[PR #836] [MERGED] Userspace packet filtering #13058

New Issue

saavagebueno · 2026-08-05T02:07:22-04:00

saavagebueno commented

2026-08-05 02:07:22 -04:00

📋 Pull Request Information

Original PR: https://github.com/netbirdio/netbird/pull/836
Author: @gigovich
Created: 5/5/2023
Status: ✅ Merged
Merged: 5/18/2023
Merged by: @gigovich

Base: feat-linux-firewall-support ← Head: feat-linux-firewall-support-bind

📝 Commits (10+)

a41db39 Add TUN injector interface
4778219 WIP userspace filters
1d335b2 Working state of userspace firewall
1bd9ebe Fix tests for userspace filtering. Refactor ACL manager
30f2eaf Fix dependencies
46b06aa Add wrappers fot TUN to Windows and Android
bcc1d4f Linter fix
0bca752 Fix Codacy issue and build issue
0f2f28a Fix Android build
3c59aaf Fix rule delete in uspfilter. Add common unit tests for uspfilter.

📊 Changes

25 files changed (+1482 additions, -181 deletions)

View changed files

📝 client/firewall/firewall.go (+2 -1)
📝 client/firewall/iptables/manager_linux.go (+135 -50)
📝 client/firewall/iptables/manager_linux_test.go (+11 -11)
📝 client/firewall/iptables/rule.go (+1 -0)
📝 client/firewall/nftables/manager_linux.go (+82 -49)
📝 client/firewall/nftables/manager_linux_test.go (+4 -3)
➕ client/firewall/uspfilter/rule.go (+27 -0)
➕ client/firewall/uspfilter/uspfilter.go (+288 -0)
➕ client/firewall/uspfilter/uspfilter_test.go (+169 -0)
📝 client/internal/acl/manager.go (+73 -47)
📝 client/internal/acl/manager_create.go (+15 -2)
📝 client/internal/acl/manager_create_linux.go (+17 -8)
📝 client/internal/acl/manager_test.go (+16 -6)
➕ client/internal/acl/mocks/iface_mapper.go (+77 -0)
📝 client/internal/engine.go (+1 -1)
📝 go.mod (+2 -1)
📝 go.sum (+2 -0)
➕ iface/device_wrapper.go (+90 -0)
➕ iface/device_wrapper_test.go (+216 -0)
📝 iface/iface.go (+15 -0)

...and 5 more files

📄 Description

Describe your changes

Add TUN device wrapper and userspace packet filter to use it as firewall manager for ACL controller.

Issue ticket number and link

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)
Extended the README / documentation, if necessary

_{🔄 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/836 **Author:** [@gigovich](https://github.com/gigovich) **Created:** 5/5/2023 **Status:** ✅ Merged **Merged:** 5/18/2023 **Merged by:** [@gigovich](https://github.com/gigovich) **Base:** `feat-linux-firewall-support` ← **Head:** `feat-linux-firewall-support-bind` --- ### 📝 Commits (10+) - [`a41db39`](https://github.com/netbirdio/netbird/commit/a41db3938f6cb810e26d215413dd698bac4745fa) Add TUN injector interface - [`4778219`](https://github.com/netbirdio/netbird/commit/4778219d8bd6564c5c27c7345a596512a057f750) WIP userspace filters - [`1d335b2`](https://github.com/netbirdio/netbird/commit/1d335b25ee362a44b7c6af985e0ebc3a68534811) Working state of userspace firewall - [`1bd9ebe`](https://github.com/netbirdio/netbird/commit/1bd9ebebcca1bb627e2947c68c399dba1c6791a2) Fix tests for userspace filtering. Refactor ACL manager - [`30f2eaf`](https://github.com/netbirdio/netbird/commit/30f2eaff3d1ab0df31fd1e92b2bb60c3ab309e04) Fix dependencies - [`46b06aa`](https://github.com/netbirdio/netbird/commit/46b06aae239d67266cad82290969f2b3dc215752) Add wrappers fot TUN to Windows and Android - [`bcc1d4f`](https://github.com/netbirdio/netbird/commit/bcc1d4f85ba8d2135069794fe350f708ae0569d0) Linter fix - [`0bca752`](https://github.com/netbirdio/netbird/commit/0bca752e5db5def0b299cf1b01b371402775e947) Fix Codacy issue and build issue - [`0f2f28a`](https://github.com/netbirdio/netbird/commit/0f2f28a9b7f7889d1ba36531c850c204aadd8166) Fix Android build - [`3c59aaf`](https://github.com/netbirdio/netbird/commit/3c59aaffbf89bca7a1427db53a6cd70a22c4c5b4) Fix rule delete in uspfilter. Add common unit tests for uspfilter. ### 📊 Changes **25 files changed** (+1482 additions, -181 deletions) <details> <summary>View changed files</summary> 📝 `client/firewall/firewall.go` (+2 -1) 📝 `client/firewall/iptables/manager_linux.go` (+135 -50) 📝 `client/firewall/iptables/manager_linux_test.go` (+11 -11) 📝 `client/firewall/iptables/rule.go` (+1 -0) 📝 `client/firewall/nftables/manager_linux.go` (+82 -49) 📝 `client/firewall/nftables/manager_linux_test.go` (+4 -3) ➕ `client/firewall/uspfilter/rule.go` (+27 -0) ➕ `client/firewall/uspfilter/uspfilter.go` (+288 -0) ➕ `client/firewall/uspfilter/uspfilter_test.go` (+169 -0) 📝 `client/internal/acl/manager.go` (+73 -47) 📝 `client/internal/acl/manager_create.go` (+15 -2) 📝 `client/internal/acl/manager_create_linux.go` (+17 -8) 📝 `client/internal/acl/manager_test.go` (+16 -6) ➕ `client/internal/acl/mocks/iface_mapper.go` (+77 -0) 📝 `client/internal/engine.go` (+1 -1) 📝 `go.mod` (+2 -1) 📝 `go.sum` (+2 -0) ➕ `iface/device_wrapper.go` (+90 -0) ➕ `iface/device_wrapper_test.go` (+216 -0) 📝 `iface/iface.go` (+15 -0) _...and 5 more files_ </details> ### 📄 Description ## Describe your changes Add TUN device wrapper and userspace packet filter to use it as firewall manager for ACL controller. ## Issue ticket number and link ### Checklist - [ ] Is it a bug fix - [ ] Is a typo/documentation fix - [x] Is a feature enhancement - [x] It is a refactor - [x] Created tests that fail without the change (if possible) - [ ] Extended the README / documentation, if necessary --- <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 02:07:22 -04:00

saavagebueno closed this issue

2026-08-05 03:07:54 -04:00

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Reference: DYNR/netbird#13058