <summary>View changed files</summary> 📝 `client/iface/wgproxy/ebpf/proxy.go` (+0 -72) 📝 `client/iface/wgproxy/ebpf/wrapper.go` (+147 -6) </details> ### 📄 Description ## Describe your changes Pre-create and reuse packet headers to eliminate per-packet allocations. ## Issue ticket number and link ## Stack  ### Checklist - [ ] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [x] 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** * Improved packet header management and per-endpoint header preparation for more reliable UDP packet transmission. * Enhanced IPv4/IPv6 raw socket selection and packet serialization for more consistent sending behavior. * Removed legacy packet serialization path, simplifying and streamlining internal transmission flow. <sub>✏️ Tip: You can customize this high-level summary in your review settings.</sub>  --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

saavagebueno added the pull-request label 2026-08-05 06:05:45 -04:00

saavagebueno closed this issue

2026-08-05 06:05:46 -04:00

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Reference: DYNR/netbird#22264