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Author SHA1 Message Date
Viktor Liu
8972f2a270 Authorize daemon IPC callers by their local identity 2026-07-29 19:47:48 +02:00
Pascal Fischer
0b7e6a9f46 [signal] make pprof configurable (#6963) 2026-07-29 16:54:01 +02:00
Viktor Liu
f2c1070f95 [client] Fix UI crash on Windows builds without dark-mode support (#6958) 2026-07-29 13:52:18 +02:00
Brandon Hopkins
df39c2b254 [infrastructure] Deprecate legacy Dex and Zitadel getting-started scripts (#6952)
## Describe your changes

Retire the legacy Dex and Zitadel installation scripts by replacing
their implementations with compatibility notices that:

- Exit unsuccessfully before making any system changes.
- Direct new deployments to `getting-started.sh` and the self-hosting
quickstart.
- Explain that the current installer uses NetBird's embedded Dex-based
identity provider.
- Direct users to configure Zitadel through the NetBird Dashboard or
follow the advanced guide for a standalone identity-provider deployment.
- Clarify that Dex support, Zitadel support, and existing deployments
are not deprecated.
- Announce that the compatibility notices will be removed in NetBird
v0.80.

Replace the legacy Zitadel provisioning workflow with CI checks that
verify both scripts fail, write their notices to stderr, and include the
expected documentation links and removal version.

## Issue ticket number and link

No single issue tracks this deprecation.

Related to:

- Legacy installer failures: #4980, #4698, #3566, #3010, #2834, #2094,
  #2046, and #1966.
- Legacy installer enhancement requests: #4510 and #1785.

## Stack

Standalone PR based on `main`.

<!-- branch-stack -->

### Checklist
- [ ] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] It is a refactor
- [x] Created tests that fail without the change (if possible)
- [x] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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 because the
compatibility notices link to the existing quickstart,
identity-provider, and advanced deployment documentation.

### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:

N/A

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

- **Breaking Changes**
- Retired the legacy Dex and Zitadel getting-started installation
scripts.
- These scripts now exit with an explanatory deprecation message and
direct users to the current setup flow and documentation.
- Existing workflows now verify that the retired scripts fail as
expected and provide the appropriate migration guidance.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-29 12:20:43 +02:00
Pascal Fischer
dd2bdc0de3 [management] explicit accountID check when deleting a user (#6944) 2026-07-28 18:34:55 +02:00
Zoltan Papp
44fef45c2f [client] Export peer details for Android (#6925)
## Describe your changes

Eexport peer details for Android

## Issue ticket number and link

## Stack

<!-- branch-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)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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/__

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **New Features**
* Enhanced Android peer details with latency, data transfer totals,
connection timestamps, handshake information, relay and security status,
and ICE connection details.
* Added formatted latency values to support clearer connection-quality
indicators.
* **Bug Fixes**
* Peer lists now refresh WireGuard statistics before displaying transfer
and handshake information, ensuring current values are shown.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 18:13:22 +02:00
Riccardo Manfrin
3d1f209ea3 [client] parse NB_LAZY_CONN_INACTIVITY_THRESHOLD as a Go duration (#6947)
## Describe your changes

`NB_LAZY_CONN_INACTIVITY_THRESHOLD` was parsed with `strconv.Atoi`, i.e.
as a bare
integer number of minutes. The documentation, however, states it takes a
Go duration
(e.g. `30m`, `1h`). As a result any documented value such as `30m` or
`5m` failed to
parse and **silently fell back to the 15m default**, so the setting
appeared to have
no effect.

`inactivityThresholdEnv()` now parses the value with
`time.ParseDuration`, matching
the docs. A bare integer is still accepted as a number of minutes for
backwards
compatibility, and an unparseable value logs a warning and falls back to
the default.

Added `TestInactivityThresholdEnv` covering Go-duration values
(`30m`/`1h`/`90s`), the
bare-integer minutes fallback, and zero/negative/garbage inputs.

## Issue ticket number and link

N/A
2026-07-28 18:12:49 +02:00
Zoltan Papp
2ef457be95 [client] Unify route selection in the route manager (#6928)
## Describe your changes

Move route select/deselect handling from the daemon server into exported
routemanager methods (SelectRoutes, DeselectRoutes, SelectAllRoutes,
DeselectAllRoutes) so every consumer shares one implementation: v4/v6
exit-pair expansion, exit-node mutual exclusion, and selection
triggering.

Previously the exit-node exclusivity lived only in the daemon's
SelectNetworks RPC, so the Android and iOS bindings could leave two exit
nodes selected until the next network map reconciliation. Both bindings
now call the shared manager methods and enforce exclusivity at toggle
time, matching the desktop behavior.

## Issue ticket number and link

## Stack

<!-- branch-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)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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/__

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Route selection/deselection is now handled through shared
route-manager APIs for both individual routes and “all routes”.
* Exit-node selections automatically enforce mutual exclusivity while
keeping non-exit routes unaffected.
* **Bug Fixes**
* Unknown or unavailable route IDs now return errors, and exclusivity is
preserved even when some route IDs fail.
* **Tests**
* Added route-selection tests covering exclusivity (including
IPv4/IPv6), select-all behavior, partial errors, and invalid IDs.
* **Refactor / Chores**
* Simplified Android, iOS, and server routing flows to delegate to the
shared manager; updated mocks and removed redundant routing command
logic/dependencies.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 17:39:37 +02:00
Zoltan Papp
63c320b6a9 [client] Serialize iOS tunnel reconfiguration callbacks (#6870)
On iOS the tunnel reconfiguration (setTunnelNetworkSettings) was driven
from three independent Go paths without serialization: route prefix
updates via the route notifier's own delivery loop, interface IP/IPv6
set synchronously from the engine start goroutine, and DNS config
applied from the DNS apply chain through a separate Swift object. The
three sources mutated the shared Swift settings-manager state
concurrently and triggered overlapping updateTunnel() calls, losing or
half-applying route and DNS settings.

Introduce client/internal/tunnelnotifier: a single notifier that
implements both listener.NetworkChangeListener and dns.IosDnsManager,
queues all four callbacks (OnNetworkChanged, SetInterfaceIP,
SetInterfaceIPv6, ApplyDns) in one FIFO and delivers them one-by-one
from a single goroutine, so calls into Swift never overlap and arrive in
order. RunOniOS wraps the two Swift objects into the notifier and closes
it after the run loop exits.

The route notifier keeps its prefix dedup but delegates delivery to the
shared notifier instead of maintaining its own queue and loop; the dedup
check and the enqueue stay under one mutex so queue order matches
state-update order. Setting the interface IP becomes asynchronous, which
is safe: on iOS wgInterface.Create() only uses the TunFd, and the FIFO
preserves the IP -> routes/DNS relative order.

The package is build-tag free so the unit tests run on any platform
under -race. Android is unaffected: it receives all settings atomically
in one configureInterface call and serializes TUN rebuilds on a single
handler thread.

## Describe your changes

## Issue ticket number and link

## Stack

<!-- branch-stack -->

### Checklist
- [x] 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)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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/__

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Improved iOS tunnel networking by coordinating network, interface,
route, and DNS updates through a unified notifier.
* Updated iOS behavior so route/prefix changes are applied immediately
instead of via queued/background delivery.

* **Bug Fixes**
* Improved reliability by ensuring network and DNS-related callbacks are
invoked in order without overlap.
* Ensured pending updates are drained and handled correctly during
shutdown.

* **Tests**
* Added coverage for FIFO ordering, non-overlapping callback execution,
interleaved DNS/route updates, and graceful shutdown behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 16:51:01 +02:00
Stefan Fast
4acbe2670a [client] Escape dots in interface names for sysctl configuration (#6930) 2026-07-28 16:24:30 +02:00
Zoltan Papp
0fb4c8c423 [client] Build UI release binaries with the production tag (#6898)
## Describe your changes

The goreleaser UI configs passed no build tags, so released netbird-ui
binaries were built on the Wails !production path: DevTools enabled,
browser context menu forced on, and FRONTEND_DEVSERVER_URL still
honored.

## Issue ticket number and link

## Stack

<!-- branch-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)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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:

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **Chores**
* Updated release build configurations to mark Linux, Windows, and macOS
UI builds as production releases.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 16:23:09 +02:00
Zoltan Papp
42e45ff9f9 [client] Expose RenameProfile in the Android profile manager binding (#6926)
## Describe your changes
Expose RenameProfile in the Android profile manager binding

## Issue ticket number and link

## Stack

<!-- branch-stack -->

### Checklist
- [ ] Is it a bug fix
- [ ] Is a typo/documentation fix
- [x] Is a feature enhancement
- [ ] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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/__

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **New Features**
  * Added the ability to rename Android profiles.
  * Rename operations now provide clear success or failure feedback.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 16:22:48 +02:00
Viktor Liu
9269b56386 [management] Read reverse-proxy service and target columns in Postgres path (#6886) 2026-07-28 14:46:19 +02:00
Viktor Liu
b3f9b82442 [management] Force routing-peer DNS resolution for reverse-proxy domain targets (#6872) 2026-07-28 14:45:57 +02:00
Riccardo Manfrin
8a43f4f943 [client] fix build: add ReapplyMatching to dedicated AllowedIPsRefCounter (#6935)
## Describe your changes

#6799 turned `AllowedIPsRefCounter` from an alias of the generic
`Counter` into a dedicated peer-aware type. A change merged in parallel
— `DefaultManager.ReconcilePeerAllowedIPs` (lazy-connection idle→wake
reconvergence) — calls `allowedIPsRefCounter.ReapplyMatching`, which
only existed on the generic `Counter`. Each PR built alone; the merged
`main` did not:

```
client/internal/routemanager/manager.go: m.allowedIPsRefCounter.ReapplyMatching undefined
```

Add `ReapplyMatching(pred, apply)` to the dedicated type, matching the
generic contract (keyed on the active/`Out` peer): it re-applies every
prefix whose currently installed peer satisfies `pred`, skipping
prefixes with no active peer (reconciled by the next
Increment/Decrement). Also update `reconcile_test.go` to construct the
counter via `refcounter.NewAllowedIPs` — the generic `refcounter.New`
return value is no longer assignable to the dedicated type.

Verified with `cd client && CGO_ENABLED=1 go build .` (the failing CI
step) and the `TestReconcilePeerAllowedIPs` / refcounter / routemanager
tests.

## Issue ticket number and link

No public issue — fixes a `main` build break from a semantic merge
conflict between #6799 and the `ReconcilePeerAllowedIPs` change. Failing
run:
https://github.com/netbirdio/netbird/actions/runs/30330882389/job/90185591366

## Stack

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### Checklist
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- [ ] Is a typo/documentation fix
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- [ ] 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)

Internal build fix restoring a method on the AllowedIPs refcounter. No
public API, CLI, config, or behavior change.

### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:

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## Summary by CodeRabbit

* **Bug Fixes**
* Improved route reconciliation so all applicable allowed IP prefixes
are reliably re-applied for the correct peer.
* Prevented reconciliation from affecting routes assigned to other
peers.
* Improved handling of errors encountered while restoring multiple
routes, providing more consistent results.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 16:42:57 +09:00
Riccardo Manfrin
2f268c8141 [client] fix stale routing peer on overlapping-prefix network removal (#6799)
## Describe your changes

The AllowedIPs reference counter
([refcounter/types.go#L9](https://github.com/netbirdio/netbird/blob/e1a24376a/client/internal/routemanager/refcounter/types.go#L9))
was keyed only by prefix and stored a single active peer set by
the first registrar, never swapped. When two networks advertised the
same prefix via different routing peers, removing the one whose peer was
installed in WireGuard left the prefix pointing at the removed peer
instead of the
surviving one — traffic kept flowing to the old peer until a manual
`netbird down/up`.

Made the AllowedIPs counter peer-aware: it tracks a per-peer reference
count per prefix plus the installed peer, and swaps WireGuard to a
surviving peer when the active one releases its last reference (removes
the prefix when
none remain). `Decrement` now takes the peer key so the exact
incremented peer is released; the static handler records its selected
routing peer like the dynamic and DNS handlers already did. The generic
`Counter` (routes,
  exclusion, ipset) is unchanged.

  ## Issue ticket number and link

No public issue — reported internally (routes not updating without
`netbird down/up` when two networks share a subnet). Root cause is the
prefix-only key at

[refcounter/types.go#L9](https://github.com/netbirdio/netbird/blob/e1a24376a/client/internal/routemanager/refcounter/types.go#L9).

  ## Stack

  <!-- branch-stack -->

  ### Checklist
  - [x] Is it a bug fix
  - [ ] Is a typo/documentation fix
  - [ ] Is a feature enhancement
  - [ ] It is a refactor
  - [x] 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)

Internal client-side routing fix. No public API, CLI, or config change —
only the WireGuard AllowedIPs hand-off when overlapping-prefix networks
are removed.

  ### Docs PR URL (required if "docs added" is checked)
  Paste the PR link from https://github.com/netbirdio/docs here:

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## Summary by CodeRabbit

* **Bug Fixes**
* Improved routing behavior when multiple peers share the same Allowed
IP by making Allowed IP reference tracking peer-aware.
* Allowed IPs now correctly decrement using the active peer key and
transfer to another surviving active peer when the current peer is
removed.
* Prevented stale routing and incorrect reference cleanup during route
and DNS-driven teardown.

* **Tests**
* Added/extended coverage for peer handoffs, repeated references,
non-active peer removal, flushing behavior, and self-healing after swap
add/remove failures.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 14:10:58 +09:00
Zoltan Papp
e3c4128164 [client] Exit GUI immediately on Windows session end (#6878)
Wails v3 runs the full app teardown synchronously inside WM_ENDSESSION,
overrunning the 5s end-session budget and triggering the "app is
preventing shutdown" screen with a forced kill. Intercept
WM_QUERYENDSESSION/WM_ENDSESSION and exit at once instead, and suppress
error dialogs, toasts, and the hide-on-close hooks once shutdown or a
tray quit has begun.

## Describe your changes

## Issue ticket number and link

## Stack

<!-- branch-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)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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:

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- [x] Documentation is **not needed** for this change (explain why)

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Paste the PR link from https://github.com/netbirdio/docs here:

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## Summary by CodeRabbit

* **Bug Fixes**
* Improved shutdown handling on Windows by properly responding to system
end-session requests.
* Prevented the main window, settings window, and error dialogs from
reopening or interfering while the app is closing.
* Updated tray “Quit” flow to begin shutdown immediately, ensuring
active profile/connection operations complete cleanly.
* Suppressed UI notifications during shutdown to avoid stray messages
after exit starts.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-28 14:09:16 +09:00
Maycon Santos
bab5572a74 [management, proxy] scope agent-network model allowlist per policy/group and provider (#6905)
## Describe your changes

The model-allowlist guardrail was merged into one account-wide union and
enforced flat on every request, ignoring which policy/group/provider
authorised it. With multiple policies — especially a mix of guardrailed
and un-guardrailed ones — this caused:

- **false-allow**: a model allowlisted for one group/provider leaked to
any caller; and
- **false-deny**: an un-guardrailed policy (intended unrestricted) was
blocked by another policy's allowlist.

Enforcement is now policy/group-aware, mirroring `llm_limit_check`:

- **Management (`SelectPolicyForRequest`) is authoritative.** It uses
the request model (already carried in
`CheckLLMPolicyLimitsRequest.model`, previously ignored) to keep only
applicable policies whose guardrails permit the model; no
allowlist-enabled guardrail = unrestricted. Denies
`llm_policy.model_blocked` when policies govern the (provider, groups)
but none permits the model.
- **Proxy `llm_guardrail` becomes a per-provider fail-closed backstop.**
The synthesiser emits an allowlist only for providers every authorising
policy restricts; the middleware keys off the resolved provider id and
keeps unknown-model fail-closed.
2026-07-27 20:43:59 +02:00
Zoltan Papp
9b4a5df925 [client] Use platform installer URL for manual update downloads (#6922)
The Wails UI regressed the non-enforced update download to the plain
GitHub releases page. Restore the old Fyne behavior: the tray update
item and the About card's Get installer button now open
version.DownloadUrl(), which points to the direct installer download
(pkgs.netbird.io) per OS/arch and falls back to the generic install page
where no installer exists.

Also fix the dead brew detection on darwin: exec.Command passed the
whole pipeline as a single argument to brew, so the check always failed.
Query the netbird formula and netbird-ui cask explicitly via exit codes
instead.

## Describe your changes

## Issue ticket number and link

## Stack

<!-- branch-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)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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).

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Select exactly one:

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## Summary by CodeRabbit

* **New Features**
* Added a direct installer download option for manual application
updates.
* Non-enforced updates now open the appropriate platform-specific
installer instead of the general releases page.

* **Bug Fixes**
  * Improved macOS download behavior for Homebrew installations.
* Preserved architecture-specific downloads for Intel and Apple silicon
Macs.
* Updated the tray “About” links to use the GitHub repository and
documentation instead of the releases page.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-27 20:08:35 +02:00
Misha Bragin
1816a020c4 [management, proxy] Add Claude Opus 5 (#6895) 2026-07-27 16:15:36 +02:00
Zoltan Papp
aa13928b76 [client] Export agent version info for iOS (#6918)
## Describe your changes

Export agent version info for iOS

## Issue ticket number and link

## Stack

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### Checklist
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- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [x] It is a refactor
- [ ] Created tests that fail without the change (if possible)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> By submitting this pull request, you confirm that you have read and
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2026-07-27 15:53:09 +02:00
Viktor Liu
d681670a9d [misc] Restore the rootless-latest docker tag (#6914) 2026-07-27 12:07:58 +02:00
Maycon Santos
4f6247b5c3 [management, proxy] Add prompt-cache token and cost accounting to agent network usage (#6900)
Co-authored-by: braginini <bangvalo@gmail.com>
2026-07-26 21:42:41 +02:00
Riccardo Manfrin
1e5b0a5c89 [client] Make Test_ConnectPeers deterministic under Docker/eBPF kernel / Darwin CI (#6884)
## Describe your changes

Make `Test_ConnectPeers` deterministic. Two issues, both surfaced once
the
privileged suite moved into a `--privileged` Docker container (#6425):

1. The peers used `getLocalIP()` as their WireGuard endpoint, i.e. the
host's
routable NIC IP (the docker bridge IP `172.17.0.2` in CI). That address
might
not hairpin reliably inside the container, so the handshake
intermittently
timed out (flaky). Use loopback (`127.1.0.x`) instead — always
self-reachable.
2. On a Linux runner with the WG kernel module the iface uses the eBPF
proxy
factory. Its manager is a singleton with one shared XDP program +
settings
map, so bringing up the two ifaces makes the second factory overwrite
the
first's `wg_port`/`proxy_port` and the handshake is dropped. The test is
   incompatible with the eBPF factory, so disable it via
`NB_DISABLE_EBPF_WG_PROXY` (peers then handshake directly over
loopback).
Running the suite across all three modes (eBPF / UDP proxy / ICE bind)
would
   need a larger refactor.

Also fixes a typo in the `ErrSharedSockStopped` message (`socked` →
`socket`).

## Issue ticket number and link

No public issue — CI flakiness follow-up to #6871 on `Test_ConnectPeers`

(https://github.com/netbirdio/netbird/blob/main/client/iface/iface_test.go).

## Stack

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### Checklist
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- [ ] Is a typo/documentation fix
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- [ ] 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)

Test-only change (plus a log-string typo). No public API, CLI, config,
or
behavior change.

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Bug Fixes**
* Corrected the “shared socket stopped” error message for clearer
output.
* **Tests**
* Improved peer connection test reliability in privileged CI by
disabling the eBPF WireGuard proxy and using fixed loopback UDP
endpoints for deterministic setup.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-24 15:23:22 +02:00
Riccardo Manfrin
b65ec8b68a [client] Restores lost backup.Reset from #4935 (#6883)
## Describe your changes

Restore the management gRPC client's backoff reset after a stream
connects.

This is a regression: PR #4935 originally added this reset; it was then
lost in
commit `58daa674e` during the `withMgmtStream` refactor (Sync/Job
unification).

Compared to before the reset was done AFTER receiveEvents, whereas 
now it's done before. 

Now should cover for Sync and Job (which didn't exist in #4935. Hold for
long living stream that breaks.

Reset prevents two things

1. long living conns going wrong from waiting a long backoff time window
before to drive reconn
2. past MaxElapsedTime (3months) long lived conns failures from being
treated as "unrecoverable" (hence triggering an full restart of the
engine)

## Issue ticket number and link

Internal support case (customer agents lost data-plane connectivity
during a
management maintenance/release window). No public issue. Regression
introduced
in commit `58daa674e`, which removed the `backOff.Reset()` added by PR
#4935.

## Stack

<!-- branch-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)

Internal reconnection-behavior fix in the management gRPC client. No
public
NetBird CLI, API, or configuration surface changes.

### Docs PR URL (required if "docs added" is checked)
Paste the PR link from https://github.com/netbirdio/docs here:

N/A

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **Bug Fixes**
  * Improved management stream retry behavior.
* Retry delays now reset after a stream is successfully established,
helping subsequent connection attempts recover more quickly.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-24 13:53:53 +02:00
Zoltan Papp
e13bcdbd44 [client] Fetch FreeBSD port files from GitHub mirror instead of cgit (#6880)
cgit.freebsd.org now sits behind an Anubis anti-bot challenge and
intermittently returns an HTML challenge page with HTTP 200 instead of
the requested file, breaking the FreeBSD port release job. Fetch the
port Makefile and distinfo from the official freebsd-ports GitHub
mirror, retry transient failures, and fail loudly if HTML is returned
instead of the expected file.

## Describe your changes

## Issue ticket number and link

## Stack

<!-- branch-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)
- [ ] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature
— **OR** I have discussed it with the NetBird team beforehand (link the
issue / Slack thread in the description). See
[CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first).

> 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/__

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **Bug Fixes**
* Improved reliability when retrieving FreeBSD port metadata during
release and issue preparation.
* Added automatic retries and HTTPS-only redirect handling for safer
downloads.
* Validates fetched content to detect unexpected HTML responses and
avoids processing invalid data.
* Updated port metadata retrieval to use a more reliable mirror,
improving version extraction and the resulting comparisons and
regenerated release information.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-24 13:10:53 +02:00
Riccardo Manfrin
46568f7af8 [client] Reconcile routed allowed IPs when a lazy connection goes idle (#6863)
## Describe your changes

Under lazy connections, when a routing peer goes idle its WireGuard peer
is torn down and re-created with a wake endpoint by
the activity listener, carrying only the overlay /32
(`peerCfg.AllowedIPs`). The routed subnet prefixes are dropped from
  the device on the Connected→Idle transition.

They are meant to be restored by the route watcher, which reacts to the
peer's status change and calls `recalculateRoutes` →
  `AddAllowedIP`. Two things prevent that from healing the peer:

- `AddAllowedIP` uses `update_only`, which is a silent no-op (no error)
when the peer does not exist. While the peer is
being torn down and re-armed with its wake endpoint, it is briefly
absent, so a re-add that lands in that window is lost.
- The allowed-IP refcounter only calls its add function on a prefix's
0→1 transition. The routed prefix stays referenced
across the idle cycle, so once the device entry is gone the refcounter
does not re-push it on its own, and nothing retries.

As a result, traffic to the routed subnet is black-holed while the peer
is idle. Because the wake endpoint only fires when a
packet matches the peer's AllowedIPs, a packet to the subnet is dropped
before reaching the wake endpoint, so it cannot
wake the peer. The peer only recovers when woken by other means (e.g. a
ping to its overlay IP).

  ## Approach

This change keeps the existing Connected→Idle transition as-is and
reconciles the AllowedIPs afterwards, avoiding any
additional locking on the transition path. The peer is torn down and
re-armed with its wake endpoint as today; the routed
prefixes are then re-applied from the route manager's allowed-IP
refcounter once the wake endpoint has been (re)armed.

A single add-only method, `ReconcilePeerAllowedIPs(peerKey)`, re-applies
every routed prefix currently tracked for the peer
in the refcounter (the authoritative store; it already covers static,
dynamic and dnsinterceptor routes). It runs whenever
the peer's wake endpoint is (re)created in the lazy manager — every
point where the activity listener builds it with the
  overlay /32 only:

- **initial registration** (`AddPeer`, cold start): the route manager
may have already pushed the peer's routes before the
wake endpoint existed, so those `AddAllowedIP` calls no-op'd; the
reconcile installs them on the freshly created wake
  endpoint.
- **the two paths into idle** (`DeactivatePeer` on a remote GOAWAY,
`onPeerInactivityTimedOut` on local inactivity): the
peer is torn down and re-armed, so the routed prefixes must be
re-applied.

In every case the routed prefixes end up on the wake endpoint, so
traffic to a routed subnet can wake the peer. Arming the
wake endpoint and reconciling are wrapped in a single
`armActivityListener` helper so the two always happen together.

New helper: `refcounter.Counter.KeysMatching(pred)` to enumerate a
peer's prefixes under the counter lock.

Note on scope: the reconcile restores what the refcounter tracks. All
routed AllowedIPs currently go through it, so this
covers the routed-prefix case; it does not attempt to reconcile
AllowedIPs installed outside the refcounter. The
Idle→Connected (wake) path does not need this: the peer is not removed
there (the listener close leaves it in place and only
the endpoint is updated), so a concurrent `AddAllowedIP` lands normally.

  ## Testing

Reproduced deterministically in a local dev setup (userspace client,
`NB_WG_KERNEL_DISABLED=true`, `B_LAZY_CONN_INACTIVITY_THRESHOLD=1`
inactivity threshold 1
min). A temporary 30s sleep in the tear-down → re-arm window widens the
race so the route watcher's async `AddAllowedIP`
reliably lands while the peer is absent and no-ops (the sleep is a test
aid, not part of the change):

- **without the reconcile:** after the peer goes idle, a ping to any
routed IP — both a pre-existing route and one added
  during the window — black-holes; the peer never wakes.
  - **with the reconcile:** the same ping wakes the peer and passes.

Added unit tests: `ReconcilePeerAllowedIPs` (re-applies all of a peer's
tracked prefixes, scoped to that peer) and
  `refcounter.Counter.KeysMatching`.

Note: `netbird status -d` is not a reliable signal for this —
`AddPeerStateRoute` records the route regardless of whether
the underlying `AddAllowedIP` no-op'd, so it reflects the route
manager's intent rather than device state. The reliable
  signal is functional (ping the subnet from idle).
  
  ## Checklist

  - [x] Is it a bug fix
  - [ ] Is a typo/documentation fix
  - [ ] Is a feature enhancement
  - [ ] It is a refactor
- [x] Created tests that fail without the change (unit tests for the
reconcile + `KeysMatching`)

  ## Documentation

- [x] Documentation is **not needed** for this change (internal client
behavior, no API / gRPC / CLI / flag change)

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **Bug Fixes**
* Routed IP assignments are automatically reconciled and restored
whenever a peer’s lazy wake endpoint is armed or re-armed.
* Routed allowed IPs are re-applied after inactivity transitions and
monitoring re-initialization.
* If reconciliation can’t be performed, the client safely skips it; if
reconciliation encounters issues, failures are logged without stopping
connection monitoring.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-23 18:40:54 +02:00
Riccardo Manfrin
3358138ccc [client] Fix flaky Test_ConnectPeers busy-loop handshake wait (#6871)
## Describe your changes

  `Test_ConnectPeers` in `client/iface` is flaky in CI, timing out with
  `waiting for peer handshake timeout after 30s`.

  The wait loop polled `getPeer()` in a tight busy-loop with no sleep
(a `select` with a `default` branch), pegging a CPU core. The peers run
  userspace WireGuard (stdnet transport), so the spin starved the
wireguard-go goroutines that actually process the handshake, making the
  30s wait flaky under CI load.

Poll on a 500ms ticker instead so the CPU is yielded between checks, and
  check the handshake state before waiting. Same logic, no busy-spin.

  ## Issue ticket number and link

  N/A — CI flakiness fix.

  ### 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)
- [x] This change does **not** modify the public API, gRPC protocols,
functionality behavior, CLI / service flags, or introduce a new feature

  ## Documentation

  - [x] Documentation is **not needed** for this change (test-only fix)

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## Summary by CodeRabbit

* **Tests**
* Improved peer connection test waiting behavior to avoid busy spinning.
* Added a timeout and periodic checks, with clearer failure handling
when a handshake does not complete.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-23 15:48:16 +02:00
Viktor Liu
6d15d0729a [client] Clear stale UDP checksum in eBPF XDP proxy after port rewrite (#6861) 2026-07-23 14:37:52 +02:00
Maycon Santos
0936918d24 [management, proxy] add Kimi (Moonshot AI) provider to Agent Network (#6853) 2026-07-23 13:32:32 +02:00
Bethuel Mmbaga
d4a4418969 [misc] Simplify enterprise bootstrap (#6869) 2026-07-23 12:41:13 +03:00
Pascal Fischer
31ed241a1a [management] component types (#6866) 2026-07-23 11:37:09 +02:00
Maycon Santos
178e6a8530 [misc] Probe the agent-network endpoint with a GET instead of getent (#6867)
## Describe your changes

Use http get to trigger lazy connections as e2e will have single proxy
and status checks would fail without proper lazy wake-up
2026-07-23 15:30:40 +09:00
Maycon Santos
96963b6751 [proxy] fix proxy multistage build (#6864) 2026-07-22 21:24:44 +02:00
221 changed files with 10716 additions and 3053 deletions

View File

@@ -5,6 +5,13 @@ on:
schedule:
- cron: "0 3 * * *"
workflow_dispatch:
inputs:
bedrock_model:
description: >-
Bedrock inference-profile id to drive the matrix with, exactly as
AWS issues it. Leave empty for the Sonnet 4.6 default.
required: false
default: ""
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
@@ -51,6 +58,9 @@ jobs:
# token (and URL, for gateways) is unset, so partial coverage is fine.
OPENAI_TOKEN: ${{ secrets.E2E_OPENAI_TOKEN }}
ANTHROPIC_TOKEN: ${{ secrets.E2E_ANTHROPIC_TOKEN }}
# Moonshot AI platform key (platform.kimi.ai); drives both Kimi wire
# shapes (OpenAI /v1 and Anthropic /anthropic) through kimi_api.
KIMI_TOKEN: ${{ secrets.E2E_KIMI_TOKEN }}
VERCEL_URL: ${{ secrets.E2E_VERCEL_URL }}
VERCEL_TOKEN: ${{ secrets.E2E_VERCEL_TOKEN }}
OPENROUTER_URL: ${{ secrets.E2E_OPENROUTER_URL }}
@@ -59,6 +69,8 @@ jobs:
CLOUDFLARE_TOKEN: ${{ secrets.E2E_CLOUDFLARE_TOKEN }}
AWS_BEARER_TOKEN_BEDROCK: ${{ secrets.E2E_AWS_BEARER_TOKEN_BEDROCK }}
AWS_REGION: ${{ secrets.E2E_AWS_REGION }}
# Bedrock model override: dispatch input wins, then the repo variable, else the test default.
AWS_BEDROCK_MODEL: ${{ inputs.bedrock_model || vars.E2E_AWS_BEDROCK_MODEL }}
# Vertex (Anthropic-on-Vertex): SA + project required; region defaults
# to "global", model to a pinned claude snapshot.
GOOGLE_VERTEX_SA_BASE64: ${{ secrets.E2E_GOOGLE_VERTEX_SA_BASE64 }}

View File

@@ -249,78 +249,35 @@ jobs:
docker compose exec management ls -l /var/lib/netbird/ | grep -i GeoLite2-City_[0-9]*.mmdb
docker compose exec management ls -l /var/lib/netbird/ | grep -i geonames_[0-9]*.db
test-getting-started-script:
test-legacy-getting-started-scripts:
runs-on: ubuntu-latest
steps:
- name: Install jq
run: sudo apt-get install -y jq
- name: Checkout code
uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
with:
persist-credentials: false
- name: run script with Zitadel PostgreSQL
run: NETBIRD_DOMAIN=use-ip bash -x infrastructure_files/getting-started-with-zitadel.sh
- name: test Caddy file gen postgres
run: test -f Caddyfile
- name: test docker-compose file gen postgres
run: test -f docker-compose.yml
- name: test management.json file gen postgres
run: test -f management.json
- name: test turnserver.conf file gen postgres
- name: Verify Dex retirement notice
run: |
set -x
test -f turnserver.conf
grep external-ip turnserver.conf
if infrastructure_files/getting-started-with-dex.sh >stdout.txt 2>stderr.txt; then
echo "Expected the retired Dex installer to fail"
exit 1
fi
test ! -s stdout.txt
grep -Fq "Dex support is not deprecated." stderr.txt
grep -Fq "https://docs.netbird.io/selfhosted/selfhosted-quickstart" stderr.txt
grep -Fq "https://docs.netbird.io/selfhosted/identity-providers/local" stderr.txt
grep -Fq "removed in NetBird v0.80" stderr.txt
- name: test zitadel.env file gen postgres
run: test -f zitadel.env
- name: test dashboard.env file gen postgres
run: test -f dashboard.env
- name: test relay.env file gen postgres
run: test -f relay.env
- name: test zdb.env file gen postgres
run: test -f zdb.env
- name: Postgres run cleanup
- name: Verify Zitadel retirement notice
run: |
docker compose down --volumes --rmi all
rm -rf docker-compose.yml Caddyfile zitadel.env dashboard.env machinekey/zitadel-admin-sa.token turnserver.conf management.json zdb.env
- name: run script with Zitadel CockroachDB
run: bash -x infrastructure_files/getting-started-with-zitadel.sh
env:
NETBIRD_DOMAIN: use-ip
ZITADEL_DATABASE: cockroach
- name: test Caddy file gen CockroachDB
run: test -f Caddyfile
- name: test docker-compose file gen CockroachDB
run: test -f docker-compose.yml
- name: test management.json file gen CockroachDB
run: test -f management.json
- name: test turnserver.conf file gen CockroachDB
run: |
set -x
test -f turnserver.conf
grep external-ip turnserver.conf
- name: test zitadel.env file gen CockroachDB
run: test -f zitadel.env
- name: test dashboard.env file gen CockroachDB
run: test -f dashboard.env
- name: test relay.env file gen CockroachDB
run: test -f relay.env
if bash infrastructure_files/getting-started-with-zitadel.sh >stdout.txt 2>stderr.txt; then
echo "Expected the retired Zitadel installer to fail"
exit 1
fi
test ! -s stdout.txt
grep -Fq "Zitadel support and existing Zitadel deployments are not deprecated." stderr.txt
grep -Fq "https://docs.netbird.io/selfhosted/selfhosted-quickstart" stderr.txt
grep -Fq "https://docs.netbird.io/selfhosted/identity-providers/zitadel" stderr.txt
grep -Fq "https://docs.netbird.io/selfhosted/selfhosted-guide" stderr.txt
grep -Fq "removed in NetBird v0.80" stderr.txt

View File

@@ -273,8 +273,8 @@ dockers_v2:
- netbirdio/netbird
- ghcr.io/netbirdio/netbird
tags:
- "v{{ .Version }}-rootless"
- "{{ if eq .Env.SKIP_PUBLISH \"false\" }}latest{{ end }}"
- "{{ .Version }}-rootless"
- "{{ if eq .Env.SKIP_PUBLISH \"false\" }}rootless-latest{{ end }}"
dockerfile: client/Dockerfile-rootless
extra_files:
- client/netbird-entrypoint.sh

View File

@@ -24,6 +24,8 @@ builds:
ldflags:
- -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: "{{ .CommitTimestamp }}"
tags:
- production
- id: netbird-ui-windows-amd64
dir: client/ui
@@ -39,6 +41,8 @@ builds:
- -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
- -H windowsgui
mod_timestamp: "{{ .CommitTimestamp }}"
tags:
- production
- id: netbird-ui-windows-arm64
dir: client/ui
@@ -55,6 +59,8 @@ builds:
- -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
- -H windowsgui
mod_timestamp: "{{ .CommitTimestamp }}"
tags:
- production
archives:
- id: linux-arch

View File

@@ -29,6 +29,8 @@ builds:
ldflags:
- -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: "{{ .CommitTimestamp }}"
tags:
- production
universal_binaries:
- id: netbird-ui-darwin

View File

@@ -234,12 +234,22 @@ cd client/ui
task dev
```
Pass daemon flags after `--`:
Pass daemon flags after `--`, pointing the UI at the socket the daemon serves:
```
task dev -- --daemon-addr=tcp://127.0.0.1:41731
task dev -- --daemon-addr=unix:///var/run/netbird.sock # Linux, macOS
task dev -- --daemon-addr=npipe://netbird # Windows
```
On Windows the daemon serves a named pipe (`npipe://netbird`). Which path that
ends up being depends on what the daemon may create: as a service or elevated it
serves `\\.\pipe\ProtectedPrefix\Administrators\netbird`, which no unprivileged
process can take from it, and otherwise it falls back to `\\.\pipe\netbird`.
Clients try both and check who owns the pipe before using the plain one. Avoid
`tcp://127.0.0.1:41731`: loopback TCP carries no caller identity, so the daemon
refuses the operations that require an administrator and you will not exercise
those paths.
Production build (frontend assets embedded into the binary, output in `client/ui/bin/`):
```

View File

@@ -7,6 +7,7 @@ import (
"fmt"
"os"
"slices"
"strings"
"sync"
"time"
@@ -299,6 +300,13 @@ func (c *Client) SetInfoLogLevel() {
// PeersList return with the list of the PeerInfos
func (c *Client) PeersList() *PeerInfoArray {
// The recorder only caches transfer counters and handshake times; nothing
// refreshes them on its own, so without this they read as zero. The desktop
// daemon does the same before serving a full peer status.
if err := c.recorder.RefreshWireGuardStats(); err != nil {
log.Debugf("failed to refresh WireGuard stats: %v", err)
}
fullStatus := c.recorder.GetFullStatus()
peerInfos := make([]PeerInfo, len(fullStatus.Peers))
@@ -309,6 +317,20 @@ func (c *Client) PeersList() *PeerInfoArray {
FQDN: p.FQDN,
ConnStatus: int(p.ConnStatus),
Routes: PeerRoutes{routes: maps.Keys(p.GetRoutes())},
PubKey: p.PubKey,
Latency: formatDuration(p.Latency),
LatencyMs: p.Latency.Milliseconds(),
BytesRx: p.BytesRx,
BytesTx: p.BytesTx,
ConnStatusUpdate: formatTime(p.ConnStatusUpdate),
Relayed: p.Relayed,
RosenpassEnabled: p.RosenpassEnabled,
LastWireguardHandshake: formatTime(p.LastWireguardHandshake),
LocalIceCandidateType: p.LocalIceCandidateType,
RemoteIceCandidateType: p.RemoteIceCandidateType,
LocalIceCandidateEndpoint: p.LocalIceCandidateEndpoint,
RemoteIceCandidateEndpoint: p.RemoteIceCandidateEndpoint,
}
peerInfos[n] = pi
}
@@ -439,10 +461,6 @@ func (c *Client) RemoveConnectionListener() {
c.recorder.RemoveConnectionListener()
}
func (c *Client) toggleRoute(command routeCommand) error {
return command.toggleRoute()
}
func (c *Client) getRouteManager() (routemanager.Manager, error) {
client := c.getConnectClient()
if client == nil {
@@ -462,22 +480,22 @@ func (c *Client) getRouteManager() (routemanager.Manager, error) {
return manager, nil
}
func (c *Client) SelectRoute(route string) error {
func (c *Client) SelectRoute(id string) error {
manager, err := c.getRouteManager()
if err != nil {
return err
}
return c.toggleRoute(selectRouteCommand{route: route, manager: manager})
return manager.SelectRoutes([]route.NetID{route.NetID(id)}, true)
}
func (c *Client) DeselectRoute(route string) error {
func (c *Client) DeselectRoute(id string) error {
manager, err := c.getRouteManager()
if err != nil {
return err
}
return c.toggleRoute(deselectRouteCommand{route: route, manager: manager})
return manager.DeselectRoutes([]route.NetID{route.NetID(id)})
}
// getNetworkDomainsFromRoute extracts domains from a route and enriches each domain
@@ -512,3 +530,28 @@ func exportEnvList(list *EnvList) {
}
}
}
// formatDuration renders a duration for display, trimming the fractional part
// to two digits so latencies read as "12.34ms" rather than "12.345678ms".
func formatDuration(d time.Duration) string {
ds := d.String()
dotIndex := strings.Index(ds, ".")
if dotIndex == -1 {
return ds
}
endIndex := min(dotIndex+3, len(ds))
// Skip the remaining digits so only the unit suffix is appended back.
unitStart := endIndex
for unitStart < len(ds) && ds[unitStart] >= '0' && ds[unitStart] <= '9' {
unitStart++
}
return ds[:endIndex] + ds[unitStart:]
}
// formatTime renders a timestamp in UTC using a fixed layout. The zero time is
// passed through as-is so the UI can recognise it and show "never" instead.
func formatTime(t time.Time) string {
return t.UTC().Format("2006-01-02 15:04:05")
}

View File

@@ -12,12 +12,30 @@ const (
)
// PeerInfo describe information about the peers. It designed for the UI usage
//
// The fields below ConnStatus back the peer detail screen. Durations and times
// are pre-formatted into strings so the UI does not have to know Go's layouts;
// Latency is additionally exposed as LatencyMs for colour coding.
type PeerInfo struct {
IP string
IPv6 string
FQDN string
ConnStatus int
Routes PeerRoutes
PubKey string
Latency string
LatencyMs int64
BytesRx int64
BytesTx int64
ConnStatusUpdate string
Relayed bool
RosenpassEnabled bool
LastWireguardHandshake string
LocalIceCandidateType string
RemoteIceCandidateType string
LocalIceCandidateEndpoint string
RemoteIceCandidateEndpoint string
}
func (p *PeerInfo) GetPeerRoutes() *PeerRoutes {

View File

@@ -189,6 +189,19 @@ func (pm *ProfileManager) LogoutProfile(id string) error {
return nil
}
// RenameProfile changes a profile's display name. The profile ID, and therefore
// its on-disk filename, is left untouched: only the "name" field of the config
// is rewritten. This works for the default profile too, whose config lives in
// netbird.cfg rather than under profiles/.
func (pm *ProfileManager) RenameProfile(id string, newName string) error {
if err := pm.serviceMgr.RenameProfile(profilemanager.ID(id), androidUsername, newName); err != nil {
return fmt.Errorf("failed to rename profile: %w", err)
}
log.Infof("renamed profile %s to: %s", id, newName)
return nil
}
// RemoveProfile deletes a profile
func (pm *ProfileManager) RemoveProfile(id string) error {
// Use ServiceManager (removes profile from profiles/ directory)

View File

@@ -1,70 +0,0 @@
//go:build android
package android
import (
"fmt"
log "github.com/sirupsen/logrus"
"golang.org/x/exp/maps"
"github.com/netbirdio/netbird/client/internal/routemanager"
"github.com/netbirdio/netbird/route"
)
func executeRouteToggle(id string, manager routemanager.Manager,
operationName string,
routeOperation func(routes []route.NetID, allRoutes []route.NetID) error) error {
netID := route.NetID(id)
routes := []route.NetID{netID}
routesMap := manager.GetClientRoutesWithNetID()
routes = route.ExpandV6ExitPairs(routes, routesMap)
log.Debugf("%s with ids: %v", operationName, routes)
if err := routeOperation(routes, maps.Keys(routesMap)); err != nil {
log.Debugf("error when %s: %s", operationName, err)
return fmt.Errorf("error %s: %w", operationName, err)
}
manager.TriggerSelection(manager.GetClientRoutes())
return nil
}
type routeCommand interface {
toggleRoute() error
}
type selectRouteCommand struct {
route string
manager routemanager.Manager
}
func (s selectRouteCommand) toggleRoute() error {
routeSelector := s.manager.GetRouteSelector()
if routeSelector == nil {
return fmt.Errorf("no route selector available")
}
routeOperation := func(routes []route.NetID, allRoutes []route.NetID) error {
return routeSelector.SelectRoutes(routes, true, allRoutes)
}
return executeRouteToggle(s.route, s.manager, "selecting route", routeOperation)
}
type deselectRouteCommand struct {
route string
manager routemanager.Manager
}
func (d deselectRouteCommand) toggleRoute() error {
routeSelector := d.manager.GetRouteSelector()
if routeSelector == nil {
return fmt.Errorf("no route selector available")
}
return executeRouteToggle(d.route, d.manager, "deselecting route", routeSelector.DeselectRoutes)
}

View File

@@ -0,0 +1,66 @@
package cmd
import (
"errors"
"fmt"
"strings"
"google.golang.org/genproto/googleapis/rpc/errdetails"
gstatus "google.golang.org/grpc/status"
"github.com/netbirdio/netbird/client/internal/ipcauth"
)
// daemonCallError prepares a daemon error for display. A refusal the daemon
// raised because the operation needs root/administrator is already guidance
// written for the user, so it is surfaced on its own instead of buried under the
// gRPC envelope and the name of the RPC that hit it. Anything else is wrapped
// with context as usual.
func daemonCallError(context string, err error) error {
if guidance, ok := privilegeGuidance(err); ok {
return errors.New(guidance)
}
return fmt.Errorf("%s: %w", context, err)
}
// privilegeGuidance renders the daemon's privilege refusal as a summary and the
// command that performs the operation with the privileges it needs. It reports
// false for any other error.
func privilegeGuidance(err error) (string, bool) {
info, ok := privilegeErrorInfo(err)
if !ok {
return "", false
}
summary := info.GetMetadata()[ipcauth.ErrorMetaSummary]
command := info.GetMetadata()[ipcauth.ErrorMetaCommand]
if summary == "" {
// Detail without a summary: fall back to the status message, which
// carries the same text.
summary = strings.TrimSpace(gstatus.Convert(err).Message())
}
if command == "" {
return summary, true
}
return fmt.Sprintf("%s\n\n %s\n", summary, command), true
}
// privilegeErrorInfo returns the daemon's privilege-refusal detail, if the error
// carries one.
func privilegeErrorInfo(err error) (*errdetails.ErrorInfo, bool) {
if err == nil {
return nil, false
}
for _, detail := range gstatus.Convert(err).Details() {
info, ok := detail.(*errdetails.ErrorInfo)
if !ok {
continue
}
if info.GetReason() == ipcauth.ErrorReasonPrivilegeRequired && info.GetDomain() == ipcauth.ErrorDomain {
return info, true
}
}
return nil, false
}

View File

@@ -46,7 +46,7 @@ var logoutCmd = &cobra.Command{
}
if _, err := daemonClient.Logout(ctx, req); err != nil {
return fmt.Errorf("deregister: %v", err)
return daemonCallError("deregister", err)
}
cmd.Println("Deregistered successfully")

View File

@@ -20,7 +20,6 @@ import (
"github.com/spf13/cobra"
"github.com/spf13/pflag"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
daddr "github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/profilemanager"
@@ -91,6 +90,7 @@ var (
// Don't resolve for service commands — they create the socket, not connect to it.
if !isServiceCmd(cmd) {
daemonAddr = daddr.ResolveUnixDaemonAddr(daemonAddr)
daemonAddr = daddr.ResolveDaemonAddr(daemonAddr)
}
return nil
},
@@ -143,10 +143,10 @@ func init() {
defaultDaemonAddr := "unix:///var/run/netbird.sock"
if runtime.GOOS == "windows" {
defaultDaemonAddr = "tcp://127.0.0.1:41731"
defaultDaemonAddr = daddr.WindowsPipeAddr
}
rootCmd.PersistentFlags().StringVar(&daemonAddr, "daemon-addr", defaultDaemonAddr, "Daemon service address to serve CLI requests [unix|tcp]://[path|host:port]")
rootCmd.PersistentFlags().StringVar(&daemonAddr, "daemon-addr", defaultDaemonAddr, "Daemon service address to serve CLI requests [unix|tcp|npipe]://[path|host:port|name]")
rootCmd.PersistentFlags().StringVarP(&managementURL, "management-url", "m", "", fmt.Sprintf("Management Service URL [http|https]://[host]:[port] (default \"%s\")", profilemanager.DefaultManagementURL))
rootCmd.PersistentFlags().StringVar(&adminURL, "admin-url", "", fmt.Sprintf("Admin Panel URL [http|https]://[host]:[port] (default \"%s\")", profilemanager.DefaultAdminURL))
rootCmd.PersistentFlags().StringVarP(&logLevel, "log-level", "l", "info", "sets NetBird log level")
@@ -269,12 +269,10 @@ func DialClientGRPCServer(ctx context.Context, addr string) (*grpc.ClientConn, e
ctx, cancel := context.WithTimeout(ctx, time.Second*10)
defer cancel()
return grpc.DialContext(
ctx,
strings.TrimPrefix(addr, "tcp://"),
grpc.WithTransportCredentials(insecure.NewCredentials()),
grpc.WithBlock(),
)
target, opts := daddr.DialTarget(addr)
opts = append(opts, grpc.WithBlock())
return grpc.DialContext(ctx, target, opts...)
}
// WithBackOff execute function in backoff cycle.

View File

@@ -33,10 +33,15 @@ var (
)
type program struct {
ctx context.Context
cancel context.CancelFunc
serv *grpc.Server
jsonServ *http.Server
ctx context.Context
cancel context.CancelFunc
serv *grpc.Server
jsonServ *http.Server
// jsonClient is the gateway's own connection to the daemon. It is held so
// shutting the gateway down also closes it: nothing else references it once
// the handlers are registered, so its transport goroutines would otherwise
// outlive the server.
jsonClient *grpc.ClientConn
jsonServMu sync.Mutex
serverInstance *server.Server
serverInstanceMu sync.Mutex

View File

@@ -5,6 +5,7 @@ package cmd
import (
"context"
"fmt"
"runtime"
"time"
"github.com/kardianos/service"
@@ -13,6 +14,8 @@ import (
"github.com/spf13/cobra"
"google.golang.org/grpc"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/ipcauth"
"github.com/netbirdio/netbird/client/proto"
"github.com/netbirdio/netbird/client/server"
"github.com/netbirdio/netbird/client/system"
@@ -26,6 +29,31 @@ func validateJSONSocketFlags() error {
return nil
}
// daemonServerOptions installs the transport credentials that expose each
// caller's kernel-authenticated identity to the handlers, which is what lets
// the daemon require root/administrator for privileged operations.
//
// The handshake exchanges no bytes, so older CLI and UI binaries still
// interoperate. Callers on a TCP socket carry no identity at all: the daemon
// keeps serving them, and the privileged operations deny them, so a warning is
// logged to make the loss of functionality visible.
func daemonServerOptions(network string) []grpc.ServerOption {
if network == "tcp" {
log.Warnf("daemon is listening on TCP (%s): callers carry no verifiable identity over TCP, "+
"so privileged operations (SSH root login, SSH auth, enabling the SSH server, management URL changes, "+
"deregistration) will be denied. Use a unix socket, or npipe:// on Windows", daemonAddr)
return nil
}
creds := ipcauth.NewTransportCredentials()
if creds == nil {
log.Warnf("daemon IPC has no peer-identity primitive on %s: privileged operations will be denied", runtime.GOOS)
return nil
}
return []grpc.ServerOption{grpc.Creds(creds)}
}
func (p *program) Start(svc service.Service) error {
// Start should not block. Do the actual work async.
log.Info("starting NetBird service") //nolint
@@ -37,68 +65,106 @@ func (p *program) Start(svc service.Service) error {
// Collect static system and platform information
system.UpdateStaticInfoAsync()
// in any case, even if configuration does not exists we run daemon to serve CLI gRPC API.
p.serv = grpc.NewServer()
daemonListener, err := listenOnAddress(daemonAddr)
if err != nil {
return fmt.Errorf("listen daemon interface: %w", err)
// A daemon installed before named-pipe support has the loopback TCP address
// persisted. Move it to the named pipe so an upgraded daemon can identify
// its callers instead of silently serving an unauthenticated socket.
if migrated, ok := daemonaddr.MigrateLegacy(daemonAddr); ok {
log.Infof("daemon address %q predates named-pipe support, listening on %q so callers can be identified", daemonAddr, migrated)
daemonAddr = migrated
}
var jsonListener *socketListener
if enableJSONSocket {
jsonListener, err = listenOnAddress(jsonSocket)
if err != nil {
_ = daemonListener.Close()
return fmt.Errorf("listen daemon JSON interface: %w", err)
}
} else {
removeStaleUnixSocketForAddress(jsonSocket)
network, _, err := parseListenAddress(daemonAddr)
if err != nil {
return fmt.Errorf("parse daemon address: %w", err)
}
// in any case, even if configuration does not exists we run daemon to serve CLI gRPC API.
p.serv = grpc.NewServer(daemonServerOptions(network)...)
daemonListener, jsonListener, err := listenDaemonSockets()
if err != nil {
return err
}
go func() {
defer daemonListener.Close()
if jsonListener != nil {
defer jsonListener.Close()
}
if err := daemonListener.chmodUnixSocket("daemon"); err != nil {
log.Error(err)
return
}
if jsonListener != nil {
if err := jsonListener.chmodUnixSocket("daemon JSON"); err != nil {
log.Error(err)
return
}
}
serverInstance := server.New(p.ctx, util.FindFirstLogPath(logFiles), configPath, profilesDisabled, updateSettingsDisabled, captureEnabled, networksDisabled)
if err := serverInstance.Start(); err != nil {
log.Fatalf("failed to start daemon: %v", err)
}
proto.RegisterDaemonServiceServer(p.serv, serverInstance)
p.serverInstanceMu.Lock()
p.serverInstance = serverInstance
p.serverInstanceMu.Unlock()
if jsonListener != nil {
if err := p.startJSONGateway(jsonListener, daemonAddr); err != nil {
log.Fatalf("failed to start daemon JSON server: %v", err)
}
} else {
log.Debug("daemon JSON socket disabled")
}
log.Printf("started daemon server: %v", daemonListener.address)
if err := p.serv.Serve(daemonListener.Listener); err != nil {
log.Errorf("failed to serve daemon requests: %v", err)
// Fatal here rather than inside serve, so serve's deferred listener
// closes run before the process exits.
if err := p.serve(daemonListener, jsonListener); err != nil {
log.Fatalf("failed to %v", err)
}
}()
return nil
}
// listenDaemonSockets opens the daemon control socket and, when it is enabled, the
// JSON gateway socket. The control socket is closed again if the second one fails,
// so a failed start leaves nothing listening. The returned JSON listener is nil
// when the socket is disabled.
func listenDaemonSockets() (*socketListener, *socketListener, error) {
daemonListener, err := listenOnAddress(daemonAddr)
if err != nil {
return nil, nil, fmt.Errorf("listen daemon interface: %w", err)
}
if !enableJSONSocket {
removeStaleUnixSocketForAddress(jsonSocket)
return daemonListener, nil, nil
}
jsonListener, err := listenOnAddress(jsonSocket)
if err != nil {
if cerr := daemonListener.Close(); cerr != nil {
log.Debugf("close daemon listener: %v", cerr)
}
return nil, nil, fmt.Errorf("listen daemon JSON interface: %w", err)
}
return daemonListener, jsonListener, nil
}
// serve brings up the daemon server on an already-open control socket and blocks
// until it stops. jsonListener is nil when the JSON socket is disabled. A returned
// error means the daemon cannot run at all and the caller is expected to exit; the
// failures it recovers from on its own are logged here.
func (p *program) serve(daemonListener, jsonListener *socketListener) error {
defer daemonListener.Close()
if jsonListener != nil {
defer jsonListener.Close()
}
// chmodUnixSocket is a no-op for a nil listener and for a non-unix one.
if err := daemonListener.chmodUnixSocket("daemon"); err != nil {
log.Error(err)
return nil
}
if err := jsonListener.chmodUnixSocket("daemon JSON"); err != nil {
log.Error(err)
return nil
}
serverInstance := server.New(p.ctx, util.FindFirstLogPath(logFiles), configPath, profilesDisabled, updateSettingsDisabled, captureEnabled, networksDisabled)
if err := serverInstance.Start(); err != nil {
return fmt.Errorf("start daemon: %w", err)
}
proto.RegisterDaemonServiceServer(p.serv, serverInstance)
p.serverInstanceMu.Lock()
p.serverInstance = serverInstance
p.serverInstanceMu.Unlock()
if jsonListener == nil {
log.Debug("daemon JSON socket disabled")
} else if err := p.startJSONGateway(jsonListener, daemonAddr); err != nil {
return fmt.Errorf("start daemon JSON server: %w", err)
}
log.Printf("started daemon server: %v", daemonListener.address)
if err := p.serv.Serve(daemonListener.Listener); err != nil {
log.Errorf("failed to serve daemon requests: %v", err)
}
return nil
}
func (p *program) Stop(srv service.Service) error {
p.serverInstanceMu.Lock()
if p.serverInstance != nil {
@@ -113,8 +179,13 @@ func (p *program) Stop(srv service.Service) error {
p.cancel()
p.jsonServMu.Lock()
jsonServ := p.jsonServ
jsonServ, jsonClient := p.jsonServ, p.jsonClient
p.jsonServMu.Unlock()
if jsonClient != nil {
if err := jsonClient.Close(); err != nil {
log.Debugf("close daemon JSON gateway client: %v", err)
}
}
if jsonServ != nil {
shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 2*time.Second)
if err := jsonServ.Shutdown(shutdownCtx); err != nil {

View File

@@ -5,27 +5,123 @@ package cmd
import (
"context"
"errors"
"fmt"
"net"
"net/http"
"strings"
"sync"
"time"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
log "github.com/sirupsen/logrus"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/ipcauth"
"github.com/netbirdio/netbird/client/proto"
)
func grpcGatewayEndpoint(addr string) string {
return strings.TrimPrefix(addr, "tcp://")
// jsonPeerIdentity is the context key under which the connecting HTTP client's
// identity is stashed for the lifetime of its connection.
type jsonPeerIdentity struct{}
// jsonPeerIdentityValue pairs the identity with whether it could be read at
// all, so an unreadable identity is forwarded as "unknown" rather than omitted.
type jsonPeerIdentityValue struct {
id ipcauth.Identity
known bool
}
// jsonConnContext reads the identity of the client connecting to the JSON
// socket and stashes it on the connection's context. The gateway re-dials the
// daemon in-process, so the daemon would otherwise see every JSON request as
// coming from the daemon itself.
func jsonConnContext(ctx context.Context, c net.Conn) context.Context {
value := jsonPeerIdentityValue{}
id, err := ipcauth.ConnIdentity(c)
if err != nil {
log.Warnf("json gateway: cannot read HTTP client identity, privileged operations will be denied for this connection: %v", err)
} else {
value.id = id
value.known = true
}
return context.WithValue(ctx, jsonPeerIdentity{}, value)
}
// forwardIdentity stamps the HTTP client's identity onto every call the gateway
// makes to the daemon.
//
// It is an interceptor on the gateway's client connection rather than a
// runtime.WithMetadata annotator because grpc-gateway skips annotators when no
// request header maps to metadata, which an HTTP/1.0 request with no Host header
// over a unix socket achieves. The daemon would then receive no marker, see its own
// identity as the transport peer, and authorize the request as the daemon itself.
// An interceptor runs for every RPC whatever the request looked like.
func forwardIdentity(ctx context.Context) context.Context {
value, ok := ctx.Value(jsonPeerIdentity{}).(jsonPeerIdentityValue)
if !ok {
// No ConnContext ran for this request, so forward an unknown identity:
// the daemon must not mistake its own identity for the client's.
return ipcauth.WithForwardedIdentity(ctx, ipcauth.Identity{}, false)
}
return ipcauth.WithForwardedIdentity(ctx, value.id, value.known)
}
func forwardIdentityUnary(ctx context.Context, method string, req, reply any, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
return invoker(forwardIdentity(ctx), method, req, reply, cc, opts...)
}
func forwardIdentityStream(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
return streamer(forwardIdentity(ctx), desc, cc, method, opts...)
}
// reservedHeaderWarning limits the dropped-header warning to the first occurrence.
var reservedHeaderWarning sync.Once
// jsonIncomingHeaderMatcher keeps an HTTP client from supplying the metadata the
// gateway uses to forward its identity. grpc-gateway turns "Grpc-Metadata-<key>"
// headers into gRPC metadata and joins them ahead of what its annotators add, so
// without this filter a JSON client could send its own x-netbird-fwd-uid and the
// daemon would authorize that instead of the client's real identity.
func jsonIncomingHeaderMatcher(key string) (string, bool) {
mapped, ok := runtime.DefaultHeaderMatcher(key)
if !ok {
return "", false
}
if ipcauth.IsReservedForwardKey(mapped) {
// Warn once: any client can send these on every request, so warning each
// time hands it a way to fill the log. The rest are debug-level.
reservedHeaderWarning.Do(func() {
log.Warnf("json gateway: dropping reserved header %q from a request: only the gateway may set the caller's identity", key)
})
log.Debugf("json gateway: dropping reserved header %q", key)
return "", false
}
return mapped, true
}
func (p *program) startJSONGateway(jsonListener *socketListener, daemonEndpoint string) error {
mux := runtime.NewServeMux()
opts := []grpc.DialOption{grpc.WithTransportCredentials(insecure.NewCredentials())}
if err := proto.RegisterDaemonServiceHandlerFromEndpoint(p.ctx, mux, grpcGatewayEndpoint(daemonEndpoint), opts); err != nil {
if jsonListener.network == "tcp" {
log.Warnf("daemon JSON socket is listening on TCP (%s): callers carry no verifiable identity over TCP, "+
"so privileged operations will be denied for JSON clients", jsonListener.address)
}
mux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(jsonIncomingHeaderMatcher))
// grpc.NewClient does not connect until the first request, so registering
// the handler here cannot block daemon startup.
target, opts := daemonaddr.DialTarget(daemonEndpoint)
opts = append(opts,
grpc.WithChainUnaryInterceptor(forwardIdentityUnary),
grpc.WithChainStreamInterceptor(forwardIdentityStream),
)
conn, err := grpc.NewClient(target, opts...)
if err != nil {
return fmt.Errorf("create daemon client for JSON gateway: %w", err)
}
if err := proto.RegisterDaemonServiceHandler(p.ctx, mux, conn); err != nil {
if cerr := conn.Close(); cerr != nil {
log.Debugf("close daemon client after failed JSON gateway registration: %v", cerr)
}
return err
}
@@ -35,10 +131,12 @@ func (p *program) startJSONGateway(jsonListener *socketListener, daemonEndpoint
BaseContext: func(net.Listener) context.Context {
return p.ctx
},
ConnContext: jsonConnContext,
}
p.jsonServMu.Lock()
p.jsonServ = jsonServer
p.jsonClient = conn
p.jsonServMu.Unlock()
go func() {

View File

@@ -0,0 +1,261 @@
//go:build !windows && !ios && !android
package cmd
import (
"context"
"net"
"net/http"
"path/filepath"
"testing"
"time"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
"github.com/netbirdio/netbird/client/internal/ipcauth"
)
// The JSON gateway runs inside the daemon and re-dials it locally, so every JSON
// request reaches a handler with the daemon's own identity as the transport peer.
// The gateway therefore forwards its HTTP client's identity as metadata, and the
// daemon authorizes that instead of itself. These tests drive the real wiring
// (jsonConnContext, forwardIdentity, jsonIncomingHeaderMatcher) and check the
// identity a handler would end up authorizing.
// daemonSideCtx is what a handler sees for a gateway-relayed call. The transport
// peer must be this process's own identity: the gateway is the daemon, so the two
// cannot differ, and hardcoding root here instead would describe a state that
// never occurs.
func daemonSideCtx(t *testing.T, md metadata.MD) context.Context {
t.Helper()
self, err := ipcauth.CurrentProcessIdentity()
if err != nil {
t.Skipf("cannot read this process's identity: %v", err)
}
ctx := peer.NewContext(context.Background(), &peer.Peer{
AuthInfo: ipcauth.AuthInfo{
CommonAuthInfo: credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity},
Identity: self,
},
})
return metadata.NewIncomingContext(ctx, md)
}
// gatewayMetadata reproduces what the daemon receives for a JSON request: the
// mux annotates the context from the request's headers, then the interceptor on the
// gateway's client connection stamps the caller's identity. The order matters,
// since the interceptor must win over anything a header put there.
func gatewayMetadata(t *testing.T, req *http.Request, ctx context.Context) metadata.MD {
t.Helper()
mux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(jsonIncomingHeaderMatcher))
annotated, err := runtime.AnnotateContext(ctx, mux, req,
"/daemon.DaemonService/SetConfig",
runtime.WithHTTPPathPattern("/daemon.DaemonService/SetConfig"))
if err != nil {
t.Fatalf("annotate: %v", err)
}
md, ok := metadata.FromOutgoingContext(forwardIdentity(annotated))
if !ok {
t.Fatal("the interceptor produced no metadata")
}
return md
}
// clientCtx is the connection context jsonConnContext would have produced for an
// HTTP client whose identity the gateway could read.
func clientCtx(id ipcauth.Identity, known bool) context.Context {
return context.WithValue(context.Background(), jsonPeerIdentity{},
jsonPeerIdentityValue{id: id, known: known})
}
// An HTTP client must not be able to name its own identity. grpc-gateway turns
// Grpc-Metadata-<key> headers into gRPC metadata, so without the header filter and
// the interceptor overwriting the reserved keys, this request would authorize as
// uid 0.
func TestJSONGateway_ForgedIdentityHeaderIsDropped(t *testing.T) {
req, err := http.NewRequest(http.MethodPost, "http://localhost/daemon.DaemonService/SetConfig", nil)
if err != nil {
t.Fatal(err)
}
req.Header.Set("Grpc-Metadata-X-Netbird-Fwd-Uid", "0")
req.Header.Set("Grpc-Metadata-X-Netbird-Fwd-Gid", "0")
req.Header.Set("Grpc-Metadata-X-Netbird-Fwd", "1")
req.Header.Set("Grpc-Metadata-X-Netbird-Fwd-Sid", "S-1-5-18")
caller := ipcauth.Identity{UID: 31000, GID: 31000}
md := gatewayMetadata(t, req, clientCtx(caller, true))
id, ok := ipcauth.CallerIdentity(daemonSideCtx(t, md))
if !ok {
t.Fatal("the forwarded identity should be usable")
}
if id.IsPrivileged() {
t.Errorf("forged header was believed: authorized as %v", id)
}
if id.UID != caller.UID {
t.Errorf("authorized as uid %d, want the real client %d", id.UID, caller.UID)
}
}
// A request with no headers at all (HTTP/1.0 needs no Host, and a unix socket
// yields no host:port) makes grpc-gateway produce no metadata whatsoever and skip
// its annotators: "if len(pairs) == 0 { return ctx, nil, nil }" in
// runtime/context.go. That is why the identity is stamped by an interceptor
// instead. This is the case that previously reached the gate as the daemon itself.
func TestJSONGateway_HeaderlessRequestIsStillMarkedForwarded(t *testing.T) {
req, err := http.NewRequest(http.MethodPost, "http://localhost/daemon.DaemonService/SetConfig", nil)
if err != nil {
t.Fatal(err)
}
req.Header = http.Header{}
req.Host = ""
caller := ipcauth.Identity{UID: 31000, GID: 31000}
ctx := clientCtx(caller, true)
// Pin the skip path itself: if grpc-gateway ever produced a pair here, this
// test would still pass below while no longer covering what it was written for.
mux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(jsonIncomingHeaderMatcher))
annotated, err := runtime.AnnotateContext(ctx, mux, req,
"/daemon.DaemonService/SetConfig",
runtime.WithHTTPPathPattern("/daemon.DaemonService/SetConfig"))
if err != nil {
t.Fatalf("annotate: %v", err)
}
if md, ok := metadata.FromOutgoingContext(annotated); ok {
t.Fatalf("grpc-gateway produced metadata %v for a headerless request; "+
"this test no longer covers the annotator-skip path", md)
}
md := gatewayMetadata(t, req, ctx)
id, ok := ipcauth.CallerIdentity(daemonSideCtx(t, md))
if !ok {
t.Fatal("the forwarded identity should be usable")
}
if id.UID != caller.UID || id.IsPrivileged() {
t.Errorf("authorized as %v, want the real client uid %d", id, caller.UID)
}
}
// When the gateway cannot read its client's identity (a TCP JSON socket, say) it
// forwards the marker alone. The daemon must then report "unidentified" so the
// privileged operations refuse, rather than falling back to the gateway's own
// identity.
func TestJSONGateway_UnreadableClientIdentityIsUnidentified(t *testing.T) {
req, err := http.NewRequest(http.MethodPost, "http://localhost/daemon.DaemonService/SetConfig", nil)
if err != nil {
t.Fatal(err)
}
md := gatewayMetadata(t, req, clientCtx(ipcauth.Identity{}, false))
if id, ok := ipcauth.CallerIdentity(daemonSideCtx(t, md)); ok {
t.Errorf("a request with no client identity was authorized as %v", id)
}
}
// A request that never passed through jsonConnContext (no stashed identity) must
// also come out unidentified rather than as the daemon.
func TestJSONGateway_MissingConnContextIsUnidentified(t *testing.T) {
req, err := http.NewRequest(http.MethodPost, "http://localhost/daemon.DaemonService/SetConfig", nil)
if err != nil {
t.Fatal(err)
}
md := gatewayMetadata(t, req, context.Background())
if id, ok := ipcauth.CallerIdentity(daemonSideCtx(t, md)); ok {
t.Errorf("a request with no connection context was authorized as %v", id)
}
}
// End to end over a real unix socket: the gateway reads the connecting client's
// identity from the socket itself, so a client cannot present anything else.
func TestJSONGateway_IdentityComesFromTheSocket(t *testing.T) {
mux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(jsonIncomingHeaderMatcher))
type observed struct {
md metadata.MD
}
seen := make(chan observed, 1)
srv := &http.Server{
Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx, err := runtime.AnnotateContext(r.Context(), mux, r,
"/daemon.DaemonService/SetConfig",
runtime.WithHTTPPathPattern("/daemon.DaemonService/SetConfig"))
if err != nil {
t.Errorf("annotate: %v", err)
return
}
md, _ := metadata.FromOutgoingContext(forwardIdentity(ctx))
seen <- observed{md: md}
w.WriteHeader(http.StatusOK)
}),
ReadHeaderTimeout: 5 * time.Second,
ConnContext: jsonConnContext,
}
sock := filepath.Join(t.TempDir(), "http.sock")
ln, err := net.Listen("unix", sock)
if err != nil {
t.Fatal(err)
}
t.Cleanup(func() {
if err := srv.Close(); err != nil {
t.Logf("close server: %v", err)
}
})
go func() {
if err := srv.Serve(ln); err != nil && err != http.ErrServerClosed {
t.Logf("serve: %v", err)
}
}()
conn, err := net.Dial("unix", sock)
if err != nil {
t.Fatal(err)
}
t.Cleanup(func() {
if err := conn.Close(); err != nil {
t.Logf("close conn: %v", err)
}
})
// Forge the identity headers on the wire as well.
request := "POST /daemon.DaemonService/SetConfig HTTP/1.1\r\n" +
"Host: localhost\r\n" +
"Grpc-Metadata-X-Netbird-Fwd: 1\r\n" +
"Grpc-Metadata-X-Netbird-Fwd-Uid: 0\r\n" +
"Content-Length: 0\r\n\r\n"
if _, err := conn.Write([]byte(request)); err != nil {
t.Fatal(err)
}
select {
case got := <-seen:
self, err := ipcauth.CurrentProcessIdentity()
if err != nil {
t.Skipf("cannot read this process's identity: %v", err)
}
// The socket peer is this test process, so that is the identity the
// gateway must forward, not the uid 0 the request asked for.
if uids := got.md.Get("x-netbird-fwd-uid"); len(uids) != 1 {
t.Fatalf("x-netbird-fwd-uid = %v, want exactly the gateway's own value", uids)
}
id, ok := ipcauth.CallerIdentity(daemonSideCtx(t, got.md))
if !ok {
t.Fatal("the forwarded identity should be usable")
}
if id.UID != self.UID {
t.Errorf("authorized as uid %d, want the socket peer %d", id.UID, self.UID)
}
case <-time.After(5 * time.Second):
t.Fatal("the gateway never handled the request")
}
}

View File

@@ -13,6 +13,7 @@ import (
"github.com/spf13/cobra"
"github.com/netbirdio/netbird/client/configs"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/util"
)
@@ -125,6 +126,13 @@ func applyServiceParams(cmd *cobra.Command, params *serviceParams) {
if !rootCmd.PersistentFlags().Changed("daemon-addr") && params.DaemonAddr != "" {
daemonAddr = params.DaemonAddr
// An install that predates named-pipe support has the loopback TCP
// address saved. Callers carry no identity over TCP, so move it to the
// pipe instead of restoring a socket the daemon cannot authorize on.
if migrated, ok := daemonaddr.MigrateLegacy(daemonAddr); ok {
cmd.Printf("Moving the saved daemon address from %s to %s so the daemon can identify its callers\n", daemonAddr, migrated)
daemonAddr = migrated
}
}
if !serviceCmd.PersistentFlags().Changed("json-socket") && params.JSONSocket != "" {

View File

@@ -0,0 +1,14 @@
//go:build !windows
package cmd
import (
"fmt"
"net"
)
// listenNamedPipe is Windows-only: no other platform serves the daemon on a
// named pipe.
func listenNamedPipe(string) (net.Listener, string, error) {
return nil, "", fmt.Errorf("named pipes are only supported on Windows")
}

View File

@@ -0,0 +1,41 @@
//go:build windows
package cmd
import (
"errors"
"fmt"
"net"
"github.com/Microsoft/go-winio"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/ipcauth"
)
// listenNamedPipe creates the daemon control pipe and reports the path it ended
// up on. The security descriptor lets any local caller connect, as a Unix socket
// at 0666 does, and the privileged operations are authorized separately from the
// caller's token.
//
// The protected name comes first so that an unprivileged process cannot take the
// name before the service does. Creating it requires being an administrator or
// LocalSystem, so a daemon an ordinary user runs themselves, as in netstack mode,
// falls back to the plain name; clients try both and check who serves them.
func listenNamedPipe(name string) (net.Listener, string, error) {
var errs []error
for _, path := range daemonaddr.PipePaths(name) {
listener, err := winio.ListenPipe(path, &winio.PipeConfig{
SecurityDescriptor: ipcauth.DefaultPipeSDDL(),
})
if err != nil {
log.Debugf("not serving the daemon on %s: %v", path, err)
errs = append(errs, fmt.Errorf("%s: %w", path, err))
continue
}
return listener, path, nil
}
return nil, "", errors.Join(errs...)
}

View File

@@ -26,6 +26,14 @@ func listenOnAddress(addr string) (*socketListener, error) {
return nil, err
}
if network == "npipe" {
listener, path, err := listenNamedPipe(address)
if err != nil {
return nil, err
}
return &socketListener{Listener: listener, network: network, address: path}, nil
}
if network == "unix" {
removeStaleUnixSocket(address)
}
@@ -41,11 +49,11 @@ func listenOnAddress(addr string) (*socketListener, error) {
func parseListenAddress(addr string) (string, string, error) {
network, address, ok := strings.Cut(addr, "://")
if !ok || network == "" || address == "" {
return "", "", fmt.Errorf("address must be in [unix|tcp]://[path|host:port] format: %q", addr)
return "", "", fmt.Errorf("address must be in [unix|tcp|npipe]://[path|host:port|name] format: %q", addr)
}
switch network {
case "unix", "tcp":
case "unix", "tcp", "npipe":
return network, address, nil
default:
return "", "", fmt.Errorf("unsupported daemon address protocol: %v", network)

View File

@@ -325,7 +325,7 @@ func runInDaemonMode(ctx context.Context, cmd *cobra.Command, pm *profilemanager
if st, ok := gstatus.FromError(err); ok && st.Code() == codes.Unavailable {
log.Warnf("setConfig method is not available in the daemon: %s", st.Message())
} else {
return fmt.Errorf("call service setConfig method: %v", err)
return daemonCallError("call service setConfig method", err)
}
}
@@ -379,7 +379,7 @@ func doDaemonUp(ctx context.Context, cmd *cobra.Command, client proto.DaemonServ
}
if loginErr != nil {
return fmt.Errorf("login failed: %v", loginErr)
return daemonCallError("login failed", loginErr)
}
if loginResp.NeedsSSOLogin {
@@ -392,7 +392,7 @@ func doDaemonUp(ctx context.Context, cmd *cobra.Command, client proto.DaemonServ
ProfileName: &profileID,
Username: &username,
}); err != nil {
return fmt.Errorf("call service up method: %v", err)
return daemonCallError("call service up method", err)
}
return nil

View File

@@ -464,6 +464,8 @@ func Test_RemovePeer(t *testing.T) {
}
func Test_ConnectPeers(t *testing.T) {
t.Setenv("NB_DISABLE_EBPF_WG_PROXY", "true")
peer1ifaceName := fmt.Sprintf("utun%d", WgIntNumber+400)
peer1wgIP := netip.MustParsePrefix("10.99.99.17/30")
peer1Key, _ := wgtypes.GeneratePrivateKey()
@@ -505,12 +507,8 @@ func Test_ConnectPeers(t *testing.T) {
t.Fatal(err)
}
localIP, err := getLocalIP()
if err != nil {
t.Fatal(err)
}
peer1endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP, peer1wgPort))
localIP1 := "127.0.0.1"
peer1endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP1, peer1wgPort))
if err != nil {
t.Fatal(err)
}
@@ -546,7 +544,8 @@ func Test_ConnectPeers(t *testing.T) {
t.Fatal(err)
}
peer2endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP, peer2wgPort))
localIP2 := "127.0.0.1"
peer2endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", localIP2, peer2wgPort))
if err != nil {
t.Fatal(err)
}
@@ -569,17 +568,17 @@ func Test_ConnectPeers(t *testing.T) {
if err != nil {
t.Fatal(err)
}
// todo: investigate why in some tests execution we need 30s
// The peers use userspace WireGuard (stdnet transport). A tight busy-loop
// here starves the wireguard-go goroutines that process the handshake, so
// poll on a ticker instead and yield the CPU between checks. WireGuard also
// only retries a lost handshake initiation every REKEY_TIMEOUT (5s), which
// is why the overall wait can occasionally stretch to tens of seconds.
timeout := 30 * time.Second
timeoutChannel := time.After(timeout)
ticker := time.NewTicker(500 * time.Millisecond)
defer ticker.Stop()
for {
select {
case <-timeoutChannel:
t.Fatalf("waiting for peer handshake timeout after %s", timeout.String())
default:
}
peer, gpErr := getPeer(peer1ifaceName, peer2Key.PublicKey().String())
if gpErr != nil {
t.Fatal(gpErr)
@@ -588,6 +587,12 @@ func Test_ConnectPeers(t *testing.T) {
t.Log("peers successfully handshake")
break
}
select {
case <-timeoutChannel:
t.Fatalf("waiting for peer handshake timeout after %s", timeout.String())
case <-ticker.C:
}
}
}
@@ -615,28 +620,3 @@ func getPeer(ifaceName, peerPubKey string) (wgtypes.Peer, error) {
}
return wgtypes.Peer{}, fmt.Errorf("peer not found")
}
func getLocalIP() (string, error) {
// Get all interfaces
addrs, err := net.InterfaceAddrs()
if err != nil {
return "", err
}
for _, addr := range addrs {
ipNet, ok := addr.(*net.IPNet)
if !ok {
continue
}
if ipNet.IP.IsLoopback() {
continue
}
if ipNet.IP.To4() == nil {
continue
}
return ipNet.IP.String(), nil
}
return "", fmt.Errorf("no local IP found")
}

View File

@@ -49,11 +49,21 @@ type ConnMgr struct {
// engine.syncMsgMux; all other reads stay under engine.syncMsgMux only.
lazyConnMgrMu sync.RWMutex
// reconcileRoutedIPs re-applies a peer's routed allowed IPs after its lazy wake endpoint is
// (re)armed (Mode A at arm time). Injected by the engine; nil disables the reconcile.
reconcileRoutedIPs func(peerKey string) error
wg sync.WaitGroup
lazyCtx context.Context
lazyCtxCancel context.CancelFunc
}
// SetRoutedIPsReconciler injects the callback used to re-apply a peer's routed allowed IPs when
// its lazy wake endpoint is (re)armed. Must be called before the lazy manager starts.
func (e *ConnMgr) SetRoutedIPsReconciler(fn func(peerKey string) error) {
e.reconcileRoutedIPs = fn
}
func NewConnMgr(engineConfig *EngineConfig, statusRecorder *peer.Status, peerStore *peerstore.Store, iface lazyconn.WGIface) *ConnMgr {
e := &ConnMgr{
peerStore: peerStore,
@@ -291,6 +301,7 @@ func (e *ConnMgr) Close() {
func (e *ConnMgr) initLazyManager(engineCtx context.Context) {
cfg := manager.Config{
InactivityThreshold: inactivityThresholdEnv(),
ReconcileAllowedIPs: e.reconcileRoutedIPs,
}
e.lazyConnMgrMu.Lock()
@@ -374,11 +385,20 @@ func inactivityThresholdEnv() *time.Duration {
return nil
}
parsedMinutes, err := strconv.Atoi(envValue)
if err != nil || parsedMinutes <= 0 {
return nil
// Documented format: a Go duration such as "30m" or "1h".
if d, err := time.ParseDuration(envValue); err == nil {
if d <= 0 {
return nil
}
return &d
}
d := time.Duration(parsedMinutes) * time.Minute
return &d
// Backwards compatibility: a bare integer used to be interpreted as minutes.
if parsedMinutes, err := strconv.Atoi(envValue); err == nil && parsedMinutes > 0 {
d := time.Duration(parsedMinutes) * time.Minute
return &d
}
log.Warnf("invalid %s value %q: expected a Go duration such as 30m or 1h", lazyconn.EnvInactivityThreshold, envValue)
return nil
}

View File

@@ -104,3 +104,38 @@ func TestConnMgr_ActivatePeerConcurrentWithLifecycle(t *testing.T) {
close(done)
wg.Wait()
}
func TestInactivityThresholdEnv(t *testing.T) {
tests := []struct {
name string
val string
want *time.Duration
}{
{name: "unset", val: "", want: nil},
{name: "go duration minutes", val: "30m", want: durPtr(30 * time.Minute)},
{name: "go duration hours", val: "1h", want: durPtr(time.Hour)},
{name: "go duration seconds", val: "90s", want: durPtr(90 * time.Second)},
{name: "bare integer is minutes (backwards compat)", val: "5", want: durPtr(5 * time.Minute)},
{name: "zero duration", val: "0s", want: nil},
{name: "zero integer", val: "0", want: nil},
{name: "negative duration", val: "-5m", want: nil},
{name: "garbage", val: "abc", want: nil},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
t.Setenv(lazyconn.EnvInactivityThreshold, tc.val)
got := inactivityThresholdEnv()
switch {
case tc.want == nil && got != nil:
t.Fatalf("want nil, got %v", *got)
case tc.want != nil && got == nil:
t.Fatalf("want %v, got nil", *tc.want)
case tc.want != nil && *got != *tc.want:
t.Fatalf("want %v, got %v", *tc.want, *got)
}
})
}
}
func durPtr(d time.Duration) *time.Duration { return &d }

View File

@@ -34,6 +34,7 @@ import (
"github.com/netbirdio/netbird/client/internal/profilemanager"
"github.com/netbirdio/netbird/client/internal/statemanager"
"github.com/netbirdio/netbird/client/internal/stdnet"
"github.com/netbirdio/netbird/client/internal/tunnelnotifier"
"github.com/netbirdio/netbird/client/internal/updater"
"github.com/netbirdio/netbird/client/internal/updater/installer"
nbnet "github.com/netbirdio/netbird/client/net"
@@ -136,10 +137,13 @@ func (c *ConnectClient) RunOniOS(
// Set GC percent to 5% to reduce memory usage as iOS only allows 50MB of memory for the extension.
debug.SetGCPercent(5)
notifier := tunnelnotifier.New(networkChangeListener, dnsManager)
defer notifier.Close()
mobileDependency := MobileDependency{
FileDescriptor: fileDescriptor,
NetworkChangeListener: networkChangeListener,
DnsManager: dnsManager,
NetworkChangeListener: notifier,
DnsManager: notifier,
StateFilePath: stateFilePath,
TempDir: cacheDir,
}

View File

@@ -0,0 +1,15 @@
package daemonaddr
// DaemonRunsAsSelf reports whether the daemon listening at addr runs as this very
// user. That is what makes an unprivileged daemon authorize this process for the
// changes it otherwise restricts to root or an administrator, so a client can tell
// up front whether those controls are usable instead of letting a save fail.
//
// It is answered from the ownership of the socket or pipe the daemon created, so it
// costs no round trip and needs no cooperation from the daemon. Ownership that
// cannot be read is reported as false, including for a TCP address, so a caller
// reading this as "the daemon would allow it" fails closed. The daemon remains the
// only thing that authorizes anything: this only decides what a client offers.
func DaemonRunsAsSelf(addr string) bool {
return daemonRunsAsSelf(addr)
}

View File

@@ -0,0 +1,40 @@
//go:build !windows
package daemonaddr
import (
"os"
"strings"
"syscall"
log "github.com/sirupsen/logrus"
)
// daemonRunsAsSelf compares the owner of the daemon's Unix socket with this
// process's uid. Root is not treated specially here: a root caller is privileged
// on its own merits, and a root-owned socket says nothing about the caller.
func daemonRunsAsSelf(addr string) bool {
path, ok := strings.CutPrefix(addr, "unix://")
if !ok {
return false
}
info, err := os.Stat(path)
if err != nil {
log.Debugf("stat daemon socket %s: %v", path, err)
return false
}
// Only a socket says anything about a daemon. A directory or a leftover
// regular file at that path is not one, and reading it as "the daemon runs as
// us" would offer controls the daemon then refuses.
if info.Mode()&os.ModeSocket == 0 {
return false
}
stat, ok := info.Sys().(*syscall.Stat_t)
if !ok {
return false
}
return stat.Uid == uint32(os.Getuid())
}

View File

@@ -0,0 +1,62 @@
//go:build !windows
package daemonaddr
import (
"net"
"os"
"path/filepath"
"testing"
)
// A socket this user created means the daemon runs as this user, which is the
// rootless case where the daemon delegates its authority to its own identity.
func TestDaemonRunsAsSelf_OwnSocket(t *testing.T) {
path := filepath.Join(t.TempDir(), "netbird.sock")
ln, err := net.Listen("unix", path)
if err != nil {
t.Fatalf("listen: %v", err)
}
t.Cleanup(func() {
if err := ln.Close(); err != nil {
t.Logf("close listener: %v", err)
}
})
if !DaemonRunsAsSelf("unix://" + path) {
t.Error("a socket owned by this user must count as the daemon running as us")
}
}
// Everything that is not a readable socket of ours has to answer false, because
// the caller reads a true as "the daemon would authorize me".
func TestDaemonRunsAsSelf_FailsClosed(t *testing.T) {
dir := t.TempDir()
// A socket owned by another user, which is what a root-run daemon looks like
// to an unprivileged client. Only assertable when we are not root ourselves.
rootOwned := "unix:///var/run/netbird.sock"
if _, err := os.Stat("/var/run/netbird.sock"); err == nil && os.Getuid() != 0 {
if DaemonRunsAsSelf(rootOwned) {
t.Error("a socket owned by another user must not count as ours")
}
}
for name, addr := range map[string]string{
"missing socket": "unix://" + filepath.Join(dir, "absent.sock"),
"tcp address": "tcp://127.0.0.1:41731",
"named pipe": "npipe://netbird",
"empty": "",
"no scheme": filepath.Join(dir, "absent.sock"),
"directory": "unix://" + dir,
"unknown scheme": "http://localhost:8080",
"scheme only": "unix://",
"relative socket": "unix://netbird.sock",
} {
t.Run(name, func(t *testing.T) {
if DaemonRunsAsSelf(addr) {
t.Errorf("%q must not count as a daemon running as us", addr)
}
})
}
}

View File

@@ -0,0 +1,42 @@
//go:build windows
package daemonaddr
import (
"context"
"strings"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/internal/ipcauth"
)
// daemonRunsAsSelf reads the owner of the daemon's pipe. A daemon running as the
// service account owns its pipe as LocalSystem, and an elevated one as
// BUILTIN\Administrators, so only a daemon the user started themselves matches.
func daemonRunsAsSelf(addr string) bool {
name, ok := strings.CutPrefix(addr, pipeScheme)
if !ok {
return false
}
for _, path := range PipePaths(name) {
// Bounded: this runs on the UI's path for deciding which controls to
// offer, so a pipe that does not answer promptly must not stall it. A
// timeout leaves the caller unprivileged, which only disables controls.
ctx, cancel := context.WithTimeout(context.Background(), probeTimeout)
conn, err := dialPipe(ctx, path)
cancel()
if err != nil {
continue
}
owned := ipcauth.PipeOwnedBySelf(conn)
if cerr := conn.Close(); cerr != nil {
log.Debugf("close daemon pipe %s after ownership check: %v", path, cerr)
}
return owned
}
return false
}

View File

@@ -0,0 +1,103 @@
package daemonaddr
import (
"context"
"net"
"runtime"
"strings"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
)
const (
// WindowsPipeAddr is the default daemon address on Windows. A named pipe
// carries the connecting process's token, which loopback TCP does not, so
// it is the only Windows transport on which the daemon can tell who is
// calling it.
WindowsPipeAddr = "npipe://netbird"
// legacyWindowsAddr is the loopback-TCP address the Windows daemon used
// before named-pipe support.
legacyWindowsAddr = "tcp://127.0.0.1:41731"
pipeScheme = "npipe://"
// protectedPrefix is the NPFS namespace in which only LocalSystem and
// members of BUILTIN\Administrators may create a pipe. A daemon running as
// the service account creates its pipe there so that an unprivileged process
// cannot pre-create the name, which would keep the daemon from starting and
// leave callers talking to the squatter. Opening such a pipe needs no
// privilege, so unprivileged clients still reach the daemon.
protectedPrefix = `ProtectedPrefix\Administrators\`
)
// DialTarget returns the gRPC dial target and transport options for a daemon
// address. The npipe scheme needs a context dialer because gRPC has no
// named-pipe resolver; unix and tcp are handled by gRPC itself.
func DialTarget(addr string) (string, []grpc.DialOption) {
opts := []grpc.DialOption{grpc.WithTransportCredentials(insecure.NewCredentials())}
if name, ok := strings.CutPrefix(addr, pipeScheme); ok {
paths := PipePaths(name)
opts = append(opts, grpc.WithContextDialer(func(ctx context.Context, _ string) (net.Conn, error) {
return dialPipePaths(ctx, paths)
}))
return "passthrough:///netbird-daemon-pipe", opts
}
return strings.TrimPrefix(addr, "tcp://"), opts
}
// PipePath maps an npipe address name ("netbird", from "npipe://netbird") to a
// Windows named-pipe path (\\.\pipe\netbird). A fully qualified path is left as
// is.
func PipePath(name string) string {
if strings.HasPrefix(name, `\\`) {
return name
}
return `\\.\pipe\` + name
}
// PipePaths returns the paths a daemon control pipe may live at for an npipe
// address name, in the order both sides must try them: the protected name first,
// then the plain one.
//
// The daemon serves the first it can create, which is the protected name when it
// runs as the service account and the plain one when it runs as an ordinary user,
// as it does in netstack mode. Clients therefore have to try both, and because a
// client cannot tell from the name alone who created the pipe, the plain name is
// only usable once the server's identity has been checked: see
// verifyPipeServer.
//
// A fully qualified path is what the operator asked for and is used as is.
func PipePaths(name string) []string {
if strings.HasPrefix(name, `\\`) {
return []string{name}
}
return []string{PipePath(protectedPrefix + name), PipePath(name)}
}
// IsProtectedPipePath reports whether a pipe path is in the namespace only an
// administrator or LocalSystem can create in, which is what lets a client trust
// such a pipe from its name alone.
func IsProtectedPipePath(path string) bool {
return strings.HasPrefix(path, `\\.\pipe\`+protectedPrefix)
}
// MigrateLegacy upgrades the pre-named-pipe Windows daemon address to the named
// pipe, reporting whether it rewrote the address. Existing installs persist the
// daemon address, so without this an upgraded daemon would keep listening on
// loopback TCP, where callers carry no identity and privileged operations would
// have to be refused for everyone. Only the exact legacy default is rewritten:
// a deliberately chosen custom address is left alone.
func MigrateLegacy(addr string) (string, bool) {
return migrateLegacyForOS(runtime.GOOS, addr)
}
func migrateLegacyForOS(goos, addr string) (string, bool) {
if goos == "windows" && addr == legacyWindowsAddr {
return WindowsPipeAddr, true
}
return addr, false
}

View File

@@ -0,0 +1,15 @@
//go:build !windows
package daemonaddr
import (
"context"
"fmt"
"net"
)
// dialPipePaths is Windows-only: no other platform serves the daemon on a named
// pipe.
func dialPipePaths(context.Context, []string) (net.Conn, error) {
return nil, fmt.Errorf("named pipes are only supported on Windows")
}

View File

@@ -0,0 +1,30 @@
package daemonaddr
import (
"slices"
"testing"
)
// The protected name must be tried before the plain one on both sides: it is the
// one an unprivileged process cannot create, so preferring it is what keeps a
// squatter from owning the name the service daemon would otherwise use.
func TestPipePaths_PrefersTheProtectedName(t *testing.T) {
got := PipePaths("netbird")
want := []string{
`\\.\pipe\ProtectedPrefix\Administrators\netbird`,
`\\.\pipe\netbird`,
}
if !slices.Equal(got, want) {
t.Errorf("PipePaths = %q, want %q", got, want)
}
}
// An operator who passes a full path chose exactly one pipe, so neither side may
// look anywhere else.
func TestPipePaths_QualifiedPathIsUsedAsIs(t *testing.T) {
path := `\\.\pipe\custom-netbird`
got := PipePaths(path)
if !slices.Equal(got, []string{path}) {
t.Errorf("PipePaths = %q, want just %q", got, path)
}
}

View File

@@ -0,0 +1,59 @@
//go:build windows
package daemonaddr
import (
"context"
"errors"
"fmt"
"net"
"github.com/Microsoft/go-winio"
log "github.com/sirupsen/logrus"
"golang.org/x/sys/windows"
"github.com/netbirdio/netbird/client/internal/ipcauth"
)
// dialPipePaths connects to the first path that answers with a pipe server this
// client may trust, and returns the last error when none does.
func dialPipePaths(ctx context.Context, paths []string) (net.Conn, error) {
var lastErr error
for _, path := range paths {
conn, err := dialPipe(ctx, path)
if err != nil {
log.Debugf("dial daemon pipe %s: %v", path, err)
lastErr = err
continue
}
// A pipe in the protected namespace could only have been created by an
// administrator or LocalSystem, so its name is the guarantee. Any other
// name has to be checked, because any local user can create one.
if !IsProtectedPipePath(path) {
if err := ipcauth.PipeServerTrusted(conn); err != nil {
if closeErr := conn.Close(); closeErr != nil {
log.Debugf("close untrusted pipe %s: %v", path, closeErr)
}
lastErr = fmt.Errorf("%s: %w", path, err)
continue
}
}
return conn, nil
}
if lastErr == nil {
lastErr = errors.New("no daemon pipe to connect to")
}
return nil, lastErr
}
// dialPipe connects to the daemon control pipe at SECURITY_IDENTIFICATION.
// winio's plain DialPipe connects at SECURITY_ANONYMOUS, under which the daemon
// cannot read the caller's token at all. Identification lets the daemon read the
// caller's SID and groups without granting it the ability to act as the caller.
func dialPipe(ctx context.Context, path string) (net.Conn, error) {
access := uint32(windows.GENERIC_READ | windows.GENERIC_WRITE)
return winio.DialPipeAccessImpLevel(ctx, path, access, winio.PipeImpLevelIdentification)
}

View File

@@ -0,0 +1,9 @@
//go:build !windows
package daemonaddr
// ResolveDaemonAddr is a no-op off Windows, where there is no named-pipe
// default to fall back from.
func ResolveDaemonAddr(addr string) string {
return addr
}

View File

@@ -0,0 +1,82 @@
//go:build windows
package daemonaddr
import (
"net"
"strings"
"time"
"github.com/Microsoft/go-winio"
log "github.com/sirupsen/logrus"
)
// probeTimeout bounds each transport probe. Both are local, so a daemon that is
// listening answers immediately and one that is not fails immediately.
const probeTimeout = 300 * time.Millisecond
// ResolveDaemonAddr keeps a client on the named pipe and never silently moves it
// off. When the pipe does not answer it checks the legacy loopback TCP address, so
// a client meeting a daemon that has not restarted since the upgrade can say what
// is wrong, but it does not connect there.
//
// Using that address automatically would be a downgrade the user never asked for:
// any local process can bind 127.0.0.1 while the daemon is not listening, and the
// transport carries no caller identity, so a client that accepted whatever answered
// would hand a setup key, a pre-shared key or an SSO prompt to a local impostor. An
// operator who needs the legacy address during the upgrade window can still pass
// --daemon-addr explicitly, which is a deliberate choice and still refuses the
// privileged operations.
//
// Only the pipe address is resolved. A custom address is left alone, though passing
// --daemon-addr npipe://netbird explicitly is indistinguishable from the default
// here, so it is treated the same way.
func ResolveDaemonAddr(addr string) string {
if addr != WindowsPipeAddr {
return addr
}
for _, path := range PipePaths("netbird") {
if pipeAvailable(path) {
return addr
}
}
if tcpAvailable(legacyWindowsAddr) {
log.Warnf("the daemon is not serving %s, but something is listening on the legacy %s. "+
"Restart the NetBird service so it serves the pipe. That address is not used automatically: "+
"any local user can bind it and it carries no caller identity, so pass --daemon-addr %s "+
"explicitly if you accept that",
WindowsPipeAddr, legacyWindowsAddr, legacyWindowsAddr)
}
return addr
}
func pipeAvailable(path string) bool {
timeout := probeTimeout
conn, err := winio.DialPipe(path, &timeout)
if err != nil {
return false
}
if err := conn.Close(); err != nil {
log.Debugf("close daemon pipe probe: %v", err)
}
return true
}
func tcpAvailable(addr string) bool {
host := addr
if _, after, ok := strings.Cut(addr, "://"); ok {
host = after
}
conn, err := net.DialTimeout("tcp", host, probeTimeout)
if err != nil {
return false
}
if err := conn.Close(); err != nil {
log.Debugf("close daemon TCP probe: %v", err)
}
return true
}

View File

@@ -52,11 +52,14 @@ int xdp_dns_fwd(struct iphdr *ip, struct udphdr *udp) {
if (udp->dest == GENERAL_DNS_PORT && ip->daddr == dns_ip) {
udp->dest = dns_port;
// Clear the now-stale checksum; zero means "not computed" for IPv4.
udp->check = 0;
return XDP_PASS;
}
if (udp->source == dns_port && ip->saddr == dns_ip) {
udp->source = GENERAL_DNS_PORT;
udp->check = 0;
return XDP_PASS;
}

View File

@@ -50,5 +50,11 @@ int xdp_wg_proxy(struct iphdr *ip, struct udphdr *udp) {
__be16 new_dst_port = htons(proxy_port);
udp->dest = new_dst_port;
udp->source = new_src_port;
// The ports are covered by the UDP checksum. This is an IPv4 loopback hop
// and the payload is already integrity-protected, so clear the checksum (a
// zero UDP checksum means "not computed" for IPv4) rather than leave a
// stale value the kernel would drop as UDP_CSUM.
udp->check = 0;
return XDP_PASS;
}

View File

@@ -663,6 +663,12 @@ func (e *Engine) Start(netbirdConfig *mgmProto.NetbirdConfig, mgmtURL *url.URL)
iceCfg := e.createICEConfig()
e.connMgr = NewConnMgr(e.config, e.statusRecorder, e.peerStore, wgIface)
e.connMgr.SetRoutedIPsReconciler(func(peerKey string) error {
if e.routeManager == nil {
return nil
}
return e.routeManager.ReconcilePeerAllowedIPs(peerKey)
})
e.connMgr.Start(e.ctx)
// Wire DNS-time lazy-connection warm-up now that the connection manager

View File

@@ -0,0 +1,31 @@
//go:build !linux && !darwin && !freebsd && !windows
package ipcauth
import (
"errors"
"net"
"google.golang.org/grpc/credentials"
)
// errUnsupported is returned on platforms with no local peer-identity
// primitive, so consumers fail closed instead of guessing an identity.
var errUnsupported = errors.New("peer identity is not available on this platform")
// NewTransportCredentials returns nil: without a peer-identity primitive the
// daemon cannot authenticate local callers, and the caller must treat that as
// "authorization cannot be enforced".
func NewTransportCredentials() credentials.TransportCredentials {
return nil
}
// PeerIdentity always fails on this platform.
func PeerIdentity(net.Conn) (Identity, error) {
return Identity{}, errUnsupported
}
// ConnIdentity always fails on this platform.
func ConnIdentity(net.Conn) (Identity, error) {
return Identity{}, errUnsupported
}

View File

@@ -0,0 +1,56 @@
//go:build linux || darwin || freebsd
package ipcauth
import (
"context"
"net"
"google.golang.org/grpc/credentials"
)
// NewTransportCredentials returns gRPC transport credentials that expose the
// caller's kernel-authenticated identity via IdentityFromContext. It returns
// nil on platforms that have no peer-identity primitive, which the caller must
// treat as "authorization cannot be enforced".
//
// The handshake exchanges no bytes on the wire, so a client dialing with
// insecure credentials interoperates with a server using these. That keeps
// older CLI and UI binaries working against an upgraded daemon.
func NewTransportCredentials() credentials.TransportCredentials {
return unixCreds{}
}
// ConnIdentity extracts the caller's identity from an accepted local IPC
// connection. It is shared by the gRPC transport credentials and by the JSON
// gateway, which reads the identity of its own HTTP clients.
func ConnIdentity(conn net.Conn) (Identity, error) {
return PeerIdentity(conn)
}
type unixCreds struct{}
func (unixCreds) ClientHandshake(_ context.Context, _ string, conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
return conn, AuthInfo{}, nil
}
// ServerHandshake extracts the peer identity and fails closed when it cannot
// be read, so a connection whose caller is unknown never reaches a handler.
func (unixCreds) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
id, err := ConnIdentity(conn)
if err != nil {
return nil, nil, err
}
return conn, AuthInfo{
CommonAuthInfo: credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity},
Identity: id,
}, nil
}
func (unixCreds) Info() credentials.ProtocolInfo {
return credentials.ProtocolInfo{SecurityProtocol: AuthInfo{}.AuthType()}
}
func (unixCreds) Clone() credentials.TransportCredentials { return unixCreds{} }
func (unixCreds) OverrideServerName(string) error { return nil }

View File

@@ -0,0 +1,194 @@
//go:build windows
package ipcauth
import (
"context"
"fmt"
"net"
"runtime"
log "github.com/sirupsen/logrus"
"golang.org/x/sys/windows"
"google.golang.org/grpc/credentials"
)
var (
modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
procImpersonateNamedPipeClient = modadvapi32.NewProc("ImpersonateNamedPipeClient")
)
// DefaultPipeSDDL is the security descriptor for the daemon control pipe.
//
// D:P protected DACL, no inheritance
// (A;;GA;;;SY) allow GENERIC_ALL to LocalSystem (the daemon's service account)
// (A;;GA;;;WD) allow GENERIC_ALL to Everyone
//
// Any local caller may connect, as with a Unix socket at 0666; what a caller may
// actually do is decided from its token, not from the DACL. Remote callers are not
// a concern here: winio.ListenPipe creates the pipe with
// FILE_PIPE_REJECT_REMOTE_CLIENTS, so NPFS rejects connections from other machines
// before the descriptor is consulted.
//
// A deny ACE on the NETWORK SID would not add anything and would break callers:
// that SID is present in any network-logon token, which includes OpenSSH and WinRM
// sessions, so it denies administrators driving the CLI over SSH and denies the
// daemon itself when started from such a session.
func DefaultPipeSDDL() string {
return "D:P(A;;GA;;;SY)(A;;GA;;;WD)"
}
// NewTransportCredentials returns gRPC transport credentials that derive the
// caller's identity from the named-pipe client token.
//
// The client must connect at SECURITY_IDENTIFICATION for the daemon to be able
// to read its token, which is what DialNamedPipe does.
func NewTransportCredentials() credentials.TransportCredentials {
return winpipeCreds{}
}
// ConnIdentity extracts the caller's identity from an accepted named-pipe
// connection by impersonating the pipe client and reading its token. It is
// shared by the gRPC transport credentials and by the JSON gateway, which
// reads the identity of its own HTTP clients.
func ConnIdentity(conn net.Conn) (Identity, error) {
// go-winio's pipe connection embeds *win32File, which exposes Fd().
fdConn, ok := conn.(interface{ Fd() uintptr })
if !ok {
return Identity{}, fmt.Errorf("connection %T does not expose a pipe handle", conn)
}
return pipeClientIdentity(windows.Handle(fdConn.Fd()))
}
type winpipeCreds struct{}
func (winpipeCreds) ClientHandshake(_ context.Context, _ string, conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
return conn, AuthInfo{}, nil
}
// ServerHandshake extracts the connecting client's identity and fails closed
// when the handle or token cannot be read, so a connection whose caller is
// unknown never reaches a handler.
func (winpipeCreds) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
id, err := ConnIdentity(conn)
if err != nil {
return nil, nil, err
}
return conn, AuthInfo{
CommonAuthInfo: credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity},
Identity: id,
}, nil
}
func (winpipeCreds) Info() credentials.ProtocolInfo {
return credentials.ProtocolInfo{SecurityProtocol: AuthInfo{}.AuthType()}
}
func (winpipeCreds) Clone() credentials.TransportCredentials { return winpipeCreds{} }
func (winpipeCreds) OverrideServerName(string) error { return nil }
// pipeClientIdentity reads the connecting client's user SID, usable group
// SIDs, and elevation state by impersonating the pipe client on this thread
// and reading the resulting impersonation token.
func pipeClientIdentity(handle windows.Handle) (id Identity, err error) {
// Impersonation is per-thread, so the goroutine must stay on this thread
// until RevertToSelf, otherwise an unrelated goroutine could inherit the
// impersonated context.
runtime.LockOSThread()
// The thread only goes back to the runtime's pool once it is provably no
// longer impersonating the client. If the revert fails, leaving it locked
// makes Go terminate it when this goroutine exits, which costs one thread
// and keeps a thread running as the client from ever being reused.
clean := false
defer func() {
if clean {
runtime.UnlockOSThread()
}
}()
if err = impersonateNamedPipeClient(handle); err != nil {
clean = true
return Identity{}, fmt.Errorf("impersonate named pipe client: %w", err)
}
defer func() {
// Surface the revert failure only when nothing else failed: leaving
// the thread impersonated is worse than the original error.
revErr := windows.RevertToSelf()
if revErr != nil {
if err == nil {
err = fmt.Errorf("revert impersonation: %w", revErr)
}
return
}
clean = true
}()
// openAsSelf=true opens the token with the daemon's own process context
// rather than the impersonated client's, so the open cannot fail because
// the client lacks access to its own token.
var token windows.Token
if err = windows.OpenThreadToken(windows.CurrentThread(), windows.TOKEN_QUERY, true, &token); err != nil {
return Identity{}, fmt.Errorf("open thread token: %w", err)
}
defer func() {
if cerr := token.Close(); cerr != nil {
log.Debugf("close client token: %v", cerr)
}
}()
return identityFromToken(token)
}
// identityFromToken reads the user SID, usable group SIDs and elevation state
// out of a Windows token.
func identityFromToken(token windows.Token) (Identity, error) {
user, err := token.GetTokenUser()
if err != nil {
return Identity{}, fmt.Errorf("read token user: %w", err)
}
groups, err := tokenGroupSIDs(token)
if err != nil {
return Identity{}, err
}
return Identity{
SID: user.User.Sid.String(),
Groups: groups,
Elevated: token.IsElevated(),
}, nil
}
// tokenGroupSIDs returns the SIDs of the groups the token can actually
// exercise. Groups that are disabled or marked deny-only are skipped: a
// UAC-filtered administrator carries BUILTIN\Administrators as deny-only, and
// treating that as membership would hand every admin account privilege it
// cannot currently use.
func tokenGroupSIDs(token windows.Token) ([]string, error) {
tg, err := token.GetTokenGroups()
if err != nil {
return nil, fmt.Errorf("read token groups: %w", err)
}
var sids []string
for _, g := range tg.AllGroups() {
if g.Attributes&windows.SE_GROUP_ENABLED == 0 {
continue
}
if g.Attributes&windows.SE_GROUP_USE_FOR_DENY_ONLY != 0 {
continue
}
sids = append(sids, g.Sid.String())
}
return sids, nil
}
func impersonateNamedPipeClient(h windows.Handle) error {
r, _, e := procImpersonateNamedPipeClient.Call(uintptr(h))
if r == 0 {
return e
}
return nil
}

View File

@@ -0,0 +1,272 @@
package ipcauth
import (
"context"
"crypto/rand"
"crypto/subtle"
"encoding/hex"
"fmt"
"slices"
"strconv"
"strings"
"google.golang.org/grpc/metadata"
)
// Metadata keys the local JSON gateway uses to forward the identity of its own
// HTTP client to the daemon. The gateway runs inside the daemon process and
// re-dials the daemon over the control socket, so without forwarding every
// JSON request would appear to come from the daemon itself.
const (
// mdFwd marks a request as forwarded by the JSON gateway. It is always
// set, even when the gateway could not read its client's identity, so the
// daemon can tell "no identity available" apart from "not forwarded".
mdFwd = "x-netbird-fwd"
mdFwdUID = "x-netbird-fwd-uid" // Unix user ID
mdFwdGID = "x-netbird-fwd-gid" // Unix primary group ID
mdFwdSID = "x-netbird-fwd-sid" // Windows user SID
mdFwdGroup = "x-netbird-fwd-group" // Windows group SID, repeated
mdFwdElevated = "x-netbird-fwd-elevated" // Windows, "1" when elevated
// mdFwdProof proves the forwarded identity was stamped by this process. The
// gateway runs inside the daemon, so a secret held in memory is available to
// the only legitimate producer and to nothing else.
mdFwdProof = "x-netbird-fwd-proof"
)
// forwardKeys is every metadata key the gateway sets. An HTTP client must never
// be able to supply one itself: see IsReservedForwardKey.
var forwardKeys = []string{mdFwd, mdFwdUID, mdFwdGID, mdFwdSID, mdFwdGroup, mdFwdElevated, mdFwdProof}
// forwardProof authenticates the gateway's forwarding metadata. It is generated
// once per daemon process and never leaves it: it is not written to disk, not
// logged, and not sent anywhere except over the daemon's own control socket to
// itself.
//
// Without it, trusting a forwarded identity rests on every layer in front of it
// stripping incoming forwarding keys, and on each key's value shape being
// distinguishable from an injected one. A single injected group SID or an
// injected "elevated" flag has the same shape as a legitimate one, so no
// cardinality rule can catch it. Requiring the proof means metadata that did not
// come from this process is refused whatever it contains.
var forwardProof = mustForwardProof()
func mustForwardProof() string {
var buf [32]byte
if _, err := rand.Read(buf[:]); err != nil {
// Continuing would leave the forwarded path authenticated by a
// predictable value, which is worse than not starting.
panic(fmt.Sprintf("generate identity forwarding proof: %v", err))
}
return hex.EncodeToString(buf[:])
}
// IsReservedForwardKey reports whether a gRPC metadata key belongs to the
// gateway's identity forwarding, and therefore must be dropped when it arrives
// from outside.
//
// grpc-gateway maps "Grpc-Metadata-<key>" request headers into gRPC metadata and
// joins them ahead of the values its own annotators add. Without dropping these,
// an HTTP client could hand the daemon "x-netbird-fwd-uid: 0" and be believed,
// because the daemon trusts forwarded metadata when the transport peer is the
// (privileged) gateway.
func IsReservedForwardKey(key string) bool {
key = strings.ToLower(key)
return slices.Contains(forwardKeys, key)
}
// ForwardIdentityMetadata encodes an HTTP client's identity for the JSON
// gateway to forward to the daemon. When known is false only the marker is
// set, which makes the daemon treat the caller as unidentified rather than as
// the daemon itself.
func ForwardIdentityMetadata(id Identity, known bool) metadata.MD {
md := metadata.MD{}
md.Set(mdFwd, "1")
md.Set(mdFwdProof, forwardProof)
if !known {
return md
}
if id.IsWindows() {
md.Set(mdFwdSID, id.SID)
if len(id.Groups) > 0 {
md.Set(mdFwdGroup, id.Groups...)
}
if id.Elevated {
md.Set(mdFwdElevated, "1")
}
return md
}
md.Set(mdFwdUID, strconv.FormatUint(uint64(id.UID), 10))
md.Set(mdFwdGID, strconv.FormatUint(uint64(id.GID), 10))
return md
}
// CallerIdentity returns the identity to authorize a request against. For a
// direct connection that is the transport peer's kernel identity. For a
// request relayed by the local JSON gateway it is the identity the gateway
// forwarded, since the transport peer is then the daemon itself.
//
// A forwarded identity is only honoured when the transport peer is the daemon's
// own identity and the metadata carries this process's forwarding proof, so
// forged forwarding metadata gains a caller nothing. A forwarded request that
// carries no identity is reported as unidentified, never as the daemon.
//
// The second return value is false when no identity could be established, and
// callers MUST fail closed in that case.
func CallerIdentity(ctx context.Context) (Identity, bool) {
id, ok := IdentityFromContext(ctx)
if !ok {
return Identity{}, false
}
// A forwarding key that arrives more than once did not come from the gateway
// alone, so nothing about the request can be trusted to describe its caller.
// Refusing outright matters because the alternative reading, "not forwarded",
// would authorize the request as the transport peer, which on the gateway's
// connection is the daemon itself.
if duplicatedForwardKey(ctx) {
return Identity{}, false
}
forwarded := isForwarded(ctx)
// Our own process on the other end of the socket is the JSON gateway, the only
// thing that dials the daemon from inside it. Such a call must carry a
// forwarded identity; without one there is no caller to authorize, and
// treating it as the daemon would authorize whatever reached the JSON socket.
// Only Linux reports the peer PID, so this is a belt on top of the gateway's
// interceptor rather than the sole guarantee.
if id.PID != 0 && int(id.PID) == selfPID && !forwarded {
return Identity{}, false
}
// Only the gateway's own connection may speak for someone else. Being
// privileged is not enough and not the point: the gateway runs inside the
// daemon, so it dials as the daemon's identity whatever user that is, which
// also covers a rootless container.
if !forwarded || !IsDaemonSelf(id) {
return id, true
}
// Speaking for someone else additionally requires the proof only this process
// holds. Refusing is the only safe reading: the transport peer here is the
// daemon itself, so falling back to it would authorize the request as the
// daemon. This is also what makes the forwarded values trustworthy once
// accepted, so they need no shape checks of their own.
if !authenticForward(ctx) {
return Identity{}, false
}
return forwardedIdentity(ctx)
}
// duplicatedForwardKey reports whether any forwarding key carries more than one
// value. The gateway's interceptor sets each key exactly once and replaces what
// was already there, so a repeat means a second source supplied it.
func duplicatedForwardKey(ctx context.Context) bool {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return false
}
for _, key := range forwardKeys {
// Group SIDs are legitimately repeated; the rest identify the caller.
if key == mdFwdGroup {
continue
}
if len(md.Get(key)) > 1 {
return true
}
}
return false
}
// authenticForward reports whether the request carries this process's forwarding
// proof, which only the in-process JSON gateway can supply.
func authenticForward(ctx context.Context) bool {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return false
}
got := mdSingle(md, mdFwdProof)
return subtle.ConstantTimeCompare([]byte(got), []byte(forwardProof)) == 1
}
// isForwarded reports whether the request carries the JSON gateway marker.
func isForwarded(ctx context.Context) bool {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return false
}
return mdSingle(md, mdFwd) != ""
}
// forwardedIdentity decodes the identity the JSON gateway attached.
func forwardedIdentity(ctx context.Context) (Identity, bool) {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return Identity{}, false
}
if sid := mdSingle(md, mdFwdSID); sid != "" {
return Identity{
SID: sid,
// Repeated by design, one value per group, and only reachable once
// the forwarding proof has been verified.
Groups: md.Get(mdFwdGroup),
Elevated: mdSingle(md, mdFwdElevated) == "1",
}, true
}
uid, err := strconv.ParseUint(mdSingle(md, mdFwdUID), 10, 32)
if err != nil {
return Identity{}, false
}
id := Identity{UID: uint32(uid)}
if gid, err := strconv.ParseUint(mdSingle(md, mdFwdGID), 10, 32); err == nil {
id.GID = uint32(gid)
}
return id, true
}
// mdSingle returns the value of a forwarded key only when exactly one was
// supplied. The gateway's interceptor sets each key exactly once, so more than one
// value means something else also supplied it, and the whole identity is treated as
// unknown rather than picking a winner. Defence in depth behind the gateway's
// header filter.
func mdSingle(md metadata.MD, key string) string {
if v := md.Get(key); len(v) == 1 {
return v[0]
}
return ""
}
// WithForwardedIdentity stamps id onto a context's outgoing metadata for the JSON
// gateway's call to the daemon, replacing any forwarding keys already present so
// values supplied from outside cannot survive alongside it.
//
// This is deliberately not done with runtime.WithMetadata: grpc-gateway skips its
// annotators entirely when no request header maps to metadata ("if len(pairs) == 0
// { return ctx, nil, nil }", runtime/context.go), which an HTTP/1.0 request with no
// Host header over a unix socket achieves. The daemon would then see an unmarked
// call whose transport peer is the daemon's own identity, and authorize it as the
// daemon. A client interceptor runs for every RPC regardless of headers.
func WithForwardedIdentity(ctx context.Context, id Identity, known bool) context.Context {
md, ok := metadata.FromOutgoingContext(ctx)
if !ok {
md = metadata.MD{}
} else {
md = md.Copy()
}
for _, key := range forwardKeys {
delete(md, key)
}
for key, values := range ForwardIdentityMetadata(id, known) {
md[key] = values
}
return metadata.NewOutgoingContext(ctx, md)
}

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package ipcauth
import (
"context"
"testing"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
)
// transportCtx builds a request context as the daemon's transport credentials
// would: the identity of whoever opened the socket, plus whatever metadata the
// request carried.
func transportCtx(id Identity, md metadata.MD) context.Context {
ctx := peer.NewContext(context.Background(), &peer.Peer{
AuthInfo: AuthInfo{
CommonAuthInfo: credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity},
Identity: id,
},
})
if md != nil {
ctx = metadata.NewIncomingContext(ctx, md)
}
return ctx
}
var (
root = Identity{UID: 0}
unprivUser = Identity{UID: 1000, GID: 1000}
)
// asDaemon pins which identity counts as this process for the duration of a test.
// Without it the test binary's own uid decides, which silently changes what
// "the gateway" means.
func asDaemon(t *testing.T, id Identity) {
t.Helper()
prevID, prevKnown, prevDelegate := selfIdentity, selfKnown, selfMayDelegate
t.Cleanup(func() { selfIdentity, selfKnown, selfMayDelegate = prevID, prevKnown, prevDelegate })
selfIdentity, selfKnown = id, true
selfMayDelegate = !id.IsPrivileged()
}
func TestCallerIdentity_DirectConnections(t *testing.T) {
t.Run("no transport credentials is not an identity", func(t *testing.T) {
if _, ok := CallerIdentity(context.Background()); ok {
t.Fatal("a caller with no credentials must not be identified")
}
})
t.Run("a direct caller is its transport identity", func(t *testing.T) {
id, ok := CallerIdentity(transportCtx(unprivUser, nil))
if !ok || id.UID != 1000 {
t.Fatalf("got %v ok=%t, want uid 1000", id, ok)
}
})
// The whole point of honouring forwarded metadata only from a privileged
// transport peer: an unprivileged caller can set any metadata it likes on its
// own connection to the daemon socket.
t.Run("an unprivileged caller cannot forge an identity", func(t *testing.T) {
asDaemon(t, root)
forged := metadata.Pairs(mdFwd, "1", mdFwdUID, "0", mdFwdGID, "0")
id, ok := CallerIdentity(transportCtx(unprivUser, forged))
if !ok {
t.Fatal("caller should still be identified, as itself")
}
if id.IsPrivileged() || id.UID != 1000 {
t.Fatalf("forged metadata was believed: got %v", id)
}
})
}
func TestCallerIdentity_GatewayForwarding(t *testing.T) {
t.Run("the gateway's client identity is used, not the gateway's own", func(t *testing.T) {
asDaemon(t, root)
md := ForwardIdentityMetadata(unprivUser, true)
id, ok := CallerIdentity(transportCtx(root, md))
if !ok {
t.Fatal("forwarded identity should be usable")
}
if id.IsPrivileged() || id.UID != 1000 {
t.Fatalf("got %v, want the forwarded uid 1000 and not privileged", id)
}
})
t.Run("a privileged gateway client stays privileged", func(t *testing.T) {
asDaemon(t, root)
md := ForwardIdentityMetadata(root, true)
id, ok := CallerIdentity(transportCtx(root, md))
if !ok || !id.IsPrivileged() {
t.Fatalf("got %v ok=%t, want a privileged identity", id, ok)
}
})
// A JSON socket the gateway cannot read peer credentials from (a TCP socket,
// say) must not make every request look like the daemon itself.
t.Run("an unreadable client identity is unknown, not the daemon", func(t *testing.T) {
asDaemon(t, root)
md := ForwardIdentityMetadata(Identity{}, false)
if _, ok := CallerIdentity(transportCtx(root, md)); ok {
t.Fatal("a forwarded request with no identity must not be identified")
}
})
// grpc-gateway turns Grpc-Metadata-<key> headers into gRPC metadata and joins
// them ahead of its annotators' values. If an HTTP client's header survived
// that, this is the shape the daemon would see: the attacker's uid 0 first,
// the real uid second. The gateway filters those headers out, and reading a
// duplicated key as unknown makes the daemon safe even if it did not.
t.Run("a duplicated key from an injected header is not believed", func(t *testing.T) {
asDaemon(t, root)
md := metadata.MD{}
md.Append(mdFwd, "1")
md.Append(mdFwdUID, "0") // injected by the HTTP client
md.Append(mdFwdUID, "1000") // appended by the gateway's annotator
if id, ok := CallerIdentity(transportCtx(root, md)); ok {
t.Fatalf("injected uid was accepted: got %v", id)
}
})
t.Run("a duplicated marker is not believed either", func(t *testing.T) {
asDaemon(t, root)
md := metadata.MD{}
md.Append(mdFwd, "1")
md.Append(mdFwd, "1")
md.Append(mdFwdUID, "1000")
// A repeated marker must not be read as "not forwarded": that would
// authorize the request as the transport peer, which on the gateway's
// connection is the daemon itself.
if id, ok := CallerIdentity(transportCtx(root, md)); ok {
t.Fatalf("a duplicated marker was believed: got %v", id)
}
})
// The layers in front of this (the gateway's header matcher, and its
// interceptor replacing every forwarding key) are what keep outside metadata
// from arriving at all. The proof is what the daemon can check for itself, and
// it is the only defence that works for a value whose legitimate shape is
// indistinguishable from an injected one: a lone group SID, or "elevated".
t.Run("forwarding metadata without this process's proof is refused", func(t *testing.T) {
asDaemon(t, root)
for name, md := range map[string]metadata.MD{
"no proof": metadata.Pairs(mdFwd, "1", mdFwdUID, "0"),
"wrong proof": metadata.Pairs(mdFwd, "1", mdFwdUID, "0", mdFwdProof, "deadbeef"),
"windows identity without a proof": metadata.Pairs(mdFwd, "1",
mdFwdSID, "S-1-5-21-1-2-3-1001", mdFwdGroup, sidAdministrators, mdFwdElevated, "1"),
} {
t.Run(name, func(t *testing.T) {
if id, ok := CallerIdentity(transportCtx(root, md)); ok {
t.Fatalf("unstamped forwarding metadata was believed: got %v", id)
}
})
}
})
// A caller that reaches the gateway cannot see the proof, so it cannot append
// a group of its own to a genuine forwarded identity: doing so would have to
// go through the interceptor, which replaces the whole set.
t.Run("a group appended to a stamped identity does not survive the interceptor", func(t *testing.T) {
asDaemon(t, root)
injected := metadata.MD{}
injected.Append(mdFwdGroup, sidAdministrators)
ctx := WithForwardedIdentity(metadata.NewOutgoingContext(context.Background(), injected),
Identity{SID: "S-1-5-21-1-2-3-1001"}, true)
out, ok := metadata.FromOutgoingContext(ctx)
if !ok {
t.Fatal("no outgoing metadata")
}
if groups := out.Get(mdFwdGroup); len(groups) != 0 {
t.Fatalf("injected group survived: %v", groups)
}
})
}
func TestIsReservedForwardKey(t *testing.T) {
for _, key := range forwardKeys {
if !IsReservedForwardKey(key) {
t.Errorf("%q must be reserved", key)
}
}
// grpc-gateway canonicalises header names, so the check has to be
// case-insensitive.
if !IsReservedForwardKey("X-Netbird-Fwd-Uid") {
t.Error("the check must be case-insensitive")
}
for _, key := range []string{"authorization", "x-netbird", "x-netbird-fwd-uid-extra", ""} {
if IsReservedForwardKey(key) {
t.Errorf("%q must not be reserved", key)
}
}
}
func TestForwardIdentityMetadata_AlwaysMarksForwarded(t *testing.T) {
for _, tc := range []struct {
name string
id Identity
known bool
}{
{"known unix identity", unprivUser, true},
{"unknown identity", Identity{}, false},
{"windows identity", Identity{SID: "S-1-5-21-1-2-3-1001", Elevated: true}, true},
} {
t.Run(tc.name, func(t *testing.T) {
md := ForwardIdentityMetadata(tc.id, tc.known)
if got := md.Get(mdFwd); len(got) != 1 || got[0] != "1" {
t.Fatalf("marker = %v, want exactly one \"1\"", got)
}
})
}
}

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@@ -0,0 +1,127 @@
// Package ipcauth provides the kernel-authenticated identity of a local IPC
// (gRPC) caller and the transport credentials that surface it into the gRPC
// context, so the daemon can authorize individual RPCs by caller identity.
//
// On Unix the identity is read from the kernel via SO_PEERCRED (Linux) or
// LOCAL_PEERCRED (Darwin/FreeBSD). On Windows it is derived from the
// named-pipe client token. Platforms without a peer-identity primitive get no
// credentials, and every consumer must fail closed when no identity is
// available.
package ipcauth
import (
"context"
"fmt"
"slices"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/peer"
)
// Well-known Windows SIDs that identify a fully privileged principal.
const (
sidLocalSystem = "S-1-5-18" // NT AUTHORITY\SYSTEM
sidLocalService = "S-1-5-19" // NT AUTHORITY\LOCAL SERVICE
sidNetworkService = "S-1-5-20" // NT AUTHORITY\NETWORK SERVICE
sidAdministrators = "S-1-5-32-544" // BUILTIN\Administrators
)
// Identity is the kernel-authenticated identity of a local IPC caller. The
// zero value is not a valid identity: consumers must only use one obtained
// with a true ok/nil error return.
type Identity struct {
// UID and GID are the caller's Unix user ID and primary group ID. Both are
// zero on Windows, where SID is authoritative instead.
UID uint32
GID uint32
// SID is the caller's Windows security identifier, empty on Unix.
SID string
// Groups holds the caller's Windows group SIDs, captured from the client
// token at handshake time. Only groups that are enabled and not
// deny-only are captured, so a group listed here is one the caller can
// actually exercise. Empty on Unix.
Groups []string
// Elevated reports whether the Windows client token is elevated (running
// as administrator, or an administrator with UAC turned off). Always false
// on Unix, where privilege is uid 0.
Elevated bool
// PID is the caller's process ID where the platform reports it (Linux's
// SO_PEERCRED), and 0 where it does not. It identifies the daemon's own
// process dialling itself, which is what the JSON gateway does, and is never
// used to grant anything.
PID int32
}
// IsWindows reports whether this identity is a Windows principal (SID-based)
// rather than a Unix uid/gid principal.
func (i Identity) IsWindows() bool {
return i.SID != ""
}
// IsPrivileged reports whether the caller is the platform's administrative
// principal, which is what the daemon requires for changes that cross the
// user-to-root boundary.
//
// On Windows the decision comes from the caller's token rather than from
// account names or group RIDs: an elevated token, one of the service accounts
// the daemon itself may run as, or a token with BUILTIN\Administrators
// enabled. A UAC-filtered administrator has that group marked deny-only, and
// deny-only groups are dropped when the identity is captured, so such a
// caller is correctly reported as unprivileged. Domain group memberships
// (Domain Admins and friends) are deliberately not consulted: they say
// nothing about what this token may do on this machine.
func (i Identity) IsPrivileged() bool {
if !i.IsWindows() {
return i.UID == 0
}
if i.Elevated {
return true
}
switch i.SID {
case sidLocalSystem, sidLocalService, sidNetworkService:
return true
}
return slices.Contains(i.Groups, sidAdministrators)
}
// String renders the identity for audit logs and denial messages.
func (i Identity) String() string {
if i.IsWindows() {
return fmt.Sprintf("sid=%s elevated=%t", i.SID, i.Elevated)
}
return fmt.Sprintf("uid=%d gid=%d", i.UID, i.GID)
}
// AuthInfo carries the peer Identity as a gRPC credentials.AuthInfo so
// handlers can retrieve it from the request context via IdentityFromContext.
type AuthInfo struct {
credentials.CommonAuthInfo
Identity Identity
}
// AuthType identifies the authentication scheme.
func (AuthInfo) AuthType() string { return "netbird-ipc-peercred" }
// IdentityFromContext extracts the caller's kernel-authenticated identity from
// the gRPC peer context. The second return value is false when no IPC
// transport credentials were negotiated, which happens on a TCP daemon socket
// and on platforms without a peer-identity primitive. Callers MUST fail closed
// in that case.
func IdentityFromContext(ctx context.Context) (Identity, bool) {
p, ok := peer.FromContext(ctx)
if !ok {
return Identity{}, false
}
info, ok := p.AuthInfo.(AuthInfo)
if !ok {
return Identity{}, false
}
return info.Identity, true
}

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@@ -0,0 +1,43 @@
//go:build darwin || freebsd
package ipcauth
import (
"fmt"
"net"
"golang.org/x/sys/unix"
)
// PeerIdentity reads the kernel-authenticated identity of the process on the
// other end of a Unix socket via LOCAL_PEERCRED. The xucred is recorded by the
// kernel at connect() time and carries the peer's uid and its group list, of
// which the first entry is the primary group.
func PeerIdentity(conn net.Conn) (Identity, error) {
uc, ok := conn.(*net.UnixConn)
if !ok {
return Identity{}, fmt.Errorf("connection is not a unix socket: %T", conn)
}
raw, err := uc.SyscallConn()
if err != nil {
return Identity{}, fmt.Errorf("raw conn: %w", err)
}
var cred *unix.Xucred
var credErr error
if err := raw.Control(func(fd uintptr) {
cred, credErr = unix.GetsockoptXucred(int(fd), unix.SOL_LOCAL, unix.LOCAL_PEERCRED)
}); err != nil {
return Identity{}, fmt.Errorf("control raw conn: %w", err)
}
if credErr != nil {
return Identity{}, fmt.Errorf("read LOCAL_PEERCRED: %w", credErr)
}
id := Identity{UID: cred.Uid}
if cred.Ngroups > 0 {
id.GID = cred.Groups[0]
}
return id, nil
}

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@@ -0,0 +1,39 @@
//go:build linux
package ipcauth
import (
"fmt"
"net"
"golang.org/x/sys/unix"
)
// PeerIdentity reads the kernel-authenticated identity of the process on the
// other end of a Unix socket via SO_PEERCRED. The credentials are recorded by
// the kernel at connect() time and cannot be changed for the life of the
// connection, so they are not spoofable by the caller.
func PeerIdentity(conn net.Conn) (Identity, error) {
uc, ok := conn.(*net.UnixConn)
if !ok {
return Identity{}, fmt.Errorf("connection is not a unix socket: %T", conn)
}
raw, err := uc.SyscallConn()
if err != nil {
return Identity{}, fmt.Errorf("raw conn: %w", err)
}
var cred *unix.Ucred
var credErr error
if err := raw.Control(func(fd uintptr) {
cred, credErr = unix.GetsockoptUcred(int(fd), unix.SOL_SOCKET, unix.SO_PEERCRED)
}); err != nil {
return Identity{}, fmt.Errorf("control raw conn: %w", err)
}
if credErr != nil {
return Identity{}, fmt.Errorf("read SO_PEERCRED: %w", credErr)
}
return Identity{UID: cred.Uid, GID: cred.Gid, PID: cred.Pid}, nil
}

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@@ -0,0 +1,87 @@
//go:build windows
package ipcauth
import (
"fmt"
"net"
log "github.com/sirupsen/logrus"
"golang.org/x/sys/windows"
)
// PipeServerTrusted reports an error unless the pipe behind conn was created by a
// principal this client may hand secrets to. Clients call it for a pipe whose name
// carries no guarantee of its own, which is any name outside the
// ProtectedPrefix\Administrators namespace: that namespace already restricts
// creation to administrators and LocalSystem, while a plain name can be created by
// any local user before the daemon gets there.
//
// The decision is made from the pipe object's owner, not from the serving process,
// because a client cannot open a process running as another user at all, and the
// legitimate case is precisely an unprivileged client talking to a privileged
// daemon. Trusted owners are the service accounts, BUILTIN\Administrators, and
// this client's own user, the last of which is the daemon a user runs themselves
// as in netstack mode. A pipe owned by anyone else gets no setup key, pre-shared
// key or SSO prompt out of this client.
func PipeServerTrusted(conn net.Conn) error {
// go-winio's pipe connection embeds *win32File, which exposes Fd().
fdConn, ok := conn.(interface{ Fd() uintptr })
if !ok {
return fmt.Errorf("connection %T does not expose a pipe handle", conn)
}
owner, err := pipeOwnerSID(windows.Handle(fdConn.Fd()))
if err != nil {
return err
}
if !trustedPipeOwner(owner) {
return fmt.Errorf("pipe owned by %s, which is neither an administrator nor this user", owner)
}
return nil
}
// PipeOwnedBySelf reports whether the pipe behind conn was created by this very
// user, which is how a client recognises a daemon running as itself. Ownership it
// cannot read is reported as false.
func PipeOwnedBySelf(conn net.Conn) bool {
fdConn, ok := conn.(interface{ Fd() uintptr })
if !ok {
return false
}
owner, err := pipeOwnerSID(windows.Handle(fdConn.Fd()))
if err != nil {
log.Debugf("read daemon pipe owner: %v", err)
return false
}
return selfKnown && selfIdentity.SID != "" && owner == selfIdentity.SID
}
// pipeOwnerSID reads the owner of the pipe object a client is connected to. The
// handle was opened with GENERIC_READ, which includes READ_CONTROL, so no extra
// access is needed.
func pipeOwnerSID(handle windows.Handle) (string, error) {
sd, err := windows.GetSecurityInfo(handle, windows.SE_KERNEL_OBJECT, windows.OWNER_SECURITY_INFORMATION)
if err != nil {
return "", fmt.Errorf("read pipe security info: %w", err)
}
owner, _, err := sd.Owner()
if err != nil {
return "", fmt.Errorf("read pipe owner: %w", err)
}
return owner.String(), nil
}
// trustedPipeOwner reports whether a pipe's owner is a principal a client may
// speak to. An elevated process's objects are owned by BUILTIN\Administrators by
// default, an unelevated one's by the user, which is why both forms appear here.
func trustedPipeOwner(owner string) bool {
switch owner {
case sidLocalSystem, sidLocalService, sidNetworkService, sidAdministrators:
return true
}
return selfKnown && selfIdentity.SID != "" && owner == selfIdentity.SID
}

View File

@@ -0,0 +1,125 @@
package ipcauth
import (
"os"
"runtime"
)
// Fields of the ErrorInfo detail the daemon attaches to a PermissionDenied it
// raises for an operation that requires root/administrator. Clients match on
// Reason and Domain rather than on the message text, and render the summary and
// command themselves so the user gets guidance instead of a gRPC error dump.
const (
// ErrorReasonPrivilegeRequired identifies the detail.
ErrorReasonPrivilegeRequired = "PRIVILEGE_REQUIRED"
// ErrorDomain scopes the reason to the NetBird daemon.
ErrorDomain = "daemon.netbird.io"
// ErrorMetaSummary is the one-sentence explanation of what was refused.
ErrorMetaSummary = "summary"
// ErrorMetaCommand is the command that performs the same operation with the
// privileges it needs, ready to copy and run.
ErrorMetaCommand = "command"
)
// The identity of the process evaluating callers, captured once because it cannot
// change. selfKnown is false when it could not be read, in which case nothing is
// ever treated as this process. selfMayDelegate additionally requires this
// process to be unprivileged: see IsPrivilegedCaller.
var (
selfIdentity Identity
selfKnown bool
selfMayDelegate bool
// selfPID is this process's PID, used to recognise the daemon dialling itself.
selfPID = os.Getpid()
)
func init() {
id, err := CurrentProcessIdentity()
if err != nil {
return
}
selfIdentity, selfKnown = id, true
// Only an unprivileged daemon delegates its authority to its own identity.
// When it is root or LocalSystem, sharing its identity does not mean sharing
// its power: on Windows a filtered and a full token carry the same SID, so
// matching there would let a non-elevated shell of an administrator account
// act as an administrator, which is the boundary the token check exists to
// keep.
selfMayDelegate = !id.IsPrivileged()
}
// IsDaemonSelf reports whether an identity is this very process. The JSON gateway
// runs inside the daemon and re-dials it locally, so this is what distinguishes
// the gateway from any other caller, whatever user the daemon runs as.
func IsDaemonSelf(id Identity) bool {
if !selfKnown || id.IsWindows() != selfIdentity.IsWindows() {
return false
}
if id.IsWindows() {
return id.SID != "" && id.SID == selfIdentity.SID
}
return id.UID == selfIdentity.UID
}
// IsPrivilegedCaller reports whether an identity may make the changes the daemon
// restricts to the platform administrator. This is the daemon's own rule and
// cannot be evaluated by a client, which does not know what the daemon runs as.
//
// Beyond root/administrator it accepts a caller running as the daemon's own
// identity when the daemon is itself unprivileged. That keeps a rootless container
// working, where there is no uid 0 at all, and a Windows daemon in netstack mode,
// which needs no administrator rights. In those setups a caller sharing the
// daemon's identity can already rewrite the config files it reads and replace the
// binary it runs, so refusing it a config change would protect nothing; and an
// unprivileged daemon cannot hand out a root shell in the first place.
func IsPrivilegedCaller(id Identity) bool {
if id.IsPrivileged() {
return true
}
return selfMayDelegate && IsDaemonSelf(id)
}
// SelfDelegatesTo returns the identity this process delegates its authority to,
// and whether it delegates at all. Only an unprivileged daemon does: see
// IsPrivilegedCaller. It exists so a refusal can name who may actually perform the
// operation, because on such a host root is neither required nor necessarily
// available.
func SelfDelegatesTo() (Identity, bool) {
if !selfKnown || !selfMayDelegate {
return Identity{}, false
}
return selfIdentity, true
}
// PrivilegedActor names the principal a privileged operation requires, for use
// in messages shown to the user.
func PrivilegedActor() string {
if runtime.GOOS == "windows" {
return "administrator privileges"
}
return "root"
}
// ElevatedCommand renders a command so that running it grants the privileges the
// operation needs. Windows has no in-line equivalent of sudo, so the command is
// returned unchanged and the user is expected to run it from an elevated
// terminal.
func ElevatedCommand(command string) string {
if runtime.GOOS == "windows" {
return command
}
return "sudo " + command
}
// UpCommand renders an elevated `netbird up` with the given flags, preceded by a
// `down`. The down is what makes the command work on a connected client: `netbird
// up` prints "Already connected" and returns without applying any config flag, so
// on its own the command would appear to do nothing. It is a no-op, exit 0, when
// the client is not connected.
//
// ";" rather than "&&" so the line can be pasted into any of the shells a user
// might have: PowerShell 5.1, still the default on Windows Server, rejects "&&"
// as a syntax error.
func UpCommand(flags string) string {
return ElevatedCommand("netbird down") + "; " + ElevatedCommand("netbird up "+flags)
}

View File

@@ -0,0 +1,134 @@
package ipcauth
import "testing"
// The self rule is the one place privilege is granted to something other than the
// platform administrator, so its two guards matter: it must apply only when the
// daemon is itself unprivileged, and only to a caller with the daemon's identity.
func TestIsPrivilegedCaller_SelfRule(t *testing.T) {
tests := []struct {
name string
// self stands in for the process the daemon runs as.
self Identity
selfKnown bool
caller Identity
want bool
}{
{
name: "root is privileged whatever the daemon runs as",
self: Identity{UID: 1000},
selfKnown: true,
caller: Identity{UID: 0},
want: true,
},
{
name: "an unprivileged daemon delegates to its own user (rootless container)",
self: Identity{UID: 1000},
selfKnown: true,
caller: Identity{UID: 1000},
want: true,
},
{
name: "an unprivileged daemon delegates to nobody else",
self: Identity{UID: 1000},
selfKnown: true,
caller: Identity{UID: 1001},
want: false,
},
{
// The daemon is root on a normal install, so sharing its identity is
// already covered by being root; nothing else may match.
name: "a root daemon delegates to nobody",
self: Identity{UID: 0},
selfKnown: true,
caller: Identity{UID: 1000},
want: false,
},
{
// Windows netstack mode: the daemon needs no administrator rights.
name: "an unprivileged windows daemon delegates to its own SID",
self: Identity{SID: "S-1-5-21-1-2-3-1001"},
selfKnown: true,
caller: Identity{SID: "S-1-5-21-1-2-3-1001"},
want: true,
},
{
name: "an unprivileged windows daemon delegates to no other SID",
self: Identity{SID: "S-1-5-21-1-2-3-1001"},
selfKnown: true,
caller: Identity{SID: "S-1-5-21-1-2-3-1002"},
want: false,
},
{
// The UAC boundary: a filtered and a full token of the same account
// carry the same SID but not the same power, so an elevated daemon must
// never delegate to its own SID.
name: "an elevated windows daemon does not delegate to its own SID",
self: Identity{SID: "S-1-5-21-1-2-3-500", Elevated: true},
selfKnown: true,
caller: Identity{SID: "S-1-5-21-1-2-3-500"},
want: false,
},
{
name: "LocalSystem is privileged on its own merits, not by delegation",
self: Identity{SID: sidLocalSystem},
selfKnown: true,
caller: Identity{SID: sidLocalSystem},
want: true, // LocalSystem is privileged on its own merits
},
{
name: "identities of different kinds never match",
self: Identity{UID: 1000},
selfKnown: true,
caller: Identity{SID: "S-1-5-21-1-2-3-1001"},
want: false,
},
{
name: "an unknown self identity delegates to nobody",
self: Identity{},
selfKnown: false,
caller: Identity{UID: 1000},
want: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
prevID, prevKnown, prevDelegate := selfIdentity, selfKnown, selfMayDelegate
t.Cleanup(func() { selfIdentity, selfKnown, selfMayDelegate = prevID, prevKnown, prevDelegate })
selfIdentity, selfKnown = tt.self, tt.selfKnown
selfMayDelegate = tt.selfKnown && !tt.self.IsPrivileged()
if got := IsPrivilegedCaller(tt.caller); got != tt.want {
t.Fatalf("IsPrivilegedCaller(%v) with daemon %v = %t, want %t",
tt.caller, tt.self, got, tt.want)
}
})
}
}
// The real process must never accidentally delegate: a test binary running as a
// normal user is unprivileged, so it may match itself, but nothing else.
func TestIsPrivilegedCaller_ThisProcess(t *testing.T) {
id, err := CurrentProcessIdentity()
if err != nil {
t.Skipf("cannot read this process's identity: %v", err)
}
// This process is always allowed to act as itself: either it is privileged, or
// it is unprivileged and therefore delegates to its own identity.
if !IsPrivilegedCaller(id) {
t.Errorf("this process %v was refused its own identity", id)
}
// A caller that is neither root nor this process must be refused, whatever
// this process happens to be.
other := Identity{UID: id.UID + 1}
if id.IsWindows() {
other = Identity{SID: id.SID + "9"}
}
if IsPrivilegedCaller(other) {
t.Errorf("an unrelated identity %v was treated as privileged", other)
}
}

View File

@@ -0,0 +1,17 @@
//go:build !windows
package ipcauth
import "os"
// CurrentProcessIdentity returns this process's identity as the daemon would
// see it if this process connected to the local IPC. It lets a client (the UI)
// decide up front whether a privileged operation can succeed, without a
// round-trip and without duplicating the rules: the answer comes from the same
// Identity.IsPrivileged the daemon applies.
func CurrentProcessIdentity() (Identity, error) {
return Identity{
UID: uint32(os.Geteuid()),
GID: uint32(os.Getegid()),
}, nil
}

View File

@@ -0,0 +1,35 @@
//go:build windows
package ipcauth
import (
"fmt"
"golang.org/x/sys/windows"
)
// CurrentProcessIdentity returns this process's identity as the daemon would see
// it if this process connected to the local IPC. It lets a client (the UI)
// decide up front whether a privileged operation can succeed, without a
// round-trip and without duplicating the rules: the answer comes from the same
// Identity.IsPrivileged the daemon applies to the token it reads off the pipe.
func CurrentProcessIdentity() (Identity, error) {
// A pseudo-token, so it must not be closed.
token := windows.GetCurrentProcessToken()
user, err := token.GetTokenUser()
if err != nil {
return Identity{}, fmt.Errorf("read token user: %w", err)
}
groups, err := tokenGroupSIDs(token)
if err != nil {
return Identity{}, err
}
return Identity{
SID: user.User.Sid.String(),
Groups: groups,
Elevated: token.IsElevated(),
}, nil
}

View File

@@ -29,6 +29,11 @@ type managedPeer struct {
type Config struct {
InactivityThreshold *time.Duration
// ReconcileAllowedIPs re-applies a peer's routed allowed IPs after its wake endpoint is
// armed. The activity listener creates the wake peer with the overlay /32 only; without the
// routed prefixes WireGuard would not steer subnet-bound traffic to the wake endpoint, so an
// idle routing peer could never be woken by that traffic. Optional; nil disables the reconcile.
ReconcileAllowedIPs func(peerKey string) error
}
// Manager manages lazy connections
@@ -56,6 +61,9 @@ type Manager struct {
peerToHAGroups map[string][]route.HAUniqueID // peer ID -> HA groups they belong to
haGroupToPeers map[route.HAUniqueID][]string // HA group -> peer IDs in the group
routesMu sync.RWMutex
// reconcileAllowedIPs re-applies a peer's routed allowed IPs after its wake endpoint is armed.
reconcileAllowedIPs func(peerKey string) error
}
// NewManager creates a new lazy connection manager
@@ -73,6 +81,7 @@ func NewManager(config Config, engineCtx context.Context, peerStore *peerstore.S
activityManager: activity.NewManager(wgIface),
peerToHAGroups: make(map[string][]route.HAUniqueID),
haGroupToPeers: make(map[route.HAUniqueID][]string),
reconcileAllowedIPs: config.ReconcileAllowedIPs,
}
if wgIface.IsUserspaceBind() {
@@ -201,7 +210,7 @@ func (m *Manager) AddPeer(peerCfg lazyconn.PeerConfig) (bool, error) {
return false, nil
}
if err := m.activityManager.MonitorPeerActivity(peerCfg); err != nil {
if err := m.armActivityListener(peerCfg); err != nil {
return false, err
}
@@ -288,7 +297,7 @@ func (m *Manager) DeactivatePeer(peerID peerid.ConnID) {
m.inactivityManager.RemovePeer(mp.peerCfg.PublicKey)
if err := m.activityManager.MonitorPeerActivity(*mp.peerCfg); err != nil {
if err := m.armActivityListener(*mp.peerCfg); err != nil {
mp.peerCfg.Log.Errorf("failed to create activity monitor: %v", err)
return
}
@@ -465,6 +474,31 @@ func (m *Manager) close() {
}
// shouldDeferIdleForHA checks if peer should stay connected due to HA group requirements
// armRoutedAllowedIPs re-applies the peer's routed allowed IPs onto its freshly armed wake
// endpoint. The activity listener creates the wake peer with the overlay /32 only, so without
// this the routed prefixes would be missing and traffic to a routed subnet could not wake the
// idle routing peer. It is a no-op when no reconciler is configured.
// armActivityListener (re)arms the peer's wake endpoint via the activity manager and then
// re-applies its routed allowed IPs, so traffic to a routed subnet can wake an idle routing
// peer. The routed prefixes must be re-applied after the wake endpoint exists because the
// listener creates it with the overlay /32 only.
func (m *Manager) armActivityListener(peerCfg lazyconn.PeerConfig) error {
if err := m.activityManager.MonitorPeerActivity(peerCfg); err != nil {
return err
}
m.armRoutedAllowedIPs(&peerCfg)
return nil
}
func (m *Manager) armRoutedAllowedIPs(peerCfg *lazyconn.PeerConfig) {
if m.reconcileAllowedIPs == nil {
return
}
if err := m.reconcileAllowedIPs(peerCfg.PublicKey); err != nil {
peerCfg.Log.Errorf("failed to reconcile routed allowed IPs on wake endpoint: %v", err)
}
}
func (m *Manager) shouldDeferIdleForHA(inactivePeers map[string]struct{}, peerID string) bool {
m.routesMu.RLock()
defer m.routesMu.RUnlock()
@@ -577,7 +611,7 @@ func (m *Manager) onPeerInactivityTimedOut(peerIDs map[string]struct{}) {
mp.peerCfg.Log.Infof("start activity monitor")
if err := m.activityManager.MonitorPeerActivity(*mp.peerCfg); err != nil {
if err := m.armActivityListener(*mp.peerCfg); err != nil {
mp.peerCfg.Log.Errorf("failed to create activity monitor: %v", err)
continue
}

View File

@@ -11,12 +11,14 @@ import (
// MobileDependency collect all dependencies for mobile platform
type MobileDependency struct {
// Android only
TunAdapter device.TunAdapter
IFaceDiscover stdnet.ExternalIFaceDiscover
// Android and iOS
NetworkChangeListener listener.NetworkChangeListener
HostDNSAddresses []netip.AddrPort
DnsReadyListener dns.ReadyListener
// Android only
TunAdapter device.TunAdapter
IFaceDiscover stdnet.ExternalIFaceDiscover
HostDNSAddresses []netip.AddrPort
DnsReadyListener dns.ReadyListener
// iOS only
DnsManager dns.IosDnsManager

View File

@@ -746,6 +746,13 @@ func (config *Config) applyMDMPolicy(policy *mdm.Policy) {
// appended for https or ":80" for http. The serviceName parameter is
// used to contextualise error messages. On success returns the parsed
// *url.URL; on failure returns a non-nil error.
// ParseServiceURL normalises a service URL exactly as the config layer does when
// it stores one, so callers comparing a requested URL against a stored one do not
// have to reimplement the scheme validation and default-port handling.
func ParseServiceURL(serviceName, serviceURL string) (*url.URL, error) {
return parseURL(serviceName, serviceURL)
}
func parseURL(serviceName, serviceURL string) (*url.URL, error) {
parsedMgmtURL, err := url.ParseRequestURI(serviceURL)
if err != nil {

View File

@@ -95,7 +95,7 @@ func (d *DnsInterceptor) RemoveRoute() error {
// AllowedIPs should use real IPs
if d.currentPeerKey != "" {
if _, err := d.allowedIPsRefcounter.Decrement(prefix); err != nil {
if _, err := d.allowedIPsRefcounter.Decrement(prefix, d.currentPeerKey); err != nil {
merr = multierror.Append(merr, fmt.Errorf("remove allowed IP %s: %v", prefix, err))
}
}
@@ -172,7 +172,7 @@ func (d *DnsInterceptor) removeAllowedIP(realPrefix netip.Prefix) error {
}
// AllowedIPs use real IPs
if _, err := d.allowedIPsRefcounter.Decrement(realPrefix); err != nil {
if _, err := d.allowedIPsRefcounter.Decrement(realPrefix, d.currentPeerKey); err != nil {
return fmt.Errorf("remove allowed IP %s: %v", realPrefix, err)
}
@@ -205,7 +205,7 @@ func (d *DnsInterceptor) RemoveAllowedIPs() error {
for _, prefixes := range d.interceptedDomains {
for _, prefix := range prefixes {
// AllowedIPs use real IPs
if _, err := d.allowedIPsRefcounter.Decrement(prefix); err != nil {
if _, err := d.allowedIPsRefcounter.Decrement(prefix, d.currentPeerKey); err != nil {
merr = multierror.Append(merr, fmt.Errorf("remove allowed IP %s: %v", prefix, err))
}
}

View File

@@ -135,7 +135,7 @@ func (r *Route) RemoveAllowedIPs() error {
var merr *multierror.Error
for _, domainPrefixes := range r.dynamicDomains {
for _, prefix := range domainPrefixes {
if _, err := r.allowedIPsRefcounter.Decrement(prefix); err != nil {
if _, err := r.allowedIPsRefcounter.Decrement(prefix, r.currentPeerKey); err != nil {
merr = multierror.Append(merr, fmt.Errorf("remove allowed IP %s: %w", prefix, err))
}
}
@@ -320,7 +320,7 @@ func (r *Route) removeRoutes(prefixes []netip.Prefix) ([]netip.Prefix, error) {
merr = multierror.Append(merr, fmt.Errorf("remove dynamic route for IP %s: %w", prefix, err))
}
if r.currentPeerKey != "" {
if _, err := r.allowedIPsRefcounter.Decrement(prefix); err != nil {
if _, err := r.allowedIPsRefcounter.Decrement(prefix, r.currentPeerKey); err != nil {
merr = multierror.Append(merr, fmt.Errorf("remove allowed IP %s: %w", prefix, err))
}
}

View File

@@ -52,6 +52,10 @@ type Manager interface {
UpdateRoutes(updateSerial uint64, serverRoutes map[route.ID]*route.Route, clientRoutes route.HAMap, useNewDNSRoute bool) error
ClassifyRoutes(newRoutes []*route.Route) (map[route.ID]*route.Route, route.HAMap)
TriggerSelection(route.HAMap)
SelectRoutes(ids []route.NetID, appendRoute bool) error
DeselectRoutes(ids []route.NetID) error
SelectAllRoutes()
DeselectAllRoutes()
GetRouteSelector() *routeselector.RouteSelector
GetClientRoutes() route.HAMap
GetSelectedClientRoutes() route.HAMap
@@ -61,6 +65,7 @@ type Manager interface {
InitialRouteRange() []string
SetFirewall(firewall.Manager) error
SetDNSForwarderPort(port uint16)
ReconcilePeerAllowedIPs(peerKey string) error
Stop(stateManager *statemanager.Manager)
}
@@ -215,7 +220,7 @@ func (m *DefaultManager) setupRefCounters(useNoop bool) {
)
}
m.allowedIPsRefCounter = refcounter.New(
m.allowedIPsRefCounter = refcounter.NewAllowedIPs(
func(prefix netip.Prefix, peerKey string) (string, error) {
// save peerKey to use it in the remove function
return peerKey, m.wgInterface.AddAllowedIP(peerKey, prefix)
@@ -232,6 +237,30 @@ func (m *DefaultManager) setupRefCounters(useNoop bool) {
)
}
// ReconcilePeerAllowedIPs re-applies every routed allowed IP currently tracked for the peer
// onto the WireGuard device. The allowed-IP refcounter only calls its AddFunc (which pushes to
// the device) on a prefix's 0->1 transition, so a peer whose device entry was rebuilt without a
// matching refcounter change — e.g. a lazy connection cycling through idle->wake, which recreates
// the WireGuard peer with the overlay /32 only — ends up missing routed prefixes the refcounter
// still considers installed, and nothing retries. Calling this when the peer's WireGuard entry is
// (re)created restores convergence. It is add-only and idempotent: AddAllowedIP is update-only, so
// prefixes are re-added to an existing peer and an absent peer is left untouched.
func (m *DefaultManager) ReconcilePeerAllowedIPs(peerKey string) error {
if m.allowedIPsRefCounter == nil {
return nil
}
return m.allowedIPsRefCounter.ReapplyMatching(
func(out string) bool { return out == peerKey },
func(prefix netip.Prefix) error {
if err := m.wgInterface.AddAllowedIP(peerKey, prefix); err != nil {
return fmt.Errorf("add allowed IP %s for peer %s: %w", prefix, peerKey, err)
}
return nil
},
)
}
// Init sets up the routing
func (m *DefaultManager) Init() error {
m.routeSelector = m.initSelector()
@@ -775,7 +804,7 @@ func (m *DefaultManager) collectExitNodeInfo(clientRoutes route.HAMap) exitNodeI
var info exitNodeInfo
for haID, routes := range clientRoutes {
if !m.isExitNodeRoute(routes) {
if !isExitNodeRoutes(routes) {
continue
}
@@ -795,13 +824,6 @@ func (m *DefaultManager) collectExitNodeInfo(clientRoutes route.HAMap) exitNodeI
return info
}
func (m *DefaultManager) isExitNodeRoute(routes []*route.Route) bool {
if len(routes) == 0 {
return false
}
return route.IsV4DefaultRoute(routes[0].Network) || route.IsV6DefaultRoute(routes[0].Network)
}
func (m *DefaultManager) categorizeUserSelection(netID route.NetID, info *exitNodeInfo) {
if m.routeSelector.IsSelected(netID) {
info.userSelected = append(info.userSelected, netID)

View File

@@ -16,6 +16,8 @@ type MockManager struct {
ClassifyRoutesFunc func(routes []*route.Route) (map[route.ID]*route.Route, route.HAMap)
UpdateRoutesFunc func(updateSerial uint64, serverRoutes map[route.ID]*route.Route, clientRoutes route.HAMap, useNewDNSRoute bool) error
TriggerSelectionFunc func(haMap route.HAMap)
SelectRoutesFunc func(ids []route.NetID, appendRoute bool) error
DeselectRoutesFunc func(ids []route.NetID) error
GetRouteSelectorFunc func() *routeselector.RouteSelector
GetClientRoutesFunc func() route.HAMap
GetSelectedClientRoutesFunc func() route.HAMap
@@ -55,6 +57,30 @@ func (m *MockManager) TriggerSelection(networks route.HAMap) {
}
}
// SelectRoutes mock implementation of SelectRoutes from Manager interface
func (m *MockManager) SelectRoutes(ids []route.NetID, appendRoute bool) error {
if m.SelectRoutesFunc != nil {
return m.SelectRoutesFunc(ids, appendRoute)
}
return nil
}
// DeselectRoutes mock implementation of DeselectRoutes from Manager interface
func (m *MockManager) DeselectRoutes(ids []route.NetID) error {
if m.DeselectRoutesFunc != nil {
return m.DeselectRoutesFunc(ids)
}
return nil
}
// SelectAllRoutes mock implementation of SelectAllRoutes from Manager interface
func (m *MockManager) SelectAllRoutes() {
}
// DeselectAllRoutes mock implementation of DeselectAllRoutes from Manager interface
func (m *MockManager) DeselectAllRoutes() {
}
// GetRouteSelector mock implementation of GetRouteSelector from Manager interface
func (m *MockManager) GetRouteSelector() *routeselector.RouteSelector {
if m.GetRouteSelectorFunc != nil {
@@ -112,6 +138,11 @@ func (m *MockManager) SetFirewall(firewall.Manager) error {
func (m *MockManager) SetDNSForwarderPort(port uint16) {
}
// ReconcilePeerAllowedIPs mock implementation of ReconcilePeerAllowedIPs from Manager interface
func (m *MockManager) ReconcilePeerAllowedIPs(peerKey string) error {
return nil
}
// Stop mock implementation of Stop from Manager interface
func (m *MockManager) Stop(stateManager *statemanager.Manager) {
if m.StopFunc != nil {

View File

@@ -3,7 +3,6 @@
package notifier
import (
"container/list"
"net/netip"
"slices"
"sort"
@@ -16,20 +15,12 @@ import (
type Notifier struct {
mu sync.Mutex
cond *sync.Cond
currentPrefixes []string
listener listener.NetworkChangeListener
queue *list.List
closed bool
}
func NewNotifier() *Notifier {
n := &Notifier{
queue: list.New(),
}
n.cond = sync.NewCond(&n.mu)
go n.deliverLoop()
return n
return &Notifier{}
}
func (n *Notifier) SetListener(listener listener.NetworkChangeListener) {
@@ -59,44 +50,19 @@ func (n *Notifier) OnNewPrefixes(prefixes []netip.Prefix) {
sort.Strings(newNets)
n.mu.Lock()
defer n.mu.Unlock()
if slices.Equal(n.currentPrefixes, newNets) {
n.mu.Unlock()
return
}
n.currentPrefixes = newNets
routes := strings.Join(n.currentPrefixes, ",")
n.queue.PushBack(routes)
n.cond.Signal()
n.mu.Unlock()
if n.listener != nil {
n.listener.OnNetworkChanged(strings.Join(n.currentPrefixes, ","))
}
}
func (n *Notifier) Close() {
n.mu.Lock()
n.closed = true
n.cond.Signal()
n.mu.Unlock()
}
func (n *Notifier) GetInitialRouteRanges() []string {
return nil
}
func (n *Notifier) deliverLoop() {
for {
n.mu.Lock()
for n.queue.Len() == 0 && !n.closed {
n.cond.Wait()
}
if n.closed && n.queue.Len() == 0 {
n.mu.Unlock()
return
}
routes := n.queue.Remove(n.queue.Front()).(string)
l := n.listener
n.mu.Unlock()
if l != nil {
l.OnNetworkChanged(routes)
}
}
}

View File

@@ -0,0 +1,90 @@
//go:build !windows
package routemanager
import (
"net"
"net/netip"
"sync"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.zx2c4.com/wireguard/tun/netstack"
"github.com/netbirdio/netbird/client/iface/device"
"github.com/netbirdio/netbird/client/iface/wgaddr"
"github.com/netbirdio/netbird/client/internal/routemanager/refcounter"
)
// reconcileWGMock is a minimal iface.WGIface that only records AddAllowedIP calls; every other
// method is an inert stub because ReconcilePeerAllowedIPs exercises none of them.
type reconcileWGMock struct {
mu sync.Mutex
adds map[string][]netip.Prefix
}
func (m *reconcileWGMock) AddAllowedIP(peerKey string, allowedIP netip.Prefix) error {
m.mu.Lock()
defer m.mu.Unlock()
if m.adds == nil {
m.adds = map[string][]netip.Prefix{}
}
m.adds[peerKey] = append(m.adds[peerKey], allowedIP)
return nil
}
func (m *reconcileWGMock) added(peerKey string) []netip.Prefix {
m.mu.Lock()
defer m.mu.Unlock()
return m.adds[peerKey]
}
func (m *reconcileWGMock) RemoveAllowedIP(string, netip.Prefix) error { return nil }
func (m *reconcileWGMock) Name() string { return "utun-test" }
func (m *reconcileWGMock) Address() wgaddr.Address { return wgaddr.Address{} }
func (m *reconcileWGMock) ToInterface() *net.Interface { return nil }
func (m *reconcileWGMock) IsUserspaceBind() bool { return false }
func (m *reconcileWGMock) GetFilter() device.PacketFilter { return nil }
func (m *reconcileWGMock) GetDevice() *device.FilteredDevice { return nil }
func (m *reconcileWGMock) GetNet() *netstack.Net { return nil }
// TestReconcilePeerAllowedIPs verifies the declarative reconcile re-applies every routed prefix
// tracked for the peer (self-heal, independent of refcount level) and stays scoped to that peer.
func TestReconcilePeerAllowedIPs(t *testing.T) {
wg := &reconcileWGMock{}
m := &DefaultManager{wgInterface: wg}
m.allowedIPsRefCounter = refcounter.NewAllowedIPs(
func(_ netip.Prefix, peerKey string) (string, error) { return peerKey, nil },
func(netip.Prefix, string) error { return nil },
)
peerA1 := netip.MustParsePrefix("10.0.0.0/24")
peerA2 := netip.MustParsePrefix("10.1.0.0/24")
peerB1 := netip.MustParsePrefix("10.2.0.0/24")
for prefix, peer := range map[netip.Prefix]string{peerA1: "peerA", peerA2: "peerA", peerB1: "peerB"} {
_, err := m.allowedIPsRefCounter.Increment(prefix, peer)
require.NoError(t, err)
}
// Extra reference: reconcile must still re-apply the prefix even though its refcount never
// hit 0 again (the exact case the plain incremental path skips).
_, err := m.allowedIPsRefCounter.Increment(peerA1, "peerA")
require.NoError(t, err)
require.NoError(t, m.ReconcilePeerAllowedIPs("peerA"))
assert.ElementsMatch(t, []netip.Prefix{peerA1, peerA2}, wg.added("peerA"),
"reconcile must re-apply all routed prefixes of the peer")
assert.Empty(t, wg.added("peerB"), "reconcile must not touch another peer's prefixes")
}
// TestReconcilePeerAllowedIPsNoCounter verifies reconcile is a safe no-op before the refcounter is
// set up.
func TestReconcilePeerAllowedIPsNoCounter(t *testing.T) {
wg := &reconcileWGMock{}
m := &DefaultManager{wgInterface: wg}
require.NoError(t, m.ReconcilePeerAllowedIPs("peerA"))
assert.Empty(t, wg.added("peerA"))
}

View File

@@ -0,0 +1,206 @@
package refcounter
import (
"errors"
"fmt"
"net/netip"
"sort"
"sync"
"github.com/hashicorp/go-multierror"
nberrors "github.com/netbirdio/netbird/client/errors"
)
// allowedIPsEntry holds the per-peer reference counts for a single prefix and which peer is
// currently installed in WireGuard. WireGuard allows a prefix on exactly one peer, so at most
// one peer is active at a time even when several peers reference the prefix.
type allowedIPsEntry struct {
// peers maps a peerKey to the number of references holding the prefix for that peer.
peers map[string]int
// active is the peerKey currently installed in WireGuard for this prefix ("" if none).
active string
// total is the sum of all per-peer reference counts (kept in sync with peers).
total int
}
// AllowedIPsRefCounter is a peer-aware reference counter for WireGuard AllowedIPs.
//
// The generic Counter keys only by prefix and remembers a single Out value set by the first
// caller, which it never changes. That is wrong for AllowedIPs: two independent watchers (or
// multiple resolved domains) can reference the same prefix through different peers, and when the
// peer currently installed in WireGuard releases its last reference the prefix must be handed over
// to a surviving peer instead of being left pointing at the released one.
//
// It calls add/remove (which program WireGuard) only on the transitions that matter:
// - add on the first reference for a prefix, or when swapping the active peer;
// - remove on the last reference for a prefix, or on the old peer during a swap.
type AllowedIPsRefCounter struct {
mu sync.Mutex
entries map[netip.Prefix]*allowedIPsEntry
add AddFunc[netip.Prefix, string, string]
remove RemoveFunc[netip.Prefix, string]
}
// NewAllowedIPs creates a new peer-aware AllowedIPs reference counter.
// add programs a prefix on a peer in WireGuard and returns the peerKey to store as the active peer.
// remove unprograms the prefix from the given peer.
func NewAllowedIPs(add AddFunc[netip.Prefix, string, string], remove RemoveFunc[netip.Prefix, string]) *AllowedIPsRefCounter {
return &AllowedIPsRefCounter{
entries: map[netip.Prefix]*allowedIPsEntry{},
add: add,
remove: remove,
}
}
// Increment adds a reference to prefix for peerKey. WireGuard is programmed only for the first
// reference to a prefix; while a different peer is already installed the prefix is left with it
// (first peer wins, HA at the WireGuard layer is not possible) and only the reference count is kept.
func (rm *AllowedIPsRefCounter) Increment(prefix netip.Prefix, peerKey string) (Ref[string], error) {
rm.mu.Lock()
defer rm.mu.Unlock()
e, ok := rm.entries[prefix]
if !ok {
e = &allowedIPsEntry{peers: map[string]int{}}
rm.entries[prefix] = e
}
logCallerF("Increasing allowed IP ref count for prefix %v peer %s [peer %d -> %d, total %d -> %d, active %q]",
prefix, peerKey, e.peers[peerKey], e.peers[peerKey]+1, e.total, e.total+1, e.active)
// Program WireGuard only when nothing is installed yet for this prefix.
if e.active == "" {
out, err := rm.add(prefix, peerKey)
if errors.Is(err, ErrIgnore) {
if e.total == 0 {
delete(rm.entries, prefix)
}
return Ref[string]{Count: e.total, Out: e.active}, nil
}
if err != nil {
if e.total == 0 {
delete(rm.entries, prefix)
}
return Ref[string]{}, fmt.Errorf("failed to add allowed IP %v for peer %s: %w", prefix, peerKey, err)
}
e.active = out
}
e.peers[peerKey]++
e.total++
return Ref[string]{Count: e.total, Out: e.active}, nil
}
// Decrement removes a reference to prefix for peerKey. When the peer currently installed in
// WireGuard releases its last reference, the prefix is swapped to a surviving peer if one exists,
// otherwise it is removed from WireGuard.
func (rm *AllowedIPsRefCounter) Decrement(prefix netip.Prefix, peerKey string) (Ref[string], error) {
rm.mu.Lock()
defer rm.mu.Unlock()
e, ok := rm.entries[prefix]
if !ok {
logCallerF("No allowed IP reference found for prefix %v", prefix)
return Ref[string]{}, nil
}
if e.peers[peerKey] > 0 {
logCallerF("Decreasing allowed IP ref count for prefix %v peer %s [peer %d -> %d, total %d -> %d, active %q]",
prefix, peerKey, e.peers[peerKey], e.peers[peerKey]-1, e.total, e.total-1, e.active)
e.peers[peerKey]--
e.total--
if e.peers[peerKey] == 0 {
delete(e.peers, peerKey)
}
} else {
logCallerF("No allowed IP reference found for prefix %v peer %s", prefix, peerKey)
}
// If the peer currently installed in WireGuard still holds references, nothing to reprogram.
// Keying the check on the active peer (not the one just released) makes this self-healing:
// a prior swap whose remove/add failed leaves e.active pointing at a peer with no references,
// and this retries the hand-off on the next Decrement instead of getting stuck.
if e.active != "" && e.peers[e.active] > 0 {
return Ref[string]{Count: e.total, Out: e.active}, nil
}
// Detach the stale/gone active peer from WireGuard before reprogramming.
if e.active != "" {
if err := rm.remove(prefix, e.active); err != nil {
return Ref[string]{Count: e.total, Out: e.active}, fmt.Errorf("remove allowed IP %v for peer %s: %w", prefix, e.active, err)
}
e.active = ""
}
// Hand the prefix over to a surviving peer, or drop the entry when none remain.
if survivor, ok := pickSurvivor(e.peers); ok {
out, err := rm.add(prefix, survivor)
if err != nil {
return Ref[string]{Count: e.total, Out: ""}, fmt.Errorf("swap allowed IP %v to peer %s: %w", prefix, survivor, err)
}
e.active = out
return Ref[string]{Count: e.total, Out: e.active}, nil
}
delete(rm.entries, prefix)
return Ref[string]{Count: 0, Out: ""}, nil
}
// Flush removes all prefixes from WireGuard and clears the counter.
func (rm *AllowedIPsRefCounter) Flush() error {
rm.mu.Lock()
defer rm.mu.Unlock()
var merr *multierror.Error
for prefix, e := range rm.entries {
if e.active == "" {
continue
}
logCallerF("Flushing allowed IP for prefix %v peer %s", prefix, e.active)
if err := rm.remove(prefix, e.active); err != nil {
merr = multierror.Append(merr, fmt.Errorf("remove allowed IP %v for peer %s: %w", prefix, e.active, err))
}
}
clear(rm.entries)
return nberrors.FormatErrorOrNil(merr)
}
// ReapplyMatching calls apply for every prefix whose currently installed (active) peer satisfies
// pred, holding the lock for the whole pass. It is used to re-push allowed IPs onto a peer whose
// WireGuard entry was rebuilt (e.g. a lazy connection cycling idle->wake) without a matching
// refcounter change, which would otherwise leave the prefix installed in the counter but missing
// on the device. Only the active peer is considered — a prefix that lost its installed peer to a
// failed swap is skipped here and reconciled by the next Increment/Decrement.
func (rm *AllowedIPsRefCounter) ReapplyMatching(pred func(out string) bool, apply func(key netip.Prefix) error) error {
rm.mu.Lock()
defer rm.mu.Unlock()
var merr *multierror.Error
for prefix, e := range rm.entries {
if e.active != "" && pred(e.active) {
if err := apply(prefix); err != nil {
merr = multierror.Append(merr, err)
}
}
}
return nberrors.FormatErrorOrNil(merr)
}
// pickSurvivor deterministically selects a peer still referencing the prefix. WireGuard cannot do
// multipath for a single prefix, so any surviving peer is a valid winner; the choice is made stable
// (lowest peerKey) for predictable behavior and testability.
func pickSurvivor(peers map[string]int) (string, bool) {
if len(peers) == 0 {
return "", false
}
keys := make([]string, 0, len(peers))
for k := range peers {
keys = append(keys, k)
}
sort.Strings(keys)
return keys[0], true
}

View File

@@ -0,0 +1,241 @@
package refcounter
import (
"errors"
"net/netip"
"testing"
)
// fakeWG models WireGuard's cryptokey routing: a prefix can be installed on exactly one peer.
// failAdd/failRemove make the next add/remove fail once, to exercise the self-healing error paths.
type fakeWG struct {
installed map[netip.Prefix]string
adds int
removes int
failAdd bool
failRemove bool
}
func newFakeWG() *fakeWG {
return &fakeWG{installed: map[netip.Prefix]string{}}
}
func (f *fakeWG) counter() *AllowedIPsRefCounter {
return NewAllowedIPs(
func(prefix netip.Prefix, peerKey string) (string, error) {
if f.failAdd {
f.failAdd = false
return "", errors.New("add failed")
}
f.adds++
f.installed[prefix] = peerKey
return peerKey, nil
},
func(prefix netip.Prefix, peerKey string) error {
if f.failRemove {
f.failRemove = false
return errors.New("remove failed")
}
f.removes++
// only clear if this peer is the one installed, mirroring wg semantics
if f.installed[prefix] == peerKey {
delete(f.installed, prefix)
}
return nil
},
)
}
func mustPrefix(t *testing.T, s string) netip.Prefix {
t.Helper()
p, err := netip.ParsePrefix(s)
if err != nil {
t.Fatalf("parse prefix %q: %v", s, err)
}
return p
}
func mustIncrement(t *testing.T, c *AllowedIPsRefCounter, p netip.Prefix, peer string) Ref[string] {
t.Helper()
ref, err := c.Increment(p, peer)
if err != nil {
t.Fatalf("Increment(%v, %s): %v", p, peer, err)
}
return ref
}
func mustDecrement(t *testing.T, c *AllowedIPsRefCounter, p netip.Prefix, peer string) Ref[string] {
t.Helper()
ref, err := c.Decrement(p, peer)
if err != nil {
t.Fatalf("Decrement(%v, %s): %v", p, peer, err)
}
return ref
}
// TestAllowedIPs_SwapOnActivePeerRemoval reproduces the reported bug: two networks with the same
// prefix routed by different peers. Removing the network whose peer is installed must hand the
// prefix over to the surviving peer instead of leaving it on the removed one.
func TestAllowedIPs_SwapOnActivePeerRemoval(t *testing.T) {
f := newFakeWG()
c := f.counter()
p := mustPrefix(t, "10.44.8.0/24")
mustIncrement(t, c, p, "peerA")
mustIncrement(t, c, p, "peerB")
// First peer wins while both are present.
if got := f.installed[p]; got != "peerA" {
t.Fatalf("expected peerA installed, got %q", got)
}
// Remove the active peer's network -> must swap to peerB.
mustDecrement(t, c, p, "peerA")
if got := f.installed[p]; got != "peerB" {
t.Fatalf("BUG: prefix stuck on removed peer, want peerB got %q", got)
}
// Remove the last one -> prefix gone.
mustDecrement(t, c, p, "peerB")
if _, ok := f.installed[p]; ok {
t.Fatalf("expected prefix removed, still installed on %q", f.installed[p])
}
}
// TestAllowedIPs_RemoveNonActivePeer removing a non-installed peer must not touch WireGuard.
func TestAllowedIPs_RemoveNonActivePeer(t *testing.T) {
f := newFakeWG()
c := f.counter()
p := mustPrefix(t, "10.44.8.0/24")
mustIncrement(t, c, p, "peerA")
mustIncrement(t, c, p, "peerB")
removesBefore := f.removes
mustDecrement(t, c, p, "peerB")
if f.installed[p] != "peerA" {
t.Fatalf("active peer must stay peerA, got %q", f.installed[p])
}
if f.removes != removesBefore {
t.Fatalf("removing a non-active peer must not call wg remove")
}
}
// TestAllowedIPs_SamePeerMultipleRefs two references via the same peer must keep the prefix until
// the last reference is released (the reason the per-peer count must be an int, not a set).
func TestAllowedIPs_SamePeerMultipleRefs(t *testing.T) {
f := newFakeWG()
c := f.counter()
p := mustPrefix(t, "10.44.8.0/24")
mustIncrement(t, c, p, "peerA")
mustIncrement(t, c, p, "peerA")
if f.adds != 1 {
t.Fatalf("expected a single wg add for the same peer, got %d", f.adds)
}
mustDecrement(t, c, p, "peerA")
if f.installed[p] != "peerA" {
t.Fatalf("prefix must stay while a reference remains, got %q", f.installed[p])
}
if f.removes != 0 {
t.Fatalf("no wg remove expected while a reference remains, got %d", f.removes)
}
mustDecrement(t, c, p, "peerA")
if _, ok := f.installed[p]; ok {
t.Fatalf("prefix must be removed after last reference")
}
}
// TestAllowedIPs_RefCountAndActive checks the Ref returned to callers (used for the HA-disabled log).
func TestAllowedIPs_RefCountAndActive(t *testing.T) {
f := newFakeWG()
c := f.counter()
p := mustPrefix(t, "10.44.8.0/24")
ref := mustIncrement(t, c, p, "peerA")
if ref.Count != 1 || ref.Out != "peerA" {
t.Fatalf("want {1, peerA}, got {%d, %q}", ref.Count, ref.Out)
}
ref = mustIncrement(t, c, p, "peerB")
if ref.Count != 2 || ref.Out != "peerA" {
t.Fatalf("want {2, peerA}, got {%d, %q}", ref.Count, ref.Out)
}
}
// TestAllowedIPs_Flush removes everything installed and clears the counter.
func TestAllowedIPs_Flush(t *testing.T) {
f := newFakeWG()
c := f.counter()
p1 := mustPrefix(t, "10.44.8.0/24")
p2 := mustPrefix(t, "10.44.9.0/24")
mustIncrement(t, c, p1, "peerA")
mustIncrement(t, c, p2, "peerB")
if err := c.Flush(); err != nil {
t.Fatal(err)
}
if len(f.installed) != 0 {
t.Fatalf("expected all prefixes removed, got %v", f.installed)
}
// After flush, a fresh increment must add again.
mustIncrement(t, c, p1, "peerC")
if f.installed[p1] != "peerC" {
t.Fatalf("counter not reset after flush")
}
}
// TestAllowedIPs_SelfHealAfterSwapAddError ensures a failed add during a swap does not permanently
// strand the prefix: the next Decrement (or Increment) must retry and install a surviving peer.
func TestAllowedIPs_SelfHealAfterSwapAddError(t *testing.T) {
f := newFakeWG()
c := f.counter()
p := mustPrefix(t, "10.44.8.0/24")
mustIncrement(t, c, p, "peerA")
mustIncrement(t, c, p, "peerB")
mustIncrement(t, c, p, "peerC")
// Removing the active peerA triggers a swap to a survivor; make the add fail once.
f.failAdd = true
if _, err := c.Decrement(p, "peerA"); err == nil {
t.Fatalf("expected error from failed swap add")
}
if _, ok := f.installed[p]; ok {
t.Fatalf("nothing should be installed after a failed swap add, got %q", f.installed[p])
}
// A later Decrement of a non-active survivor must retry the hand-off (self-heal), not stay stuck.
ref := mustDecrement(t, c, p, "peerC")
if got := f.installed[p]; got == "" {
t.Fatalf("self-heal failed: prefix left unrouted after add recovered")
}
if ref.Out == "" {
t.Fatalf("expected an active peer after self-heal, got empty")
}
}
// TestAllowedIPs_SelfHealAfterRemoveError ensures a failed remove during a swap is retried instead
// of leaving e.active stuck on a peer that no longer holds references.
func TestAllowedIPs_SelfHealAfterRemoveError(t *testing.T) {
f := newFakeWG()
c := f.counter()
p := mustPrefix(t, "10.44.8.0/24")
mustIncrement(t, c, p, "peerA")
mustIncrement(t, c, p, "peerB")
// Releasing active peerA must detach it (remove) then add peerB; fail the remove once.
f.failRemove = true
if _, err := c.Decrement(p, "peerA"); err == nil {
t.Fatalf("expected error from failed remove")
}
// Next Decrement of the non-active survivor retries: removes stale peerA, installs peerB.
mustDecrement(t, c, p, "peerB")
// peerB had only one ref, so after retry the prefix is fully released.
if _, ok := f.installed[p]; ok {
t.Fatalf("expected prefix released after self-heal, still on %q", f.installed[p])
}
}

View File

@@ -94,6 +94,26 @@ func (rm *Counter[Key, I, O]) Get(key Key) (Ref[O], bool) {
return ref, ok
}
// ReapplyMatching calls apply for every key whose stored Out satisfies pred, holding the
// counter lock for the whole pass. Running apply under the lock keeps it atomic with respect
// to Increment/Decrement: a prefix dropped to zero is removed from the map (and had its
// RemoveFunc called) before this pass observes it, so a stale key can never be re-applied.
// pred and apply are invoked under the lock, so they must not call back into the counter.
func (rm *Counter[Key, I, O]) ReapplyMatching(pred func(out O) bool, apply func(key Key) error) error {
rm.mu.Lock()
defer rm.mu.Unlock()
var merr *multierror.Error
for key, ref := range rm.refCountMap {
if pred(ref.Out) {
if err := apply(key); err != nil {
merr = multierror.Append(merr, err)
}
}
}
return nberrors.FormatErrorOrNil(merr)
}
// Increment increments the reference count for the given key.
// If this is the first reference to the key, the AddFunc is called.
func (rm *Counter[Key, I, O]) Increment(key Key, in I) (Ref[O], error) {

View File

@@ -0,0 +1,47 @@
package refcounter
import (
"net/netip"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TestReapplyMatching verifies ReapplyMatching invokes apply for exactly the keys whose stored
// Out satisfies the predicate (no duplicates for multiply-referenced keys) — the primitive
// ReconcilePeerAllowedIPs relies on to re-apply a single peer's routed prefixes.
func TestReapplyMatching(t *testing.T) {
rc := New[netip.Prefix, string, string](
func(_ netip.Prefix, peerKey string) (string, error) { return peerKey, nil },
func(netip.Prefix, string) error { return nil },
)
peerA1 := netip.MustParsePrefix("10.0.0.0/24")
peerA2 := netip.MustParsePrefix("10.1.0.0/24")
peerB1 := netip.MustParsePrefix("10.2.0.0/24")
for prefix, peer := range map[netip.Prefix]string{peerA1: "peerA", peerA2: "peerA", peerB1: "peerB"} {
_, err := rc.Increment(prefix, peer)
require.NoError(t, err)
}
// a second reference must not make the key applied twice
_, err := rc.Increment(peerA1, "peerA")
require.NoError(t, err)
var applied []netip.Prefix
err = rc.ReapplyMatching(
func(out string) bool { return out == "peerA" },
func(key netip.Prefix) error { applied = append(applied, key); return nil },
)
require.NoError(t, err)
assert.ElementsMatch(t, []netip.Prefix{peerA1, peerA2}, applied)
var none []netip.Prefix
err = rc.ReapplyMatching(
func(out string) bool { return out == "missing" },
func(key netip.Prefix) error { none = append(none, key); return nil },
)
require.NoError(t, err)
assert.Empty(t, none)
}

View File

@@ -5,5 +5,7 @@ import "net/netip"
// RouteRefCounter is a Counter for Route, it doesn't take any input on Increment and doesn't use any output on Decrement
type RouteRefCounter = Counter[netip.Prefix, struct{}, struct{}]
// AllowedIPsRefCounter is a Counter for AllowedIPs, it takes a peer key on Increment and passes it back to Decrement
type AllowedIPsRefCounter = Counter[netip.Prefix, string, string]
// AllowedIPsRefCounter tracks WireGuard AllowedIPs per prefix. Unlike the generic Counter it is peer-aware:
// a prefix can be claimed by several peers at once and WireGuard allows a given prefix on exactly one peer,
// so the counter records the per-peer reference count and swaps the installed peer when the active one is released.
// See allowedips.go.

View File

@@ -0,0 +1,138 @@
package routemanager
import (
"fmt"
"slices"
"github.com/hashicorp/go-multierror"
log "github.com/sirupsen/logrus"
"golang.org/x/exp/maps"
nberrors "github.com/netbirdio/netbird/client/errors"
"github.com/netbirdio/netbird/route"
)
// SelectRoutes selects the routes with the given network IDs and applies the
// new selection. V4/v6 exit-node pairs are expanded automatically. Exit nodes
// are mutually exclusive: if the selection activates an exit node, every other
// available exit node is deselected so two can't be active at once. With
// appendRoute=false the previous selection is replaced instead of extended.
func (m *DefaultManager) SelectRoutes(ids []route.NetID, appendRoute bool) error {
if err := m.selectRoutes(ids, appendRoute); err != nil {
return err
}
m.TriggerSelection(m.GetClientRoutes())
return nil
}
// DeselectRoutes removes the routes with the given network IDs from the
// selection and applies the change. V4/v6 exit-node pairs are expanded
// automatically.
func (m *DefaultManager) DeselectRoutes(ids []route.NetID) error {
if err := m.deselectRoutes(ids); err != nil {
return err
}
m.TriggerSelection(m.GetClientRoutes())
return nil
}
func (m *DefaultManager) deselectRoutes(ids []route.NetID) error {
routesMap := m.GetClientRoutesWithNetID()
routes := route.ExpandV6ExitPairs(slices.Clone(ids), routesMap)
log.Debugf("deselecting routes with ids: %v", routes)
if err := m.routeSelector.DeselectRoutes(routes, maps.Keys(routesMap)); err != nil {
return fmt.Errorf("deselect routes: %w", err)
}
return nil
}
// SelectAllRoutes selects every available route and applies the selection.
// Exit nodes stay mutually exclusive: at most one remains active.
func (m *DefaultManager) SelectAllRoutes() {
m.selectAllRoutes()
m.TriggerSelection(m.GetClientRoutes())
}
func (m *DefaultManager) selectAllRoutes() {
m.routeSelector.SelectAllRoutes()
// Select-all wipes every explicit selection, so exit nodes fall back to
// management's auto-apply flags — which may mark several at once.
// Reconcile immediately so at most one exit node stays active instead of
// waiting for the next network map to enforce it.
m.mux.Lock()
defer m.mux.Unlock()
m.updateRouteSelectorFromManagement(m.clientRoutes)
}
// DeselectAllRoutes deselects every route and applies the change.
func (m *DefaultManager) DeselectAllRoutes() {
m.routeSelector.DeselectAllRoutes()
m.TriggerSelection(m.GetClientRoutes())
}
func (m *DefaultManager) selectRoutes(ids []route.NetID, appendRoute bool) error {
routesMap := m.GetClientRoutesWithNetID()
routes := route.ExpandV6ExitPairs(slices.Clone(ids), routesMap)
allIDs := maps.Keys(routesMap)
log.Debugf("selecting routes with ids: %v", routes)
// A partial failure (e.g. an unknown ID in the request) still selects the
// valid routes, so exclusivity below must run regardless of the error.
var merr *multierror.Error
if err := m.routeSelector.SelectRoutes(routes, appendRoute, allIDs); err != nil {
merr = multierror.Append(merr, fmt.Errorf("select routes: %w", err))
}
// Exit nodes are mutually exclusive: if this selection activates an
// exit node, deselect every other available exit node so two can't be
// selected at once. Non-exit route selections are left untouched.
if requestActivatesExitNode(routes, routesMap) {
if others := otherExitNodeIDs(routesMap, routes); len(others) > 0 {
if err := m.routeSelector.DeselectRoutes(others, allIDs); err != nil {
merr = multierror.Append(merr, fmt.Errorf("deselect sibling exit nodes: %w", err))
}
}
}
return nberrors.FormatErrorOrNil(merr)
}
func isExitNodeRoutes(routes []*route.Route) bool {
return len(routes) > 0 && (route.IsV4DefaultRoute(routes[0].Network) || route.IsV6DefaultRoute(routes[0].Network))
}
// requestActivatesExitNode reports whether any requested NetID maps to an exit
// node (default route) in the current route table.
func requestActivatesExitNode(requested []route.NetID, routesMap map[route.NetID][]*route.Route) bool {
for _, id := range requested {
if isExitNodeRoutes(routesMap[id]) {
return true
}
}
return false
}
// otherExitNodeIDs returns every available exit-node NetID that is not in the
// requested set — the siblings to deselect so a single exit node stays active.
func otherExitNodeIDs(routesMap map[route.NetID][]*route.Route, requested []route.NetID) []route.NetID {
keep := make(map[route.NetID]struct{}, len(requested))
for _, id := range requested {
keep[id] = struct{}{}
}
var others []route.NetID
for id, routes := range routesMap {
if !isExitNodeRoutes(routes) {
continue
}
if _, ok := keep[id]; ok {
continue
}
others = append(others, id)
}
return others
}

View File

@@ -0,0 +1,129 @@
package routemanager
import (
"net/netip"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/netbirdio/netbird/client/internal/routeselector"
"github.com/netbirdio/netbird/route"
)
func v6ExitRoute(netID, peer string) *route.Route {
return &route.Route{
NetID: route.NetID(netID),
Network: netip.MustParsePrefix("::/0"),
Peer: peer,
}
}
func newSelectionTestManager() *DefaultManager {
return &DefaultManager{
routeSelector: routeselector.NewRouteSelector(),
clientRoutes: route.HAMap{
"exitA|0.0.0.0/0": {exitRoute("exitA", "p1", true)},
"exitA-v6|::/0": {v6ExitRoute("exitA-v6", "p1")},
"exitB|0.0.0.0/0": {exitRoute("exitB", "p2", true)},
"lan|192.168.1.0/24": {{NetID: "lan", Network: netip.MustParsePrefix("192.168.1.0/24"), Peer: "p3"}},
},
}
}
func TestSelectRoutes_ExitNodeExclusivity(t *testing.T) {
m := newSelectionTestManager()
// Selecting an exit node selects its v6 pair and deselects the sibling.
require.NoError(t, m.selectRoutes([]route.NetID{"exitA"}, true))
assert.True(t, m.routeSelector.IsSelected("exitA"), "exitA should be selected")
assert.True(t, m.routeSelector.IsSelected("exitA-v6"), "the v6 pair follows its v4 base")
assert.False(t, m.routeSelector.IsSelected("exitB"), "the sibling exit node must be deselected")
// Switching to the sibling deselects the previous exit node and its v6 pair.
require.NoError(t, m.selectRoutes([]route.NetID{"exitB"}, true))
assert.True(t, m.routeSelector.IsSelected("exitB"), "exitB should now be selected")
assert.False(t, m.routeSelector.IsSelected("exitA"), "the previous exit node must be deselected")
assert.False(t, m.routeSelector.IsSelected("exitA-v6"), "the previous exit node's v6 pair must be deselected")
assert.True(t, m.routeSelector.IsSelected("lan"), "non-exit route selection is untouched")
// Selecting a non-exit route leaves the active exit node alone.
require.NoError(t, m.selectRoutes([]route.NetID{"lan"}, true))
assert.True(t, m.routeSelector.IsSelected("exitB"), "selecting a non-exit route keeps the exit node")
// Deselecting the active exit node turns every exit node off.
require.NoError(t, m.deselectRoutes([]route.NetID{"exitB"}))
assert.False(t, m.routeSelector.IsSelected("exitB"), "exitB should be deselected")
assert.False(t, m.routeSelector.IsSelected("exitA"), "exitA stays deselected")
assert.True(t, m.routeSelector.IsSelected("lan"), "non-exit route selection is untouched")
}
func TestSelectRoutes_PartialErrorStillEnforcesExclusivity(t *testing.T) {
// The unknown ID must be reported, but the valid exit node in the same
// request is still selected — so its sibling must still be deselected.
// Both orderings are covered: processing must continue past the invalid
// ID wherever it sits in the request.
requests := map[string][]route.NetID{
"invalid id first": {"missing", "exitB"},
"invalid id last": {"exitB", "missing"},
}
for name, ids := range requests {
t.Run(name, func(t *testing.T) {
m := newSelectionTestManager()
require.NoError(t, m.selectRoutes([]route.NetID{"exitA"}, true))
err := m.selectRoutes(ids, true)
assert.Error(t, err, "unknown id must be reported")
assert.True(t, m.routeSelector.IsSelected("exitB"), "valid exit node from the request is selected")
assert.False(t, m.routeSelector.IsSelected("exitA"), "sibling exit node must be deselected despite the error")
assert.False(t, m.routeSelector.IsSelected("exitA-v6"), "sibling's v6 pair must be deselected too")
})
}
}
func TestSelectAllRoutes_KeepsSingleExitNode(t *testing.T) {
// Both exit nodes are marked for auto-apply by management
// (SkipAutoApply=false), the state where select-all could turn on two at
// once without the immediate reconciliation.
m := &DefaultManager{
routeSelector: routeselector.NewRouteSelector(),
clientRoutes: route.HAMap{
"exitA|0.0.0.0/0": {exitRoute("exitA", "p1", false)},
"exitB|0.0.0.0/0": {exitRoute("exitB", "p2", false)},
"lan|192.168.1.0/24": {{NetID: "lan", Network: netip.MustParsePrefix("192.168.1.0/24"), Peer: "p3"}},
},
}
require.NoError(t, m.selectRoutes([]route.NetID{"exitB"}, true))
m.selectAllRoutes()
assert.True(t, m.routeSelector.IsSelected("lan"), "non-exit routes are all selected")
assert.True(t, m.routeSelector.IsSelected("exitA"), "the deterministic management pick stays active")
assert.False(t, m.routeSelector.IsSelected("exitB"), "select-all must not leave a second exit node active")
}
func TestSelectRoutes_UnknownRoute(t *testing.T) {
m := newSelectionTestManager()
assert.Error(t, m.selectRoutes([]route.NetID{"missing"}, true), "selecting an unavailable route must fail")
assert.Error(t, m.deselectRoutes([]route.NetID{"missing"}), "deselecting an unavailable route must fail")
}
func TestExitNodeSelectionHelpers(t *testing.T) {
routesMap := map[route.NetID][]*route.Route{
"exitA": {{Network: netip.MustParsePrefix("0.0.0.0/0")}},
"exitB": {{Network: netip.MustParsePrefix("::/0")}},
"lan": {{Network: netip.MustParsePrefix("192.168.0.0/16")}},
}
assert.True(t, requestActivatesExitNode([]route.NetID{"exitA"}, routesMap), "v4 default route is an exit node")
assert.True(t, requestActivatesExitNode([]route.NetID{"exitB"}, routesMap), "v6 default route is an exit node")
assert.False(t, requestActivatesExitNode([]route.NetID{"lan"}, routesMap), "lan route is not an exit node")
assert.False(t, requestActivatesExitNode([]route.NetID{"missing"}, routesMap), "unknown id is not an exit node")
others := otherExitNodeIDs(routesMap, []route.NetID{"exitB"})
assert.ElementsMatch(t, []route.NetID{"exitA"}, others, "only the other exit node is a sibling; the lan route is ignored")
}

View File

@@ -15,6 +15,11 @@ type Route struct {
route *route.Route
routeRefCounter *refcounter.RouteRefCounter
allowedIPsRefcounter *refcounter.AllowedIPsRefCounter
// currentPeerKey is the routing peer this watcher currently has the prefix installed on
// (the HA winner elected by the watcher). It can differ from route.Peer and change on
// failover, so it is recorded on AddAllowedIPs and used on RemoveAllowedIPs to decrement
// the exact peer that was incremented.
currentPeerKey string
}
func NewRoute(params common.HandlerParams) *Route {
@@ -52,12 +57,15 @@ func (r *Route) AddAllowedIPs(peerKey string) error {
ref.Out,
)
}
r.currentPeerKey = peerKey
return nil
}
func (r *Route) RemoveAllowedIPs() error {
if _, err := r.allowedIPsRefcounter.Decrement(r.route.Network); err != nil {
return err
var err error
if _, decErr := r.allowedIPsRefcounter.Decrement(r.route.Network, r.currentPeerKey); decErr != nil {
err = fmt.Errorf("remove allowed IP %s: %w", r.route.Network, decErr)
}
return nil
r.currentPeerKey = ""
return err
}

View File

@@ -20,6 +20,8 @@ const (
rpFilterPath = "net.ipv4.conf.all.rp_filter"
rpFilterInterfacePath = "net.ipv4.conf.%s.rp_filter"
srcValidMarkPath = "net.ipv4.conf.all.src_valid_mark"
percentEscape = "%25"
dotEscape = "%2E"
)
type iface interface {
@@ -56,7 +58,11 @@ func Setup(wgIface iface) (map[string]int, error) {
continue
}
i := fmt.Sprintf(rpFilterInterfacePath, intf.Name)
// Escape '%' and '.' so they survive the dot-to-slash conversion in Set()
safeName := strings.ReplaceAll(intf.Name, "%", percentEscape)
safeName = strings.ReplaceAll(safeName, ".", dotEscape)
i := fmt.Sprintf(rpFilterInterfacePath, safeName)
oldVal, err := Set(i, 2, true)
if err != nil {
result = multierror.Append(result, err)
@@ -70,7 +76,11 @@ func Setup(wgIface iface) (map[string]int, error) {
// Set sets a sysctl configuration, if onlyIfOne is true it will only set the new value if it's set to 1
func Set(key string, desiredValue int, onlyIfOne bool) (int, error) {
path := fmt.Sprintf("/proc/sys/%s", strings.ReplaceAll(key, ".", "/"))
path := strings.ReplaceAll(key, ".", "/")
// Unescape interface dots and percent signs
path = strings.ReplaceAll(path, dotEscape, ".")
path = strings.ReplaceAll(path, percentEscape, "%")
path = fmt.Sprintf("/proc/sys/%s", path)
currentValue, err := os.ReadFile(path)
if err != nil {
return -1, fmt.Errorf("read sysctl %s: %w", key, err)

View File

@@ -0,0 +1,124 @@
package tunnelnotifier
import (
"container/list"
"sync"
"github.com/netbirdio/netbird/client/internal/dns"
"github.com/netbirdio/netbird/client/internal/listener"
)
type eventKind int
const (
eventRoutes eventKind = iota
eventIfaceIP
eventIfaceIPv6
eventDNS
)
var (
_ listener.NetworkChangeListener = (*Notifier)(nil)
_ dns.IosDnsManager = (*Notifier)(nil)
)
type event struct {
kind eventKind
payload string
}
type Notifier struct {
mu sync.Mutex
cond *sync.Cond
queue *list.List
closed bool
done chan struct{}
listener listener.NetworkChangeListener
dnsManager dns.IosDnsManager
}
func New(l listener.NetworkChangeListener, dm dns.IosDnsManager) *Notifier {
n := &Notifier{
queue: list.New(),
done: make(chan struct{}),
listener: l,
dnsManager: dm,
}
n.cond = sync.NewCond(&n.mu)
go n.deliverLoop()
return n
}
func (n *Notifier) OnNetworkChanged(routes string) {
n.enqueue(event{kind: eventRoutes, payload: routes})
}
func (n *Notifier) SetInterfaceIP(ip string) {
n.enqueue(event{kind: eventIfaceIP, payload: ip})
}
func (n *Notifier) SetInterfaceIPv6(ip string) {
n.enqueue(event{kind: eventIfaceIPv6, payload: ip})
}
func (n *Notifier) ApplyDns(config string) {
n.enqueue(event{kind: eventDNS, payload: config})
}
// Close stops accepting new events and blocks until the delivery loop has
// drained all queued events and exited.
func (n *Notifier) Close() {
n.mu.Lock()
n.closed = true
n.cond.Signal()
n.mu.Unlock()
<-n.done
}
func (n *Notifier) enqueue(ev event) {
n.mu.Lock()
defer n.mu.Unlock()
if n.closed {
return
}
n.queue.PushBack(ev)
n.cond.Signal()
}
func (n *Notifier) deliverLoop() {
defer close(n.done)
for {
n.mu.Lock()
for n.queue.Len() == 0 && !n.closed {
n.cond.Wait()
}
if n.closed && n.queue.Len() == 0 {
n.mu.Unlock()
return
}
ev := n.queue.Remove(n.queue.Front()).(event)
l := n.listener
dm := n.dnsManager
n.mu.Unlock()
switch ev.kind {
case eventRoutes:
if l != nil {
l.OnNetworkChanged(ev.payload)
}
case eventIfaceIP:
if l != nil {
l.SetInterfaceIP(ev.payload)
}
case eventIfaceIPv6:
if l != nil {
l.SetInterfaceIPv6(ev.payload)
}
case eventDNS:
if dm != nil {
dm.ApplyDns(ev.payload)
}
}
}
}

View File

@@ -0,0 +1,192 @@
package tunnelnotifier
import (
"fmt"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type call struct {
kind string
payload string
}
type recorder struct {
mu sync.Mutex
calls []call
inFlight atomic.Int32
overlap atomic.Bool
delay time.Duration
}
func (r *recorder) record(kind, payload string) {
if r.inFlight.Add(1) != 1 {
r.overlap.Store(true)
}
if r.delay > 0 {
time.Sleep(r.delay)
}
r.mu.Lock()
r.calls = append(r.calls, call{kind: kind, payload: payload})
r.mu.Unlock()
r.inFlight.Add(-1)
}
func (r *recorder) count() int {
r.mu.Lock()
defer r.mu.Unlock()
return len(r.calls)
}
func (r *recorder) snapshot() []call {
r.mu.Lock()
defer r.mu.Unlock()
out := make([]call, len(r.calls))
copy(out, r.calls)
return out
}
type fakeListener struct {
rec *recorder
}
func (f *fakeListener) OnNetworkChanged(routes string) {
f.rec.record("routes", routes)
}
func (f *fakeListener) SetInterfaceIP(ip string) {
f.rec.record("ip", ip)
}
func (f *fakeListener) SetInterfaceIPv6(ip string) {
f.rec.record("ipv6", ip)
}
type fakeDNSManager struct {
rec *recorder
}
func (f *fakeDNSManager) ApplyDns(config string) {
f.rec.record("dns", config)
}
func TestFIFOOrder(t *testing.T) {
rec := &recorder{}
n := New(&fakeListener{rec: rec}, &fakeDNSManager{rec: rec})
defer n.Close()
n.SetInterfaceIP("10.0.0.1")
n.SetInterfaceIPv6("fd00::1")
n.ApplyDns(`{"domains":[]}`)
n.OnNetworkChanged("10.0.0.0/8,192.168.0.0/16")
n.ApplyDns(`{"domains":["example.com"]}`)
require.Eventually(t, func() bool { return rec.count() == 5 }, time.Second, time.Millisecond)
expected := []call{
{kind: "ip", payload: "10.0.0.1"},
{kind: "ipv6", payload: "fd00::1"},
{kind: "dns", payload: `{"domains":[]}`},
{kind: "routes", payload: "10.0.0.0/8,192.168.0.0/16"},
{kind: "dns", payload: `{"domains":["example.com"]}`},
}
assert.Equal(t, expected, rec.snapshot())
}
func TestNoOverlappingCalls(t *testing.T) {
rec := &recorder{delay: 100 * time.Microsecond}
n := New(&fakeListener{rec: rec}, &fakeDNSManager{rec: rec})
defer n.Close()
const producers = 8
const perProducer = 25
var wg sync.WaitGroup
for i := 0; i < producers; i++ {
wg.Add(1)
go func(id int) {
defer wg.Done()
for j := 0; j < perProducer; j++ {
payload := fmt.Sprintf("%d-%d", id, j)
switch j % 4 {
case 0:
n.OnNetworkChanged(payload)
case 1:
n.SetInterfaceIP(payload)
case 2:
n.SetInterfaceIPv6(payload)
case 3:
n.ApplyDns(payload)
}
}
}(i)
}
wg.Wait()
require.Eventually(t, func() bool { return rec.count() == producers*perProducer }, 5*time.Second, time.Millisecond)
assert.False(t, rec.overlap.Load())
}
func TestDNSAndRoutesInterleaved(t *testing.T) {
rec := &recorder{delay: 100 * time.Microsecond}
n := New(&fakeListener{rec: rec}, &fakeDNSManager{rec: rec})
defer n.Close()
const events = 50
var wg sync.WaitGroup
wg.Add(2)
go func() {
defer wg.Done()
for i := 0; i < events; i++ {
n.ApplyDns(fmt.Sprintf("dns-%d", i))
}
}()
go func() {
defer wg.Done()
for i := 0; i < events; i++ {
n.OnNetworkChanged(fmt.Sprintf("routes-%d", i))
}
}()
wg.Wait()
require.Eventually(t, func() bool { return rec.count() == 2*events }, 5*time.Second, time.Millisecond)
assert.False(t, rec.overlap.Load())
var dnsSeen, routesSeen int
for _, c := range rec.snapshot() {
switch c.kind {
case "dns":
assert.Equal(t, fmt.Sprintf("dns-%d", dnsSeen), c.payload)
dnsSeen++
case "routes":
assert.Equal(t, fmt.Sprintf("routes-%d", routesSeen), c.payload)
routesSeen++
}
}
assert.Equal(t, events, dnsSeen)
assert.Equal(t, events, routesSeen)
}
func TestCloseDrainsQueue(t *testing.T) {
rec := &recorder{delay: time.Millisecond}
n := New(&fakeListener{rec: rec}, &fakeDNSManager{rec: rec})
const events = 20
for i := 0; i < events; i++ {
n.OnNetworkChanged(fmt.Sprintf("routes-%d", i))
}
n.Close()
require.Equal(t, events, rec.count(), "Close must not return before all queued events are delivered")
n.OnNetworkChanged("after-close")
n.ApplyDns("after-close")
time.Sleep(50 * time.Millisecond)
assert.Equal(t, events, rec.count())
}

View File

@@ -13,7 +13,6 @@ import (
"time"
log "github.com/sirupsen/logrus"
"golang.org/x/exp/maps"
"github.com/netbirdio/netbird/client/internal"
"github.com/netbirdio/netbird/client/internal/auth"
@@ -637,23 +636,18 @@ func (c *Client) SelectRoute(id string) error {
}
routeManager := engine.GetRouteManager()
routeSelector := routeManager.GetRouteSelector()
if id == "All" {
log.Debugf("select all routes")
routeSelector.SelectAllRoutes()
} else {
log.Debugf("select route with id: %s", id)
routes := toNetIDs([]string{id})
routesMap := routeManager.GetClientRoutesWithNetID()
routes = route.ExpandV6ExitPairs(routes, routesMap)
if err := routeSelector.SelectRoutes(routes, true, maps.Keys(routesMap)); err != nil {
log.Debugf("error when selecting routes: %s", err)
return fmt.Errorf("select routes: %w", err)
}
routeManager.SelectAllRoutes()
return nil
}
routeManager.TriggerSelection(routeManager.GetClientRoutes())
return nil
log.Debugf("select route with id: %s", id)
if err := routeManager.SelectRoutes(toNetIDs([]string{id}), true); err != nil {
log.Debugf("error when selecting routes: %s", err)
return err
}
return nil
}
func (c *Client) DeselectRoute(id string) error {
@@ -667,21 +661,17 @@ func (c *Client) DeselectRoute(id string) error {
}
routeManager := engine.GetRouteManager()
routeSelector := routeManager.GetRouteSelector()
if id == "All" {
log.Debugf("deselect all routes")
routeSelector.DeselectAllRoutes()
} else {
log.Debugf("deselect route with id: %s", id)
routes := toNetIDs([]string{id})
routesMap := routeManager.GetClientRoutesWithNetID()
routes = route.ExpandV6ExitPairs(routes, routesMap)
if err := routeSelector.DeselectRoutes(routes, maps.Keys(routesMap)); err != nil {
log.Debugf("error when deselecting routes: %s", err)
return fmt.Errorf("deselect routes: %w", err)
}
routeManager.DeselectAllRoutes()
return nil
}
log.Debugf("deselect route with id: %s", id)
if err := routeManager.DeselectRoutes(toNetIDs([]string{id})); err != nil {
log.Debugf("error when deselecting routes: %s", err)
return err
}
routeManager.TriggerSelection(routeManager.GetClientRoutes())
return nil
}

View File

@@ -0,0 +1,12 @@
//go:build ios
package NetBirdSDK
import "github.com/netbirdio/netbird/version"
// GoClientVersion returns the NetBird Go client version that was baked into
// the framework at compile time via
// -ldflags "-X github.com/netbirdio/netbird/version.version=<version>".
func GoClientVersion() string {
return version.NetbirdVersion()
}

View File

@@ -0,0 +1,127 @@
package server
import (
"context"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
"google.golang.org/grpc/codes"
gstatus "google.golang.org/grpc/status"
"github.com/netbirdio/netbird/client/internal"
"github.com/netbirdio/netbird/client/internal/profilemanager"
"github.com/netbirdio/netbird/client/proto"
)
// A refused login must not leave the profile switched. Login can both switch
// profiles and carry the guarded config fields, so the gate has to run before the
// switch: otherwise a caller whose change is refused still gets the side effect of
// activating whichever profile the request named.
func TestLogin_RefusedChangeLeavesTheProfileAlone(t *testing.T) {
s, _, activeProfile, username, _ := setupServerWithProfile(t)
// Login reads process state off the daemon's root context.
s.rootCtx = internal.CtxInitState(context.Background())
// A second profile that runs the SSH server, which is what makes repointing
// its management binding a privileged change.
target := "ssh-enabled"
_, err := profilemanager.UpdateOrCreateConfig(profilemanager.ConfigInput{
ConfigPath: filepath.Join(profilemanager.DefaultConfigPathDir, target+".json"),
ManagementURL: "https://api.netbird.io:443",
ServerSSHAllowed: boolPtr(true),
})
require.NoError(t, err)
_, err = s.Login(userCtx(), &proto.LoginRequest{
ProfileName: &target,
Username: &username,
ManagementUrl: "https://mgmt.attacker.example:443",
})
require.Error(t, err, "an unprivileged caller must not move the management URL of an SSH-enabled profile")
require.Equal(t, codes.PermissionDenied, gstatus.Code(err), "want a privilege refusal, got %v", err)
active, err := s.profileManager.GetActiveProfileState()
require.NoError(t, err)
require.Equal(t, profilemanager.ID(activeProfile), active.ID,
"the refused login switched the active profile anyway")
}
// A caller whose change becomes privileged only after its first check must be
// refused without having cancelled a login or switched profiles: the first check is
// unsynchronized, so the SSH server can be enabled by a concurrent privileged
// request in between, and the authoritative check happens before any side effect.
func TestLogin_ChangeThatBecomesPrivilegedMidRequestHasNoSideEffects(t *testing.T) {
s, _, activeProfile, username, _ := setupServerWithProfile(t)
s.rootCtx = internal.CtxInitState(context.Background())
// The target profile has SSH off, so the first check lets the request through.
target := "ssh-later"
targetPath := filepath.Join(profilemanager.DefaultConfigPathDir, target+".json")
_, err := profilemanager.UpdateOrCreateConfig(profilemanager.ConfigInput{
ConfigPath: targetPath,
ManagementURL: "https://api.netbird.io:443",
ServerSSHAllowed: boolPtr(false),
})
require.NoError(t, err)
cancelled := false
s.actCancel = func() { cancelled = true }
// Stand in for a privileged SetConfig that enables the SSH server between the
// two checks, which is the interleaving the lock has to make safe.
afterLoginPreCheck = func() {
_, err := profilemanager.UpdateOrCreateConfig(profilemanager.ConfigInput{
ConfigPath: targetPath,
ServerSSHAllowed: boolPtr(true),
})
require.NoError(t, err)
}
t.Cleanup(func() { afterLoginPreCheck = nil })
_, err = s.Login(userCtx(), &proto.LoginRequest{
ProfileName: &target,
Username: &username,
ManagementUrl: "https://mgmt.attacker.example:443",
})
require.Error(t, err)
require.Equal(t, codes.PermissionDenied, gstatus.Code(err), "want a privilege refusal, got %v", err)
require.False(t, cancelled, "the refused login cancelled the login already in progress")
active, err := s.profileManager.GetActiveProfileState()
require.NoError(t, err)
require.Equal(t, profilemanager.ID(activeProfile), active.ID, "the refused login switched the active profile anyway")
stored, err := profilemanager.ReadConfig(targetPath)
require.NoError(t, err)
require.Equal(t, "https://api.netbird.io:443", stored.ManagementURL.String(), "the refused login moved the management URL")
}
// Login cancels whatever login is already in progress before starting its own. A
// refused caller must not get that far, otherwise anyone able to reach the socket
// can abort someone else's login by sending a request that is denied.
func TestLogin_RefusedChangeLeavesAnInProgressLoginAlone(t *testing.T) {
s, _, _, username, _ := setupServerWithProfile(t)
s.rootCtx = internal.CtxInitState(context.Background())
target := "ssh-enabled"
_, err := profilemanager.UpdateOrCreateConfig(profilemanager.ConfigInput{
ConfigPath: filepath.Join(profilemanager.DefaultConfigPathDir, target+".json"),
ManagementURL: "https://api.netbird.io:443",
ServerSSHAllowed: boolPtr(true),
})
require.NoError(t, err)
cancelled := false
s.actCancel = func() { cancelled = true }
_, err = s.Login(userCtx(), &proto.LoginRequest{
ProfileName: &target,
Username: &username,
ManagementUrl: "https://mgmt.attacker.example:443",
})
require.Error(t, err)
require.Equal(t, codes.PermissionDenied, gstatus.Code(err), "want a privilege refusal, got %v", err)
require.False(t, cancelled, "the refused login cancelled the login already in progress")
}

View File

@@ -8,7 +8,6 @@ import (
"sort"
"strings"
"golang.org/x/exp/maps"
"google.golang.org/grpc/codes"
gstatus "google.golang.org/grpc/status"
@@ -161,30 +160,11 @@ func (s *Server) SelectNetworks(_ context.Context, req *proto.SelectNetworksRequ
return nil, fmt.Errorf("no route manager")
}
routeSelector := routeManager.GetRouteSelector()
if req.GetAll() {
routeSelector.SelectAllRoutes()
} else {
routes := toNetIDs(req.GetNetworkIDs())
routesMap := routeManager.GetClientRoutesWithNetID()
routes = route.ExpandV6ExitPairs(routes, routesMap)
netIdRoutes := maps.Keys(routesMap)
if err := routeSelector.SelectRoutes(routes, req.GetAppend(), netIdRoutes); err != nil {
return nil, fmt.Errorf("select routes: %w", err)
}
// Exit nodes are mutually exclusive: if this selection activates an
// exit node, deselect every other available exit node so two can't be
// selected at once. Non-exit route selections are left untouched.
if requestActivatesExitNode(routes, routesMap) {
if others := otherExitNodeIDs(routesMap, routes); len(others) > 0 {
if err := routeSelector.DeselectRoutes(others, netIdRoutes); err != nil {
return nil, fmt.Errorf("deselect sibling exit nodes: %w", err)
}
}
}
routeManager.SelectAllRoutes()
} else if err := routeManager.SelectRoutes(toNetIDs(req.GetNetworkIDs()), req.GetAppend()); err != nil {
return nil, err
}
routeManager.TriggerSelection(routeManager.GetClientRoutes())
s.statusRecorder.PublishEvent(
proto.SystemEvent_INFO,
@@ -224,19 +204,11 @@ func (s *Server) DeselectNetworks(_ context.Context, req *proto.SelectNetworksRe
return nil, fmt.Errorf("no route manager")
}
routeSelector := routeManager.GetRouteSelector()
if req.GetAll() {
routeSelector.DeselectAllRoutes()
} else {
routes := toNetIDs(req.GetNetworkIDs())
routesMap := routeManager.GetClientRoutesWithNetID()
routes = route.ExpandV6ExitPairs(routes, routesMap)
netIdRoutes := maps.Keys(routesMap)
if err := routeSelector.DeselectRoutes(routes, netIdRoutes); err != nil {
return nil, fmt.Errorf("deselect routes: %w", err)
}
routeManager.DeselectAllRoutes()
} else if err := routeManager.DeselectRoutes(toNetIDs(req.GetNetworkIDs())); err != nil {
return nil, err
}
routeManager.TriggerSelection(routeManager.GetClientRoutes())
s.statusRecorder.PublishEvent(
proto.SystemEvent_INFO,
@@ -261,37 +233,3 @@ func toNetIDs(routes []string) []route.NetID {
return netIDs
}
func isExitNodeRoutes(routes []*route.Route) bool {
return len(routes) > 0 && (route.IsV4DefaultRoute(routes[0].Network) || route.IsV6DefaultRoute(routes[0].Network))
}
// requestActivatesExitNode reports whether any requested NetID maps to an exit
// node (default route) in the current route table.
func requestActivatesExitNode(requested []route.NetID, routesMap map[route.NetID][]*route.Route) bool {
for _, id := range requested {
if isExitNodeRoutes(routesMap[id]) {
return true
}
}
return false
}
// otherExitNodeIDs returns every available exit-node NetID that is not in the
// requested set — the siblings to deselect so a single exit node stays active.
func otherExitNodeIDs(routesMap map[route.NetID][]*route.Route, requested []route.NetID) []route.NetID {
keep := make(map[route.NetID]struct{}, len(requested))
for _, id := range requested {
keep[id] = struct{}{}
}
var others []route.NetID
for id, routes := range routesMap {
if !isExitNodeRoutes(routes) {
continue
}
if _, ok := keep[id]; ok {
continue
}
others = append(others, id)
}
return others
}

View File

@@ -1,26 +0,0 @@
package server
import (
"net/netip"
"testing"
"github.com/stretchr/testify/assert"
"github.com/netbirdio/netbird/route"
)
func TestExitNodeSelectionHelpers(t *testing.T) {
routesMap := map[route.NetID][]*route.Route{
"exitA": {{Network: netip.MustParsePrefix("0.0.0.0/0")}},
"exitB": {{Network: netip.MustParsePrefix("::/0")}},
"lan": {{Network: netip.MustParsePrefix("192.168.0.0/16")}},
}
assert.True(t, requestActivatesExitNode([]route.NetID{"exitA"}, routesMap), "v4 default route is an exit node")
assert.True(t, requestActivatesExitNode([]route.NetID{"exitB"}, routesMap), "v6 default route is an exit node")
assert.False(t, requestActivatesExitNode([]route.NetID{"lan"}, routesMap), "lan route is not an exit node")
assert.False(t, requestActivatesExitNode([]route.NetID{"missing"}, routesMap), "unknown id is not an exit node")
others := otherExitNodeIDs(routesMap, []route.NetID{"exitB"})
assert.ElementsMatch(t, []route.NetID{"exitA"}, others, "only the other exit node is a sibling; the lan route is ignored")
}

View File

@@ -82,6 +82,12 @@ type Server struct {
// extend flow or vice versa.
extendAuthSessionFlow *auth.PendingFlow
// guardedConfigMu serializes a privilege check against the write it
// authorizes. Without it the two are separate steps over the same file, and a
// change that was allowed because the profile had the SSH server disabled
// could land after a concurrent privileged request enabled it.
guardedConfigMu sync.Mutex
mutex sync.Mutex
config *profilemanager.Config
proto.UnimplementedDaemonServiceServer
@@ -411,6 +417,20 @@ func (s *Server) SetConfig(callerCtx context.Context, msg *proto.SetConfigReques
return nil, err
}
// Privilege gate: refuse the parts of the request that would let a local
// user turn the root daemon into a root shell. Held across the write so the
// config cannot gain the SSH server between the decision and the update.
s.guardedConfigMu.Lock()
defer s.guardedConfigMu.Unlock()
stored, err := s.storedProfileConfig(msg.ProfileName, msg.Username)
if err != nil {
return nil, err
}
if err := requirePrivilegeForConfigChange(callerCtx, stored, privilegedChangeFromSetConfig(msg)); err != nil {
return nil, err
}
config, err := s.setConfigInputFromRequest(msg)
if err != nil {
return nil, err
@@ -537,22 +557,23 @@ func (s *Server) Login(callerCtx context.Context, msg *proto.LoginRequest) (*pro
}
}
s.mutex.Lock()
if s.actCancel != nil {
s.actCancel()
}
ctx, cancel := context.WithCancel(callerCtx)
md, ok := metadata.FromIncomingContext(callerCtx)
if ok {
ctx = metadata.NewOutgoingContext(ctx, md)
activeProf, err := s.profileManager.GetActiveProfileState()
if err != nil {
log.Errorf("failed to get active profile state: %v", err)
return nil, fmt.Errorf("failed to get active profile state: %w", err)
}
s.actCancel = cancel
s.mutex.Unlock()
if err := RestoreResidualState(s.rootCtx, s.profileManager.GetStatePath()); err != nil {
log.Warnf(errRestoreResidualState, err)
// Privilege gate: same restrictions as SetConfig, since LoginRequest can carry
// the same fields. It runs before anything here changes daemon state, so a
// refused login neither switches the profile nor cancels a login already in
// progress, and it reads the profile the request targets, which is the one the
// switch below would activate.
stored, err := s.storedLoginConfig(activeProf, msg)
if err != nil {
return nil, err
}
if err := requirePrivilegeForConfigChange(callerCtx, stored, privilegedChangeFromLogin(msg)); err != nil {
return nil, err
}
state := internal.CtxGetState(s.rootCtx)
@@ -563,23 +584,16 @@ func (s *Server) Login(callerCtx context.Context, msg *proto.LoginRequest) (*pro
}
}()
activeProf, err := s.profileManager.GetActiveProfileState()
ctx, activeProf, err := s.authorizeAndPrepareLogin(callerCtx, msg, activeProf)
if err != nil {
log.Errorf("failed to get active profile state: %v", err)
return nil, fmt.Errorf("failed to get active profile state: %w", err)
}
if msg.ProfileName != nil {
if _, err := s.switchProfileIfNeeded(*msg.ProfileName, msg.Username, activeProf); err != nil {
log.Errorf("failed to switch profile: %v", err)
return nil, err
// The RPC boundary is where this gets recorded: nothing logs handler
// errors for us, and a caller that retries would otherwise leave no
// trace in the daemon log. A refusal is skipped because the gate has
// already logged the decision, with the caller's identity.
if gstatus.Code(err) != codes.PermissionDenied {
log.Errorf("failed to prepare login: %v", err)
}
}
activeProf, err = s.profileManager.GetActiveProfileState()
if err != nil {
log.Errorf("failed to get active profile state: %v", err)
return nil, fmt.Errorf("failed to get active profile state: %w", err)
return nil, err
}
log.Infof("active profile: %s for %s", activeProf.ID, activeProf.Username)
@@ -593,11 +607,6 @@ func (s *Server) Login(callerCtx context.Context, msg *proto.LoginRequest) (*pro
s.mutex.Unlock()
if err := persistLoginOverrides(activeProf, msg.ManagementUrl, msg.OptionalPreSharedKey); err != nil {
log.Errorf("failed to persist login overrides: %v", err)
return nil, fmt.Errorf("persist login overrides: %w", err)
}
config, _, err := s.getConfig(activeProf)
if err != nil {
log.Errorf("failed to get active profile config: %v", err)
@@ -980,6 +989,63 @@ func (s *Server) waitForUp(callerCtx context.Context) (*proto.UpResponse, error)
}
}
// storedProfileConfig loads the on-disk config of the profile a request
// targets, so a privileged-change decision can be made against the values the
// profile currently holds. A profile that has no config file yet yields nil,
// which every caller must read as "nothing enabled yet".
func (s *Server) storedProfileConfig(handle, username string) (*profilemanager.Config, error) {
resolved, err := s.resolveProfileHandle(handle, username)
if err != nil {
return nil, err
}
path := resolved.Path
if path == "" {
path = profilemanager.DefaultConfigPath
}
return s.storedConfigAtPath(path)
}
// storedLoginConfig loads the on-disk config of the profile a login request
// targets: the one it names, or the active one when it names none. Used to decide
// a privileged change before the request is allowed to switch profiles.
func (s *Server) storedLoginConfig(activeProf *profilemanager.ActiveProfileState, msg *proto.LoginRequest) (*profilemanager.Config, error) {
if msg.ProfileName == nil {
cfgPath, err := activeProf.FilePath()
if err != nil {
return nil, fmt.Errorf("active profile file path: %w", err)
}
return s.storedConfigAtPath(cfgPath)
}
// Mirrors switchProfileIfNeeded: the default profile resolves without a
// username, so this reads the same profile the switch would activate.
handle := *msg.ProfileName
username := ""
if handle != profilemanager.DefaultProfileName {
username = msg.GetUsername()
}
return s.storedProfileConfig(handle, username)
}
// storedConfigAtPath reads a profile config file, yielding nil when it does not
// exist yet.
func (s *Server) storedConfigAtPath(path string) (*profilemanager.Config, error) {
if _, err := os.Stat(path); err != nil {
if os.IsNotExist(err) {
return nil, nil //nolint:nilnil
}
return nil, fmt.Errorf("stat profile config: %w", err)
}
cfg, err := profilemanager.GetConfig(path)
if err != nil {
return nil, fmt.Errorf("read profile config: %w", err)
}
return cfg, nil
}
// resolveProfileHandle resolves a wire-level profile handle (display
// name, ID, or unique ID prefix) to a concrete profile. Returns gRPC
// status errors so handlers can return them directly.
@@ -1197,6 +1263,12 @@ func (s *Server) handleProfileLogout(ctx context.Context, msg *proto.LogoutReque
if err := s.logoutFromProfile(ctx, resolved); err != nil {
log.Errorf("failed to logout from profile %s: %v", resolved.ID, err)
// A refused deregistration is already a status error carrying the reason
// and the command to run; rewrapping it as Internal would flatten both
// into a gRPC dump for the user.
if _, isStatus := gstatus.FromError(err); isStatus {
return nil, err
}
return nil, gstatus.Errorf(codes.Internal, "logout: %v", err)
}
@@ -1318,6 +1390,13 @@ func (s *Server) sendLogoutRequest(ctx context.Context) error {
}
func (s *Server) sendLogoutRequestWithConfig(ctx context.Context, config *profilemanager.Config) error {
// Privilege gate: deregistering frees this machine's key to be registered
// against another management server, which is only restricted while the SSH
// server makes that a privilege handover.
if err := requirePrivilegeForDeregistration(ctx, config); err != nil {
return err
}
key, err := wgtypes.ParseKey(config.PrivateKey)
if err != nil {
return fmt.Errorf("parse private key: %w", err)
@@ -2063,7 +2142,10 @@ func (s *Server) RemoveProfile(ctx context.Context, msg *proto.RemoveProfileRequ
}
if err := s.logoutFromProfile(ctx, resolved); err != nil {
log.Warnf("failed to logout from profile %s before removal: %v", resolved.ID, err)
// Deregistration is best-effort here: the local profile is removed
// either way, so an unprivileged caller leaves the peer registered on
// the management server rather than being blocked from removing it.
log.Warnf("removing profile %s locally without deregistering it: %v", resolved.ID, err)
}
if err := s.profileManager.RemoveProfile(resolved.ID, msg.Username); err != nil {
@@ -2360,6 +2442,69 @@ func sendTerminalNotification() error {
// persistLoginOverrides writes management URL and pre-shared key from a LoginRequest to the
// active profile config so that subsequent reads pick them up. Empty/nil values are ignored.
// afterLoginPreCheck is a seam for tests to run a concurrent config change
// between Login's first privilege check and the authoritative one.
var afterLoginPreCheck func()
// authorizeAndPrepareLogin makes the authoritative privilege decision for a login
// and, when it passes, carries out every state change that decision authorizes:
// cancelling an login already in progress, switching to the requested profile, and
// persisting the config overrides the request carries.
//
// All of it happens under guardedConfigMu, which SetConfig also holds across its
// own check and write. Login's earlier check refuses the ordinary case before any
// of this is reached; this one exists because that check is not synchronized
// against a concurrent privileged request that enables the SSH server, and a
// caller refused here must not have cancelled or switched anything either.
func (s *Server) authorizeAndPrepareLogin(callerCtx context.Context, msg *proto.LoginRequest, activeProf *profilemanager.ActiveProfileState) (context.Context, *profilemanager.ActiveProfileState, error) {
if afterLoginPreCheck != nil {
afterLoginPreCheck()
}
s.guardedConfigMu.Lock()
defer s.guardedConfigMu.Unlock()
stored, err := s.storedLoginConfig(activeProf, msg)
if err != nil {
return nil, nil, err
}
if err := requirePrivilegeForConfigChange(callerCtx, stored, privilegedChangeFromLogin(msg)); err != nil {
return nil, nil, err
}
s.mutex.Lock()
if s.actCancel != nil {
s.actCancel()
}
ctx, cancel := context.WithCancel(callerCtx)
if md, ok := metadata.FromIncomingContext(callerCtx); ok {
ctx = metadata.NewOutgoingContext(ctx, md)
}
s.actCancel = cancel
s.mutex.Unlock()
if err := RestoreResidualState(s.rootCtx, s.profileManager.GetStatePath()); err != nil {
log.Warnf(errRestoreResidualState, err)
}
if msg.ProfileName != nil {
if _, err := s.switchProfileIfNeeded(*msg.ProfileName, msg.Username, activeProf); err != nil {
return nil, nil, fmt.Errorf("switch profile: %w", err)
}
}
activeProf, err = s.profileManager.GetActiveProfileState()
if err != nil {
return nil, nil, fmt.Errorf("active profile state: %w", err)
}
if err := persistLoginOverrides(activeProf, msg.ManagementUrl, msg.OptionalPreSharedKey); err != nil {
return nil, nil, fmt.Errorf("persist login overrides: %w", err)
}
return ctx, activeProf, nil
}
func persistLoginOverrides(activeProf *profilemanager.ActiveProfileState, managementURL string, preSharedKey *string) error {
if preSharedKey != nil && *preSharedKey == "" {
preSharedKey = nil

View File

@@ -66,7 +66,11 @@ func setupServerWithProfile(t *testing.T) (s *Server, ctx context.Context, profN
Username: currUser.Username,
}))
ctx = context.Background()
// The privileged-change gate reads the caller's kernel identity from the
// context, which a real caller gets from the daemon's transport credentials.
// This test drives the handler directly, so it stands in for a root caller;
// without an identity the gate would (correctly) refuse the SSH fields.
ctx = privilegedTestCtx()
s = New(ctx, "console", "", false, false, false, false)
return s, ctx, profName, currUser.Username, cfgPath
}

View File

@@ -1,7 +1,6 @@
package server
import (
"context"
"os/user"
"path/filepath"
"reflect"
@@ -52,7 +51,11 @@ func TestSetConfig_AllFieldsSaved(t *testing.T) {
})
require.NoError(t, err)
ctx := context.Background()
// The privileged-change gate reads the caller's kernel identity from the
// context, which a real caller gets from the daemon's transport credentials.
// This test drives the handler directly, so it stands in for a root caller;
// without an identity the gate would (correctly) refuse the SSH fields.
ctx := privilegedTestCtx()
s := New(ctx, "console", "", false, false, false, false)
rosenpassEnabled := true

282
client/server/ssh_gate.go Normal file
View File

@@ -0,0 +1,282 @@
package server
import (
"context"
"fmt"
"net/url"
"runtime"
"strings"
log "github.com/sirupsen/logrus"
"google.golang.org/genproto/googleapis/rpc/errdetails"
"google.golang.org/grpc/codes"
gstatus "google.golang.org/grpc/status"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/ipcauth"
"github.com/netbirdio/netbird/client/internal/profilemanager"
"github.com/netbirdio/netbird/client/proto"
"github.com/netbirdio/netbird/util"
)
// The daemon runs as root/LocalSystem, so a handful of config changes cross the
// user-to-root boundary and are restricted to privileged callers:
//
// - Enabling SSH root login, or disabling SSH authentication, turns the
// daemon's SSH server into a root (or unauthenticated) shell.
// - Enabling the SSH server at all is what makes the above reachable, and a
// profile the caller owns is not a privilege they hold.
// - While the SSH server is enabled, repointing the profile at another
// management identity hands SSH authorization decisions, including which
// keys and users are accepted, to whoever controls that identity. Changing
// the management URL and deregistering the peer are both ways to do that.
//
// Everything else stays unauthenticated, so this is not an authorization model:
// it only refuses the changes that would let a local user become root. A caller
// whose identity cannot be established is refused as well.
// privilegedConfigChange is the subset of a config request that crosses the
// user-to-root boundary. Fields are nil or empty when the request leaves them
// untouched.
type privilegedConfigChange struct {
managementURL string
serverSSHAllowed *bool
enableSSHRoot *bool
disableSSHAuth *bool
}
func privilegedChangeFromSetConfig(msg *proto.SetConfigRequest) privilegedConfigChange {
return privilegedConfigChange{
managementURL: msg.GetManagementUrl(),
serverSSHAllowed: msg.ServerSSHAllowed,
enableSSHRoot: msg.EnableSSHRoot,
disableSSHAuth: msg.DisableSSHAuth,
}
}
func privilegedChangeFromLogin(msg *proto.LoginRequest) privilegedConfigChange {
return privilegedConfigChange{
managementURL: msg.GetManagementUrl(),
serverSSHAllowed: msg.ServerSSHAllowed,
enableSSHRoot: msg.EnableSSHRoot,
disableSSHAuth: msg.DisableSSHAuth,
}
}
// requirePrivilegeForConfigChange refuses the privileged parts of a config
// change when the caller is not root/administrator. stored is the profile's
// current config, or nil when it has none yet.
//
// Each check compares against the stored value so that a request restating a
// value it does not change is never refused: a UI that submits the whole
// settings form must not start failing once an administrator has enabled SSH.
func requirePrivilegeForConfigChange(ctx context.Context, stored *profilemanager.Config, change privilegedConfigChange) error {
if enables(storedFlag(stored, func(c *profilemanager.Config) *bool { return c.EnableSSHRoot }), change.enableSSHRoot) {
return denyPrivileged(ctx, "enabling SSH root login", ipcauth.UpCommand("--enable-ssh-root"))
}
if enables(storedFlag(stored, func(c *profilemanager.Config) *bool { return c.DisableSSHAuth }), change.disableSSHAuth) {
return denyPrivileged(ctx, "disabling SSH authentication", ipcauth.UpCommand("--disable-ssh-auth"))
}
if enables(sshServerCurrentlyAllowed(stored), change.serverSSHAllowed) {
return denyPrivileged(ctx, "enabling the NetBird SSH server", ipcauth.UpCommand("--allow-server-ssh"))
}
// Only guard the management binding while the SSH server is enabled: that is
// when the management identity decides who may open a shell here.
if !sshServerEnabled(stored) {
return nil
}
if change.managementURL != "" && !sameManagementURL(stored.ManagementURL, change.managementURL) {
return denyPrivileged(ctx,
"changing the management URL while the NetBird SSH server is enabled",
ipcauth.UpCommand("-m "+change.managementURL))
}
return nil
}
// requirePrivilegeForDeregistration refuses to deregister the peer from the
// management server when the caller is not privileged and the profile has the
// SSH server enabled. Deregistering frees the peer's key to be registered
// against another management identity, which is the same handover the
// management URL check refuses.
//
// Callers that treat deregistration as best-effort (profile removal) continue
// without it; callers that were asked to deregister surface the error.
func requirePrivilegeForDeregistration(ctx context.Context, cfg *profilemanager.Config) error {
if !sshServerEnabled(cfg) {
return nil
}
return denyPrivileged(ctx,
"deregistering this peer while the NetBird SSH server is enabled",
ipcauth.ElevatedCommand("netbird logout"))
}
// denyPrivileged returns nil when the caller is privileged, and otherwise a
// PermissionDenied whose message names the action and the command that performs
// it with the privileges it needs. The same summary and command ride along as an
// ErrorInfo detail so the CLI and the UI can present them without parsing text.
//
// action reads as the subject of a sentence ("enabling SSH root login"), and
// command is the equivalent command, already elevated for the platform.
func denyPrivileged(ctx context.Context, action, command string) error {
id, ok := ipcauth.CallerIdentity(ctx)
if !ok {
log.Warnf("denying %s: the caller's identity cannot be verified on this control channel", action)
return privilegeError(unidentifiedSummary(action), reinstallCommand())
}
if ipcauth.IsPrivilegedCaller(id) {
log.Infof("allowing %s for privileged caller %s", action, id)
return nil
}
log.Warnf("denying %s for unprivileged caller %s", action, id)
actor, command := requiredActor(command)
return privilegeError(privilegeSummary(action, actor), command)
}
// requiredActor names who may perform the operation and adjusts the command to
// match. A daemon that is not itself privileged delegates to its own identity, so
// telling that host's user to become root is wrong twice over: root is not what the
// daemon checks for, and a rootless container has neither root nor sudo.
func requiredActor(command string) (string, string) {
self, delegates := ipcauth.SelfDelegatesTo()
if !delegates {
return ipcauth.PrivilegedActor(), command
}
return fmt.Sprintf("the user the daemon runs as (%s)", self), strings.ReplaceAll(command, "sudo ", "")
}
// privilegeError builds the PermissionDenied carrying summary and command.
func privilegeError(summary, command string) error {
st := gstatus.New(codes.PermissionDenied, fmt.Sprintf("%s\n\n%s", summary, command))
detailed, err := st.WithDetails(&errdetails.ErrorInfo{
Reason: ipcauth.ErrorReasonPrivilegeRequired,
Domain: ipcauth.ErrorDomain,
Metadata: map[string]string{
ipcauth.ErrorMetaSummary: summary,
ipcauth.ErrorMetaCommand: command,
},
})
if err != nil {
log.Debugf("attach privilege error detail: %v", err)
return st.Err()
}
return detailed.Err()
}
// privilegeSummary states what is refused and what it needs, in one sentence
// that reads the same in a dialog and in a terminal.
func privilegeSummary(action, actor string) string {
return fmt.Sprintf("%s requires %s.", capitalize(action), actor)
}
// unidentifiedSummary covers a control channel that carries no caller identity.
// Elevating does not help there, so it points at the daemon's socket instead.
func unidentifiedSummary(action string) string {
return fmt.Sprintf("%s requires %s, and the daemon cannot verify who is calling over its current socket. "+
"Reinstall the service on a socket that carries the caller's identity.", capitalize(action), ipcauth.PrivilegedActor())
}
// reinstallCommand is the command that moves the daemon onto a socket whose
// callers can be identified.
func reinstallCommand() string {
if runtime.GOOS == "windows" {
return fmt.Sprintf("netbird service install --daemon-addr %s", daemonaddr.WindowsPipeAddr)
}
return "sudo netbird service install --daemon-addr unix:///var/run/netbird.sock"
}
func capitalize(s string) string {
if s == "" {
return s
}
return strings.ToUpper(s[:1]) + s[1:]
}
// enables reports whether requested turns a flag on that is currently off. A
// request that restates the stored value, or turns the flag off, is not a
// privileged change.
func enables(stored, requested *bool) bool {
if requested == nil || !*requested {
return false
}
return stored == nil || !*stored
}
// storedFlag reads a flag from the stored config, tolerating a config that does
// not exist yet.
func storedFlag(cfg *profilemanager.Config, get func(*profilemanager.Config) *bool) *bool {
if cfg == nil {
return nil
}
return get(cfg)
}
// sshServerEnabled reports whether the profile currently runs the SSH server.
//
// A nil flag means ON, matching what the engine does with the same config
// (util.ReturnBoolWithDefaultTrue in internal/connect.go, kept for configs written
// before the flag existed). Reading it as OFF here would open the management-URL
// and deregistration guards on exactly those legacy hosts, whose SSH server is
// running. Configs loaded through profilemanager have already been materialised by
// apply(), so this is the same answer by a route that does not depend on that.
func sshServerEnabled(cfg *profilemanager.Config) bool {
if cfg == nil {
return false
}
return util.ReturnBoolWithDefaultTrue(cfg.ServerSSHAllowed)
}
// sshServerCurrentlyAllowed is the value an enable request is compared against. It
// shares sshServerEnabled's nil-means-on default, so restating "on" for a legacy
// config is correctly seen as no change.
func sshServerCurrentlyAllowed(cfg *profilemanager.Config) *bool {
enabled := sshServerEnabled(cfg)
if cfg == nil {
return nil
}
return &enabled
}
// sameManagementURL reports whether requested addresses the same management
// server as stored, comparing scheme, host and effective port so that an
// equivalent spelling ("https://api.netbird.io" for a stored
// "https://api.netbird.io:443") is not treated as a change. It fails closed:
// anything unparseable counts as a change and therefore needs privilege.
func sameManagementURL(stored *url.URL, requested string) bool {
if stored == nil {
return false
}
// Normalise the requested URL through the config layer's own parser, so the
// comparison cannot drift from how the value would actually be stored.
parsed, err := profilemanager.ParseServiceURL("Management URL", requested)
if err != nil {
return false
}
return stored.Scheme == parsed.Scheme &&
stored.Hostname() == parsed.Hostname() &&
effectivePort(stored) == effectivePort(parsed)
}
func effectivePort(u *url.URL) string {
if port := u.Port(); port != "" {
return port
}
switch u.Scheme {
case "https":
return "443"
case "http":
return "80"
default:
return ""
}
}

View File

@@ -0,0 +1,348 @@
package server
import (
"context"
"net/url"
"os"
"runtime"
"strings"
"testing"
"google.golang.org/genproto/googleapis/rpc/errdetails"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/peer"
gstatus "google.golang.org/grpc/status"
"github.com/netbirdio/netbird/client/internal/ipcauth"
"github.com/netbirdio/netbird/client/internal/profilemanager"
)
// ctxWithIdentity builds a request context carrying the identity the transport
// credentials would have attached.
func ctxWithIdentity(id ipcauth.Identity) context.Context {
return peer.NewContext(context.Background(), &peer.Peer{
AuthInfo: ipcauth.AuthInfo{
CommonAuthInfo: credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity},
Identity: id,
},
})
}
// unprivUID is deliberately not this process's own uid. An unprivileged daemon
// treats a caller sharing its identity as privileged (rootless containers), and
// the test binary would otherwise stand in for both the daemon and the caller.
// os.Geteuid returns -1 on Windows, where identities are SIDs instead and this is
// unused.
var unprivUID = uint32(os.Geteuid() + 1)
// The fabricated identities have to be shaped like the platform's: a uid says
// nothing on Windows, and a zero uid there would read as root and be privileged.
func rootCtx() context.Context { return ctxWithIdentity(privilegedIdentity()) }
func userCtx() context.Context { return ctxWithIdentity(unprivilegedIdentity()) }
func privilegedIdentity() ipcauth.Identity {
if runtime.GOOS == "windows" {
// LocalSystem, which is what the Windows service account is.
return ipcauth.Identity{SID: "S-1-5-18"}
}
return ipcauth.Identity{UID: 0}
}
func unprivilegedIdentity() ipcauth.Identity {
if runtime.GOOS == "windows" {
// A plain user SID: no groups, so no BUILTIN\Administrators, and not
// elevated.
return ipcauth.Identity{SID: "S-1-5-21-1-2-3-1001"}
}
return ipcauth.Identity{UID: unprivUID, GID: unprivUID}
}
func noIdentityCtx() context.Context { return context.Background() }
func boolPtr(v bool) *bool { return &v }
func mustURL(t *testing.T, raw string) *url.URL {
t.Helper()
u, err := url.Parse(raw)
if err != nil {
t.Fatalf("parse %q: %v", raw, err)
}
return u
}
func assertDenied(t *testing.T, err error) {
t.Helper()
if err == nil {
t.Fatal("expected the change to be refused, got nil")
}
st := gstatus.Convert(err)
if st.Code() != codes.PermissionDenied {
t.Fatalf("code = %v, want PermissionDenied", st.Code())
}
// The refusal must be machine-readable: the CLI and the UI render the
// summary and command from the detail rather than parsing the message.
var info *errdetails.ErrorInfo
for _, d := range st.Details() {
if got, ok := d.(*errdetails.ErrorInfo); ok {
info = got
}
}
if info == nil {
t.Fatal("refusal carries no ErrorInfo detail")
}
if info.GetReason() != ipcauth.ErrorReasonPrivilegeRequired || info.GetDomain() != ipcauth.ErrorDomain {
t.Fatalf("detail = %s/%s, want %s/%s", info.GetDomain(), info.GetReason(), ipcauth.ErrorDomain, ipcauth.ErrorReasonPrivilegeRequired)
}
if info.GetMetadata()[ipcauth.ErrorMetaSummary] == "" {
t.Error("detail carries no summary")
}
if info.GetMetadata()[ipcauth.ErrorMetaCommand] == "" {
t.Error("detail carries no command")
}
}
func assertAllowed(t *testing.T, err error) {
t.Helper()
if err != nil {
t.Fatalf("expected the change to be allowed, got %v", err)
}
}
func TestRequirePrivilegeForConfigChange_SSHFlags(t *testing.T) {
tests := []struct {
name string
stored *profilemanager.Config
change privilegedConfigChange
privileged bool
wantDeny bool
}{
{
name: "enabling the ssh server unprivileged is refused",
stored: &profilemanager.Config{ServerSSHAllowed: boolPtr(false)},
change: privilegedConfigChange{serverSSHAllowed: boolPtr(true)},
wantDeny: true,
},
{
name: "enabling the ssh server as root is allowed",
stored: &profilemanager.Config{ServerSSHAllowed: boolPtr(false)},
change: privilegedConfigChange{serverSSHAllowed: boolPtr(true)},
privileged: true,
},
{
name: "restating an already enabled ssh server is not a change",
stored: &profilemanager.Config{ServerSSHAllowed: boolPtr(true)},
change: privilegedConfigChange{serverSSHAllowed: boolPtr(true)},
},
{
name: "turning the ssh server off is not guarded",
stored: &profilemanager.Config{ServerSSHAllowed: boolPtr(true)},
change: privilegedConfigChange{serverSSHAllowed: boolPtr(false)},
},
{
name: "a profile with no config yet counts as off, so enabling is refused",
stored: nil,
change: privilegedConfigChange{serverSSHAllowed: boolPtr(true)},
wantDeny: true,
},
{
name: "enabling ssh root login unprivileged is refused",
stored: &profilemanager.Config{EnableSSHRoot: boolPtr(false)},
change: privilegedConfigChange{enableSSHRoot: boolPtr(true)},
wantDeny: true,
},
{
name: "restating ssh root login is not a change",
stored: &profilemanager.Config{EnableSSHRoot: boolPtr(true)},
change: privilegedConfigChange{enableSSHRoot: boolPtr(true)},
},
{
name: "turning ssh root login off is not guarded",
stored: &profilemanager.Config{EnableSSHRoot: boolPtr(true)},
change: privilegedConfigChange{enableSSHRoot: boolPtr(false)},
},
{
name: "disabling ssh authentication unprivileged is refused",
stored: &profilemanager.Config{DisableSSHAuth: boolPtr(false)},
change: privilegedConfigChange{disableSSHAuth: boolPtr(true)},
wantDeny: true,
},
{
name: "re-enabling ssh authentication is not guarded",
stored: &profilemanager.Config{DisableSSHAuth: boolPtr(true)},
change: privilegedConfigChange{disableSSHAuth: boolPtr(false)},
},
{
name: "a request that touches none of the guarded fields is allowed",
stored: &profilemanager.Config{ServerSSHAllowed: boolPtr(false)},
change: privilegedConfigChange{},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ctx := userCtx()
if tt.privileged {
ctx = rootCtx()
}
err := requirePrivilegeForConfigChange(ctx, tt.stored, tt.change)
if tt.wantDeny {
assertDenied(t, err)
return
}
assertAllowed(t, err)
})
}
}
func TestRequirePrivilegeForConfigChange_ManagementURL(t *testing.T) {
sshOn := func(raw string) *profilemanager.Config {
return &profilemanager.Config{ServerSSHAllowed: boolPtr(true), ManagementURL: mustURL(t, raw)}
}
sshOff := func(raw string) *profilemanager.Config {
return &profilemanager.Config{ServerSSHAllowed: boolPtr(false), ManagementURL: mustURL(t, raw)}
}
tests := []struct {
name string
stored *profilemanager.Config
requested string
privileged bool
wantDeny bool
}{
{
name: "moving the binding while ssh is enabled is refused",
stored: sshOn("https://api.netbird.io:443"),
requested: "https://attacker.example.com:443",
wantDeny: true,
},
{
name: "moving the binding as root is allowed",
stored: sshOn("https://api.netbird.io:443"),
requested: "https://selfhosted.example.com:443",
privileged: true,
},
{
name: "the same url restated is not a change",
stored: sshOn("https://api.netbird.io:443"),
requested: "https://api.netbird.io:443",
},
{
name: "an equivalent spelling of the same url is not a change",
stored: sshOn("https://api.netbird.io:443"),
requested: "https://api.netbird.io",
},
{
name: "an equivalent spelling with an explicit http port is not a change",
stored: sshOn("http://mgmt.internal:80"),
requested: "http://mgmt.internal",
},
{
name: "a different port on the same host is a change",
stored: sshOn("https://api.netbird.io:443"),
requested: "https://api.netbird.io:8443",
wantDeny: true,
},
{
name: "a different scheme on the same host is a change",
stored: sshOn("https://mgmt.internal:443"),
requested: "http://mgmt.internal:443",
wantDeny: true,
},
{
name: "with ssh disabled the binding is not guarded at all",
stored: sshOff("https://api.netbird.io:443"),
requested: "https://attacker.example.com:443",
},
{
name: "an unparseable url fails closed",
stored: sshOn("https://api.netbird.io:443"),
requested: "ht tp://%zz",
wantDeny: true,
},
{
name: "an empty url leaves the binding alone",
stored: sshOn("https://api.netbird.io:443"),
requested: "",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ctx := userCtx()
if tt.privileged {
ctx = rootCtx()
}
err := requirePrivilegeForConfigChange(ctx, tt.stored, privilegedConfigChange{managementURL: tt.requested})
if tt.wantDeny {
assertDenied(t, err)
return
}
assertAllowed(t, err)
})
}
}
// A caller the daemon cannot identify must be refused, not trusted: that is the
// state on a TCP daemon socket, where no peer credentials exist.
func TestRequirePrivilegeForConfigChange_UnidentifiedCallerIsRefused(t *testing.T) {
err := requirePrivilegeForConfigChange(noIdentityCtx(),
&profilemanager.Config{ServerSSHAllowed: boolPtr(false)},
privilegedConfigChange{serverSSHAllowed: boolPtr(true)})
assertDenied(t, err)
// The guidance must point at the socket rather than at sudo, since elevating
// would not help.
st := gstatus.Convert(err)
if !strings.Contains(st.Message(), "service install") {
t.Errorf("message %q does not tell the operator how to fix the socket", st.Message())
}
}
func TestRequirePrivilegeForDeregistration(t *testing.T) {
tests := []struct {
name string
cfg *profilemanager.Config
privileged bool
wantDeny bool
}{
{
name: "deregistering while ssh is enabled is refused",
cfg: &profilemanager.Config{ServerSSHAllowed: boolPtr(true)},
wantDeny: true,
},
{
name: "deregistering while ssh is enabled is allowed for root",
cfg: &profilemanager.Config{ServerSSHAllowed: boolPtr(true)},
privileged: true,
},
{
name: "deregistering with ssh disabled is not guarded",
cfg: &profilemanager.Config{ServerSSHAllowed: boolPtr(false)},
},
{
name: "deregistering a profile with no config is not guarded",
cfg: nil,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ctx := userCtx()
if tt.privileged {
ctx = rootCtx()
}
err := requirePrivilegeForDeregistration(ctx, tt.cfg)
if tt.wantDeny {
assertDenied(t, err)
return
}
assertAllowed(t, err)
})
}
}
// privilegedTestCtx is the context a handler-level test should use when it is
// standing in for a root/administrator caller. Tests that drive the handlers
// directly have no transport credentials, and the privileged-change gate refuses
// a caller it cannot identify.
func privilegedTestCtx() context.Context { return rootCtx() }

View File

@@ -9,7 +9,6 @@ import (
"path/filepath"
"runtime"
"strconv"
"strings"
"time"
log "github.com/sirupsen/logrus"
@@ -17,7 +16,6 @@ import (
"golang.org/x/crypto/ssh/knownhosts"
"golang.org/x/term"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/profilemanager"
@@ -32,7 +30,7 @@ const (
// DefaultDaemonAddr is the default address for the NetBird daemon
DefaultDaemonAddr = "unix:///var/run/netbird.sock"
// DefaultDaemonAddrWindows is the default address for the NetBird daemon on Windows
DefaultDaemonAddrWindows = "tcp://127.0.0.1:41731"
DefaultDaemonAddrWindows = daemonaddr.WindowsPipeAddr
)
// Client wraps crypto/ssh Client for simplified SSH operations
@@ -268,7 +266,7 @@ func getDefaultDaemonAddr() string {
return addr
}
if runtime.GOOS == "windows" {
return DefaultDaemonAddrWindows
return daemonaddr.ResolveDaemonAddr(DefaultDaemonAddrWindows)
}
return daemonaddr.ResolveUnixDaemonAddr(DefaultDaemonAddr)
}
@@ -410,12 +408,9 @@ func verifyHostKeyViaDaemon(hostname string, remote net.Addr, key ssh.PublicKey,
}
func connectToDaemon(daemonAddr string) (*grpc.ClientConn, error) {
addr := strings.TrimPrefix(daemonAddr, "tcp://")
target, opts := daemonaddr.DialTarget(daemonAddr)
conn, err := grpc.NewClient(
addr,
grpc.WithTransportCredentials(insecure.NewCredentials()),
)
conn, err := grpc.NewClient(target, opts...)
if err != nil {
log.Debugf("failed to create gRPC client for NetBird daemon at %s: %v", daemonAddr, err)
return nil, fmt.Errorf("failed to connect to NetBird daemon: %w", err)

View File

@@ -9,7 +9,6 @@ import (
"net"
"os"
"strconv"
"strings"
"sync"
"time"
@@ -17,8 +16,8 @@ import (
log "github.com/sirupsen/logrus"
cryptossh "golang.org/x/crypto/ssh"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/profilemanager"
"github.com/netbirdio/netbird/client/proto"
nbssh "github.com/netbirdio/netbird/client/ssh"
@@ -55,8 +54,8 @@ type SSHProxy struct {
}
func New(daemonAddr, targetHost string, targetPort int, stderr io.Writer, browserOpener func(string) error) (*SSHProxy, error) {
grpcAddr := strings.TrimPrefix(daemonAddr, "tcp://")
grpcConn, err := grpc.NewClient(grpcAddr, grpc.WithTransportCredentials(insecure.NewCredentials()))
target, opts := daemonaddr.DialTarget(daemonAddr)
grpcConn, err := grpc.NewClient(target, opts...)
if err != nil {
return nil, fmt.Errorf("connect to daemon: %w", err)
}

View File

@@ -18,6 +18,9 @@ type CopyToClipboardProps = {
className?: string;
iconClassName?: string;
alwaysShowIcon?: boolean;
// wrap lets long content (a shell command, a path) break across lines
// instead of being truncated to one line.
wrap?: boolean;
variant?: CopyToClipboardVariant;
"aria-label"?: string;
tabIndex?: number;
@@ -32,6 +35,7 @@ export const CopyToClipboard = ({
className,
iconClassName,
alwaysShowIcon = false,
wrap = false,
variant = "default",
"aria-label": ariaLabel,
tabIndex = 0,
@@ -83,7 +87,8 @@ export const CopyToClipboard = ({
>
<span
className={cn(
"relative min-w-0 truncate",
"relative min-w-0",
wrap ? "whitespace-pre-wrap break-all" : "truncate",
"[&_*]:transition-colors",
VARIANT_HOVER[variant],
)}

View File

@@ -14,7 +14,7 @@ import type { Config } from "@bindings/services/models.js";
import i18next from "@/lib/i18n";
import { useProfile } from "@/contexts/ProfileContext.tsx";
import { SettingsSkeleton } from "@/modules/settings/SettingsSkeleton.tsx";
import { errorDialog, formatErrorMessage as errorMessage } from "@/lib/errors.ts";
import { errorCommand, errorDialog, formatErrorMessage as errorMessage } from "@/lib/errors.ts";
const SAVE_DEBOUNCE_MS = 400;
@@ -68,6 +68,21 @@ const useSettingsState = () => {
loadedRef.current = loaded;
}, [loaded]);
// reload re-reads the daemon's config, which is authoritative. Used on
// mount, on the daemon's config_changed event, and to undo an optimistic
// update the daemon then rejected.
const reload = useCallback(
async (profileName: string) => {
try {
const data = await SettingsSvc.GetConfig({ profileName, username });
setLoaded({ profileName, data });
} catch (e) {
console.warn("[SettingsContext] reload after rejected save failed", e);
}
},
[username],
);
useEffect(() => {
if (!profileLoaded || !activeProfileId) return;
let cancelled = false;
@@ -133,13 +148,20 @@ const useSettingsState = () => {
username,
});
} catch (e) {
// The optimistic update is wrong now: the daemon refused it
// (a change that needs elevated privileges, an MDM-managed
// field, ...). Snap the controls back to what it actually
// holds before reporting, so the UI never shows a value the
// daemon does not have.
await reload(profileName);
await errorDialog({
Title: i18next.t("settings.error.saveTitle"),
Message: errorMessage(e),
Command: errorCommand(e),
});
}
},
[username],
[username, reload],
);
const setField = useCallback(

View File

@@ -0,0 +1,32 @@
import { useEffect, useState } from "react";
import { Settings as SettingsSvc } from "@bindings/services";
import { Privilege } from "@bindings/services/models.js";
// usePrivilege reports whether this UI process may perform the changes the daemon
// restricts to root/administrator. It is answered in-process from our own token
// with the daemon's own rule, so there is no round-trip and it works while the
// daemon is down.
//
// null means "not known yet", which includes the read having failed. Callers must
// treat that as "do not restrict": the daemon enforces this regardless, so the
// only thing a wrong guess here costs is a control that looks unavailable when it
// is not, or a save that fails with the daemon's own guidance.
export const usePrivilege = (): Privilege | null => {
const [privilege, setPrivilege] = useState<Privilege | null>(null);
useEffect(() => {
let cancelled = false;
SettingsSvc.Privilege()
.then((p) => {
if (!cancelled) setPrivilege(p);
})
.catch((e: unknown) => {
console.warn("[usePrivilege] read failed, not restricting controls", e);
});
return () => {
cancelled = true;
};
}, []);
return privilege;
};

View File

@@ -1,6 +1,6 @@
import { WindowManager } from "@bindings/services";
type ClassifiedError = { short: string; long: string };
type ClassifiedError = { short: string; long: string; command: string };
const asObject = (v: unknown): Record<string, unknown> | null =>
v && typeof v === "object" ? (v as Record<string, unknown>) : null;
@@ -22,20 +22,24 @@ const toWailsEnvelope = (e: unknown): Record<string, unknown> | null => {
return asObject(obj.cause) ?? parseJsonObject(obj.message);
};
// Read { short, long } from wherever the classified error sits in the envelope
// Read { short, long, command } from wherever the classified error sits in the envelope
const toClassifiedError = (v: unknown): ClassifiedError | null => {
const o = asObject(v);
if (!o) return null;
const short = typeof o.short === "string" ? o.short : "";
const long = typeof o.long === "string" ? o.long : "";
return short || long ? { short, long } : null;
const command = typeof o.command === "string" ? o.command : "";
return short || long ? { short, long, command } : null;
};
const classify = (e: unknown): ClassifiedError | null => {
const envelope = toWailsEnvelope(e);
return toClassifiedError(envelope?.cause) ?? toClassifiedError(envelope);
};
export const formatErrorMessage = (e: unknown): string => {
const envelope = toWailsEnvelope(e);
// Prefer the structured { short, long } the daemon classifier produced.
const classified = toClassifiedError(envelope?.cause) ?? toClassifiedError(envelope);
const classified = classify(e);
if (classified) {
const { short, long } = classified;
if (short && long && long !== short) return `${short} Details: ${long}`;
@@ -44,17 +48,26 @@ export const formatErrorMessage = (e: unknown): string => {
}
// Unclassified (a service returned the raw daemon error)
const envelope = toWailsEnvelope(e);
const message = envelope?.message;
if (typeof message === "string" && message) return message;
if (e instanceof Error) return e.message;
return String(e);
};
// errorCommand returns a command the user can run to complete an operation the
// daemon refused, when the error carries one (a change that needs elevated
// privileges). Empty for every other error.
export const errorCommand = (e: unknown): string => classify(e)?.command ?? "";
export type ErrorDialogOptions = {
Title: string;
Message: string;
// Command is shown for copying below the message. Defaults to the one the
// error carries, so callers only pass it to override.
Command?: string;
};
export function errorDialog(options: ErrorDialogOptions): Promise<void> {
return WindowManager.OpenError(options.Title, options.Message);
return WindowManager.OpenError(options.Title, options.Message, options.Command ?? "");
}

View File

@@ -2,6 +2,7 @@ import { type ReactNode } from "react";
import { useTranslation } from "react-i18next";
import { Browser } from "@wailsio/runtime";
import { DownloadIcon, NotepadText } from "lucide-react";
import { Update as UpdateSvc } from "@bindings/services";
import { Button } from "@/components/buttons/Button";
import { useClientVersion } from "@/contexts/ClientVersionContext";
import { cn } from "@/lib/cn";
@@ -14,6 +15,12 @@ function openUrl(url: string) {
});
}
function openInstallerDownload() {
UpdateSvc.DownloadURL()
.then(openUrl)
.catch(() => openUrl(GITHUB_RELEASES));
}
export function UpdateVersionCard() {
const { t } = useTranslation();
const { updateVersion, enforced, triggerUpdate } = useClientVersion();
@@ -37,11 +44,7 @@ export function UpdateVersionCard() {
{t("update.card.installNow")}
</Button>
) : (
<Button
variant={"primary"}
size={"xs"}
onClick={() => openUrl(GITHUB_RELEASES)}
>
<Button variant={"primary"} size={"xs"} onClick={openInstallerDownload}>
<DownloadIcon size={14} />
{t("update.card.getInstaller")}
</Button>

View File

@@ -3,6 +3,7 @@ import { useTranslation } from "react-i18next";
import { useSearchParams } from "react-router-dom";
import { AlertCircleIcon } from "lucide-react";
import { Button } from "@/components/buttons/Button";
import { CopyToClipboard } from "@/components/CopyToClipboard";
import { ConfirmDialog } from "@/components/dialog/ConfirmDialog";
import { DialogActions } from "@/components/dialog/DialogActions";
import { DialogDescription } from "@/components/dialog/DialogDescription";
@@ -12,14 +13,22 @@ import { WindowManager } from "@bindings/services";
import { useAutoSizeWindow } from "@/hooks/useAutoSizeWindow";
const WINDOW_WIDTH = 380;
// A command needs the room to wrap at a sensible number of characters instead of
// breaking every few words.
const WINDOW_WIDTH_WITH_COMMAND = 460;
export default function ErrorDialog() {
const { t } = useTranslation();
const contentRef = useAutoSizeWindow<HTMLDivElement>(WINDOW_WIDTH);
const [params] = useSearchParams();
const title = params.get("title") || t("window.title.error");
const message = params.get("message") || "";
// Set when the daemon refused an operation that needs elevated privileges:
// the command that performs it, offered for copying.
const command = params.get("command") || "";
const contentRef = useAutoSizeWindow<HTMLDivElement>(
command ? WINDOW_WIDTH_WITH_COMMAND : WINDOW_WIDTH,
);
const close = useCallback(() => {
WindowManager.CloseError().catch(console.error);
@@ -37,15 +46,37 @@ export default function ErrorDialog() {
<ConfirmDialog ref={contentRef} aria-labelledby={"nb-error-dialog-title"}>
<SquareIcon icon={AlertCircleIcon} variant={"danger"} />
<div className={"flex flex-col items-center gap-1"}>
<div className={"flex w-full flex-col items-center gap-1"}>
<DialogHeading id={"nb-error-dialog-title"} className={"text-balance"}>
{title}
</DialogHeading>
{message && (
<DialogDescription className={"text-balance"}>
<span className={"whitespace-pre-wrap break-words"}>{message}</span>
{/* select-text: the message often names a path, a flag or an
address the user needs to act on. */}
<span className={"select-text whitespace-pre-wrap break-words"}>
{message}
</span>
</DialogDescription>
)}
{command && (
<CopyToClipboard
message={command}
alwaysShowIcon
wrap
variant={"bright"}
className={
"mt-2 w-full items-start gap-2 rounded-md bg-nb-gray-930 px-3 py-2 text-left"
}
aria-label={t("common.copy")}
>
<code
className={"select-text break-all font-mono text-xs text-nb-gray-200"}
>
{command}
</code>
</CopyToClipboard>
)}
</div>
<DialogActions>

View File

@@ -1,4 +1,5 @@
import { useTranslation } from "react-i18next";
import { CopyToClipboard } from "@/components/CopyToClipboard";
import FancyToggleSwitch from "@/components/switches/FancyToggleSwitch";
import { HelpText } from "@/components/typography/HelpText";
import { Input } from "@/components/inputs/Input";
@@ -6,12 +7,50 @@ import { Label } from "@/components/typography/Label";
import { cn } from "@/lib/cn";
import { SectionGroup } from "@/modules/settings/SettingsSection.tsx";
import { useSettings } from "@/contexts/SettingsContext.tsx";
import { type ChangeEvent, useEffect, useId, useState } from "react";
import { usePrivilege } from "@/hooks/usePrivilege.ts";
import { Privilege } from "@bindings/services/models.js";
import { type ChangeEvent, type ReactNode, useEffect, useId, useState } from "react";
export function SettingsSSH() {
const { t } = useTranslation();
const { config, setField } = useSettings();
const privilege = usePrivilege();
const isSSHServerEnabled = config.serverSshAllowed;
// The daemon restricts only the direction that hands out shells from a process
// running as root. So for an unprivileged user a guarded control is either
// unavailable (it is off and only they could turn it on) or a one-way switch
// (it is on, they may turn it off, but not back on) — say which, either way.
//
// A null privilege means we could not determine it: leave the control alone
// rather than greying it out with nothing to explain why. The daemon enforces
// this regardless, and a rejected save reports its own guidance.
const guarded = (
guardedDirectionActive: boolean,
command: (p: Privilege) => string,
// inverted marks a control whose guarded direction is switching it off, so
// the one-way warning has to read the other way round.
inverted = false,
) => {
if (!privilege || privilege.privileged) {
return { disabled: false, hint: undefined };
}
const hint = (
<PrivilegeHint
actor={privilege.actor}
command={command(privilege)}
oneWay={guardedDirectionActive}
inverted={inverted}
/>
);
return { disabled: !guardedDirectionActive, hint };
};
const sshServer = guarded(config.serverSshAllowed, (p) => p.allowSshServer);
const sshRoot = guarded(config.enableSshRoot, (p) => p.enableSshRoot);
// Inverted control: the guarded direction is switching authentication off, so
// it is the already-disabled state that is the one-way one.
const sshAuth = guarded(config.disableSshAuth, (p) => p.disableSshAuth, true);
const jwtTtlId = useId();
const [jwtTtlInput, setJwtTtlInput] = useState(String(config.sshJwtCacheTtl));
@@ -46,9 +85,11 @@ export function SettingsSSH() {
<FancyToggleSwitch
value={config.serverSshAllowed}
onChange={(v) => setField("serverSshAllowed", v)}
disabled={sshServer.disabled}
label={t("settings.ssh.server.label")}
helpText={t("settings.ssh.server.help")}
/>
{sshServer.hint}
</SectionGroup>
<SectionGroup
@@ -58,9 +99,11 @@ export function SettingsSSH() {
<FancyToggleSwitch
value={config.enableSshRoot}
onChange={(v) => setField("enableSshRoot", v)}
disabled={sshRoot.disabled}
label={t("settings.ssh.root.label")}
helpText={t("settings.ssh.root.help")}
/>
{sshRoot.hint}
<FancyToggleSwitch
value={config.enableSshSftp}
onChange={(v) => setField("enableSshSftp", v)}
@@ -88,9 +131,11 @@ export function SettingsSSH() {
<FancyToggleSwitch
value={!config.disableSshAuth}
onChange={(v) => setField("disableSshAuth", !v)}
disabled={sshAuth.disabled}
label={t("settings.ssh.jwt.label")}
helpText={t("settings.ssh.jwt.help")}
/>
{sshAuth.hint}
<div
className={cn(
"flex items-center justify-between gap-6",
@@ -117,3 +162,42 @@ export function SettingsSSH() {
</>
);
}
// PrivilegeHint explains what an unprivileged user can and cannot do with a
// guarded control, and offers the command that does it with the privileges the
// daemon requires. oneWay covers the control being in the guarded state already:
// switching it back is the part that needs privileges.
function PrivilegeHint({
actor,
command,
oneWay,
inverted,
}: {
actor: string;
command: string;
oneWay: boolean;
inverted: boolean;
}): ReactNode {
const { t } = useTranslation();
if (!command) return null;
return (
<div
className={
"-mt-2 flex flex-col gap-1 rounded-md bg-nb-gray-930 px-3 py-2 text-xs text-nb-gray-300"
}
>
<span>
{!oneWay
? t("settings.ssh.privilege.hint", { actor })
: inverted
? t("settings.ssh.privilege.oneWayInverted", { actor })
: t("settings.ssh.privilege.oneWay", { actor })}
</span>
<CopyToClipboard message={command} alwaysShowIcon wrap variant={"bright"}>
<code className={"select-text break-all font-mono text-xs text-nb-gray-200"}>
{command}
</code>
</CopyToClipboard>
</div>
);
}

View File

@@ -5,14 +5,13 @@ package main
import (
"fmt"
"runtime"
"strings"
"sync"
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/credentials/insecure"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/proto"
"github.com/netbirdio/netbird/client/ui/desktop"
)
@@ -36,9 +35,10 @@ func (c *Conn) Client() (proto.DaemonServiceClient, error) {
return c.client, nil
}
cc, err := grpc.NewClient(
strings.TrimPrefix(c.addr, "tcp://"),
grpc.WithTransportCredentials(insecure.NewCredentials()),
// Lazy on purpose: grpc.NewClient does not connect here, so a daemon that
// is down surfaces as a per-RPC Unavailable instead of blocking the UI.
target, opts := daemonaddr.DialTarget(daemonaddr.ResolveDaemonAddr(c.addr))
opts = append(opts,
grpc.WithUserAgent(desktop.GetUIUserAgent()),
// Cap reconnect backoff at 5s; gRPC's default 120s MaxDelay would
// leave the UI waiting 30-60s to notice a freshly-started daemon.
@@ -51,6 +51,8 @@ func (c *Conn) Client() (proto.DaemonServiceClient, error) {
},
}),
)
cc, err := grpc.NewClient(target, opts...)
if err != nil {
return nil, fmt.Errorf("dial daemon: %w", err)
}
@@ -58,10 +60,12 @@ func (c *Conn) Client() (proto.DaemonServiceClient, error) {
return c.client, nil
}
// DaemonAddr returns the default daemon gRPC address: a Unix socket on Linux/macOS, TCP loopback on Windows.
// DaemonAddr returns the default daemon gRPC address: a Unix socket on
// Linux/macOS, a named pipe on Windows. The pipe carries the caller's token,
// which loopback TCP does not, so the daemon can tell who is calling.
func DaemonAddr() string {
if runtime.GOOS == "windows" {
return "tcp://127.0.0.1:41731"
return daemonaddr.WindowsPipeAddr
}
return "unix:///var/run/netbird.sock"
}

View File

@@ -1774,5 +1774,17 @@
"error.unknown": {
"message": "Operation failed.",
"description": "Generic fallback error message used when no specific error applies."
},
"settings.ssh.privilege.hint": {
"message": "Requires {actor}. Run this instead:",
"description": "Help text under an SSH setting the user cannot change: it needs elevated privileges. {actor} is 'root' on Linux/macOS or 'administrator privileges' on Windows. Followed by a copyable command."
},
"settings.ssh.privilege.oneWay": {
"message": "You can switch this off, but switching it back on needs {actor}:",
"description": "Warning under an SSH setting an unprivileged user may disable but not re-enable. {actor} is 'root' on Linux/macOS or 'administrator privileges' on Windows. Followed by a copyable command."
},
"settings.ssh.privilege.oneWayInverted": {
"message": "You can switch this on, but switching it back off needs {actor}:",
"description": "Warning under the SSH authentication setting, which an unprivileged user may re-enable but not disable again. {actor} is 'root' on Linux/macOS or 'administrator privileges' on Windows. Followed by a copyable command."
}
}

View File

@@ -96,7 +96,6 @@ func main() {
}
})
settings := services.NewSettings(conn)
profiles := services.NewProfiles(conn)
// updater.Holder owns the typed update State; DaemonFeed feeds it and the
// Update service is a thin Wails-bound facade over it plus the install RPCs.
@@ -117,6 +116,7 @@ func main() {
bundle, prefStore, localizer := buildI18n(app)
// After bundle + prefStore: both are used to localise daemon errors.
settings := services.NewSettings(conn, bundle, prefStore, daemonAddr)
connection := services.NewConnection(conn, bundle, prefStore)
profileSwitcher := services.NewProfileSwitcher(profiles, connection, daemonFeed)
// authsession.Session owns the full extend + dismiss surface the tray
@@ -281,6 +281,9 @@ func newApplication(onSecondInstance func()) *application.App {
Linux: application.LinuxOptions{
ProgramName: "netbird",
},
Windows: application.WindowsOptions{
WndProcInterceptor: endSessionInterceptor(),
},
SingleInstance: &application.SingleInstanceOptions{
UniqueID: "io.netbird.ui",
OnSecondInstanceLaunch: func(_ application.SecondInstanceData) {
@@ -367,6 +370,9 @@ func newMainWindow(app *application.App, prefStore *preferences.Store) *applicat
// Hide instead of quit on close; "really quit" is reached via tray -> Quit.
window.RegisterHook(events.Common.WindowClosing, func(e *application.WindowEvent) {
if services.ShuttingDown() {
return
}
e.Cancel()
window.Hide()
})

View File

@@ -6,13 +6,30 @@ import (
"encoding/json"
"strings"
"google.golang.org/genproto/googleapis/rpc/errdetails"
gcodes "google.golang.org/grpc/codes"
gstatus "google.golang.org/grpc/status"
"github.com/netbirdio/netbird/client/internal/ipcauth"
"github.com/netbirdio/netbird/client/ui/i18n"
"github.com/netbirdio/netbird/client/ui/preferences"
)
// privilegeErrorInfo returns the daemon's privilege-refusal detail, if the error
// carries one.
func privilegeErrorInfo(err error) (*errdetails.ErrorInfo, bool) {
for _, detail := range gstatus.Convert(err).Details() {
info, ok := detail.(*errdetails.ErrorInfo)
if !ok {
continue
}
if info.GetReason() == ipcauth.ErrorReasonPrivilegeRequired && info.GetDomain() == ipcauth.ErrorDomain {
return info, true
}
}
return nil, false
}
// ErrorTranslator localises daemon errors; runtime impl is *i18n.Bundle.
type ErrorTranslator interface {
Translate(lang i18n.LanguageCode, key string, args ...string) string
@@ -30,6 +47,10 @@ type ClientError struct {
Code string `json:"code"`
Short string `json:"short"`
Long string `json:"long"`
// Command is a command the user can run to complete the operation
// themselves, set when the daemon refused it for want of privileges. The
// frontend offers it for copying.
Command string `json:"command,omitempty"`
}
// Error returns the short message for plain Go callers.
@@ -72,6 +93,24 @@ func (c errorClassifier) classify(err error) *ClientError {
msg = st.Message()
grpcCode = st.Code()
}
// A refusal for want of privileges carries its own summary and the command
// that performs the operation, both written for the user. Surface them
// verbatim: no substring guessing, and no localisation of a message the
// daemon composed.
if info, ok := privilegeErrorInfo(err); ok {
summary := info.GetMetadata()[ipcauth.ErrorMetaSummary]
if summary == "" {
summary = msg
}
return &ClientError{
Code: "privilege_required",
Short: summary,
Long: summary,
Command: info.GetMetadata()[ipcauth.ErrorMetaCommand],
}
}
lower := strings.ToLower(msg)
code := "unknown"

View File

@@ -7,6 +7,10 @@ import (
"fmt"
"reflect"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/internal/daemonaddr"
"github.com/netbirdio/netbird/client/internal/ipcauth"
"github.com/netbirdio/netbird/client/proto"
)
@@ -39,6 +43,19 @@ type Restrictions struct {
Features Features `json:"features"`
}
// Privilege tells the frontend whether this process may perform the changes the
// daemon restricts to root/administrator, and carries the command for each so a
// disabled control can show the way to do it.
type Privilege struct {
Privileged bool `json:"privileged"`
// Actor names what the operation requires ("root", "administrator privileges").
Actor string `json:"actor"`
// Commands equivalent to the settings the daemon guards, ready to copy.
AllowSSHServer string `json:"allowSshServer"`
EnableSSHRoot string `json:"enableSshRoot"`
DisableSSHAuth string `json:"disableSshAuth"`
}
type ConfigParams struct {
ProfileName string `json:"profileName"`
Username string `json:"username"`
@@ -106,11 +123,19 @@ type SetConfigParams struct {
}
type Settings struct {
conn DaemonConn
conn DaemonConn
classifier errorClassifier
// daemonAddr is where the daemon listens, used to tell whether it runs as
// this user and would therefore authorize us: see Privilege.
daemonAddr string
}
func NewSettings(conn DaemonConn) *Settings {
return &Settings{conn: conn}
func NewSettings(conn DaemonConn, translator ErrorTranslator, prefs LanguagePreference, daemonAddr string) *Settings {
return &Settings{
conn: conn,
classifier: errorClassifier{translator: translator, prefs: prefs},
daemonAddr: daemonAddr,
}
}
func (s *Settings) GetConfig(ctx context.Context, p ConfigParams) (Config, error) {
@@ -189,8 +214,47 @@ func (s *Settings) SetConfig(ctx context.Context, p SetConfigParams) error {
DisableSSHAuth: p.DisableSSHAuth,
SshJWTCacheTTL: p.SSHJWTCacheTTL,
}
_, err = cli.SetConfig(ctx, req)
return err
if _, err := cli.SetConfig(ctx, req); err != nil {
// Classified so the frontend gets the daemon's guidance instead of the
// gRPC envelope, which is what a refused privileged change looks like.
return s.classifier.classify(err)
}
return nil
}
// Privilege reports whether this UI process could carry out the changes the
// daemon restricts to root/administrator, and the command that performs the one
// users hit in the SSH settings. It applies the daemon's own rule to what it can
// see locally, so the frontend can present those controls as unavailable up front
// instead of letting a save fail. No daemon round-trip, so it also works while the
// daemon is down.
//
// Being root or an elevated administrator is one way. The other is running as the
// daemon's own user while the daemon is unprivileged, which the daemon accepts
// because such a caller can already rewrite the config it reads; that is the
// rootless-container and Windows netstack-mode case, and it is read from the
// ownership of the socket or pipe the daemon created.
func (s *Settings) Privilege() Privilege {
id, err := ipcauth.CurrentProcessIdentity()
if err != nil {
// Fail closed: report unprivileged, which only ever disables controls.
log.Warnf("cannot read this process's identity, treating it as unprivileged: %v", err)
return newPrivilege(false)
}
if id.IsPrivileged() {
return newPrivilege(true)
}
return newPrivilege(daemonaddr.DaemonRunsAsSelf(s.daemonAddr))
}
func newPrivilege(privileged bool) Privilege {
return Privilege{
Privileged: privileged,
Actor: ipcauth.PrivilegedActor(),
AllowSSHServer: ipcauth.UpCommand("--allow-server-ssh"),
EnableSSHRoot: ipcauth.UpCommand("--enable-ssh-root"),
DisableSSHAuth: ipcauth.UpCommand("--disable-ssh-auth"),
}
}
func (s *Settings) GetRestrictions(ctx context.Context) (Restrictions, error) {

View File

@@ -0,0 +1,24 @@
package services
import "sync/atomic"
var (
sessionEnding atomic.Bool
quitting atomic.Bool
)
func BeginSessionEnd() {
sessionEnding.Store(true)
}
func AbortSessionEnd() {
sessionEnding.Store(false)
}
func BeginShutdown() {
quitting.Store(true)
}
func ShuttingDown() bool {
return sessionEnding.Load() || quitting.Load()
}

View File

@@ -10,6 +10,7 @@ import (
"github.com/netbirdio/netbird/client/proto"
"github.com/netbirdio/netbird/client/ui/updater"
"github.com/netbirdio/netbird/version"
)
// UpdateResult mirrors TriggerUpdateResponse.
@@ -33,6 +34,12 @@ func (s *Update) GetState() updater.State {
return s.holder.Get()
}
// DownloadURL returns the platform-appropriate installer download link for
// manual (non-enforced) updates.
func (s *Update) DownloadURL() string {
return version.DownloadUrl()
}
// Quit exits the app. Scheduled off the calling goroutine so the JS caller's
// response returns before the runtime tears down.
func (s *Update) Quit() {

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