Commit Graph

22 Commits

Author SHA1 Message Date
Viktor Liu
4ef65294e9 [client] Reinject captured first packet on lazy connection activation (#6572) 2026-06-30 11:22:25 +02:00
Zoltan Papp
2d7b309004 [client] Categorize privileged tests behind a build tag and run them in Docker (#6425)
* [client] categorize root/system-mutating tests behind a privileged build tag

Tests that need root or mutate host state (nftables/iptables/DNS, TUN/WireGuard
interfaces, routes, eBPF, SSH/service install) are now gated behind a
//go:build privileged tag. The default `go test ./client/...` runs as a non-root
user with no sudo and leaves host networking untouched; mixed files were split so
pure-logic tests stay in the default suite.

A self-hosting ory/dockertest/v4 harness (client/testutil/privileged) runs the
privileged suite inside a --privileged --cap-add=NET_ADMIN container via
`make test-privileged`; a DOCKER_CI=true guard skips the spawn when already inside
the container. Added `make test-unit` for the host-safe run.

* [client] add PRIV_RUN/PRIV_PKGS filters to the privileged test harness

The dockertest harness now reads two optional env vars when building the
in-container `go test` command: PRIV_RUN adds a -run test-name filter and
PRIV_PKGS overrides the package list. Both empty reproduce the full privileged
suite, so CI and `make test-privileged` behave as before. Lets a developer run a
single privileged test in the container, e.g.:

  PRIV_RUN=TestNftablesManager PRIV_PKGS=./client/firewall/nftables/... make test-privileged

* [client] fix unused-helper lint after the privileged test split

Splitting privileged tests into *_privileged_test.go left their shared helpers in
the untagged files, so in the default (no-tag) build they had no callers and
golangci-lint flagged them as unused.

Moved the privileged-only helpers into the privileged files next to their callers
(generateDummyHandler; createEngine/startSignal/startManagement/getConnectedPeers/
getPeers + kaep/kasp; (*mockDaemon).setJWTToken). Annotated the shared routing-test
fixtures that must stay untagged for cross-platform compilation with //nolint:unused
(systemops_bsd expected* vars, ensureIPv6DefaultRoute on bsd/windows,
loopbackIfaceWindows), matching the existing linux variant.

* [client] fix privileged test CI failures and run the harness on macOS

The host-safe unit run dropped sudo but two privileged test groups were
never tagged, and the Docker privileged job silently never ran the suite:

- Gate the ssh/server PrivilegeDropper command-construction tests behind
  the privileged tag (they require root to target a different UID); split
  them into executor_unix_privileged_test.go.
- Tag sharedsock raw-socket tests privileged (need CAP_NET_RAW).
- Fix the Docker job command: nested single quotes around the build tags
  closed the sh -c wrapper early, dropping the go list package set and the
  privileged tag, so go test ran on the empty repo root. Use double quotes.

Make the self-hosting harness usable from a dev Mac:

- Build it on darwin as well as linux; it only drives Docker.
- Resolve the active docker context endpoint into DOCKER_HOST when the
  default /var/run/docker.sock is absent (Docker Desktop, Colima, OrbStack).
- Rename the misspelled containerGoModache constant to containerGoModCache.

* Update client/internal/engine_privileged_test.go

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update client/internal/routemanager/systemops/systemops_linux_test.go

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update client/internal/routemanager/systemops/systemops_windows_test.go

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update client/server/server_privileged_test.go

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* [ci] Run privileged-tagged tests on darwin, windows and freebsd

The privileged build tag split moved root/system-mutating tests behind
//go:build privileged, but only the linux docker job was given the tag.
The native darwin (sudo), windows (PsExec64 -s) and freebsd VM runners
already have the required privileges, so add the privileged tag there too
to keep CI running the same set of tests as before the split.

* [ci] Exclude dockertest harness from the darwin privileged run

The privileged tag now compiles client/testutil/privileged on darwin, whose
TestRunPrivilegedSuiteInDocker spawns a container the macOS runner has no
Docker for. Exclude the harness package from the darwin list, matching the
linux job, so the privileged tests run in place without a container spawn.

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
2026-06-28 16:15:54 +02:00
Viktor Liu
b57f714350 [client] Drop signaling-side ICE candidate filter, drop overlay STUN at mux read-side instead (#6142) 2026-06-15 16:37:03 +02:00
Viktor Liu
205ebcfda2 [management, client] Add IPv6 overlay support (#5631) 2026-05-07 11:33:37 +02:00
Zoltan Papp
b55262d4a2 [client] Refactor/optimise raw socket headers (#5174)
Pre-create and reuse packet headers to eliminate per-packet allocations.
2026-01-28 15:06:59 +01:00
Viktor Liu
d4f7df271a [cllient] Don't track ebpf traffic in conntrack (#5166) 2026-01-27 11:04:23 +01:00
Zoltan Papp
05af39a69b [client] Add IPv6 support to UDP WireGuard proxy (#5169)
* Add IPv6 support to UDP WireGuard proxy

Add IPv6 packet header support in UDP raw socket proxy
to handle both IPv4 and IPv6 source addresses.
Refactor error handling in proxy bind implementations
to validate endpoints before acquiring locks.
2026-01-26 14:03:32 +01:00
Viktor Liu
1a32e4c223 [client] Fix IPv4-only in bind proxy (#5154) 2026-01-23 15:15:34 +01:00
Zoltan Papp
12a7fa24d7 Add support for disabling eBPF WireGuard proxy via environment variable (#5047) 2026-01-07 15:34:52 +01:00
Viktor Liu
b5daec3b51 [client,signal,management] Add browser client support (#4415) 2025-10-01 20:10:11 +02:00
Zoltan Papp
e8d301fdc9 [client] Fix/pkg loss (#3338)
The Relayed connection setup is optimistic. It does not have any confirmation of an established end-to-end connection. Peers start sending WireGuard handshake packets immediately after the successful offer-answer handshake.
Meanwhile, for successful P2P connection negotiation, we change the WireGuard endpoint address, but this change does not trigger new handshake initiation. Because the peer switched from Relayed connection to P2P, the packets from the Relay server are dropped and must wait for the next WireGuard handshake via P2P.

To avoid this scenario, the relayed WireGuard proxy no longer drops the packets. Instead, it rewrites the source address to the new P2P endpoint and continues forwarding the packets.

We still have one corner case: if the Relayed server negotiation chooses a server that has not been used before. In this case, one side of the peer connection will be slower to reach the Relay server, and the Relay server will drop the handshake packet.

If everything goes well we should see exactly 5 seconds improvements between the WireGuard configuration time and the handshake time.
2025-09-30 15:31:18 +02:00
Viktor Liu
55126f990c [client] Use native windows sock opts to avoid routing loops (#4314)
- Move `util/grpc` and `util/net` to `client` so `internal` packages can be accessed
 - Add methods to return the next best interface after the NetBird interface.
- Use `IP_UNICAST_IF` sock opt to force the outgoing interface for the NetBird `net.Dialer` and `net.ListenerConfig` to avoid routing loops. The interface is picked by the new route lookup method.
- Some refactoring to avoid import cycles
- Old behavior is available through `NB_USE_LEGACY_ROUTING=true` env var
2025-09-20 09:31:04 +02:00
Viktor Liu
f063866ce8 [client] Add flag to configure MTU (#4213) 2025-08-26 16:00:14 +02:00
Viktor Liu
beb66208a0 [management, client] Add API to change the network range (#4177) 2025-08-04 16:45:49 +02:00
Zoltan Papp
31872a7fb6 [client] Fix UDP proxy to notify listener when remote conn closed (#4199)
* Fix UDP proxy to notify listener when remote conn closed

* Fix sender tests to use t.Errorf for timeout assertions

* Fix potential nil pointer
2025-07-25 14:14:45 +02:00
Krzysztof Nazarewski (kdn)
af8687579b client: container: support CLI with entrypoint addition (#4126)
This will allow running netbird commands (including debugging) against the daemon and provide a flow similar to non-container usages.

It will by default both log to file and stderr so it can be handled more uniformly in container-native environments.
2025-07-25 11:44:30 +02:00
Zoltan Papp
0dab03252c [client, relay-server] Feature/relay notification (#4083)
- Clients now subscribe to peer status changes.
- The server manages and maintains these subscriptions.
- Replaced raw string peer IDs with a custom peer ID type for better type safety and clarity.
2025-07-15 10:43:42 +02:00
Zoltan Papp
4b76d93cec [client] Fix TURN-Relay switch (#3456)
- When a peer is connected with TURN and a Relay connection is established, do not force switching to Relay. Keep using TURN until disconnection.

-In the proxy preparation phase, the Bind Proxy does not set the remote conn as a fake address for Bind. When running the Work() function, the proper proxy instance updates the conn inside the Bind.
2025-03-07 12:00:25 +01:00
Zoltan Papp
30f025e7dd [client] fix/proxy close (#2873)
When the remote peer switches the Relay instance then must to close the proxy connection to the old instance.

It can cause issues when the remote peer switch connects to the Relay instance multiple times and then reconnects to an instance it had previously connected to.
2024-11-11 14:18:38 +01:00
Zoltan Papp
9812de853b Allocate new buffer for every package (#2823) 2024-11-01 00:33:25 +01:00
Zoltan Papp
4e918e55ba [client] Fix controller re-connection (#2758)
Rethink the peer reconnection implementation
2024-10-24 11:43:14 +02:00
Zoltan Papp
30ebcf38c7 [client] Eliminate UDP proxy in user-space mode (#2712)
In the case of user space WireGuard mode, use in-memory proxy between the TURN/Relay connection and the WireGuard Bind. We keep the UDP proxy and eBPF proxy for kernel mode.

The key change is the new wgproxy/bind and the iface/bind/ice_bind changes. Everything else is just to fulfill the dependencies.
2024-10-22 20:53:14 +02:00