[PR #902] [MERGED] Feat fake dns address #13126

New Issue

saavagebueno · 2026-08-05T02:07:31-04:00

saavagebueno commented

2026-08-05 02:07:31 -04:00

📋 Pull Request Information

Original PR: https://github.com/netbirdio/netbird/pull/902
Author: @gigovich
Created: 5/25/2023
Status: ✅ Merged
Merged: 6/8/2023
Merged by: @gigovich

Base: main ← Head: feat-fake-dns-address

📝 Commits (10+)

4e09986 WIP: Add DNS packet catch hook for filtering
dad0a3c Full chain code for fake DNS feature, not tested.
ab31251 Write DNS response to Device
8e66c0b Send UDP packet with DNS info as response.
ddde7ae Add extra test for NextRead
0e3e06e Full working state
5275f6e Add UDP packet hook test
9869262 Add unit test for DNS response writer.
5bf4e2b Remove DNS hook
dddfd27 Right handle DNS update from management

📊 Changes

17 files changed (+721 additions, -57 deletions)

View changed files

📝 client/firewall/uspfilter/rule.go (+2 -0)
📝 client/firewall/uspfilter/uspfilter.go (+63 -2)
📝 client/firewall/uspfilter/uspfilter_test.go (+146 -14)
📝 client/internal/acl/manager.go (+1 -1)
📝 client/internal/acl/manager_test.go (+2 -2)
📝 client/internal/acl/mocks/iface_mapper.go (+6 -6)
➕ client/internal/dns/response_writer.go (+103 -0)
➕ client/internal/dns/response_writer_test.go (+93 -0)
📝 client/internal/dns/server_nonandroid.go (+90 -4)
➕ client/internal/dns/server_nonandroid_test.go (+31 -0)
📝 client/internal/dns/server_test.go (+2 -2)
📝 iface/device_wrapper.go (+11 -2)
📝 iface/device_wrapper_test.go (+16 -10)
📝 iface/iface.go (+23 -4)
➕ iface/mocks/README.md (+7 -0)
📝 iface/mocks/filter.go (+38 -10)
➕ iface/mocks/iface/mocks/filter.go (+87 -0)

📄 Description

Describe your changes

Add DNS packet catch hook.
Rename SetFiltering to SetFilter.
Add DNS response writer.
Handle userspace network in fake DNS server.

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/902 **Author:** [@gigovich](https://github.com/gigovich) **Created:** 5/25/2023 **Status:** ✅ Merged **Merged:** 6/8/2023 **Merged by:** [@gigovich](https://github.com/gigovich) **Base:** `main` ← **Head:** `feat-fake-dns-address` --- ### 📝 Commits (10+) - [`4e09986`](https://github.com/netbirdio/netbird/commit/4e09986d2cfec019a285eee618f1d575f306e872) WIP: Add DNS packet catch hook for filtering - [`dad0a3c`](https://github.com/netbirdio/netbird/commit/dad0a3cc38d7d2277ea3153578f04ec384ee7b2d) Full chain code for fake DNS feature, not tested. - [`ab31251`](https://github.com/netbirdio/netbird/commit/ab31251ed9924eca6539eb7993a65ca02b71e854) Write DNS response to Device - [`8e66c0b`](https://github.com/netbirdio/netbird/commit/8e66c0b01737cd7e46896988fb0ec313b2a391e8) Send UDP packet with DNS info as response. - [`ddde7ae`](https://github.com/netbirdio/netbird/commit/ddde7aeba2d9632d2353fd7055c709c01501e225) Add extra test for NextRead - [`0e3e06e`](https://github.com/netbirdio/netbird/commit/0e3e06e9e015c3e63bb82d16add30acfb2291a83) Full working state - [`5275f6e`](https://github.com/netbirdio/netbird/commit/5275f6e6fba917f5fdf641941e1f767ac486b1bf) Add UDP packet hook test - [`9869262`](https://github.com/netbirdio/netbird/commit/98692624a73c9df4224a3b893bca10c8f0790834) Add unit test for DNS response writer. - [`5bf4e2b`](https://github.com/netbirdio/netbird/commit/5bf4e2b59548a7356081a26b5ccfbe2b4beb2813) Remove DNS hook - [`dddfd27`](https://github.com/netbirdio/netbird/commit/dddfd27ba760c8edf864345bbcfad17f9d227509) Right handle DNS update from management ### 📊 Changes **17 files changed** (+721 additions, -57 deletions) <details> <summary>View changed files</summary> 📝 `client/firewall/uspfilter/rule.go` (+2 -0) 📝 `client/firewall/uspfilter/uspfilter.go` (+63 -2) 📝 `client/firewall/uspfilter/uspfilter_test.go` (+146 -14) 📝 `client/internal/acl/manager.go` (+1 -1) 📝 `client/internal/acl/manager_test.go` (+2 -2) 📝 `client/internal/acl/mocks/iface_mapper.go` (+6 -6) ➕ `client/internal/dns/response_writer.go` (+103 -0) ➕ `client/internal/dns/response_writer_test.go` (+93 -0) 📝 `client/internal/dns/server_nonandroid.go` (+90 -4) ➕ `client/internal/dns/server_nonandroid_test.go` (+31 -0) 📝 `client/internal/dns/server_test.go` (+2 -2) 📝 `iface/device_wrapper.go` (+11 -2) 📝 `iface/device_wrapper_test.go` (+16 -10) 📝 `iface/iface.go` (+23 -4) ➕ `iface/mocks/README.md` (+7 -0) 📝 `iface/mocks/filter.go` (+38 -10) ➕ `iface/mocks/iface/mocks/filter.go` (+87 -0) </details> ### 📄 Description ## Describe your changes Add DNS packet catch hook. Rename SetFiltering to SetFilter. Add DNS response writer. Handle userspace network in fake DNS server. ## 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 - [ ] 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 02:07:31 -04:00

saavagebueno closed this issue

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

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Reference: DYNR/netbird#13126