[PR #7022] [MERGED] [client, android] Reuse the persisted configuration when enrolling #29450

New Issue

saavagebueno · 2026-08-05T08:08:05-04:00

saavagebueno commented

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

📋 Pull Request Information

Original PR: https://github.com/netbirdio/netbird/pull/7022
Author: @camiloariza
Created: 8/1/2026
Status: ✅ Merged
Merged: 8/3/2026
Merged by: @pappz

Base: main ← Head: fix/android-auth-reuse-persisted-config

📝 Commits (2)

9ae061b client/android: reuse the persisted configuration when enrolling
468707c Merge branch 'main' into fix/android-auth-reuse-persisted-config

📊 Changes

2 files changed (+60 additions, -1 deletions)

View changed files

📝 client/android/login.go (+9 -1)
➕ client/android/login_test.go (+51 -0)

📄 Description

Describe your changes

NewAuth builds a fresh in-memory configuration on every call, which means a new WireGuard key each time. The peer registers under that key and the key is written out, so any peer registered by an earlier call is orphaned on the server — a client that enrols twice leaves two entries and owns neither.

It also breaks the enrol-then-run sequence. RunWithoutLogin reloads the configuration from disk through UpdateOrCreateConfig, so the identity that registered is not necessarily the identity that runs, and the management stream rejects it:

failed to login to Management Service: rpc error: code = PermissionDenied
desc = no peer auth method provided, please use a setup key or interactive SSO login

followed by a panic in ConnectClient.run.

How it was found

Embedding the Android client in an application that enrols with a setup key and then runs. Eight orphaned peers accumulated on a self-hosted management server before the cause was clear, because every restart registered a new one.

The change

NewAuth passes ConfigPath and uses UpdateOrCreateConfig, so an existing configuration is reused and one is only created when absent. A caller wanting a fresh identity can delete the file — which is what "forget this account" already does.

Test

TestNewAuth_ReusesPersistedIdentity fails on the current code:

--- FAIL: TestNewAuth_ReusesPersistedIdentity (0.00s)
    login_test.go:33: private key changed between calls: a second enrolment would orphan the peer registered by the first

and passes with the fix. TestNewAuth_CreatesConfigWhenAbsent covers the first-enrolment path being unchanged. Both run in client/android on Linux.

Per CONTRIBUTING, opening directly as a bug fix rather than raising an issue first.

Issue ticket number and link

NET-1465

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)
I ran and tested this change locally — I did not rely on CI to find out whether it works
This PR has a single purpose (not a fix + refactor + feature in one)
This change is a trivial fix, OR it links an issue the NetBird team agreed on beforehand. Changes to the public API, gRPC protocols, functionality behavior, CLI / service flags, or new features always need that agreement first. See CONTRIBUTING.md.

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): the API reference is generated from the OpenAPI spec, which this PR updates in-repo.

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/__

_{🔄 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/7022 **Author:** [@camiloariza](https://github.com/camiloariza) **Created:** 8/1/2026 **Status:** ✅ Merged **Merged:** 8/3/2026 **Merged by:** [@pappz](https://github.com/pappz) **Base:** `main` ← **Head:** `fix/android-auth-reuse-persisted-config` --- ### 📝 Commits (2) - [`9ae061b`](https://github.com/netbirdio/netbird/commit/9ae061b4eeaaecb55d7aa620c21765d3fcbe747e) client/android: reuse the persisted configuration when enrolling - [`468707c`](https://github.com/netbirdio/netbird/commit/468707c29129eb5e6ac7a9cde1ada70436ae40aa) Merge branch 'main' into fix/android-auth-reuse-persisted-config ### 📊 Changes **2 files changed** (+60 additions, -1 deletions) <details> <summary>View changed files</summary> 📝 `client/android/login.go` (+9 -1) ➕ `client/android/login_test.go` (+51 -0) </details> ### 📄 Description ## Describe your changes NewAuth builds a fresh in-memory configuration on every call, which means a new WireGuard key each time. The peer registers under that key and the key is written out, so any peer registered by an earlier call is orphaned on the server — a client that enrols twice leaves two entries and owns neither. It also breaks the enrol-then-run sequence. `RunWithoutLogin` reloads the configuration from disk through `UpdateOrCreateConfig`, so the identity that registered is not necessarily the identity that runs, and the management stream rejects it: ``` failed to login to Management Service: rpc error: code = PermissionDenied desc = no peer auth method provided, please use a setup key or interactive SSO login ``` followed by a panic in `ConnectClient.run`. ### How it was found Embedding the Android client in an application that enrols with a setup key and then runs. Eight orphaned peers accumulated on a self-hosted management server before the cause was clear, because every restart registered a new one. ### The change `NewAuth` passes `ConfigPath` and uses `UpdateOrCreateConfig`, so an existing configuration is reused and one is only created when absent. A caller wanting a fresh identity can delete the file — which is what "forget this account" already does. ### Test `TestNewAuth_ReusesPersistedIdentity` fails on the current code: ``` --- FAIL: TestNewAuth_ReusesPersistedIdentity (0.00s) login_test.go:33: private key changed between calls: a second enrolment would orphan the peer registered by the first ``` and passes with the fix. `TestNewAuth_CreatesConfigWhenAbsent` covers the first-enrolment path being unchanged. Both run in `client/android` on Linux. Per CONTRIBUTING, opening directly as a bug fix rather than raising an issue first. ## Issue ticket number and link [NET-1465](https://linear.app/netbird/issue/NET-1465/agent-network-rest-api-settings-defaults-bootstrap-via-put-provider) ## 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) - [ ] I ran and tested this change locally — I did not rely on CI to find out whether it works - [ ] This PR has a single purpose (not a fix + refactor + feature in one) - [ ] This change is a trivial fix, **OR** it links an issue the NetBird team agreed on beforehand. Changes to the public API, gRPC protocols, functionality behavior, CLI / service flags, or new features always need that agreement first. See [CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#ticket-first-pr-second). > 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): the API reference is generated from the OpenAPI spec, which this PR updates in-repo. ### 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/__ --- <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 08:08:05 -04:00

saavagebueno closed this issue

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

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Reference: DYNR/netbird#29450